Airway Disorders Research Articles

The Inhibitory Effect of Hedera helix and Coptidis Rhizome Mixture in the Pathogenesis of Laryngopharyngeal Reflux: Cleavage of E-Cadherin in Acid-Exposed Primary Human Pharyngeal Epithelial Cells

Laryngopharyngeal reflux disease (LPRD) is a prevalent upper airway disorder characterized by inflammation and epithelial damage due to the backflow of gastric contents. Current treatments, primarily proton pump inhibitors (PPIs), often show variable efficacy, necessitating the exploration of alternative or adjunctive therapies. This study investigates the therapeutic potential of a mixture of Hedera helix and Coptidis rhizome (HHCR) in mitigating the pathophysiological mechanisms of LPRD. Using an in vitro model of human pharyngeal epithelial cells exposed to acidic conditions, we observed that acid exposure significantly increased the expression of adenosine A3 receptor (adenosine A3) and matrix metalloproteinase-7 (MMP-7), leading to E-cadherin cleavage and compromised epithelial integrity. Treatment with the HHCR mixture effectively suppressed adenosine A3 expression and MMP-7 activity, thereby reducing E-cadherin cleavage and preserving cellular cohesion. These results highlight the HHCR mixture’s ability to modulate the adenosine A3–MMP-7–E-cadherin pathway, suggesting its potential as a valuable adjunctive therapy for LPRD, particularly for patients unresponsive to conventional PPI treatment. This study provides new insights into the molecular interactions involved in LPRD and supports further clinical evaluation of HHCR as a complementary treatment option.

A multidimensional approach to the management of patients in prolonged weaning from mechanical ventilation - the concept of treatable traits - a narrative review.

Background Established structured weaning approaches, which are effective for patients in simple and difficult weaning, are often not appropriate for patients undergoing prolonged weaning. Addressing the complexity of weaning failure requires personalized precision medicine. The therapeutic concept of Treatable Traits (TTs) has been proposed as a new paradigm for the management of chronic respiratory diseases. It is based on a multidimensional assessment of specific characteristics, which can be addressed by specific interventions that go beyond traditional diagnostic criteria. The concept is increasingly adopted for other complex diseases. Summary This is a narrative review and an expert opinion on the development of a concept of TTs for patients undergoing prolonged weaning. The proposed TTs are based on a systematic review of risk factors for prolonged weaning, an analysis of claims data to assess risk factors within 96 hours of IMV onset and data from the WEAN-SAFE study. A multidisciplinary team identified clinically important TTs and determined appropriate interventions. The following TTs have been identified: Airway disorders and complications associated with tracheostomy or intubation, such as airway obstruction, strictures or tracheomalacia, infectious aspects, anxiety, depression, delirium, post-traumatic stress disorder, anemia, pulmonary and cardio-renal disease. The multidimensional holistic approach also includes tailored sedation and pain management, nutritional therapy, early mobilization and physiotherapy. Key message We propose a framework of relevant considerations for a multidimensional approach to the management of patients undergoing prolonged weaning that supports the regain of respiratory capacity, reduces the respiratory load and thus could resolve the respiratory workload imbalance.

Salary Benchmarking for Voice-Specialized Speech-Language Pathologists

Purpose: This study aimed to understand how salaries of voice and upper airway–specialized speech-language pathologists (SLPs) differ from medical SLPs based on prevailing wage data and to give clinicians resources to better negotiate their salary and benefits. Method: A nationwide survey of voice-specialized SLPs was disseminated via various online platforms including American Speech-Language-Hearing Association Special Interest Group 3, Instagram, voice-specialized Facebook groups, and e-mail. Data were collected via REDCap. The survey investigates SLPs' salary, benefits, experience, clinical responsibilities, and profit generated through Current Procedural Terminology codes. Two separate analyses were completed. First, annual salary, as reported by participants, was compared against annual salary, as estimated by prevailing wage data. Second, a multiple regression driver analysis was completed to identify significant predictors of wage level within our sample. Outliers in the sample were removed using the Difference in Fits procedure. Results: A total of 111 participant surveys were included for analysis. Our data demonstrate that, between participant data and prevailing wage data, salaries for voice and upper airway disorders (VUAD) SLPs are significantly higher in the West, Midwest, and Southern regions. There is no significant difference in the Northeast. Several factors proved statistically significant predictors of increased salaries including years of work ( p ≤ .0001), cost of living ( p = .0030), and work in multidisciplinary setting ( p = .0223). Conclusions: As practitioners navigate negotiations for equitable compensation, leveraging localized salary data and emphasizing the value of specialized expertise may prove instrumental. Moreover, advocating for employer-sponsored professional development opportunities and benefits can enhance the overall well-being and professional satisfaction of VUAD SLPs, ensuring optimal delivery of care within this specialized field.

