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KMID : 0358320110520080538
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Korean Journal of Urology
2011 Volume.52 No. 8 p.538 ~ p.542
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Obesity Is an Adverse Factor on Laparoscopic Radical Nephrectomy for T2 but Not T1 Renal Cell Carcinoma
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Kwon Se-Yun
Bae Jae-Jun
Lee Jung-Gon
Choi Seock-Hwan
Kim Bum-Soo
Yoo Eun-Sang
Kwon Tae-Gyun
Kim Tae-Hwan
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Abstract
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Purpose: Laparoscopic radical nephrectomy (LRN) is more challenging with increases in body mass index (BMI). Several recent studies have shown, however, that LRN can be safely performed even in obese patients. The influence of obesity on the perioperative outcomes of LRN has not been well elucidated for large renal tumors (>7 cm), however. We estimated the impact of obesity on LRN for stage T1 and T2 renal cell carcinoma (RCC).
Materials and Methods: From January 2004 to March 2011, 266 patients underwent LRN (T1: 195, T2: 71). These patients were subdivided into the following two groups according to BMI: the nonobese group (BMI less than 25 kg/m2) and the obese group (BMI greater than 25 kg/m2). Perioperative outcomes were retrospectively compared between these two groups in T1 and T2 RCC patients.
Results There were no significant differences in perioperative outcomes between the obese and nonobese groups of T1 RCC patients. However, in T2 RCC patients, operative time and complication rate were significantly increased in the obese group.
Conclusions: Our results suggest that LRN can be safely performed in Korean patients with T1 RCC regardless of obesity. In T2 RCC patients, however, LRN may become more difficult with increasing BMI considering a longer operation time as well as a higher complication rate. We suggest that LRN for obese patients with T2 RCC be carefully considered.
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KEYWORD
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Laparoscop, Obesity, Renal cell carcinoma
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