Socioeconomic and racial disparities in revisits, indication, and readmission or reoperation in pediatric tonsillectomy.

INTRODUCTION: Pediatric tonsillectomy is a frequent otolaryngologic procedure. This study aimed to characterize disparities in post-tonsillectomy revisits, including emergency department evaluation, readmission, or reoperation as well as indication for revisit. METHODS: Cases of inpatient and ambulatory pediatric tonsillectomy in New York and Florida in 2016 constituted the analytic sample. Patients were extracted from the State Ambulatory Surgery Databases (SASD) and State Inpatient Databases (SID) and linked to the SID and State Emergency Department Database (SEDD) and SASD. Outcomes include 3 types of revisits within 30 days: ED visits, hospital readmissions, and reoperation. Indication for revisit was also analyzed. Multivariable analysis determined the association of each outcome with gender, age, race/ethnicity, primary payer, urbanicity, and zip code median household income quartile. The Holm Bonferroni test was used to correct for multiple hypothesis testing. RESULTS: 15,264 pediatric tonsillectomies were included. The revisit rate was 6.77% (N = 1,034, 49.1% female; 6 years median age [interquartile range: 5]). The 30-day ED revisit rate was 4.85%, readmission rate was 1.27%, and reoperation rate was 0.65%. On multivariate analysis, Latinx patients (OR = 3.042, 95% CI = 1.393-6.803) and those who identify as other race/ethnicity (OR = 6.116, 95% CI = 1.989-19.245) have greater odds of requiring inpatient care for indications including pain, dehydration, nausea, and vomiting compared to white patients. No significant differences in tier of care for the management of post-tonsillectomy hemorrhage were identified. CONCLUSION: Disparities in pediatric post-tonsillectomy ED presentation, readmission and reoperation demonstrate opportunities to improve patient safety and equity.

Pediatric intraoperative nerve monitoring during thyroid surgery: A review from the American Head and Neck Society Endocrine Surgery Section and the International Neural Monitoring Study Group.

Children are more likely to experience recurrent laryngeal nerve (RLN) injury during thyroid surgery. Intraoperative nerve monitoring (IONM) may assist in nerve identification and surgical decision making. A literature review of pediatric IONM was performed and used to inform a monitoring technique guide and expert opinion statements. Pediatric IONM is achieved using a variety of methods. When age-appropriate endotracheal tubes with integrated surface electrodes are not available, an alternative method should be used. Patient age and surgeon experience with laryngoscopy influence technique selection; four techniques are described in detail. Surgeons must be familiar with the nuances of monitoring technique and interpretation; opinion statements address optimizing this technology in children. Adult IONM guidelines may offer strategies for surgical decision making in children. In some cases, delay of second-sided surgery may reduce bilateral RLN injury risk.

The Effect of the COVID-19 Pandemic on Pediatric Tympanostomy Tube Placement.

OBJECTIVE: To evaluate how the coronavirus disease 2019 (COVID-19) pandemic has affected tympanostomy tube placement and practice patterns. STUDY DESIGN: A retrospective review of billing data. SETTING: A large-volume practice with both community and tertiary care providers. METHODS: As part of a quality initiative, billing data were queried to identify children <18 years of age who underwent tympanostomy tube placement between January 2019 and December 2020. Patient age, practice location, and case numbers were gathered. RESULTS: The study included data from 2652 patients. Prior to state-mandated clinic and operating room restrictions, there were no significant differences in the number of tympanostomy tubes placed (P = .64), including month-to-month comparisons, the distribution of patients being cared for at community vs tertiary care sites (P = .63), or patient age at the time of surgery (P = .97) between 2019 and 2020. After resumption of outpatient clinical and elective surgical activities, the number of tympanostomy tubes placed decreased significantly between 2019 and 2020 (831 vs 303 cases, P = .003), with a persistent month-to-month difference. In addition, patients undergoing tube placement were older (4.5 vs 3.2 years, P < .001). The distribution of cases performed in the community setting decreased during this time period as well (P < .001). CONCLUSION: During the COVID-19 pandemic, the rate of pediatric tympanostomy tube placement has significantly decreased. The age of patients undergoing surgery has increased, and more children are being cared for in a tertiary setting. These findings may reflect changes in the prevalence of acute and chronic otitis media as the result of the pandemic.

