Patients Receiving 100 or More Electroconvulsive Therapy Treatments in a Nationwide Cohort
5 affiliations
- 1Department of Psychiatry Osaka University Graduate School of Medicine Osaka Japan
- 2Kosaka Hospital Osaka Japan
- 3Clinical Research and Education Center Asakayama General Hospital Osaka Japan
- 4Department of Occupational Therapy, Graduate School of Rehabilitation Science Osaka Metropolitan University Osaka Japan
- 5Department of Neuropsychiatry Wakayama Medical University Wakayama Japan
Abstract
Introduction: Very high cumulative exposure to electroconvulsive therapy (ECT) has primarily been described in individual case reports. We examined cumulative ECT exposure in a nationwide Japanese claims database to characterize patients receiving very high numbers of treatments.
Methods: We identified 3,733 patients who received ECT and classified them according to cumulative ECT exposure. Clinical characteristics of patients receiving 100 or more treatments were examined.
Results: Among 3,733 patients who received ECT, 39 (1.0%) received 100 or more treatments. These patients had treatment durations of several years and substantially greater numbers of psychiatric hospitalizations and cumulative hospitalization days. Clozapine use increased across cumulative ECT exposure categories, although it was recorded in only 13% of patients receiving 100 or more treatments.
Conclusion: Patients receiving 100 or more ECT treatments represent an identifiable subgroup of ECT recipients characterized by prolonged and recurrent psychiatric care.
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BibTeX
@article{hata2026patients,
title = {{Patients Receiving 100 or More Electroconvulsive Therapy Treatments in a Nationwide Cohort}},
author = {Masahiro Hata and Yuki Miyazaki and Shun Takahashi},
journal = {Acta Psychiatrica Scandinavica},
year = {2026},
month = aug,
doi = {10.1111/acps.70137},
url = {https://doi.org/10.1111/acps.70137},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Patients Receiving 100 or More Electroconvulsive Therapy Treatments in a Nationwide Cohort
AU - Masahiro Hata
AU - Yuki Miyazaki
AU - Shun Takahashi
PY - 2026
DA - 2026/08/26
JO - Acta Psychiatrica Scandinavica
DO - 10.1111/acps.70137
UR - https://doi.org/10.1111/acps.70137
AB - Introduction: Very high cumulative exposure to electroconvulsive therapy (ECT) has primarily been described in individual case reports. We examined cumulative ECT exposure in a nationwide Japanese claims database to characterize patients receiving very high numbers of treatments. Methods: We identified 3,733 patients who received ECT and classified them according to cumulative ECT exposure. Clinical characteristics of patients receiving 100 or more treatments were examined. Results: Among 3,733 patients who received ECT, 39 (1.0%) received 100 or more treatments. These patients had treatment durations of several years and substantially greater numbers of psychiatric hospitalizations and cumulative hospitalization days. Clozapine use increased across cumulative ECT exposure categories, although it was recorded in only 13% of patients receiving 100 or more treatments. Conclusion: Patients receiving 100 or more ECT treatments represent an identifiable subgroup of ECT recipients characterized by prolonged and recurrent psychiatric care.
SN - 0001-690X
SN - 1600-0447
ER -