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ANATOMICAL VARIATIONS OF THE CORONARY ARTERIES AND ORIGIN OF BLOOD SUPPLY TO SINOAURICULAR AND ATRIOVENTRICULAR NODES DETERMINED ON THE BASIS OF POSTMORTEM CORONARY ANGIOGRAPHY
Author(s) -
Paulsen Stein,
Vetner M.
Publication year - 1973
Publication title -
acta pathologica microbiologica scandinavica section a pathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.909
H-Index - 88
eISSN - 1600-0463
pISSN - 0365-4184
DOI - 10.1111/j.1699-0463.1973.tb03572.x
Subject(s) - coronary arteries , medicine , blood supply , cardiology , coronary sinus , artery , left coronary artery , right coronary artery , atrioventricular node , coronary angiography , sinus (botany) , angiography , surgery , myocardial infarction , tachycardia , botany , genus , biology
On the basis of postmortem coronary angiography and macroscopic examination, the anatomical variations of the coronary arteries and origin of the blood supply to the sinus node and atrioventricular node was studied. Four hundred coronary angiograms were performed of which 315 could be employed. Anatomic variations of the coronary arteries were classified according to the system mentioned in Schlesinger's 1940 study. In the present study we found 70.8 per cent of the coronary systems were of the “right type” 19.7 per cent of the “balanced type” and 9.5 per cent of the “left type”. Origin of the blood supply to the sinus node (SN) was the right coronary artery in 63.8 per cent and the left coronary artery in 36.2 per cent. Corresponding figures for the origin of the blood supply to the atrioventricular node (AVN) was 90.5 per cent from the right coronary artery and 9.5 per cent from the left coronary artery. There was no statistically significant difference in sex distribution.