Abstract:Objective To compare the effects among three different suture methods in retroperitoneal laparoscopic partial nephrectomy (LPN). Methods 93 patients with renal cell carcinoma (RCC) treated by LPN were divided into three groups, as V-loc two-layer barbed absorbable running suture group with 43 cases, one-layer running suture group with 28 cases (2-0 Vicryl absorbable suture combined with Hem-o-loc in knotless continuous suture technique). 22 cases were enrolled in one-layer interrupted suture (2-0 Vicryl absorbable suture combined with hemostatic gauze in interrupted suture technique). Operation time, warm ischemia time, average intraoperative bleeding volume, postoperative hospital stay, and incidence of postoperative complications of the three groups were compared. Results All the 93 cases underwent successful operation, and none of them received alternative open operation. 5 cases received alternative laparoscopic radical nephrectomy. All patients had negative surgical margin. The sex, age, tumor site were comparable among three groups. But the tumor diameter were different among three groups. The operation time among three groups (one-layer interrupted suture group, one-layer running suture group, two-layer barbed absorbable running suture group) were (94.00 ± 19.00) min vs (85.0 0± 14.00) min vs (75.00 ± 10.00) min, respectively (P < 0.05). The warm ischemia time were (27.30 ± 4.90) min vs (22.60 ± 4.20) min vs (19.90 ± 3.80) min, respectively (P < 0.05). The intraoperative blood loss were (131.00 ± 57.00) ml vs (96.00 ± 34.00) ml vs (76.00 ± 22.00) ml, respectively (P < 0.05). The incidence of alternative laparoscopic radical nephrectomy were 3 cases, 1 case, 1 case, respectively (P > 0.05). The incidence of urinary fistula after surgery were 3 cases, 1 case and none among three groups (P < 0.05). The incidence of hematoma after surgery were 3 cases, 1 case and 1 case, respectively (P > 0.05). Conclusion The applying V-loc two-layer barbed absorbable running suture in retroperitoneal laparoscopic partial nephrectomy can not only remarkably shorten warm ischemia time and operation time, but also decrease the incidence of complications such as urinary fistula and bleeding.