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Tests for the identification of reflex syncope mechanism
Michele Brignole1, Giulia Rivasi2, Artur Fedorowski3
1Department of Cardiology, S. Luca Hospital, IRCCS, Istituto Auxologico Italiano, Milan, Italy.
Expert Review of Medical Devices
|February 23, 2023
Summary
Understanding the cause of reflex syncope is key to effective treatment. Identifying whether it
Area of Science:
- Cardiology
- Neurology
Background:
- Reflex syncope treatment efficacy depends on the underlying mechanism, not etiology or presentation.
- Mechanisms are categorized as hypotensive or bradycardic phenotypes.
Purpose of the Study:
- To discuss diagnostic tests for identifying hypotensive and bradycardic phenotypes in reflex syncope.
- To emphasize the importance of mechanism-based treatment strategies for reflex syncope.
Main Methods:
- Diagnostic tests for hypotensive phenotype: active standing test, home/wearable BP monitoring, 24-h ABPM, tilt table test.
- Diagnostic tests for bradycardic phenotype: carotid sinus massage, tilt table test, prolonged ECG monitoring.
Main Results:
- Documentation of bradycardia/asystole does not exclude a hypotensive reflex, and vice versa.
- Comprehensive assessment of syncope mechanisms is crucial for personalized therapy.
Conclusions:
- Investigating reflex syncope mechanisms is mandatory for severe, recurrent cases.
- Personalized, mechanism-based therapy improves treatment outcomes for reflex syncope.
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