Association of body mass index with the outcomes of retrograde intrarenal surgery
Abstract
Objective: Overweight and obesity increased worldwide over four decades. In 2016, nearly 11% of men and 15% of women over 18 years old were obese. Obesity is accepted as a risk factor for renal stones. The relationship between obesity and urolithiasis is complicated. Various complications can occur during perioperative or postoperative follow-up in obese patients. Minimal invasive nature and high efficacy of Retrograde Intrarenal Surgery (RIRS) present itself as a safe and less morbid treatment option. In this study, we aimed to compare the efficacy and safety of RIRS in the treatment of kidney stones in different BMI levels.
Material and Methods: Files of 552 patients who underwent RIRS for renal stones between January 2012 and December 2017 were reviewed. We classified patients according to the World Health Organisation classification. These three groups were compared for stone-free rate, complication rate, operative and fluoroscopy times and length of hospital stay.
Results: The stone-free rate (SFR) of the study population was 80.8%. It was 81% for Group 1, 83.7% for Group 2 and 77.7% for Group 3. There was no statistically significant difference between the three groups among SFR (p=0.346). Clinical insignificant residual fragments (CIRF) status was also similar among three groups (p=0.254). Complication rates between the three groups were statistically similar (p=0.416).
Conclusion: In this study, we have shown that RIRS is a suitable option for all urolithiasis patients even for obese individuals. Stone-free rates, length of hospital stay, operation time and complication rates in obese patients are similar with non-obese patients.
Keywords
Supporting Institution
Project Number
Thanks
References
- 1. Organization WH. Overweight and Obesity. 2017 [cited 2017 October 11th]. Available from: http://www.who.int/ gho/ncd/risk_factors/overweight_text/en/.
- 2. Powell CR, Stoller ML, Schwartz BF, et al., Impact of body weight on urinary electrolytes in urinary stone formers. Urology. 2000; 55(6):825-830.
- 3. Trinchieri A, Croppi E, and Montanari E, Obesity and urolithiasis: evidence of regional influences. Urolithiasis. 2017; 45(3):271-278.
- 4. Choban PS and Flancbaum L, The impact of obesity on surgical outcomes: a review. J Am Coll Surg 1997; 185(6):593- 603.
- 5. Calvert RC and Burgess NA, Urolithiasis and obesity: metabolic and technical considerations. Curr Opin Urol. 2005; 15(2):113-117.
- 6. Doizi S, Letendre J, Bonneau C, et al., Comparative study of the treatment of renal stones with flexible ureterorenoscopy in normal weight, obese, and morbidly obese patients. Urology. 2015; 85:38-44.
- 7. Aboumarzouk OM, Monga M, Kata SG, et al., Flexible ureteroscopy and laser lithotripsy for stones >2 cm: a systematic review and meta-analysis. J Endourol. 2012; 26(10):1257-1263.
- 8. Chew BH, Zavaglia B, Paterson RF, et al., A multicenter comparison of the safety and effectiveness of ureteroscopic laser lithotripsy in obese and normal weight patients. J Endourol. 2013; 27(6):710-714.
Details
Primary Language
English
Subjects
Urology
Journal Section
Research Article
Authors
Volkan Selmi
*
0000-0003-2605-9935
Türkiye
Sercan Sarı
0000-0002-0994-3799
Türkiye
Harun Özdemir
0000-0002-3071-910X
Türkiye
İbrahim Kartal
0000-0002-2313-3522
Türkiye
Publication Date
June 29, 2021
Submission Date
October 7, 2020
Acceptance Date
December 9, 2020
Published in Issue
Year 2021 Volume: 16 Number: 2