Building a Community for Clinical Fellows in Voice and Upper Airway Disorders

Building a Community for Clinical Fellows in Voice and Upper Airway Disorders

Retinoic Acid (RA): A Critical Immunoregulatory Molecule in Asthma and Allergies.

Asthma and allergies are chronic inflammatory disorders that are triggered owing to aberrant responses of the immune system against typically innocent environmental substances. Retinoic acid (RA) represents a biologically active metabolite of vitamin A (VA) and high-affinity ligand for RA receptor (RAR) that is implicated in a wide variety of biological processes, including cell proliferation, differentiation, apoptosis, organogenesis, reproduction, and immune responses. In the immune system, RA contributes to the induction of regulatory T (Treg) cells, adhesion molecules required for homing of B and T cells in the gut, and tolerance. Noteworthy, RA has a pivotal role in maintaining the balance of Th17-Treg cells and is also indispensable for appropriate responses of T helper (Th) cells. This mini-review article intends to expose the immune functions of RA, with an emphasis on the enzymatic pathways converting VA into RA and its receptor-dependent actions in asthma and allergies. Recent findings have depicted that RA levels are reduced in asthma and allergies and that treatment with RA alleviates allergy symptoms and airway inflammation. RA also modulates allergic airway disorders by inhibiting Th2/Th17 response and increasing Treg cells. Therefore, RA could be considered a novel and promising therapeutic agent to be studied and used for treating these diseases.

Prevention and alleviation of allergic rhinitis by oral administration of Lacticaseibacillus paracasei GOLDGUT-Lpc969.

Allergic rhinitis (AR) is a widespread upper airway disorder characterized by inflammation of the nasal passages. It is immunologically mediated via the hypersensitivity type I mechanism, which is primarily elicited by the immunoglobulin E (IgE)-linking allergen-induced imbalance of the Th2/Th1 immune response. Owing to the limited efficacy of current medications, probiotics have received attention for their potential in preventing and ameliorating AR. In this study, a Lacticaseibacillus paracasei strain, GOLDGUTLpc969 (Lpc969), isolated from the feces of healthy adults, was proven to be effective in preventing AR by LPA-induced RBL-2H3 in-vitro and OVA-induced AR mice in-vivo evaluation. The strain significantly attenuated the release of histamine and degranulation in LPS-induced RBL-2H3 cells. In the OVA-induced AR mice, L. paracasei GOLDGUT-Lpc969 also exhibited a significant decrease in disease indicators such as the disease activity index (DAI score), serum IgE, and serum histamine. Treatment with L. paracasei GOLDGUT-Lpc969 led to significant suppression of the Th2-related cytokines IL-4, IL-5, IL-6, IL-13, and TNF-α in the serum of mice. Furthermore, a comparison of the genomes of three previously reported AR-effective L. paracasei strains (including GOLDGUTLpc969) and one non-effective L. paracasei strain revealed that the gene K03671 may play a key role in alleviating AR symptoms. In conclusion, this study highlights the efficacy of L. paracasei GOLDGUT-Lpc969 in AR prevention by suppressing the Th2 immune response and proposes the potential involvement of the functional gene K03671 in ameliorating AR symptoms. Therefore, L. paracasei GOLDGUT-Lpc969 shows promise as a probiotic for preventing AR.

Breastfeeding Versus Bottle Feeding and Risk of Bronchial Asthma in Children in Tabuk Area, Saudi Arabia: A Cross-Sectional Study.

