Related Experiment Video
Updated: Jul 18, 2026

Estimating Bilateral Atrial Function by Cardiovascular Magnetic Resonance Feature Tracking in Patients with Paroxysmal Atrial Fibrillation
Published on: July 20, 2022
Comparative analysis of direction, value, and duration atrial pressure of shifts caused by depressor agents
B I Tkachenko1, V I Evlakhov, I Z Poyasov
1Department of Visceral System Physiology, Institute of Experimental Medicine, Russian Academy of Medical Sciences, St. Petersburg.
Abstract:
Shifts in right- and left-atrial pressure after administration of acetylcholine, histamine, or isoproterenol to cats were oppositely directed in 69% cases; both parameters decreased in 11% cases (changes were more pronounced in the right atrium) and increased in 20% cases (similar shifts). Changes in the left-atrial pressure persisted for a longer time (compared to those in the right atrium) and their dynamics was similar to that of venous return and cardiac output.
Related Concept Videos
Measurement of Blood Pressure
ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias
Dysrhythmias IV: Characteristics of Bradyarrhythmias
