PMID: 9661752Jul 14, 1998Paper

Early post-laser stapedotomy hearing thresholds

The American Journal of Otology
P J AntonelliJ M Kartush

Abstract

Auditory testing is not routinely performed within 4-6 weeks after stapedotomy, because hearing acuity is thought to be transiently depressed. In rare circumstances, postsurgical auditory and vestibular complaints may lead one to test hearing soon after stapedotomy. The early postoperative effects of carbon dioxide (CO2) and potassium titanyl phosphate (KTP) lasers, which now are routinely used to perform stapedotomies, have not been reported. The purpose of this report is to present normative data for auditory thresholds measured within 2 weeks of laser stapedotomy. The study design was a prospective, unblinded study. The study was conducted at three academic medical centers. Thirty-six subjects undergoing 38 stapedotomies for otosclerosis by 5 surgeons participated. Behavioral audiometry was performed using standard techniques beginning before surgery and continuing through > 1 year after surgery. The CO2 laser was used in 26 stapedotomies and the KTP laser was used in 12. Nine cases were revision procedures. Bone conduction pure-tone averages and speech discrimination scores did not worsen during the early postoperative period. Bone conduction at 250 and 4,000 Hz dropped slightly within the first 2 weeks (-4.3 and -6.7 dB) b...Continue Reading

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