[Radiofrequency ablation-assisted laparoscopic partial nephrectomy without renal hilar vessel clamping: a report of 14 cases].
OBJECTIVE
To evaluate the clinical feasibility of radiofrequency ablation-assisted laparoscopic partial nephrectomy (RF-LCPN) without renal hilar vessel clamping.


METHODS
From January 2009 to June 2010, 14 cases with renal tumors were treated with RF-LCPN. The mean tumor size was 3.1 cm (range: 2.2 - 4.0 cm). All cases were staged at T(1a)N(0)M(0). The preoperative serum creatinine (SCr) was (87 ± 36) µmol/L and glomerular filtration rate (GFR) (45 ± 11) ml/min.


RESULTS
RF-LCPN was technically successful in all patients (14 tumors). The mean operative time was (152 ± 46) min and the mean blood loss (89 ± 52) ml. All tumor margins were negative. One patient with a brief period of urine leakage from lower pole calix was managed successfully by ureteral stenting and Foley catheter drainage of bladder. The postoperative hospital stay was (5 ± 2) days. The postoperative SCr was (90 ± 38) µmol/L and GFR (41 ± 12) ml/min. There was no statistic post-operative change of SCr and GFR (P > 0.05). All patients completed a minimum follow-up of 6 months (mean: 17 months, range: 6 - 25 months). No evidence of local or port-site recurrence or metastasis was found.


CONCLUSIONS
As an accurate and effective intervention with a relatively low incidence of complications, RF-LCPN may eliminate renal warm ischemia. But its long-term efficacy remains to be further studied.
Department of Urology, Affiliated Drum Tower Hospital, Medical College of Nanjing University, Nanjing 210008, China.
Xiao-Gong
XG
Li
Hui-Bo
HB
Lian
Hong-Qian
HQ
Guo
Gu-Tian
GT
Zhang
Shi-Wei
SW
Zhang
Feng
F
Qu
Lin-Fang
LF
Yao
Rong
R
Yang
Wei
W
Wang
D003250:Constriction; D006801:Humans; D007680:Kidney Neoplasms; D010535:Laparoscopy; D009364:Neoplasm Recurrence, Local; D009392:Nephrectomy