Athlete's Heart: Diagnostic Challenges and Future Perspectives.

Area of Science:

• Sports Cardiology
• Cardiovascular Physiology
• Exercise Science

Background:

• Distinguishing adaptive athletic heart remodeling from pathological cardiomyopathies is challenging due to overlapping phenotypes.
• Unnecessary career termination and risk of sudden cardiac death necessitate accurate differentiation.
• Physiological adaptations and pathological conditions share similar cardiovascular manifestations.

Purpose of the Study:

• To review current diagnostic strategies for differentiating adaptive versus maladaptive cardiovascular responses to exercise.
• To explore novel approaches for identifying early pathological conditions in athletes.
• To guide clinical decision-making in sports cardiology for athlete risk stratification.

Main Methods:

• Review of diagnostic schemes and screening strategies in sports cardiology.
• Analysis of stress testing modalities including electrocardiography, echocardiography, and cardiopulmonary exercise testing.
• Evaluation of advanced imaging techniques like cardiovascular magnetic resonance for myocardial tissue characterization.

Main Results:

• Stress testing effectively unmasks subtle pathological cardiovascular responses not evident at rest.
• Electrocardiographic abnormalities and arrhythmias in athletes warrant further investigation.
• Stress imaging and myocardial characterization show promise in complex cases of ventricular hypertrophy or dysfunction.

Conclusions:

• Accurate differentiation between adaptive and maladaptive cardiovascular changes is critical for athlete management.
• Current diagnostic tools, including stress testing and advanced imaging, aid in risk stratification.
• Continued research into novel approaches is needed to refine the diagnosis of exercise-induced cardiovascular conditions.