Results
Pulmonary function tests were normal or mildly reduced in 190 patients
(group 1) and moderately to severely reduced in 176 patients (group 2).
Propensity matching identified 111 matched pairs in each group with
balanced preoperative and operative characteristics. Compared to group
1, Group 2 had longer duration of mechanical ventilation [12 (7.5- 16)
vs. 9 (6.5- 13) hours, p<0.001], higher postoperative
Creatinine [111 (90- 142) vs. 105 (81- 128) µmol/dl, p=0.02] and
higher hospital mortality (6.31% vs 0%, p=0.02).