Introduction Asthma is a common chronic airway disorder, particularly among children in Saudi Arabia, with an increasing global prevalence. Limited epidemiological studies in the region indicate variable asthma rates, potentially influenced by factors such as modernization and environmental changes. Given the potential health benefits of breastfeeding, it is critical to investigate the relationship between type of feeding, and asthma risk. This study aims to assess the relationship between breastfeeding and bottle-feeding practices and the risk of developing asthma, as well as to evaluate how breastfeeding practices influence the severity of asthma among children in Tabuk, Saudi Arabia. Methods A cross-sectional study was conducted among children with bronchial asthma at King Salman Armed Forces Hospital in Tabuk City, Saudi Arabia. The study took place from June to August 2023 using convenient sampling. Data were collected through a validated, structured web-based questionnaire distributed to the parents of children with bronchial asthma. The analysis was performed using SPSS (IBM SPSS Statistics for Windows, Version 20.0. Armonk, NY: IBM Corp). Results The study comprised 103 participants, of whom 66 (64.1%) were breastfed. There was no significant association between the severity of asthma and breastfeeding practices, including the initiation time, duration, or the age at which formula milk was introduced, as well as the combination of breastfeeding with bottle feeding. However, paternal smoking was significantly associated with asthma (p = 0.003), with 78.5% of children with smoking fathers affected compared to 50% of those without smoking fathers. In the multivariate analysis, having a father employed in the health sector (p = 0.040) and a maternal age over 35 years (p = 0.026) were significantly associated with an increased risk of asthma. Other factors, such as the child's age, gender, birth order, monthly income, parental education, family size, type of accommodation, and maternal diet during pregnancy, did not demonstrate significant associations with asthma. Conclusion Our study underscores the significant role of paternal smoking and specific parental sociodemographic factors, such as having a father employed in the health sector and maternal age over 35 years, in influencing the risk of childhood asthma. While breastfeeding practices, including duration and method, were not significantly associated with asthma severity, understanding these key risk factors can aid in developing targeted interventions for asthma prevention and management.

In mouse model of mixed granulocytic asthma with corticosteroid refractoriness, Bronchom mitigates airway hyperresponsiveness, inflammation and airway remodeling

BackgroundAsthma is a heterogeneous, inflammatory disease with several phenotypes and endotypes. Severe asthmatics often exhibit mixed granulocytosis with reduced corticosteroid sensitivity. Bronchom is a newly developed Ayurvedic prescription medicine, indicated for the treatment of obstructive airway disorders. The purpose of the present study was to evaluate the in-vivo efficacy of Bronchom in mouse model of mixed granulocytic asthma with steroidal recalcitrance.MethodsHigh-performance thin layer chromatography (HPTLC) and Ultra-high performance liquid chromatography (UHPLC) were employed to identify and quantitate the phytometabolites present in Bronchom. The preclinical effectiveness of Bronchom was assessed in house dust mite (HDM) and Complete Freund’s adjuvant (CFA)-induced mixed granulocytic asthma model in mice. High dose of dexamethasone was tested parallelly. Specific-pathogen-free C57BL/6 mice were immunized with HDM and CFA and nineteen days later, they were intranasally challenged with HDM for four consecutive days. Then the mice were challenged with nebulized methacholine to evaluate airway hyperresponsiveness (AHR). Inflammatory cell influx was enumerated in the bronchoalveolar lavage fluid (BALF) followed by lung histology. Additionally, the concentrations of Th2 and pro-inflammatory cytokines was assessed in the BALF by multiplexed immune assay. The mRNA expression of pro-inflammatory cytokines and Mucin 5AC (MUC5AC) was also evaluated in the lung.ResultsHPTLC fingerprinting and UHPLC quantification of Bronchom revealed the presence of bioactive phytometabolites, namely, rosmarinic acid, gallic acid, methyl gallate, piperine, eugenol and glycyrrhizin. Bronchom effectively reduced AHR driven by HDM-CFA and the influx of total leukocytes, eosinophils and neutrophils in the BALF. In addition, Bronchom inhibited the infiltration of inflammatory cells in the lung as well as goblet cell metaplasia. Further, it also suppressed the elevated levels of Th2 cytokines and pro-inflammatory cytokines in the BALF. Similarly, Bronchom also regulated the mRNA expression of pro-inflammatory cytokines as well as MUC5AC in mice lungs. Reduced effectiveness of a high dose of the steroid, dexamethasone was observed in the model.ConclusionsWe have demonstrated for the first time the robust pharmacological effects of an herbo-mineral medicine in an animal model of mixed granulocytic asthma induced by HDM and CFA. The outcomes suggest the potential utility of Bronchom in severe asthmatics with a mixed granulocytic phenotype.

