I know, I know, it's been months without a post. This is what happens when you're a pediatric intern trying to learn all the diseases. And working 12 hour days, 6 days a week really wears on you. I hardly ever feel like reading when I get home, let alone researching for a blog post. But I'm working on it. And given that this is the first anniversary of this blog, I thought it was fitting to pick things back up.
I saw a patient in clinic recently, there for a well visit, who had only seen a doctor once before, shortly after birth. Her parents had refused vaccines in the newborn nursery, and then hadn't seen anyone for the routine 2 month vaccines, and was now showing up for the four month visit. But, parents weren't sure which vaccines they wanted, and they claimed to want to follow Dr. Sears' modified vaccine schedule. So, I got the opportunity to wade through these treacherous waters to see how best to vaccinate this child.
Vaccine refusal, parents who tell us as pediatricians that they do not want to vaccinate their children, is more common than I'd like it. Ideally, all parents would understand the importance of vaccinations, and would follow the CDC schedule without concern. Then maybe we wouldn't see the outbreaks of measles that are currently occurring across the US.
There are some legitimate reasons for not vaccinating. Children with cancer generally cannot receive live vaccines. Other children with impaired immune systems, where they can't fight off certain bugs, may not respond well to vaccines. But for the generally healthy child? There's no overwhelming reason not to vaccinate. Thus, it usually comes down to the parent's ideas about vaccination.
I could spend hours on this topic, going over each of the arguments I've heard. In fact, I've touched on some of them before. In general, parents fall into a handful of categories:
1. Vaccines cause autism.
Without going into all the research, this has been disproven time and time again. But I'll explore the concept more related to the particular vaccine that this is used for: the MMR vaccine.
2. Vaccines contain harmful preservatives, including formaldehyde.
Again, I'll explore this with each individual component, but essentially, it comes down to the fact that the 0.5 mL vaccine contains such a small amount of these preservatives that it is less than an average person consumes in their diet on a day-to-day basis.
3. Vaccines cause disease.
I most often hear this related to the flu vaccine. There's a select few cases where the vaccine does cause disease, and I'll explore those when discussing those particular vaccines. But in general, there's no way for the vaccine to cause disease, because the bug used to create the vaccine has been torn up so much that it doesn't do anything anymore.
4. We are overwhelming our children's immune systems.
The vaccines we use today actually contain less material to stimulate children's immune systems than they did 20 years ago, and they cover more diseases. While not all the vaccines need to be given on the schedule recommended by the CDC, most children do just fine with the schedule, and aren't overwhelmed in the least.
5. The diseases aren't common anymore, so why should I vaccinate my child.
For this, I point out the measles outbreaks, particularly the current one in the Southwest US. These diseases still exist, even if they aren't that common in the US anymore, and we have vaccines because these diseases can be devastating to children. I'll explain more in each of the blogs I post here out.
So, this series is going to go over each of the individual vaccines available. It will be a long series, but in an effort to both learn new things myself, as well as teach others, I want to investigate each vaccine.
If you have any other blanket arguments against vaccines, either from yourself or that you've heard from others, please mention it in the comments, so I can attempt to address it. Maybe you'll convince me that I'm wrong.
Showing posts with label infants. Show all posts
Showing posts with label infants. Show all posts
Sunday, February 1, 2015
Sunday, August 24, 2014
Eating Right: Infant Nutrition
My training is filled with newborn medicine. The first year, I spend one-third of the year taking care of babies, plus I see a lot of babies in my clinic each week (we have at least 2 newborn visits each week). So, naturally, I have learned a lot about infant nutrition. This post, I'm going to primarily talk about formula and transition to table foods, but in another post, I'll talk about the reported benefits of breastfeeding. We'll do this Q&A style today.
What's with all these different formulas?
There are dozens of different types of formula. For the most part, they are marketed for different groups. There are two main categories: cow's milk based formulas, and soy formulas.
Cow's milk formulas process cow's milk heavily into something resembling human breastmilk. The proteins are broken down and adjusted to look more like human breastmilk, additional lactose (milk sugar) is added, and the milk fat is removed and replaced with different types of fat. Note that all this adjustment actually makes the formula very different from cow's milk, so there is no contraindication when we say that you should not give your child milk until they are 12 months old.
A subset of cow's milk formulas are the hydrolyzed, or hypoallergenic, or sometimes called elemental, formulas. These are based on cow's milk, but are further broken down so that the proteins are short, and thus less likely to cause allergic reactions.
Soy milk formulas are designed primarily for vegetarian/vegan parents who do not want to give their child cow's milk based formulas.
There are also a handful of special formulas for children with very specific metabolic syndromes, which are determined by the newborn screen, and not applicable for most children. They tend to be more expensive, and out of the price range of many parents as well.
So, which formula is best?
There isn't a hard and fast rule for this. For most babies, a general cow's milk formula fortified with iron is sufficient. This also tends to be the one that most people start out with, and as such, makes up a huge portion of the market. So, it also tends to be easier to find and sometimes cheaper.
When should I switch formulas?
You want to talk this over with your pediatrician. Some reasons your pediatrician may recommend a different formula may include a significant family history of allergies (especially food allergies), a milk protein intolerance, or a metabolic disorder that requires a certain type of formula.
A significant family history of allergies may predispose your baby to getting allergies to foods, so to minimize that risk, a hypoallergenic, or elemental, formula may be recommended. These may help up to 90% of babies in these situations delay the onset of allergies or avoid them all together.
A milk protein intolerance most commonly presents as blood in the baby's stool. It does not represent a true allergy, but rather a minor reaction to the protein in the cow's milk formulas. However, there can be significant cross sensitivity to the proteins in the soy formulas, so again, a hypoallergenic formula may be recommended.
Generally, babies do not have lactose intolerance. This is something that tends to develop in older children and adults due to a deficiency in the chemical in the gut that breaks down the milk sugar. Babies are designed to break down this sugar, as human breastmilk has it in large quantities. However, there are rare cases of lactose intolerance in babies, and in these children, a lactose-free formula may be used.
