• F Chung, V W Chan, and D Ong.
• Department of Anaesthesia, Toronto Western Division, Toronto Hospital, Canada.
• J Clin Anesth. 1995 Sep 1; 7 (6): 500-6.

Study ObjectiveTo evaluate the validity and reliability of an objective scoring system, the Post-Anesthetic Discharge Scoring System (PADSS), which was compared against existing Clinical Discharge Criteria in the ambulatory surgery unit of our hospital.Designrandomized, open study.SettingAmbulatory surgery unit at a university teaching hospital.Patients247 ambulatory surgery patients undergoing general anesthesia.InterventionsOne hour after the operation, the initial assessment using PADSS and the Clinical Discharge Criteria was made by an independent observer. Evaluations were repeated at 30-minute intervals until patients obtained a Post-Anesthetic Discharge Score of at least 9 and fulfilled the Clinical Discharge Criteria.Measurements And Main ResultsThere was a close correlation between the end of anesthesia to time patients were fit for discharge using either PADSS or the Clinical Discharge Criteria (Pearson's Correlation Coefficient r = 0.89). The internal consistency reliability of PADSS (alpha = 0.65) was superior to that of the Clinical Discharge Criteria (alpha = 0.14).ConclusionsWe have found PADSS to have superior measurement scaling and diagnostic properties.

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