Abstract
Objective: To assess the efficacy of intraoperative brainstem auditory evoked responses (BAER) in predicting postoperative hearing improvement in surgery for conductive hearing loss. Study Design: A prospective study of consecutive patients undergoing surgery for conductive hearing loss under general anesthesia by a single surgeon. Setting: A tertiary care university affiliated medical center. Patients: All patients undergoing surgery for conductive hearing loss by the senior author between June 25, 1993 and March 20, 1995. Interventions: Pre- and postreconstruction intraoperative BAERs; pre- and postoperative pure tone and speech audiometry. Main Outcome Measures: Changes in audiometric pure tone air-conduction thresholds, bone-air gaps (BAG), and speech reception thresholds (SRT), compared with changes in BAER wave five (V) latencies. Results: A decrease in the wave V latency on the intraoperative BAER correlates significantly with improvement in postoperative puretone air-conduction, BAG, and SRT using χ2 and linear regression analyses. Conclusions: Improvement in intraoperative BAER correlates with postoperative hearing improvement in surgery for conductive hearing loss done under general anesthesia in our population.
| Original language | English |
|---|---|
| Pages (from-to) | 2-9 |
| Number of pages | 8 |
| Journal | American Journal of Otology |
| Volume | 18 |
| Issue number | 1 |
| State | Published - Jan 1997 |
| Externally published | Yes |
Keywords
- Brainstem Auditory Evoked Response (BAER)
- conductive hearing loss
- intraoperative cranial nerve monitoring
- ossiculoplasty
- stapedectomy