METHOD FOR SURGICAL REHABILITATION OF CONGENITAL CHOLESTEATOMA OF THE ANTERIOR MESOTIMPANUM Russian patent published in 2022 - IPC A61B17/00 A61F11/00 

FIELD: medicine.

SUBSTANCE: invention relates to the field of medicine, namely to otorhinolaryngology. Access is carried out by a behind-the-ear approach. A meatotympanal flap is formed. At the same time, the skin of the external auditory canal is separated from the back to the front from 8 to 4 hours. Then, with a surgical bur with a diameter of 4.0 mm, the bone of the distal posterior wall of the external auditory canal is smoothed until the anterior meatotympanal angle is fully visualized. The tympanic cavity is opened. The tympanic membrane is separated from the handle of the hammer, starting from the short process of the hammer, from top to bottom, while maintaining contact in the umbo area. After that, the capsule of congenital cholesteatoma is separated from the medial surface of the tympanic membrane. The meatotympanal flap is folded down. Then the anterior malleus fold is dissected with a microneedle. The bur removes the anterior-upper part of the bone tympanic ring until the capsule of congenital cholesteatoma is fully visualized. Resection of congenital cholesteatoma is performed, preserving the integrity of its capsule. Next, the meatotympanal flap is placed on the bone tympanic ring. The external auditory canal is tamponed. The behind-the-ear wound is sutured in layers.

EFFECT: method reduces the risk of developing residual and/or recurrent middle ear cholesteatoma in patients with congenital anterior mesotympanum cholesteatoma by preserving the anatomical integrity of the structures of the middle ear and the patient’s hearing.

2 cl, 3 dwg, 1 ex