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Chronic rhinosinusitis

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https://www.readbyqxmd.com/read/29785413/multivariate-analysis-of-inflammatory-endotypes-in-recurrent-nasal-polyposis-in-a-chinese-population
#1
B Wei, F Liu, J Zhang, Y Liu, J Du, S Liu, N Zhang, C Bachert, J Meng
BACKGROUND: Chronic rhinosinusitis with nasal polyps (CRSwNP) remains a challenging clinical problem due to its propensity for recurrence. However, data on the frequency of CRSwNP recurrence after surgery in China are rare. METHODS: 78 CRSwNP patients undergoing functional endoscopic sinus surgery were followed-up for 8 years and classified into recurrent and non-recurrent groups. A cluster analysis of the CRSwNP based on inflammatory endotypes was performed, and the endotypes were secondarily matched with clinical phenotypes...
May 22, 2018: Rhinology
https://www.readbyqxmd.com/read/29784985/chronic-rhinosinusitis-with-nasal-polyps-is-characterized-by-dysbacteriosis-of-the-nasal-microbiota
#2
Thanit Chalermwatanachai, Ramiro Vilchez-Vargas, Gabriele Holtappels, Tim Lacoere, Ruy Jáuregui, Frederiek-Maarten Kerckhof, Dietmar H Pieper, Tom Van de Wiele, Mario Vaneechoutte, Thibaut Van Zele, Claus Bachert
Chronic rhinosinusitis with nasal polyp (CRSwNP) patients are often characterized by asthma comorbidity and a type-2 inflammation of the sinonasal mucosa. The mucosal microbiota has been suggested to be implicated in the persistence of inflammation, but associations have not been well defined. To compare the bacterial communities of healthy subjects with CRSwNP patients, we collected nasal swabs from 17 healthy subjects, 21 CRSwNP patients without asthma (CRSwNP-A), and 20 CRSwNP patients with co-morbid asthma (CRSwNP+A)...
May 21, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29782068/comparison-of-outcomes-following-culture-directed-vs-non-culture-directed-antibiotics-in-treatment-of-acute-exacerbations-of-chronic-rhinosinusitis
#3
Carol H Yan, Navarat Tangbumrungtham, Ximena A Maul, Yifei Ma, Jayakar V Nayak, Peter H Hwang, Zara M Patel
BACKGROUND: Acute exacerbations in patients with chronic rhinosinusitis (CRS) are often treated with courses of systemic antibiotics. Poor correlation between microbiologic culture results and the sinus microbiome in CRS has caused increased debate as to the relevance of culture-directed antibiotics. There is currently sparse data comparing outcomes of culture-directed antibiotics vs non-culture-directed antibiotics for treatment of CRS. METHODS: This work reports a retrospective review...
May 21, 2018: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/29781561/the-clinical-characteristics-and-histopathological-features-of-chronic-rhinosinusitis-with-unilateral-nasal-polyps-in-136-patients-in-southern-china
#4
Zhuo Chen, Yang Peng, Chew Lip Ng, Peng Jin, Jing Liu, Ying Ying Li, Yan Yan, Yan Hui Liu, Xin Lan Luo, Qian Hui Qiu, De Yun Wang
Based on the presence of nasal polyps (NP) on endoscopy, chronic rhinosinusitis (CRS) has been clinically divided into CRS with nasal polyps (CRSwNP) and CRS without nasal polyps (CRSsNP). While the majority of cases are bilateral, NPs can present unilaterally. CRS with unilateral NP (UNP) is the most common presentation in unilateral polyposis, but there have been few studies on UNP. Lee et al have shown that UNP had more favorable objective surgical outcomes than bilateral disease. This article is protected by copyright...
May 21, 2018: Clinical Otolaryngology
https://www.readbyqxmd.com/read/29781286/medical-therapy-versus-balloon-sinus-dilation-in-adults-with-chronic-rhinosinusitis-merlot-12-month-follow-up
#5
J Pablo Stolovitzky, Neelesh Mehendale, Keith E Matheny, William J Brown, Anthony A Rieder, Douglas R Liepert, Ewen Tseng, Andrew Gould
Background Chronic rhinosinusitis (CRS) is a devastating disease affecting nearly 30 million people in the United States. An interim analysis of data from the present study suggested that, in patients who had previously failed medical therapy, balloon sinus dilation (BSD) plus medical management (MM) provides a significant improvement in the quality of life (QOL) at 24 weeks postprocedure compared to MM alone. Objective The primary objective of this final analysis was to evaluate the durability of treatment effects through the 52-week follow-up...
