Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Wertheim cung cấp cho các bạn kiến thức về ngành y đề tài: Estimation of lung vital capacity before and after coronary artery bypass grafting surgery: a comparison of incentive spirometer and ventilometry. | Pinheiro et al. Journal of Cardiothoracic Surgery 2011 6 70 http content 6 1 70 JCTS JOURNAL OF CARDIOTHORACIC SURGERY RESEARCH ARTICLE Open Access Estimation of lung vital capacity before and after coronary artery bypass grafting surgery a comparison of incentive spirometer and ventilometry Areli Cunha Pinheiro1 Michelli Christina Magalhães Novais1 Mansueto Gomes Neto1 Marcus Vinicius Herbst Rodrigues2 Erenaldo de Souza Rodrigues Junior1 3 4 Roque Aras Junior3 4 and Vitor Oliveira Carvalho2 Abstract Background Measurement of vital capacity VC by spirometry is the most widely used technique for lung function evaluation however this form of assessment is costly and further investigation of other reliable methods at lower cost is necessary. Objective To analyze the correlation between direct vital capacity measured with ventilometer and with incentive inspirometer in patients in pre and post cardiac surgery. Methodology Cross-sectional comparative study with patients undergoing cardiac surgery. Respiratory parameters were evaluated through the measurement of VC performed by ventilometer and inspirometer. To analyze data normality the Kolmogorov-Smirnov test was applied for correlation the Pearson correlation coefficient was used and for comparison of variables in pre and post operative period Student s t test was adopted. We established a level of ignificance of 5 . Data was presented as an average standard deviation and relative frequency when needed. The significance level was set at 5 . Results We studied 52 patients undergoing cardiac surgery 20 patients in preoperative with VC-ventilometer ml kg and VC-inspirometer 11 ml Kg r p . In the post operatory 32 patients were evaluated with VC-ventilometer ml kg and VC-inspirometer 11 ml Kg r p . Presenting a very high correlation between the evaluation forms studied. Conclusion There was a high correlation between DVC measures with .