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Early hearing assessment after "one shot" CO2 laser stapedotomy: is it helpful to predict inner ear damage and the
Bruno Sergi1, Alessandro Scorpecci, Claudio Parrilla
1ENT Department, Università Cattolica del Sacro Cuore, Rome, Italy. bruno.sergi@rm.unicatt.it
Objective:
Auditory testing is not routinely performed within 4 to 6 weeks after stapedotomy because hearing acuity is thought to be transiently depressed. The early postoperative effects of the 1-shot carbon dioxide (CO2) laser have never been reported. The purpose of this study is to present data for auditory thresholds measured within 2 days of laser stapedotomy and at the last follow-up.
Study Design:
The study was prospective and unblinded.
Setting:
The study was conducted at the "A. Gemelli" University Hospital.
Methods:
From January to December 2008, 58 subjects underwent "1-shot" CO2 laser stapedotomies for otosclerosis. Pure-tonal audiometric test was performed preoperatively 2 days after surgery and at least 1 month after surgery during the follow-up.
Results:
The closure of air-bone gap began in the early postoperative period and continued to improve through the late postoperative period. Bone-conduction hearing thresholds were stable even in the early postoperative follow-up and remained stable trough all the course of the study.
Conclusion:
Our data, supported by the literature, suggest that 1-shot CO2 laser stapedotomy is an effective and safe procedure for the treatment of otosclerosis.
