• Walmir Romanini, Andrea Pires Muller, Katherine Athayde Teixeira de Carvalho, Marcia Olandoski, José Rocha Faria-Neto, Felipe Luiz Mendes, Evandro Antonio Sardetto, Francisco Diniz Afonso da Costa, and Luiz César Guarita-Souza.
• Pontifícia Universidade Católica do Paraná, Curitiba, PR, Brasil.
• Arq. Bras. Cardiol. 2007 Aug 1; 89 (2): 94-9, 105-10.

BackgroundPulmonary complications are important causes of morbidity and fatalities among patients subject to cardiac surgery. The respiratory physiotherapy has been aiding in the recovery of these patient ones.ObjectiveTo evaluate the physiotherapeutic effect of intermittent positive pressure breathing (IPPB) and incentive spirometry (IS) in patients submitted to myocardial revascularization surgery.MethodsForty patients were divided in two groups: one was submitted to IPPB (n=20) and the other to IS (n=20). The patients were evaluated at the preoperative period and 24, 48 and 72 hours postoperatively, with the resources being applied in the postoperative period. The following parameters were analyzed: oxygen saturation (SpO2), respiratory frequency (RF), minute volume (MV), current volume (CV), maximum inspiratory pressure (Ip max) and maximum expiratory pressure (Ep max).ResultsThe groups were considered homogeneous regarding the demographic and clinical variables. In the group submitted to IPPB, an increase in SpO2 was observed 48 (p=0.007) and 72 h (p=0.0001) after surgery, when compared to the IS group. As for the RF, MV and CV variables, there were no statistically significant differences between the groups. The group submitted to IS showed a significant increase in the Epmax 24 (p=0.02) and 48 (p=0.01) h after surgery.ConclusionAiming at reversing hypoxemia earlier, IPPB showed to be more efficient when compared to IS; however, IS was more effective in improving respiratory muscle strength.

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