PART 3 / CH 46
ECT
Renee Snow and Roy Perlis
A. Indications
· major depression +/- psychotic features; mania; refractory psychosis, catatonia
B. Contraindications
· absolute: none
· relative: unrepaired critical AS, ejection fraction <20%
C. Routine pre-ECT workup
· CBC, Electrolytes/BUN/Cr, U/A, CXR, EKG
D. Admitting orders
· consult somatic therapies, begin ECT
· NPO after midnight for ECT (remember IV hydration if needed)
· d/c or reduce benzodiazepines, anticonvulsants,
Lithium (causes confusion)
· for anxiety or insomnia, consider Trilafon, Benadryl, Vistaril
E. Major side effects
· encephalopathy: generally resolves within 24h; delirium workup
· memory loss: anterograde amnesia resolves within one month;
retrograde amnesia generally involves recent weeks.
· post-ECT headache: Tylenol; premedicate with PR Tylenol
F. Maintenance
· Significant relapse risk (>50% at 12 months) without medications
· Consider maintenance ECT
source: Welch CA (1997) ECT in the General Hospital. In: Cassem NH (ed.), MGH Handbook of General Psychiatry (4th ed.)