Table 2 Pre-operative clinical risk factors analysis.
Variables | Group A (Pre-Op) (n = 577) | Group B (Intra-Op) (n = 475) | Group C (Post-Op) (n = 62) | Total (n = 1114) | p-value |
|---|---|---|---|---|---|
Angina status – Unstable (%) | 239 (21.45) | 49 (4.39) | 6 (0.54) | 294 (26.4) | < .001S |
Angina class – Canadian cardiovascular society (CCS) | < .001S | ||||
CCS 0 (%) | 294 (51.0) | 298 (62.7) | 35 (56.5) | 627 (56.3) | |
CCS 1 (%) | 83 (14.4) | 72 (15.2) | 12 (19.4) | 167 (15.0) | |
CCS 2 (%) | 92 (15.9) | 67 (14.1) | 10 (16.1) | 169 (15.2) | |
CCS 3 (%) | 62 (10.7) | 24 (5.1) | 4 (6.5) | 90 (8.1) | |
CCS 4 (%) | 46 (8.0) | 14 (2.9) | 1 (1.6) | 61 (5.5) | |
Dyspnoea status – New York Heart Association (NYHA) | 0.353 | ||||
NYHA 0 (%) | 207 (35.9) | 192 (40.4) | 22 (35.5) | 421 (37.8) | |
NYHA 1 (%) | 63 (10.9) | 54 (11.4) | 8 (12.9) | 125 (11.2) | |
NYHA 2 (%) | 181 (31.4) | 145 (30.5) | 23 (37.1) | 349 (31.3) | |
NYHA 3 (%) | 96 (16.6) | 72 (15.2) | 8 (12.9) | 176 (15.8) | |
NYHA 4 (%) | 30 (5.2) | 12 (2.5) | 1 (1.6) | 43 (3.9) | |
Interval Last MI to Surgery – 30 days (%) | 462 (80.1) | 274 (57.7) | 28 (45.2) | 764 (68.6) | < .001S |
Previous PCI – Yes (%) | 136 (23.6) | 80 (16.8) | 15 (24.2) | 231 (20.7) | 0.022S |
Interval PCI to surgery > 6 h – Yes (%) | 91 (15.8) | 77 (16.2) | 13 (21.0) | 180 (16.2) | 0.574 |
Previous cardiovascular intervention – Yes (%) | 6 (1.0) | 16 (3.4) | 2 (3.2) | 24 (2.2) | 0.029S |
Previous open-heart surgery – Yes (%) | 5 (0.9) | 15 (3.2) | 2 (3.2) | 22 (2.0) | 0.022S |
Any previous surgery/intervention – Yes (%) | 571 (99.0) | 460 (96.8) | 60 (96.8) | 1091 (97.9) | 0.045S |
Cardiogenic shock – Yes (%) | 107 (18.5) | 14 (2.9) | 4 (6.5) | 125 (11.2) | < .001S |
IV nitrates/Heparin – Yes (%) | 420 (72.8) | 62 (13.1) | 10 (16.1) | 492 (44.2) | < .001S |
Extent of coronary artery disease | 0.003S | ||||
No coronary artery disease (%) | 22 (3.8) | 39 (8.2) | 8 (12.9) | 69 (6.2) | |
Single vessel disease – SVD (%) | 25 (4.3) | 16 (3.4) | 5 (8.1) | 46 (4.1) | |
Double vessel disease – DVD (%) | 116 (20.1) | 76 (16.0) | 8 (12.9) | 200 (18.0) | |
Tripple vessel disease – TVD (%) | 414 (71.8) | 344 (72.4) | 41 (66.1) | 799 (71.7) | |
Left mainstem disease – Yes (%) | 320 (55.5) | 135 (28.4) | 13 (21.0) | 468 (42.0) | < .001S |
Ejection fraction (EF), mean ± SD* | 41.4 ± 15.5 | 38.9 ± 16.1 | 45.7 ± 16.2 | 40.5 ± 15.7 | 0.001S |
Ejection fraction categories | < .001S | ||||
Fair [30–49%] (%) | 230 (39.9) | 156 (32.8) | 17 (27.4) | 403 (36.2) | |
Good [> 49%] (%) | 209 (36.2) | 162 (34.1) | 32 (51.6) | 403 (36.2) | |
Poor [< 30%] (%) | 138 (23.9) | 157 (33.1) | 13 (21.0) | 308 (27.6) | |
Diastolic dysfunction (%) | 212 (36.7) | 208 (43.8) | 25 (40.3) | 445 (39.9) | 0.067 |
Logistic EUROScore, mean ± SD# | 4.9 ± 7.3 | 3.6 ± 4.8 | 4.0 ± 5.8 | 4.3 ± 6.3 | 0.208 |
