Table of Contents
ISRN Cardiology
Volume 2011 (2011), Article ID 212851, 4 pages
Case Report

Coronary Artery Perforation and Regrowth of a Side Branch Occluded by a Polytetrafluoroethylene-Covered Stent Implantation

Department of Cardiology, Karolinska Institute at Karolinska University Hospital, Huddinge, 141 86 Stockholm, Sweden

Received 15 March 2011; Accepted 4 April 2011

Academic Editors: F. Boucher, E. Liehn, and F. Russell

Copyright © 2011 Shams Y-Hassan et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Stenting of the right coronary artery stenosis caused coronary perforation and profound dye (blood) extravasation in a 69-year-old female patient. Instantaneous balloon inflation followed by implantation of a polytetrafluoroethylene- (PTFE-)covered stent sealed the coronary perforation, restored the blood flow, and perceivably caused acute occlusion of a large side branch (SB). The immediate in situ balloon inflation prevented the development of cardiac tamponade. Surprisingly, followup coronary angiography 4 and 11 months later showed spontaneous recanalization of the SB occluded by PTFE-covered stent. The SB was filled through a channel beginning at the end of the covered stent streaming retrogradely beneath it toward the SB ostium. Up to the best of our knowledge, this is the first described case of late spontaneous recanalization of as SB occluded by a PTFE-covered stent.