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Risk for transmission of SARS-CoV-2 through allogeneic human tissue transplantation is unknown. To further evaluate the risk of virus transmission, tissues were obtained from deceased donors who had tested positive for SARS-CoV-2 RNA via nasopharyngeal swab. This study evaluated an array of human tissues recovered for transplantation, including bone, tendon, skin, fascia lata, vascular tissues, and heart valves. Tissue samples and plasma or serum samples, if available, were tested for viral RNA (vRNA) using a real time PCR system for the presence of virus RNA. All samples were tested in quadruplicate for both subgenomic (sgRNA) and genomic (gRNA) RNA encoding the SARS-CoV-2 nucleocapsid gene. Amplification of a cellular housekeeping gene served as the positive control for every sample. A total of 47 tissue samples from 17 donors were tested for SARS-CoV-2 RNA. Four donors had plasma or serum available for paired testing. SARS-CoV-2 RNA was not detected from any tissue or plasma/serum sample tested. Based on these findings, risk of transmission through the transplantation of tissue types studied from SARS-CoV-2 infected donors is likely to be low.

OBJECTIVES: Viral lower respiratory tract infection (vLRTI) contributes to substantial morbidity and mortality in children. Diagnosis is typically confirmed by reverse transcriptase polymerase chain reaction (RT-PCR) of nasopharyngeal specimens in hospitalized patients; however, it is unknown whether nasopharyngeal detection accurately reflects presence of virus in the lower respiratory tract (LRT). This study evaluates agreement between viral detection from nasopharyngeal specimens by RT-PCR compared with metagenomic next-generation RNA sequencing (RNA-Seq) from tracheal aspirates (TAs). DESIGN: This is an analysis of of a seven-center prospective cohort study. SETTING: Seven PICUs within academic childrens hospitals in the United States. PATIENTS: Critically ill children (from 1 mo to 18 yr) who required mechanical ventilation via endotracheal tube for greater than or equal to 72 hours. INTERVENTIONS: We evaluated agreement in viral detection between paired upper and LRT samples. Results of clinical nasopharyngeal RT-PCR were compared with TA RNA-Seq. Positive and negative predictive agreement and Cohens Kappa were used to assess agreement. MEASUREMENTS AND MAIN RESULTS: Of 295 subjects with paired testing available, 200 (68%) and 210 (71%) had positive viral testing by RT-PCR from nasopharyngeal and RNA-Seq from TA samples, respectively; 184 (62%) were positive by both nasopharyngeal RT-PCR and TA RNA-Seq for a virus, and 69 (23%) were negative by both methods. Nasopharyngeal RT-PCR detected the most abundant virus identified by RNA-Seq in 92.4% of subjects. Among the most frequent viruses detected, respiratory syncytial virus demonstrated the highest degree of concordance (κ = 0.89; 95% CI, 0.83-0.94), whereas rhinovirus/enterovirus demonstrated lower concordance (κ = 0.55; 95% CI, 0.44-0.66). Nasopharyngeal PCR was more likely to detect multiple viruses than TA RNA-Seq (54 [18.3%] vs 24 [8.1%], p ≤ 0.001). CONCLUSIONS: Viral nucleic acid detection in the upper versus LRT reveals good overall agreement, but concordance depends on the virus. Further studies are indicated to determine the utility of LRT sampling or the use of RNA-Seq to determine LRTI etiology.

Dynamic nasopharyngeal collapse (NPC) is an obstructive upper airway disease that affects mainly the inspiratory phase of respiration in horses undergoing strenuous exercise. It occurs when the neuromuscular activity of the nasopharynx is overwhelmed by the intense negative pressures generated during exercise. This leads to collapse of at least one of the four components of the nasopharynx which is comprised of the two lateral walls, the dorsal roof and the ventral soft palate. As a result, the airway diameter and thus airflow become compromised. Even small changes in the airway diameter produces profound increases in negative inspiratory pressure, perpetuating the cycle of collapse. Compared to other dynamic upper respiratory tract disorders, the amount of literature on NPC as a disease entity is limited. The exact pathophysiology of NPC is unknown; however, it impacts up to one quarter of high‐performance equine athletes presenting for poor performance. There is currently no definitive treatment for this severely performance‐limiting condition. Thus, the prognosis for future athletic prognosis is guarded, with most horses being retired from racing or athletic use in general. Further research is warranted in this field to reduce the impact of disease and in turn, reduce the turnover rate and economic loss by enhancing the career longevity of elite equine athletes diagnosed with NPC. [ABSTRACT FROM AUTHOR]

Background Hypothesis/Objectives Animals Methods Results Conclusion and Clinical Importance Dorsomedian nasopharyngeal masses with benign macroscopic appearance are frequently observed during retrograde nasopharyngoscopy, particularly in brachycephalic breeds, but are not well described.To characterize these masses, assess their frequency, and identify the potential factors associated with their presence.Dogs that underwent retrograde nasopharyngoscopy at a private hospital.Medical records between November 2019 and October 2022 were retrospectively reviewed. Dogs were included if suitable nasopharynx images were available for review. Univariable and multivariable logistic regression analyses were performed to determine the factors associated with these masses.One‐hundred ninety‐eight dogs met the inclusion criteria of which 47.9% (95/198) had a dorsal nasopharyngeal mass. The masses measured <10%, 10%‐30%, and >30% of the nasopharyngeal height in 64.2% (61/95), 28.4% (27/95), and 7.4% (7/95) of cases, respectively. Univariable analysis identified associations between the presence of a nasopharyngeal mass and several factors: brachycephalic conformation (P < .001), sleep disturbances (P = .04), presence of laryngeal collapse (P = .01), and aberrant caudal turbinates (P = .04). However, according to the multivariable analysis, only the association between the presence of a mass and brachycephalic conformation was significant (odds ratio = 2.3 [1.1; 5.0], P = .03).Dorsomedian nasopharyngeal masses were common in the studied dog population. These masses are mostly small and have the same appearance across breeds. Brachycephalic conformation appears to be associated with the presence of a mass. [ABSTRACT FROM AUTHOR]

Background: Some orthodontic devices used in children share similar design principles to appliances used to treat obstructive sleep apnoea in adults. As well as treating malocclusion, orthodontic appliances used in children may therefore also have effects on the upper airway. Objective: A review of the literature to assess the effects of orthodontic treatment on the upper airway dimensions in children assessed on CBCT. Materials and Methods: Following registration of the protocol (PROSPERO CRD42023439056), a systematic electronic search of published studies was performed using several databases (PubMed; Scopus, Web of Science and Science Direct) in accordance with the PRISMA guidelines. Inclusion criteria were as follows: age under 18 years, orthodontic treatment with any appliance, a control group who received no treatment or a non‐active alternative treatment and airway measurement using CBCT. RoB‐2 and ROBINS‐I tools were used to assess risk of bias and quality of the evidence. Results: In total, 341 studies were identified following the initial search. Title and abstract screening resulted in 45 studies for further full‐text analysis. On completion of the screening process, a total of 23 studies met the inclusion criteria. Study interventions included functional appliances (10 studies), rapid maxillary expansion (RME) (9 studies), reverse‐pull headgear (1 study) and 4 premolar dental extractions (3 studies). The included studies had moderate to high risk of bias, and the quality of evidence was low. Conclusion: The scientific evidence shows that functional appliances are associated with significant improvements in both upper airway volume and constriction when used in children however, the effects on the nasal cavity are limited. RME was associated with a significant increase in nasal cavity and nasopharyngeal dimensions, but not the upper pharyngeal airway. Neither reverse‐pull headgear nor dental extractions were associated with any change in airway dimensions; however, the evidence is limited. Functional appliances may reduce the severity of obstructive sleep apnoea (OSA) in children. [ABSTRACT FROM AUTHOR]

Background: Radiology, endoscopy, and clinical evaluation are the three most used diagnostic modalities for adenoids. This research aimed to evaluate the most accurate method for assessment of adenoid hypertrophy (radiological versus endoscopic Assessment). Patients and methods: We carried out this cross-sectional study on 60 children with chronic adenoid hypertrophy recruited from the ENT outpatient clinic in Zagazig university hospital for management their problem. During the initial assessment, a diagnostic nasal endoscopy was conducted utilizing both rigid and flexible endoscopes.X-ray nasopharynx lateral view was done for all patients. Results: By X ray 30% of the cases were Grade I, 31.7% were Grade II, 18.3% were Grade III and 20 % were Grade IV. By endoscope 30% of the cases were Grade I, 31.7% were Grade II, 28.3 were Grade III and 10% were Grade IV. Statistically significant agreements were revealed between the clinical grading and X ray (p<0.001), the clinical grading and endoscope (p=0.003), X ray and endoscope (p<0.001). Statistically significant positive correlation was found between grading by clinical examination and both X ray and endoscope (p<0.001). The sensitivity of X ray in diagnosis of the adenoid obstruction was 83.3%, specificity was 94.4%, PPV 62.5%, NPV 98% and Accuracy was 93.33% in comparison to endoscope as gold standard. Conclusion: The X-ray alone can rule out adenoidal hypertrophy, but alone it could be insufficient for assessment of the degree of adenoidal obstruction. Endoscopy was found to be more reliable, convenient, correlate well with the volume of adenoid tissue and allow estimation of adenoidal hypertrophy with degree of obstruction. This study demonstrates that combining clinical grading with endoscopy and radiology is important for the evaluation of adenoid hypertrophy. [ABSTRACT FROM AUTHOR]