Otoendoscopes to Enhance Telemedicine During the COVID-19 Pandemic.

OBJECTIVES: As telemedicine has become increasingly utilized during the COVID-19 pandemic, portable otoendoscopy offers a method to perform an ear examination at home. The objective of this pilot study was to assess the quality of otoendoscopic images obtained by non-medical individuals and to determine the effect of a simple training protocol on image quality. METHODS: Non-medical participants were recruited and asked to capture images of the tympanic membrane before and after completion of a training module, as well as complete a survey about their experience using the otoendoscope. Images were de-identified, randomized, and evaluated by 6 otolaryngologists who were blinded as to whether training had been performed prior to the image capture. Images were rated using a 5-point Likert scale. RESULTS: Completion of a training module resulted in a significantly higher percentage of tympanic membrane visible on otoendoscopic images, as well as increased physician confidence in identifying middle ear effusion/infection, cholesteatoma, and deferring an in-person otoscopy (P < .0001). However, even with improved image quality, in most cases, physicians reported that they would not feel comfortable using the images to for diagnosis or to defer an in-person examination. Most participants reported that the otoendoscope was simple to use and that they would feel comfortable paying for the device. CONCLUSIONS: At-home otoendoscopes can offer a sufficient view of the tympanic membrane in select cases. The use of a simple training tool can significantly improve image quality, though often not enough to replace an in-person otoscopic exam.

Hybrid laryngotracheal reconstruction vs single and double stage: Indications and outcomes.

OBJECTIVES: To describe outcomes from laryngotracheal reconstruction and decannulation rates for patients undergoing single stage, double stage and hybrid staged procedures at a single tertiary care institution and evaluate if the 1.5LTR is a viable reconstructive option for patients with subglottic stenosis. STUDY DESIGN: Retrospective chart review. SETTING: Tertiary care otolaryngology specialty hospital and internationally. SUBJECTS: All patients who underwent LTR by a single pediatric otolaryngology surgeon from 2008 to 2018. METHODS: Charts were assessed for age, gender, etiology, type of reconstruction, comorbidities, length of stay, tracheostomy status and socioeconomic status. Analysis was performed using Microsoft Excel and multivariate logistic regression models. RESULTS: 96 patients underwent laryngotracheal reconstruction at MEEI. Internationally, 36 patients underwent laryngotracheal reconstruction with the primary surgeon. Overall decannulation rates for ssLTR, dsLTR, and 1.5LTR were 95.6%, 77.8%, and 91.2% respectively. Our Operation Specific Decannulation Rates (one open airway procedure only) for ssLTR, dsLTR, and 1.5LTR were 87.5%, 33%, and 88% respectively. Adjusted odds of decannulation were not significantly different between males and females, white and non-white patients, or socioeconomic status. Neurological comorbidity was statistically significant for a decreased rate of decannulation (p = 0.0216). CONCLUSION: The 1.5LTR is a viable option for airway reconstruction with strengths derived from both the ssLTR and dsLTR. At our institution we have seen decannulation rates and operation specific decannulation rates with the 1.5LTR approaching our ssLTR. It has replaced the bulk of our dsLTRs, which we reserve for patients that have significant neurological deficits and cannot tolerate extended sedation. LEVEL OF EVIDENCE: 4.

Machine Learning for Accurate Intraoperative Pediatric Middle Ear Effusion Diagnosis.

