STUDY ON MIDDLE EAR VENTILATION USING POSITIONAL TYMPANOMETRY

Multifrequency tympanometry: effects of ear canal volume compensation on middle ear resonance.

Sweep frequency tympanograms compensating for ear canal volume at 200 and -400 daPa were obtained on 106 ears of 53 subjects during four different sessions. Resonance frequencies were obtained and analyzed to determine normative data, resonance differences between the compensation methods, and the interaction effect of running consecutive tympanograms. There were no gender or interaural differe...

Effect of Suctioning of the Middle Ear Effusion on Hearing Condition Before Ventilation Tube Insertion

Abstract OME is a Common disease in children. over than 90% of children in preschool ages experienced this disease once at least. Despite medical therapy about 10% of the OME patients won't improved and these are the group of patients who referred to as chronic OME patients. Insertion of VT in TM is an accepted therapy for these patients and during surgery for insertion of VT, suctioning of mi...

Measuring middle ear admittance in newborns using 1000 Hz tympanometry: a comparison of methodologies.

The present study aimed to compare three measures to estimate middle ear admittance in neonates using 1000 Hz tympanometry. Data were obtained from 36 full-term newborns, aged between 24 and 123 hours, who passed a transient evoked otoacoustic emissions test and assessed using a Madsen Otoflex impedance meter. The results showed that the mean middle ear admittances obtained by compensating for ...

Using tympanometry to detect glue ear in general practice.

Tympanometry and CT Measurement of Middle Ear Volumes in Patients with Unilateral Chronic Otitis Media

OBJECTIVES The goals of the study were to compare the middle ear (ME) volumes from both normal and lesioned ears, and these ME volumes were measured by a digital image processing computed tomography (CT) program in patients with unilateral chronic otitis media, and we wanted to compare the ME volumes of the lesioned ears by comparing the ME volumes obtained by tympanometry with those ME volumes...