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OBJECTIVE: The objective of this study is to present a novel clinical manifestation of COVID-19 with characteristic endoscopic laryngeal findings. A group of patients who reported similar symptoms, displayed akin laryngoscopic features, and received appropriate treatment is analyzed. Endoscopic images are provided and the pattern of this entity is discussed.
METHODS: This single-center descriptive analysis of a case series was performed in the General Hospital of Volos (Greece), during a 6-month period (from April 2022 to September 2022). Twenty-three patients who suffered from COVID-19 and were simultaneously diagnosed with acute laryngitis were enrolled.
METHODS: Demographic data, clinical and endoscopic findings, laboratory results, and treatment courses were recorded. Descriptive statistics were performed with the statistical package SPSS (IBM Corp. Released 2017. IBM SPSS Statistics for Windows, Version 25.0. Armonk, NY: IBM Corp.).
RESULTS: The majority of the patients were male and fully vaccinated, as defined by Greek legislation at the time. None of them was a smoker. All patients were infected with Severe Acute Respiratory Syndrome Coronavirus 2 for the first time and presented with acute odynophagia. The characteristic endoscopic finding was an erythematous larynx with white undetachable lesions mainly in the supraglottic area. Pooling of saliva in the pyriform fossae was an independent predicting factor for patients\' hospitalization (P < 0.001). None of the patients required intubation or tracheostomy and all responded to the systemic treatment with corticosteroids and antibiotics.
CONCLUSIONS: COVID-19-induced laryngitis should be considered in any patient with positive COVID-19 who complains of acute odynophagia. Fiberoptic laryngoscopy is necessary to confirm the diagnosis. In our series, timely initiation of treatment minimized the need to secure the airway and ensured a favorable prognosis.

BACKGROUND: Antimicrobial resistance (AMR) is an important global public health concern in adults and children. Laryngotracheobronchitis (croup) is a common acute respiratory infection (ARI) among children, most often caused by a virus, and should not be treated with antibiotics. Reducing the usage of unnecessary antibiotics in ARI using an antimicrobial stewardship program (ASP) is an effective measure against AMR in children. This study investigates the antibiotic prescription pattern in pediatric patients with laryngotracheobronchitis in Korea. Our results will be useful to improve the ASP.
METHODS: The data were obtained from the government agency Health Insurance Review and Assessment Service. We analyzed outpatient prescriptions issued to children ≤ 5 years of age with a first-listed diagnosis code for laryngotracheobronchitis, i.e., International Classification of Disease, 10th Revision, code J050 (croup), J040 (laryngitis), or J041 (tracheitis), during 2017-2020. For each prescription, demographic information and information about medical facilities visited (type of hospital, specialty of physician, location of hospital) were extracted. The overall antibiotic prescription rate was subsequently estimated, and multivariable analysis was conducted to determine the associated factors of antibiotic prescription. Prescribed antibiotics were described and classified into extended-spectrum penicillins, cephalosporin, and macrolides.
RESULTS: Of 2,358,194 prescriptions reviewed, 829,172 (35.2%) contained antibiotics. In the multivariable analysis, management in a hospital was the strongest factor associated with antibiotic prescription (adjusted odds ratio [aOR], 22.33; 95% confidence interval [CI], 20.87-23.89; P < 0.001), followed by management in a clinic (aOR, 12.66; 95% CI, 11.83-13.54; P < 0.001) and management in a general hospital (aOR, 8.96; 95% CI, 8.37-9.59; P < 0.001). Antibiotic prescription was also significantly associated with patients who were ≤ 2 years of age, managed by a pediatric specialist, and treated at a hospital located in a non-metropolitan region. Overall, extended-spectrum penicillins were the most frequently prescribed (18.6%) antibiotics, followed by cephalosporins (9.4%) and macrolides (8.5%).
CONCLUSIONS: The results of our study suggest that ASPs need to focus on physicians in hospitals, clinics, general hospitals, and pediatric specialties. Providing education programs to these groups to increase awareness of AMR and appropriate antibiotics use could be effective ASP policy and may help to reduce unnecessary prescriptions of antibiotics for laryngotracheobronchitis among pediatric patients and therefore potentially AMR in children in Korea.

