Open AccessEvaluation of Clinical Features of Antrochoanal Polyps
Author(s) -
Yamada Yuko,
Asaka Daiya,
Okushi Tetsushi,
Moriyama Hiroshi,
Otori Nobuyoshi,
Nakayama Tsuguhisa,
Matsuwaki Yoshinori
Publication year - 2011
Publication title -
otolaryngology–head and neck surgery
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.232
H-Index - 121
eISSN - 1097-6817
pISSN - 0194-5998
DOI - 10.1177/0194599811415823a402
Subject(s) - medicine , maxillary sinus , rhinorrhea , otorhinolaryngology , sinus (botany) , surgery , posterior wall , nasal polyps , prospective cohort study , dentistry , botany , biology , genus
Objective Antrochoanal polyps (ACPs) are benign polypoid lesions that arise from the maxillary sinus and extend into the choana. Current knowledge regarding the prevalence and clinical features of ACPs in Japan is very limited. Here, we performed a prospective study to evaluate the prevalence and clinical features of ACPs. Method Between April 2007 and March 2008, 728 patients undergoing endoscopic endonasal sinus surgery were prospectively enrolled in this study at the Department of Otorhinolaryngology, Jikei University School of Medicine. Results Fifteen (2.1%) of those patients were diagnosed as having ACP(s). The symptom scores for nasal obstruction, rhinorrhea, and postnasal drip were each significantly reduced postoperatively. The distribution of the ACPs’ origin in the maxillary sinus was as follows: floor of the maxillary sinus to the posterior wall (40%), floor of the maxillary sinus (26.7%), and floor of the maxillary sinus to the internal wall (20%). The recurrence rate following endoscopic endonasal sinus surgery was 13.3%. Conclusion Endoscopic endonasal sinus surgery for ACPs was most effective when the origin of the polyp in the maxillary sinus was carefully determined and excised as completely as possible, followed by appropriate postoperative treatment.