Horikoshi Toru, Imamura Shunichi, Matsuzaki Zensei, Umeda Takako, Uchida Mikito, Mitsuka Kentaro, Kinouchi Hiroyuki
Department of Neurosurgery, University of Yamanashi, Yamanashi, Japan.
Headache. 2007 Jan;47(1):131-5. doi: 10.1111/j.1526-4610.2006.00661.x.
A 48-year-old slender woman presented with a rare case of spontaneous intracranial hypotension syndrome manifesting as patulous Eustachian tube. The patient complained of sudden onset of ear fullness and nasal voice as well as typical orthostatic headache. Patulous Eustachian tube was identified by observation of synchronous movement of the tympanic membrane with respiration and swallowing. The diagnosis of spontaneous intracranial hypotension was confirmed by negative cerebrospinal fluid pressure, and typical magnetic resonance imaging and radioisotope cisternography findings. All symptoms completely resolved within a few days after epidural blood patch treatment. Changes in the venous blood distribution led by collapse of the dural sac of the cervical spine in the standing position presumably caused decreased size of the pterygoid venous plexus around the Eustachian tube.
一名48岁的瘦长女性出现了罕见的自发性颅内低压综合征，表现为咽鼓管异常开放。患者主诉突然出现耳闷、鼻音以及典型的直立性头痛。通过观察鼓膜与呼吸和吞咽的同步运动确定为咽鼓管异常开放。经脑脊液压力阴性以及典型的磁共振成像和放射性核素脑池造影检查结果确诊为自发性颅内低压。硬膜外血贴治疗后数天内所有症状完全缓解。站立位时颈椎硬脊膜囊塌陷导致静脉血分布改变，可能致使咽鼓管周围翼静脉丛大小减小。
