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Updated: May 13, 2026

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Published on: April 11, 2019
Electroconvulsive therapy-induced Wolff-Parkinson-White syndrome: a case report
Shingo Enomoto1, Aihide Yoshino, Bonpei Takase
1Department of Psychiatry, National Defense Medical College, Saitama 3598513, Japan.
Objective:
Wolff-Parkinson-White (WPW) syndrome is characterized by premature ventricular excitation due to the presence of an abnormal accessory pathway. Electrocardiography (ECG) of patients with WPW syndrome portrays a short PR interval and a wide QRS interval with a delta wave.
Methods:
Herein, we report the case of a patient with schizophrenia who developed a wide QRS interval with a delta wave immediately following electroconvulsive therapy (ECT).
Results:
Initially, the delta wave disappeared within 2 days after ECT. However, the duration of the delta wave increased exponentially to 4 months when ECT was repeated.
Conclusion:
Although the patient's cardiocirculatory dynamics remained normal, we continued to monitor her ECG until the delta wave disappeared because WPW syndrome can lead to serious arrhythmia.
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