1. Relationship between pre-extubation positive endexpiratory pressure and oxygenation after coronary artery bypass grafting
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Reijane Oliveira Lima, Daniel Lago Borges, Marina de Albuquerque Gonçalves Costa, Thiago Eduardo Pereira Baldez, Mayara Gabrielle Barbosa e Silva, Felipe André Silva Sousa, Milena de Oliveira Soares, and Jivago Gentil Moreira Pinto
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Oxigenação ,Respiração por Pressão Positiva Intrínseca ,Ponte de Artéria Coronária ,Surgery ,RD1-811 ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
Abstract Introduction After removal of endotracheal tube and artificial ventilation, ventilatory support should be continued, offering oxygen supply to ensure an arterial oxygen saturation close to physiological. Objective: The aim of this study was to investigate the effects of positive-end expiratory pressure before extubation on the oxygenation indices of patients undergoing coronary artery bypass grafting. Methods: A randomized clinical trial with seventy-eight patients undergoing coronary artery bypass grafting divided into three groups and ventilated with different positive-end expiratory pressure levels prior to extubation: Group A, 5 cmH2O (n=32); Group B, 8 cmH2O (n=26); and Group C, 10 cmH2O (n=20). Oxygenation index data were obtained from arterial blood gas samples collected at 1, 3, and 6 h after extubation. Patients with chronic pulmonary disease and those who underwent off-pump, emergency, or combined surgeries were excluded. For statistical analysis, we used Shapiro-Wilk, G, Kruskal-Wallis, and analysis of variance tests and set the level of significance at P
- Published
- 2015
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