Abnormalities of vocal cord motion in children with obstructive sleep apnea (OSA) who undergo drug-induced sleep endoscopy (DISE) are not frequently described. A 17-year-old female with a history of asthma, reflux, and bipolar disorder had a history of poor sleep. Polysomnography (PSG) showed apnea-hypopnea index (AHI) of 13.9/hr, obstructive AHI 10.3/hr, and oxygen saturation nadir 87%. Physical exam showed BMI 34 and 3+ tonsils. She underwent DISE with propofol infusion, which showed partial obstruction at the palatine and lingual tonsil levels, a posteriorly displaced epiglottis along with immobility of the left vocal cord. Tonsillectomy was performed as planned. At her post-op visit, laryngoscopy showed normal vocal cord motion bilaterally. Post-operative PSG was improved.

This case report describes a right arytenoid dislocation after emergency fiberoptic nasotracheal intubation in a patient with angioedema. The patient returned to the emergency department multiple times with classic symptoms of arytenoid dislocation, complicated by resultant postinjury laryngeal edema and poorly controlled laryngopharyngeal reflux. The arytenoid injury was not initially recognized, which delayed treatment. Several months later, intraoperative assessment was done because of continued symptoms suspicious for laryngeal injury, resulting in a diagnosis of right cricoarytenoid joint fixation resulting from prior intubation trauma. Because of delayed diagnosis and treatment, severe cricoarytenoid joint scarring and fixation prevented repositioning of the arytenoid and improvement in laryngeal function. Discussion of this case includes a review of the anatomy and function of the arytenoid and cricoarytenoid joint, along with factors that increase and decrease joint stability and risk of injury. The etiology of arytenoid dislocation is described, along with suspected mechanisms of injury in anterior vs posterior and right vs left dislocations. Classic symptoms, the importance of early identification, and treatment options are also discussed.

BACKGROUND: Unilateral vocal cord paralysis (UVCP) in infants may be managed medically or surgically, with the latter including injection laryngoplasty (IL). However, there is limited information regarding injection laryngoplasty in infants. We therefore proposed a survey of American Society of Pediatric Otolaryngology (ASPO) members to elucidate current practices, outcomes, and complications.
METHODS: An online survey was distributed to all 548 ASPO members via email. The survey was closed for data analysis 2 months after initial distribution. Statistical analysis was deferred due to the primarily descriptive nature of the data and lack of comparative studies.
RESULTS: We received 113 responses for a response rate of 20.6%. Only 31% of the respondents (n = 36) reported performing IL in infants 12 months old or younger. The most commonly cited reasons for not injecting in this age group were preference for non-surgical management and concern for increased risk of airway obstruction. IL was most commonly performed to treat persistent aspiration despite attempts at medical management. The majority (66%) reported no complications, while the remainder noted stridor requiring intensive care unit observation. Re-intubation due to airway obstruction occurred in 6% (n = 2 of 33). Carboxymethylcellulose gel (Prolaryn Gel) was the most commonly used injectable material, but a variety of other materials were used as well. Two respondents noted they perform reinnervation procedures in children, but not in infants, as they require at least a 12 month period of observation for possible spontaneous recovery before considering the option.
CONCLUSIONS: There is limited data regarding management of UVCP in infants with IL, and considerable variation among those who do perform the procedure. While adverse events are rare, multi-institutional studies should be considered to help determine best practices.

The development of the therapeutic possibilities of vocal cord immobility necessitated the parallel renewal of diagnostic methods. In the last years, laryngeal electromyography, which was first introduced more than 70 years ago, has been re-discovered. After reviewing the international literature and their own experience, the authors present the indications, technical requirements, method and, particularly, the evaluation of the results of this procedure. Laryngeal electromyography makes the differentiation between mechanical fixation and immobility with neurological origin of the vocal folds possible. In case of laryngeal paralysis/paresis it also evaluates objectively the severity of neural injury, the prognosis of the disease and the necessity of any glottis-widening procedure. The widespread application of dynamic rehabilitation interventions is not conceivable without the routine application of laryngeal electromyography, so this sensitive diagnostic tool has to be introduced in all laryngological centers. Orv Hetil. 2018; 159(8): 303-311.

Human cytomegalovirus (CMV) is an infectious herpes virus present in approximately 50% of the world\'s population. Pharyngitis is an uncommon manifestation of CMV infection, and vocal cord immobility (VCI) following CMV pharyngitis is quite rare. An 83-year-old man with well-controlled diabetes mellitus and hypertension was admitted due to dyspnea, odynophagia, and dysphagia. Laryngeal fiberscopy revealed bilateral vocal cords almost fixed at the median position, with mucosal redness, swelling, and edema at the hypopharyngeal area. The airway was so narrowed that an emergency tracheostomy was performed to secure an airway. VCI resulting from a malignant tumor was suspected at first, but repeated pathological examinations revealed CMV infection in the pharyngeal mucosa. Despite intravenous ganciclovir treatment (5 mg/kg), the patient\'s bilateral VCI improved only slightly. Laryngeal electromyography was used to investigate the causes of VCI, and revealed vocal fold paralysis on the left side and cricoarytenoid joint fixation on the right side. This case highlights the importance of considering CMV infection in the differential diagnosis of patients with pharyngitis and VCI. To the best of our knowledge, this is the first case report describing the etiology of VCI following CMV pharyngitis using laryngeal electromyography.

