A Prospective Observational Study on the Accuracy of Transcutaneous Laryngeal Ultrasonography in Assessing Vocal Cord Mobility before and after Thyroid Surgery
View abstract on PubMed
Summary
This summary is machine-generated.Transcutaneous laryngeal ultrasonography (TLUS) accurately assesses vocal cord function after thyroid surgery. This non-invasive method offers a reliable alternative to laryngoscopy for evaluating vocal cord mobility.
Area Of Science
- Otolaryngology
- Endocrinology
- Diagnostic Imaging
Background
- Recurrent laryngeal nerve (RLN) injury is a significant complication of thyroidectomy, impacting vocal cord (VC) function.
- Traditional laryngoscopy is used for VC assessment, but non-invasive alternatives are sought.
Purpose Of The Study
- To compare the diagnostic accuracy of Transcutaneous Laryngeal Ultrasonography (TLUS) with laryngoscopy for assessing VC function in thyroid surgery patients.
Main Methods
- A prospective observational study included 105 patients undergoing thyroidectomy.
- TLUS was performed by endocrine surgeons to evaluate VC mobility, categorizing it as usual or paralyzed.
Main Results
- Preoperatively, TLUS demonstrated 100% sensitivity, PPV, and diagnostic accuracy.
- Postoperatively, TLUS showed 99.02% sensitivity, 100% specificity, and 99.05% diagnostic accuracy, with a 100% PPV.
Conclusions
- TLUS is a highly accurate, non-invasive, economical, and patient-friendly tool for assessing VC mobility.
- TLUS can supplement laryngoscopy in routine preoperative and postoperative care for thyroid surgery patients.
Related Concept Videos
The human larynx, often referred to as the voice box, is an intricate organ located in the neck. It serves as a pathway for air to enter the lungs during respiration and is an essential component of voice production.
Anatomy of the Larynx
The larynx consists of various components, including cartilage, muscles, and vocal cords. Its structure includes three large unpaired cartilages—the thyroid, cricoid, and epiglottis—and three smaller paired cartilages—the arytenoids,...
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The follicles have a central cavity lined by simple cuboidal to squamous epithelial cells called follicular cells. These cells produce the glycoprotein...
Low blood levels of the thyroid hormones — triiodothyronine (T3) and thyroxine (T4) — signal the hypothalamus to release the thyrotropin-releasing hormone (TRH). TRH then reaches the pituitary gland and stimulates the release of thyroid-stimulating hormone(TSH) into the bloodstream.
Upon reaching the thyroid gland, TSH stimulates the follicular cells' active uptake of iodide ions from the blood. The ions diffuse to the apical surface of the cells and are oxidized to iodine. The...

