air-bone gap


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air-bone gap

the difference between the thresholds for hearing when the stimuli are delivered by air conduction and by bone conduction.

air-bone gap

(âr′bōn′)
n.
The difference between the threshold for hearing acuity by bone conduction and by air conduction.

air-bone gap

(ABG) (ār-bōn gap)
An abnormal condition in which the auditory threshold for an air-conducted test tone is higher than that for a bone-conducted test tone of the same frequency.
See also: conductive hearing loss

air-bone gap

(ār-bōn gap)
An abnormal condition in which the auditory threshold for an air-conducted test tone is higher than that for a bone-conducted test tone of the same frequency.
See also: conductive hearing loss
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References in periodicals archive ?
Air-Bone Gap (ABG) on PTA###45.63+-8.35###7.41+-3.51###<0.05
Tympanoplasty Type-I using tragal perichondrium graft: Our experience
Whereas, there were no statistically significant differences between the perforation location groups of Group 1 and Group 2 in terms of mean air conduction threshold, mean air-bone gap, and PTA1-PTA2 values on the Mann-Whitney U test (p-value: 0.248 and 0.35 for PTA1 and PTA2, respectively).
The Effect of Tympanic Membrane Perforation Site, Size and Middle Ear Volume on Hearing Loss
Both the change in hearing level and air-bone gap reached a level of significant improvement at 500 Hz (tables 1 and 2).
Clinical outcome of revision cartilage tympanoplasty
In both cases, the promontory lip was not removed, but a closure of the air-bone gap was achieved (as in patients 6 and 12).
Radiological control of the floating mass transducer attached to the round window
The decrease in air-bone gap measure-ments between the first and third records could be considered to positively affect hearing.
Rapid maxillary expansion and conductive hearing loss
26 number of the patients showed air-bone gap between 25-350 dB and 14 number of the patients showed air-bone gap between 36-45 dB.
ENDOSCOPIC STAPEDOTOMY--OUR EXPERIENCE
Some authors advocate surgery only for patients with an air-bone gap (ABG) >30 dB, (5) while others accept 25 dB6 or 15 dB, (2) with current guidelines advocating surgery for an ABG >20 dB.
Stapes surgery in patients with a small air-bone gap
Hearing was rendered as effective increase when air-bone gap was decreased by 15 dB after surgery.
Therapeutic outcomes of canal wall up mastoidectomy in combination with Type I tympanoplasty in otitis media
The air-bone gap had narrowed to 13.8 [+ or -] 6.0 dB after surgery (424 dB) (P = 0.0001).
Hearing benefit in allograft tympanoplasty using Tutoplast processed malleus
Out of 25 patients with stapedotomy, 22 (88%) developed complete closure of the air-bone gap (<10 dB) on pure tune audiometry.
Outcome of management of otosclerosis by stapedotomy compared to stapedectomy in a Jordanian population
2) Those that had an air-bone gap that was equal to or above 15dB.
Symptoms associated with hearing loss as seen in the University of Benin Teaching Hospital, Benin City, Nigeria
of patients 20 9 Preoperative ABG (dB) 33.4 29.9 Postoperative ABG (dB) 18.3 14.9 [DELTA] ABG (dB) 15.2 14.9 Rate of successful ossiculoplasty (%) 65 77.8 ABG: air-bone gap; [DELTA] ABG: air-bone gap change.
Does The Type of Ossicular Chain Lesion Affect Outcomes in Chronic Suppurative Otitis Media Without Cholesteatoma?

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