“猪尾圈套入”技术：一种简便快捷的方法，用于取出末端难以触及的导管碎片。
"Pigtail through snare" technique: an easy and fast way to retrieve a catheter fragment with inaccessible ends.
作者信息
Mori Kensaku, Somagawa Chika, Kagaya Shun, Sakai Masafumi, Homma Satoshi, Nakajima Takahito
机构信息
Department of Radiology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305-8575, Japan.
Department of Radiology, University of Tsukuba Hospital, 2-1-1 Amakubo, Tsukuba, 305-8576, Japan.
出版信息
CVIR Endovasc. 2021 Mar 2;4(1):24. doi: 10.1186/s42155-021-00218-6.
BACKGROUND
A catheter fragment with inaccessible ends can be retrieved using the well-known two-step method: making a free end with a pigtail catheter and seizing it with a snare catheter. Here we propose an easier and faster modification, named the "pigtail through snare" technique.
CASE PRESENTATION
A 61-year-old female patient underwent removal of a central venous catheter fragment migrating to the right atrium. Both ends located in the right atrial appendage and left hepatic vein were inaccessible. Initially, a snare loop was opened in the inferior vena cava and a pigtail catheter was advanced through the snare loop to hook the catheter fragment. The free end was created by pulling the pigtail catheter, dragged automatically into the snare loop, grasped, and retrieved immediately.
CONCLUSIONS
By passing the pigtail catheter through the snare loop in advance, the snaring maneuver becomes easy and fast in retrieving the catheter fragment with inaccessible ends.
背景
对于末端难以触及的导管碎片，可采用众所周知的两步法进行取出：用猪尾导管制造一个游离端，并用圈套导管抓住它。在此，我们提出一种更简便快捷的改良方法，称为“圈套器套入猪尾导管”技术。
病例介绍
一名61岁女性患者接受了迁移至右心房的中心静脉导管碎片取出术。位于右心耳和左肝静脉的两端均难以触及。最初，在下腔静脉打开一个圈套环，将猪尾导管推进穿过圈套环以钩住导管碎片。通过拉动猪尾导管制造游离端，其会自动被拖入圈套环，抓住后立即取出。
结论
通过预先将猪尾导管穿过圈套环，在取出末端难以触及的导管碎片时，圈套操作变得简便快捷。
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