Relation between respiratory muscle strength with respiratory complication on the heart surgery.

OBJECTIVE To check the respiratory muscle strength in cardiac surgery and the relationship with the postoperative pulmonary complications. METHODS Sixty-tree adult's patients undergoing elective cardiac surgery were enrolled in this study. In the day of the surgery all patients did the respiratory muscle strength test. In the postoperative a multidisciplinary team took care all patients and they receive physiotherapy treatment twice a day following the usual care of the hospital. In the fifth day after surgery, the patients repeat the respiratory muscle strength test and were examined postoperative pulmonary complications. RESULTS A significant lower inspiratory muscle strength (P = 0.001) and expiratory muscle strength (P = 0.0001) was found in the postoperative, however it wasn't statistics significantly the relationship between the inspiratory muscle strength (P = 0.58) and expiratory muscle strength (P = 0.4) preoperative with postoperative pulmonary complication. CONCLUSIONS The respiratory strength preoperative couldn't be a predictor of postoperative pulmonary complication.