Lunsford L D, Maroon J C, Sheptak P E, Albin M S
J Neurosurg. 1979 Apr;50(4):525-7. doi: 10.3171/jns.1979.50.4.0525.
Two patients developed subdural tension pneumocephalus after undergoing posterior fossa surgery performed in the sitting position. The mechanism for entry of air into the intracranial compartment is analogous to the entry of air into an inverted soda-pop bottle. As the fluid pours out, air bubbles to the top of the container. We have thus referred to this as the "inverted pop-bottle syndrome." Computerized tomography provided prompt diagnosis and confirmed brain displacement. Twist-drill aspiration of the air resulted in improvement in both patients, although one patient subsequently died from an intracerebellar hemorrhage. Tension pneumocephalus appears to be another potential complication of posterior fossa surgery in the sitting position. This condition is easily diagnosed and treated, and should be considered whenever a patient fails to recover as expected following posterior fossa surgery.
两名患者在接受坐位后颅窝手术后出现了硬膜下张力性气颅。空气进入颅内腔隙的机制类似于空气进入倒置的汽水瓶。当液体流出时，气泡上升到容器顶部。因此，我们将此称为“倒置汽水瓶综合征”。计算机断层扫描可迅速做出诊断并证实脑移位。对空气进行钻孔抽吸使两名患者的病情均有所改善，不过一名患者随后死于小脑内出血。张力性气颅似乎是坐位后颅窝手术的另一个潜在并发症。这种情况易于诊断和治疗，并且在后颅窝手术后患者未能按预期恢复时均应予以考虑。
