Table 2.
Surgical and pathologic outcomes of study patients.
| Study patients | Historic control* | ||||
|---|---|---|---|---|---|
| Lap radical (n=12) |
Lap partial (n=8) |
Lap radical (n=55) |
Lap partial (n=97) |
||
| Surgical | Operative time (min) | 252 (159-376) | 211 (170-275) | 222 (100-605) | 197 (95-316) |
| Parameters | EBL (ml) | 430 (20-1400) | 384 (100-700) | 464 (5-7000) | 258 |
| No. patients transfused | 0 | 0 | 6 (11%) | 3 (3%) | |
| Warm ischemia (min) | Not applicable | 35 (13-51) | Not applicable | 20 (8-50)** | |
| Hospital stay (days) | 2.0 (1-4) | 1.9 (1-6) | 2.5 (1-20) | 1.7 (1-11) | |
| Postop CrCl | 71 (46-94) | 89 (43-171) | 69 (27-138) | 85 (18-147) | |
| Pathology | Pathologic T category | ||||
| pT1a | 0 | 5 (63%) | 7 (13%) | 67 (69%) | |
| pT1b | 1 (8%) | 2 (25%) | 14 (26%) | 6 (6%) | |
| pT2 | 5 (42%) | 0 | 12 (22%) | 0 | |
| pT3a | 3 (25%) | 1 (13%) | 10 (18%) | 5 (5%) | |
| pT3b | 1 (8%) | 0 | 3 (5%) | 0 | |
| pT4 | 2 (16%) | 0 | 4 (7%) | 0 | |
| Clinical N category | |||||
| pNx | 0 | 6 (75%) | 9 (16%) | 77 (79%) | |
| pN0 | 10 (83%) | 2 (25%) | 36 (65%) | 0 | |
| pN1 | 0 | 0 | 0 | 0 | |
| pN2 | 2 (17%) | 0 | 5 (9%) | 1 (1%) | |
| Positive margins | 0 | 1 (13%) | 4 (7%) | 2 (2%) | |
| No. lymph nodes examined |
13.5 (3-24) | Not applicable | 14 (3-24) | Not applicable | |
*
Surgeries performed by the same surgeon at the same institution during the study period
**
p-value comparing study patients and historic control patients who underwent lap partial (only p-value<0.05 are noted):
Warm ischemia <0.001
Abbreviations: Lap radical, laparoscopic radical nephrectomy, Lap partial, laparoscopic partial nephrectomy, EBL, estimated blood loss, CrCl, creatinine clearance