Factors predicting hypocalcemia after total thyroidectomy - A retrospective cohort analysis
Claudius Falch1, Jan Hornig1, Moritz Senne1
1Working Group for Surgical Technique and Training, Clinic for Visceral, General and Transplant Surgery, Tuebingen University Hospital, Germany.
International Journal of Surgery (London, England)
|May 20, 2018
Summary
Hypocalcemia, a common complication after total thyroidectomy, can be predicted by factors like female gender and longer surgery. Symptomatic initial hypocalcemia strongly predicts persistent low calcium levels requiring long-term treatment.
Area of Science:
- Endocrinology
- Surgical Oncology
- Metabolic Disorders
Background:
- Hypocalcemia is the most frequent complication following total thyroidectomy, often leading to extended hospital stays.
- Identifying predictive risk factors for hypocalcemia and its persistence is crucial for patient management.
Purpose of the Study:
- To analyze clinical risk factors associated with initial hypocalcemia after total thyroidectomy.
- To investigate predictors of long-term persistent hypocalcemia post-thyroidectomy.
Main Methods:
- Retrospective analysis of 702 patients who underwent total thyroidectomy between 2005 and 2013.
- Initial hypocalcemia defined as serum calcium < 2.0 mmol/l within 48 hours post-surgery.
- Persistent hypocalcemia defined as serum calcium < 2.0 mmol/l at six months or requiring supplementation.
Main Results:
- Initial hypocalcemia occurred in 22.8% of patients; 6.8% had persistent hypocalcemia.
- Symptomatic initial hypocalcemia was a significant predictor of persistent hypocalcemia (41.8% vs. 14.5%).
- Risk factors for initial hypocalcemia included female gender, prolonged surgery (>189 min), and parathyroid reimplantation.
Conclusions:
- Prolonged surgery time correlates with initial hypocalcemia but not its persistence.
- Initial symptomatic hypocalcemia is a strong independent predictor of persistent hypocalcemia after total thyroidectomy.
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