Barnwell S L, D'Agostino A N, Shapiro S L, Nesbit G M, Kellogg J X
Division of Neurosurgery and the Dotter Interventional Institute, Oregon Health Sciences University, Portland 97201, USA.
AJNR Am J Neuroradiol. 1997 Nov-Dec;18(10):1886-9.
Over a 31-month period, we performed four neurointerventional procedures after which unexpected foreign bodies were noted in multiple arteries. All four procedures had in common the use of Fastracker-18 infusion microcatheters. Histologically, the intravascular debris looked strikingly similar to the hydrophilic coating on the catheter. An in vitro test mimicking clinical use of the microcatheter revealed that the hydrophilic coating can separate from the catheter. Until the coating is refined to make it more resistant to stripping, it may be advisable to reduce the amount of back-and-forth movement of these microcatheters if they have been positioned through guide catheters with small inner diameters and angled tips.
在31个月的时间里，我们进行了4次神经介入手术，术后在多条动脉中发现了意外的异物。所有这4次手术都共同使用了Fastracker-18灌注微导管。组织学检查显示，血管内碎片与导管上的亲水涂层极为相似。一项模拟微导管临床使用的体外试验表明，亲水涂层可能会从导管上分离。在涂层得到改进以增强抗剥离能力之前，如果这些微导管是通过内径小且尖端成角度的引导导管放置的，建议减少其来回移动的次数。