OBJECTIVES: Misdiagnosis of acute and chronic otitis media in children can result in significant consequences from either undertreatment or overtreatment. Our objective was to develop and train an artificial intelligence algorithm to accurately predict the presence of middle ear effusion in pediatric patients presenting to the operating room for myringotomy and tube placement. METHODS: We trained a neural network to classify images as " normal" (no effusion) or "abnormal" (effusion present) using tympanic membrane images from children taken to the operating room with the intent of performing myringotomy and possible tube placement for recurrent acute otitis media or otitis media with effusion. Model performance was tested on held-out cases and fivefold cross-validation. RESULTS: The mean training time for the neural network model was 76.0 (SD ± 0.01) seconds. Our model approach achieved a mean image classification accuracy of 83.8% (95% confidence interval [CI]: 82.7-84.8). In support of this classification accuracy, the model produced an area under the receiver operating characteristic curve performance of 0.93 (95% CI: 0.91-0.94) and F1-score of 0.80 (95% CI: 0.77-0.82). CONCLUSIONS: Artificial intelligence-assisted diagnosis of acute or chronic otitis media in children may generate value for patients, families, and the health care system by improving point-of-care diagnostic accuracy. With a small training data set composed of intraoperative images obtained at time of tympanostomy tube insertion, our neural network was accurate in predicting the presence of a middle ear effusion in pediatric ear cases. This diagnostic accuracy performance is considerably higher than human-expert otoscopy-based diagnostic performance reported in previous studies.

Association of perioperative ibuprofen exposure with post-tonsillectomy bleeding requiring operative management.

INTRODUCTION: Pediatric tonsillectomy is one of the most common surgical procedures performed in the United States. The safety of ibuprofen use after surgery is debated given concern for increased bleeding. The primary objective of this study was to compare the rate of post-tonsillectomy hemorrhage requiring operative management in patients who received ibuprofen perioperatively vs. patients who did not. METHODS: Retrospective cohort study of patients 0-18 years old who underwent tonsillectomy with or without adenoidectomy (T&A) with recorded inpatient medication administration data at a single tertiary care institution from 1/2005-1/2019. The association between perioperative medication administration and return to operating room (OR) for control was evaluated using multivariable logistic regression adjusted for patient demographics and operative indication. Secondary outcomes evaluated included the time to operative bleed when it occurred. RESULTS: A total of 4098 patients with a median age of 6 years old (IQR 4-10) underwent T&A over the study period. The overall rate of post-tonsillectomy hemorrhage requiring OR was 3.37% (n = 138/4098). After adjustment for confounders, the odds of bleeding requiring OR did not differ significantly between the ibuprofen (OR 1.16, 95% CI (0.76, 1.74), 3.55%, n = 41/1,156, p = 0.47) and non-ibuprofen groups (3.30%, n = 97/2942). The median time to bleeding requiring OR was postoperative day 6.5 (IQR6-8) in the ibuprofen group and day 6 (IQR 3-8) in the non-ibuprofen group. CONCLUSIONS: No difference in post-tonsillectomy hemorrhage requiring OR was observed between patients receiving perioperative ibuprofen versus those patients not receiving this medication. Additional research is required to definitively determine a safe dose and interval for ibuprofen administration following tonsillectomy.

Factors associated with frenotomy after a multidisciplinary assessment of infants with breastfeeding difficulties.

OBJECTIVE: Frenotomy for ankyloglossia has increased nearly 10-fold over the past few decades despite insufficient evidence that the procedure improves breastfeeding outcomes. There is no universally accepted method for identifying patients who may benefit from the procedure. The objective of this study is to determine if comprehensive feeding evaluations and targeted interventions can identify children who should undergo procedures, and to identify factors associated with lip or tongue frenotomy to treat breastfeeding difficulties. METHODS: This observational quality improvement study followed infant-mother dyads between March 2018 and December 2019 referred to our tertiary care center for breastfeeding difficulties. Speech and language pathologists performed comprehensive feeding evaluations on infants prior to surgical consultation for frenotomy. Infants' oral anatomy and function and their ability to breast and bottle feed were assessed, and techniques for mothers to address feeding difficulties without a procedure were offered prior to surgical consultation. Infants either found success over a short observation period or underwent procedures (lip and/or tongue frenotomy). RESULTS: 153 patients (mean age 47.0 days (stdev 39.0 days, 56.2% male) were referred for surgical division of the lingual frenulum. Following development of a program utilizing pediatric speech language pathologists to perform feeding evaluations prior to surgical consultation, 69.9% of patients subsequently did not undergo surgical procedures. 11 (23.9%) underwent labial frenotomy alone and 30 (65.2%) underwent both labial and lingual frenotomies. Frenotomy was associated with significantly increased worry subscale of the Feeding Swallow Impact Survey (FSIS) and decreased mean Breastfeeding Self Efficacy Scale score (p = 0.0001, p = 0.006, respectively). Tongue appearance was significantly associated with having a procedure, while lip appearance was not. The Bristol Breastfeeding Assessment Tool (BBAT) was lower in children undergoing tongue and/or lip frenotomy (p = 0.0006), while the Hazelbaker Assessment Tool for Lingual Frenulum Function (HATLFF) appearance and function scores were lower in children undergoing lingual frenotomy with or without lip frenotomy (p = 0.0008, p = 0.0009, respectively). CONCLUSIONS: The majority of patients referred for ankyloglossia may benefit from nonsurgical intervention strategies based on findings from comprehensive feeding evaluation. Frenotomy is associated with higher maternal feeding-related worry and reduced breastfeeding self-efficacy scores. While tongue appearance is associated with frenotomy, functional assessment is critical for identifying patients who may also benefit from lip frenotomy.

