Postictal suppression in electroconvulsive therapy (ECT) according to sex, age, diagnosis and treatment phase

• Published in: European psychiatry 2021-04, Vol.64 (S1), p.S782-S782
• Main Authors: Llorca-Bofí, V., Buil-Reiné, E., Adrados-Pérez, M., Torterolo, G., Sánchez, M., Gisbert-Solà, A., Pàmpols-Pérez, S., Palacios-Garrán, R., Torrent, A., Batalla, I.
• Format: Article
• Language: English
• Subjects: Abstract; Age; E-Poster Viewing; Electroconvulsive therapy; Medical diagnosis; postictal suppression
• ISSN: 0924-9338; 1778-3585
• DOI: 10.1192/j.eurpsy.2021.2070

IntroductionPostictal suppression (PSI) is considered a key feature for ECT’s outcomes because higher values have been correlated with clinical efficacy. However, little is known about the demographic factors influencing this parameter.ObjectivesTo analyze the influence of sex, age, diagnosis and treatment phase on ECT efficacy measured with PSI value.Methods3251 ECT sessions were performed on 182 patients during two years at a university hospital. PSI was retrospectively analyzed comparing it according to sex (male, female), age, main diagnosis (major depressive disorder [MDD], bipolar disorder [BD], schizoaffective disorder [SZA], schizophrenia [SCZ]) and treatment phase (acute [a-ECT], continuation [c-ECT], maintenance [m-ECT]).ResultsPSI values were 69.76 % (SD 17.05) in women and 70.72 % (SD 16.81) in men without differences between sexes (F=0.979; p=0.607). PSI was correlated with age (r=-0.058; p=0.031). MDD PSI was 70.01 % (SD 16.88), for BD it was 69.48 % (SD 17.00), for SZA it was 68.62 % (SD 17.39), and for SCZ it was 70.73 % (SD 17.18), without differences between diagnosis (F=1.085; p=0.141). According to treatment phase, PSI in the a-ECT was 72.26 % (SD 16.43), in the c-ECT it was 67.83 % (SD 17.53), and in the m-ECT it was 68.47 % (SD 17.02), without differences between phases (F=0.901; p=0.915).ConclusionsAlthough there exist statistically significant association between age and PSI it is a negligible correlation with no clinical relevance. Thus, we conclude that neither sex nor age, nor diagnosis, nor treatment phase seem to influence PSI to a relevant degree.DisclosureNo significant relationships.