IRCT20221002056073N2 IRCT 2023-07-18 Oroumia University of Medical Sciences The success rate of two surgical approaches of Tympanoplasty Evaluation of the efficacy of endoscopic ear surgery compared to microscopic method on pain severity and graft success rate among patients with chronic otitis media: a randomized clinical trial 2023-07-01 anticipated 40 Complete https://irct.ir/trial/70787 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Diagnostic, Randomization description: Allocation of patients will be done by simple randomization according to computerized generated numbers using random allocation software that half of the participants will be assigned to the endoscopy group based on odd numbers and the other half will be assigned to the microscopic group based on even numbers. N/A Chronic Otitis media. Intervention 1: Intervention group 1: In the microscopy group (a common approach) the Opmi Vario S88 microscope from Carl Zeiss in Oberkochen, Germany will be used for investigation. In the microscopic approach, an incision will be executed behind the ear with subsequent entry into the canal. The Lempert method will be served as the basis for the lifting of the tympanomeatal flap. Intervention 2: Intervention group 2: The endoscopic group (the new approach) will be employed an endoscopic system manufactured by Karl Storz in Tuttlingen, Germany. Rigid endoscopes with either 0- or 30-degree angles and diameters of 3.0- or 4.0-mm, and lengths of 11 or 16 cm (also from Karl Storz) will be used for the procedure. The incisions for this approach will be made in the posterior part of the EAC approximately 5 to 6 mm lateral to tympanic annulus, perpendicular to the TM tympanic at both the superior and the inferior ends of the first incision. Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is There is no further information