Nasopharyngeal cysts are rare benign entity, smaller in size and usually asymptomatic. They are mostly diagnosed incidentally on MRI. Larger cysts commonly presents with spasmodic and obstructive symptoms. Thornwaldt cysts are congenital cysts originating from the mid- line of the nasopharynx just above the upper border of the superior constrictor muscle. They represent primitive communication between notochord remnants and the pharyngeal endoderm. We report this case because of its unique presentation in a 35 year old male. Patient presented with nasal blockage, nasal discharge, snoring, ear pain and aural fullness, intermittent neck pain and neck stiffness. Preoperative evaluation included diagnostic nasal endoscopy (DNE) and Magnetic resonance imaging (MRI-scan). A large cystic mass of size 2.8 cm × 3 cm was diagnosed on DNE and MRI. Transnasal Marsupialisation and excision of the cyst was planned using powered instruments. Post operatively, patient noticed marked improvement in the obstructive symptoms. Regular follow up was done 6 monthly for 2 years. No recurrence was noted on DNE. Although a rare pathology in adulthood, it should be kept as a differential diagnosis for cervical pain and neck stiffness. [ABSTRACT FROM AUTHOR]

Introduction The clival, paraclival, and craniocervical junction regions are challenging surgical targets. To approach these areas, endoscopic endonasal transclival approaches (EETCAs) and their extensions (far-medial approach and odontoidectomy) have gained popularity as they obviate manipulating and working between neurovascular structures. Although several cadaveric studies have further refined these contemporary approaches, few provide a detailed step-by-step description. Thus, we aim to didactically describe the steps of the EETCAs and their extensions for trainees. Methods Six formalin-fixed cadaveric head specimens were dissected. All specimens were latex-injected using a six-vessel technique. Endoscopic endonasal middle and inferior clivectomies, far-medial approaches, and odontoidectomy were performed. Results Using angled endoscopes and surgical instruments, an endoscopic endonasal midclivectomy and partial inferior clivectomy were performed without nasopharyngeal tissue disruption. To complete the inferior clivectomy, far-medial approach, and partially remove the anterior arch of C1 and odontoid process, anteroinferior transposition of the Eustachian–nasopharynx complex was required by transecting pterygosphenoidal fissure tissue, but incision in the nasopharynx was not necessary. Full exposure of the craniocervical junction necessitated bilateral sharp incision and additional inferior mobilization of the posterior nasopharynx. Unobstructed access to neurovascular anatomy of the ventral posterior fossa and craniocervical junction was provided. Conclusion EETCAs are a powerful tool for the skull-base surgeon as they offer a direct corridor to the ventral posterior fossa and craniocervical junction unobstructed by eloquent neurovasculature. To facilitate easier understanding of the EETCAs and their extensions for trainees, we described the anatomy and surgical nuances in a didactic and step-by-step fashion. [ABSTRACT FROM AUTHOR]

BACKGROUND: The flow reaching the vocal folds may be lower than that at the output of high-flow nasal cannula (HFNC) system. This could be due to upper-respiratory obstruction, oxygen leakage, or other factors. The objective of this study was to observe the effect of flow through a nasopharyngeal airway on intrapharyngeal pressure (IPP) in subjects undergoing fiberoptic bronchoscopy (FOB). METHODS: Patients scheduled for FOB were invited to participate. Measurements were performed at flows of 0-60 L/min; the subjects wore WN-N95 folding medical protective masks (N95) and either underwent FOB or not. IPP at each flow was recorded following 15 s of ventilation, and the cross-sectional area (CSA) of the gastric sinus was measured before and after FOB. Hypoxemia, reflux aspiration, and other pertinent events were recorded. RESULTS: Sixty subjects undergoing FOB at the Affiliated Hospital of Jiaxing University participated in this trial from October 2022-September 2023. IPP increased significantly with an increase in flow and also increased after placing the N95 mask with the same flow (P < .001). When results from before to after FOB were compared, the difference in CSA was statistically significant 263.6 (220.7-300.5) mm² vs 305.5 (275.4-329.5) mm², P < .001, but the difference in the risk of reflux aspiration was not statistically significant (0% vs 6.7%, P = .13). Complication rates during treatment were 8.3% for hypoxemia, 0% for reflux aspiration, 1.7% for hypertension, 1.7% for hypotension, 6.7% for tachycardia, 5% for bradycardia, and 10% for postoperative nausea and vomiting. CONCLUSIONS: HFNC can provide effective oxygen therapy for people undergoing FOB, and increases in IPP with flow in the range of 0-60 L/min may not increase the risk of reflux aspiration. [ABSTRACT FROM AUTHOR]

The aim of the current study was to evaluate the pharyngeal airway dimensions of individuals with different skeletal patterns in a cohort of the Emirati population. The specific aim was to assess the relationship between pharyngeal airway dimensions and anterior facial height in relation to different skeletal patterns. This retrospective study was conducted on a sample of 103 CBCT scans of adult Emirati subjects categorized into three groups according to their skeletal classification as indicated by the ANB angle: Class I (n = 35), Class II (n = 46), and Class III (n = 22). All CBCT scans were taken using an i-CAT CBCT imaging machine (Imaging Sciences, Hatfield, PA, USA). The age range of the patients was 19 to 68 years (62 women and 41 men). ANOVA, t-tests, Kruskal–Wallis, and Mann–Whitney tests were employed for comparing means among groups. The correlation coefficient was used to evaluate the association between variables. A p-value of less than 0.05 was considered statistically significant. This study revealed significant associations between various airway parameters and cephalometric measurements. Positive correlations were observed between nasal cavity volume and nasopharynx volume, as well as anterior facial height. Oropharynx volume exhibited positive correlations with hypopharynx volume and total airway volume, and negative correlations with overjet, ANB angle, and patient age. Hypopharynx volume correlated positively with total airway volume and the most constricted area of the airway (MCA). Total airway volume showed positive correlations with MCA and anterior facial height. MCA had negative correlations with ANB angle and patient age. Nasopharynx volume was significantly larger in the skeletal Class I group than in the Class II or Class III groups, while the other airway parameters showed no significant differences among the groups (p > 0.05). Several airway parameters showed a correlation with anterior facial height among the different skeletal patterns. Nasopharyngeal airway volume was significantly larger in the skeletal Class I group than in Class II and III groups in the studied sample. [ABSTRACT FROM AUTHOR]

Background: Chest physiotherapy for airway clearance is not recommended in children hospitalized with bronchiolitis. The updated Cochrane meta-analysis suggests that slow expiratory techniques could slightly improve clinical severity, but the evidence certainty is low and the clinical significance of this change is unknown. We investigated whether the prolonged slow expiration technique (PSET) would impact the 24-h food intake of these children. Methods: We conducted a two-arm double-blind randomized controlled trial. Hospitalized children aged from 1 to 12 months, bottle-fed or diversified and referred for airway clearance were included. Both groups received upper airway clearance at inclusion and standard treatments. The experimental group received PSET including rhinopharyngeal unclogging and targeted unprovoked cough. The primary outcome was the 24-h food intake. Clinical severity, vomit episodes and sleep quality were also recorded. An ordinary least squares linear regression for quantitative variables was modelled for between-group comparisons. Results: From January 9, 2019, to December 1, 2022, 42 children were randomized with a 1:1 ratio (mean age: 5.0 (± 2.9) months). The 24-h food intake did not differ between groups (estimate: 1.8% (95%CI -7.0 to 10.6); p = 0.68). PSET had no effect on SpO2, clinical severity, RR and HR at the follow-up assessments (5 min, 30 min and 24 h after intervention), nor on the number of vomit episodes, total sleep time and SpO2 during sleep. Conclusions: PSET did not affect food intake or the 24-h course of bronchiolitis more than standard treatment in children hospitalized for moderate bronchiolitis. Trial registration: NCT03738501 registered on 13/11/2018, Slow Expiratory Technique to Improve Alimentation in Children With Bronchiolitis (BRONCHIOL-EAT); https://classic.clinicaltrials.gov/ct2/show/NCT03738501. [ABSTRACT FROM AUTHOR]

