Abstract:
Introduction. Most patients have a right-dominant vascularization of the heart 85%, and
8% have left-dominant vascularization and 7% demonstrate variation of codominant. The
population with left-dominant circulation is at higher risk for arrhythmic complications
after common cardiac procedures.
Purpose of the work: Identification and analysis of the correlation between the type of
dominance of the coronary arteries: right, left or codominant and the frequency of atrial
fibrillation in these patients.
Materials and methods. The study was conducted on 96 patients: of which (61) 63.5%
researched by Holter ECG and coronary angiography, (23) 23.95% CT and CT angio, but also
(12) 12.5% cadavers (12 mature) in which we analyzed the heart and lung complex
(formalized) from the collection of the Department of Anatomy and Clinical Anatomy of the
"Nicolae Testemițanu" USMF.
Results. In the study, right coronary dominance was found in (68) 70.83% of cases, left in
(26) 24.96% of cases, and in (2) 2.08% of cases – codominant. The available data indicate
that in the general population, most people have right coronary dominance. Of the 61 cases
(coronary angiography – Holter ECG), (39) 63.9% – right dominance, (22) 36.1% – left
dominance. During 24-hour Holter monitoring ECG, atrial fibrillation was detected in (7)
11.4% patients with right coronary dominance, while in patients with left coronary
dominance it was detected in (9) 14.75%, patients.
Conclusion(s). Of the 61 cases, atrial fibrillation is more common in people with left
coronary dominance – (9) 14.75%, compared to those with right coronary dominance – (7)
11,4%.
