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医源性血栓栓塞已是血管导管的主要并发症。在介入性血管造影中,使用内含小导管的大口径导管(F_(7-8))操作和延长插管时间可增加导管内外血栓形成。作者的研究对象是两组使用共轴系统、延长介入性操作时间的82位病人。使用一套三种共轴导管和分开式气囊栓塞物对外伤性颈内动脉海绵窦瘘、椎动脉痿或不能钳夹的动脉瘤栓塞治疗。A 组作了25次介入性操作,导管灌注液是含有肝素化盐水(1000单位肝素稀释在生理盐水中)。当使用Cordis 鞘时,该量增加一倍。操作前给1克阿司匹林。大多数病人部分凝血致活酶时间(PTT)约为60秒。结果该组发生两例血栓并发症,另两例
Iatrogenic thromboembolism is a major complication of vascular catheters. In interventional angiography, the use of large-diameter catheters (F_ (7-8)) with small catheters to manipulate and prolong the duration of intubation can increase intra- and extra-vascular thrombosis. The authors studied two cohorts of 82 patients who used a co-axial system to prolong the duration of interventional procedures. A set of three coaxial catheters and separate balloon embolization of traumatic carotid cavernous fistula, vertebral artery atrophy or can not clamp the aneurysm embolization. Group A performed 25 interventional procedures. The catheter was perfused with heparinized saline (1000 units heparin diluted in saline). This amount doubles when Cordis sheaths are used. Give 1 gram of aspirin before the procedure. Most patients have a partial thromboplastin time (PTT) of about 60 seconds. Results There were two thrombotic complications in this group, the other two cases