Perioperative Outcomes of Laparoscopic Partial Nephrectomy Stratified by Body Mass Index

Arvin K. George, Jason T. Rothwax, Amin Herati, Arun K. Srinivasan, Soroush Rais-Bahrami, Paras Shah, Nikhil Waingankar, Sandeep S. Saluja, Lee Richstone, Louis R. Kavoussi

Research output: Contribution to journalArticle

Abstract

Background and Purpose: Increased body mass index (BMI) has been shown to have inferior perioperative outcomes in patients undergoing laparoscopic partial nephrectomy (LPN). The aim of this study was to determine the differences in perioperative outcomes for patients undergoing LPN in normal, overweight, and obese persons using established BMI risk categories. Methods: A retrospective review of 488 patients undergoing LPN was performed stratifying patients according to BMI of <25 kg/m2, 25 to 30 kg/m2, and >30 kg/m2. The analysis of variance test, chi-square analysis, and bivariate regression models were used to compare comorbidities and perioperative outcomes among the groups. Results: One hundred and eighty nine of 369 patients were identified as being obese. Obese patients were found to have a significantly higher American Society of Anesthesiologists class (2.4 vs 2.1) than normal weight patients (P=0.03). No significant differences were demonstrated in estimated blood loss, operative time, transfusion requirement, or rate of conversion between the groups. In addition, there was no significant difference in cardiovascular, pulmonary, thromboembolic, or infectious complications between the groups. Obesity was significantly associated with bleeding necessitating angioembolization (P=0.033). Conclusion: LPN demonstrates equivalent perioperative outcomes in normal, overweight, and obese patients. The minimally invasive approach achieves equivalent outcomes in patients undergoing major abdominal surgery although further studies of alternate procedures are needed to validate our findings.

Original languageEnglish (US)
Pages (from-to)1011-1017
Number of pages7
JournalJournal of Endourology
Volume29
Issue number9
DOIs
StatePublished - Jan 1 2015
Externally publishedYes

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Nephrectomy
Body Mass Index
Chi-Square Distribution
Operative Time
Comorbidity
Analysis of Variance
Obesity
Regression Analysis
Hemorrhage
Weights and Measures
Lung

ASJC Scopus subject areas

  • Urology

Cite this

George, A. K., Rothwax, J. T., Herati, A., Srinivasan, A. K., Rais-Bahrami, S., Shah, P., ... Kavoussi, L. R. (2015). Perioperative Outcomes of Laparoscopic Partial Nephrectomy Stratified by Body Mass Index. Journal of Endourology, 29(9), 1011-1017. https://doi.org/10.1089/end.2014.0725

Perioperative Outcomes of Laparoscopic Partial Nephrectomy Stratified by Body Mass Index. / George, Arvin K.; Rothwax, Jason T.; Herati, Amin; Srinivasan, Arun K.; Rais-Bahrami, Soroush; Shah, Paras; Waingankar, Nikhil; Saluja, Sandeep S.; Richstone, Lee; Kavoussi, Louis R.

In: Journal of Endourology, Vol. 29, No. 9, 01.01.2015, p. 1011-1017.

Research output: Contribution to journalArticle

George, AK, Rothwax, JT, Herati, A, Srinivasan, AK, Rais-Bahrami, S, Shah, P, Waingankar, N, Saluja, SS, Richstone, L & Kavoussi, LR 2015, 'Perioperative Outcomes of Laparoscopic Partial Nephrectomy Stratified by Body Mass Index', Journal of Endourology, vol. 29, no. 9, pp. 1011-1017. https://doi.org/10.1089/end.2014.0725
George, Arvin K. ; Rothwax, Jason T. ; Herati, Amin ; Srinivasan, Arun K. ; Rais-Bahrami, Soroush ; Shah, Paras ; Waingankar, Nikhil ; Saluja, Sandeep S. ; Richstone, Lee ; Kavoussi, Louis R. / Perioperative Outcomes of Laparoscopic Partial Nephrectomy Stratified by Body Mass Index. In: Journal of Endourology. 2015 ; Vol. 29, No. 9. pp. 1011-1017.
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