BACKGROUND: Bilateral vocal cord paralysis in adducted position (BVCPAd) is a severe cause of airway obstruction and usually debuts with stridor and airway distress necessitating immediate intervention. Tracheostomy has long been the gold standard for treating this condition, but has significant associated morbidity and mortality in pediatric patients. New conservative procedures have emerged to treat this condition thus avoiding tracheostomy, like endoscopic anterior and posterior cricoid split (EAPCS). The objective of this paper was to review our experience with EAPCS in newborns and infants.
METHODS: Prospective study involving patients undergoing endoscopic EAPCS for symptomatic BVCPAd. The primary outcomes were tracheostomy avoidance and resolution of airway symptoms.
RESULTS: Three patients underwent EAPCS between January 2016 and December 2016. All patients stayed at least 7 days in the Intensive Care Unit (ICU) intubated. All patients presented complete resolution of their symptoms due to airway obstruction, without the need for tracheostomy.
CONCLUSIONS: EAPCS is a novel and effective alternative to treat BVCPAd in patients under 1 year old. Our study is an initial experience; more cases are required to identify the real impact and benefits of this technique and to determine the proper selection of patients.

OBJECTIVE: Flexible laryngoscopy is the principle tool for the evaluation of vocal fold motion. As of yet, no consistent, unified outcome metric has been developed for vocal fold paralysis/immobility research. The goal of this study was to evaluate vocal fold motion assessment (inter- and intra-rater reliability) among general otolaryngologists and fellowship-trained laryngologists.
METHODS: Prospective video perceptual analysis study.
METHODS: Flexible laryngoscopic examinations, with sound, of 15 unique patient cases (20 seconds each) were sent to 10 general otolaryngologists and 10 fellowship-trained laryngologists blinded to clinical history. Reviewers were given written definitions of vocal fold mobility and immobility and two video examples. The cases included bilateral vocal fold mobility (six), unilateral vocal fold immobility (five), and unilateral vocal fold hypomobility (four). Five examinations were repeated to determine intra-rater reliability. Participants were asked to judge if there was or there was no purposeful motion, as described by written definitions, for each vocal fold (800 tokens in total).
RESULTS: Twenty reviewers (100%) replied. Both general otolaryngologists and fellowship-trained laryngologists had an overall inter-rater reliability of 95%. Difference in inter-rater reliability between the two groups of raters was negligible: 95% for general otolaryngologists and 97.5% for fellowship-trained laryngologists. There was no variability in intra-rater reliability within either rater group (99%).
CONCLUSIONS: Intra- and inter-rater agreement in determining whether the patient had purposeful vocal fold motion on flexible laryngoscopic examination was excellent in both groups. This study demonstrates that otolaryngologists can consistently and accurately judge the presence and the absence of vocal fold motion.

BACKGROUND: The aim of this study was to localize the motor entry point (MEP) of the thyroarytenoid muscle.
METHODS: Eight cadaver larynges were dissected. A virtual plane was used to represent the MEP in a coordinate (X/Y/Z) system. The inferior border of the thyroid cartilage was linked to the center of the anterior arc of the cricoid cartilage (the Y-axis). The X-axis was set perpendicular to the Y-axis; the Z-axis passed through the posterior border of the thyroid lamina from the height of the insertion point.
RESULTS: The mean X, Y, and Z coordinates were 6.2 mm, 9.1 mm, and 11.0 mm, respectively. The calculated angles of the lateral and superior deflections were 29.4° and 35.8°, respectively. The calculated insertion depth, that is, the distance from the insertion point to the MEP, was 15.6 mm.
CONCLUSIONS: These results may help to improve the accuracy of needle insertion during diagnostic laryngeal electromyography or laryngeal electromyography-guided injections.

Vocal cord paralysis is not a disease per se but is considered as a sign of underlying disease process that may be congenital or acquired, unilateral or bilateral, sudden or gradual in onset, and may occur at any age from cradle to the grave.This study vas carried out to know the incidence and etiopathology of vocal cord paralysis.The incidence was 0.42% or 42 per ten thousand new patients seen. Most patients presented in the 5th and 6th decades (77.2%). Males outnumbered females in the ratio of 3:1. The most common symptom of vocaL cord paralysis was hoarseness of voice alone(83.6%.).Onset of symptoms was gradual in 60% of cases.Left vocal cord was almost twice more commonly (61.9%)involved than the right one(38.1%).Idiopalhic group constituted 38.18% of patients followed by neoplaslic diseases 29.09oc.