Korean Circ J.  2011 Dec;41(12):763-765. 10.4070/kcj.2011.41.12.763.

Stent Fracture at the Proximal Shaft of the Left Main Stem

• Lee JH
• Seo SM
• Kim EO
• Ahn HJ
• Lee YW
• Cho YH
• Baek I
• Oh YS
• Yu J
• Seung KB

• KMID: 1776255
• DOI: http://doi.org/10.4070/kcj.2011.41.12.763

Abstract

Stent fracture is likely to be caused due to mechanical stress at the hinge point or kinking movement at the point of aneurysm formation with stent malapposition. To our knowledge, this is the first published report of stent fracture at the proximal shaft of the left main stem in a patient with acute myocardial infarction.

Keyword

Stent fracture; Left main stem; Acute myocardial infarction

MeSH Terms

Aneurysm
Humans
Myocardial Infarction
Stents
Stress, Mechanical

Figure

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  Fig. 1 A: index coronary angiography showed diffuse, irregular narrowing from ostium of the left main stem to the mid left anterior descending coronary artery. B: index coronary angiography showed a good patency without luminal narrowing after percutaneous coronary intervention.

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  Fig. 2 A: follow-up coronary angiography showed a small filling defect at the proximal shaft of the LMS (indicated by an arrow). B: fluoroscopy showed stent-free lesion at the proximal shaft of the LMS (indicated by an arrow). C: IVUS showed a stent strut at the proximal part of stent fracture and ectatic change with malapposition (indicated by an arrow). D: IVUS showed a stent-free lumen corresponding to stent fracture. E: IVUS showed a stent strut at the distal part of stent fracture and ectatic change with malapposition (indicated by an arrow). LMS: left main stem, IVUS: intravascular ultrasound.

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