How long should I give my baby formula?
You should give your baby formula or breastmilk ONLY until they are at least 4 months old, unless otherwise suggested by your pediatrician. They should not be given juices, sodas, or table food. Formula or breastmilk will provide all the nutrition they need up to about 6-7 months of age. After that, they should continue to get formula until 1 year of age, when they can be switched to cow's milk (or soy milk, etc) as their milk requirement.
How should I introduce foods?
When the child is able to sit up on their own and express interest in the rest of the family eating, you may start introducing 'solid' foods. These should be completely pureed. Most pediatricians will recommend starting with an iron fortified rice cereal or oatmeal or something of that nature, but it's acceptable to start with another iron-rich food, such as finely ground meat.
Following that, you can start introducing different vegetables and fruits. Babies tend to like fruits more than the vegetables, because they are sweeter, but it is important for them to have a balanced diet, so introduce different vegetables early and often. You should feed your baby only single ingredient foods at first--sweet potatoes, peas, carrots, apples, whatever, so long as there is only one thing in the puree. Then, wait three days before introducing a new food. This technique allows you to monitor any allergies or intolerances that may develop in the baby, so you know exactly which food caused it.
If your baby does not like a certain food when you first introduce it, don't give up. Mix it with a food they previously did like and tolerated, and then slowly increase the amount of the new food until there is no more of the former food.
As they get older, you can start introducing new textures, and by 1 year of age, they should be able to eat small finger foods on their own.
Is there any food I can't give my child?
Infants under one year of age should not be given honey. This is because in the processing of honey, there is a change for a bacteria called botulism to get into it, which can then multiple in the infant's intestines and cause a serious illness.
You should also not give your infant under age 1 cow's milk. Yes, I know I just talked about cow's milk formula extensively, but these formulas have been heavily altered and processed to meet the needs of babies. Cow's milk does not have the nutrients babies need and has a high amount of sodium, potassium, and other solutes that may stress the kidneys of an infant. After 12 months, their kidneys have matured enough to allow this. Note that unless your pediatrician says otherwise, you should start with whole milk, because toddlers need the extra fat for brain development.
How's that for a whirlwind tour of nutrition? Any additional questions, let me know at the contact button above or in the comments below.
What's with all these different formulas?
There are dozens of different types of formula. For the most part, they are marketed for different groups. There are two main categories: cow's milk based formulas, and soy formulas.
Cow's milk formulas process cow's milk heavily into something resembling human breastmilk. The proteins are broken down and adjusted to look more like human breastmilk, additional lactose (milk sugar) is added, and the milk fat is removed and replaced with different types of fat. Note that all this adjustment actually makes the formula very different from cow's milk, so there is no contraindication when we say that you should not give your child milk until they are 12 months old.
A subset of cow's milk formulas are the hydrolyzed, or hypoallergenic, or sometimes called elemental, formulas. These are based on cow's milk, but are further broken down so that the proteins are short, and thus less likely to cause allergic reactions.
Soy milk formulas are designed primarily for vegetarian/vegan parents who do not want to give their child cow's milk based formulas.
There are also a handful of special formulas for children with very specific metabolic syndromes, which are determined by the newborn screen, and not applicable for most children. They tend to be more expensive, and out of the price range of many parents as well.
So, which formula is best?
There isn't a hard and fast rule for this. For most babies, a general cow's milk formula fortified with iron is sufficient. This also tends to be the one that most people start out with, and as such, makes up a huge portion of the market. So, it also tends to be easier to find and sometimes cheaper.
When should I switch formulas?
You want to talk this over with your pediatrician. Some reasons your pediatrician may recommend a different formula may include a significant family history of allergies (especially food allergies), a milk protein intolerance, or a metabolic disorder that requires a certain type of formula.
A significant family history of allergies may predispose your baby to getting allergies to foods, so to minimize that risk, a hypoallergenic, or elemental, formula may be recommended. These may help up to 90% of babies in these situations delay the onset of allergies or avoid them all together.
A milk protein intolerance most commonly presents as blood in the baby's stool. It does not represent a true allergy, but rather a minor reaction to the protein in the cow's milk formulas. However, there can be significant cross sensitivity to the proteins in the soy formulas, so again, a hypoallergenic formula may be recommended.
Generally, babies do not have lactose intolerance. This is something that tends to develop in older children and adults due to a deficiency in the chemical in the gut that breaks down the milk sugar. Babies are designed to break down this sugar, as human breastmilk has it in large quantities. However, there are rare cases of lactose intolerance in babies, and in these children, a lactose-free formula may be used.
How long should I give my baby formula?
You should give your baby formula or breastmilk ONLY until they are at least 4 months old, unless otherwise suggested by your pediatrician. They should not be given juices, sodas, or table food. Formula or breastmilk will provide all the nutrition they need up to about 6-7 months of age. After that, they should continue to get formula until 1 year of age, when they can be switched to cow's milk (or soy milk, etc) as their milk requirement.
How should I introduce foods?
When the child is able to sit up on their own and express interest in the rest of the family eating, you may start introducing 'solid' foods. These should be completely pureed. Most pediatricians will recommend starting with an iron fortified rice cereal or oatmeal or something of that nature, but it's acceptable to start with another iron-rich food, such as finely ground meat.
Following that, you can start introducing different vegetables and fruits. Babies tend to like fruits more than the vegetables, because they are sweeter, but it is important for them to have a balanced diet, so introduce different vegetables early and often. You should feed your baby only single ingredient foods at first--sweet potatoes, peas, carrots, apples, whatever, so long as there is only one thing in the puree. Then, wait three days before introducing a new food. This technique allows you to monitor any allergies or intolerances that may develop in the baby, so you know exactly which food caused it.