OBJECTIVE: To describe the occurrence of post-extubation laryngitis, analyze its one-year evolution, and correlate laryngeal lesions with clinical outcomes.
METHODS: Retrospective study including children up to 13 years old at a tertiary hospital between March 2020 and March 2022 with diagnosis of post-extubation laryngitis confirmed by endoscopic examination. Exclusion criteria were prior history of intubation or anatomical airway abnormalities. Medical records were reviewed to characterize patients, underlying diagnosis, laryngeal lesions, treatment, and outcomes at 12-month follow-up.
RESULTS: The study included 38 endoscopically confirmed post-extubation laryngitis cases, corresponding to 86.4% of suspected cases. The mean age was 13.24 months, and 60.5% were male. Acute respiratory failure was the leading cause of intubation. Initial treatment was clinical, and initial diagnosis was defined by nasopharynoglaryngoscopy and/or Microlaryngoscopy and Bronchoscopy (MLB) findings. Initial diagnostic MLB was performed in 65.7% of the patients. Approximately half (53%) of the patients exhibited moderate or severe laryngeal lesions. When compared to mild cases, these patients experienced a higher rate of extubation failures (mean of 1.95 vs. 0.72, p = 0.0013), underwent more endoscopic procedures, and faced worse outcomes, such as the increased need for tracheostomy (p = 0.0001) and the development of laryngeal stenosis (p = 0.0450). Tracheostomy was performed in 14 (36.8%) children. Patients undergoing tracheostomy presented more extubation failures and longer intubation periods. Eight (21%) developed laryngeal stenosis, and 17 (58.6%) had complete resolution on follow-up.
CONCLUSIONS: Post-extubation laryngitis is a frequent diagnosis among patients with clinical symptoms or failed extubation. The severity of laryngeal lesions was linked to a less favorable prognosis observed at one-year follow-up. Otolaryngological evaluation, follow-up protocols, and increased access to therapeutic resources are essential to manage these children properly.
METHODS: Level 4.

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Laryngopharyngeal reflux disease (LPRD) is an inflammatory condition in the laryngopharynx and upper aerodigestive tract mucosa caused by reflux of stomach contents beyond the esophagus. LPRD commonly presents with sym-ptoms such as hoarseness, cough, sore throat, a feeling of throat obstruction, excessive throat mucus. This complex condition is thought to involve both reflux and reflex mechanisms, but a clear understanding of its molecular mechanisms is still lacking. Currently, there is no standardized diagnosis or treatment protocol. Therapeutic strategies for LPRD mainly include lifestyle modifications, proton pump inhibitors and endoscopic surgery. This paper seeks to provide a comprehensive overview of the existing literature regarding the mechanisms, patho-physiology and treatment of LPRD. We also provide an in-depth exploration of the association between LPRD and gastroesophageal reflux disease.

OBJECTIVE: To develop and validate the Reflux Sign Assessment-10 (RSA-10) for documenting the physical findings of laryngopharyngeal reflux disease (LPRD).
METHODS: Patients with LPRD at the hypopharyngeal-esophageal multichannel intraluminal impedance-pH monitoring and asymptomatic individuals were consecutively recruited from two European hospitals. Three experienced otolaryngologists rated RSA-10 in patients and controls for assessing internal validity. RSA-10 was rated within a 7-day period to assess test-retest reliability. Internal consistency was measured using Cronbach\'s α in patients and controls. Convergent validity was evaluated through a correlation analysis between RSA-10 and Reflux Finding Score (RFS). Interrater reliability was evaluated by comparing the RSA-10 evaluations of the three otolaryngologists through Fleiss kappa. Pre- to posttreatment change of RSA-10 was evaluated to assess responsiveness to change. The RSA-10 thresholds were examined by receiver operating characteristic analysis.
RESULTS: Fifty-five patients completed the pre- to posttreatment evaluations from January 2020 to December 2023. A total of 115 asymptomatic individuals completed the study. RSA-10 reported high internal consistency reliability (α = 0.822) and test-retest reliability (rs = 0.725). The RSA-10 scores of patients were significantly higher than those of controls (p = 0.001), suggesting high internal validity. RSA-10 was significantly correlated with the RFS (rs = 0.771). The interrater reliability was adequate for sub- and total RSA-10 scores (k = 0.708). RSA-10 significantly improved from baseline to 3-month posttreatment (p = 0.001). An RSA-10 > 13 may be suggestive of LPRD. Both RSA-10 > 13 and Reflux Symptom Score-12 > 11 were associated with a sensitivity of 92.7% and a specificity of 97.3%.
CONCLUSIONS: The RSA-10 is a reliable and valid clinical instrument for documenting the most prevalent laryngeal and extra-laryngeal findings associated with LPRD.
METHODS: 3 Laryngoscope, 134:3981-3988, 2024.