January 1, 2018: American Journal of Rhinology & Allergy
https://www.readbyqxmd.com/read/29778823/toward-smart-nebulization-engineering-acoustic-airflow-to-penetrate-maxillary-sinuses-in-chronic-rhinosinusitis
#6
Shima Jowhari Moghadam, Laurent Navarro, Lara Leclerc, Sophie Hodin, Jérémie Pourchez
Treating chronic rhinosinusitis (CRS) by nebulization requires an airflow capable to deliver medication to deep target sites beyond the nasal valve. Fixed frequency acoustic airflow technology is currently available, mainly as post-surgical therapy, but still have not been able to realize the full potential of direct nose to paranasal sinuses delivery. Reported herein are the application of frequency sweep acoustic airflow and the optimization of its frequency range, sweep cycle duration and intensity. The resonant frequencies of the model's maxillary sinuses can be estimated using the Helmholtz resonator theory...
May 17, 2018: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/29778504/solitary-chemosensory-cells-are-a-primary-epithelial-source-of-interleukin-25-in-chronic-rhinosinusitis-with-nasal-polyps
#7
Michael A Kohanski, Alan D Workman, Neil N Patel, Li-Yin Hung, Julie P Shtraks, Bei Chen, Mariel Blasetti, Laurel Doghramji, David W Kennedy, Nithin D Adappa, James N Palmer, De'Broski R Herbert, Noam A Cohen
BACKGROUND: IL-25 can function as an early signal for the respiratory Type 2 response characteristic of allergic asthma and chronic rhinosinusitis with nasal polyps (CRSwNP). In the mouse gut, tuft cells are the epithelial source of IL-25. However, the source of human airway epithelial IL-25 has remained elusive. OBJECTIVE: In this study, we sought to determine if the solitary chemosensory cell (SCC) is the predominant source of IL-25 in the sinonasal epithelium...
May 17, 2018: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29777294/impact-of-residual-frontal-recess-cells-on-frontal-sinusitis-after-endoscopic-sinus-surgery
#8
Tsuguhisa Nakayama, Daiya Asaka, Akihito Kuboki, Tetsushi Okushi, Hiromi Kojima
PURPOSE: Endoscopic sinus surgery (ESS) is a well-established treatment for chronic rhinosinusitis (CRS). However, ESS for frontal sinusitis remains complicated and challenging. The aim of this study was to identify the relationship between residual frontal recess cells and primary ESS failure in the frontal sinus. METHODS: We prospectively collected information on 214 sides of 129 patients with CRS who underwent standard ESS from June 2010 to May 2011. To identify risk factors, we retrospectively analyzed clinical data and computed tomography (CT) images before and 3 months after surgery...
May 18, 2018: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29775032/-research-advance-of-microrna-in-the-pathogenesis-of-chronic-rhinosinusitis
#9
REVIEW
Y Ye, Q Luo, J Q Yu, J Zhang
Chronic rhinosinusitis (CRS) is a common disease of otorhinolaryngology head and neck surgery, manifested as nasal-sinus mucosal chronic inflammation. However, the pathogenesis of CRS is not clear. There are studies found that microRNA (miRNA) involved in CRS gene regulation. In this review, we summarize the expression of miRNAs in CRS, with the in-depth study of the role of miRNAs in CRS, and will further elucidate the pathogenesis of CRS.
February 2018: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29775027/-clinical-research-of-different-characteristics-of-fungal-ball-sinusitis
#10
M J Wang, B Zhou, Y C Li, S J Cui, Q Huang
Objective: The aim of this study is to investigate the clinical features of different subtypes of fungal ball sinusitis. Method: Four hundred and forty-nine cases with fungal ball rhinosinusitis (FBS) were involved in this retrospective analysis. The clinical features including symptoms, signs, and imaging scans, pathological results were all collected for each patient and the patients were classified into different subtypes according to these clinical features and the follow-up treatment. Result: In this retrospective study, 449 patients who diagnosed with fungal ball sinusitis were involved...
