Spontaneous Collapse of Balloon Expandable Stent in Heavily Calcified Aorta

Taehwan Kim; Shigeo Ichihashi; Amane Kozuki; Daichi Fujimoto; Satoru Nagatomi; Francesco Bolstad; Junya Shite; Kimihiko Kichikawa

doi:10.3400/avd.cr.20-00015

Spontaneous Collapse of Balloon Expandable Stent in Heavily Calcified Aorta

Ann Vasc Dis. 2020 Jun 25;13(2):187-190. doi: 10.3400/avd.cr.20-00015.

Authors

Taehwan Kim^{1

2}, Shigeo Ichihashi¹, Amane Kozuki³, Daichi Fujimoto³, Satoru Nagatomi¹, Francesco Bolstad⁴, Junya Shite³, Kimihiko Kichikawa¹

Affiliations

¹ Department of Radiology, Nara Medical University, Kashihara, Nara, Japan.
² Department or Radiology, National Health Insurance Service ILSAN Hospital, Seoul, Korea.
³ Department of Cardiology, Osaka Saiseikai Nakatsu Hospital, Osaka, Japan.
⁴ Department of Clinical English, Nara Medical University, Kashihara, Nara, Japan.

Abstract

Balloon expandable stents (BES), which are made of stainless steel, are vulnerable to external compression, leading to deformation or collapse/fracture of the stents. In this report, two cases of complete collapse of BES are presented. In both cases, BES were placed in a heavily calcified aorta and subsequently collapsed without any evidence of external compression. Repeated pulsation of heavily calcified aorta was presumed to be the cause of the stent collapse.

Keywords: aorta; balloon expandable stent; stent collapse.