1. Hearing preservation using topical dexamethasone alone and associated with hyaluronic acid in cochlear implantation
- Author
-
Henrique Faria Ramos, Robinson Koji Tsuji, Paola Angelica Samuel, Ricardo Ferreira Bento, Rubens de Brito, Bernardo Faria Ramos, and Maria Valéria Schmidt Goffi-Gomez
- Subjects
Adult ,Male ,medicine.medical_specialty ,Adolescent ,Hearing loss ,Topical dexamethasone ,Administration, Topical ,medicine.medical_treatment ,Dexamethasone ,Young Adult ,chemistry.chemical_compound ,Pharmacotherapy ,Cochlear implant ,Hyaluronic acid ,otorhinolaryngologic diseases ,Humans ,Medicine ,Prospective Studies ,Hyaluronic Acid ,Cochlear implantation ,Aged ,Aged, 80 and over ,Hearing preservation ,business.industry ,Significant difference ,Auditory Threshold ,General Medicine ,Middle Aged ,Cochlear Implantation ,Surgery ,Otorhinolaryngology ,chemistry ,Anesthesia ,Audiometry, Pure-Tone ,Drug Therapy, Combination ,Female ,medicine.symptom ,business - Abstract
Topical dexamethasone associated with hyaluronic acid in cochlear implant surgery demonstrated a statistically significant difference in the preservation of low-frequency thresholds when compared with topical dexamethasone alone and a control group. Topical dexamethasone alone was not superior in hearing preservation when compared to the control group.To compare the effects of topical dexamethasone alone and associated with hyaluronic acid intraoperatively in hearing preservation in cochlear implantation.Eighteen severely to profoundly hearing-impaired adult patients with measurable hearing were divided into three groups preoperatively: cochlear implantation as a control group (group 1), cochlear implantation using topical dexamethasone intraoperatively (group 2), and cochlear implantation using topical dexamethasone associated with hyaluronic acid intraoperatively (group 3). Preimplant and postimplant low-frequency pure-tone averages (PTAs) were calculated from unaided audiograms at 125, 250, and 500 Hz.The mean changes in the low-frequency PTA comparing postoperative against preoperative thresholds were 28.03 ± 6.77 dB in group 1, 30 ± 14.53 dB in group 2, and 7.23 ± 6.12 dB in group 3. There was statistical difference when comparing group 3 with groups 1 and 2 using one-way ANOVA (p = 0.002) followed by Scheffé post hoc test.
- Published
- 2015