Hypoparathyroidism After Total Thyroidectomy in Patients with Previous Gastric Bypass

Overview

Journal Langenbecks Arch Surg

Specialty General Surgery

Date 2016 Oct 27

PMID 27783154

Citations 2

Authors

Raoul A Droeser

Johan Ottosson

Andreas Muth

Hella Hultin

Karin Lindwall-Ahlander

Anders Bergenfelz

Martin Almquist

Affiliations

Soon will be listed here.

Abstract

Purpose: Case reports suggest that patients with previous gastric bypass have an increased risk of severe hypocalcemia after total thyroidectomy, but there are no population-based studies. The prevalence of gastric bypass before thyroidectomy and the risk of hypocalcemia after thyroidectomy in patients with previous gastric bypass were investigated.

Methods: By cross-linking The Scandinavian Quality Registry for Thyroid, Parathyroid and Adrenal Surgery with the Scandinavian Obesity Surgery Registry patients operated with total thyroidectomy without concurrent or previous surgery for hyperparathyroidism were identified and grouped according to previous gastric bypass. The risk of treatment with intravenous calcium during hospital stay, and with oral calcium and vitamin D at 6 weeks and 6 months postoperatively was calculated by using multiple logistic regression in the overall cohort and in a 1:1 nested case-control analysis.

Results: We identified 6115 patients treated with total thyroidectomy. Out of these, 25 (0.4 %) had undergone previous gastric bypass surgery. In logistic regression, previous gastric bypass was not associated with treatment with i.v. calcium (OR 2.05, 95 % CI 0.48-8.74), or calcium and/or vitamin D at 6 weeks (1.14 (0.39-3.35), 1.31 (0.39-4.42)) or 6 months after total thyroidectomy (1.71 (0.40-7.32), 2.28 (0.53-9.75)). In the nested case-control analysis, rates of treatment for hypocalcemia were similar in patients with and without previous gastric bypass.

Conclusion: Previous gastric bypass surgery was infrequent in patients undergoing total thyroidectomy and was not associated with an increased risk of postoperative hypocalcemia.

Citing Articles

Laparoscopic Revision of Bariatric Surgeries in Two Patients with Severe Resistant Hypocalcemia After Endocrine Cervical Surgery.

Zaarour M, Zaharia R, Bretault M, Jublanc C, De Marcellus C, Bouillot J Obes Surg. 2019; 30(4):1616-1620.

PMID: 31463800 DOI: 10.1007/s11695-019-04132-8.

Post-thyroidectomy Hypocalcemia in Patients With History of Bariatric Operations: Current Evidence and Management Options.

Spartalis E, Thanassa A, Athanasiadis D, Schizas D, Athanasiou A, Zografos G In Vivo. 2019; 33(4):1373-1379.

PMID: 31280233 PMC: 6689337. DOI: 10.21873/invivo.11614.

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