Increased propofol requirement during succeeding administrations for electroconvulsive therapy - 24/08/11

Abstract |
Study objective |
To study patients' requirement for propofol dosages during the course of repeated deep sedation for electroconvulsive therapy (ECT).
Design |
Prospective study.
Setting |
Outpatient psychiatric clinic in a tertiary-care, university-affiliated, 1100-bed metropolitan hospital.
Patients |
30 patients undergoing 5-day successive ECT for depression over a 1-month period.
Interventions |
Propofol and subsequently succinylcholine were injected intravenously (IV) to obtain deep sedation and relaxation followed by a 60 ± 5 (SD) joules-ECT.
Measurements |
The dosage that was required to deeply sedate the patients, the duration of the ECT, and interval of time to full wakefulness and coherent response were measured.
Main results |
13 of 30 patients 1) required >100% increase in the dose of propofol to achieve the same pharmacological prerequisite sedative endpoint, starting from their third treatment onward; 2) there was a 35% abbreviated duration of the convulsive activity; and 3) there was a 21% shortened interval of time to full wakefulness and coherent communication, starting at the fourth propofol injection.
Conclusions |
Repeated injections of propofol in patients undergoing ECT under deep sedation can induce a tolerance-like reaction to the drug.
Le texte complet de cet article est disponible en PDF.Keywords : Electroconvulsive therapy, propofol, dosage, augmentation
Plan
Vol 16 - N° 4
P. 282-285 - juin 2004 Retour au numéroBienvenue sur EM-consulte, la référence des professionnels de santé.
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