Table 1 Preoperative characteristics according to the patient group
Parameters | Overall cohort | Propensity-matched cohort | ||||||
|---|---|---|---|---|---|---|---|---|
Total (n = 599) | D1 (n = 543) | D2 (n = 56) | P value | Total (n = 112) | D1 (n = 56) | D2(n = 56) | P value | |
Clinical demographics | ||||||||
Age (years) | 56.5 ± 13.6 | 55.3 ± 13.0 | 67.7 ± 14.5 | < 0.001 | 65.3 ± 13.4 | 63.0 ± 11.8 | 67.7 ± 14.5 | 0.060 |
Sex (female, n, %) | 185, 30.9 | 155, 28.5 | 30, 53.6 | < 0.001 | 58, 51.8 | 28, 50.0 | 30, 53.6 | 0.705 |
Hypertension (n, %) | 429, 71.6 | 389, 71.6 | 40, 71.4 | 0.973 | 76, 67.9 | 36, 64.3 | 40, 71.4 | 0.418 |
Diabetes mellitus (n, %) | 39, 6.5 | 35, 6.4 | 4, 7.1 | 0.840 | 8, 7.1 | 4, 7.1 | 4, 7.1 | 0.999 |
Creatinine (mg/dL) | 1.4 ± 1.4 | 1.4 ± 1.5 | 1.4 ± 0.8 | 0.697 | 1.4 ± 1.0 | 1.4 ± 1.1 | 1.4 ± 0.8 | 0.807 |
eGFR (mL/min/1.73 m2) | 68.5 ± 30.3 | 68.6 ± 27.8 | 68.3 ± 48.8 | 0.967 | 64.5 ± 38.5 | 60.6 ± 23.9 | 68.3 ± 48.8 | 0.294 |
ESRD (n, %) | 10, 1.7 | 10, 1.8 | 0 | 0.306 | 1, 0.9 | 1, 1.8 | 0 | 0.315 |
Preoperative condition | ||||||||
SBP (mmHg) | 97.2 ± 18.8 | 98.0 ± 17.8 | 90.1 ± 25.7 | 0.029 | 90.1 ± 22.7 | 90.0 ± 19.5 | 90.1 ± 25.7 | 0.987 |
SBP < 90 mmHg (n, %) | 138, 23.0 | 117, 21.5 | 21, 37.5 | 0.007 | 41, 36.6 | 20, 35.7 | 21, 37.5 | 0.844 |
Intubation (n, %) | 37, 6.2 | 29, 5.3 | 8, 14.3 | 0.008 | 13, 11.6 | 5, 8.9 | 8, 14.3 | 0.376 |
Time from ED to OR (h) | 5.2 ± 4.5 | 5.1 ± 3.8 | 6.2 ± 9.2 | 0.369 | 5.8 ± 6.6 | 5.4 ± 1.7 | 6.2 ± 9.2 | 0.497 |
Repeat surgery (n, %) | 21, 3.5 | 19, 3.5 | 2, 3.6 | 0.978 | 8, 7.1 | 6, 10.7 | 2, 3.6 | 0.142 |
Clinical presentation | ||||||||
Chest/back pain (n, %) | 446, 74.5 | 409, 75.3 | 37, 66.1 | 0.131 | 78, 69.6 | 41, 73.2 | 37, 66.1 | 0.411 |
Aortic regurgitation > moderate (n, %) | 85, 14.2 | 77, 14.2 | 8, 14.3 | 0.983 | 22, 19.6 | 14, 25.0 | 8, 14.3 | 0.154 |
Hemopericardium (n, %) | 198, 33.1 | 161, 29.7 | 37, 66.1 | < 0.001 | 70, 62.5 | 33, 58.9 | 37, 66.1 | 0.435 |
Cardiac tamponade (n, %) | 74, 12.4 | 57, 10.5 | 17, 30.4 | < 0.001 | 30, 26.8 | 13, 23.2 | 17, 30.4 | 0.393 |
Acute myocardial infarction (n, %) | 13, 2.2 | 10, 1.8 | 3, 5.4 | 0.086 | 4, 3.6 | 1, 1.8 | 3, 5.4 | 0.309 |
Malperfusiona (n, %) | 96, 16.0 | 93, 17.1 | 3, 5.4 | 0.022 | 6, 5.4 | 3, 5.4 | 3, 5.4 | 0.999 |
Intramural hematoma (n, %) | 122, 18.7 | 101, 18.6 | 11, 19.6 | 0.849 | 18, 16.1 | 7, 12.5 | 11, 19.6 | 0.303 |