Asymptomatic COVID-19 infection in a child with nasal foreign body.

While children, particularly infants, are susceptible to severe and critical COVID-19 disease, over 55% of pediatric cases are present in asymptomatic or mildly symptomatic children. Aerosolized SARS-CoV-2 viral particles remain viable for up to 3 hours, raising concern about risk to healthcare workers during aerosol generating procedures (APGs) in the airway and nasopharynx. Herein we describe the first case of a nasal foreign body in an asymptomatic child with SARS-CoV-2 infection. We discuss management of this child and highlight the importance of considering asymptomatic infection and preoperative testing when planning procedures of the airway in the COVID-19 era.

Update on hypoglossal nerve stimulation in children with down syndrome and obstructive sleep apnea.

OBJECTIVES/HYPOTHESIS: Hypoglossal nerve (HGN) stimulation is a novel therapy for obstructive sleep apnea (OSA) in adults. Its efficacy and safety in children with Down syndrome (DS) was previously reported in a preliminary case series of six adolescents. STUDY DESIGN: Case series. METHODS: Twenty nonobese children and adolescents (aged 10-21 years) with DS and severe OSA (apnea-hypopnea index [AHI] >10 and <50 events/hr) despite prior adenotonsillectomy were enrolled. Participants had failed a trial of continuous positive airway pressure therapy and underwent sleep endoscopy confirming surgical candidacy. The primary outcome was to assess safety and monitor for adverse events. Secondary outcomes included efficacy in reducing AHI (% reduction in AHI), adherence to therapy, and change in a validated quality-of-life instrument, the OSA-18 survey. RESULTS: All 20 children (median age = 16.0 years [interquartile range = 13-17 years], 13 male) were implanted with no long-term complications. We report two interval adverse events, both of which were corrected with revision surgery. Twenty participants completed the 2-month polysomnogram, with median percent reduction in titration AHI of 85% (interquartile range = 75%-92%). The median nightly usage for these children was 9.21 hours/night. There was a median change in the OSA-18 score of 1.15, indicating a moderate, yet significant, clinical change. CONCLUSIONS: HGN stimulation was safe and effective in the study population. Two minor surgical complications were corrected surgically. Overall, these data suggest that pediatric HGN stimulation appears to be a safe and effective therapy for children with DS and refractory severe OSA. LEVEL OF EVIDENCE: 4 Laryngoscope, 130:E263-E267, 2020.

Vagal stimulation and laryngeal electromyography for recurrent laryngeal reinnervation in children.

Ansa-to-recurrent laryngeal nerve (ANSA-RLN) reinnervation procedures are now often first-line treatments for some children with unilateral vocal fold immobility. Although many describe that children with prolonged denervation and true vocal fold atrophy should not undergo this procedure, there has been no gold-standard means of identifying true denervation. Here, we describe a novel technique using evoked vagal electromyography to predict degree of chronic nerve injury prior to recurrent laryngeal nerve reinnervation in children. This is a simple, readily available technique that may play an important role in predicting likelihood of success with pediatric ANSA-RLN reinnervation. Laryngoscope, 130:747-751, 2020.

Creation of Laryngeal Grafts from Primary Human Cells and Decellularized Laryngeal Scaffolds.