Objective: This study aimed to investigate the normal volumetric space and variations in the measurements of different landmarks in adults with different skeletal relations of the maxilla and the mandible based on CBCT data. The study also analyses these landmarks to locate any correlations. Background: Numerous studies in orthodontics have found a relationship between orthodontic treatment and changes in the anatomy and function of the airway. Severe changes in airway morphology can cause breathing difficulties, lower quality of life, and even result in life-threatening conditions such as obstructive sleep apnoea. Consequently, orthodontic diagnosis and treatment planning require a thorough understanding of the airway space and its function. Methods: The present retrospective study was conducted using CBCT records of 120 adult patients, containing 40 samples of each skeletal class (20 males and 20 females). The boundaries were defined for the 3 major regions: the nasopharynx, the oropharynx, and the hypopharynx. Various measurements were recorded across these regions, as well as selective cephalometric landmarks. The obtained data was used to calculate average and standard deviation, while regression analysis was used to evaluate correlations and t-test was used to test statistical significance of gender differences. Results: The results demonstrate that skeletal Class III individuals exhibit a reduced airway volume in the nasopharynx compared to other groups, whereas skeletal Class II individuals displayed a diminished airway volume in the hypopharynx. A strong correlation was observed for Sella turcica parameters. There were no significant differences in skeletal parameters across genders. Nasopharynx cavity volume demonstrated significant differences between skeletal Class I–Class III as well as between skeletal Class II–Class III. Hypopharynx cavity volume also demonstrated significant differences between skeletal Class I–Class II and between skeletal Class II–Class III. Conclusion: The major findings are the presence of a reduced nasopharyngeal volume in skeletal Class III malocclusions while skeletal Class II individuals displayed a diminished hypopharyngeal volume, making these critical areas to consider during the diagnostic and orthodontic treatment planning stages. This study also revealed a consistent correlation between Sella turcica parameters across various facial skeletal profiles, with skeletal Class II patients exhibiting a distinct pattern and skeletal Class I and Class III demonstrating an average relationship. [ABSTRACT FROM AUTHOR]

Background/Objectives: Dendrimer-based astodrimer sodium nasal spray was assessed for its ability to reduce SARS-CoV-2 load in outpatients with COVID-19, which remains a severe illness for vulnerable groups. Methods: This was a randomised, double-blind, placebo-controlled clinical investigation evaluating the efficacy of astodrimer nasal spray in reducing SARS-CoV-2 viral burden in the nasopharynx of outpatients with COVID-19. Non-hospitalised adults with SARS-CoV-2 infection were randomised 1:1 to astodrimer or placebo four times daily from Day 1 to Day 7. Nasopharyngeal swabs for SARS-CoV-2 load determination were self-obtained daily from Day 1 to Day 8. The primary endpoint was an area under the curve of SARS-CoV-2 RNA copies/mL through Day 8 (vAUCd1–8). The primary analysis population was the modified intent-to-treat population (mITT: all randomised participants exposed to the study treatment who had at least one post-baseline viral load determination). Safety analyses included all randomised participants exposed to the study treatment. Study registration: ISRCTN70449927; Results: 231 participants were recruited between 9 January and 20 September 2023. The safety population comprised 109 and 113 participants randomised to astodrimer and placebo, respectively, with 96 and 101 participants in the mITT. Astodrimer sodium nasal spray reduced the SARS-CoV-2 burden (vAUCd1–8) vs. placebo in non-hospitalised COVID-19 patients aged 16 years and over (−1.2 log10 copies/mL × Day). The reduction in SARS-CoV-2 load was statistically significant in those aged 45 years and older (−3.7, p = 0.017) and the effect increased in older age groups, including in those aged 65 years and older (−7.3, p = 0.005). Astodrimer sodium nasal spray increased the rate of viral clearance and helped alleviate some COVID-19 symptoms, especially loss of sense of smell. Overall, 31 participants (14%) had ≥1 adverse event (AE). Four AEs were deemed possibly related to treatment. Most AEs were of mild severity and occurred at similar rates in both treatment arms. Conclusions: Astodrimer nasal spray reduces viral burden and accelerates viral clearance, especially in older populations, and is well tolerated. [ABSTRACT FROM AUTHOR]

Benign dendritic melanocytic proliferation is usually observed in the skin. We report an extremely rare case of a melanocytic lesion in the middle ear mucosa. Only 3 cases of melanocytic lesions in the middle ear have been reported. Our report is the only one that describes an adult with a melanocytic lesion in the middle ear that extended to the inner ear and nasopharyngeal mucosa. A 23-year-old female presented with profound sensory neural hearing loss and recurrent discharge from the right ear. Examination revealed a blue right tympanic membrane with a small perforation. Computed tomography scans and magnetic resonance imaging were performed. After surgical exploration and histopathological examination, the patient was found to have a benign melanocytic lesion in the right middle ear. Melanocytic lesions are commonly found in the skin. There are no previous reports have described adult patients with melanocytic lesions in the middle ear that extend to the inner ear and nasopharynx, which cause profound hearing loss with recurrent ear discharge. These patients require regular follow-up to assess the progression of the lesion and to watch for any malignant behavior. [ABSTRACT FROM AUTHOR]

Introduction: This systematic review aims to evaluate the role of biopsies in non‐oropharyngeal subsites in patients with cervical metastasis from head and neck squamous cell carcinoma of unknown primary (HNSCCUP). Methods: This systematic review was conducted according to the Preferred Reporting Items for Systematic Reviews and Meta‐Analyses (PRISMA) statement. Articles that encompassed non‐oropharyngeal biopsies in HNSCCUP as part of the diagnostic work‐up were selected and analysed. Results: A comprehensive search strategy was used to search relevant literature in PubMed from inception to October 2021. Eleven articles out of 860 were included, comprising 990 patients. There are no randomised control trials comparing the outcomes of survival and or locoregional control between patients who have or have not undergone non‐targeted biopsies of non‐oropharyngeal sub‐sites for HNSCCUP. Several retrospective studies which showed an extremely low yield from random biopsies (range of yield, 0%–9%) of non‐oropharyngeal subsites. Even targeted biopsies showed a low yield (range of yield, 0.6%–16.6%) from non‐oropharyngeal subsites. The primary site identified for Epstein–Barr virus (EBV) positive cervical lymph nodes with an unknown primary is mainly the nasopharynx (51.7%). Narrow band imaging (NBI) (sensitivity range, 64%–91%) helps in the detection of primaries to target biopsies in non‐oropharyngeal subsites. Conclusions: On the basis of this systematic review, it is not appropriate to offer biopsies of clinically and radiologically normal upper aerodigestive tract mucosa at non‐oropharyngeal sites. Offer nasopharyngeal biopsies when the cervical node sampling reveals EBV‐positive metastasis. Where available, NBI should be used to help detect and target biopsies in non‐oropharyngeal subsites. [ABSTRACT FROM AUTHOR]

Objective: To compare the soft tissue measurements of the upper lip and the nose on the cleft side and the noncleft side before surgery, immediately after cheiloplasty and two months after surgery. Design: Descriptive clinical study with one group, prospective. Setting: Department of Odonto-Stomatology, Children's Hospital 1, at Ho Chi Minh City - Vietnam. Patients: 31 patients with a unilateral complete cleft lip participated in this study, 30 patients were evaluated at the time two months after surgery. Interventions: Interventions include PNAM and cheiloplasty by modified Millard technique. Main Outcome Measures: Patients proceed to acquire 3D images of lips and nose, define landmarks and measure dimensions. There are 11 evaluators to be compared, p < 0.05 was considered statictical significance. Results: After two months of surgery, on cleft side and noncleft side, the lengths of the upper lip were 10.87 ± 0.80 and 11.92 ± 0.78 (mm), the widths of the upper lip were 16.06 ± 1.10 and 16.40 ± 1.02 (mm), the heights of the nostril were 4.85 ± 0.44 and 5.93 ± 0.43 (mm), the lengths of columella were 4.08 ± 0.37 and 4.93 ± 0.38 (mm), and the widths of the nostril were 9.07 ± 0.37 and 8.37 ± 0.40 (mm). Conclusion: Cheiloplasty by modified Millard technique on the patients who used PNAM showed that after two months of surgery, the morphology of the upper lip and nose has a slight disproportion with the nasolabial measurements of the cleft side being smaller than on the noncleft side. [ABSTRACT FROM AUTHOR]

Nasotracheal intubation can reveal unexpected findings like a foreign body in the airway. In such instances, expeditious decision-making is crucial to achieve ideal outcomes. This case report describes a petroleum jelly–based foreign body discovered in the nasopharynx during nasotracheal intubation and the subsequent airway management. A 64-year-old man with no prior history of adverse anesthetic events presented to an oral surgery office for extraction of teeth and placement of implants. While video laryngoscopy for nasotracheal intubation was performed, a blue foreign body was discovered inside the tip of the nasal endotracheal tube. Subsequent attempts to locate the source of the foreign body revealed in the nasopharynx a strip of blue gelatinous foreign body which was removed with suction. Due to the persistent presence of foreign body residues in the nasopharynx, orotracheal intubation was performed. Nasopharyngeal foreign bodies may elude even the most thorough preoperative medical history review and airway assessment. Therefore, it is reasonable for practitioners to ask explicitly about any foreign bodies in the nasal passages. Practitioners should become familiar with cognitive aids for relevant airway emergency management techniques and equipment for expeditious decision-making when unexpected foreign bodies are found. [ABSTRACT FROM AUTHOR]

Extra-medullary plasmacytoma (EMP) is a rare tumor that most frequently occur in the head and neck region, with the paranasal sinuses, nasopharynx and tonsils being the most common sites. Diagnostic criteria for EMP include histological confirmation of a solitary plasma cell lesion, the presence of fewer than 5% plasma cells in the bone marrow, and the absence of end-organ damage commonly associated with multiple myeloma. CT scans and MRI features are nonspecific and can mimic those of other conditions. EMP of the nasopharynx presents as a slow-growing, radiosensitive mass with a favorable prognosis.We present the case of a 55-year-old male patient who sought medical attention for recurrent epistaxis. An endoscopic examination revealed a tumor located in the nasopharynx, which was confirmed by MRI as a confined nasopharyngeal mass. Subsequent pathology studies, laboratory results, and bone marrow biopsy were consistent with a solitary EMP of the nasopharynx.