Novel approach for tracheal resection in Morquio a syndrome with end-stage critical airway obstruction: a UK case series

BackgroundMucopolysaccharidosis (MPS) type IVA is a rare lysosomal storage disorder caused by aberrations of the N-acetyl-galactosamine-6-sulfatase (GALNS) enzyme. MPS IVA is associated with a wide gamut of respiratory and airway disorders that manifest in a continuum of severity. In individuals exhibiting severe phenotypic expression, terminal stages of the disease frequently culminate in life-threatening, critical airway obstruction. These manifestations of end-stage disease are engendered by an insidious progression of multi-level airway pathologies, comprising of tracheomalacia, stenosis, tortuosity and 'buckling'. Historically, the management of end-stage airway disease has predominantly leaned towards palliative modalities. However, contemporary literature has posited that the potential benefits of tracheal resection with aortopexy, performed under cardiopulmonary bypass (CPB), may offer a promising therapeutic option. In this context, we report on outcomes from patients undergoing a novel approach to tracheal resection that is combined with manubrial resection, leading to improved airway calibre, obviating the requisition for CPB.ResultsIn this study, seven patients with severe MPS IVA exhibited clinical symptoms and radiological evidence indicative of advanced airway obstruction. All patients had a tracheal resection with a partial upper manubriectomy via transcervical approach, which did not require CPB. The surgical cohort consisted of 5 females and 2 males, the median age was 16 years (range 11-19) and the median height was 105.6cm (range 96.4-113.4). Postoperatively, significant improvements were seen in forced expiratory volume in 1 second (FEV1), with a mean increase of 0.68 litres (95% CI: 0.45-0.91; SD: 0.20). Notably, other spirometry variables also showed meaningful improvements, providing evidence of positive treatment effects. Furthermore, there were no major long-term complications, and the procedure resulted in a significant enhancement in patient-reported domains using PedsQL (version 4.0).ConclusionsThis study represents the largest case series to date, on tracheal resection in patients with severe MPS IVA. Our findings demonstrate the effectiveness of the transcervical approach with partial manubriectomy for improving respiratory function and quality of life for individuals with advanced airway obstruction. Tracheal resection presents a promising treatment modality for severe cases of MPS IVA. Successful outcomes rely on meticulous multidisciplinary assessment, judicious decision-making, and appropriate timing of tracheal surgery. Further research and long-term follow-up studies are warranted to validate the long-term efficacy and safety of this approach.

Role of digital education through smartphones in improving knowledge among asthma patients: A preliminary study.

Asthma is a chronic inflammatory airway disorder and is among the top ten causes of morbidity and mortality in Indonesia, highlighting the need for effective management strategies. This study aimed to evaluate changes in asthma knowledge levels before and after using the "Paru Sehat" smartphone application for digital education. A quasi-experimental study using a pre- and post-test design was conducted over three months at the outpatient clinic of Universitas Sumatera Utara Hospital, Medan, Indonesia, among asthma patients aged over 18 years. The patients completed the Patient Asthma Knowledge Questionnaire (PAKQ) before installing the "Paru Sehat" application to establish baseline knowledge. Once a week, patients received reminders to access materials covering an asthma overview, peak flow meter use, medication differences, and management techniques. After four weeks of intervention, the participants' knowledge was reassessed using the PAKQ. Data were analyzed using either paired Student's t-test or Wilcoxon test to assess the improvement in knowledge. The results showed increases in knowledge about asthma in general, asthma triggers, and asthma diagnosis domains, with the median score in each domain rising by one point (p=0.003, p=0.001, and p=0.002, respectively). The asthma management domain exhibited the largest change, with a median increase of two points (p<0.001). The total scores increased by an average of five points (p<0.001), indicating an overall improvement in patient knowledge about asthma. The "Paru Sehat" application demonstrated significant potential in enhancing asthma knowledge across multiple domains. Further research is warranted to explore the long-term effectiveness of the application in diverse populations and settings, ultimately contributing to improved asthma management and patient outcomes.

