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Risk factors for hypocalcemia and hypoparathyroidism following thyroidectomy: a retrospective Chinese population study

Authors Wang Y, Bhandari A, Yang F, Zhang W, Xue L, Liu H, Zhang X, Chen C

Received 2 August 2017

Accepted for publication 12 October 2017

Published 15 November 2017 Volume 2017:9 Pages 627—635

DOI https://doi.org/10.2147/CMAR.S148090

Checked for plagiarism Yes

Review by Single-blind

Peer reviewers approved by Dr Colin Mak

Peer reviewer comments 3

Editor who approved publication: Dr Alexandra R. Fernandes


Ying-hao Wang,* Adheesh Bhandari,* Fan Yang, Wei Zhang, Li-jun Xue, Hai-guang Liu, Xiao-hua Zhang, Cheng-ze Chen

Department of Surgical Oncology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, People’s Republic of China

*These authors contributed equally to this work

Background: Hypocalcemia is one of the most common postoperative complications following thyroid surgery in clinical practice. The occurrence of hypocalcemia is mainly attributed to hypoparathyroidism when parathyroid glands are devascularized, injured, or dissected during the surgery. The aim of this study was to analyze the risk factors for hypocalcemia and hypoparathyroidism following thyroidectomy.
Patients and methods:
A total of 278 patients who underwent thyroid surgery were analyzed retrospectively. Univariate analysis and multivariable logistic regression were performed to discover the risk factors for hypocalcemia and hypoparathyroidism.
Results: Postoperative hypocalcemia occurred in 76 (27.3%) patients and hypoparathyroidism occurred in 42 (15.1%) patients. Seven factors were significantly related to the presence of postoperative hypocalcemia, namely, age (P=0.049), gender (P=0.015), lateral lymph node dissection (P=0.017), operation type (P<0.001), preoperative parathyroid hormone (PTH) level (P=0.035), operation time (P=0.001), and applying carbon nanoparticles (CNs; P=0.007). Our result revealed that gender (P=0.014), lateral lymph node dissection (P=0.038), operation type (P<0.001), operative time (P<0.001), and applying CNs (P=0.001) had a significant correlation with postoperative hypoparathyroidism.
Conclusion: These findings were crucial for guiding surgeons to prevent the occurrence of hypocalcemia and hypoparathyroidism.

Keywords:
hypocalcemia, hypoparathyroidism, thyroidectomy, risk factor
 

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