February 2018: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29771095/-a-progress-of-macrolides-therapy-for-chronic-rhinosinusitis
#11
REVIEW
S Shen, C S Wang
Macrolides are a type of antibiotics with macrocyclic lactone ring, which have been commonly used in the treatment of diffuse panbronchiolitis, chronic obstructive pulmonary disease, bronchial asthma, cystic fibrosis and other diseases. Macrolides not only have effect on antibacterial, but also effect on anti-inflammatory and immunoregulation. Chronic rhinosinusitis (CRS) is a common disease entity of infectious and inflammatory diseases that involved in nasal cavity and nasal sinuses, with various clinical phenotypes...
May 2018: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29768034/staphylococcus-aureus-induces-mucosal-type-2-immune-response-via-epithelial-cell-derived-cytokines
#12
Feng Lan, Nan Zhang, Gabriele Holtappels, Natalie De Ruyck, Olga Krysko, Koen Van Crombruggen, Harald Braun, Sebastian L Johnston, Nikos G Papadopoulos, Luo Zhang, Claus Bachert
RATIONALE: Chronic rhinosinusitis with nasal polyps is characterized by a T helper cell 2-skewed upper airway inflammation. Mucosal Staphylococcus aureus colonization is found in the majority of nasal polyps patients. Staphylococcus aureus is known to induce type 2 cytokine release via enterotoxins. OBJECTIVES: We investigated the impact of non-enterotoxin producing Staphylococcus aureus on type 2 cytokine release. METHODS: Thymic stromal lymphopoietin, interleukin-33 and type 2 cytokines were assessed in a human mucosal tissue model upon Staphylococcus aureus infection...
May 16, 2018: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/29767533/sirt1-controls-poly-i-c-dependent-mmp9-activation-in-primary-human-nasal-epithelial-cells
#13
Masanobu Suzuki, Mahnaz Ramezanpour, Clare Cooksley, Jian Li, Yuji Nakamaru, Akihiro Homma, Alkis Psaltis, Peter-John Wormald, Sarah Vreugde
BACKGROUND: Matrix metalloproteinase 9 (MMP9) is thought to be involved in the etiopathogenesis of chronic rhinosinusitis with nasal polyps (CRSwNP) and cleaves collagen IV causing hyperpermeability of the basement membrane within mucosal tissue. It is known that MMP9 expression is negatively affected by sirtuin-1 (SIRT-1) in human monocytotic cells, retinal endothelial cells and epithelial carcinoma cells. However, it is unknown which factors affect MMP9 expression and activity in human nasal epithelial cells (HNECs)...
May 16, 2018: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/29764019/-the-role-of-type-2-innate-lymphoid-cells-in-the-pathogenesis-of-eosinophilic-chronic-rhinosinusitis-with-nasal-polyps
#14
C L Geng, Z M Xing, L S Yu, M Wang, X P Yuan, Y Liu, G Zhang, Z J Wang
Objective: To investigate the type 2 innate lymphoid cells (ILC2s) in eosinophilic nasal polyps, non-eosinophilic nasal polyps and controls, and to compare the characteristics of ILC2s indifferent types of nasal polyp. Methods: Flow cytometric analysis was used to quantify the ILC2s and Th2 cells in tissues from 19 patients with chronic rhinosinusitis with nasal polyp (CRSwNP) and 6 controls. The patients were classified into two groups as eosinophilic chronic rhinosinusitis with nasal polyps (ECRSwNP) and non-eosinophilic chronic rhinosinusitis with nasal polyps (non-ECRSwNP) based on eosinophil counts under hematoxylin-eosin staining...
May 7, 2018: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
https://www.readbyqxmd.com/read/29763337/raman-spectroscopy-for-inverted-papilloma-a-proof-of-concept-study
#15
Marco A Mascarella, Abdulaziz Alrasheed, Naif Fnais, Ophelie Gourgas, Ghulam Jalani, Marta Cerruti, Marc A Tewfik
Inverted papillomas are tumors of the sinonasal tract with a propensity to recur. Raman spectroscopy can potentially identify inverted papillomas from other tissue based on biochemical signatures. A pilot study comparing Raman spectroscopy to histopathology for 3 types of sinonasal tissue was performed. Spectral data of biopsies from patients with normal sinonasal mucosa, chronic rhinosinusitis, and inverted papillomas are compared to histopathology using principal component analysis and linear discriminant analysis after data preprocessing...
