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Abstract
This study consisted of 40 patients with COME not responding to medical treatment for 3 months, 14 patients were male and 26were female with the age ranging between 4 and 12 years, the mean age was (7.0 ± 2.0). At the preoperative examination, the tympanogram was pathologic type B) in audiometric diagnosis of OME was the informed consent term, they were assigned to one of the following groups: group(A) VT group submitted to tympanotomy, aspiration of effusion and placement of ventilation tube, and group (B) submitted to circumferential tympanotomy, effusion aspiration only ,and group(C) submitted to circumferential tympanotomy, effusion aspiration and topical application of MMC. The final distribution of the 80 ear assigned 40 ear to VT group (A) , 20 ear in the tympanotomy group B),and 20 ear in the tympanotomy with MMC group(C). Patients were submitted to antiseptic cleaning of the external auditory canal with povidine-iodine detergent, bilateral tympanotomy, under microscopy on the anterior-inferior quadrant of the TM, followed by aspiration of effusion. They were submitted to placement of VT, group A) 40 ear another20 ear were subjected to circumferential tympanotomy to about 2 mm wide (group B), the other 20ear were subjected to circumferential tympanotomy to about 2 mm wide and insertion of a fragment of cotton embedded in MMC solution at the concentration of 0.5 mg/mL in the incision for five minutes (group C). Adenoidectomy was done in 25 patients (62.5%) with adenoid hypertrophy of the study.