A Case of Migration of a Hydrogel Spacer for Radiotherapy into the Pulmonary Artery

Katsuhide Kojima; Yuka Takahashi; Soichi Sugiyama; Yudai Asano; Nanako Okawa; Satoko Makimoto; Fumiyo Higaki; Toshihiro Iguchi; Takao Hiraki

doi:10.18926/AMO/66157

A Case of Migration of a Hydrogel Spacer for Radiotherapy into the Pulmonary Artery

Katsuhide Kojima, Yuka Takahashi, Soichi Sugiyama, Yudai Asano, Nanako Okawa, Satoko Makimoto, Fumiyo Higaki, Toshihiro Iguchi, Takao Hiraki

Research output: Contribution to journal › Article › peer-review

Abstract

A 67-year-old man was referred to our hospital for the diagnosis and treatment of prostate cancer. Multidisciplinary discussion led to intensity-modulated radiotherapy preceded by hormone therapy. Before radiotherapy, a biodegradable hydrogel spacer (HS) was placed between the prostate and rectum to reduce radiation injury risk. Three weeks postplacement, pelvic magnetic resonance imaging revealed HS migration into the pelvic vein. Subsequent whole-body contrast-enhanced computed tomography (CECT) revealed HS migration into the pulmonary artery. The patient showed no symptoms or clinical signs. Radiotherapy was completed uneventfully. Complete absorption of the migrated HS was confirmed using CECT images 5 months postplacement.

Original language	English
Pages (from-to)	647-650
Number of pages	4
Journal	Acta medica Okayama
Volume	77
Issue number	6
DOIs	https://doi.org/10.18926/AMO/66157
Publication status	Published - 2023

Keywords

hydrogel spacer
prostate cancer
pulmonary embolism
radiotherapy

ASJC Scopus subject areas

General Biochemistry,Genetics and Molecular Biology

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.18926/AMO/66157

Cite this

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abstract = "A 67-year-old man was referred to our hospital for the diagnosis and treatment of prostate cancer. Multidisciplinary discussion led to intensity-modulated radiotherapy preceded by hormone therapy. Before radiotherapy, a biodegradable hydrogel spacer (HS) was placed between the prostate and rectum to reduce radiation injury risk. Three weeks postplacement, pelvic magnetic resonance imaging revealed HS migration into the pelvic vein. Subsequent whole-body contrast-enhanced computed tomography (CECT) revealed HS migration into the pulmonary artery. The patient showed no symptoms or clinical signs. Radiotherapy was completed uneventfully. Complete absorption of the migrated HS was confirmed using CECT images 5 months postplacement.",

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AU - Kojima, Katsuhide

AU - Takahashi, Yuka

AU - Sugiyama, Soichi

AU - Asano, Yudai

AU - Okawa, Nanako

AU - Makimoto, Satoko

AU - Higaki, Fumiyo

AU - Iguchi, Toshihiro

AU - Hiraki, Takao

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N2 - A 67-year-old man was referred to our hospital for the diagnosis and treatment of prostate cancer. Multidisciplinary discussion led to intensity-modulated radiotherapy preceded by hormone therapy. Before radiotherapy, a biodegradable hydrogel spacer (HS) was placed between the prostate and rectum to reduce radiation injury risk. Three weeks postplacement, pelvic magnetic resonance imaging revealed HS migration into the pelvic vein. Subsequent whole-body contrast-enhanced computed tomography (CECT) revealed HS migration into the pulmonary artery. The patient showed no symptoms or clinical signs. Radiotherapy was completed uneventfully. Complete absorption of the migrated HS was confirmed using CECT images 5 months postplacement.

AB - A 67-year-old man was referred to our hospital for the diagnosis and treatment of prostate cancer. Multidisciplinary discussion led to intensity-modulated radiotherapy preceded by hormone therapy. Before radiotherapy, a biodegradable hydrogel spacer (HS) was placed between the prostate and rectum to reduce radiation injury risk. Three weeks postplacement, pelvic magnetic resonance imaging revealed HS migration into the pelvic vein. Subsequent whole-body contrast-enhanced computed tomography (CECT) revealed HS migration into the pulmonary artery. The patient showed no symptoms or clinical signs. Radiotherapy was completed uneventfully. Complete absorption of the migrated HS was confirmed using CECT images 5 months postplacement.

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KW - pulmonary embolism

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A Case of Migration of a Hydrogel Spacer for Radiotherapy into the Pulmonary Artery

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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