TY - JOUR T1 - Assessment of Arterial Oxygen Saturation by Pulse Oximetry Before, During and After Electroconvulsive Therapy TT - بررسی تغییرات اشباع اکسیژن شریانی به وسیله دستگاه پالس‌اکسیمتری قبل، حین و بعد از تشنج درمانی الکتریکی JF - yums-armaghan JO - yums-armaghan VL - 11 IS - 2 UR - http://armaghanj.yums.ac.ir/article-1-733-en.html Y1 - 2006 SP - 93 EP - 101 KW - Arterial oxygen saturation (Sao2%) KW - Electroconvulsive therapy (ECT) KW - Pulse Oximetry N2 - Introduction & Objective: Electroconvulsive therapy (ECT) is used widely in psychiatric practice. The goal of anesthesia for ECT is the prevention of complications such as discomfort, fractures, aspiration of gastric contents and hypoxia. However, general anesthesia can cause some adverse effects as hypoxia. Prevention and treatment of hypoxia is important due to its undesirable effects on seizure duration and cardiovascular system. This study was designed to detect the incidence and probable times of desaturation in patients receiving ECT. Materials & Methods: This prospective randomized clinical trial was carried out on 100 patients (18-50 y/o) with ASA I or II who were scheduled for ECT. After pre-oxygenation and similar anesthesia induction the patients received ECT. The patients were ventilated by oxygen and face masked until the return of their spontaneous respiration with adequate tidal volume and respiratory rate. Then they were transferred to recovery room where there was no oxygen supplementation. Oxygen saturation was measured by a Nell core pulse oximeter and was recorded at six stages: before and after anesthesia induction, during ECT, after ECT, 5 minutes after entering recovery room and before leaving there. The data were analyzed by standard statistical tests using SPSS software Results: Data analysis revealed that desaturation was not noticed at any stage except for the 5th stage (5 minutes after entering recovery room), when 13% of patients developed Sao2% less than 90%. Also there was a significant difference between Sao2% of patients between this stage (5th) and other stages (p M3 ER -