Nasopharyngeal middle turbinate is an extremely rare anatomical variant which has been suggested to correlate with chronic rhinosinusitis. However, due the rarity of this variant, its clinical implications remain inadequately defined. Here, we present a case of a 37-year-old male patient with bilateral nasopharyngeal middle turbinates, one of which had a large cystic lesion causing nasal obstruction. The patient's presentation, radiological and endoscopic findings, as well as the management approach are discussed in the context of the limited literature on this topic.

Recurrent acute otitis media (rAOM) poses a significant challenge in children aged 1 to 6 years, characterized by frequent and treatment-resistant ear infections. While existing studies predominantly focus on alterations in the nasopharyngeal microbiome associated with rAOM, our research explores the understudied association with the gut microbiome. In this cross-sectional observational prospective study, we enrolled 35 children aged 1 to 6 years during the 2021/2022 cold season. The test group comprised children with rAOM (n = 16), and the control group consisted of generally healthy children (n = 19). Samples (stool and nasopharyngeal swabs) were collected in late spring to ensure an antibiotic-free period. Detailed metadata was gathered through a questionnaire examining factors potentially influencing microbiota. Microbiota composition was assessed through amplicon sequencing of the V3–V4 region of the 16S rRNA gene. Our findings revealed limited alterations in gut microbiota composition among children with rAOM compared to healthy controls. Six bacterial taxa (Veillonella, Lachnospiraceae, Ruminococcaceae, Lachnospiraceae, Bacteroides and Blautia) were differentially represented with weak statistical significance. However, several bacterial taxa displayed correlations with multiple consecutive infections, with Turicibacter showing the most significant association. Additionally, day care centre attendance emerged as a potent gut microbiota modifier, independent of rAOM. Although our study identified limited differences in gut microbiota composition between children with rAOM and healthy controls, the observed correlations between the number of infections and specific bacterial taxa suggest a potential link between rAOM and the gut microbiota, warranting further investigation. [ABSTRACT FROM AUTHOR]

Abstract Background Since many different conclusions of craniofacial anomalies and their relation to the posterior airway space coexist, this comparative clinical study investigated the palatal morphology concerning volumetric size, posterior airway space dimension and the adenoids of patients with and without a cleft before orthodontic treatment. Methods Three-dimensional intraoral scans and cephalometric radiographs of n = 38 patients were used for data acquisition. The patients were divided into three groups: unilateral cleft lip and palate (n = 15, 4 female, 11 male; mean age 8.57 ± 1.79 years), bilateral cleft lip and palate (n = 8, 0 female, 8 male; mean age 8.46 ± 1.37 years) and non-cleft control (n = 15, 7 female, 8 male; mean age 9.03 ± 1.02 years). The evaluation included established procedures for measurements of the palatal morphology and posterior airway space. Statistics included Shapiro-Wilk-Test and simple ANOVA (Bonferroni) for the three-dimensional intraoral scans and cephalometric radiographs. The level of significance was set at p

Abstract Background There is currently scarcity of information on small cell neuroendocrine carcinoma of the nasopharynx (SCNEC-nasopharynx). It is believed that this type of cancer is not associated with Epstein-Barr virus (EBV) infection and is indistinguishable from classic SCNEC occurring in other organs. Materials and methods Herein we provided 3 cases of nasopharyngeal mass in our hospital, two males and one female. On admission, these patients were considered nasopharyngeal carcinoma with lymph node metastasis, and one of them had liver metastasis. The nasopharyngeal mucosal tissues were biopsied for pathological examination including immunohistochemistry and in situ hybridization. PubMed database was searched for articles about SCNEC-nasopharynx published up to April 2024 in any language. Result The 3 cases had similar histological features of SCNEC in other organs but differed in rich- tumor-infiltrating lymphocytes (TILs). All of them stained for pancytokeratin (panCK) and epidermal growth factor receptor (EGFR). Case 1 and Case 2 diffusely expressed insulinoma-associated protein 1(INSM-1) and synaptophysin (Syn), Case 3 strongly stained for CD56 and Syn. Immunostaining of all 3 cases for p40, p63, TTF-1, CK20, S-100 and NUT showed negative. BRG-1, INI-1 and Rb were retained. And p53 all showed wild-type expression. The Ki-67 labeling indiced of case 1, 2, and 3 were 80%, 90%, and 80%, respectively. In situ hybridization showed strong and uniform nuclear positivity of EBV-encoded small RNAs (EBER) in the neoplastic cells of 3 cases. Conclusion EBV-positive SCNEC-nasopharynx was exactly rare. The origin of this tumor is still controversial. It may originate from EBV-infected mucosal epithelium like nasopharyngeal carcinoma. Based on our cases and relevant literature, we found EBV-positive SCNEC-nasopharynx as a probably site-specific subtype of SCNEC with differing pathogenetic mechanism. The subtype not only virus positivity but also that it was associated with TILs and did not show p53 or Rb alterations by immunohistochemistry. It may be more responsive to treatment and have a better prognosis than classic SCNEC. We will continue to follow-up these patients and collect additional cases to further understand the unique biology of this rare solid tumor.

Juvenile nasopharyngeal angiofibroma is a benign, highly vascularized tumor that occurs mainly in children and young men of pubertal age 9-19 years old. Often manifested by difficulty in nasal breathing and nosebleeds. We report a 16-year-old boy with complaints of a complete absence of nasal breathing, nosebleeds, snoring, nasality, exophthalmos on the right side, visual impairment. undergoing therapeutic treatment for rhinosinusitis and adenoid vegetations for 5 months and an unsuccessful attempt at adenotomy in history. When contacting the Department of Oncology and Pediatric Surgery Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology according to imaging with contrast enhancement juvenile angiofibroma of the nasopharynx IVA stage to Fisch-Andrews with a 30 % increase in volume in 2 months. The patient was initiated on neoadjuvant therapy Sirolimus as part of a pilot phase of a prospective clinical trial. After 9 months of taking the drug, there is a reduction in the tumor by 37 %, restoration of vision, clinical and radiological improvement.

While severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) is characterized by impaired induction of interferons (IFNs) and IFN-stimulated genes (ISGs), the IFNs and ISGs in upper airway is essential to restrict the spread of respiratory virus. Here, we identified the prominent IFN and ISG upregulation in the nasopharynx (NP) of mild and even severe coronavirus disease 2019 (COVID-19) patients (CoV2+) in Omicron era and to compare their clinical outcome depending on the level of IFNs and ISGs. Whereas the induction of IFNB was minimal, transcription of IFNA, IFNG, and IFNLs was significantly increased in the NP of CoV2 + patients. IFNs and ISGs may be more upregulated in the NP of CoV2 + patients at early phases of infection according to viral RNA levels and this is observed even in severe cases. IFN-related innate immune response might be characteristic in macrophages and monocytes at the NP and the CoV2 + patients with higher transcription of IFNs and ISGs in the NP showed a correlation with good prognosis of COVID-19. This study presents that IFNs and ISGs may be upregulated in the NP, even in severe CoV2 + patients depending on viral replication during Omicron-dominant period and the unique IFN-responsiveness in the NP links with COVID-19 clinical outcomes. [ABSTRACT FROM AUTHOR]

Nasopharyngeal carcinoma (NPC) arises from the mucosal epithelium of the nasopharynx and is frequently located in the pharyngeal crypts. This is a highly aggressive malignant tumor that frequently leads to distant metastases in many cases and poses a significant public health challenge, particularly in certain geographic regions globally. This review discusses the epidemiology, risk factors, diagnosis, and treatment options for NPC, emphasizing the importance of early detection and comprehensive management strategies in improving patient outcomes. Moreover, the article explores the intricate mechanisms that cause NPC. Comprehending these fundamental principles can assist in creating specific prevention and therapy approaches for NPC. Recent advances in diagnostic methods, including imaging tests and molecular biomarkers, are emphasized to improve early diagnosis and individualized treatment strategies for individuals with NPC. The review also explores the most recent advancements in treating early-stage (stage I and II) NPC patients, highlighting the changing landscape of individualized therapy approaches for this particular set of patients. [ABSTRACT FROM AUTHOR]

