tympanogram

tympanogram

 [tim´pan-o-gram″]
1. a graphic representation of the relative compliance and impedance of the tympanic membrane and ossicles of the middle ear obtained by tympanometry.
2. a test using tympanometry to measure how easily the tympanic membrane vibrates back and forth and at what pressure the vibration is easiest. The middle ear is normally filled with air at a pressure equal to that of the surrounding atmosphere. If it is filled with fluid, the membrane will not vibrate properly and the line on the tympanogram will be flat; if it is filled with air but at a higher or lower pressure than the surrounding atmosphere, the line on the graph will be shifted in position. A tympanogram is a quick and easy test; a probe is placed up against the ear canal like an ear plug and the equipment automatically makes the measurements.

tym·pan·o·gram

(tim'pă-nō-gram),
The printout of immittance showing the stiffness or the compliance of the middle ear structures as it varies with changes in pressure within the external auditory canal.

tympanogram

/tym·pa·no·gram/ (tim´pah-no-gram″) a graphic representation of the relative compliance and impedance of the tympanic membrane and ossicles of the middle ear obtained by tympanometry.

tympanogram

[timpan′əgram]
a graphic representation of the acoustic impedance and air pressure of the middle ear and the mobility of the tympanic membrane, measured as part of the audiological test battery. In the normal middle ear, the air pressure is the same as the atmospheric pressure, as shown by a peak in the middle of the tympanogram. Various middle ear pathologies such as otitis media, otosclerosis, or tympanic membrane perforations each yield distinctive tympanograms. See also acoustic impedance.

tym·pan·o·gram

(tim'pă-nō-gram)
A visual depiction (e.g., a printout) of the relative compliance and impedance of the structures of the middle ear in response to pressure changes in the external ear canal.

tympanogram

a graphic representation of the relative compliance and impedance of the tympanic membrane and ossicles of the middle ear obtained by tympanometry.
References in periodicals archive ?
Evaluation criteria for clinical efficacy are as follows: (1) cured: no feelings of ear fullness, no otorrhea or effusion, and tympanogram converted to Type A or Type As (2) effective: residual feeling of ear fullness, tympanogram converted to Type A or Type C, and tympanocentesis showed no effusion or presence of residual perforation without otorrhea; (3) ineffective: no improvement in feeling of ear fullness or hearing loss, still presenting with a blue eardrum, coffee-colored liquid obtained on tympanocentesis or residual perforation accompanied by otorrhea, and tympanogram was still Type B; (4) recurrence: the symptoms reappeared after the patient was cured or showed improvement for 1 year.
The tympanogram of sensorineural deafness also showed "A" type curve, the stapedius muscle acoustic reflex threshold could also be increased or not induced, but some patients with SHL might have loudness recruitment.
According to the facial palsy protocol, tympanogram and acoustic reflex were determined as audio-logic work-up to assess the level of facial nerve lesion on at least two occasions at 3-week interval or at the most on four occasions at 12-week interval.
Children whose ear infections involve severe bulging of the eardrum are likely to benefit from antibiotic treatment, while children with a peaked tympanogram pattern are likely to recover from the infections without the use of antibiotics, according to study results.
The next day, we performed audiometry, which revealed a type A tympanogram with a new-onset moderate, low-frequency, left-sided SNHL; her hearing levels rose to within normal limits in the higher frequencies (figure 1).
Studies also found a greater rate of tympanogram normalization than control subjects treated with medical management alone (51.
1) Tympanometry was performed by an expert audiologist to obtain wrestlers' ear tympanogram in both groups.
OME was diagnosed through findings by otoscopic examination and tympanogram.
It was found that 31% of children receiving grommets and antibiotic treatment had experienced a return to normal tympanogram results after twelve months of treatment.
Her audiogram, performed post-operatively, showed mild to severe mixed hearing loss on the right and normal to severe sensorineural hearing loss on the left, with large volume type B tympanogram on the right side.
A 2013 Cochrane review of 8 studies compared any form of autoinflation with no autoinflation in adults and children with OME and found improvement in patients' tympanogram or audiometry results that lasted longer than one month (relative risk of improvement=1.