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A blinded randomized controlled trial evaluating the efficacy of chitosan gel on ostial stenosis following endoscopic sinus surgery.
MedLine Citation:
PMID:  23322408     Owner:  NLM     Status:  Publisher    
BACKGROUND: Stenosis of sinus ostia following endoscopic sinus surgery (ESS) is the most common reason for revision surgery. Chitosan-dextran (CD) gel has been shown to be an effective hemostatic agent; however, its effects on ostial stenosis are unknown. This study aims to quantify the effect of CD gel on circumferential scarring following ESS. METHODS: A prospective, blinded, randomized, controlled trial was conducted in 26 patients undergoing ESS. Measurements of neo-ostia were taken using a standard-sized measuring probe. CD gel was applied unilaterally, while contralateral sides received no gel. Ostial diameters were measured by a blinded observer at 2, 8, and 12 weeks postoperation. Sinus ostial areas calculated as a proportion of the original were compared for each ostium at each time point. RESULTS: Intraoperative ostial areas were comparable for CD gel and control sides (38 mm(2) vs 39 mm(2) , 131 mm(2) vs 120 mm(2) , and 203 mm(2) vs 193 mm(2) , in frontal, sphenoid, and maxillary ostia, respectively; p > 0.05). CD gel significantly improved sinus ostial patency. The largest difference was seen when ostial areas at 12 weeks were compared with their corresponding baseline areas (66% vs 31% frontal, p < 0.001; 85% vs 47% sphenoid, p < 0.001; and 74% vs 54% maxillary ostia, p = 0.002). The difference between raw ostial areas reached statistical significance in sphenoid (p < 0.001) and maxillary (p = 0.01), but not in frontal ostia (p > 0.05) at 12 weeks. CONCLUSION: CD gel produced significantly less stenosis of all neo-ostia following ESS and may reduce the necessity for revision surgery in patients with chronic rhinosinusitis.
Thanh Ngoc; Rowan Valentine; Stephen Moratti; Simon Robinson; Lyall Hanton; Peter-John Wormald
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-16
Journal Detail:
Title:  International forum of allergy & rhinology     Volume:  -     ISSN:  2042-6984     ISO Abbreviation:  Int Forum Allergy Rhinol     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-1-16     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101550261     Medline TA:  Int Forum Allergy Rhinol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2013 ARS-AAOA, LLC.
Department of Surgery-Otorhinolaryngology, Head and Neck Surgery, University of Adelaide, Adelaide, Australia.
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