In-stent restenosis caused by a reprotruding calcified nodule and stent fracture in the hinged coronary artery

Tsukasa Murakami; Keisuke Kojima; Hiroyuki Jinnouchi; Masanori Takenoya

doi:10.1002/ccd.31156

In-stent restenosis caused by a reprotruding calcified nodule and stent fracture in the hinged coronary artery

Tsukasa Murakami, Keisuke Kojima, Hiroyuki Jinnouchi, Masanori Takenoya

School of Medicine

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

1 Citation (Scopus)

Abstract

Calcified nodules (CNs) cause in-stent restenosis (ISR) frequently. Although reprotrusion of CNs through stent struts is one of the mechanisms of ISR, the process of this phenomenon has not been understood. Furthermore, little is known about stent fracture (SF) occurring at the site of CNs. We are presenting a case of an 82-year-old male who developed early ISR due to the combination of an in-stent CN and SF in the hinged right coronary artery. The process of progression of the in-stent CN was recorded sequentially with angiography and intravascular ultrasound (IVUS). IVUS from the fulcrum of hinge motion revealed the repetitive protruding movement of the CN into the stent lumen.

Original language	English
Pages (from-to)	511-515
Number of pages	5
Journal	Catheterization and Cardiovascular Interventions
Volume	104
Issue number	3
DOIs	https://doi.org/10.1002/ccd.31156
Publication status	Published - 1 Sept 2024

Keywords

calcified nodule
hinge motion
in-stent restenosis
stent fracture

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10.1002/ccd.31156

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title = "In-stent restenosis caused by a reprotruding calcified nodule and stent fracture in the hinged coronary artery",

abstract = "Calcified nodules (CNs) cause in-stent restenosis (ISR) frequently. Although reprotrusion of CNs through stent struts is one of the mechanisms of ISR, the process of this phenomenon has not been understood. Furthermore, little is known about stent fracture (SF) occurring at the site of CNs. We are presenting a case of an 82-year-old male who developed early ISR due to the combination of an in-stent CN and SF in the hinged right coronary artery. The process of progression of the in-stent CN was recorded sequentially with angiography and intravascular ultrasound (IVUS). IVUS from the fulcrum of hinge motion revealed the repetitive protruding movement of the CN into the stent lumen.",

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T1 - In-stent restenosis caused by a reprotruding calcified nodule and stent fracture in the hinged coronary artery

AU - Murakami, Tsukasa

AU - Kojima, Keisuke

AU - Jinnouchi, Hiroyuki

AU - Takenoya, Masanori

PY - 2024/9/1

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N2 - Calcified nodules (CNs) cause in-stent restenosis (ISR) frequently. Although reprotrusion of CNs through stent struts is one of the mechanisms of ISR, the process of this phenomenon has not been understood. Furthermore, little is known about stent fracture (SF) occurring at the site of CNs. We are presenting a case of an 82-year-old male who developed early ISR due to the combination of an in-stent CN and SF in the hinged right coronary artery. The process of progression of the in-stent CN was recorded sequentially with angiography and intravascular ultrasound (IVUS). IVUS from the fulcrum of hinge motion revealed the repetitive protruding movement of the CN into the stent lumen.

AB - Calcified nodules (CNs) cause in-stent restenosis (ISR) frequently. Although reprotrusion of CNs through stent struts is one of the mechanisms of ISR, the process of this phenomenon has not been understood. Furthermore, little is known about stent fracture (SF) occurring at the site of CNs. We are presenting a case of an 82-year-old male who developed early ISR due to the combination of an in-stent CN and SF in the hinged right coronary artery. The process of progression of the in-stent CN was recorded sequentially with angiography and intravascular ultrasound (IVUS). IVUS from the fulcrum of hinge motion revealed the repetitive protruding movement of the CN into the stent lumen.

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In-stent restenosis caused by a reprotruding calcified nodule and stent fracture in the hinged coronary artery

Abstract

Keywords

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