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  • Title: Right unilateral electroconvulsive therapy at six times seizure threshold.
    Author: Little JD, Munday J, Lyall G, Greene D, Chubb G, Orr M.
    Journal: Aust N Z J Psychiatry; 2003 Dec; 37(6):715-9. PubMed ID: 14636387.
    Abstract:
    OBJECTIVE: To examine the clinical practice of right unilateral electroconvulsive therapy (ECT) administered at six times seizure threshold (6 x RUL ECT). METHOD: A retrospective review of all patients who received 6 x RUL ECT between July 2000 and June 2002. RESULTS: Twenty-one patients across a range of ages and diagnostic groups received D'Elia unilateral ECT at a seizure dosage at or above 388.8 milliCoumbs (mC). In order to sustain predetermined criteria for seizure adequacy, energy was increased in 71% of patients. Final seizure lengths of 45 s electroencephalographic (EEG) activity, 28 s motor activity (cuffed) and a post-ictal suppression index (PSI) of 83% were recorded. Eighty percent of patients responded after a mean of 7.0 treatments. Cognitive side-effects were noted in 21% of patients. Fifty-two percent relapsed on average 6.3 months after the last treatment despite continuation pharmacotherapy. CONCLUSIONS: 6 x RUL ECT was found to be clinically effective, associated with cognitive side-effects and relapse. The debate over electrode placement is likely to continue.
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