PANoptosis opens new treatment options for allergic bronchopulmonary aspergillosis

BackgroundAllergic bronchopulmonary aspergillosis (ABPA) is a rare airway disorder primarily affecting patients with asthma and cystic fibrosis. Persistent airway inflammation brought on by Aspergillus fumigatus exacerbates the underlying condition and can cause significant respiratory damage. Treatments center on reducing inflammation with the use of corticosteroids and antifungals. PANoptosis is a new concept in the field of cell death and inflammation that posits the existence of crosstalk and a master control system for the three programmed cell death (PCD) pathways: apoptosis, pyroptosis, and necroptosis. The concept has revolutionized the understanding of PCD and opened new avenues for exploration. Studies show that Aspergillus is one of the pathogens capable of activating PANoptosis via the Z-DNA binding protein 1 (ZBP1) pathway and plays an active role in the inflammation caused by this organism. ObjectiveThis review explores the nature of inflammation in ABPA and how PCD could lead to novel treatment options. MethodA review of literature surrounding Aspergillus infection related inflammation and PANoptosis was conducted using Pubmed. ResultsThere is evidence that apoptosis and pyroptosis protect from Aspergillus induced inflammation while necroptosis promotes inflammation. ConclusionExperimental medications, particularly necroptosis inhibitors, such as necrosulfonamide and necrostatin-1, should be studied for the treatment of ABPA.

Trust Development Between Speech-Language Pathologists and Laryngologists: A Thematic Analysis

ObjectivesSpeech language pathologists (SLPs) and laryngologists often work closely in interdisciplinary settings evaluating and treating patients with voice, swallowing, and airway disorders. This collaboration is integral to providing optimum patient care. We theorize that trust is an essential component of this relationship and contributes to effective patient care and professional satisfaction. There is currently no literature that explores the development and role of trust in this unique interprofessional relationship. We aim to explore the SLP and laryngologist interprofessional relationship and the development and role of trust in that relationship. Study DesignQualitative Realist Thematic Analysis MethodsThematic analysis of semi-structured qualitative interviews was performed to explore the relationship between SLPs and laryngologists. Through purposive sampling from November 2022 – January 2023, we recruited SLPs (n=10) and laryngologists (n=10) from 12 centers with varying years of practice, practice setting (academic or private), geographic location, and team structures. ResultsTrust between SLPs and laryngologists is comprised of confidence in 1) ability (clinical judgment, technical skill), 2) benevolence, and 3) integrity. Trust formation is enhanced by frequency and quality of communication, physical proximity, and reduction of practical barriers (scheduling, billing, departmental structure). Role negotiation was not identified as a factor. The presence of all three components of trust contributes to job satisfaction, perceptions of patient experience and care outcomes, and the willingness to collaborate in academic areas beyond clinical care. ConclusionsAll three elements (ability, benevolence, integrity) must be present for trust in an interprofessional relationship between SLPs and laryngologists, and formation of trust is facilitated by robust communication, physical proximity, and reduction of practical barriers to collaboration. The lack of these elements and lack of trust between the two professions can negatively impact collaboration, job satisfaction, and patient care outcomes, contributing to inefficiencies in patient care.

A distal enhancer of GATA3 regulates Th2 differentiation and allergic inflammation

