The comparative study was done of bilateral and right unilateral (non-dominat) ECT given to the chronic schizophrenics with depressive features, in the special reference to its therapeutic efficacy and memory changes. The number of patients in each group was 15(10 males and 5 females), and age range was 20 to 47. Therapeutic response to the two modes of treatment was evaluated by the number of treatment administered to obtain symptom-relief, and the score of Zung’s “The Self-Rating Depression Scale”. After 6 sessions of treatment, both groups showed good response and no difference was noted between the two. Comparison of memory changes before and after 6 sessions of treatment was evaluated by the number of confused or severely regressed patients and the score of Wechsler Memory Scale. The bilateral group showed a significant difference statistically, while the unilateral group showed no significance. There was no direct relation between memory change and therapeutic effect. The author suggests that right unilateral ECT seems preferable to bilateral ECT.
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