Autism

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Autism spectrum disorders (ASDs) are a group of 5 neuro developmental conditions (autism, Asperger syndrome, pervasive developmental disorder not otherwise specified [PDD-NOS], Rett syndrome, and disintegrative childhood disorder).1 Once thought to be rare, the incidence of these disorders is now estimated to be 1 in 150 children in the general population.2 Furthermore, the number of recognized cases has increased markedly in recent years.

In my January column (“Fishing Expeditions and Autism: A Big Catch for Genetic Research?” Psychiatric Times, January 2009, page 12), I described the great difficulties research­ers face characterizing the genetic basis of the disease. Complexities range from trying to establish a stable diagnostic profile to making sense of the few isolated mutations that show clear associations (either with disease or syndrome variants).

The number of prescriptions for antipsychotic treatment of teenagers has increased sharply in office-based medical practice. Adolescents with psychotic symptoms frequently present for clinical evaluation, and early-onset schizophrenia spectrum disorders (onset of psychotic symptoms before the age of 18 years) represent an important consideration in the differential diagnosis in these youths

No other psychiatric diagnosis has more profound negative implications than autism. On the surface, autism impacts social, emotional, behavioral, and academic functioning. However, autism is pervasive in ways less immediately observable, and, as a result, children with autism require developmental and educational interventions that are different in both form and intensity from those required by children with other special needs.

In May 2007, the novelist Ann Bauer went public with the tribulations of her autistic son. When catatonia developed, a diagnosis of schizophrenia was made, and antipsychotic medications were prescribed, but with little benefit. When the catatonia syndrome was recognized as independent of schizophrenia and successfully treated, her son returned to a more normal life.1,2

Attachment may be defined as a composite of behaviors in an infant, toddler, or young child that is designed to achieve physical and emotional closeness to a mother or preferred caregiver when the child seeks comfort, support, nurturance, or protection.

In our presentation at the 2006 annual meeting of the American Academy of Child and Adolescent Psychiatry, we suggested that child psychiatrists who come across a child with the profile of the following hypothetical case should consider whether the child may have deficits that are not currently covered by DSM-IV nosology: either a nonverbal learning disability (NVLD) or a sensory processing disorder (SPD).

Recent imaging studies have shown that patients with autism spectrum disorders (ASDs) who were presented with images of human faces had lower responses in amygdala activity than controls. These studies strengthen the connection between the amygdala and the abnormal social-emotional behavior seen in patients with ASDs, said Chris Ashwin, PhD, senior research associate at the Autism Research Centre in the Department of Psychiatry at the University of Cambridge, UK.

In a recent article on genetic counseling in psychiatry, Christine Finn, MD, and Jordan W. Smoller, MD, ScD, noted that family and twin studies have documented the familiality and heritability of schizophrenia, bipolar disorder, major depression, anxiety disorders, autism, attention-deficit/hyper- activity disorder (ADHD), and Tourette syndrome, among others, and that molecular genetic studies have begun to identify possible susceptibility loci for several of these disorders, most notably schizophrenia.

Effective antiepileptic therapy depends on balancing seizure control and tolerability, said Manoj Raghavan, MD, PhD, during a presentation at the midyear meeting of the American Epileptic Society in Chicago this past June. Tolerability places a ceiling on how far you can go in controlling seizures using medications alone, he commented.

Autism is a highly prevalent, highly heterogeneous disorder of unknown etiology. Studies to clearly establish the efficacy of various classes of psychoactive drugs are scarce. Nonetheless, available findings do support the efficacy of atypical antipsychotics and antidepressants in treating the core symptoms of repetitive behavior.

Many children today are receiving inadequate mental health care due to a decrease in the number of well-trained providers, while the prevalence of children's mental health problems is increasing. Legislation is pending in the U.S. House and Senate to address these issues.

Stereotypical portrayals of people with mental illness are as old as Hollywood itself. What are some of the clinical implications of the continued stigmatization of the mentally ill in television and film?

Epilepsy is one of the most common chronic neurological disorders of childhood. Therapy should consist of education to reduce fears and concerns, psychotherapy to decrease triggers for seizures, and careful medication monitoring to avoid those drugs that reduce seizure threshold or have excessive interactions with antiepileptic drugs.