Entrapment of a Guidewire Caused by the Chiari Network During Implantation of a Central Venous Port: A Case Report

A central venous (CV) port is an important device for cancer treatment, as it enables safe venous access. We herein report the case of an 82-year-old man with recurrent gastric cancer who experienced J-tip spring guidewire entrapment caused by the Chiari network during CV port implantation. The guidewire was pulled away, with a piece of tissue at its tip. The tissue comprised cardiomyocytes, stratified collagenous fibers, and elastic fibers. The condition was diagnosed as a Chiari network. Based on our experience, operators should be aware of the risk of Chiari network involvement even with a normal transthoracic echocardiogram result.

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Publication Details

Journal
Internal Medicine
Published
2025-01-01
DOI
https://doi.org/10.2169/internalmedicine.6256-25
Primary Topic
Central Venous Catheters and Hemodialysis
Type
article
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article

Entrapment of a Guidewire Caused by the Chiari Network During Implantation of a Central Venous Port: A Case Report

Chikashi Ishioka, Hisato Kawakami, Tomoyuki Iwasaki, Rika Saito et al.
Internal Medicine
Central Venous Catheters and Hemodialysis
article

Entrapment of a Guidewire Caused by the Chiari Network During Implantation of a Central Venous Port: A Case Report

Chikashi Ishioka, Hisato Kawakami, Tomoyuki Iwasaki, Rika Saito, Masanobu Takahashi, Shonosuke Wakayama, Yoshifumi Kawamura, Yuya Yoshida, Kota Ouchi, Hirofumi Watanabe, Hiromitsu Tannai, Shuto Kodera
article en

Abstract

A central venous (CV) port is an important device for cancer treatment, as it enables safe venous access. We herein report the case of an 82-year-old man with recurrent gastric cancer who experienced J-tip spring guidewire entrapment caused by the Chiari network during CV port implantation. The guidewire was pulled away, with a piece of tissue at its tip. The tissue comprised cardiomyocytes, stratified collagenous fibers, and elastic fibers. The condition was diagnosed as a Chiari network. Based on our experience, operators should be aware of the risk of Chiari network involvement even with a normal transthoracic echocardiogram result.

Internal Medicine
Toho University (JP), Tohoku University (JP), Tohoku University Hospital (JP), Osaki Citizen Hospital (JP), Sendai Shakai Hoken Hospital (JP)
Openalex Percentile: Top 50%
Central Venous Catheters and Hemodialysis
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Entrapment of a Guidewire Caused by the Chiari Network During Implantation of a Central Venous Port: A Case Report — Chikashi Ishioka, Hisato Kawakami, et al. · Internal Medicine (2025) | TGRS Research Map | TGRS