Table 1.
Baseline characteristics of mitral surgery recipients with moderate tricuspid regurgitation
| Variable | Overall (N = 210) | No TV operation (N = 143) | Concomitant TV operation (N = 67) | P value |
|---|---|---|---|---|
| Age median (IQR) | 70 (62-78) | 69 (63-78) | 73 (61-78) | .866 |
| Female sex, n (%) | 123 (58.6) | 89 (62.2) | 34 (50.8) | .115 |
| BMI, kg/m2, median (IQR) | 26.4 (23.4-29.6) | 26.2 (23.5-30.1) | 26.4 (22.7-29.4) | .734 |
| Race, n (%) | .723 | |||
| White | 165 (78.6) | 113 (79.0) | 52 (77.6) | |
| Black | 28 (13.3) | 18 (12.6) | 10 (14.9) | |
| Mitral etiology, n (%) | .103 | |||
| Degenerative | 114 (54.3) | 71 (49.7) | 43 (64.2) | |
| Failed repair or replacement | 40 (19.1) | 29 (20.3) | 11 (16.4) | |
| Rheumatic | 21 (10.0) | 15 (10.5) | 6 (9.0) | |
| Ischemic | 16 (7.6) | 14 (9.8) | 2 (3.0) | |
| Mitral regurgitation, n (%) | ||||
| ≥Moderate | 182 (86.7) | 124 (86.7) | 58 (86.6) | .977 |
| Severe | 116 (55.2) | 83 (58.0) | 33 (49.3) | .233 |
| Mitral stenosis, n (%) | 59 (28.1) | 42 (29.4) | 17 (25.4) | .548 |
| Tricuspid etiology | .130 | |||
| Functional | 182 (86.7) | 127 (88.8) | 55 (82.1) | |
| Rheumatic | 11 (5.2) | 5 (3.5) | 6 (9.0) | |
| Failed repair or replacement | 6 (2.9) | 4 (2.8) | 2 (3.0) | |
| LVEF, %, median (IQR) | 59.0 (48.0-65.0) | 60.0 (47.5-65.0) | 58.0 (50.0-65.0) | .900 |
| PASP, mm Hg, median (IQR) | 51.5 (42.0-65.0) | 52.0 (43.0-66.0) | 51.0 (41.0-59.5) | .189 |
| NYHA class III or IV, n (%) | 141 (67.8) | 100 (70.9) | 41 (61.2) | .161 |
| Comorbidities, n (%) | ||||
| Hypertension | 162 (77.4) | 112 (78.3) | 50 (74.6) | .552 |
| Atrial fibrillation | 137 (65.2) | 94 (65.7) | 43 (64.2) | .825 |
| Chronic lung disease | 47 (22.4) | 30 (21.0) | 17 (25.4) | .476 |
| Diabetes | 47 (22.4) | 29 (20.3) | 18 (26.9) | .286 |
| Dialysis | 12 (5.7) | 5 (3.5) | 7 (10.5) | .043 |
| Prior cardiac intervention | 115 (54.8) | 82 (57.3) | 33 (49.3) | .272 |
| Prior mitral surgery | 40 (19.1) | 29 (20.3) | 11 (16.4) | .507 |
| Prior TV surgery | 6 (2.9) | 4 (2.8) | 2 (3.0) | .939 |
| Prior CABG | 19 (9.1) | 15 (10.5) | 4 (6.0) | .287 |
| Prior PCI | 40 (19.1) | 30 (20.1) | 10 (14.9) | .298 |
| Prior PPM | 35 (16.7) | 25 (17.5) | 10 (14.9) | .643 |
| Laboratory values, median (IQR) | ||||
| Creatinine, mg/dL | 1.0 (0.8-1.3) | 1.0 (0.8-1.2) | 1.0 (0.8-1.3) | .519 |
| WBC count, 109/L | 6.9 (5.8-8.7) | 7.0 (6.0-8.6) | 6.6 (5.6-8.7) | .444 |
| Hematocrit, % | 38.0 (33.0-41.0) | 38.0 (34.0-41.0) | 37.0 (32.0-40.0) | .126 |
Bold type denotes P < .05. TV, Tricuspid valve; IQR, interquartile range; BMI, body mass index; LVEF, left ventricular ejection fraction; PASP, pulmonary artery systolic pressure; NYHA, New York Heart Association; CABG, coronary artery bypass graft; PCI, percutaneous coronary intervention; PPM, permanent pacemaker placement; WBC, white blood cell.