Parathyroid Hormone Reduction Predicts Transient Hypocalcemia after Total Thyroidectomy: A Single-Center Prospective Study

Objective. We performed this study to investigate the risk factors for postoperative hypocalcemia after total thyroidectomy with central lymph node dissection (CLND). Study Design. This was a single-center prospective study based on 176 consecutive patients who underwent total thyroidectomy for papi...

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Main Authors: Kangnan Mo, Jinbiao Shang, Kejing Wang, Jialei Gu, Peng Wang, Xilin Nie, Wendong Wang
Format: Article
Language:English
Published: Wiley 2020-01-01
Series:International Journal of Endocrinology
Online Access:http://dx.doi.org/10.1155/2020/7189857
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author Kangnan Mo
Jinbiao Shang
Kejing Wang
Jialei Gu
Peng Wang
Xilin Nie
Wendong Wang
author_facet Kangnan Mo
Jinbiao Shang
Kejing Wang
Jialei Gu
Peng Wang
Xilin Nie
Wendong Wang
author_sort Kangnan Mo
collection DOAJ
description Objective. We performed this study to investigate the risk factors for postoperative hypocalcemia after total thyroidectomy with central lymph node dissection (CLND). Study Design. This was a single-center prospective study based on 176 consecutive patients who underwent total thyroidectomy for papillary thyroid carcinoma. Setting. Patients were recruited between January 2016 and June 2018. Subjects and Methods. Patients who underwent bilateral (n = 155, bilateral group) and ipsilateral CLND (n = 21) after total thyroidectomy were included. The preoperative and postoperative parathyroid hormone (PTH) and calcium levels were detected. The risk factors for transient hypocalcemia were identified using logistic regression analysis and receiver operating characteristic (ROC) curve analysis. Results. Fifty-one (28.98%) patients developed transient hypocalcemia, and 2 patients (1.14%) developed permanent hypoparathyroidism. There was no difference in the gender ratio or the morbidity of hypocalcemia between the patients who underwent bilateral and ipsilateral CLND. On postoperative day 1, PTH decrease was a risk factor for transient hypocalcemia in the whole cohort (β = 0.043, OR = 1.044, 95% CI 1.023–1.065, p<0.001), bilateral group (β = 0.042, OR = 1.043, 95% CI 1.022–1.064, p<0.001), and female patients (β = 0.049, OR = 1.050, 95% CI 1.026–1.075, p<0.001). Tumor diameter was a risk factor for transient hypocalcemia in female patients (β = 0.499, OR = 1.647, 95% CI 1.003–2.704, p=0.049). The ROC curve analysis illustrated that 65.58%, 71.00%, and 71.00% PTH level reduction had high accuracy in predicting transient hypocalcemia in the whole cohort, bilateral group, and female patients, respectively (AUC = 0.986, 0.987, and 0.987). Conclusion. Asymptomatic female patients with bilateral CLND and a 71.00% PTH level reduction were at a high risk of transient hypocalcemia.
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spelling doaj-art-66ff9cc39f67404183e7dbec756b212d2025-08-20T03:34:48ZengWileyInternational Journal of Endocrinology1687-83371687-83452020-01-01202010.1155/2020/71898577189857Parathyroid Hormone Reduction Predicts Transient Hypocalcemia after Total Thyroidectomy: A Single-Center Prospective StudyKangnan Mo0Jinbiao Shang1Kejing Wang2Jialei Gu3Peng Wang4Xilin Nie5Wendong Wang6Department of Head and Neck Surgery, Cancer Hospital of University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), No. 1 Banshan Road (East), Gongshu, Hangzhou 310022, ChinaDepartment of Head and Neck Surgery, Cancer Hospital of University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), No. 1 Banshan Road (East), Gongshu, Hangzhou 310022, ChinaDepartment of Head and Neck Surgery, Cancer Hospital of University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), No. 1 Banshan Road (East), Gongshu, Hangzhou 310022, ChinaDepartment of Head and Neck Surgery, Cancer Hospital of University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), No. 1 Banshan Road (East), Gongshu, Hangzhou 310022, ChinaDepartment of Head and Neck Surgery, Cancer Hospital of University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), No. 1 Banshan Road (East), Gongshu, Hangzhou 310022, ChinaDepartment of Head and Neck Surgery, Cancer Hospital of University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), No. 1 Banshan Road (East), Gongshu, Hangzhou 310022, ChinaDepartment of Head and Neck Surgery, Cancer Hospital of University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), No. 1 Banshan Road (East), Gongshu, Hangzhou 310022, ChinaObjective. We performed this study to investigate the risk factors for postoperative hypocalcemia after total thyroidectomy with central lymph node dissection (CLND). Study Design. This was a single-center prospective study based on 176 consecutive patients who underwent total thyroidectomy for papillary thyroid carcinoma. Setting. Patients were recruited between January 2016 and June 2018. Subjects and Methods. Patients who underwent bilateral (n = 155, bilateral group) and ipsilateral CLND (n = 21) after total thyroidectomy were included. The preoperative and postoperative parathyroid hormone (PTH) and calcium levels were detected. The risk factors for transient hypocalcemia were identified using logistic regression analysis and receiver operating characteristic (ROC) curve analysis. Results. Fifty-one (28.98%) patients developed transient hypocalcemia, and 2 patients (1.14%) developed permanent hypoparathyroidism. There was no difference in the gender ratio or the morbidity of hypocalcemia between the patients who underwent bilateral and ipsilateral CLND. On postoperative day 1, PTH decrease was a risk factor for transient hypocalcemia in the whole cohort (β = 0.043, OR = 1.044, 95% CI 1.023–1.065, p<0.001), bilateral group (β = 0.042, OR = 1.043, 95% CI 1.022–1.064, p<0.001), and female patients (β = 0.049, OR = 1.050, 95% CI 1.026–1.075, p<0.001). Tumor diameter was a risk factor for transient hypocalcemia in female patients (β = 0.499, OR = 1.647, 95% CI 1.003–2.704, p=0.049). The ROC curve analysis illustrated that 65.58%, 71.00%, and 71.00% PTH level reduction had high accuracy in predicting transient hypocalcemia in the whole cohort, bilateral group, and female patients, respectively (AUC = 0.986, 0.987, and 0.987). Conclusion. Asymptomatic female patients with bilateral CLND and a 71.00% PTH level reduction were at a high risk of transient hypocalcemia.http://dx.doi.org/10.1155/2020/7189857
spellingShingle Kangnan Mo
Jinbiao Shang
Kejing Wang
Jialei Gu
Peng Wang
Xilin Nie
Wendong Wang
Parathyroid Hormone Reduction Predicts Transient Hypocalcemia after Total Thyroidectomy: A Single-Center Prospective Study
International Journal of Endocrinology
title Parathyroid Hormone Reduction Predicts Transient Hypocalcemia after Total Thyroidectomy: A Single-Center Prospective Study
title_full Parathyroid Hormone Reduction Predicts Transient Hypocalcemia after Total Thyroidectomy: A Single-Center Prospective Study
title_fullStr Parathyroid Hormone Reduction Predicts Transient Hypocalcemia after Total Thyroidectomy: A Single-Center Prospective Study
title_full_unstemmed Parathyroid Hormone Reduction Predicts Transient Hypocalcemia after Total Thyroidectomy: A Single-Center Prospective Study
title_short Parathyroid Hormone Reduction Predicts Transient Hypocalcemia after Total Thyroidectomy: A Single-Center Prospective Study
title_sort parathyroid hormone reduction predicts transient hypocalcemia after total thyroidectomy a single center prospective study
url http://dx.doi.org/10.1155/2020/7189857
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