If your baby does not like a certain food when you first introduce it, don't give up. Mix it with a food they previously did like and tolerated, and then slowly increase the amount of the new food until there is no more of the former food.
As they get older, you can start introducing new textures, and by 1 year of age, they should be able to eat small finger foods on their own.
Is there any food I can't give my child?
Infants under one year of age should not be given honey. This is because in the processing of honey, there is a change for a bacteria called botulism to get into it, which can then multiple in the infant's intestines and cause a serious illness.
You should also not give your infant under age 1 cow's milk. Yes, I know I just talked about cow's milk formula extensively, but these formulas have been heavily altered and processed to meet the needs of babies. Cow's milk does not have the nutrients babies need and has a high amount of sodium, potassium, and other solutes that may stress the kidneys of an infant. After 12 months, their kidneys have matured enough to allow this. Note that unless your pediatrician says otherwise, you should start with whole milk, because toddlers need the extra fat for brain development.
How's that for a whirlwind tour of nutrition? Any additional questions, let me know at the contact button above or in the comments below.
Sunday, August 17, 2014
Emergency Room Visits: When is the Right Time to come in?
It's been a crazy couple weeks. I'm on vacation now, so I'm hoping to get a few of these cranked out so that I don't miss any for a while. Apologies for not keeping up with my self-imposed schedule!
I'm on my Emergency rotation this month, and after having only worked a handful of shifts, I've learned a ton. I've also seen a wide variety of anxious and worried patients and parents. However, I've also seen families who are frustrated by a perceived lack of help.
I encourage all parents, if they think there is a problem, to first call their pediatrician. This is not idle advice... half the things I see in the Emergency Department can be seen in a pediatrician's office, not only faster, but generally cheaper for both the family and the insurance company. I also recognize that there is a trend among primary care physicians in general to refer their patients to the Emergency Department if anything is concerning to them, rather than working it up themselves. This isn't necessarily a bad thing--it can just be very frustrating for the parents.
Let's go through some cases to see who is best treated in the Emergency Department (henceforth referred to as ED), and what expectations for them are.
Patient 1: 3 week old infant comes in with a fever to 101. Otherwise looks healthy.
Should the patient come to the ED? Yes, Absolutely. Infants are not good at localizing infection because their immune system--what helps them fight off disease--is not developed yet. Virtually all their protection comes from mom--either from that protection crossing the placenta prior to delivery, or in the breastmilk afterward. So, these babies are at risk of getting serious infections, and sometimes the only outward sign of those serious infections is fever.
What should you expect in bringing this child in? Because we cannot easily identify the source of the infection, we check the major areas where infections can hide: the urine, the blood, and the spinal fluid. This means collecting urine, drawing blood, and doing a procedure called a lumbar puncture to get the fluid from around the spinal cord. The child will then have to be admitted to the hospital to await the results of those tests.
Patient 2: 3 1/2 year old girl with a few red spots on her back. Otherwise looks and feels healthy. No fever.
Should the patient come to the ED? This one can probably be treated best at the pediatrician's office. If the child has a fever and it's after hours, it's reasonable to bring her in, but without a fever, the spots are either bug bites, hives, or maybe a viral rash. In any case, there isn't a whole lot that the ED is going to do for you other than reassure you that these things are not serious, and that might be better conveyed by your local pediatrician.
What should you expect if you do bring the child into the ED? Long wait times. We have kids that are legitimately sick, so they get priority. I will not fault you for bringing your child in if you are worried, but again, you're probably going to be seen faster and have a better relationship with your pediatrician in the office.
Patient 3: 14 year old who nearly passes out on the toilet, and has gained weight and been overly tired for a year.
Should the patient come to the ED? This is a soft call. Passing out is something that raises red flags for us in the pediatric population, but in this case, there was no actual passing out. So either we're going to say he's sick with some virus, dehydrated, or something along those lines, or we're going to say that maybe he was straining a little too hard on the toilet and that's why he suddenly felt lightheaded.
What should you expect if you do bring this child in? A lot of reassurance. Maybe a few tests if something in the history raises a red flag for us. However, you should NOT expect us to magically cure your child or figure out what is wrong with him, nor should you expect us to be able to expedite your wait to get in to see a specialist. We can rule out any life-threatening causes of the passing out, but we are not going to solve the mystery as to why he has been tired so long, especially if you've already been seen recently by a pediatrician. That is not the purpose of the ED.
Patient 4: 8 year old who has had headaches on and off for months at various times of day. They go away with ibuprofen/Motrin/Advil, but usually come back.
Should this patient come to the ED? This patient was a little complex, but as he only had a minor headache when he came in, there really wasn't anything we could do for him. Since it was a chronic problem, and the headaches were going away, this is really a patient that should be seen in a general pediatrician's office.
What should you expect if you do bring this child in? Again, a lot of reassurance. While there is some diagnostic testing we can do, unless the child is getting worse, vomiting with the headaches, or they do not resolve with medication, the testing really isn't needed on an urgent basis, so we're probably going to refer him back to his primary pediatrician. If you don't have a primary pediatrician, we will gladly give you some numbers for some.
The bottom line? I won't fault you for bringing in your kid to the ED if you are worried something is wrong. But please, if the problem has been going on for a while, and your child doesn't appear to be getting worse, please call your primary pediatrician and have your child be seen there. You will probably get in and out faster anyway (since waiting times in the ED for non-urgent problems can be several hours, even after you are initially seen).
I'm on my Emergency rotation this month, and after having only worked a handful of shifts, I've learned a ton. I've also seen a wide variety of anxious and worried patients and parents. However, I've also seen families who are frustrated by a perceived lack of help.
I encourage all parents, if they think there is a problem, to first call their pediatrician. This is not idle advice... half the things I see in the Emergency Department can be seen in a pediatrician's office, not only faster, but generally cheaper for both the family and the insurance company. I also recognize that there is a trend among primary care physicians in general to refer their patients to the Emergency Department if anything is concerning to them, rather than working it up themselves. This isn't necessarily a bad thing--it can just be very frustrating for the parents.