Asthma is a widespread airway disorder where GATA3-dependent Type-2 helper T (Th2) cells and group 2 innate lymphoid cells (ILC2s) play vital roles. Asthma-associated single nucleotide polymorphisms (SNPs) are enriched in a region located 926-970 kb downstream from GATA3 in the 10p14 (hG900). However, it is unknown how hG900 affects the pathogenesis of allergic airway inflammation. To investigate the roles of the asthma-associated GATA3 enhancer region in experimental allergic airway inflammation, we first examined the correlation between GATA3 expression and the activation of the hG900 region was analyzed by flow cytometry and ChIP-qPCR. We found that The activation of enhancers in the hG900 region was strongly correlated to the levels of GATA3 in human peripheral T cell subsets. We next generated mice lacking the mG900 region (mG900KO mice) were generated by the CRISPR-Cas9 system, and the development and function of helper T cells and ILCs in mG900KO mice were analyzed in steady-state conditions and allergic airway inflammation induced by papain or house dust mite (HDM). The deletion of the mG900 did not affect the development of lymphocytes in steady-state conditions or allergic airway inflammation induced by papain. However, mG900KO mice exhibited reduced allergic inflammation and Th2 differentiation in the HDM-induced allergic airway inflammation. The analysis of the chromatin conformation around Gata3 by circular chromosome conformation capture coupled to high-throughput sequencing (4C-seq) revealed that the mG900 region interacted with the transcription start site of Gata3 with an influencing chromatin conformation in Th2 cells. These findings indicate that the mG900 region plays a pivotal role in Th2 differentiation and thus enhances allergic airway inflammation.

The safety and efficacy of spray cryotherapy after endoscopic sinus surgery in chronic rhinosinusitis: A systematic review of randomized controlled trials

Background Chronic rhinosinusitis (CRS) is a condition that affects 5–12% of the general population. Endoscopic sinus surgery (ESS) is the preferred treatment because of its few adverse effects and highest success rates. The most common post-operative consequences include synechia, nasal blockage, and disease recurrence. Spray cryotherapy is a novel therapeutic approach with promising outcomes for the treatment of upper airway disorders. This review aimed to investigate the effects of spray cryotherapy (SCT) following ESS in patients with chronic rhinosinusitis. Methods Six electronic databases were searched for randomized clinical trials (RCTs). The selected trials were evaluated for methodological quality, and data were extracted by two independent reviewers. The Cochrane risk-of-bias tool was used to assess the quality of evidence. Results Three RCTs with 85 patients were included in the final analysis. SCT was related to -16 and -77 reductions in Lund-McKay and SNOT-22 scores after 36 weeks of follow-up, in contrast to a placebo, which showed -10.4, -65. Regarding the side effects of SCT, no adverse effects were reported, and visual assessments showed no pain, visual field loss, or any other ocular complications. Conclusions SCT is a new treatment modality after endoscopic sinus surgery that shows an effective post-operative management strategy with better post-operative scales (Lund-McKay, SNOT-22, POSE, and Lund-Kennedy) and less edema, obstruction, crusting, and inflammation with minimal or no side effects. However, further research with longer follow-ups, a larger sample size, and subjective assessment is needed to assess any possible long-term side effects.

Macrophage Extracellular Traps Suppress Particulate Matter–Induced Airway Inflammation

Accumulating evidence has substantiated the potential of ambient particulate matter (PM) to elicit detrimental health consequences in the respiratory system, notably airway inflammation. Macrophages, a pivotal component of the innate immune system, assume a crucial function in responding to exogenous agents. However, the roles and detailed mechanisms in regulating PM-induced airway inflammation remain unclear. The current study revealed that PM had the ability to stimulate the formation of macrophage extracellular traps (METs) both invitro and invivo. This effect was dependent on peptidylarginine deiminase type 4 (PAD4)-mediated histone citrullination. Additionally, reactive oxygen species were involved in the formation of PM-induced METs, in parallel with PAD4. Genetic deletion of PAD4 in macrophages resulted in an up-regulation of inflammatory cytokine expression. Moreover, mice with PAD4-specific knockout in myeloid cells exhibited exacerbated PM-induced airway inflammation. Mechanistically, inhibition of METs suppressed the phagocytic ability in macrophages, leading to airway epithelial injuries and an aggravated PM-induced airway inflammation. The present study demonstrates that METs play a crucial role in promoting the phagocytosis and clearance of PM by macrophages, thereby suppressing airway inflammation. Furthermore, it suggests that activation of METs may represent a novel therapeutic strategy for PM-related airway disorders.

Knowledge and Awareness of Mothers of Asthmatic Children and Its Impact on Asthma Control: A Cross-Sectional Study From Qassim Region, Saudi Arabia.

