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为了减少动静脉畸形(AVMs)和多发性硬脑膜动静脉瘘(DAVFs)的再通率,作者用聚乙烯醇(PVA)微球与铂纤维圈对15例大脑AVMs和5例多发性DAVFs进行了栓塞。男性8例,女性12例。主要临床症状为癫痫,脑出血和各种神经体征。大多数病例用Tracker-18-Unibody导管与尖端能塑形易操作的导引钢丝。PVA微球大小从150～200μm。透视下将PVA微球栓塞填满病灶,一经血流稍微减慢,就停止栓塞。为了防止微球溢入正常动脉,即使停留在导管内的微球也要吸出。铂涤纶纤维圈尽量放在供应动脉远端。随着动脉直径大小,用直或螺旋形圈。首先圈要足够小,因注入生理盐水或造影剂时要使圈直接冲到远侧的病灶。为了封闭供应动脉和阻止小圈返流,操作结束后放入大的螺旋形圈。9例大脑AVMs中,5例1次完全性栓塞。为了逐渐适应新的血液动力学,4
In order to reduce the recanalization rates of AVMs and DAVFs, 15 AVMs of the brain and 5 cases of multiple DAVFs were treated with polyvinyl alcohol (PVA) microspheres and platinum fiber circles Embolic. 8 males and 12 females. The main clinical symptoms are epilepsy, cerebral hemorrhage and various neurological signs. Most cases use the Tracker-18-Unibody catheter and tip to create easy-to-use guide wires. PVA microspheres size from 150 ~ 200μm. Under fluoroscopy, the PVA microspheres were filled completely into the lesion, and once the blood flow slowed down, the embolization was stopped. In order to prevent microspheres overflowing into the normal arteries, microspheres that remain in the catheter should be aspirated. Platinum polyester fiber ring as far as possible on the supply artery. With the diameter of the artery, with straight or spiral ring. First of all, the ring should be small enough to allow the ring to directly flush the distal lesion when injecting saline or contrast media. In order to close the supply artery and prevent the small circle of reflux, the operation into a large spiral circle. In 9 cases of brain AVMs, 5 cases of a complete embolization. In order to gradually adapt to the new hemodynamics, 4