Keywords Endoscopic sinus surgery Eosinophil Nasal polyposi Paranasal sinus Sinonasal polyps Nasal polyposis is one of the chronic airway diseases, which affects the patient's quality of life in different ways. There are various complications along with nasal polyposis, which might be cured by drug administration. Due to failure of pharmacotherapy effects, various surgical approaches might be u...

INTRODUCTION The goal of this project was to evaluate the impact of immunoglobulin E (IgE) levels on outcomes in patients with chronic rhinosinusitis (CRS) who received maximal medical therapy (MMT). STUDY DESIGN Prospective cohort study. METHODS Thirty-eight patients who underwent MMT for CRS were assigned to three different cohorts based on their IgE levels: low IgE (<25 IU), moderate (>2...

BACKGROUND Nasal polyps are benign lesions originating from the nasal mucosa or paranasal sinuses. The most important etiological factor seems to be increased hydration of epithelium and hyperplasia of the extracellular matrix, which may involve hyaluronan, a high molecular mass extracellular glycosaminoglycan. Degradation of hyaluronan proceeds through the action of specific hyaluronidases. ...

Nasal polyps (NP) is highly associated with the disorder of immune cells. Alternative polyadenylation (APA) produces mRNA isoforms with different length of 3'‑untranslated region (UTR) and regulates gene expression. It has been proven that this APA-mediated regulation of 3'UTR length is an immune-associated phenomenon. The aim of this study was to investigate the genome-wide alternative tandem ...

Antrochoanal polyp is a benign, solitary polypoid lesion arising from the edematous mucosa of the maxillary sinus and extending through the maxillary ostium into the nose. In children, it constitutes 33% of all nasal polyps. It presents most commonly with unilateral nasal obstruction and purulent rhinorrhea. Surgery is the usual treatment for antrochoanal polyps. The primary aim of treatment fo...

BACKGROUND Chronic rhinosinusitis is a multifactorial process disease in which bacterial infection or colonization may play an important role in the initiation or persistence of inflammatory response. The association between mucosal bacteria presence and inflammatory patterns has only been partially explored. OBJECTIVE To demonstrate specific mucosal microorganisms possible association with i...

The European Position Paper on Rhinosinusitis and Nasal Polyps 2012 is the update of similar evidence based position papers published in 2005 and 2007. The document contains chapters on definitions and classification, we now also proposed definitions for difficult to treat rhinosinusitis, control of disease and better definitions for rhinosinusitis in children. More emphasis is placed on the di...

BACKGROUND The pathogenesis of chronic rhinosinusitis with nasal polyps is largely unknown. Previous studies have given valuable information about genetic variants associated with this disease but much is still unexplained. Our goal was to identify genetic markers and genes associated with susceptibility to chronic rhinosinusitis with nasal polyps using a family-based genome-wide association st...

The aim of the present study was to evaluate the in vivo regulation of cyclooxygenase-2 in nasal polyps. In total, 65 patients with nasal polyps were randomly (3:1) treated with (n = 51; 33 with asthma) or without (n = 14) oral prednisone and intranasal budesonide for 2 weeks plus intranasal budesonide for 10 additional weeks. Biopsies were obtained at baseline and after 2 and 12 weeks of treat...

OBJECTIVES/HYPOTHESIS Surgical treatment for chronic rhinosinusitis with nasal polyps (CRSwNP) is often followed by polyp regrowth with return of symptoms. The purpose of this study is to identify clinical factors that influence the time interval to revision sinus surgery in patients with nasal polyps. STUDY DESIGN Retrospective cohort study. METHODS Records of 299 individuals who underwent...