The Effect of Biliopancreatic Diversion Surgery on Renal Function—a Retrospective Study
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The prevalences of obesity and chronic kidney disease (CKD) have increased simultaneously. Should a pathophysiological relationship exist between the two conditions, bariatric surgery and associated weight loss could be an important intervention in extremely obese individuals to slow the progression of CKD.
We conducted a retrospective analysis of 25 patients who had undergone biliopancreatic diversion (BPD) surgery for extreme obesity (body mass index >40 kg/m2), with mean follow-up of 4 years. We assessed pre- and post-surgery renal function, body weight and blood pressure (BP) obtained from electronic hospital and primary care records.
There was a significant reduction in mean body weight at 4 years by 50.3 kg (SD = 20.65). The creatinine and estimated glomerular filtration rate (eGFR) also improved significantly: serum creatinine reduced by 16.2 μmol/l (SD = 19.57) while the eGFR improved by 10.6 ml/min/m2 (SD = 15.45). The greatest improvement in eGFR was in the group (n = 7) with eGFR ≤60 ml/min/m2. A subset of patients (n = 11) had evaluable BP readings and had a reduction in BP of 17/10 mmHg (SD = 33/12).
This retrospective study demonstrates a clinically significant improvement in renal function following BPD. Several mechanisms including weight loss could account for the positive impact on renal function. The physiology underlying this improvement requires further study.
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- The Effect of Biliopancreatic Diversion Surgery on Renal Function—a Retrospective Study
Volume 23, Issue 5 , pp 634-637
- Cover Date
- Print ISSN
- Online ISSN
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- Renal function
- Weight loss
- Bariatric surgery
- Industry Sectors
- Author Affiliations
- 1. Specialist Weight Management Services, Heart of England Foundation NHS Trust, Birmingham, UK
- 2. Department of Renal Medicine, Heart of England Foundation NHS Trust, Birmingham Heartlands Hospital, Bordesley Green East, Birmingham, B9 5SS, UK
- 3. Department of Bariatric and Upper Gastrointestinal Surgery, Heart of England Foundation NHS Trust, Birmingham, UK
- 4. School of Health and Population Sciences, University of Birmingham, Birmingham, UK
- 5. School of Clinical and Experimental Medicine, University of Birmingham, and Birmingham and Black Country NIHR CLAHRC, Room 109, Public Health Building, Edgbaston, B15 2TT, Birmingham, UK