Objective:
To investigate the effect of nitrous oxide to the success of tympanoplasty graft after operation.
Material and methods:
ASA I-II, 83 patients who underwent tympanoplasty were retrospectively analyzed. Patients were divided into 4 groups examined in the repair of the perforation under general anesthesia. In Groups 1 and 3 the temporal muscle fascia was used, in Group 2 and 4 tragal cartilage pericondrium was used. Nitrous oxide gas was closed during the operation of the Group 1 and 2, not closed in Group 3 and 4 respectively. Postoperatively, examination of the records of the membrane at the end of the year regarding the status of surgical success was defined as an intact membrane.
Results:
18 to 63 years of age, 50 (60%) male and 33 (40%) female, a total of 83 case were evaluated. When the groups were compared with each other in terms of the number of graft-repellent ear, rejection rate was higher in group 3 than group 1 and in group 4 than in group 2, but there was no statistically significant difference between the groups (p>0.05).
Conclusion:
Nitrous oxide does not affect graft success alone, but the patient’s age, size and location of the perforation, the preoperative condition of the ear, eustachian tube function and the type of graft material used were the factors affecting the success rates.
Keywords: Tympanoplasty, nitrous oxide, graft success