Maarten van Egmond

29 Preoperative functional status and postoperative complications 2 Table 2. Measurements of preoperative functional status (92 patients) Indicator of functional status MIP (cm H 2 O), mean (SD) 92.2 (30.5) percentage of predicted, mean (SD) 121.5 (40.2) HGS (kilograms), median (IQR) 42.5 (15.0) percentage of predicted, mean (SD) 114.0 (20.8) Physical activities (kcal/day), median (IQR) 855.7 (707.5) HRQL, median(IQR) 83.3 (16.7) MIP, maximal inspiratory pressure; HGS, handgrip strength; HRQL, health-related quality of life, where scores range from 0 to 100 with higher scores indicating a better HRQL. 35 10 15 8 5 10 3 4 No complications Grade I Grade II Grade IIIa Grade IIIb Grade IVa Grade IVb Grade V 0 5 10 15 20 25 30 35 40 Figure 1. Frequency of postoperative complications according to the Clavien-Dindo classification (90 patients) Grade I: Any deviation from the normal postoperative course without pharmacologic treatment or surgical, endoscopic, and radiological interventions; Grade II: Requiring pharmacologic treatment with drugs other than ones allowed for grade I complications; Grade III: Requiring surgical, endoscopic, or radiologic intervention not under general anesthesia (IIIa), under general anesthesia (IIIb); Grade IV: Life-threatening complications requiring IC/ ICU management, single-organ dysfunction (including dialysis) (IVa), multiorgan dysfunction (IVb); Grade V: Death of a patient.