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[Hypoparathyroidism after thyroidectomy. Analysis of a consecutive, recent series]
M R Pelizzo1, P Bernante, A Toniato
1Istituto di Chirurgia Generale I, Università degli Studi, Padova.
Minerva Chirurgica
|August 14, 1998
Summary
Post-thyroidectomy hypoparathyroidism occurred in 14% of patients after subtotal or total thyroidectomy, with a higher incidence after total thyroidectomy. Persistent hypoparathyroidism was less common but showed a trend in Graves' disease and thyroid cancer patients.
Area of Science:
- Endocrinology
- Surgical Oncology
- General Surgery
Background:
- Post-thyroidectomy hypoparathyroidism is a known complication.
- Understanding its incidence based on thyroidectomy extent is crucial for patient management.
Purpose of the Study:
- To determine the incidence of post-thyroidectomy hypoparathyroidism.
- To compare hypoparathyroidism rates between subtotal and total thyroidectomy.
- To investigate factors influencing persistent hypoparathyroidism.
Main Methods:
- Retrospective analysis of 249 consecutive thyroidectomy patients.
- Division into lobectomy, subtotal thyroidectomy, and total thyroidectomy groups.
- Assessment of short-term and persistent (≥6 months) hypoparathyroidism.
Main Results:
- No hypoparathyroidism in 49 lobectomy patients.
- 14% incidence of hypoparathyroidism in 200 subtotal/total thyroidectomy patients (28/200).
- Persistent hypoparathyroidism in 4% (8/200); higher incidence in total vs. subtotal thyroidectomy (17% vs. 5.66%, p<0.05).
Conclusions:
- Total thyroidectomy has a higher incidence of overall post-thyroidectomy hypoparathyroidism than subtotal thyroidectomy.
- Persistent hypoparathyroidism incidence did not significantly differ between total and subtotal thyroidectomy.
- Graves' disease and thyroid cancer may have a trend towards higher persistent hypoparathyroidism rates.