Effects of acute angle, proximal bending, and distal bending in the deployment vessels on incomplete low-profile visualized intraluminal support (LVIS) expansion: an in vitro study.

Journal of Neurointerventional Surgery
Hiroyuki IkedaHiroki Toda

Abstract

A low-profile visualized intraluminal support (LVIS) device may incompletely expand during stent deployment in tortuous vessels. However, the cause of incomplete expansion remains uninvestigated. We aimed to examine in vitro the factors causing incomplete expansion in LVIS deployment by using various vessel models. A linear model group was created by connecting linear silicone tubes (inner diameter 4 mm) at both sides of the LVIS deployment vessel (inner diameter 4 mm) with different curvature angles of 10-140° at 10° intervals. For comparison, proximal and distal bending model groups were created, both with 90° bending on the proximal/distal larger curvature side of the deployment vessel. A single operator macroscopically deployed an LVIS (4.5×32 mm) four times in each model and 56 times in each group. In each model group the LVIS deployment vessel with a narrow curvature angle incompletely expanded. Incomplete expansion occurred significantly more frequently in the distal bending model group (34%, 19/56) compared with that in the linear model group (14.3%, 8/56; p<0.001), as well as in the proximal bending model group (59%, 33/56) compared with that in the distal bending model group (p<0.05). Compared with the linear model gr...Continue Reading

References

Feb 22, 2012·Journal of Neurointerventional Surgery·Raymond D TurnerImran Chaudry
Jan 10, 2014·Neurosurgery·Travis M DumontElad I Levy
May 16, 2014·Journal of Neurointerventional Surgery·Wojciech PoncyljuszThomas H Burke
Aug 21, 2016·Journal of Neurointerventional Surgery·Jai Jai Shiva ShankarDaniela Iancu
Sep 2, 2016·Journal of Neurointerventional Surgery·Hideo ChiharaSusumu Miyamoto
Aug 6, 2018·Journal of Neurointerventional Surgery·Bradley A GrossBrian Thomas Jankowitz

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Citations

Jan 23, 2021·Journal of Neurointerventional Surgery·Jian ZhangRose Du

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