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Impact of early postbariatric surgery acute kidney injury on long-term renal function


Nor Hanipah, Zubaidah and Punchai, Suriya and Augustin, Toms and Brethauer, Stacy A. and Schauer, Philip R. and Aminian, Ali (2018) Impact of early postbariatric surgery acute kidney injury on long-term renal function. Obesity Surgery, 28 (11). 3580 - 3585. ISSN 0960-8923; ESSN: 1708-0428


Background: Bariatric surgery can improve renal dysfunction associated with obesity and diabetes. However, acute kidney injury (AKI) can complicate the early postoperative course after bariatric surgery. The long-term consequences of early postoperative AKI on renal function are unknown. Methods: Patient undergoing bariatric surgery from 2008 to 2015 who developed AKI within 60 days after surgery were studied. Patients on dialysis before surgery were excluded. Results: Out of 4722 patients, 42 patients (0.9%) developed early postoperative AKI after bariatric surgery of whom five had chronic kidney disease (CKD) preoperatively including CKD stage 3 (n = 2), stage 4 (n = 2), and stage 5 (n = 1). Etiologies of AKI included prerenal in 37 and renal in 5 patients. Nine patients (21%) underwent hemodialysis in early postoperative period for AKI. The median duration of follow-up was 28 months (interquartile range, 4–59). Of the 40 patients eligible for follow-up, 36 patients (90%) returned to their baseline renal function. However, four patients (10%) had worsening of renal function at follow-up. Conclusions: The incidence of early postoperative AKI after bariatric surgery is about 1%. The most common causes of AKI after bariatric surgery are dehydration and infectious complications. In our series, 10% of patients who developed AKI in early postoperative period had worsening of renal function in long-term follow-up. In the absence of severe sepsis and severe underlying kidney dysfunction (CKD stages 4 and 5), full recovery is expected after postoperative AKI.

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Additional Metadata

Item Type: Article
Divisions: Faculty of Medicine and Health Science
DOI Number: https://doi.org/10.1007/s11695-018-3398-2
Publisher: Springer
Keywords: Acute kidney injury; Bariatric surgery; Obesity; Sleeve gastrectomy; Gastric bypass; Complication; Renal failure
Depositing User: Mr. Sazali Mohamad
Date Deposited: 15 Oct 2019 03:32
Last Modified: 15 Oct 2019 03:32
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1007/s11695-018-3398-2
URI: http://psasir.upm.edu.my/id/eprint/74563
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