Arrhythmic Manifestations of Cardiac Amyloidosis: Challenges in Risk Stratification and Clinical Management

Area of Science:

• Cardiology
• Pathology

Background:

• Amyloidosis is a systemic disease involving extracellular amyloid deposits.
• Cardiac amyloidosis leads to restrictive cardiomyopathy, adverse outcomes, and increased mortality.
• Heart failure with preserved ejection fraction is the typical presentation.

Purpose of the Study:

• To provide insight into arrhythmic features of cardiac amyloidosis.
• To discuss the pathogenesis of arrhythmias in this condition.
• To address challenges in risk stratification and management strategies.

Main Methods:

• This review synthesizes current knowledge on cardiac amyloidosis and arrhythmias.
• It examines the underlying mechanisms of arrhythmia development.
• It evaluates current management and risk stratification approaches.

Main Results:

• Cardiac amyloidosis commonly presents with heart failure symptoms and various arrhythmias.
• Arrhythmias like atrioventricular nodal block, atrial fibrillation, and ventricular tachyarrhythmias are frequent.
• Management of arrhythmias in these patients is clinically challenging.

Conclusions:

• Cardiac amyloidosis significantly impacts cardiac function and increases mortality risk.
• Arrhythmias are a major complication, posing management difficulties.
• Further research is needed to define predictors and optimize treatment strategies.