Table 2 Intra−/postoperative characteristics of study participants stratified by BMI
From: The effects of body mass index on outcomes for patients undergoing surgical aortic valve replacement
Independent Variables | BMI < 20 (N = 108) | BMI 20–24.9 (N = 972) | BMI 25–29.9 (N = 1721) | BMI 30–34.9 (N = 1199) | BMI ≥ 35 (N = 780) | P value |
|---|---|---|---|---|---|---|
Isolated AVR (%) | 32(29.6) | 286(29.4) | 506(29.4) | 373(31.1) | 280(35.9) | 0.017 |
AVR + CABG (%) | 30(27.8) | 326(33.5) | 628(36.5) | 446(37.2) | 221(28.3) | < 0.001 |
AVR + MVR(%) | 11(10.2) | 83(8.5) | 101(5.9) | 38(3.2) | 39(5.0) | < 0.001 |
AVR + TV repair (%) | 8(7.4) | 56(5.8) | 54(3.1) | 28(2.3) | 29(3.7) | < 0.001 |
Valvular type | 0.370 | |||||
Mechanical Valve (%) | 19(17.6) | 133(13.7) | 224(13.0) | 141(11.8) | 106(13.6) | |
Bioprosthetic Valve (%) | 89(82.4) | 839(86.3) | 1497(87.0) | 1058(88.2) | 674(86.4) | |
Clamp time (min) | 124.4 ± 58.8 | 119.9 ± 50.4 | 117.8 ± 50.5 | 117.1 ± 47.5 | 117.4 ± 50.3 | 0.522 |
Pump time (min) | 164.0 ± 80.1 | 151.9 ± 59.8 | 150.0 ± 59.3 | 150.2 ± 59.1 | 150.0 ± 63.4 | 0.237 |
Postoperative characteristics | ||||||
Hemorrhage (%) | 8(7.4) | 31(3.2) | 32(1.9) | 17(1.4) | 17(2.2) | < 0.001 |
Infection | ||||||
Septic Infection (%) | 5(4.6) | 22(2.3) | 24(1.4) | 12(1.0) | 20(2.6) | 0.005 |
Superficial sternal wound infection | 3(2.8) | 7(0.7) | 32(1.9) | 30(2.5) | 30(3.8) | < 0.001 |
Sternal wound cellulitis | 0(0.0) | 0(0.0) | 1(0.1) | 0(0.0) | 0(0.0) | 0.777 |
Deep Sternal Infection (%) | 1(0.9) | 5(0.5) | 3(0.2) | 1(0.1) | 7(0.9) | 0.016 |
Sternal wound dehiscence (sterile) | 0(0.0) | 0(0.0) | 1(0.1) | 1(0.1) | 0(0.0) | 0.847 |
Ventilator (days) | 1.3 ± 2.2 | 1.3 ± 12.4 | 1.1 ± 11.2 | 1.2 ± 11.4 | 1.2 ± 4.8 | 0.999 |
CVICU (days) | 4.7 ± 6.8 | 3.9 ± 10.2 | 3.4 ± 8.0 | 3.4 ± 4.8 | 4.2 ± 6.8 | 0.055 |