Skull-base tumors: ethanol embolization of the cavernous carotid artery.
Skull-base tumors: ethanol embolization of the cavernous carotid artery.
复制标题
颅底肿瘤：海绵状颈动脉乙醇栓塞。
作者：
C. Jungreis
颅底肿瘤常由颈内动脉海绵状分支(ICA)供血。术前对这类椎弓根进行栓塞术可以加快后续手术的速度。然而，有时肿瘤血管很多，而且非常小，所以选择性插管是不可能的，特别是当肿瘤侵犯海绵窦时。在7名此类患者的8次手术中，肿瘤用100%乙醇进行栓塞，方法是暂时闭塞饲养器上方的颈内动脉，同时用微导管将乙醇注入尽可能靠近饲养器的地方。在透视下，所有病例的肿瘤红晕都明显减少。在一名患者中，手术没有获得明显的好处。在另一名患者中，由于失血而流产的第一次手术在栓塞术后成功完成。其他五名患者的手术场地比预期的要干燥得多。
Tumors of the skull base frequently have some blood supply from cavernous branches of the internal carotid artery (ICA). Preoperative embolization of such pedicles can expedite the subsequently performed surgery. Sometimes, however, the tumor vessels are multiple and very small so selective catheterizations are not possible, particularly when the tumor invades the cavernous sinus. In eight procedures in seven patients of this type, the tumor was embolized with 100% ethyl alcohol by temporarily occluding the ICA above the feeders while infusing ethanol with a microcatheter as close to the feeders as possible. At fluoroscopy, tumor blush was seen to have decreased markedly in all cases. In one patient, no obvious benefit was gained at surgery. In another patient, a first surgery that was aborted due to blood loss was successfully completed after embolization. The other five patients had much drier surgical fields than expected.