Table 2.
Venous reconstruction operative and postoperative characteristics
| Variable | All patients (n = 90) | Patent (n = 74) | Thrombosed (n = 16) | P-value |
|---|---|---|---|---|
| Vascular reconstruction type, n (%) | ||||
| LV | 17 (19) | 13 (18) | 4 (25) | 0.001 |
| TV | 9 (10) | 9 (12) | 0 | |
| Patch | 17 (19) | 12 (16) | 5 (31) | |
| IG | 19 (21) | 12 (16) | 7 (44) | |
| Primary | 28 (31) | 28 (38) | 0 | |
| Conduit, n (%) | ||||
| None | 54 (60) | 50 (68) | 4 (25) | 0.007 |
| Autologous | 24 (27) | 16 (22) | 8 (50) | |
| Preserved | 12 (13) | 8 (10) | 4 (25) | |
| Vein resected, n (%) | ||||
| PV | 20 (22) | 17 (23) | 3 (18.75) | 0.715 |
| SMV | 47 (52) | 37 (50) | 10 (62.5) | |
| PV/SMV confluence | 23 (26) | 20 (27) | 3 (18.75) | |
| Operating time, min, median (IQR) | 420 (356–486) | 401 (351–468) | 480 (400–546) | 0.003 |
| Blood loss, ml, median (IQR) | 750 (400–1238) | 600 (400–1200) | 1000 (775–1625) | 0.128 |
| Transfusion, n (%) | 43 (48) | 32 (43) | 11 (69) | 0.096 |
| Shunt/temporary graft, n (%) | 3 (3.3) | 2 (2.7) | 1 (6.25) | 0.448 |
| Length of venous resection, cm, median (IQR) | 2.5 (2–3.75) | 2.5 (2–3.25) | 3 (2.4–4) | 0.203 |
| Anticoagulation type, n (%) | ||||
| Intravenous heparin | 6 (7) | 3 (4) | 3 (19) | 0.066 |
| Coumadina | 4 (4) | 4 (5) | 0 | 1.000 |
| Low molecular weight heparin | 7 (8) | 4 (5) | 3 (19) | 0.103 |
| Aspirin | 63 (70) | 50 (68) | 13 (81) | 0.374 |
| Anticoagulation duration, n (%) | ||||
| ≤3 months | 28 (31) | 25 (34) | 3 (19) | 0.373 |
| >3 months | 36 (40) | 26 (35) | 10 (63) | 0.052 |
| Pancreatic fistula, n (%) | 10 (11) | 7 (9) | 3 (19) | 0.374 |
| Post-operative ICU, n (%) | 65 (72) | 50 (68) | 15 (94) | 0.035 |
| Length of stay, median (IQR) | 11 (9–18) | 10 (9–16) | 18 (11–27) | 0.006 |
a
All four patients on Coumadin were on Coumadin prior to venous reconstruction for other indications.
LV, longitudinal venorrhaphy; TV, transverse venorrhaphy; IG, interposition graft; PV, portal vein; SMV, superior mesenteric vein; IQR, interquartile range; ICU, intensive care unit.