(1) Objectives: The aim of this study is to assess the cognitive function (memory) following electroconvulsive therapy in patients who receive remifentanil as sole agent anesthetic.
(2) Design: This study has been designed as a double blind randomized controlled clinical trial.
(3) Setting and conduct:
In the electroconvulsive therapy ward the informed consents will taken for every patient and the minimental status examination will described to patients. After intravenous access preparation, In drug group, the patients will receive remifentanil 4-8µg/kg, and the succinylcholine 0.5 mg/kg for relaxation. In control group the patients will receive, thiopental with equal volume of that prepare by normal saline. The patients will ventilate by bag and mask with 100% of oxygen till the bi-temporal electrode will insert. The patients will observe in recovery until to fully awake position. Time of seizure and time of awakening will also recorded. All the patients are visited by psychiatrist to evaluate the minimental status examination before and 5 and 24 hours after electroconvulsive therapy.
(4) Participants including major eligibility criteria
This study will perform in 60 patients between 18-60 with major depression, who meet the DSM-TR IV,in shafa hospital,in 2016.This elective electroconvulsive therapy will performed only in 1th session of electroconvulsive therapy. The exclusion criteria in the study is consist of the patients with ASA class IV , mild to moderate cognitive disorder, emergency condition, history of cardiovascular disease, mental retardation and uncontrolled hypertension.
(5) Intervention: In drug group, the patients will receive remifentanil 4-8µg/kg, and the succinylcholine 0.5 mg/kg for relaxation. In control group the patients will receive, thiopental with equal volume of that prepare by normal saline.
(6) Main outcome measures (variables):
The primary outcome: MiniMental Status Examination(MMSE) Scoring.
Secondary outcome: Duration of Seizure, Hemodynamic Parameter, Time of awakening ,nausea , vomiting and pruritis.