The use of prophylactic infusion of calcium gluconate compared to placebo in reducing the rate of early hypocalcaemia after total thyroidectomy: a double-blinded, randomized controlled trial

Khoo, Kah Seng and Yeo, Audrey and Asfian, Muhammad Ridwan Mirzan and Ng, Khoon Leong (2024) The use of prophylactic infusion of calcium gluconate compared to placebo in reducing the rate of early hypocalcaemia after total thyroidectomy: a double-blinded, randomized controlled trial. Gland Surgery, 13 (8). pp. 1378-1386. ISSN 2227-684X, DOI https://doi.org/10.21037/gs-24-190.

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Official URL: https://doi.org/10.21037/gs-24-190

Abstract

Background: Hypocalcaemia as a common complication after total thyroidectomy 23-40% in University Malaya Medical Centre (UMMC)] and could result in prolonged hospital stay. We compared the early hypocalcaemia rate between prophylactic infusion of calcium and placebo among post total thyroidectomy patients and to establish whether prophylactic intravenous infusion of calcium reduces the rate of hypocalcaemia in the first 48 hours after surgery. Methods: Patients undergoing elective total thyroidectomy in UMMC between June 2020-May 2022, were recruited and randomized to receive placebo or prophylactic calcium infusion. Both groups of patients received same dosages of post-operative prophylactic vitamin D and oral calcium. Early hypocalcaemia (within 48 hours) rate after surgery was the primary outcome and duration of hospital stay was the secondary outcome. The data collected was analysed using per-protocol analysis. Results: Thirty-four patients were randomized equally (1:1) into both arms. No differences in the early hypocalcaemia rate between the intervention and placebo arms (0% vs. 5.8%, P>0.05). The median serum calcium levels were comparable between the intervention and placebo arms at 6 hours (2.33 vs. 2.37 mmol/L, P=0.59) and 48 hours (2.26 vs. 2.23 mmol/L, P=0.19) post-surgery. However, the median serum calcium level at 24 hours was statistically significantly higher in the intervention arm than the placebo arm (2.31 vs. 2.22 mmol/L, P=0.02). Similar duration of hospital stay between the both groups (2 vs. 2 days, P=0.81). Conclusions: Routine prophylactic calcium infusion with oral calcium and vitamin D does not diminish the rate of early symptomatic hypocalcaemia post total thyroidectomy in a low-risk group. However, its usefulness needs to be further assessed in a large scale randomized controlled trial (RCT) incorporating more bigger population.

Item Type: Article
Funders: UNSPECIFIED
Uncontrolled Keywords: Total thyroidectomy; hypocalcaemia; prophylactic calcium infusion; length of stay
Subjects: R Medicine > R Medicine (General)
Divisions: Faculty of Medicine > Surgery Department
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 07 Apr 2025 08:21
Last Modified: 07 Apr 2025 08:21
URI: http://eprints.um.edu.my/id/eprint/46731

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