Background
Methods
Patients
Operative methods
Group A (n = 95) | Group B (n = 60) | |||
---|---|---|---|---|
Case | Occlusion (3 months post-operation) | Case | Occlusion (3 months post-operation) | |
LIMA | ||||
LIMA-OM | 51 | 1 | 41 | – |
LIMA-D | 32 | – | 12 | – |
LIMA-LAD | 12 | – | 7 | – |
RIMA | ||||
RIMA-LAD | 77 | 1 | 52 | 1 |
RIMA-OM | 11 | – | 7 | – |
RIMA-RCA | 7 | – | 1 | – |
Postoperative medication treatment
Data collection and processing
Statistical analysis
Results
Characteristics of the study population
Group A (n = 95) | Group B (n = 60) | P value | |
---|---|---|---|
Female sex | 13 (13.7%) | 13 (21.7%) | 0.195 |
Mean age ± SD, y | 52.08 ± 6.103 | 63.10 ± 3.112 | < 0.01 |
BMI (kg/m2) | 26.12 ± 3.065 | 25.96 ± 2.656 | 0.745 |
Diabetes | 28 (29.5%) | 33 (55.0%) | 0.002 |
Hypertension | 55 (57.9%) | 42 (70.0%) | 0.129 |
Hyperlipidaemia | 64 (67.4%) | 36 (60.0%) | 0.350 |
Previous myocardial infraction | 35 (36.8%) | 19 (31.7%) | 0.510 |
Serum creatinine (μmol/L) | 80.15 ± 13.40 | 82.31 ± 16.83 | 0.379 |
LVEDD (mm) | 42.19 ± 4.879 | 48.88 ± 5.717 | 0.787 |
LVEF (%) | 60.79 ± 5.630 | 60.77 ± 7.249 | 0.983 |
Cardiac function (NYHA) | 0.188 | ||
I | 20 | 9 | – |
II | 65 | 41 | – |
III | 10 | 10 | – |
Peripheral artery stenosis | 15 (15.8%) | 20 (33.3%) | 0.011 |
Preoperative HbA1c(%) | 6.15 ± 0.54 | 6.19 ± 0.51 | 0.673 |
Intra-operative data
Group A | Group B | P value | |
---|---|---|---|
Operation time (h) | 4.95 ± 0.622 | 4.92 ± 0.535 | 0.758 |
Aortic clamp time (min) | 77.03 ± 18.135 | 77.47 ± 21.913 | 0.894 |
CPB time (min) | 106.46 ± 23.573 | 107.88 ± 26.314 | 0.727 |
Number of distal coronary anastomosis | 4.28 ± 0.821 | 4.27 ± 0.800 | 0.896 |
LIMA | |||
Flow (ml/min) | 28.63 ± 13.475 | 28.25 ± 12.060 | 0.858 |
PI value | 2.25 ± 0.459 | 2.18 ± 0.510 | 0.356 |
RIMA | |||
Flow (ml/min) | 30.12 ± 13.079 | 26.80 ± 9.359 | 0.900 |
PI value | 2.14 ± 0.475 | 2.16 ± 0.612 | 0.831 |
Short-term complications
Group A (n = 95) | Group B (n = 60) | P value | |
---|---|---|---|
Bleeding requiring re-exploration | 1 | 0 | 0.425 |
Drainage volume on the day of operation (ml) | 512.53 ± 246.71 | 493.67 ± 216.96 | 0.628 |
Chylothorax | 3 | 4 | 0.306 |
Death | 0 | 0 | – |
Sternal wound complication | |||
Mild | 2 | 3 | 0.320 |
Severe | 0 | 1 | 0.207 |
Patency of graft (3 months after operation) | |||
Venous graft occlusion | 3 | 2 | 0.952 |
Arterial graft occlusion | 2 | 1 | 0.847 |
Repeated CABG | 0 | 0 | – |
Echocardiography characteristics (3-month after operation) | |||
LVEF (%) | 60.60 ± 5.320 | 59.17 ± 5.901 | 0.119 |
LVEDD (mm) | 46.62 ± 5.147 | 45.97 ± 4.902 | 0.434 |