KMID : 0358320100510070467
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Korean Journal of Urology 2010 Volume.51 No. 7 p.467 ~ p.471
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Comparison of Laparoscopic and Open Partial Nephrectomies in T1a Renal Cell Carcinoma: A Korean Multicenter Experience
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Park Hong-Zoo
Seo Ill-Young Hwang Tae-Kon Kwon Tae-Gyun Lee Wan Kim Yong-June Jeon Seung-Hyun Kim Hyeon-Hoe Oh Tae-Hee Kang Seok-Ho Kwon Dong-Deuk Byun Seok-Soo Rha Koon-Ho Seo Seong-Il Lee Seung-Bae Jeon Yoon-Soo Choi Yun-Hee Park Sue-Kyung
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Abstract
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Purpose: We analyzed a series of patients who had undergone laparoscopic partial nephrectomies (LPNs) and open partial nephrectomies (OPNs) to compare outcomes of the two procedures in patients with pathologic T1a renal cell carcinomas (RCCs).
Materials and Methods: From January 1998 to May 2009, 417 LPNs and 345 OPNs were performed on patients with small renal tumors in 15 institutions in Korea. Of the patients, 273 and 279 patients, respectively, were confirmed to have pT1a RCC. The cohorts were compared with respect to demographics, peri-operative data, and oncologic and functional outcomes.
Results: The demographic data were similar between the groups. Although the tumor location was more exophytic (51% vs. 44%, p=0.047) and smaller (2.1 cm vs. 2.3 cm, p=0.026) in the LPN cohort, the OPN cohort demonstrated shorter ischemia times (23.4 min vs. 33.3 min, p<0.001). The LPN cohort was associated with less blood loss than the OPN cohort (293 ml vs. 418 ml, p<0.001). Of note, two patients who underwent LPNs had open conversions and nephrectomies were performed because of intra-operative hemorrhage. The decline in the glomerular filtration rate at the last available follow-up (LPN, 10.9%; and OPN, 10.6%) was similar in both groups (p=0.8). Kaplan-Meier estimates of 5-year local recurrence-free survival (RFS) were 96% after LPN and 94% after OPN (p=0.8).
Conclusions: The LPN group demonstrated similar rates of recurrence-free survival, complications, and postoperative GFR change compared with OPN group. The LPN may be an acceptable surgical option in patients with small RCC in Korea.
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KEYWORD
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Glomerular filtration rate, Kidney neoplasms, Nephrectomy, Outcomes assessment
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