Acute effects of single and repeated electroconvulsive therapy on plasma catecholamines and blood pressure in major depressive disorder
1990; Elsevier BV; Volume: 34; Issue: 2 Linguagem: Inglês
10.1016/0165-1781(90)90014-v
ISSN1872-7123
AutoresJ. John Mann, Alan Manevitz, Jaw-Sy Chen, Katherine Johnson, Erica F. Adelsheimer, Renee Azima-Heller, Anthony Massina, Philip J. Wilner,
Tópico(s)Bipolar Disorder and Treatment
ResumoThe role of activation of adrenergic neurons by electroconvulsive therapy (ECT) in its antidepressant action was studied by examining acute sympathetic nervous system (SNS) responses to ECT during a course of treatment in patients with melancholia. ECT had an acute dose-dependent effect on plasma norepinephrine (NE) level and blood pressure. The postictal increase in plasma NE and blood pressure was independent of electrical seizure duration. Acute levels of NE and epinephrine after ECT correlated positively with ECT dosage. No cumulative effect of repeated ECT was found on the SNS responses. ECT does activate the SNS in a dose-dependent fashion. However, alternative strategies seem necessary for studying the action of ECT on noradrenergic neurons to identify effects that are cumulative, correspond more closely to the time course of its antidepressant action, and correlate with clinical outcome.
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