Let's go through some cases to see who is best treated in the Emergency Department (henceforth referred to as ED), and what expectations for them are.
Patient 1: 3 week old infant comes in with a fever to 101. Otherwise looks healthy.
Should the patient come to the ED? Yes, Absolutely. Infants are not good at localizing infection because their immune system--what helps them fight off disease--is not developed yet. Virtually all their protection comes from mom--either from that protection crossing the placenta prior to delivery, or in the breastmilk afterward. So, these babies are at risk of getting serious infections, and sometimes the only outward sign of those serious infections is fever.
What should you expect in bringing this child in? Because we cannot easily identify the source of the infection, we check the major areas where infections can hide: the urine, the blood, and the spinal fluid. This means collecting urine, drawing blood, and doing a procedure called a lumbar puncture to get the fluid from around the spinal cord. The child will then have to be admitted to the hospital to await the results of those tests.
Patient 2: 3 1/2 year old girl with a few red spots on her back. Otherwise looks and feels healthy. No fever.
Should the patient come to the ED? This one can probably be treated best at the pediatrician's office. If the child has a fever and it's after hours, it's reasonable to bring her in, but without a fever, the spots are either bug bites, hives, or maybe a viral rash. In any case, there isn't a whole lot that the ED is going to do for you other than reassure you that these things are not serious, and that might be better conveyed by your local pediatrician.
What should you expect if you do bring the child into the ED? Long wait times. We have kids that are legitimately sick, so they get priority. I will not fault you for bringing your child in if you are worried, but again, you're probably going to be seen faster and have a better relationship with your pediatrician in the office.
Patient 3: 14 year old who nearly passes out on the toilet, and has gained weight and been overly tired for a year.
Should the patient come to the ED? This is a soft call. Passing out is something that raises red flags for us in the pediatric population, but in this case, there was no actual passing out. So either we're going to say he's sick with some virus, dehydrated, or something along those lines, or we're going to say that maybe he was straining a little too hard on the toilet and that's why he suddenly felt lightheaded.
What should you expect if you do bring this child in? A lot of reassurance. Maybe a few tests if something in the history raises a red flag for us. However, you should NOT expect us to magically cure your child or figure out what is wrong with him, nor should you expect us to be able to expedite your wait to get in to see a specialist. We can rule out any life-threatening causes of the passing out, but we are not going to solve the mystery as to why he has been tired so long, especially if you've already been seen recently by a pediatrician. That is not the purpose of the ED.
Patient 4: 8 year old who has had headaches on and off for months at various times of day. They go away with ibuprofen/Motrin/Advil, but usually come back.
Should this patient come to the ED? This patient was a little complex, but as he only had a minor headache when he came in, there really wasn't anything we could do for him. Since it was a chronic problem, and the headaches were going away, this is really a patient that should be seen in a general pediatrician's office.
What should you expect if you do bring this child in? Again, a lot of reassurance. While there is some diagnostic testing we can do, unless the child is getting worse, vomiting with the headaches, or they do not resolve with medication, the testing really isn't needed on an urgent basis, so we're probably going to refer him back to his primary pediatrician. If you don't have a primary pediatrician, we will gladly give you some numbers for some.
The bottom line? I won't fault you for bringing in your kid to the ED if you are worried something is wrong. But please, if the problem has been going on for a while, and your child doesn't appear to be getting worse, please call your primary pediatrician and have your child be seen there. You will probably get in and out faster anyway (since waiting times in the ED for non-urgent problems can be several hours, even after you are initially seen).
Sunday, July 27, 2014
Safety: What Should I Worry About?
As we discussed last week, safety is a big issue, and some recommendations are summarily ignored. Why do we care so much about safety? Why do we push the bike helmets and childproofing homes and whatnot? Why do we have so many products aimed at safety? After all, 'when I was growing up, our parents didn't care about any of that stuff.'
Well, unintentional injury is the most common cause of death in children (aged 1-14). More than cancer, heart disease and every other disease children get, combined. The only reason it isn't so for the under 1 crowd is because we have a lot of babies born with various congenital conditions that lead to an early death.
Of course, those stats include all unintentional injuries, which covers a lot of things. What, specifically, causes death in children? Well, the CDC puts together that information for us too. The causes that are in the top 10 for all age groups through age 14 are:
1. Unintentional Suffocation (1117 deaths in 2012, differentiated from homicidal suffocation and undetermined suffocation)
2. Homicide (730 in 2012)
3. Drowning (725 in 2012)
4. Motor Vehicle Accidents (437 in 2012)
5. Burn (277 in 2012)
Others high on the list are those related to firearms (317 in 2012, but none in <1 year), pedestrian accidents (104) and environmental causes (89). All of these are something that we're concerned about. Many of these can be prevented by simply educating parents about what to look for. For instance, unintentional suffocation is the most common cause of unintentional injury death in children less than 1 year of age. So, we as pediatricians recommend that the beds not be lined with bumper pads, remove large fluffy pillows from the couches, etc, and careful supervision of these children. The number of children dying from suffocation drops dramatically after age 1. I'll cover safe sleep and SIDS in another blog post. For homicides, there isn't much we can tell the parents. Living in a bad neighborhood, violence at schools--these are things that are often beyond the parent's control. We deal with these as best we can. Drowning is most common in the 1-4 age group, and while pools are a concern, most children actually die in bathtubs, dog bowls, etc. It only takes 3 inches of water to drown--enough to cover the nose and mouth. So, watching the child, especially in the bathtub, is key for preventing these injuries. Motor vehicle accidents are very common, so we focus on making sure the kids are strapped in appropriately. This is likely a whole blog post in and of itself, but the gist is that children under age 2 need to be in a rear-facing seat, and should be in a car seat until they meet the weight recommendations for that seat. Then they should be in a booster seat until they can comfortably wear a seat belt (at about 4 ft 9 inches tall).
Burns are most commonly caused by hot water, and so we make the recommendation to keep water heaters set at 120 degrees F. Not because this is a safe temperature, but because it takes about 5 minutes at this temperature before a serious burn injury develops. Baths should be slightly warmer than body temperature, about 100 degrees F.
There are plenty more safety issues that can be discussed, from medications and poisonings to firearms to falls, but I feel this post is already long enough, so we'll save those for another time.
In the meantime, if you have any questions or comments, feel free to post in the comments below or use the 'contact me' form available as a tab at the top of the page.
Well, unintentional injury is the most common cause of death in children (aged 1-14). More than cancer, heart disease and every other disease children get, combined. The only reason it isn't so for the under 1 crowd is because we have a lot of babies born with various congenital conditions that lead to an early death.
Of course, those stats include all unintentional injuries, which covers a lot of things. What, specifically, causes death in children? Well, the CDC puts together that information for us too. The causes that are in the top 10 for all age groups through age 14 are:
1. Unintentional Suffocation (1117 deaths in 2012, differentiated from homicidal suffocation and undetermined suffocation)
2. Homicide (730 in 2012)
3. Drowning (725 in 2012)
4. Motor Vehicle Accidents (437 in 2012)
5. Burn (277 in 2012)
Others high on the list are those related to firearms (317 in 2012, but none in <1 year), pedestrian accidents (104) and environmental causes (89). All of these are something that we're concerned about. Many of these can be prevented by simply educating parents about what to look for. For instance, unintentional suffocation is the most common cause of unintentional injury death in children less than 1 year of age. So, we as pediatricians recommend that the beds not be lined with bumper pads, remove large fluffy pillows from the couches, etc, and careful supervision of these children. The number of children dying from suffocation drops dramatically after age 1. I'll cover safe sleep and SIDS in another blog post. For homicides, there isn't much we can tell the parents. Living in a bad neighborhood, violence at schools--these are things that are often beyond the parent's control. We deal with these as best we can. Drowning is most common in the 1-4 age group, and while pools are a concern, most children actually die in bathtubs, dog bowls, etc. It only takes 3 inches of water to drown--enough to cover the nose and mouth. So, watching the child, especially in the bathtub, is key for preventing these injuries. Motor vehicle accidents are very common, so we focus on making sure the kids are strapped in appropriately. This is likely a whole blog post in and of itself, but the gist is that children under age 2 need to be in a rear-facing seat, and should be in a car seat until they meet the weight recommendations for that seat. Then they should be in a booster seat until they can comfortably wear a seat belt (at about 4 ft 9 inches tall).
Burns are most commonly caused by hot water, and so we make the recommendation to keep water heaters set at 120 degrees F. Not because this is a safe temperature, but because it takes about 5 minutes at this temperature before a serious burn injury develops. Baths should be slightly warmer than body temperature, about 100 degrees F.
There are plenty more safety issues that can be discussed, from medications and poisonings to firearms to falls, but I feel this post is already long enough, so we'll save those for another time.
In the meantime, if you have any questions or comments, feel free to post in the comments below or use the 'contact me' form available as a tab at the top of the page.
Sunday, July 20, 2014
Children and Heat Safety
Hopefully you've heard of some of the recent deaths after leaving children locked in a car on a hot day: Cooper Harris, Benjamin Seitz, and many others. Some of these stories are a little old, but these stories happen every summer. In fact, roughly 35 children die in hot cars every year. Thirty-five. Countless other pets and elderly individuals also die each year.
Why does this happen? It could be intentional. It could be an accident. It could be lack of awareness. I'm hoping for the latter two, and want to hopefully change thinking.
First and foremost, children should never be left in a car (or anywhere, really) unattended. There's a whole host of things that can go wrong, and without quick intervention, many of these can lead to serious injury or death.
Now, let's speak generally about what heat does to us.
Our bodies produce heat constantly. This leads to a body temperature around 98.6 degrees F (37 degrees C). Actually, your body temperature fluxuates during the day, and is lowest around 2-3 am. If your temperature drops below 36 degrees C (96.8 F), you are considered hypothermic. If your temperature is over 38 degrees C (100.4 F), you are considered to have an elevated temperature. If this is due to an infection or inflammation (a reset in the body's 'normal'), we call it a fever. If it is due to a breakdown in the body's ability to cool, we call it hyperthermia.
When the body's temperature is above it's normal set point (about 37 degrees C in children without a fever), the body responds by sweating. From experience, I'm sure you've noted that you start to sweat even in temperatures below your own body temperature. As I said before, the body produces its own heat, and has to get rid of this heat to the environment. This is fairly easy when the environment is 'room temperature', but as the temperature starts to climb (or there is more body heat to get rid of, as in exercise), it becomes more difficult to do so, and sweating is one way this is done. Sweating gets rid of excess body heat because the water takes the heat with it as it evaporates off the skin. (This is why wiping sweat off can actually make you feel hotter, and why a cool mist can make you feel cooler).
When it is hot outside (>90 degrees F/32 degrees C), and the humidity is high, it can impede the ability for sweat to evaporate, and thus the body to cool down. When the body temperature starts to go up, it means bad things for the person.
Heat exhaustion occurs when the core body temperature is still below 104 degrees F (40 degrees C), and the person is awake and alert. They may complain of dizziness/lightheadedness, headache, rapid heart rate, fast breathing, tiredness, and so forth. But, importantly, they are still able to appropriately answer questions. Heat exhaustion is considered the precursor to heat stroke. This person needs to be moved to a cool place, be given water, and allowed to rest. If symptoms do not improve in 20-30 minutes, they should be brought to the Emergency Department for further evaluation.
Heat stroke is characterized by a core body temperature greater than 104 degrees F (40 degrees C), and an abnormal level of consciousness--the person is not awake or is not able to appropriately answer questions. This is a medical emergency, as it can very rapidly result in multi-organ failure.
You'll notice that heat stroke is defined by the temperature. However, there is a difference between having a fever and being hyperthermic to the point where you are at risk for heat stroke. In fact, rapid cooling with ice packs, water, etc does not help in cases of fever, which is why they are given two separate terms (fever vs. hyperthermia), despite having the same characteristic (elevated core body temperature).
What a fever does to a child is raise the body's set point to higher than 98.6F. Thus, when they have a fever, they may not be sweating, because the body is trying to stay hot. It is when you 'break' the fever and they start to come down to their normal temperature that they start to sweat. People tend to get worried for 'high' fevers, up above 103 degrees F, but the body cannot really produce temperatures above 105 degrees F on its own, and children with fevers, even high fevers, do not have the same complications as children with heat stroke. The take home from this point is that if your child has a high fever, you should bring them to see the physician just in case it is not a fever and to make sure that you are treating the infection appropriately.
So, what can be done to prevent heat exhaustion and heat stroke?
Since most often, these occur when children are outside playing sports (exertional heat stroke), it is important to incorporate several breaks, and emphasize adequate hydration (with a sports drink solution, since sweat causes the loss of some important electrolytes) during play.
As for the origin of this article--the publicity of automotive heat deaths in children--you should not be leaving a child in a car during the warmer months. It can get very hot inside the vehicle, even if it is only left for a few minutes. If the vehicle is in the sun, it can get even warmer. Leaving the windows cracked is not enough to prevent this rise in temperature. Putting up a sunshade may delay the time for the temperature to rise slightly, but not enough to safely leave a child in the car.
Just don't do it. Take your child with you, even if they are sleeping. Especially if they are sleeping. I would rather your child annoy you in the store than for you to live with the devastation of losing your child.
Why does this happen? It could be intentional. It could be an accident. It could be lack of awareness. I'm hoping for the latter two, and want to hopefully change thinking.
First and foremost, children should never be left in a car (or anywhere, really) unattended. There's a whole host of things that can go wrong, and without quick intervention, many of these can lead to serious injury or death.
Now, let's speak generally about what heat does to us.
Our bodies produce heat constantly. This leads to a body temperature around 98.6 degrees F (37 degrees C). Actually, your body temperature fluxuates during the day, and is lowest around 2-3 am. If your temperature drops below 36 degrees C (96.8 F), you are considered hypothermic. If your temperature is over 38 degrees C (100.4 F), you are considered to have an elevated temperature. If this is due to an infection or inflammation (a reset in the body's 'normal'), we call it a fever. If it is due to a breakdown in the body's ability to cool, we call it hyperthermia.
When the body's temperature is above it's normal set point (about 37 degrees C in children without a fever), the body responds by sweating. From experience, I'm sure you've noted that you start to sweat even in temperatures below your own body temperature. As I said before, the body produces its own heat, and has to get rid of this heat to the environment. This is fairly easy when the environment is 'room temperature', but as the temperature starts to climb (or there is more body heat to get rid of, as in exercise), it becomes more difficult to do so, and sweating is one way this is done. Sweating gets rid of excess body heat because the water takes the heat with it as it evaporates off the skin. (This is why wiping sweat off can actually make you feel hotter, and why a cool mist can make you feel cooler).
When it is hot outside (>90 degrees F/32 degrees C), and the humidity is high, it can impede the ability for sweat to evaporate, and thus the body to cool down. When the body temperature starts to go up, it means bad things for the person.
Heat exhaustion occurs when the core body temperature is still below 104 degrees F (40 degrees C), and the person is awake and alert. They may complain of dizziness/lightheadedness, headache, rapid heart rate, fast breathing, tiredness, and so forth. But, importantly, they are still able to appropriately answer questions. Heat exhaustion is considered the precursor to heat stroke. This person needs to be moved to a cool place, be given water, and allowed to rest. If symptoms do not improve in 20-30 minutes, they should be brought to the Emergency Department for further evaluation.
Heat stroke is characterized by a core body temperature greater than 104 degrees F (40 degrees C), and an abnormal level of consciousness--the person is not awake or is not able to appropriately answer questions. This is a medical emergency, as it can very rapidly result in multi-organ failure.
You'll notice that heat stroke is defined by the temperature. However, there is a difference between having a fever and being hyperthermic to the point where you are at risk for heat stroke. In fact, rapid cooling with ice packs, water, etc does not help in cases of fever, which is why they are given two separate terms (fever vs. hyperthermia), despite having the same characteristic (elevated core body temperature).
What a fever does to a child is raise the body's set point to higher than 98.6F. Thus, when they have a fever, they may not be sweating, because the body is trying to stay hot. It is when you 'break' the fever and they start to come down to their normal temperature that they start to sweat. People tend to get worried for 'high' fevers, up above 103 degrees F, but the body cannot really produce temperatures above 105 degrees F on its own, and children with fevers, even high fevers, do not have the same complications as children with heat stroke. The take home from this point is that if your child has a high fever, you should bring them to see the physician just in case it is not a fever and to make sure that you are treating the infection appropriately.
So, what can be done to prevent heat exhaustion and heat stroke?
Since most often, these occur when children are outside playing sports (exertional heat stroke), it is important to incorporate several breaks, and emphasize adequate hydration (with a sports drink solution, since sweat causes the loss of some important electrolytes) during play.
As for the origin of this article--the publicity of automotive heat deaths in children--you should not be leaving a child in a car during the warmer months. It can get very hot inside the vehicle, even if it is only left for a few minutes. If the vehicle is in the sun, it can get even warmer. Leaving the windows cracked is not enough to prevent this rise in temperature. Putting up a sunshade may delay the time for the temperature to rise slightly, but not enough to safely leave a child in the car.
Just don't do it. Take your child with you, even if they are sleeping. Especially if they are sleeping. I would rather your child annoy you in the store than for you to live with the devastation of losing your child.
