Scientists have managed to cure the damage of the tympanic membrane and to restore hearing to people with chronic otitis media with transplant submucosa of the small intestine of the pig. As stated in the article, published in the journal Clinical Otolaryngology, nearly 95 percent of the subjects six months after surgery showed complete healing of the membrane.
Tympanoplasty helps to eliminate defects of the tympanic membrane using a variety of grafts. They can serve as their own human tissue (temporal fascia, fat, perichondrium), and tissues of a corpse or animals. When using cadaveric material, however, a high risk of developing disease Creutzfeldt-Jakob.
Previously, researchers reportedthat for tympanoplasty can be successfully used submucosal shell small intestine of the pig, however, there was evidence of improvement in hearing after the operation. Besides, the operation was only carried out using methods of microsurgery.
Lee Chun Xie (Li‐Chun Hsieh) with their colleagues from Memorial hospital McKay decided to check how efficient transplantation of pig transplant for people with damaged eardrum in chronic otitis media, when people complained about the noise in the ears, leaking pus from the ears and impaired hearing. In total, the study involved 72 patients with different (up to more than 50 percent of the area) the extent of damage to the membrane. Endoscopic (using malotravmiruth technician) tympanoplasty with the use of porcine graft was carried out on 75 ears.
Six months in 71 ear was observed complete healing of the tympanic membrane without signs of graft rejection. Four ears were still signs of active healing, but the amount of damage they reduced. Postoperative complications in the form of dizziness and facial paralysis, which could occur when trauma to the inner ear and nearby nerves, was not observed.