Laryngeal mycosis, a condition often overlooked in systemically immunocompetent individuals, requires heightened clinical vigilance for accurate diagnosis. The disease mimics symptoms of other laryngeal conditions such as gastroesophageal reflux, granulomatous disease, keratosis, and glottic malignancies, with risk factors including prolonged use of antibiotics, inhaled steroids, and smoking. Clinically, it presents with variable symptoms including hoarseness, and occasionally pain, dysphagia, and odynophagia. Diagnosis involves the observation of hyperkeratosis, notably when intraepithelial neutrophils are present, prompting further investigation for fungal elements through specialized staining. Effective management encompasses prolonged systemic antifungal treatment and the elimination of predisposing factors to prevent recurrence or treatment failure. Despite its potential to mimic a range of laryngeal diseases, laryngeal mycosis remains a less considered differential diagnosis. This is compounded by the commonality of risk factors in the general population, including prolonged antibiotic use, inhaled steroid therapy, and smoking habits, which may predispose individuals to fungal infections of the larynx. Furthermore, the necessity for a high index of suspicion and specialized diagnostic techniques, such as the identification of hyperkeratosis with intraepithelial neutrophils through biopsy and specialized staining for fungal elements, underscores the complexity of diagnosing this condition. The rationale for documenting this case report is multifaceted, primarily focusing on the fact that laryngeal mycosis is rare among immunocompetent patients leading to under-recognition of laryngeal mycosis in systemically immunocompetent individuals and the diagnostic challenges it presents. Additionally, the documentation seeks to emphasize the critical need for comprehensive treatment approaches, including prolonged systemic antifungal therapy and the identification and elimination of predisposing factors, to ensure effective management and prevent recurrence.

OBJECTIVE: To make recommendations on the diagnosis and treatment of post-extubation laryngitis (PEL) in children with or without other comorbidities.
METHODS: A three-iterative modified Delphi method was applied. Specialists were recruited representing pediatric otolaryngologists, pediatric and neonatal intensivists. Questions and statements approached topics encompassing definition, diagnosis, endoscopic airway evaluation, risk factors, comorbidities, management, and follow-up. A consensus was defined as a supermajority >70%.
RESULTS: Stridor was considered the most frequent symptom and airway endoscopy was recommended for definitive diagnosis. Gastroesophageal reflux and previous history of intubation were considered risk factors. Specific length of intubation did not achieve a consensus as a risk factor. Systemic corticosteroids should be part of the medical treatment and dexamethasone was the drug of choice. No consensus was achieved regarding dosage of corticosteroids, although endoscopic findings help defining dosage and length of treatment. Non-invasive ventilation, laryngeal rest, and use of comfort sedation scales were recommended. Indications for microlaryngoscopy and bronchoscopy under anesthesia were symptoms progression or failure to improve after the first 72-h of medical treatment post-extubation, after two failed extubations, and/or suspicion of severe lesions on flexible fiberoptic laryngoscopy.
CONCLUSIONS: Management of post-extubation laryngitis is challenging and can be facilitated by a multidisciplinary approach. Airway endoscopy is mandatory and impacts decision-making, although there is no consensus regarding dosage and length of treatment.

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