الفهرس 
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Abstract
Exercise testing is a reliable additional method to role pulmonary assessment prior to surgery of Thoracotomy patients. Supporting significant evidence is missing about routine and usual implementation of these simple tests in the field of preoperative evaluation.
Aim: To test the feasibility of preoperative six-minute walk test for predicting postoperative pulmonary complications of Thoracotomy.
METHODS: Between November 2018 and October 2019, 36 patients with an indication for thoracotomy underwent their surgery. Demographic data were collected, spirometry ,6MWT were performed 1 day before thoracotomy, Total walking distance, oxygen saturation decline, heart rate recovery, dyspnea grade, degree of BP change, postoperative length of stay in hospital were all evaluated, then detection and follow up of postoperative pulmonary complication was done.
RESULTS: out of 36 cases studied 21 were males and 15 females with a mean age of 42 years. All surgeries were done by just 2 surgeons. A 6MWD of 500 m and 100% of the predicted 6MWD were taken as threshold values to classify studied patients into (group A) whom walked ≤ 500m. and who achieved ≤ 100% of predicted 6MWD and (group B) whom walked >500m. and who achieved >100% of predicted 6MWD .with an increased risk of postoperative complications in group A than group B [26.3% vs 0 %, P-value 0.023] showing significant difference between the 2 groups regarding the post-operative pulmonary complication . group A showed 5 patients (26.3%) had post-operative pulmonary complications, 1 patient had post-operative aspiration and edema, 2 patient had post-operative empyema, 1 patient had post-operative RF, mechanical ventilation & died, 1 patient had post-operative hemorrhage.
CONCLUSION: Patients who walked less than 500 m during the 6MWT before thoracotomy have an increased risk of postoperative pulmonary complications.