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局麻下经外耳道暴露鼓室前部的手术相当困难。作者设计一种简便方法,用于1例鼓室颈静脉球体瘤,2例先天性胆脂瘤及1例良性腺瘤,鼓室暴露良好,肿瘤顺利切除。外耳道内切口呈Ω形,自鼓环6点处开始,向外延展到外耳道后壁皮肤,达距鼓环6～8mm处弯回到11点处鼓环部位。剥离皮肤及骨膜,用针自槌骨柄钝性分离鼓膜,鼓膜脐部附着牢固处则用小鳄嘴剪仔细分离,避免刺穿鼓膜。将鼓膜外耳道皮瓣向前上方翻转,即可看清鼓室前部。如外耳道前壁过于突出,则在剥离前部皮肤后用匙或骨钻切除突出的骨壁。肿瘤切除后将鼓膜外耳道皮瓣复位。以浸有抗生素油膏的小纱条填压固定。填塞物一周后
Local anesthesia through the external auditory canal anterior tympanic surgery is quite difficult. The authors designed a simple method for 1 case of tympanic jugular bulb tumor, 2 cases of congenital cholesteatoma and 1 case of benign adenoma, tympanic exposure well, the tumor successfully removed. The external auditory canal incision was omega-shaped, starting from the drum ring at 6 o’clock, extending outward to the posterior wall of the external auditory meatus, reaching 6 to 8mm away from the drum loop back to the drum ring at 11 o’clock. Peel off the skin and periosteum, blunt dissection of the tympanic membrane with a needle from the ramus, tympanic membrane umbilical attachment firm with small crocodile mouth cut carefully separated to avoid piercing the tympanic membrane. The tympanic membrane outer ear flap flipped forward, you can see the tympanic front. If the front wall of the external ear canal is too prominent, the prominent bone wall is removed with a spoon or bone drill after stripping the anterior skin. Removal of the tympanic membrane of the external auditory canal after resection of the tumor. Filled with small gauze impregnated with antibiotic ointment fixed. After a week of stuffing