[Respiratory function tests and operative risk in thoracic surgery].

In a retrospective study on 145 patients who underwent anesthesia for thoracic surgery, perioperative variables and preoperative pulmonary function tests influencing mortality and morbidity were evaluated. 3 patients (2.07%) died and 6 (4.14%) had cardiac, respiratory and other complications in postoperative 48 hours. Clinical-statistic analysis has shown the perioperative variables predictive on mortality and morbidity and operative risk: the operation type, FEV1, MVV (% theoretical), postexclusion gas analysis, Motley index (TLC/RV), intraoperative PaCO2, muscle-relaxant dose, preoperative myocardial infarction, weight, ASA, abnormal ECG, hypercreatininemia and loss of blood. MVV, FEV1, Motley index and residual FEV1 are the useful preoperative pulmonary function tests for evaluation of operative risk and surgical resection. Evaluation of operative risk in thoracic surgery shows the necessity of preoperative pulmonary function tests.