KEY POINTS Human nasal cavity samples were collected, and presence of microplastics were evaluated. Microplastics were present, and major types were polyethylene, polyester, acrylic polymer, and polypropylene. Further research is needed regarding microplastics and its clinical impact on human nasal cavity. [ABSTRACT FROM AUTHOR]

Despite neweffective medications, patients with spinal muscular atrophy types 1-3 can continue to have inadequate cough flows to prevent episodes of acute respiratory failure. Ventilator unweanable intubated patients are thought to require tracheostomy tubes. As a result, potentially beneficial medications may be discontinued and patients die despite receiving these medications. Three cases are presented of medically treated, physically strengthening children, with spinal muscular atrophy type 1. All three subsequently died or underwent tracheotomy. However, there is no evidence of extubation attempts to noninvasive ventilatory support settings or optimal mechanical insufflation-exsufflation despite this option being described to be over 98% successful for extubating unweanable medically untreated children with spinal muscular atrophy 1. [ABSTRACT FROM AUTHOR]

Background and aim: Head and neck nuclear protein of testis carcinoma (HN‐NUT) is a rare form of carcinoma diagnosed by NUT immunohistochemistry positivity and/or NUTM1 translocation. Although the prototype of HN‐NUT is a primitive undifferentiated round cell tumour (URC) with immunopositivity for squamous markers, it is our observation that it may assume variant histology or immunoprofile. Methods: We conducted a detailed clinicopathological review of a large retrospective cohort of 30 HN‐NUT, aiming to expand its histological and immunohistochemical spectrum. Results: The median age of patients with HN‐NUT was 39 years (range = 17–86). It affected the sinonasal tract (43%), major salivary glands (20%), thyroid (13%), oral cavity (7%), larynx (7%), neck (7%) and nasopharynx (3%). Although most cases of HN‐NUT (63%) contained a component of primitive URC tumour, 53% showed other histological features and 37% lacked a URC component altogether. Variant histological features included basaloid (33%), differentiated squamous/squamoid (37%), clear cell changes (13%), glandular differentiation (7%) and papillary architecture (10%), which could co‐exist. While most HN‐NUT were positive for keratins, p63 and p40, occasional cases (5–9%) were entirely negative. Immunopositivity for neuroendocrine markers and thyroid transcription factor‐1 was observed in 33 and 36% of cases, respectively. The outcome of HN‐NUT was dismal, with a 3‐year disease specific survival of 38%. Conclusions: HN‐NUT can affect individuals across a wide age range and arise from various head and neck sites. It exhibits a diverse spectrum of histological features and may be positive for neuroendocrine markers, potentially leading to underdiagnosis. A low threshold to perform NUT‐specific tests is necessary to accurately diagnose HN‐NUT. [ABSTRACT FROM AUTHOR]

Background: Since many different conclusions of craniofacial anomalies and their relation to the posterior airway space coexist, this comparative clinical study investigated the palatal morphology concerning volumetric size, posterior airway space dimension and the adenoids of patients with and without a cleft before orthodontic treatment. Methods: Three-dimensional intraoral scans and cephalometric radiographs of n = 38 patients were used for data acquisition. The patients were divided into three groups: unilateral cleft lip and palate (n = 15, 4 female, 11 male; mean age 8.57 ± 1.79 years), bilateral cleft lip and palate (n = 8, 0 female, 8 male; mean age 8.46 ± 1.37 years) and non-cleft control (n = 15, 7 female, 8 male; mean age 9.03 ± 1.02 years). The evaluation included established procedures for measurements of the palatal morphology and posterior airway space. Statistics included Shapiro-Wilk-Test and simple ANOVA (Bonferroni) for the three-dimensional intraoral scans and cephalometric radiographs. The level of significance was set at p < 0.05. Results: The palatal volume and cephalometric analysis showed differences between the three groups. The palatal volume, the superior posterior face height and the depth of the bony nasopharynx of patients with cleft lip and palate were significantly smaller than for non-cleft control patients. The superior posterior face height of bilateral cleft lip and palate patients was significantly smaller than in unilateral cleft lip and palate patients (BCLP: 35.50 ± 2.08 mm; UCLP: 36.04 ± 2.95 mm; p < 0.001). The percentage of the adenoids in relation to the entire nasopharynx and the angle NL/SN were significantly bigger in patients with cleft lip and palate than in the non-cleft control. In particular, the palatal volume was 32.43% smaller in patients with unilateral cleft lip and palate and 48.69% smaller in patients with bilateral cleft lip and palate compared to the non-cleft control. Conclusions: Skeletal anomalies relate to the dimension of the posterior airway space. There were differences among the subjects with cleft lip and palate and these without a cleft. This study showed that the morphology of the palate and especially transverse deficiency of the maxilla resulting in smaller palatal volume relates to the posterior airway space. Even the adenoids seem to be affected, especially for cleft lip and palate patients. [ABSTRACT FROM AUTHOR]

Background: Small infants experience a myriad of stimuli while in the Neonatal Intensive Care Unit (NICU), with many being painful or stressful experiences, although medically necessary. Purpose: To determine what is known about nonpharmacological developmental care interventions used in the NICU to mitigate procedural pain of infants born under 32 weeks gestation. Search/Strategy: Five electronic databases were searched: Medline, CINAHL, Scopus, Embase and the Cochrane Library. The inclusion criteria were as follows: experimental and nonexperimental studies from all publication years with infants born at less than 32 weeks gestational age; peer-reviewed research articles studying nonpharmacological interventions such as skin-to-skin care, facilitated tucking, nonnutritive sucking, hand hugs, and swaddling; and English language articles. Our search yielded 1435 articles. After the elimination of 736 duplicates, a further 570 were deemed irrelevant based on their abstract/titles. Then, 124 full-text articles were analyzed with our inclusion and exclusion criteria. Findings: Twenty-seven studies were reviewed. Sucrose, facilitated tucking, pacifier, skin-to-skin care, and human milk appeared to lessen pain experienced during heel sticks, suctioning, nasogastric tube insertions, and echocardiograms. All nonpharmacological interventions failed to prove efficacious to adequately manage pain during retinopathy of prematurity (ROP) examinations. Implications for Practice: Evidence review demonstrates that healthcare practitioners should use nonpharmacological measures to help prevent pain from day-to-day procedures in the NICU including heel sticks, nasogastric tube insertions, suctioning, echocardiograms, and subcutaneous injections. Implications for Research: Future research is necessary to better understand and measure how pain is manifested by very small premature infants. Specific research on mitigating the pain of examinations for retinopathy of prematurity is also needed. [ABSTRACT FROM AUTHOR]

Chronic rhinosinusitis (CRS) is a complex inflammatory condition affecting the nasal and paranasal sinus mucosa. Gastroesophageal reflux disease (GERD) has been implicated as a potential exacerbating factor in CRS, but the specific endoscopic features of nasopharyngeal pathology in this context remain poorly understood. Background and Objectives: Chronic rhinosinusitis is a multifactorial disease with various underlying etiologies, including inflammation, anatomical factors, and environmental triggers. While gastroesophageal reflux disease has been suggested as a potential contributor to chronic rhinosinusitis, the specific endoscopic features indicative of nasopharyngeal pathology in CRS patients with GERD symptoms have not been clearly elucidated. Our aim is to identify specific endoscopic features of nasopharyngeal pathology in patients with CRS associated with GERD symptoms and to propose a method for assessing the influence of gastroesophageal reflux disease on the mucosal layer of the nose and nasopharynx. Materials and Methods: We conducted a cross-sectional observational study involving 521 adult patients presenting with symptoms suggestive of CRS. From this cohort, 95 patients with the highest scores on the Reflux Symptom Index (RSI) and Reflux Symptom Score-12 (RSS-12) questionnaires were selected as the main group. Endoscopic examinations were performed to assess the nasal and nasopharyngeal mucosa. Results: Our study revealed significant alterations in the nasopharyngeal mucosa of patients with CRS associated with GERD symptoms. Increased vascularity of the nasopharyngeal mucosa was observed in 91 patients (95.7%), while hypertrophy was noted in 83 patients (87.4%). Mucus was present in the nasopharynx of 77 patients (81.1%), exhibiting varying characteristics of color and consistency. Asymmetric hypertrophy of the oropharyngeal mucosa was noted in 62 patients (65.3%). Conclusions: We propose a method for assessing the influence of gastroesophageal reflux disease on the mucosal layer of the nose and nasopharynx, which may aid in diagnostic and management decisions. Further research is warranted to explore the potential impact of GERD symptoms on the course and severity of CRS exacerbations. [ABSTRACT FROM AUTHOR]

