…and arrhythmology Critical care Definition and pathophysiology Atrial fibrillation (AF) is the most frequent supraventricular arrhythmia in patients with acute coronary syndromes (ACS) and is…

…developing atrial fibrillation is age. Other significant risk factors are as follows: male sex, hypertension, left ventricular hypertrophy, left ventricular dysfunction, valve disease, coronary artery…

…comparison of P wave morphology during tachycardia and sinus rhythm is typically required. The isoelectric baseline lacks the saw tooth pattern characteristic of atrial flutter…

…should always be completed (regardless of whether conversion to sinus rhythm occurs) unless contraindications occur. If hemodynamically stable atrial flutter occurs after the first dose…

…conductance shortens the atrial action potential duration (APD), hyperpolarizes the membrane potential, and decreases atrial contractility. Analogous electrophysiological changes occur within the sinus and atrioventricular…

…average. Its cardiovascular manifestations include atherosclerotic cardiovascular disease (ASCVD), coronary artery disease (CAD), myocardial infarction, stroke, heart failure (HF), atrial fibrillation (AF), aortic disease, and…

…This results in flow heterogeneity and perfusion defects in areas supplied by the disease artery. Thus, vasodilators replicate the effects of exercise on coronary arteries…

…sinus rhythm . Parts of the atrial myocardium : There are clusters of atrial myocardial cells located around the crista terminalis , the entrance of the coronary sinus…

…contraindication) . Irregular wide complex tachycardia is most often due to atrial fibrillation with wide QRS complexes due to bundle branch blocks or other conduction defects…

…congenital anomalies include anomalous origin of a coronary artery from the pulmonary artery and anomalous origin of one coronary artery from the opposite aortic sinus…