Is potassium iodide solution necessary before total thyroidectomy for Graves disease?

Area of Science:

• Endocrinology
• Surgical Oncology
• Thyroid Disease Management

Background:

• Potassium iodide (KI) is traditionally used to reduce vascularity and blood loss during thyroidectomy for Graves disease (GD).
• American Thyroid Association (ATA) guidelines recommend KI for GD but not for toxic multinodular goiter (TMNG).

Purpose of the Study:

• To evaluate the impact of preoperative potassium iodide (KI) on patient outcomes in total thyroidectomy for Graves disease (GD).
• To compare outcomes between GD patients and toxic multinodular goiter (TMNG) patients who did not receive preoperative KI.

Main Methods:

• Retrospective review of perioperative data from July 2008 to May 2012.
• Comparison of 162 GD patients (no preoperative KI) with 102 TMNG patients.
• Statistical analysis using Student's t test, chi-squared test, and multivariate linear regression.

Main Results:

• GD patients were younger and less likely to be obese than TMNG patients.
• No significant differences were observed in estimated blood loss or operative time between GD and TMNG groups.
• GD patients had a lower rate of transient hypocalcemia, with no significant differences in prolonged hypocalcemia, recurrent laryngeal nerve issues, or hematoma formation.

Conclusions:

• Despite ATA recommendations, omitting preoperative KI in GD thyroidectomy did not lead to adverse patient outcomes.
• The study suggests that KI may not be essential for all GD patients undergoing total thyroidectomy.