['To test whether antidepressant medication treatment failure predicts differential remission with electroconvulsive therapy (ECT) in nonpsychotic unipolar depression.', 'Depressed patients diagnosed with the Structured Clinical Interview for DSM-IV receiving ECT were assessed for medication use with the Antidepressant Treatment History Form (ATHF) (N = 345). Response to ECT was assessed with the 24-item Hamilton Rating Scale for Depression. Baseline medication treatment failure was analyzed as a possible predictor of remission status. Dates of study enrollment were from May 1997 to July 2004.', 'Resistance to antidepressant medication as assessed by the ATHF, either taken as a whole or for any individual class of medication, was not predictive of acute remission status with ECT.'] Does antidepressant medication treatment failure predict lower remission with ECT for major depressive disorder : a report from the consortium for research in electroconvulsive therapy?