May 1, 2018: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/29759032/tim-3-expressing-mast-cells-are-present-in-chronic-rhinosinusitis-with-nasal-polyps
#16
Erica Corredera, Binh L Phong, John A Moore, Lawrence P Kane, Stella E Lee
Objectives To identify whether TIM-3 expression is present in the mast cell population within nasal polyps and to determine its correlation with clinical severity in patients with chronic rhinosinusitis with nasal polyposis. Study Design Basic science, translational study. Setting Nasal polyp tissue collected from patients seen at a tertiary care hospital (2015-2016). Subjects and Methods Nasal polyp tissue obtained during functional endoscopic sinus surgery (n = 24) was enzymatically digested into epithelial and stromal fractions...
May 1, 2018: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/29759028/reciprocal-predictive-accuracy-of-sinonasal-symptom-severity-nasal-endoscopy-and-frequency-of-past-chronic-rhinosinusitis-exacerbations
#17
Marlene M Speth, Robert A Gaudin, Lloyd P Hoehle, Katie M Phillips, David S Caradonna, Stacey T Gray, Ahmad R Sedaghat
Objective We sought to determine whether chronic rhinosinusitis (CRS) symptom severity, endoscopic exam findings, and acute exacerbation of CRS (AECRS) frequency-all important and distinct clinical manifestations of CRS-would be predictive of each other and, therefore, inform when further assessment of each other metric should be pursued. Study Design Cross-sectional cohort study. Setting Tertiary academic rhinology clinic. Subjects and Methods In total, 241 patients with CRS were prospectively recruited and completed the 22-item Sinonasal Outcome Test (SNOT-22) to reflect CRS symptom severity...
May 1, 2018: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/29756211/appropriateness-criteria-predict-outcomes-for-sinus-surgery-and-may-aid-in-future-patient-selection
#18
Daniel M Beswick, Jess C Mace, Zachary M Soler, Noel F Ayoub, Luke Rudmik, Adam S DeConde, Timothy L Smith
OBJECTIVES: Appropriateness criteria to determine surgical candidacy for chronic rhinosinusitis (CRS) have recently been described. This study stratified patients who underwent endoscopic sinus surgery (ESS) according to these new appropriateness criteria and evaluated postoperative improvements among appropriateness categories. METHODS: Adult patients with uncomplicated CRS electing ESS were prospectively enrolled in a multi-institutional cohort study between March 2011 and June 2015 to assess outcomes...
May 14, 2018: Laryngoscope
https://www.readbyqxmd.com/read/29755965/the-development-of-long-term-adverse-health-effects-in-oil-spill-cleanup-workers-of-the-deepwater-horizon-offshore-drilling-rig-disaster
#19
Mark A D'Andrea, G Kesava Reddy
Background: The purpose of this study was to assess the long-term adverse health effects of the 2010 Deepwater Horizon Gulf oil spill exposure in workers who participated in its cleanup work. Methods: Medical charts of both the oil spill exposed and unexposed subjects were reviewed. The changes in the white blood cells, platelets, hemoglobin, hematocrit, blood urea nitrogen, creatinine, alkaline phosphatase (ALP), aspartate amino transferase (AST), alanine amino transferase (ALT) levels, as well as their pulmonary and cardiac functions were evaluated...
2018: Frontiers in Public Health
https://www.readbyqxmd.com/read/29755418/microbiome-and-culture-based-analysis-of-chronic-rhinosinusitis-compared-to-healthy-sinus-mucosa
#20
Kerstin Koeller, Daniel P R Herlemann, Tobias Schuldt, Attila Ovari, Ellen Guder, Andreas Podbielski, Bernd Kreikemeyer, Bernhard Olzowy
The role of bacteria in chronic rhinosinusitis (CRS) is still not well understood. Whole microbiome analysis adds new aspects to our current understanding that is mainly based on isolated bacteria. It is still unclear how the results of microbiome analysis and the classical culture based approaches interrelate. To address this, middle meatus swabs and tissue samples were obtained during sinus surgery in 5 patients with CRS with nasal polyps (CRSwNP), 5 patients with diffuse CRS without nasal polyps (CRSsNP), 5 patients with unilateral purulent maxillary CRS (upm CRS) and 3 patients with healthy sinus mucosa...
2018: Frontiers in Microbiology
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