Table 2.
Procedural Specifics
| Variable | Acute Arterial Mesenteric Ischemia | ||
|---|---|---|---|
|
| |||
| All (n = 142) | Embolic (n = 71) | Thrombotic (n = 71) | |
| Emergency operation | 97 (68.3) | 63 (88.7) | 34 (47.9) |
| American Society of Anesthesiologists class | |||
| 1 = no disturb | 0 | 0 | 0 |
| 2 = mild disturb | 8 (5.6) | 2 (2.8) | 6 (8.5) |
| 3 = severe disturb | 54 (38.0) | 21 (29.6) | 33 (46.5) |
| 4 = life-threatening | 71 (50.0) | 40 (56.3) | 31 (43.7) |
| 5 = moribund | 9 (6.3) | 8 (11.3) | 1 (1.4) |
| Surgeon specialty | |||
| Vascular surgeon | 96 (67.6) | 42 (59.2) | 54 (76.1) |
| General surgeon | 46 (32.4) | 29 (40.9) | 17 (23.9) |
| Resident involved | 112 (78.9) | 62 (87.3) | 50 (70.4) |
| Postgraduate year class of resident assistance* | |||
| 1 | 5 (4.6) | 1 (1.7) | 4 (8.3) |
| 2 | 5 (4.6) | 4 (6.7) | 1 (2.1) |
| 3 | 13 (12.0) | 8 (13.3) | 5 (10.4) |
| 4 | 25 (23.2) | 15 (25.0) | 10 (20.8) |
| 5 | 29 (26.9) | 17 (28.3) | 12 (25.0) |
| 6 | 16 (14.8) | 10 (16.7) | 6 (12.5) |
| 7 | 14 (13.0) | 5 (8.3) | 9 (18.8) |
| 8 | 0 | 0 | 0 |
| 9 | 1 (0.9) | 0 | 1 (2.1) |
| 10 | 0 | 0 | 0 |
| Anesthesia type | |||
| General | 141 (99.3) | 70 (98.6) | 71 (100.0) |
| Regional | 0 | 0 | 0 |
| Local | 0 | 0 | 0 |
| Other | 1 (0.7) | 1 (1.4) | 0 |
| Units transfused (red cells) | 1.2 ± 1.8 | 0.8 ± 1.3 | 1.6 ± 2.2 |
| Operative time (minutes) | 203.7 ± 92.5 | 149.5 ± 60.7 | 257.9 ± 87.2 |
| Revascularization type | |||
| Embolectomy | 71 (50.0) | 71 (100.0) | 0 |
| Extra-anatomic bypass | 0 | 0 | 0 |
| Endarterectomy | 16 (11.3) | 0 | 16 (22.5) |
| Bypass (all) | 55 (38.7) | 0 | 55 (77.5) |
| With vein | 17 (12.0) | 0 | 17 (23.9) |
| With prosthetic | 38 (26.8) | 0 | 38 (53.5) |
| Days from hospital admission to operation | 1.8 ± 2.9 | 1.1 ± 1.7 | 2.5 ± 3.6 |
| Bowel resection | 48 (33.8) | 33 (46.5) | 15 (21.1) |
| Total work relative value units | 52.5 ± 23.2 | 49.8 ± 21.5 | 55.1 ± 24.6 |
*
Where resident involved.