Key result
Right coronary dominance was observed in 83.11% of the 77 dissected hearts, with the posterior interventricular artery arising from the right coronary artery.
Observational (n=77)
No
Absolute Event Rate: 83.11% vs 16.88%
Right coronary dominance is present in the vast majority (83.11%) of hearts, providing important anatomical context for coronary interventions and surgical procedures.
Small cadaveric series of coronary dominance; leaves open need for in vivo validation before procedural application.
With the increasing trends of coronary heart diseases, the knowledge of variations in the coronary arteries is of paramount importance when considering the various surgical procedures.This study was conducted to know the variations in coronary artery dominance pattern.77 formalin fixed hearts were dissected.Origin and area of distribution of posterior interventricular artery and SA nodal artery were noted.In 64 hearts (83.11%) posterior inter ventricular artery was a branch of right coronary artery and in 13 hearts (16.88%) it was a branch of left circumflex artery.SA nodal artery was a branch of dominant artery in 46 hearts (59.74%).It arose from non-dominant artery in 29 hearts (37.66%).In the remaining 2 hearts (2.6%) SA nodal artery was a branch from both.
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Darmender et al. (2014) conducted an observational in Coronary artery dominance (n=77). Right coronary artery dominance vs. Left circumflex artery dominance was evaluated on Origin of posterior interventricular artery. Right coronary dominance was observed in 83.11% of the 77 dissected hearts, with the posterior interventricular artery arising from the right coronary artery.
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