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Canadian Journal of Anesthesia 48:405-408 (2001)
© Canadian Anesthesiologists' Society, 2001
Cardiothoracic Anesthesia, Respiration and Airway

Electroconvulsive therapy impairs systolic performance of the left ventricle

Yuji Kadoi, MD, Shigeru Saito, MD, Shinjiro Seki, MD, Masanobu Ide, MD, Toshihiro Morita, MD and Fumio Goto, MD

From the Department of Anesthesiology and Reanimatology, Gunma University, School of Medicine, 3-39-22, Showa-machi, Maebashi, Gunma 371-8511, Japan.

Address correspondence to: Dr. Yuji Kadoi, Department of Anesthesiology and Reanimatology, Gunma University, School of Medicine, 3-39-22, Showa-machi, Maebashi, Gunma 371-8511 Japan. Phone:81-272-20-7111; Fax: 81-272-20-8473; E-mail: kadoi{at}med.gunma-u.ac.jp

Purpose: In this observational study, we examined left ventricular systolic performance during electroconvulsive therapy (ECT), using an echocardiographic automated border detection system.

Methods: Nine ASA I or II patients scheduled for ECT were studied. Bilateral ECT was performed after the administration of propofol 1 mg•kg–1, succinylcholine 1 mg•kg–1, and assisted mask ventilation with 100% oxygen. Cardiac function was monitored by transthoracic echocardiography, prior to anesthesia induction and throughout the ECT procedure until ten minutes after the seizure.

Results: Increased end-systolic area and decreased fractional area change were observed at one minute after the seizure compared to the awake condition. No regional wall motion abnormalities were observed in all patients both at baseline condition and during the ECT.

Conclusion: Systolic performance of the left ventricle estimated by echocardiography decreased transiently in the immediate period after the electric shock.




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