%0 Journal Article %T Outcomes After Exoscopic Versus Microscopic Type 1 Tympanoplasty. %A Fan CJ %A Fritz CG %A Lucas JC %A Conway RM %A Kato MG %A Babu SC %J Otol Neurotol %V 45 %N 6 %D 2024 Jul 1 %M 38865726 %F 2.619 %R 10.1097/MAO.0000000000004220 %X OBJECTIVE: To analyze the outcomes of exoscopic versus microscopic type 1 tympanoplasty.
METHODS: Retrospective chart review.
METHODS: Tertiary care otology-neurotology practice.
METHODS: Adult subjects with a diagnosis of tympanic membrane perforation from 2018 to 2022.
METHODS: Exoscopic or microscopic tympanoplasty with cartilage + perichondrium or perichondrium/fascia graft.
METHODS: Primary outcomes were graft success rate (1 wk, 3 wk, 3 mo, and 6 mo postoperatively) and operative time. Secondary outcomes included audiometric outcomes of postoperative air-bone gap (ABG), change in ABG, pure tone average (PTA), speech reception threshold (SRT), and word recognition score (WRS) at 6-month follow-up and complication rates of cerebrospinal fluid leak, facial nerve injury, persistent tinnitus, and persistent vertigo.
RESULTS: Seventy-one patients underwent type 1 tympanoplasty by a single surgeon. Thirty-six patients underwent exoscopic tympanoplasty, and 35 patients underwent microscopic tympanoplasty. Cartilage and perichondrium were utilized in 27 subjects (75.0%) in the exoscopic group and in 25 subjects (71.4%) in the microscopic group (p = 0.7, Cramer's V = 0.04). Graft success rate was as follows (exoscope versus microscope): 100% (36/36) versus 100% (35/35) at 1 week (p = 1.0, Cramer's V = 0.0), 97.2% (35/36) versus 100% (35/35) at 3 weeks (p = 1.0, Cramer's V = 0.1), 97.2% (35/36) versus 94.3% (33/35) at 3 months (p = 1.0, Cramer's V = 0.07), and 91.7% (33/36) versus 91.4% (32/35) at 6 months (p = 0.7, Cramer's V = 0.0). Operative time was 57.7 minutes for the exoscopic group and 65.4 minutes for the microscopic group (p = 0.08, 95% CI [-16.4, 0.9], Cohen's d = 0.4). There were no serious complications. All preoperative and postoperative audiometric outcomes were comparable.
CONCLUSIONS: The outcomes after exoscopic versus microscopic type 1 tympanoplasty are comparable.