评价不同类型球囊重塑微导管在实验模型中对血管壁产生的压力差异。
Evaluation of the differences in pressure applied to the vessel wall by different types of balloon remodeling microcatheters in an experimental model.
机构信息
Department of Neurosurgery, 220905Nagoya University Graduate School of Medicine, Japan.
Department of Neurosurgery, 13864National Hospital Organization Nagoya Medical Center, Japan.
出版信息
Interv Neuroradiol. 2022 Jun;28(3):323-331. doi: 10.1177/15910199211031765. Epub 2021 Sep 13.
BACKGROUND
We examined compliance differences among balloon remodeling microcatheters, which have not been established previously.
METHODS
Straight and 120° angulated vascular models were created in a 3 mm diameter tube with 3 mm hole (vascular model A), a tube with a 4 mm hole (vascular model B), and a 4 mm diameter tube (vascular model C). We compared the pressure exerted when each balloon was herniated 1 or 2 mm between three compliant balloons (SHOURYU SR, TransForm C, and Scepter C) and four super-compliant balloons (HyperForm, SHOURYU HR, TransForm SC, and Scepter XC).
RESULTS
In vascular model A, there was a significant difference in the pressure exerted by compliant balloons and super-compliant balloons in both the straight and angulated models. In the straight model (1 and 2 mm), the lowest pressure was exerted by HyperForm (super-compliant balloons group) and SHOURYU SR (compliant balloons group). The lowest pressure was exerted in the angulated model by HyperForm (super-compliant balloons group) and Scepter C (compliant balloons group). The Scepter balloon exerted higher pressure in the straight model than other balloon remodeling microcatheters but less in the angulated model. In vascular model B, the pressure decreased in all balloons compared with model A. In vascular model C, the pressure increased in all balloons compared with model A.
CONCLUSIONS
Pressure differed across balloon remodeling microcatheters. In addition, vessel shape and diameter, and hole size, affected the results. Our findings can help select balloon remodeling microcatheters.
背景
我们研究了之前尚未确定的球囊重塑微导管的顺应性差异。
方法
在直径为 3 毫米、有 3 毫米孔的管（血管模型 A）、有 4 毫米孔的管（血管模型 B）和 4 毫米直径的管（血管模型 C）中创建直的和 120°成角的血管模型。我们比较了三种顺应性球囊（SHOURYU SR、Transform C 和 Scepter C）和四种超顺应性球囊（HyperForm、SHOURYU HR、Transform SC 和 Scepter XC）在每个球囊疝出 1 或 2 毫米时施加的压力。
结果
在血管模型 A 中，在直的和成角的模型中，顺应性球囊和超顺应性球囊施加的压力有显著差异。在直的模型（1 和 2 毫米）中，压力最低的是 HyperForm（超顺应性球囊组）和 SHOURYU SR（顺应性球囊组）。在成角模型中，压力最低的是 HyperForm（超顺应性球囊组）和 Scepter C（顺应性球囊组）。Scepter 球囊在直的模型中施加的压力高于其他球囊重塑微导管，但在成角模型中施加的压力较低。在血管模型 B 中，与模型 A 相比，所有球囊的压力都降低了。在血管模型 C 中，与模型 A 相比，所有球囊的压力都增加了。
结论
球囊重塑微导管的压力不同。此外，血管形状和直径以及孔的大小都会影响结果。我们的发现可以帮助选择球囊重塑微导管。
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