Ventriculoperitoneal shunt flow dependency on the number of patent holes in a ventricular catheter
Ventriculoperitoneal shunt flow dependency on the number of patent holes in a ventricular catheter
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DOI：
10.1159/000028979
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发表时间：
2000-07-01
影响因子：
0.7
通讯作者：
Cobbold, RSC
中科院分区：
文献类型：
--
作者：
Ginsberg, HJ;Sum, A;Cobbold, RSC
微创再通梗阻性脑室导管是目前正在研究的一种新的治疗方式。已经证明，阻塞的脑室导管可以通过超声空化、光纤激光能量输送和电烙术至少部分地重新打开。然而，不知道为了建立可接受的压力-流量特性，必须重新打开多少孔。在这项研究中，部分阻塞脑室导管的压力-流量关系，确定使用实验和电路/计算机模型。已经证明，在所有情况下，当脑室导管中只有一个500 μ m直径的孔允许流动时，产生的额外压力不超过0.5 cm水柱。脑室导管的部分再通可提供可接受的CSF流体动力学。版权所有（C）2000 S. Karger AG，巴塞尔。
Minimally invasive recanalization of obstructed ventricular catheters is a new treatment modality currently under investigation. It has been shown that blocked ventricular catheters can be at least partly reopened with ultrasonic cavitation, fiberoptic delivery of laser energy and electrocautery. it is not known, however, how many of the holes must be reopened in order to establish acceptable pressure-flow characteristics. In this study, the pressure-flow relationship of partially obstructed ventricular catheters was determined using experimental and electrical circuit/computer models. It has been demonstrated in all cases that an additional pressure of no more than 0.5 cm of water is generated when only a single 500-mu m-diameter hole in the ventricular catheter permits flow. Partial recanalization of a ventricular catheter provides acceptable CSF hydrodynamics. Copyright (C) 2000 S. Karger AG, Basel.