Table 1. Preoperative characteristics of patients with NIV intolerance.
| Variables | Overall (n=90) | REM (n=52) | DEX (n=38) | P value |
|---|---|---|---|---|
| Age, y | 65 (54, 73) | 65 (56, 73) | 67 (53, 73) | 0.529 |
| Male sex, n (%) | 61 (67.8) | 33 (63.5) | 28 (73.7) | 0.365 |
| Height, cm | 166±9 | 166±11 | 167±7 | 0.587 |
| Weight, kg | 67±14 | 65±14 | 69±13 | 0.189 |
| BMI, kg/m2 | 24±4 | 24±4 | 25±4 | 0.202 |
| Diagnosis, n (%) | 0.36 | |||
| Valve only | 43 (47.8) | 24 (46.2) | 19 (50.0) | |
| CAD only | 13 (14.4) | 8 (15.4) | 5 (13.2) | |
| Valve and CAD | 13 (14.4) | 9 (17.3) | 4 (10.5) | |
| Great vessel | 12 (13.3) | 4 (7.7) | 8 (21.1) | |
| Congenital | 3 (3.3) | 2 (3.9) | 1 (2.6) | |
| Others | 6 (6.7) | 5 (9.6) | 1 (2.6) | |
| Comorbidities, n (%) | ||||
| Hypertension | 41 (45.6) | 22 (42.3) | 19 (50.0) | 0.524 |
| Diabetes mellitus | 16 (17.8) | 8 (15.4) | 8 (21.1) | 0.58 |
| COPD | 1 (1.1) | 0 (0) | 1 (2.6) | 0.239 |
| Asthma | 1 (1.1) | 1 (1.9) | 0 (0) | 0.39 |
| CKD | 5 (5.6) | 2 (3.9) | 3 (7.9) | 0.408 |
| Smoke, n (%) | 18 (20) | 13 (25) | 5 (13.2) | 0.165 |
| NT-pro BNP, pg/mL | 780 (221, 1,886) | 920 (233, 1,545) | 554 (199, 2,399) | 0.728 |
| LVEF, % | 62 (58, 66) | 62 (60, 55) | 62 (54, 67) | 0.987 |
Continuous data are presented as the mean (SD) or median (IQR). Categorical data are presented as counts (%). BMI, body mass index; CAD, coronary artery disease; COPD, chronic obstructive pulmonary disease; CKD, chronic kidney disease; NT-pro BNT, N terminal pro B type natriuretic peptide; LVEF, left ventricular ejection fraction.