Yu Simon Chun Ho, Ho Simon S M, Fung Terrance M K, Ip Chei B, Lam Yuk-Hoi, Lau James Y W
Department of Diagnostic Radiology and Organ Imaging, Prince of Wales Hospital, The Chinese University of Hong Kong, 30-32 Ngan Shing Street, Shatin, New Territories, Hong Kong, SAR.
J Vasc Interv Radiol. 2005 Oct;16(10):1373-7. doi: 10.1097/01.RVI.0000175335.99014.E4.
A coaxial technique was introduced for successful embolization of a large fusiform splenic artery aneurysm in a vessel with a large caliber and a great degree of tortuosity. A standard 5-F angioplasty catheter was placed at the immediate afferent artery for occlusion of arterial inflow into the aneurysm, thereby preventing intraaneurysmal hypertension during embolization of the efferent segment. This was followed by coaxial microcatheterization of the immediate efferent segment for coil embolization, and then embolization of the afferent segment. It is postulated that this approach may improve the safety of embolization of large aneurysms with unfavorable morphology by decreasing the pressure on the aneurysm just after closure of the efferent segment.
我们采用同轴技术成功栓塞了一例位于大口径、高度迂曲血管内的大型梭形脾动脉瘤。将一根标准的5F血管成形导管置于动脉瘤的直接供血动脉处，以阻断进入动脉瘤的动脉血流，从而在栓塞动脉瘤的流出段时防止瘤内高血压。随后，通过同轴微导管对动脉瘤的直接流出段进行弹簧圈栓塞，然后栓塞供血段。据推测，这种方法可能通过降低流出段闭塞后动脉瘤上的压力，提高对形态不佳的大型动脉瘤进行栓塞的安全性。
