<p class="abstract"><strong>Background:</strong> <span lang="EN-IN">Chronic maxillary sinusitisis is one of the most frequent diseases presenting in ENT out patient department seeking medical attention<sup>.</sup><strong> </strong>Defects in the fontanelle region of the lateral nasal wall have been described as accessory ostia. The presence of AMO in both pre and post operated cases of chronic maxillary sinusitis can cause recirculation of mucus leading to recurrences. In the present study we will investigate the incidence of accessory ostia in patients with clinical and radiological signs of chronic maxillary sinusitis. </span></p><p class="abstract"><strong>Methods:</strong> <span lang="EN-IN">The study included 100 patients visiting the out patient department of Shri Sathya Sai Medical College and Research Institute selected according to inclusion criteria with a clinical diagnosis of chronic rhino sinusitis which was confirmed by high resolution CT scan and those patients were subjected to diagnostic nasal endoscopy under local anesthesia. </span></p><p class="abstract"><strong>Results:</strong> <span lang="EN-IN">The study group consisted of total 100 patients among whom 56 were male patients and 44 were female patients. Accessory maxillary ostia were detected in 23% of the cases and in rest of the 77% cases it was absent. Among the 23 cases in 35% cases accessory ostia were found to be bilateral and in 65% cases it was found to be unilateral. Among the cases where accessory ostia were seen, in 39% cases only accessory ostia were found. Where as in 17.39% cases it was associated with concha bullosa, in 65.2% cases there was deviated nasal septum and in 8.7% cases paradoxical middle turbinate were found to be present. </span></p><p class="abstract"><strong>Conclusions:</strong> <span lang="EN-IN">To conclude, the present study revealed close association of accessory ostia with chronic maxillary rhino sinusitis. It was also found that majority of the cases accessory ostia were found to be unilateral and were frequently found in the posterior fontanelle region.</span></p>
<p class="abstract"><strong>Background:</strong> <span lang="EN-IN">C</span><span lang="EN-IN">hronic sinusitis is repeated bouts of acute infection or persistent inflammation of the sinuses. The range of anatomic variants that can interfere with the mucociliary drainage of osteomeatal complex including concha bullosa, deviated nasal septum, uncinate process variations, ethmoid bulla, paradoxical middle turbinate, agger nasi and Haller cells. This is also important in surgeon point of view to know about detail knowledge of lateral nasal wall, paranasal sinuses, surrounding vital structures and anatomical variation. </span></p><p class="abstract"><strong>Methods:</strong> <span lang="EN-IN">Observational case series study in which 90 cases of chronic rhinosinusitis patients attending the ENT outpatient department from November-2015 to November-2016 in Shri Sathya Sai Medical college and Hospital, who had chronic sinusitis for more than three months duration not responding to the medical line treatment and who are willing to undergo functional endoscopic sinus surgery are studied and statistically analysed. </span></p><p class="abstract"><strong>Results:</strong> <span lang="EN-IN">In our study we found anatomical variation in 93% of chronic sinusitis patients. In our study it was observed that 52% of patients with two anatomical variation, 41% patients presented with single anatomical variation and 7% patients presented with no anatomical variation. In our study deviated nasal septum was the most common anatomical variant noted followed by unilateral concha bullosa, medialized uncinate process, paradoxical middle turbinate, haller cell and agger nasi. </span></p><p class="abstract"><strong>Conclusions:</strong> <span lang="EN-IN">In our study it was concluded that presence of anatomical variations is common in patients with chronic sinusitis. Presence of more than one anatomical variations significantly contributes to disease process.<strong> </strong>Deviated nasal septum is the most common anatomical variation in our study followed by concha bullosa, medialized uncinate process.</span></p>
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