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Surgical strategy in lithium-associated hyperparathyroidism: A population-based study.
I-L Nilsson1,2, D Thorsteinsson1,2, C Nylén1,2
1Department of Breast, Endocrine Tumours and Sarcoma, Karolinska University Hospital, Stockholm, Sweden.
World Journal of Surgery
|April 30, 2024
Summary
Lithium-associated hyperparathyroidism (LAH) surgery is complex, with higher complication risks. A functional surgical approach is recommended to maintain normal calcium levels and minimize permanent hypoparathyroidism, accepting some recurrence risk.
Area of Science:
- Endocrinology
- Surgical Oncology
- Pharmacology
Background:
- Lithium-associated hyperparathyroidism (LAH) presents unique challenges in parathyroidectomy (PTX) decision-making.
- The optimal surgical strategy and long-term outcomes for LAH remain debated.
Purpose of the Study:
- To analyze surgical extent, complications, and long-term outcomes in patients with lithium-associated hyperparathyroidism.
- To compare outcomes between LAH and primary hyperparathyroidism (PHPT) without lithium exposure.
Main Methods:
- Population-based cohort study of PHPT patients undergoing PTX in Sweden (2008-2017).
- Data linkage with national registers and surgical quality registers to identify lithium exposure, comorbidities, surgical approach, and outcomes.
- Statistical analysis comparing LAH and non-LAH groups.
Main Results:
- Lithium exposure was significantly more prevalent in PHPT patients (2.3%) compared to controls (0.5%).
- LAH patients underwent more extensive surgery and had increased risks of postoperative bleeding, infections, persistent hypercalcemia, and hypocalcemia.
- Cumulative re-admission risk for PHPT was similar in the initial years post-PTX, but higher for those with >5 years of lithium exposure.
Conclusions:
- LAH is a complex endocrine disorder requiring careful surgical consideration.
- A functionally oriented surgical approach is recommended to achieve and maintain normocalcemia, minimizing permanent hypoparathyroidism while accepting potential recurrence.
