Catatonia in autism: implications across the life span.

BACKGROUND: There is increasing evidence that catatonia is an important source of impairment in adolescents and adults with autism.

AIM: Review of the evaluation, diagnosis, differential diagnosis, and treatment of catatonia in autism.

METHOD: Presentation and discussion of a case-vignette spanning early childhood to adulthood.

RESULTS: Autistic and catatonic symptoms overlap, yet catatonia is diagnosable in about one of seven adolescents and young adults with autism. Case-reports suggest that benzodiazepines and electroconvulsive therapy are effective treatments in the acute and maintenance phase for people with autism who develop catatonia.

CONCLUSIONS: Catatonia should be assessed in people with autism when there is an obvious and marked deterioration in movement, vocalizations, pattern of activities, self-care, and practical skills. Benzodiazepines and electroconvulsive therapy are favored options for acute and maintenance treatment in these cases. Further studies on the possible biological-genetic overlap between autism and catatonia would be helpful.