Background: There is currently scarcity of information on small cell neuroendocrine carcinoma of the nasopharynx (SCNEC-nasopharynx). It is believed that this type of cancer is not associated with Epstein-Barr virus (EBV) infection and is indistinguishable from classic SCNEC occurring in other organs. Materials and methods: Herein we provided 3 cases of nasopharyngeal mass in our hospital, two males and one female. On admission, these patients were considered nasopharyngeal carcinoma with lymph node metastasis, and one of them had liver metastasis. The nasopharyngeal mucosal tissues were biopsied for pathological examination including immunohistochemistry and in situ hybridization. PubMed database was searched for articles about SCNEC-nasopharynx published up to April 2024 in any language. Result: The 3 cases had similar histological features of SCNEC in other organs but differed in rich- tumor-infiltrating lymphocytes (TILs). All of them stained for pancytokeratin (panCK) and epidermal growth factor receptor (EGFR). Case 1 and Case 2 diffusely expressed insulinoma-associated protein 1(INSM-1) and synaptophysin (Syn), Case 3 strongly stained for CD56 and Syn. Immunostaining of all 3 cases for p40, p63, TTF-1, CK20, S-100 and NUT showed negative. BRG-1, INI-1 and Rb were retained. And p53 all showed wild-type expression. The Ki-67 labeling indiced of case 1, 2, and 3 were 80%, 90%, and 80%, respectively. In situ hybridization showed strong and uniform nuclear positivity of EBV-encoded small RNAs (EBER) in the neoplastic cells of 3 cases. Conclusion: EBV-positive SCNEC-nasopharynx was exactly rare. The origin of this tumor is still controversial. It may originate from EBV-infected mucosal epithelium like nasopharyngeal carcinoma. Based on our cases and relevant literature, we found EBV-positive SCNEC-nasopharynx as a probably site-specific subtype of SCNEC with differing pathogenetic mechanism. The subtype not only virus positivity but also that it was associated with TILs and did not show p53 or Rb alterations by immunohistochemistry. It may be more responsive to treatment and have a better prognosis than classic SCNEC. We will continue to follow-up these patients and collect additional cases to further understand the unique biology of this rare solid tumor. [ABSTRACT FROM AUTHOR]

Background: The coronavirus disease 2019 (COVID-19) pandemic is associated with increases in morbidity and mortality worldwide. The mechanisms of how SARS-CoV-2 may cause cardiovascular (CV) complications are under investigation. The aim of the study was to assess the impact of the COVID-19 pandemic on CV risk. Methods: These are single-centre Bialystok PLUS (Poland) population-based and case‒control studies. The survey was conducted between 2018 and 2022 on a sample of residents (n = 1507) of a large city in central Europe and patients 6–9 months post-COVID-19 infection (n = 126). The Systematic Coronary Risk Estimation 2 (SCORE2), the Systematic Coronary Risk Estimation 2-Older Persons (SCORE2-OP), the Cardiovascular Disease Framingham Heart Study and the LIFEtime-perspective model for individualizing CardioVascular Disease prevention strategies in apparently healthy people (LIFE-CVD) were used. Subsequently, the study populations were divided into CV risk classes according to the 2021 ESC Guidelines on cardiovascular disease prevention in clinical practice. Results: The study population consisted of 4 groups: a general population examined before (I, n = 691) and during the COVID-19 pandemic (II, n = 816); a group of 126 patients post-COVID-19 infection (III); and a control group matched subjects chosen from the pre-COVID-19 pandemic (IV). Group II was characterized by lower blood pressure, low-density lipoprotein cholesterol (LDL-c) and high-density lipoprotein cholesterol (HDL-c) values than group I. Group III differed from the control group in terms of lower LDL-c level. There was no effect on CV risk in the general population, but in the population post-COVID-19 infection, CV risk was lower using FS-lipids, FS-BMI and LIFE-CVD 10-year risk scores compared to the prepandemic population. In all subgroups analysed, no statistically significant difference was found in the frequency of CV risk classes. Conclusions: The COVID-19 pandemic did not increase the CV risk calculated for primary prevention. Instead, it prompted people to pay attention to their health status, as evidenced by better control of some CV risk factors. As the COVID-19 pandemic has drawn people's attention to health, it is worth exploiting this opportunity to improve public health knowledge through the design of wide-ranging information campaigns. [ABSTRACT FROM AUTHOR]

Background: There is an increasing disease trend for SARS-COV-2, so need a quick and affordable diagnostic method. It should be highly accurate and save costs compared to other methods. The purpose of this research is to achieve these goals. Methods: This study analyzed 342 samples using TaqMan One-Step RT-qPCR and fast One-Step RT-LAMP (Reverse Transcriptase Loop-Mediated Isothermal Amplification). The One-Step LAMP assay was conducted to assess the sensitivity and specificity. Results: The research reported positive samples using two different methods. In the RT-LAMP method, saliva had 92 positive samples (26.9%) and 250 negative samples (73.09%) and nasopharynx had 94 positive samples (27.4%) and 248 negative samples (72.51%). In the RT-qPCR method, saliva had 86 positive samples (25.1%) and 256 negative samples (74.8%) and nasopharynx had 93 positive samples (27.1%) and 249 negative samples (72.8%). The agreement between the two tests in saliva and nasopharynx samples was 93% and 94% respectively, based on Cohen's kappa coefficient (κ) (P < 0.001). The rate of sensitivity in this technique was reported at a dilution of 1 × 101 and 100% specificity. Conclusions: Based on the results of the study the One-Step LAMP assay has multiple advantages. These include simplicity, cost-effectiveness, high sensitivity, and specificity. The One-Step LAMP assay shows promise as a diagnostic tool. It can help manage disease outbreaks, ensure prompt treatment, and safeguard public health by providing rapid, easy-to-use testing. [ABSTRACT FROM AUTHOR]

Mantle cell lymphoma (MCL) is a subtype of B-cell lymphoma derived from CD5-positive antigen-naïve pre-germinal center B-cells within the mantle zone that surrounds normal germinal center follicles. MCL comprises approximately 5 to 10% of all lymphomas. Tonsil is the most common location of MCL in the head and neck region, followed by the nasopharynx. Primary MCL involving the nasopharynx is extremely rare. Its clinical course is very aggressive with frequent relapses after conventional chemotherapy. It always presents as a protruding mass on the mucosal lining of the pharyngeal cavity. Here, we report a new nodular type of MCL in the nasopharynx. Endoscopically, this case showed multiple nodular lesions of primary MCL on the nasopharyngeal mucosa. This unique finding has not been reported yet in the English literature. These lesions should be differentiated from simple pharyngeal infections or benign lymphoid hyperplasia in the nasopharynx. [ABSTRACT FROM AUTHOR]

Introduction Adenoidectomy is one of the most common procedures performed by otolaryngologists. Traditional adenoid curettage is performed blindly, which can result in inadequate removal of the adenoid and injury to the surrounding structures. Objective To perform transnasal endoscopic examinations to assess the nasopharynx after conventional curettage adenoidectomy. Methods The present prospective study included 100 children with a mean age of 4.2 ± 3.07 years. It is composed of two steps: conventional curettage adenoidectomy by a resident trainee; and endoscopic evaluation of the nasopharynx through a 0° telescope to assess adenoidal remnants, injury to the surgical field or adjacent structures, and bleeding points. Results Adenoid remnants were observed in 42% of the cases after conventional adenoid curettage in multiple locations, such as the roof of the nasopharynx over the choana (24%), the tubal tonsil (12%), the posterior pharyngeal wall (4%), and the posterior end of the nasal septum (2%). Injury to the surgical field and adjacent structures was observed in 46% of the cases (posterior pharyngeal wall: 23%; lateral pharyngeal wall: 11%; Passavant ridge: 10%; and the Eustachian tube orifice: 2%). Endoscopic bleeding was observed in 29% of the cases; 13% of the cases were from adenoid remnants, 10%, from the mucosa, and 6%, from the pharyngeal muscles. Bleeding was mild in 19% of the cases, moderate in 9%, and severe in 1%. Conclusion Endoscopic evaluation of the nasopharynx following conventional adenoid curettage provides important data regarding adenoid remnants, injury to the surgical field or nearby structures, and bleeding points, which aids in the provision of optimal care and in the achievement of a better outcome. [ABSTRACT FROM AUTHOR]

Background: Artificial airways are essential in various clinical settings to maintain a patient's airway and provide necessary support for ventilation and oxygenation. These devices are commonly temporary and come in several types, each serving specific purposes. Understanding the indications, types, and proper care of artificial airways is crucial for health care professionals to ensure patients receive optimal care and prevent complications. Objective: This article aims to review the indications for using artificial airways and discuss the most commonly used types, including supraglottic airway devices, endotracheal tubes, tracheostomy tubes, and laryngectomy tubes. It also provides insights into the procedures involved in intubation and percutaneous tracheostomy and offers guidance on patient management, emphasizing assessment, oral care, suctioning, and humidification for patients with these airway devices. Conclusion: This article underscores the significance of understanding artificial airways, not just as a set of skills but as a commitment to patient welfare. Health care professionals who master the knowledge and care of these devices can significantly contribute to their patients' well-being and quality of life. [ABSTRACT FROM AUTHOR]