Introduction Asthma, a common chronic airway disorder, presents challenges in diagnosis and management, particularly in children. Triggers include allergens and pollutants, necessitating lifestyle modifications and pharmacological treatments. Severe cases require tailored management. International guidelines provide stepwise approaches, while the Saudi Thoracic Society offers comprehensive recommendations, emphasizing gradual treatment phases and thorough clinical assessment. This study aimed to evaluate the knowledge and awareness levels among mothers of asthmatic children in Qassim region, Saudi Arabia. Methodology This cross-sectional study was conducted among 422 mothers with asthmatic children at primary healthcare centers in Qassim, Saudi Arabia. Mothers' knowledge of asthma was assessed using an online questionnaire. Participants were selected via a convenient non-probability sampling technique. Data was cleaned in Excel and analyzed using IBMSPSSStatistics for Windows, Version 29 (Released 2023; IBM Corp., Armonk, New York, United States). Participants were selected via a convenient non-probability sampling technique. Necessary statistical tests like Chi-square and Fisher'sexact test were applied. Results Our study involved 422 mothers of asthmatic children in Saudi Arabia. Most participants were aged 35-44 years (50.7%) and Saudi nationals (92.2%), with 88.2% having one asthmatic child. Regarding awareness, exposure to air pollution (97.9%) and cigarettes (93.4%) were well-recognized factors. Pediatricians (50.5%) and family physicians (42.2%) were primary information sources. Concerning attitudes, most mothers disagreed with the harmful effects of inhalers (82.5%-92.7%) and advocated for avoiding smoking near asthmatic children (94.8%). Our study revealed that 94.5%of mothers of asthmatic children possessed a good level of knowledge about asthma in their children, while 5.5%demonstrated a low level of knowledge. Notably, mothers with good knowledge levels reported fewer emergency room visits (p=0.011) and hospitalizations (p=0.001). Predictors of good-level knowledge included higher education (adjusted odds ratio (AOR) =4.080, p=0.007) and absence of smoking relatives (AOR =0.222, p=0.005), while pet ownership was associated with lower knowledge (AOR =0.257, p=0.030). Conclusion Our study underscores the importance of maternal knowledge in pediatric asthma management. Good awareness levels were observed regarding key risk factors and appropriate attitudes toward medication use. Higher education and absence of smoking relatives were significant predictors of mothers' knowledge of the disease.

Safety and efficacy of airway stent placement following bronchial artery embolization: A retrospective study at a single institute

BackgroundAirway stenting is an established procedure for treating oncological emergencies in patients with airway disorders. In patients with airway hemorrhage, respiratory conditions may worsen during stenting. Bronchial artery embolization (BAE) is useful to prevent bleeding from the bronchus. We aimed to evaluate the efficacy and safety of airway stenting after BAE in patients with malignant airway disorders. MethodsThe medical records of all patients who underwent airway stenting following BAE at the National Hospital Organization Okayama Medical Center between 2016 and 2023 were retrospectively reviewed. ResultsThirteen procedures (11 silicone Y stents, one hybrid stent, and one self-expandable metallic stent) were performed. The median duration from BAE to airway stenting was one day (range: 1–5 days). Nine patients experienced tumor shrinkage, and none experienced severe bleeding after BAE during the stent procedure. No other major complications were associated with the stent placement. The median survival time after stenting was 169 days (range; 24–1086). No serious complications caused by BAE, such as spinal cord infarction, were observed. ConclusionsAirway stent placement was safely performed after BAE without severe bleeding or acute respiratory failure. BAE, followed by airway stenting, is useful.

Association of autoimmune and autoinflammatory disorders with chronic rhinosinusitis in children

