Signs and tests
All children should have routine developmental exams by their pediatrician. Further testing may be needed if there is concern on the part of the clinician or the parents. This is particularly true whenever a child fails to meet any of the following language milestones:
- Babbling by 12 months
- Gesturing (pointing, waving bye-bye) by 12 months
- Single words by 16 months
- Two-word spontaneous phrases by 24 months (not just echoing)
- Loss of any language or social skills at any age.
These children might receive a hearing evaluation, a blood lead test, and a screening test for autism (such as the Checklist for Autism in Toddlers (CHAT) or the Autism Screening Questionnaire).
A health care provider experienced in the diagnosis and treatment of autism is usually necessary for the actual diagnosis. Because there is no biological test for autism, the diagnosis will often be based on very specific criteria laid out in a book called the Diagnostic and Statistical Manual IV.
The other pervasive developmental disorders include:
- Asperger syndrome (like autism, but with normal language development)
- Rett syndrome (very different from autism, and only occurs in females)
- Childhood disintegrative disorder (rare condition where a child acquires skills, then loses them by age 10)
- Pervasive developmental disorder - not otherwise specified (PDD-NOS), also called atypical autism.
An evaluation of autism will often include a complete physical and neurologic examination. It may also include a specific diagnostic screening tool, such as:
- Autism Diagnostic Interview - Revised (ADI-R)
- Autism Diagnostic Observation Schedule (ADOS)
- Childhood Autism rating Scale (CARS)
- Gilliam Autism Rating Scale
- Pervasive Developmental Disorders Screening Test-Stage 3
Children with known or suspected autism will often have genetic testing (looking for chromosome abnormalities) and perhaps metabolic testing.
Autism encompasses a broad spectrum of symptoms. Therefore, a single, brief evaluation cannot predict a child's true abilities. Ideally, a team of different specialists will evaluate the child. They might evaluate speech, language, communication, thinking abilities, motor skills, success at school, and other factors.
Sometimes people are reluctant to have a child diagnosed because of concerns about labeling the child. However, failure to make a diagnosis can lead to failure to get the treatment and services the child needs.
Treatment
An early, intensive, appropriate treatment program will greatly improve the outlook for most young children with autism. Most programs will build on the interests of the child in a highly structured schedule of constructive activities. Visual aids are often helpful.
Treatment is most successful when geared toward the child's particular needs. An experienced specialist or team should design the individualized program. A variety of effective therapies are available, including applied behavior analysis (ABA), speech-language therapy, medications, occupational therapy, and physical therapy. Sensory integration and vision therapy are also common, but there is little research supporting their effectiveness. The best treatment plan may use a combination of techniques.
APPLIED BEHAVIORAL ANALYSIS (ABA)
This program is for younger children with an autism spectrum disorder. It highly effective in many cases. ABA uses a one-on-one teaching approach that relies on reinforced practice of various skills. The goal is to get the child close to typical developmental functioning.
ABA programs are usually conducted within a child’s home, under the supervision of a behavioral psychologist. Unfortunately, these programs can be very expensive and have not been widely adopted by school systems. Parents often must seek funding and staffing from other sources, which can be hard to find in many communities.
TEACCH
Another program is called the Treatment and Education of Autistic and Related Communication Handicapped Children (TEACCH). TEACCH, developed as a statewide program in North Carolina, uses picture schedules and other visual cues. These help the child work independently and to organize and structure their environments. Though TEACCH tries to enhance a child's adaptation and skills, there is also an acceptance of the deficits associated with autism spectrum disorders. In contrast to ABA programs, TEACCH programs do not anticipate that children will achieve typical developmental progress in response to the treatment.
MEDICINE
Medicines are often used to treat behavior or emotional problems that people with autism may have. These include hyperactivity, impulsiveness, attention problems, irritability, mood swings, outbursts, tantrums, aggression, extreme compulsions that the child finds it impossible to suppress, sleep difficulty, and anxiety. Currently, only risperidone is approved for treatment of children ages 5-16 with irritability and aggression associated with autism.
DIET
Some children with autism appear to respond to a gluten-free or a casein-free diet. Gluten is found in foods containing wheat, rye, and barley. Casein is found in milk, cheese, and other dairy products. Not all experts agree that dietary changes will make a difference, and not all reports studying this method have shown positive results.
If considering these or other dietary changes, seek guidance from both a gastroenterologist (doctor who specializes in the digestive system) and a registered dietitian. You want to be sure that the child is still receiving adequate calories, nutrients, and a balanced diet.
OTHER APPROACHES
Beware that there are widely publicized treatments for autism that do not have scientific support, and reports of "miracle cures" that do not live up to expectations. If your child has autism, it may be helpful to talk with other parents of children with autism, talk with autism specialists, and follow the progress of research in this area, which is rapidly developing.
At one time, there was enormous excitement about using secretin infusions. Now, after many studies have been conducted in many laboratories, it's possible that secretin is not effective after all, but research is ongoing.