Left atrial dysfunction can independently predict exercise capacity in patients with chronic heart failure who use beta-blockers

Abstract

Key points A significant linear correlation exists between resting LA strain and exercise capacity in CHF patients receiving beta-blocker therapy. LA reservoir strain is the strongest independent predictor of decreased exercise capacity among all LA strain parameters. LA booster strain is also an independent predictor of decreased exercise capacity.

Keywords

• Left atrial strain
• Chronic heart failure
• Exercise capacity
• Maximal oxygen uptake
• Beta-blockers