Current reconstruction methods of the laryngotracheal segment fail to replace the complex functions of the human larynx. Bioengineering approaches to reconstruction have been limited by the complex tissue compartmentation of the larynx. We attempted to overcome this limitation by bioengineering laryngeal grafts from decellularized canine laryngeal scaffolds recellularized with human primary cells under one uniform culture medium condition. First, we developed laryngeal scaffolds which were generated by detergent perfusion-decellularization over 9 days and preserved their glycosaminoglycan content and biomechanical properties of a native larynx. After subcutaneous implantations in rats for 14 days, the scaffolds did not elicit a CD3 lymphocyte response. We then developed a uniform culture medium that strengthened the endothelial barrier over 5 days after an initial growth phase. Simultaneously, this culture medium supported airway epithelial cell and skeletal myoblast growth while maintaining their full differentiation and maturation potential. We then applied the uniform culture medium composition to whole laryngeal scaffolds seeded with endothelial cells from both carotid arteries and external jugular veins and generated reendothelialized arterial and venous vascular beds. Under the same culture medium, we bioengineered epithelial monolayers onto laryngeal mucosa and repopulated intrinsic laryngeal muscle. We were then able to demonstrate early muscle formation in an intramuscular transplantation model in immunodeficient mice. We supported formation of three humanized laryngeal tissue compartments under one uniform culture condition, possibly a key factor in developing complex, multicellular, ready-to-transplant tissue grafts. Impact Statement For patients undergoing laryngectomy, no reconstruction methods are available to restore the complex functions of the human larynx. The first promising preclinical results have been achieved with the use of biological scaffolds fabricated from decellularized tissue. However, the complexity of laryngeal tissue composition remains a hurdle to create functional viable grafts, since previously each cell type requires tailored culture conditions. In this study, we report the de novo formation of three humanized laryngeal tissue compartments under one uniform culture condition, a possible keystone in creating vital composite tissue grafts for laryngeal regeneration.

Comparison of Ibuprofen vs Acetaminophen and Severe Bleeding Risk After Pediatric Tonsillectomy: A Noninferiority Randomized Clinical Trial.

Importance: Ibuprofen is an effective analgesic after tonsillectomy alone or tonsillectomy with adenoidectomy, but concerns remain about whether it increases postoperative hemorrhage. Objective: To investigate the effect of ibuprofen compared with acetaminophen on posttonsillectomy bleeding (PTB) requiring surgical intervention in children. Design, Setting, and Participants: A multicenter, randomized, double-blind noninferiority trial was conducted at 4 tertiary medical centers (Massachusetts Eye and Ear Infirmary, Boston; Naval Medical Center, San Diego, California; Naval Medical Center, Portsmouth, Virginia; Madigan Army Medical Center, Tacoma, Washington). A total of 1832 children were assessed for eligibility (presence of sleep-disordered breathing or obstructive sleep apnea, adenotonsillar hypertrophy, or infectious tonsillitis undergoing extracapsular tonsillectomy by electrocautery). Of these, 1091 were excluded because they did not meet eligibility criteria (n = 681) or refused to participate (n = 410); thus, 741 children aged 2 to 18 years undergoing tonsillectomy alone or tonsillectomy with adenoidectomy were enrolled between May 3, 2012, and January 20, 2017. Interventions: Participants were randomized to receive ibuprofen, 10 mg/kg (n = 372), or acetaminophen, 15 mg/kg (n = 369), every 6 hours for the first 9 postoperative days. Main Outcomes and Measures: Rate and severity of posttonsillectomy bleeding were recorded using a postoperative bleeding severity scale: type 1 (bleeds that were observed at home or evaluated in the emergency department without further intervention), type 2 (bleeds that required readmission for observation), and type 3 (bleeds that required a return to the operating room for control of hemorrhage). Type 3 bleeding was the main outcome measure. The noninferiority margin was set at 3%, and modified intention-to-treat analysis was used. Results: Of the 741 children enrolled, 688 children (92.8%) (median [interquartile range] age, 5 [4] years; 366 boys [53.2%]) received the study medication and were included in a modified intention-to-treat analysis. The rate of bleeding requiring operative intervention was 1.2% in the acetaminophen group and 2.9% in the ibuprofen group (difference, 1.7%; 97.5% CI upper limit, 3.8%; P = .12 for noninferiority). There were no significant adverse events or deaths. Conclusions and Relevance: This study could not exclude a higher rate of severe bleeding in children receiving ibuprofen after tonsillectomy alone or tonsillectomy with adenoidectomy. This finding should be considered when selecting a postoperative analgesic regimen. Further studies are needed to understand if bleeding risk is affected when ibuprofen is used for a shorter duration or in combination with acetaminophen for postoperative analgesia. Trial Registration: ClinicalTrials.gov identifier: NCT01605903.

