Total occlusion of the circumflex artery with collateral supply from the conus artery. 1991

G J Mishkel, and E Biagioni, and H Stolberg
Department of Radiology, Hamilton General Hospital, McMaster University, Ontario, Canada.

The conus artery has long been recognized as an important source of collateral blood supply to a significantly diseased left anterior descending artery. This artery which arises 50% of the time from a separate orifice in the right sinus of Valsalva may also provide collateral circulation to a diseased right coronary artery. To date, there have been no reported instances of the conus artery supplying collateral flow to a totally occluded circumflex artery. In this report we describe such a case in a patient with severe three vessel disease. The implications of such a finding in patient management are also discussed.

UI MeSH Term Description Entries
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D003097 Collateral Circulation Maintenance of blood flow to an organ despite obstruction of a principal vessel. Blood flow is maintained through small vessels. Blood Circulation, Collateral,Circulation, Collateral,Collateral Blood Circulation,Collateral Circulation, Blood,Blood Collateral Circulation,Circulation, Blood Collateral,Circulation, Collateral Blood,Collateral Blood Circulations,Collateral Circulations,Collateral Circulations, Blood
D003327 Coronary Disease An imbalance between myocardial functional requirements and the capacity of the CORONARY VESSELS to supply sufficient blood flow. It is a form of MYOCARDIAL ISCHEMIA (insufficient blood supply to the heart muscle) caused by a decreased capacity of the coronary vessels. Coronary Heart Disease,Coronary Diseases,Coronary Heart Diseases,Disease, Coronary,Disease, Coronary Heart,Diseases, Coronary,Diseases, Coronary Heart,Heart Disease, Coronary,Heart Diseases, Coronary
D003331 Coronary Vessels The veins and arteries of the HEART. Coronary Arteries,Sinus Node Artery,Coronary Veins,Arteries, Coronary,Arteries, Sinus Node,Artery, Coronary,Artery, Sinus Node,Coronary Artery,Coronary Vein,Coronary Vessel,Sinus Node Arteries,Vein, Coronary,Veins, Coronary,Vessel, Coronary,Vessels, Coronary
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000792 Angiography Radiography of blood vessels after injection of a contrast medium. Arteriography,Angiogram,Angiograms,Angiographies,Arteriographies
D017023 Coronary Angiography Radiography of the vascular system of the heart muscle after injection of a contrast medium. Angiography, Coronary,Angiographies, Coronary,Coronary Angiographies

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