BackgroundIncreasing evidence suggests that autoimmune disorders and their immunomodulating medications may increase the risk of rhinosinusitis. The goal of this study is to determine if autoimmune and autoinflammatory diseases are associated with increased risk of chronic rhinosinusitis (CRS) in children. MethodsA retrospective case-control study of pediatric patients (age 2–18 years) seen in the West Virginia University Hospitals System in the past 10 years was performed. Cases were children with autoimmune or autoinflammatory diseases. Controls were children without any autoimmune or autoinflammatory disorders. Query of our electronic medical record (Epic) was performed using ICD-10 codes. Univariate (unadjusted) and multivariate (adjusted) logistic regression were used to calculate the strength of association of autoimmune or autoinflammatory disorders with CRS and the other airway disorders while adjusting for age, sex, and race. Results420582 pediatric patients were queried with mean age of 10.8 years (SD of 4.8, range of 2–18 years), and 47.9% being female. 1956 (0.5%) had autoimmune disorders and 293 (0.07%) had autoinflammatory disorders. Both autoimmune and autoinflammatory disorders increase the odds of having CRS in the unadjusted [OR = 3.36, p < 0.001 and 5.69, p < 0.001 for the respectively] and the adjusted [OR = 2.90, p < 0.001 and OR = 5.07, p < 0.001 respectively after adjusting for age, sex, and race] models. ConclusionAutoimmune and autoinflammatory disorders increase the risk of CRS and chronic rhinitis in children.

Comparison of Forced Oscillation Technique, Lung Volumes by Body Plethysmography, and Spirometry in Moderate Persistent Adult Asthma.

Spirometry is used extensively, but airway oscillometry is gaining acceptance for evaluating obstructive airway disorders. Moderate persistent asthma requires daily treatment with inhaled corticosteroids (ICS). We aimed to examine the relationship between airway oscillometry and lung volumes, which are the markers of lung physiology in obstructive airway disease and spirometry in the real-world clinical setting. A total of 72 adults with moderate persistent asthma followed up in our outpatient department from November 2021 to August 2022, and their clinical details and tests of spirometry, forced oscillation technique (FOT), and lung volumes by body plethysmography (BP) performed before and after bronchodilator administration were analyzed. The mean age of the study population was 40 years, and the majority (57%) were females. FOT detected airflow limitation in 12 of the 31 patients with normal spirometry. BP detected abnormalities in more patients than both spirometry and FOT (91.6 vs 73.6%, p < 0.001). Respiratory resistance 5 (R5) had a negative correlation with functional residual capacity (FRC) and total lung capacity (TLC). Reactance 5 (X5) correlated positively with inspiratory capacity (IC) and TLC and negatively with reserve volume (RV)/TLC ratio. A positive correlation was found between IC/TLC% and postbronchodilator X5 and between R5 and 19 and RV/TLC. R5 had a negative and X5 had a positive correlation with forced expiratory volume in 1 second (FEV1), forced vital capacity (FVC), FEV1/FVC, and maximal mid expiratory flow rates (MMEF). ∇X5 had a negative correlation with FEV1, MMEF, and FEV1/FVC. Spirometry detected postbronchodilator responsiveness in more patients than FOT when only the R5 criterion was used and in a comparable number when the X5 criterion was added. ∇X5 and R5-R19/R5 declined significantly after bronchodilators. We concluded that there is a moderate correlation between FOT and spirometry and lung volumes by BP. FOT and spirometry should be used together to identify airflow obstruction and postbronchodilator responsiveness in asthma. Lung volumes by BP identify more abnormalities in adults with asthma than both spirometry and FOT. Thresholds to define postbronchodilator responsiveness (PBDR) for ∇X5 and R5-R19 need to be defined.

A Comprehensive Review Exploring Allergic Rhinitis With Nasal Polyps: Mechanisms, Management, and Emerging Therapies.

Allergic rhinitis (AR) and nasal polyps (NP) are common inflammatory disorders of the upper airways that often coexist and significantly impact patients' quality of life. This comprehensive review explores the intricate relationship between AR and NP, elucidating the underlying mechanisms, clinical manifestations, and management strategies. Immunological mechanisms, genetic predispositions, and environmental factors contribute to the development and progression of both conditions. Pharmacological therapies, including intranasal corticosteroids and biologic agents, are cornerstone treatments for managing AR with NP. At the same time, surgical interventions such as functional endoscopic sinus surgery (FESS) may be necessary in refractory cases. Emerging therapies, including immunomodulatory agents and precision medicine approaches, hold promise in improving treatment outcomes. A multidisciplinary approach, personalized treatment plans, and patient education are essential for optimizing clinical practice. Future research should focus on identifying novel therapeutic targets, conducting large-scale clinical trials, exploring precision medicine approaches, and investigating the role of the microbiome. Addressing these research priorities and implementing evidence-based treatment strategies can improve outcomes for patients with AR and NP.