A low or high BMI is a risk factor for renal hematoma after extracorporeal shock wave lithotripsy for kidney stones.

Nussberger, Fabio Victor; Roth, Beat; Metzger, Tobias Alfred; Kiss, Bernhard; Thalmann, George; Seiler, Roland (2017). A low or high BMI is a risk factor for renal hematoma after extracorporeal shock wave lithotripsy for kidney stones. Urolithiasis, 45(3), pp. 317-321. Springer 10.1007/s00240-016-0915-4

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The purpose of this study was to evaluate risk factors for renal hematoma after extracorporeal shock wave lithotripsy (SWL) for kidney stones in a matched case-control analysis of a subgroup of patients recruited from a prospective randomized cohort. Between 06/2010 and 03/2013, 418 patients underwent SWL with the MODULITH(®)-SLX-F2-lithotripter for kidney stones. In 39/418 patients (9 %), ultrasound at post-treatment day 1 revealed renal hematomas. For 37 of these patients, a matched group without hematoma could be selected according to the following matching criteria: age, gender, number and energy of shock waves, stone burden and localization. Risk factors for renal hematoma after SWL were compared between the two groups. The rates of diabetes, stopped anticoagulant/antiplatelet medications and arterial hypertension were not different between the two groups (p > 0.2). The skin-kidney distance was virtually the same in both groups (p = 0.5). In the hematoma group, significantly more patients had a high (>30: n = 16) as well as a low (<21.5: n = 4) BMI when compared to the control group (n = 4; n = 0; p < 0.001). Importantly, all patients with BMI <21.5 developed renal hematomas after SWL. Patients with a high (>30) or low (<21.5) BMI had a higher risk for renal damage after SWL. Therefore, alternative endoscopic treatment options should be considered in these patients.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Department of Dermatology, Urology, Rheumatology, Nephrology, Osteoporosis (DURN) > Clinic of Urology

UniBE Contributor:

Nussberger, Fabio Victor; Roth, Beat; Metzger, Tobias Alfred; Kiss, Bernhard; Thalmann, George and Seiler, Roland

Subjects:

600 Technology > 610 Medicine & health

ISSN:

2194-7236

Publisher:

Springer

Language:

English

Submitter:

Katharina Morgenegg

Date Deposited:

08 Mar 2017 13:26

Last Modified:

16 Jan 2018 13:31

Publisher DOI:

10.1007/s00240-016-0915-4

PubMed ID:

27576325

Uncontrolled Keywords:

BMI; Case–control analysis; Extracorporeal shock wave lithotripsy; Renal hematoma; Stones

BORIS DOI:

10.7892/boris.92743

URI:

https://boris.unibe.ch/id/eprint/92743

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