Assessment of Vocal Cord Motion Using Laryngeal Ultrasound in Children: A Systematic Review and Meta-Analysis
CONCLUSIONS: Laryngeal ultrasound demonstrates high sensitivity and specificity for detecting vocal cord motion in children in a wide range of clinical settings. Laryngeal ultrasound offers a low-risk imaging option for assessing vocal cord function in children compared with the current gold standard of laryngoscopy.
ConclusionUltrasonography can be a valuable adjunct in this aspect of airway assessment. Ultrasound assessment of pre-epiglottic tissue thickness at the level of the thyrohyoid membrane may be useful to predict restricted/difficult direct laryngoscopy and difficult intubation. The ratio of hyomental distance between neutral and extended positions may also be a good predictor of difficult direct laryngoscopy.
ConclusionLaryngeal ultrasound is a useful non invasive imaging tool that can be used with acceptable sensitivity in detecting organic laryngeal diseases excluding laryngitis, hindered mainly by complete thyroid cartilage calcification in older males. Consequently we recommend its use as complementary to clinical examination and mirror laryngoscopy, or as an alternative to indirect laryngoscopy when required and in routine neck ultrasound exams when appropriate.
We present two cases of thyroiditis, who approached the physician for different complaints. The first was a female with a change in voice, foreign body sensation in throat, laryngoscopy showing left vocal cord paralysis, reduced thyroid stimulating hormone. An ultrasound neck was suggestive of thyroiditis, and a contrast enhanced computed tomography scan showed a bulky thyroid with enlarged cervical lymphadenopathy. The second patient was a female with high-grade fever, chills and the inability to take fluids-food. Assessment revealed bilateral enlarged, inflamed tonsils-membranous exudate, tender jugulo-digastric lymphade...