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Occlusion of the left main coronary artery and collateral circulation via the conus branch. 2009
Jose Alberto de Agustin, and
Ivan Javier Nunez-Gil, and
Maria del Carmen Manzano, and
David Vivas, and
Borja Ruiz Mateos, and
Rocio Carda, and
Isidre Vilacosta, and
Jose Luis Zamorano, and
Carlos Macaya
Instituto Cardiovascular, Hosptial Clinico San Carlos, Madrid, Spain. albertutor@hotmail.com
We report the case of a 71-year-old-man, a smoker, admitted for unstable angina. Subsequent investigation revealed complete proximal occlusion of the left main coronary with an unusual collateral circulation. The left coronary artery was filled by a large conus branch originating from the right sinus of Valsalva. This case shows the importance of looking for atypical collateral circulation in patients with chronic occlusion of the left main coronary artery and normal left ventricular function.
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