A. Recurrent headache fulfilling criterion C
B. A course of electroconvulsive therapy (ECT) has been given
C. Evidence of causation demonstrated by all of the following:
1. headache has developed after ≥50% of ECT sessions
2. each headache has developed within 4 hr after ECT
3. each headache has resolved within 72 hr after ECT
D. Not better accounted for by another ICHD-3 diagnosis.
Clear descriptions of headache associated with electroconvulsive therapy are sparse. Published data are not adequate to define A7.6.3 Post-electroconvulsive therapy (ECT) headache operationally.