Objective: To investigate the feasibility of retroperitoneal
laparoscopic nephron-sparing partial nephrectomy for treating
stage T1 renal tumors.
Methods: The clinical data of 22 cases (8 men and 14 women;
mean age: 48 years) who had undergone retroperitoneal
laparoscopic nephron-sparing partial nephrectomy for stage
T1 renal tumors were retrospectively analyzed. Among them 1
case had bilateral renal tumor, and 1 case was unilateral double
tumor foci; tumors were in left kidney in 13 patients and in right
kidneys in 10 patients. The average diameter of tumor masses
was 3.0 cm.
Results: All operations were completed successfully. The
average operation duration was 135 min, the average renal artery
occlusion time was 29 min, the average blood loss was 55 mL,
and the average hospital stay was 10 days. No intraoperative
suigical complication was noted, and only 1 case was present
with leakage of urine. Intraoperative pathological margins were
negative, and postoperative pathologies were as follows: 19 cases
were renal cell carcinoma, 2 were multilocular cystic renal cell
carcinoma, 2 were renal oncocytoma, and 1 was chromophobe
renal cell adenocarcinoma. Patients were followed up from 1 to
28 months (mean: 10 months), during which no local recurrence
and distant metastasis was observed.
Conclusions: Laparoscopic nephron-sparing partial nephrectomy is safe and feasible for treating for T1 renal tumors. However, its
long-term efficacy requires further investigation.