Abstract

Research Article

Is there improvement in renal function in patients undergoing bariatric surgery?

Juliana Amaro Borborema Bezerra, Carlos Teixeira Brandt*, Daniel Mozart Bezerra Borborema, Arthur Quirino Ramos, Matheus Rodrigues de Souza and Fernanda Andréa Menezes Florêncio Maciel

Published: 31 July, 2019 | Volume 3 - Issue 2 | Pages: 143-147

Introduction: Obesity may cause progressive chronic kidney disease. Weight loss in the postoperative follow-up of bariatric surgery may improve renal function in these patients. Thus, the purpose of this study was to give insight on the subject using a sensible biomarker.

Methods: This cross sectional study was performed in the Obesity Department from Campina Grande – Paraiba, Brazil. It was randomly enrolled 23 postoperative patients (7 bypass and 16 sleeve), with at least two years of follow-up, from the outpatient Department and 29 (18 bypass and 11 sleeve) in the preoperative period for bariatric surgery. They were homogeneously from both genders with ages ranging from 25 to 57 years. Serum levels of creatinine and cystatin C were measured, and the glomerular filtration rate (GFR) was estimated using the CKD Epi (chronic kidney disease epidemiology collaboration) cystatin-creatinine equation. The investigation was approved by the Ethics Committee.

Results: The mean body mass index (BMI) of the preoperative group was significantly greater than the postoperative group (p ≤ 0.0001). The mean serum levels of C cystatin was significantly greater in the postoperative group as compared to preoperative (p= 0.0197). However, there was no mean difference between creatinine serum concentrations comparing the two groups (p = 0.3252). The mean glomerular renal function rates of the groups were similar (p = 0.1240).

Conclusion: There is no definitive evidence for supporting the hypothesis that there is improvement in the kidney renal function after bariatric surgery in obese patients. Prospective cohorts are necessary to enlighten the answer for this important question.

Read Full Article HTML DOI: 10.29328/journal.jcn.1001039 Cite this Article Read Full Article PDF

Keywords:

Obesity; Kidney function tests; Glomerular filtration rate; Bariatric surgery

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