Variable | Number (%)/median (IQR) | |||
---|---|---|---|---|
Total (n=77) | OPD (n=57) | LPD (n=20) | P value | |
Preoperative information | ||||
Age, years | 60.7 (54.1-67.2) | 59.7 (53.5-67.5) | 61.4 (57.4-65.4) | 0.763 |
Gender, male | 36 (46.8) | 27 (47.4) | 9 (45.0) | 0.855 |
Body mass index, kg/m2 | 21.9 (20.3-23.4) | 21.3 (20.2-23.0) | 22.0 (20.6-23.6) | 0.387 |
Diabetes mellitus, yes | 20 (26.0) | 14 (24.6) | 6 (30.0) | 0.633 |
Hypertension, yes | 17 (22.1) | 12 (21.1) | 5 (25.0) | 0.714 |
Biliary drainage | Â | Â | Â | - |
 Percutaneous transhepatic cholangial drainage | 24 (31.2) | 13 (22.8) | 11 (55.0) |  |
 Endoscopic retrograde biliary drainage | 6 (7.8) | 4 (7.0) | 2 (10.0) |  |
 No obstructive jaundice | 47 (61.0) | 40 (70.2) | 7 (35.0) |  |
White blood cell, 10^9/L | 6.0 (5.0-7.7) | 6.0 (4.8-6.9) | 7.2 (5.6-8.3) | 0.017 |
Hemoglobin, g/L | 117.0 (112.0-125.0) | 117.0 (112.0-127.0) | 116.5 (111.0-123.5) | 0.659 |
Alanine aminotransferase, U/L | 21.5 (14.1-39.4) | 21.5 (13.6-43.7) | 23.2 (16.5-33.8) | 0.776 |
Albumin, g/L | 43.4 (40.1-45.6) | 43.5 (40.6-45.6) | 42.0 (38.9-44.3) | 0.106 |
Total bilirubin, μmol/L | 8.4 (6.2-12.4) | 8.1 (5.8-11.8) | 10.3 (7.1-18.4) | 0.158 |
Prothrombin time, seconds | 12.2 (11.5-13.2) | 12.2 (11.5-13.2) | 12.5 (11.6-13.3) | 0.630 |
Serum creatinine, μmol/L | 58.0 (49.0-68.0) | 61.0 (51.0-70.0) | 51.5 (44.5-57.5) | 0.017 |
Surgical information | ||||
ASA grade | Â | Â | Â | 0.947 |
 Grade I | 8 (10.4) | 6 (10.5) | 2 (10.0) |  |
 Grade II | 69 (89.6) | 51 (89.5) | 18 (90.0) |  |
Pancreatic duct diameter, mm | 3.6 (2.2-5.3) | 3.4 (2.2-5.5) | 3.8 (2.8-4.7) | 0.650 |
Operation time, minutes | 350 (302-415) | 325 (295-378) | 419 (375-468) | <0.001 |
Blood loss, mL | 300 (200-600) | 300 (200-600) | 300 (200-500) | 0.393 |
Transfusion, yes | 28 (36.4) | 21 (36.8) | 7 (35.0) | 0.883 |
Superior mesenteric vein / Portal vein resection, yes | 32 (41.6) | 25 (43.9) | 7 (35.0) | 0.489 |
Type of venous resectiona | Â | Â | Â | - |
 Partial venous excision with direct closure by suture closure | 1 (1.3) | 0 (0.0) | 1 (5.0) |  |
 Partial venous excision using a patch | 2 (2.6) | 1 (1.8) | 1 (5.0) |  |
 Segmental resection with primary venovenous anastomosis | 18 (23.4) | 14 (24.6) | 4 (20.0) |  |
 Segmental resection with interposed venous conduit and at least two anastomoses | 11 (14.3) | 10 (17.5) | 1 (5.0) |  |