Factors affecting swallowing during thyroid fine-needle aspiration biopsy

Area of Science:

• Endocrinology
• Medical Procedures
• Diagnostic Imaging

Background:

• Thyroid fine-needle aspiration biopsy (FNAB) is a common diagnostic procedure.
• Patient swallowing during FNAB can displace the thyroid, potentially affecting accuracy.
• Factors influencing swallowing during FNAB require investigation.

Purpose of the Study:

• To investigate factors influencing swallowing during thyroid fine-needle aspiration biopsy (FNAB).
• To determine if specific instructions affect swallowing behavior during the procedure.

Main Methods:

• Prospective study of 143 patients undergoing thyroid FNAB.
• Patients were randomly assigned to receive instructions not to swallow or no instructions.
• Nodule size and depth were measured; swallowing events and procedure duration were recorded.

Main Results:

• No significant difference in swallowing rates between instructed and uninstructed groups (36% vs. 34%).
• Male patients were significantly more likely to swallow than female patients (P = .003).
• Shorter procedure duration was associated with non-swallowing patients (15.7s vs. 19.8s, P = .001).

Conclusions:

• Explicit instructions to not swallow do not significantly alter patient behavior during thyroid FNAB.
• Male gender is associated with a higher likelihood of swallowing during the procedure.
• Minimizing procedure duration is crucial to prevent thyroid displacement and ensure diagnostic accuracy.