Complications of thyroid surgery

Area of Science:

• Endocrinology
• Surgical Oncology
• Otolaryngology

Background:

• Thyroidectomy is a common procedure with potential complications.
• Understanding the risks of hypoparathyroidism and recurrent laryngeal nerve (RLN) injury is crucial for patient outcomes.
• Decisions regarding total versus completion thyroidectomy require careful consideration of these risks.

Purpose of the Study:

• To report and analyze the incidence of complications following thyroidectomy.
• To compare complication rates between total and completion thyroidectomy.
• To identify factors associated with recurrent laryngeal nerve (RLN) injury and hypoparathyroidism.

Main Methods:

• Retrospective review of 253 consecutive thyroidectomy patients from 1988 to 1992.
• Documentation of temporary and permanent hypoparathyroidism cases.
• Assessment of recurrent laryngeal nerve (RLN) injury, including vocal symptoms and nerve status.
• Statistical analysis to correlate surgical approach and volume of tissue resected with complications.

Main Results:

• 10 temporary hypoparathyroidism cases occurred.
• Permanent hypoparathyroidism occurred in 3.2% of patients after total thyroidectomy.
• Unplanned recurrent laryngeal nerve (RLN) injury occurred in 2.1% of nerves at risk, with 7 permanent injuries.
• RLN injury was associated with reduced speech loudness but not always hoarseness.
• Increased volume of thyroid tissue resected correlated with RLN injury (p < 0.05).
• Complication rates were similar for total and completion thyroidectomy.

Conclusions:

• Hypoparathyroidism is a more significant complication than symptomatic recurrent laryngeal nerve (RLN) injury after thyroidectomy.
• The volume of resected thyroid tissue is a risk factor for RLN injury.
• These findings impact the decision-making process for performing total or completion thyroidectomy.