بررسي زمان دفع و عوارض VENTILATION TUBE در كودكان مبتلا به اوتيت سروز

A STUDY OF THE REJECTION TIME & COMPLICATIONS OF VENTILATION TUBE (VT) IN CHILDREN WITH SEROUS OTITIS WHO HAD UNDERGONE A VT PLACEMENT OPERATION

. Serous otitis or otitis media with effusion is one of the common diseases which if left untreated can lead to complications like tympanic membrane atrophy, cholesteatoma formation, behavioural changes, osteonecrosis and sensori - nueral deafness. One of the treatment options for serous otitis is VT placement which has its own complications like ottorhea, perforation and tympano - sclerosis. The rejection time of VT is closely related to the location of the ventilation tube. The complications arising due to VT placement are related to the time period since placement of the tube, social status of the patient, age, personal hygiene including prevention of water entry into the affected ear, etc. This prospective analytical survey with a one year foilowup was carried out on children suffering from serous otitis who had been operated (VT placement) during the first half of 1378 at Shahid Rahnemom Hospital. Most of the VT rejections in all age groups occurred about 7-9 months after the operation but no significant difference was observed between the age groups. In the study determining the relation between gender and VT rejection time (P.V= 0.536), it was realised that the maximum number of VT rejections were between 3-6 months after the operation (47.7%) of which 44.3% was seen in boys and 51.9% in girls, thus, no significant difference was observed between the two sexes (P.V=0.691). 33.9% of the total had ottorhea. 35.1% sclerosis, and 3.4% had a perforation. 27.6% of the patients had no complications. 7.7% of those patients who had a VT in the anterosuperior compartment of the tympanic membrane had a perforation, while only 2.7% of those who had a VT in the postero - interior compartment had a perforation. Age and gender have no effect on VT rejection time. The probability of a VT remaining in place is more in Shepherd type ventilation tubes than Richard type VT. Ventilation tubes placed in the antero - inferior quadrant are rejected earlier than those placed in the antero - superior quadrant. In the population under study, perforation is the least occuring complication in all age groups. There is on significant difference in the complications arising in either gender.