Clinical efficacy of radical nephrectomy versus nephron-sparing surgery on localized renal cell carcinoma.
BACKGROUND
The aim of the present study was to compare the clinical efficacy of radical nephrectomy (RN) with nephron-sparing surgery (NSS) in treating patients with localized renal cell carcinoma (RCC).


METHODS
The literature search was performed in PubMed, MEDLINE Springer, Elsevier Science Direct, Cochrane Library, and Google Scholar up to December 2012. The software Review Manager 5.1 and the STATA software package v.11.0 were used for analyses. The odds ratios (ORs) and its 95% confidence interval (95% CI) were calculated for comparison. Subgroup analyses were performed based on the tumor size of RCC.


RESULTS
In total, 10 studies with 10,174 RCC patients (7,050 treated with RN and 3,124 treated with NSS) were selected. The pooled estimate (OR = 1.58, 95% CI = 1.15-2.15, P = 0.004) showed a significantly lower rate of cancer-specific deaths in the patients treated with NSS compared to RN. However, no statistically significant differences were found in the rate of tumor recurrence (OR = 0.84, 95% CI = 0.67-1.06, P = 0.14) and complications (OR = 0.91, 95% CI = 0.51-1.63, P = 0.74) between the patients treated with NSS and RN. In addition, all the subgroup analyses presented consistent results with the overall analyses.


CONCLUSIONS
NSS had no significantly different from RN in tumor recurrence and complications for localized RCC. However, the significantly lower rate of cancer-specific deaths supported the use of NSS not only for RCC with tumor size >4.0 cm but also for tumor sizes ≤4.0 cm compared with RN.
Department of oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, NO. 1095 Jiefang Avenue, Wuhan, Hubei, 430030, China. liwentao8d@163.com.
Wentao
W
Li
Department of oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, NO. 1095 Jiefang Avenue, Wuhan, Hubei, 430030, China. chengyanleitr@163.com.
Yanlei
Y
Cheng
Department of oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, NO. 1095 Jiefang Avenue, Wuhan, Hubei, 430030, China. chengyiy3@163.com.
Yi
Y
Cheng
Department of oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, NO. 1095 Jiefang Avenue, Wuhan, Hubei, 430030, China. renhuitp@163.com.
Hui
H
Ren
Department of oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, NO. 1095 Jiefang Avenue, Wuhan, Hubei, 430030, China. hannanahan@hotmail.com.
Na
N
Han
D002292:Carcinoma, Renal Cell / Q000473:pathology / Q000601:surgery*; D006801:Humans; D007680:Kidney Neoplasms / Q000473:pathology / Q000601:surgery*; D009364:Neoplasm Recurrence, Local / Q000473:pathology / Q000601:surgery*; D009392:Nephrectomy / Q000379:methods; D009399:Nephrons / Q000601:surgery*; D011183:Postoperative Complications; D016896:Treatment Outcome