Analysis of Vocal Fold Motion Impairment in Neonates Undergoing Congenital Heart Surgery.

IMPORTANCE: Vocal fold motion impairment (VFMI) is a known risk factor following congenital heart surgery (CHS). The impact of this diagnosis on utilization and outcomes is unknown. OBJECTIVE: To evaluate the cost, postprocedure length of stay (PPLOS), and outcomes for neonates with VFMI after CHS. DESIGN, SETTING, AND PARTICIPANTS: A cross-sectional analysis of the 2012 Kids' Inpatient Database (KID) of neonates who underwent CHS was carried out. The KID is an administrative data set of patients, aged 20 years or younger, and contains data on more than 10 million hospitalizations from 44 states. The KID is limited to inpatient hospitalization and contains discharge summary level of data. Patients were limited to those who were born during the hospitalization and those who were aged 28 days or younger at the time of admission for CHS. A weighted total of 4139 neonates who underwent CHS were identified, of which 3725 survived. The proportion of neonates diagnosed with VFMI was 264 (6.92%) of 3725. EXPOSURES: Congenital heart surgery. MAIN OUTCOMES AND MEASURES: Cost of inpatient hospital stay, postprocedure length of stay, odds of pneumonia, gastrostomy tube placement, and tracheostomy tube placement. Risk-adjusted generalized linear models examined differences in cost and PPLOS between neonates who underwent CHS and were diagnosed with VFMI and those who were not. Risk-adjusted logistic regression compared the odds of selected outcomes (gastrostomy, tracheostomy, pneumonia). Models were weighted to provide national estimates. RESULTS: Of 3725 neonates (aged 0-28 days), 2203 (59.1%) were male and 1517 (40.7%) were female. Neonates diagnosed with VFMI had significantly higher total cost by $34 000 (95% CI, 2200-65 000) and PPLOS by 9.1 days (95% CI, 4.6-13.7) compared with those who did not. When PPLOS was included as a covariate in the model for cost, presence of VFMI was no longer significant. There were no differences in odds of pneumonia, gastrostomy, or tracheostomy. CONCLUSIONS AND RELEVANCE: Vocal fold motion impairment after CHS was associated with significant increases in cost owing to increased PPLOS. These findings provide a foundation to further investigate standardized screening for VFMI following CHS; early identification and treatment may decrease cost and PPLOS.

Modified surgical approach to hypoglossal nerve stimulator implantation in the pediatric population.

Upper airway stimulation with the hypoglossal nerve stimulator is a promising treatment modality for severe obstructive sleep apnea in carefully selected patients with Down syndrome. The pediatric population presents a greater variety in body habitus, including thorax size. A modified surgical approach, utilizing a medially placed, single chest incision, instead of two separate chest incisions, provides an alternative that is particularly useful for pediatric patients with small stature. As this technology is evaluated for Food and Drug Administration clearance in the pediatric population, it is important to consider modifications in surgical technique, partnering prior surgical experience with the technical support of company representatives. Laryngoscope, 128:1490-1492, 2018.

Hypoglossal Nerve Stimulation in Adolescents With Down Syndrome and Obstructive Sleep Apnea.

