The sinoatrial node artery had its origin in the right coronary artery in 52 cases (59,1%), in the circumflex in 33 (37,35%), and in both in 3 (3,4%).
La arteria del nodo sinoatrial se originó de la coronaria derecha en 52 casos (59,1%), de la circunfleja en 33 corazones (37,35%) y de ambas en 3 (3,4%).scielo-abstract scielo-abstract