Sunday, June 22, 2014
The Elusive Good Night's Sleep
I know, I haven't posted the past 2 weeks. This is what happens when you have to move and lack internet for a week.
Sleep is a very important part of our lives. After all, we spent roughly 1/3 of our lives sleeping. There are several theories on why, exactly, we need sleep. My favorite is the converting of short-term memory to long-term memory. Essentially, if you don't get enough sleep, you won't learn anything new. But for now, I'm going to focus on how much we need and how to get that sleep. In fact, this was the focus of a recently published article that has caught the attention of many news sites.
It's more than just memory, though. Getting less sleep than you need can result in poor academic performance. According to a small study by the American Academy of Sleep Medicine, this effect is as much as binge drinking or smoking marijuana, independent of other risk factors such as psychiatric disorders.
Sleep has also been linked to weight, particularly in adults. A recent study published in Pediatrics shows that getting less than the recommended amount of sleep in infancy and childhood is linked to obesity by age 7. Indeed, even how much a parent sleeps can affect how much the child sleeps, and thus his or her risk of obesity later in life.
Finally, sleep is the time when many hormones are released. For children, the most important of these is growth hormone. That's right--if children don't get enough sleep, they might not grow properly. As an aside, the unbalance of hormones is likely part of the reason why lack of sleep can lead to obesity--the body produces hormones to increase alertness, which promote deposition of fat for future use.
So clearly sleep is important. But how much do we need?
The amount of sleep we need is entirely based on age. Infants sleep most of the day, while adults only need 8 hours or so. Infants also don't sleep at 'normal' times, because they are accustomed to being in the womb and rocked to sleep while mom was awake and walking, and awake when mom was resting. When adults don't get enough sleep, they tend to develop quick tempers and have low energy. When children don't get enough sleep, though, they tend to become hyperactive. Many parents have experienced this with infants that cry more when they aren't put to bed on time.
By two months of age or so, the circadian rhythm starts to develop. This is our body's innate way of telling time, and is based on light clues. In a completely cut-off environment, a normal circadian rhythm lasts about 25 hours. Of course, we don't live in a world where the day is 25 hours long, so this is where the light cues come in.
One of the first things we, as pediatricians, do when we hear a child is not getting enough sleep is to ask about sleep hygiene. Where do you sleep? What time do you go to bed? What time do you get up? What else is in your room?
Lack of light triggers the release of melatonin, a hormone that helps us feel sleepy and fall asleep. If your room is filled with light, even lights from computers, iPads, televisions, etc, you could inhibit your release of melatonin and have a harder time falling asleep. So, one of the first things we recommend is to get those computers and televisions and whatnot out of the bedroom. Even if you don't use them right before bed, the lights that stay on can influence your melatonin production. You can also condition yourself unintentionally into not associating the bedroom with sleep, but rather with activity.
Getting up and going to bed at the same time every day, even on weekends, can also help your body just get used to going to sleep at the same time. I realize this isn't ideal for adults, but there's no reason kids shouldn't have a consistent bedtime.
Finally, as we get older (by early elementary school), our sleep cycles become more consistent and average out to 90 minutes each. Waking in the middle of a sleep cycle can be very disorienting, and can make you feel tired all day. So, bedtime and alarms should be planned so there is a multiple of 90 minutes in the sleep time. In other words, you should try to ensure you are getting 6 hours, 7.5 hours, 9 hours, or 10.5 hours of sleep (depending on age, with younger kids needing more sleep), rather than 8, 10, or 6.5 hours.
This is only an introduction, and I'm sure I'll talk about it more in the weeks to come, but to not bore you too much, I'll leave it there for now.
Have additional questions? Leave them in the comments!
Sleep is a very important part of our lives. After all, we spent roughly 1/3 of our lives sleeping. There are several theories on why, exactly, we need sleep. My favorite is the converting of short-term memory to long-term memory. Essentially, if you don't get enough sleep, you won't learn anything new. But for now, I'm going to focus on how much we need and how to get that sleep. In fact, this was the focus of a recently published article that has caught the attention of many news sites.
It's more than just memory, though. Getting less sleep than you need can result in poor academic performance. According to a small study by the American Academy of Sleep Medicine, this effect is as much as binge drinking or smoking marijuana, independent of other risk factors such as psychiatric disorders.
Sleep has also been linked to weight, particularly in adults. A recent study published in Pediatrics shows that getting less than the recommended amount of sleep in infancy and childhood is linked to obesity by age 7. Indeed, even how much a parent sleeps can affect how much the child sleeps, and thus his or her risk of obesity later in life.
Finally, sleep is the time when many hormones are released. For children, the most important of these is growth hormone. That's right--if children don't get enough sleep, they might not grow properly. As an aside, the unbalance of hormones is likely part of the reason why lack of sleep can lead to obesity--the body produces hormones to increase alertness, which promote deposition of fat for future use.
So clearly sleep is important. But how much do we need?
The amount of sleep we need is entirely based on age. Infants sleep most of the day, while adults only need 8 hours or so. Infants also don't sleep at 'normal' times, because they are accustomed to being in the womb and rocked to sleep while mom was awake and walking, and awake when mom was resting. When adults don't get enough sleep, they tend to develop quick tempers and have low energy. When children don't get enough sleep, though, they tend to become hyperactive. Many parents have experienced this with infants that cry more when they aren't put to bed on time.
By two months of age or so, the circadian rhythm starts to develop. This is our body's innate way of telling time, and is based on light clues. In a completely cut-off environment, a normal circadian rhythm lasts about 25 hours. Of course, we don't live in a world where the day is 25 hours long, so this is where the light cues come in.
One of the first things we, as pediatricians, do when we hear a child is not getting enough sleep is to ask about sleep hygiene. Where do you sleep? What time do you go to bed? What time do you get up? What else is in your room?
