انتخاب بيماران جهت اعمال جراحي ريه بر پايه نتايج آزمون هاي كاركرد ريوي

Patient Selection for Lung Surgery Based on Pulmonary Assessment Tests

Background: Pulmonary function tests before surgery can be used either for assessment of morbidity and mortality after surgery or for estimation of residual lung function after resection. Other useful tests are maximum voluntary ventilation, diffusing capacity of the lung for carbon monoxide, arterial blood gas measurement, perfusion and ventilation scan. The aim of this study was the patient selection method for lung resection in Iran. Materials and Methods: In a prospective study, 26 patients were studied between 1997-1999. For each patient before and 3 months after surgery, pulmonary function tests were performed and the amounts of FEV1, FVC, FEV1/FVC, MVV were determined before and after surgery and their relation with lung resection type, diagnosis of disease and postoperative complications were assessed. Results: Among pulmonary function tests parameters only the percent of preoperative and postoperative FEV1/FVC and FEV1/VC had statistically significant relation with lung resection type, diagnosis of disease, postoperative complications and body mass index. In smokers also the percent of postoperative FEV1/FVC and FEV1/VC increased significantly. Conclusion: According to the results obtained in this study, pulmonary function tests are not useful for patient selection for lung resection and should be used with other lung function assessment test.