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[Ergometric test in the diagnostic and prognostic evaluation of arrhythmia]
1Istituto Medico-Chirurgico di Cardiologia, Università di Napoli, Federico II.
Insights
Analyzing 1,300 stress tests, this study found stress-induced arrhythmias are more common in heart disease patients. Some arrhythmias in teens without heart issues resolved during stress, indicating benignity.
Area of Science:
- Cardiology
- Electrophysiology
- Internal Medicine
Background:
- Arrhythmias can manifest at rest or during physical stress.
- Understanding the relationship between resting arrhythmias, clinical data, and stress-induced arrhythmias is crucial for patient management.
Purpose of the Study:
- To analyze the occurrence and characteristics of arrhythmias during stress tests.
- To investigate the relationship between resting arrhythmias, patient history, and clinical data.
- To assess the prognostic significance of stress-induced arrhythmias.
Main Methods:
- Analysis of 1,300 patient stress tests.
- Classification of patients into two groups: no arrhythmias at rest (Group A) and arrhythmias at rest (Group B).
- Consideration of all classic nosographic arrhythmias.
Main Results:
- Supraventricular arrhythmias during stress occurred in 1.2% of normal subjects versus 81% of heart disease patients.
- Supraventricular tachycardia was induced in 6 patients.
- Ventricular arrhythmias during stress were found in 4.9% of patients.
- Two cases of sudden death were observed.
Conclusions:
- Stress testing is valuable for evaluating arrhythmias, especially in patients with known heart disease.
- Some arrhythmias observed at rest, particularly in younger patients without organic heart disease, may be benign and resolve with stress.
- The high incidence of stress-induced supraventricular arrhythmias in heart disease patients underscores the importance of stress testing in this population.
Abstract:
One thousand three hundred patient's stress tests were analyzed to value arrhythmia outline and its relationship with anamnesis and clinical data. The patients were divided into two groups: group A, with no arrhythmias at rest, and group B with arrhythmias at rest. All classic nosographic arrhythmias were considered. In some teenager patients with arrhythmias at rest and no organic cardiopathy, anomalies disappeared during stress, showing the benignity of the phenomenon. Supraventricular stress induced arrhythmias has 1.2% of incidence in normal subjects, but 81% in heart disease patients. Supraventricular tachycardia was induced in 6 patients. Ventricular stress induced arrhythmias are found in 4.9%. Two cases of sudden death occurred in our groups.