IMPORTANCE: Obstructive sleep apnea (OSA) affects up to 60% of children with Down syndrome (DS) and may persist in half of patients after adenotonsillectomy. Children with DS who have persistent OSA often do not tolerate treatment with positive pressure airway support devices or tracheotomy for their residual moderate to severe OSA. The hypoglossal nerve stimulator is an implantable device that delivers an electrical impulse to anterior branches of the hypoglossal nerve in response to respiratory variation, resulting in tongue base protrusion that alleviates upper airway obstruction in adults. OBJECTIVE: To determine whether hypoglossal nerve stimulation is safe and effective in children with DS. DESIGN, SETTING, AND PARTICIPANTS: Case series of the first 6 adolescents with DS to undergo hypoglossal nerve stimulator implantation. Participants were 6 children and adolescents (12-18 years) with DS and severe OSA (apnea hypopnea index [AHI] > 10 events/h) despite prior adenotonsillectomy. INTERVENTION: Inspire hypoglossal nerve stimulator placement. MAIN OUTCOMES AND MEASURES: Patients were monitored for adverse events. Adherence to therapy was measured by hours of use recorded by the device. Efficacy was evaluated by comparing AHI and OSA-18, a validated quality-of-life instrument, scores at baseline and follow-up. RESULTS: In 6 patients (4 male, 2 female; aged 12-18 years), hypoglossal nerve stimulator therapy was well tolerated (mean use, 5.6-10.0 h/night) and effective, resulting in significant improvement in OSA. At 6- to 12-month follow-up, patients demonstrated a 56% to 85% reduction in AHI, with an overall AHI of less than 5 events/h in 4 children and less than 10 events/h in 2 children. Children also demonstrated a clinically significant improvement (mean [SD] overall change score, 1.5 [0.6]; range, 0.9-2.3) on the OSA-18, a validated quality-of-life instrument. CONCLUSIONS AND RELEVANCE: Hypoglossal nerve stimulation was well tolerated and effective in the study population, representing a potential therapeutic option for patients with DS and refractory OSA after adenotonsillectomy who are unable to tolerate positive pressure airway devices. TRIAL REGISTRATION: clinicaltrials.gov Identifier: NCT2344108.

Hypoglossal Nerve Stimulator Implantation in an Adolescent With Down Syndrome and Sleep Apnea.

Obstructive sleep apnea (OSA) is more common in children with Down syndrome, affecting up to 60% of patients, and may persist in up to 50% of patients after adenotonsillectomy. These children with persistent moderate to severe OSA require continuous positive airway pressure, which is often poorly tolerated, or even tracheotomy for severe cases. The hypoglossal nerve stimulator is an implantable device that produces an electrical impulse to the anterior branches of the hypoglossal nerve, resulting in tongue protrusion in response to respiratory variation. It is an effective treatment of sleep apnea in select adult patients because it allows for alleviation of tongue base collapse, improving airway obstruction. Herein we describe the first pediatric hypoglossal nerve stimulator implantation, which was performed in an adolescent with Down syndrome and refractory severe OSA (apnea hypopnea index [AHI]: 48.5 events/hour). The patient would not tolerate continuous positive airway pressure and required a long-standing tracheotomy. Hypoglossal nerve stimulator therapy was well tolerated and effective, resulting in significant improvement in the patient's OSA (overall AHI: 3.4 events/hour; AHI: 2.5-9.7 events/hour at optimal voltage settings depending on sleep stage and body position). Five months after implantation, the patient's tracheotomy was successfully removed and he continues to do well with nightly therapy.

A case of pediatric parapharyngeal space ganglioneuroma.

Ganglioneuromas are rare, benign neoplasms derived from sympathetic neural crest progenitor cells. In the pediatric population, ganglioneuromas usually develop in the mediastinum or retroperitoneum. We report the case of a 3-year-old boy who presented with a painless enlarging neck mass, which was found to be a parapharyngeal space ganglioneuroma that extended to the skull base. We summarize the current principles regarding the diagnostic workup and treatment of these neoplasms, and we briefly review the literature.

Laryngeal mask airway may result in false negative imaging for carotid medialization: A case report.

Chromosome 22q11.2 microdeletions result in multiple congenital abnormalities, including an increased risk of carotid medialization, which is an important consideration for preoperative planning in children with velopharyngeal insufficiency. Preoperative imaging of the neck vasculature is recommended. Here we describe a case in which a child had negative imaging studies despite the presence of a medialized carotid artery on physical examination, likely secondary to the supraglottic airway use during sedated imaging, which displaced the carotid laterally. The type of airway used should be a consideration for children undergoing sedated imaging prior to pharyngeal procedures.