posted 4/28/2008
Autism - A Note from the Pediatrician
By
Scott J. Iwashyna, M.D.
I have spent the last few weeks reading article after article on CNN.com
about the tragedies and triumphs of families and individuals struggling
with autism. I found myself reading provocative and emotional excerpts
of stories from stars like Jenny McCarthy (whose child is autistic) and
watching “YouTube “ footage of families with autism on the Oprah Winfrey
show. After a few weeks, I found myself sitting at home talking to my
wife saying, “What if I am wrong? What if these people are right?”
In response, I did what any good dork that made it through college, med
school and residency would do. I sat down and read everything I could
about autism and then I read some more. While reading I learned a great
deal about autism, but I also was reminded of the sources of parental
concern. These reasons can be extremely varied from believing that
vaccines are unnatural and therefore unnecessary to political objections
about the government forcing parents to vaccinate their children. The
long list also includes lack of trust in groups like the CDC (Centers
for Disease Control, which outlines vaccine recommendations but was also
responsible for such atrocities as the Tuskegee experiments), mixed
messages from medical professionals, historic concerns about doctors
getting kick-backs for vaccination, perception of risk, arrogance on the
part of physicians/pediatricians, and many more.
None of the major medical institutions have been able to explain the
increase in diagnosis or the cause of autism. Autism is understood to be
a group of genetic disorders with a likely environmental factor or
factors that have not yet been identified. With no answer coming from
the medical institutions parents who care about their children feel
forced to search elsewhere for recommendations and insight. This has
led to a lot of conjecture about possible causes of autism. The latest
case before the Supreme Court will only lead to more parental confusion.
The case involves a young child with a genetic disorder (mitochondrial
disorder) who received 9 vaccines. The patient then had encephalitis
(inflammation around the brain) which may have contributed to regression
in development and symptoms of autism.
One of the main reasons parents struggle with vaccinating their children
is that the rates and publicity of cases of autism and autistic spectrum
disorders (ASD) are rising while the number of cases of diseases for
which we vaccinate continue to decrease. In 2004 there were zero
reported cases of diphtheria reported in the US. A recent outbreak of
mumps in Iowa in 2006 drew some media attention, but there were few
serious complications (one case of encephalitis, no linked spontaneous
abortions). Recent estimates show that 1 in 150 children are diagnosed
with ASD. 1 in 6 children will be diagnosed with developmental disorder
and/or behavioral problem.
After all of my studying, I feel much more confident discussing
vaccinations and letting parents know that there is no evidence of a
link between autism and vaccinations. This is not meant to brush aside
questions and concerns that parents have about either vaccinations or
autism. As a pediatrician, I do not feel it is my job to keep parents
from worrying. It is your job to worry; it is my job to help you figure
out what to worry about. While hearing about children diagnosed with
autism will always be more compelling than any statistics or report I
could explain to parents, they are not the full story. The full story
balances autism with the experiences of doctors like Dr. Jaffe, Dr.
Dawson or Dr. Colley who during their residencies had children dying
every week of H. Flu and Pneumococcal Meningitis. Fears about autism
must be balanced with stories of children and families devastated by
what are now preventable diseases like measles and mumps. As a practice,
we will continue to follow the latest research into the causes of autism
and will continue to recommend the current vaccine schedule.
Right now, the best evidence shows that early diagnosis of autism can
have an amazing impact on patients’ and families’ lives. One of the
earliest symptoms of autism are deficits in what is called Joint
Attention. Joint Attention (JA) refers to the normal spontaneously
occurring behavior whereby infants show enjoyment in sharing an object
or event with another person by looking back and forth between the two.
Later gestures and/or speech are used to engage another’s attention
simply for the enjoyment of sharing the experience. JA begins with a
joyous smile in response to a parent’s smile or talking. At around 8
months a child will learn to follow a parent’s gaze. At 12 months,
children should be learning to “follow a point” (if a parent points at
something interesting and says “look”, the child will look at the object
and then look back at the parent). Not meeting these milestones is a red
flag. Other early red flags include: poor eye contact, poor response to
other’s voices (esp. one’s name being called), more interest in objects
than people, decreased to-and-from babbling, lack of warm joyful
reciprocating expressions. Other serious indications for further
evaluation include no babbling or pointing by 12 months, no single words
by 16 months, no 2-word phrases (not just repeating) by 24 months or
loss of language or social skills at any age.
Please help us to continue to provide the best care possible to your
families. Feel free to share any concerns or questions you have with us
at any time. |