Lack of light triggers the release of melatonin, a hormone that helps us feel sleepy and fall asleep. If your room is filled with light, even lights from computers, iPads, televisions, etc, you could inhibit your release of melatonin and have a harder time falling asleep. So, one of the first things we recommend is to get those computers and televisions and whatnot out of the bedroom. Even if you don't use them right before bed, the lights that stay on can influence your melatonin production. You can also condition yourself unintentionally into not associating the bedroom with sleep, but rather with activity.
Getting up and going to bed at the same time every day, even on weekends, can also help your body just get used to going to sleep at the same time. I realize this isn't ideal for adults, but there's no reason kids shouldn't have a consistent bedtime.
Finally, as we get older (by early elementary school), our sleep cycles become more consistent and average out to 90 minutes each. Waking in the middle of a sleep cycle can be very disorienting, and can make you feel tired all day. So, bedtime and alarms should be planned so there is a multiple of 90 minutes in the sleep time. In other words, you should try to ensure you are getting 6 hours, 7.5 hours, 9 hours, or 10.5 hours of sleep (depending on age, with younger kids needing more sleep), rather than 8, 10, or 6.5 hours.
This is only an introduction, and I'm sure I'll talk about it more in the weeks to come, but to not bore you too much, I'll leave it there for now.
Have additional questions? Leave them in the comments!
Sunday, May 4, 2014
To Cut or Not To Cut: The Debate Over Circumcision
Apologies for the hiatus. I went on an out-of-country vacation and due to everything else going on leading up to it, I didn't have the opportunity to write-up posts for when I was gone. This one was actually supposed to be published on 4/20, but I didn't actually finish it, so you get it today instead.
This has come into press a lot more than I expected it to lately, so I figured it was good enough for another topic. Circumcision has been around for thousands of years. Traditionally, it was a way of distinguishing the Hebrews from everyone else, but in Western society as a whole, it has become fairly popular. In fact, in the US, we had a rate of 83% circumcision of newborn males in the 1960s. This has declined to 77% in 2010, but this is still high compared to, say, Hispanic cultures (44% of Hispanic men in America are circumcised, compared to 91% of white men), and may be more reflective of the population of the US than a change in attitudes about circumcision.
The main argument against circumcision is that it is a surgical procedure that has lifelong consequences and only serves a cosmetic function. Some will go to the point of comparing it to female genital mutilation. Others will argue only that it is an issue of informed consent, and that males should be able to make the decision for themselves when they reach a certain age. This particularly argument is usually rebutted with the fact that parents make many decisions for their children, medical or otherwise, which have more notable consequences than the presence or absence of a foreskin.
The primary argument for circumcision is that it reduces the risk of a variety of diseases, including early urinary tract infections (which can lead to renal scarring), the transmission of HIV, and the risk of penile cancer. Most of the studies looking at the transmission of HIV were done in subSaharan Africa. These studies were so compelling that they were stopped early, and demonstrated a 66% decrease in the HIV transmission rate. Granted, these studies were done in adults. But, circumcision in infant boys is generally considered to be less costly, easier to perform, and safer than adult circumcision, so if it poses such a great benefit later in life, it'd be best to do it in infancy.
It should be noted, however, that the advocates for circumcision do not claim that it reduces all sexually transmitted diseases. One study shows that there is no difference in Herpes (HSV-2) transmission in circumcised vs uncircumcised men.
Currently, physicians take a more neutral stance. The AAP states that circumcision has benefits that outweigh the risks, but that the benefits are small enough that it's up to the individual families on whether or not to do the procedure. In the past, the AAP has taken a more negative view of circumcision, claiming in the 70s that there was no medical benefit to circumcision, but not taking a stance against it. However, there are those that take a hard stance one way or the other: one compares circumcision to vaccines, believing that the benefits are so great that circumcision should be routine.
What are your thoughts on the matter?
This has come into press a lot more than I expected it to lately, so I figured it was good enough for another topic. Circumcision has been around for thousands of years. Traditionally, it was a way of distinguishing the Hebrews from everyone else, but in Western society as a whole, it has become fairly popular. In fact, in the US, we had a rate of 83% circumcision of newborn males in the 1960s. This has declined to 77% in 2010, but this is still high compared to, say, Hispanic cultures (44% of Hispanic men in America are circumcised, compared to 91% of white men), and may be more reflective of the population of the US than a change in attitudes about circumcision.
The main argument against circumcision is that it is a surgical procedure that has lifelong consequences and only serves a cosmetic function. Some will go to the point of comparing it to female genital mutilation. Others will argue only that it is an issue of informed consent, and that males should be able to make the decision for themselves when they reach a certain age. This particularly argument is usually rebutted with the fact that parents make many decisions for their children, medical or otherwise, which have more notable consequences than the presence or absence of a foreskin.
The primary argument for circumcision is that it reduces the risk of a variety of diseases, including early urinary tract infections (which can lead to renal scarring), the transmission of HIV, and the risk of penile cancer. Most of the studies looking at the transmission of HIV were done in subSaharan Africa. These studies were so compelling that they were stopped early, and demonstrated a 66% decrease in the HIV transmission rate. Granted, these studies were done in adults. But, circumcision in infant boys is generally considered to be less costly, easier to perform, and safer than adult circumcision, so if it poses such a great benefit later in life, it'd be best to do it in infancy.
It should be noted, however, that the advocates for circumcision do not claim that it reduces all sexually transmitted diseases. One study shows that there is no difference in Herpes (HSV-2) transmission in circumcised vs uncircumcised men.
Currently, physicians take a more neutral stance. The AAP states that circumcision has benefits that outweigh the risks, but that the benefits are small enough that it's up to the individual families on whether or not to do the procedure. In the past, the AAP has taken a more negative view of circumcision, claiming in the 70s that there was no medical benefit to circumcision, but not taking a stance against it. However, there are those that take a hard stance one way or the other: one compares circumcision to vaccines, believing that the benefits are so great that circumcision should be routine.
What are your thoughts on the matter?
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