Occlusion of the left main coronary artery and collateral circulation via the conus branch.
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.
de Agustin
Jose Alberto
JA
Instituto Cardiovascular, Hosptial Clinico San Carlos, Madrid, Spain. albertutor@hotmail.com
Nunez-Gil
Ivan Javier
IJ
del Carmen Manzano
Maria
M
Vivas
David
D
Mateos
Borja Ruiz
BR
Carda
Rocio
R
Vilacosta
Isidre
I
Zamorano
Jose Luis
JL
Macaya
Carlos
C
D000368:Aged; D000789:Angina, Unstable / Q000209:etiology / Q000503:physiopathology; D003097:Collateral Circulation; D017023:Coronary Angiography / Q000379:methods; D003326:Coronary Circulation; D054059:Coronary Occlusion / Q000150:complications / Q000000981:diagnostic imaging / Q000503:physiopathology* / Q000601:surgery; D006801:Humans; D007387:Internal Mammary-Coronary Artery Anastomosis; D008297:Male; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome