The effect of biliopancreatic diversion surgery on renal function--a retrospective study

Biju Jose, Stephen Ford, Paul Super, G Neil Thomas, Indranil Dasgupta, Shahrad Taheri

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)


BACKGROUND: 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.

METHODS: We conducted a retrospective analysis of 25 patients who had undergone biliopancreatic diversion (BPD) surgery for extreme obesity (body mass index >40 kg/m(2)), 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.

RESULTS: 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/m(2) (SD = 15.45). The greatest improvement in eGFR was in the group (n = 7) with eGFR ≤60 ml/min/m(2). A subset of patients (n = 11) had evaluable BP readings and had a reduction in BP of 17/10 mmHg (SD = 33/12).

CONCLUSIONS: 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.

Original languageEnglish
Pages (from-to)634-7
Number of pages4
JournalObesity surgery
Issue number5
Publication statusPublished - May 2013


  • Adult
  • Biliopancreatic Diversion
  • Blood Pressure
  • Body Mass Index
  • Body Weight
  • Creatinine
  • Disease Progression
  • Female
  • Follow-Up Studies
  • Glomerular Filtration Rate
  • Great Britain
  • Humans
  • Male
  • Obesity, Morbid
  • Renal Insufficiency, Chronic
  • Retrospective Studies
  • Treatment Outcome
  • Weight Loss


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