During the last 3 years, we used maximal stair climbing test on 307 patients for risk stratification before lung resection.2
Fifteen of these patients had a ppoFEV1 < 40% of predicted. Nevertheless, they were submitted to lung resection (one segmentectomy, six lobectomies, eight pneumonectomies) for their good performance at the stair climbing test. Two patients climbed < 12 m, whereas the others climbed > 14 m, corresponding, in our setting, approximately to three and four flights of stairs, respectively. Preoperative maximal oxygen uptake (V̇o2max) did not differ between patients with a ppoFEV1 < 40% and those with a ppoFEV1 ≥ 40% (26 mL/kg/min vs 25.9 mL/kg/min, respectively; p = 0.9). Only three patients acquired postoperative cardiopulmonary complications with no mortality, and the morbidity rate was not different from that of the patients with a ppoFEV1 ≥ 40% (20% vs 17.5%, respectively; p = 0.8). All patients with a ppoFEV1 < 40% were able to perform a postoperative exercise test before discharge, which did not show a different V̇o2max with respect to the patients with a ppoFEV1 ≥ 40% (21.6 mL/kg/min vs 22.5 mL/kg/min, respectively; p = 0.4).