Longer depressive episodes and medication failure at baseline are robust predictors of poor response to ECT, with effect sizes that are modest but clinically relevant. Patient characteristics used traditionally such as age, psychosis, and melancholic features are less likely to be clinically useful. More robust clinical and biological predictors are needed for management of depressed patients considering ECT.
Frequent aggression toward others and repetitive self-injurious behaviors (SIB) can be features of catatonia in patients with autism. Similar to catatonia secondary to other etiologies, catatonia associated with autism responds well to treatment with benzodiazepines and/or electroconvulsive therapy (ECT). The authors report here on two adolescent patients with autism who presented with severe aggression, one of whom also engaged in repetitive SIB. With ongoing treatment with maintenance ECT, dramatic reduction in aggression and SIB were noted, allowing both patients a reasonable quality of life in their own homes. Attempts to taper off ECT coincided with return of aggression symptoms, although not SIB.
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