Objective: This study aims to determine the frequency of pathogen detection by real-time polymerase chain reaction (PCR), the frequency of pathogen isolation by culture; and compare the value of real-time PCR and culture of nasopharyngeal aspiration samples in patients with severe community-acquired pneumonia (sCAP). Materials and Methods: It was a prospective and descriptive study. All pediatric patients diagnosed with sCAP were performed real-time PCR and culture of nasopharyngeal aspiration samples. Results: A total of 336 patient samples were obtained from children with sCAP. Real-time PCR detected pathogens in 312 patients (92.9%), while culture isolated bacteria in 228 patients (67.9%). Coinfections were reported in 279 cases (83.0%) through real-time PCR. The frequency of agreement between culture and real-time PCR was quite high (P < .001). Conclusion: Real-time PCR demonstrated more ability for detecting microorganisms than culture. This finding highlighted the value of real-time PCR for targeting pathogens in children with sCAP, particularly in cases involving complex pathogens or those requiring timely identification. [ABSTRACT FROM AUTHOR]

Key Clinical Message: In cases adjacent to critical structures, such as the internal carotid artery, surgeons should meticulously explore the feasibility of surgery before declaring the neoplasm unresectable. Salvage treatment for locally recurrent carcinoma of the nasopharynx constitutes a unique challenge. Surgery remains the gold standard treatment modality. Endoscopic nasopharyngectomy is considered a safe and feasible procedure overcoming the morbidities of an open surgery. Tumor adjacency to the internal carotid artery (ICA) is not an absolute contradiction for the endoscopic approach. Even in cases adjacent to critical structures, surgeons should meticulously explore the feasibility of surgery before declaring the neoplasm unresectable. We present the case of a 56‐year‐old male with locally recurrent adenoid cystic carcinoma (AdCC) of the nasopharynx adjacent to the ICA treated with endoscopic nasopharyngectomy. [ABSTRACT FROM AUTHOR]

The controversial topic of oral feeding while on noninvasive ventilation remains at the forefront of preterm intensive care management. The intersection of pulmonary, neurologic, and gastrointestinal maturation coalesces at a postmenstrual age that requires changes in practices compared with those used in older infants. Various animal models in the past decades aimed to gain physiological knowledge of noninvasive ventilation effects on the suck–swallow–breathe coordination sequence. However, the preterm infant poses nuanced anatomic challenges. Although concerns for oral feeding while on noninvasive ventilation include aspiration risks and potential inpatient obstacles, there is evidence to support the feasibility, initiation, and progression of oral feedings while an infant is supported on high-flow nasal cannula and continuous positive airway pressure. There is evidence to support that this may accelerate attainment of oral feeding milestones and, thus, eventual hospital discharge. More recent multidisciplinary institutional protocols may provide cautious guidance on evaluation and algorithms to assess infants who may benefit from initiation and advancement of oral feeding versus awaiting further maturation. [ABSTRACT FROM AUTHOR]

Background/Aim: Postnasal drip may be related to several diseases, but not all patients are clearly diagnosed. Patients with chronic, idiopathic postnasal drip symptoms are easily overlooked, and their clinical features are yet to be identified. This study aimed to analyze the clinical features and response to first generation antihistamine-decongestant therapy in patients with chronic idiopathic postnasal drip, suggesting it as a distinct entity. Patients and Methods: A retrospective cohort study involving 157 chronic idiopathic postnasal drip patients was conducted, analyzing demographics, symptoms, and treatment response to first-generation antihistamines and nasal decongestants. Results: Mean age of patients was 55.4±17.0 years old. Median duration of symptom was 36 months (range=12-66 months) and severity in the visual analogue scale was 7 (range=5-8). Throat discomfort was the most frequently associated symptom (73.7%). Cough was recorded in 30.3% of patients. Viscosity of postnasal drip was associated with rhinorrhea and throat discomfort. Of the patients, 71.6% responded positively to 1st generation antihistamine-decongestant medication. However, 25.9% of patients presented symptom re-occurrence. Patients with nasal stiffness or persistent symptoms presented a higher reoccurrence rate compared to others. Conclusion: This study outlines the clinical features of patients with chronic idiopathic postnasal drip and suggests it as a distinctive entity., This proposal aims to enhance diagnostic precision and promote further research in the field. [ABSTRACT FROM AUTHOR]

Objective: The aim of this study was to evaluate the volumetric airway changes using three-dimensional images following unilateral vertical mandibular distraction osteogenesis (uVMD) among patients with hemifacial microsomia (HFM). Design: This retrospective study analyzed cone-beam computed tomography (CBCT) scans of patients with HFM at three different timepoints; pretreatment (T0), posttreatment (T1), and at least 6 months post-distraction (T2). The individuals underwent uVMD between December 2018-Januaray 2021. The nasopharyngeal (NP) volume, oropharyngeal (OP) volume, and the area of maximum constriction (MC) were measured. Wilcoxon signed-rank test was used to compare the airway volumes between T0-T1, T1-T2, and T0-T2. Results: Five patients met the inclusion criteria (mean age = 10.4 years; 1 female, 4 males). Intraclass correlation analysis showed excellent interrater reliability (r >.86, P <.001). Posttreatment, the OP airway volume exhibited a significant mean increase of 56% (P =.043) from T0 to T1, but decreased from T1-T2 by 13%. Likewise, the total airway volume presented with a significant mean increase of 48% between T0-T1 (P =.044), and a decrease of 7% from T1-T2. The changes in the NP airway volume and area of MC were not statistically significant (P >.05), but an increase in the mean values were observed. Conclusion: Surgical intervention with uVMD may significantly increase the OP airway volume and the total airway volume among patients with HFM immediately after distraction. However, the statistical significance diminished after six months post-consolidation, but the mean percent change may remain of clinical significance. The NP volume did not seem to show significant changes in response to uVMD. [ABSTRACT FROM AUTHOR]

Stertor, a clinical sign associated with obstructive airway syndrome, is often observed in non‐brachycephalic dogs. This prospective, case‐control study aimed to compare soft palate dimensions, nasopharyngeal cross‐sectional area (CSA), and nasopharyngeal collapsibility at various locations in non‐brachycephalic dogs with and without stertor. A total of 50 dogs were recruited and stratified into control (n = 34) and stertor (n = 13) groups. Static and dynamic computed tomography was conducted without tracheal intubation, and the following variables were calculated: normalized soft palate length and thickness, normalized maximum and minimum nasopharyngeal CSAs (rCSAmax and rCSAmin), and nasopharyngeal collapsibility at the level of the cranial end of the soft palate, pterygoid hamulus, foramen lacerum, bony labyrinth, and caudal end of the soft palate. The stertor group demonstrated significantly lower rCSAmax and rCSAmin, as well as higher nasopharyngeal collapsibility compared with the control group, while no significant differences were noted in the soft palate dimension. Evaluating nasopharyngeal collapse at the foramen lacerum level was recommended due to the clear presence of identifiable bony landmarks and lower overlap in the nasopharyngeal collapsibility between dogs with and without stertor. Physical dimensions of the soft palate may not be the primary contributing factor to nasopharyngeal collapse and clinical signs in non‐brachycephalic dogs. [ABSTRACT FROM AUTHOR]

Background: This study aims to explore the applicability of narrow-band imaging (NBI) involving the Ni classification for the diagnosis of nasopharyngeal mucosal lesions in order to distinguish malignant tumours (NPT) from non-malignant lesions. Methods: Each patient (n = 53) with a suspected nasopharyngeal lesion underwent a trans-nasal flexible video endoscopy with an optical filter for NBI. We assessed the suspected area using white light imaging (WLI) in terms of location and morphology as well as the vascular pattern (using Ni classification of nasopharyngeal microvessels) and surrounding tissue by using NBI. Based on the results of the NBI and WLI, patients were classified into "positive" or "negative" groups. All lesions of the nasopharynx were biopsied and submitted for final histological evaluation. Results: NBI showed higher sensitivity, specificity, and accuracy than WLI. There was a significant correlation between the final histological result and the NBI pattern of the NPT: Chi2(1) = 31.34; p = 0.000001 and the WLI assessment of the NPT: Chi2(1) = 14.78; p = 0.00012. Conclusions: The assessment of the NPT in NBI using Ni NBI classification proved valuable in suspected mucosa assessment. NBI not only confirms the suspicious areas in WLI, but it also shows microlesions beyond the scope of WLI and allows for proper sampling. [ABSTRACT FROM AUTHOR]

