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Obesity is not associated with increased operative complications in single-site robotic partial nephrectomy

 Christos Komninos  ;  Patrick Tuliao  ;  Kyo Chul Koo  ;  Chien-Hsiang Chang  ;  Woong Kyu Han  ;  Koon Ho Rha 
 YONSEI MEDICAL JOURNAL, Vol.56(2) : 382-387, 2015 
Journal Title
Issue Date
Adult ; Blood Transfusion ; Body Mass Index ; Female ; Humans ; Kidney Neoplasms/surgery* ; Laparoscopy*/adverse effects ; Male ; Middle Aged ; Nephrectomy/methods* ; Obesity/complications* ; Operative Time ; Outcome Assessment (Health Care) ; Postoperative Complications ; Republic of Korea ; Retrospective Studies ; Robotic Surgical Procedures/methods* ; Robotics* ; Treatment Outcome ; Warm Ischemia
Body mass index ; partial nephrectomy ; robotic surgery
PURPOSE: To evaluate the impact of high body mass index (BMI) on outcomes following robotic laparoendoscopic single-site surgery (R-LESS) robotic-assisted laparoscopic partial nephrectomy (RPN). MATERIALS AND METHODS: Data from 83 Korean patients who had undergone robotic partial nephrectomy from 2006 to 2014 were retrospectively analyzed. The subjects were stratified into two groups according to WHO definitions for the Asian population, consisting of 56 normal range (BMI=18.5-24.99 kg/m²) and 27 obese (≥25 kg/m²) patients. Outcome measurements included Trifecta achievement and the perioperative and postoperative comparison between high and normal BMI series. The measurements were estimated and analyzed with SPSS version 17. RESULTS: Tumor's complexity characteristics (R.E.N.A.L. score, tumor size) of both groups were similar. No significant differences existed between the two groups with regard to operative time (p=0.27), warm ischemia time (p=0.35) estimated blood loss (p=0.42), transfusion rate (p=0.48) renal function following up for 1 year, positive margins (p=0.24) and postoperative complication rate (p=0.34). Trifecta was achieved in 5 (18.5%) obese and 19 (33.9%) normal weight patients, respectively (p=0.14). In multivariable analysis, only tumor size was significantly correlated with the possibility of Trifecta accomplishment. CONCLUSION: Our findings suggest that R-LESS RPN can be effectively and safely performed in patients with increased BMI, since Trifecta rate, and perioperative and postoperative outcomes are not significantly different in comparison to normal weight subjects.
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1. College of Medicine (의과대학) > Dept. of Urology (비뇨의학교실) > 1. Journal Papers
Yonsei Authors
Koo, Kyo Chul(구교철) ORCID logo https://orcid.org/0000-0001-7303-6256
Rha, Koon Ho(나군호) ORCID logo https://orcid.org/0000-0001-8588-7584
Chang, Chien Hsiang(장첸샹)
Komninos, Christos(크리스토스콤니노스)
Tuliao, Patrick(툴리아오패트릭)
Han, Woong Kyu(한웅규) ORCID logo https://orcid.org/0000-0002-2527-4046
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