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报道手术治疗脑疝疝入鼓室-乳突35例。致病原因多与手术有关,曾经多次手术者尤易发生,共26例。除中耳-乳突手术外,少数是发生于颅脑外伤修复手术和神经外科;其次是由于颅脑外伤和中耳乳突炎及并发胆脂瘤和硬脑膜下脓肿者;偶可见于先天性天盖缺损。中耳乳突炎或中耳乳突手术后发生脑疝常有持续性耳流脓,进行性听力下降;少数患者有脑脊液耳漏,有的患者有反复发作脑膜炎或癫痫样发作史;临床检查有时能在中耳乳突腔见到搏动性块状物。X线断层相多能显示出天盖缺损,CT扫描更容易明确诊断。手术治疗一般采用耳后切口,经乳突进路,
Reported surgical treatment of hernia hernia into the tympanoid - mastoid in 35 cases. The cause of the disease and more related to surgery, who have been more prone to surgery, a total of 26 cases. In addition to the middle ear - mastoid surgery, a few occurred in traumatic brain injury repair surgery and neurosurgery; followed by traumatic brain injury and otitis media and concurrent cholesteatoma and subdural abscess; even found in the innate Sexual gland defect. Middle ear mastoid or middle ear mastoid process often occurs after hernia hernia, progressive hearing loss; a few patients have cerebrospinal fluid leak, and some patients have recurrent episodes of meningitis or epilepsy; clinical examination Pulses can sometimes be seen in the medullary cavity. X-ray tomography can show more than the canopy defect, CT scan easier to confirm the diagnosis. Surgery is generally used after the incision, the mastoid approach,