Hyalinizing clear cell carcinomas (HCCCs) are infrequent, malignant tumors characterized by their low-grade nature. They typically originate from minor salivary glands. However, these tumors can potentially emerge in any location with minor salivary glands, including the nasopharynx. This report presents two cases of HCCC in females aged 61 and 72 years, with both tumors approximately 4 cm in size. In the first case, a 72-year-old female presented with recurrent bilateral epistaxis. Imaging studies revealed a nasopharyngeal mass, surgically excised, and histopathological analysis confirmed HCCC. Postoperatively, the patient received combined chemotherapy and radiotherapy, achieving a recurrence-free status 2.5 years later. The second case involves a 61-year-old female with a two-year history of bloody nasal discharge. Imaging studies identified a nasopharyngeal lesion, surgically removed, and histopathological examination confirmed HCCC. This patient underwent radiotherapy followed by combination chemotherapy with paclitaxel and carboplatin, displaying no signs of recurrence upon reevaluation after 10 months. These cases highlight the successful management of HCCC through a comprehensive, multimodal approach, integrating surgical intervention and adjuvant therapy. The favorable outcomes emphasize the significance of a thorough treatment strategy for HCCC in the nasopharynx, providing valuable insights for clinicians. Further studies are essential to enhance our understanding of this rare entity and refine treatment protocols for optimized patient outcomes. [ABSTRACT FROM AUTHOR]

Oral submucous fibrosis (OSF) is a chronic, progressive condition affecting the oral mucosa associated with areca nut consumption. It leads to restricted tongue movement, loss of papillae, blanching and stiffening of the mucosa, difficulty in opening the mouth, and challenges in eating due to inflammation and fibrosis. This report presents a rare case of oropharyngeal stenosis secondary to OSF in a 43-year-old male with a history of chewing betel nut. A surgical procedure similar to Uvulopalatopharyngoplasty was performed to excise the submucous oropharyngeal stenosis and to reconstruct the uvula, palatoglossal arch, and palatopharyngeal arch. At 8 years postoperatively, the patient exhibited a normal mouth opening and oropharyngeal aperture. [ABSTRACT FROM AUTHOR]

Lymphoepithelial carcinoma is an undifferentiated carcinoma with nonneoplastic lymphoplasmacytic infiltrate, mostly located in the nasopharynx, while it is extremely rare in the oropharynx. We present a rare case of lymphoepithelial carcinoma arising from palatine tonsil. A 81-year old male patient complained of dysphagia, hypersalivation and bloody sputum. Clinical examination revealed hypertrophy of the right palatine tonsil and ipsilateral cervical lymphadenopathy. Biopsy and histopathological analysis confirmed the diagnosis of lymphoepithelial carcinoma. Multi-slice computed tomography showed a 33×31×38 mm heterodense mass in the region of the right palatine tonsil, and 37×30 mm and 21×20 mm lymph nodes on the right side of the neck. The patient was reffered to an oncology council, which suggested radiotherapy and concurrent chemotherapy. Although rare in clinical practice, lymphoepithelial carcinoma should be considered in cases of tonsil cancer. [ABSTRACT FROM AUTHOR]

Solitary fibrous tumors (SFTs) belonging to a distinct group of mesenchymal tumors, was originally described by Klemper and Rabin in the pleura in year 1931. However, it can also be extra-pleural in origin. With tongue being the most common site involved in this region, epiglottis, larynx, thyroid, external auditory canal, lacrimal sac, hypoglossal nerve, parotid gland, sublingual gland, Para pharyngeal space, nasopharynx, scalp, gingiva, orbit and infratemporal fossa as well as paranasal sinuses and nasal cavities can also get involved. But SFTs involving nasal cavities and nasopharynx are quite uncommon, accounting for < 0.1% of all Sino-nasal neoplasms. Until now there have only been 40 cases of nasal SFT reported in literature. We report the case of an extraserosa solitary fibrous tumor arising from the nasal cavity with extension to the sphenoid sinus, a much rarer presentation of its type. Our case report is one of its type, emphasizing the need conducting further studies on the nature and management of the disease. [ABSTRACT FROM AUTHOR]

Introduction: Before tracheal intubation, it is essential to provide sufficient oxygen reserve for emergency patients with full stomachs. Recent studies have demonstrated that high-flow nasal oxygen (HFNO) effectively pre-oxygenates and prolongs apneic oxygenation during tracheal intubation. Despite its effectiveness, the use of HFNO remains controversial due to concerns regarding carbon dioxide clearance. The air leakage and unknown upper airway obstruction during HFNO therapy cause reduced oxygen flow above the vocal cords, possibly weaken the carbon dioxide clearance. Methods: Patients requiring emergency surgery who had fasted < 8 h and not drunk < 2 h were randomly assigned to the high-flow group, who received 100% oxygen at 30–60 L/min through nasopharyngeal airway (NPA), or the mask group, who received 100% oxygen at 8 L/min. PaO2 and PaCO2 were measured immediately before pre-oxygenation (T0), anesthesia induction (T1), tracheal intubation (T2), and mechanical ventilation (T3). The gastric antrum's cross-sectional area (CSA) was measured using ultrasound technology at T0, T1, and T3. Details of complications, including hypoxemia, reflux, nasopharyngeal bleeding, postoperative pulmonary infection, postoperative nausea and vomiting (PONV), and postoperative nasopharyngeal pain, were recorded. The primary outcomes were PaCO2 measured at T1, T2, and T3. The secondary outcomes included PaO2 at T1, T2, and T3, CSA at T1 and T3, and complications happened during this trial. Results: Pre-oxygenation was administered by high-flow oxygen through NPA (n = 58) or facemask (n = 57) to 115 patients. The mean (SD) PaCO2 was 32.3 (6.7) mmHg in the high-flow group and 34.6 (5.2) mmHg in the mask group (P = 0.045) at T1, 45.0 (5.5) mmHg and 49.4 (4.6) mmHg (P < 0.001) at T2, and 47.9 (5.1) mmHg and 52.9 (4.6) mmHg (P < 0.001) at T3, respectively. The median ([IQR] [range]) PaO2 in the high-flow and mask groups was 404.5 (329.1–458.1 [159.8–552.9]) mmHg and 358.9 (274.0–413.3 [129.0–539.1]) mmHg (P = 0.007) at T1, 343.0 (251.6–428.7 [73.9–522.1]) mmHg and 258.3 (162.5–347.5 [56.0–481.0]) mmHg (P < 0.001) at T2, and 333.5 (229.9–411.4 [60.5–492.4]) mmHg and 149.8 (87.0–246.6 [51.2–447.5]) mmHg (P < 0.001) at T3, respectively. The CSA in the high-flow and mask groups was 371.9 (287.4–557.9 [129.0–991.2]) mm2 and 386.8 (292.0–537.3 [88.3–1651.7]) mm2 at T1 (P = 0.920) and 452.6 (343.7–618.4 [161.6–988.1]) mm2 and 385.6 (306.3–562.0 [105.5–922.9]) mm2 at T3 (P = 0.173), respectively. The number (proportion) of complications in the high-flow and mask groups is shown below: hypoxemia: 1 (1.7%) vs. 9 (15.8%, P = 0.019); reflux: 0 (0%) vs. 0 (0%); nasopharyngeal bleeding: 1 (1.7%) vs. 0 (0%, P = 1.000); pulmonary infection: 4 (6.9%) vs. 3 (5.3%, P = 1.000); PONV: 4 (6.9%) vs. 4 (7.0%, P = 1.000), and nasopharyngeal pain: 0 (0%) vs. 0 (0%). Conclusions: Compared to facemasks, pre-oxygenation with high-flow oxygen through NPA offers improved carbon dioxide clearance and enhanced oxygenation prior to tracheal intubation in patients undergoing emergency surgery, while the risk of gastric inflation had not been ruled out. Trial registration: This trial was registered prospectively at the Chinese Clinical Research Registry on 26/4/2022 (Registration number: ChiCTR2200059192). [ABSTRACT FROM AUTHOR]

Objective: Endoscopy is routinely used to diagnose obstructive airway diseases. Currently, endoscopy is only a visualization technique and does not allow quantification of airspace cross‐sectional areas (CSAs). This pilot study tested the hypothesis that CSAs can be accurately estimated from depth maps created from virtual endoscopy videos. Study Design: Cross‐sectional. Setting: Academic tertiary medical center. Methods: Virtual endoscopy and depth map videos of the nasal cavity were digitally created based on anatomically accurate three‐dimensional (3D) models built from computed tomography scans of 30 subjects. A software tool was developed to outline the airway perimeter and estimate the airspace CSA from the depth maps. Two otolaryngologists used the software tool to estimate the nasopharynx CSA and the nasal valve minimal CSA (mCSA) in the left and right nasal cavities. Model validation statistics were performed. Results: Nasopharynx CSA had a median percent error of 3.7% to 4.6% when compared to the true values measured in the 3D models. Nasal valve mCSA had a median percent error of 22.7% to 33.6% relative to the true values. Raters successfully used the software tool to identify subjects with nasal valve stenosis (ie, mCSA < 0.20 cm2) with a sensitivity of 83.3%, specificity ≥ 90.7%, and classification accuracy ≥ 90.0%. Interrater and intrarater agreements were high. Conclusion: This study demonstrates that airway CSAs in 3D models can be accurately estimated from depth maps. The development of artificial intelligence algorithms to compute depth maps may soon allow the quantification of airspace CSAs from clinical endoscopies. [ABSTRACT FROM AUTHOR]