Research Article
Ascending Aorta Diameter Changes after Aortic Valve Replacement in Elderly Patients with Aortic Valve Stenosis
| | | Total (n = 87) | Group A (n = 28) | Group B (n = 59) | |
| | Age (year) | 69.9 ± 3.4 | 69.7 ± 3.0 | 69.9 ± 3.6 | 0.75 | | Sex (female) | 39 (44.8%) | 17 (60.7%) | 22 (37.3%) | 0.04 | | Height (cm) | 163.2 ± 8.3 | 161.1 ± 9.5 | 164.0 ± 7.6 | 0.13 | | Weight (kg) | 63.5 ± 11.1 | 61.5 ± 12.0 | 64.5 ± 10.6 | 0.24 | | BSA (m2) | 1.66 ± 0.2 | 1.62 ± 0.2 | 1.67 ± 0.2 | 0.21 | | Hypertension | 40 (46%) | 9 (32.1%) | 31 (52.5%) | 0.08 | | Diabetes | 10 (11.5%) | 1 (3.6%) | 9 (15.3%) | 0.11 | | Smoke | 54 (62%) | 27 (96.4%) | 57 (96.6%) | 0.96 | | Hyperlipidemia | 39 (44.8%) | 14 (50%) | 25 (42.4%) | 0.51 | | COPD | 1 (2.2%) | 0 | 1 (1.7%) | 0.02 | | Cerebrovascular disease | 1 (1.1%) | 1 (3.6%) | 0 | 0.15 | | Atrial fibrillation | 8 (9.2%) | 3 (10.7%) | 5 (8.5%) | 0.74 | | Coronary artery disease | 24 (27.6%) | 6 (21.4%) | 18 (30.5%) | 0.37 | | NYHA (≧3) | 43 (49.4%) | 13 (46.5%) | 30 (50.9%) | 0.67 | | Moderate and severe aortic regurgitation | 32 (36.8%) | 12 (42.9%) | 20 (33.9%) | 0.42 | | Presence of BAV | 39 (44.8%) | 15 (53.6%) | 24 (40.7%) | 0.26 | | Echocardiography | | Ejection fraction (%) | 60.1 ± 8.3 | 58.9 ± 8.0 | 60.7 ± 8.4 | 0.34 | | Left ventricular diameter (mm) | 51.1 ± 8.1 | 54,6 ± 8.7 | 49.5 ± 7.2 | 0.006 | | Peak velocity (m/s) | 4.7 ± 0.8 | 4.8 ± 0.8 | 4.6 ± 0.8 | 0.44 | | Mean gradient (mmHg) | 55.9 ± 19.6 | 57.8 ± 20.1 | 54.9 ± 19.5 | 0.54 | | Ascending aorta (mm) | 37.0 ± 5.9 | 43.4 ± 3.8 | 34.0 ± 3.9 | <0.01 | | <40 | 59 (67.8%) | 4 (14.3%) | 55 (93.2%) | | | 40–50 | 27 (31.1%) | 23 (82.1%) | 4 (6.8%) | | | >50 | 1 (1.1%) | 1 (3.6%) | 0 | | | AHI (cm/m) | 2.27 ± 0.37 | 2.69 ± 0.21 | 2.07 ± 0.23 | <0.01 | | Prosthetic valve | | Bioprosthetic | 68 (78.2%) | 22 (78.6%) | 46 (78%) | 0.95 | | Mechanical | 19 (21.8%) | 6 (21.4%) | 13 (22%) | 0.95 | | Prosthetic valve size (mm) | 21.7 ± 1.8 | 21.8 ± 1.6 | 21.6 ± 1.9 | 0.76 | | Concomitant procedure | | CAGB | 24 (27.6%) | 6 (21.4%) | 18 (30.5%) | 0.37 | | Mitral valve | 15 (17.2%) | 6 (21.4%) | 9 (15.3%) | 0.48 | | Tricuspid valve | 13 (14.9%) | 6 (21.4%) | 7 (11.9%) | 0.29 | | Maze | 1 (1.1%) | 0 | 1 (1.7%) | 0.49 | | Cardiopulmonary bypass time (min) | 117.0 ± 50.4 | 118.1 ± 62.3 | 116.5 ± 44.5 | 0.90 | | Clamp time (min) | 90.2 ± 40.7 | 87.4 ± 44.1 | 91.4 ± 39.4 | 0.67 | | Follow-up (year) | 4.0 ± 1.3 | 4.0 ± 1.3 | 4.1 ± 1.3 | 0.72 |
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BSA, body surface area; COPD, chronic obstructive pulmonary disease; NYHA, New York heart association. BAV, bicuspid aortic valve; AHI, aortic height index; and CABG, coronary artery bypass grafting.
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