Table 5.
Intraoperative Data
| Characteristics | All Patients | POCD | Non-POCD |
|---|---|---|---|
| n | 32 (100%) | 28 (87.5%) | 4 (12.5%) |
| Surgery duration, minutes (median [IQR]) | 120 (95, 134) | 120 (95, 134) | 130 (108, 145) |
| Anesthesia duration, minutes (median [IQR]) | 260 (218, 289) | 245 (202, 280) | 292.5 (273.8, 300.0) |
| CPB duration, minutes (median [IQR]) | 40.5 (34.2, 56.8) | 40.5 (34.2, 54.8) | 47.0 (35.0, 70.2) |
| Cross-clamp duration, minutes (median [IQR]) | 23 (20, 47) | 23 (20, 46) | 30.5 (20.0, 50.8) |
| Patients given direct current shocks | |||
| One shock | 17 (53.1%) | 7 (87.5%) | 1 (25%) |
| Two shocks | 17 (53.1%) | 15 (88.2%) | 2 (11.8%) |
| Three shocks | 2 (6.3%) | 2 (100%) | 0 (0%) |
| Four or more shocks | 2 (6.3%) | 2 (100%) | 0 (0%) |
| Indication for direct current shock | |||
| Ventricular fibrillation | 24 (75%) | 22 (91.7%) | 2 (8.3%) |
| Ventricular tachycardia | 2 (6.3%) | 2 (100%) | 0 (0%) |
| Atrial fibrillation | 2 (6.3%) | 1 (50%) | 1 (50%) |
| Bleeding volume, mL (median [IQR]) | 350 (300, 365) | 350 (300, 378) | 300 (300, 338) |
| Temperature during CPB, °C (median [IQR]) | 32.5 (31.5, 33.8) | 32.2 (31.5, 33.5) | 33.5 (31.9, 34.6) |
| Temperature during rewarming after CPB, °C (median [IQR]) | 31.75 (31.5, 32.2) | 31.75 (31.42, 32.2) | 31.85 (31.55, 34.32) |
| Nasopharynx temperature during rewarming after CPB, °C (median [IQR]) | 32.95 (31.52, 34.08) | 32.95 (31.6, 34.0) | 33.0 (31.25, 35.05) |
| Temperature when CPB was discontinued, °C (median [IQR]) | 36.1 (36.0, 36.2) | 36.1 (36.1, 36.3) | 36.05 (35.4, 36.18) |
Abbreviations: CPB, cardiopulmonary bypass; POCD, postoperative cognitive dysfunction.