Vasovagal syncope (VVS) is a clinical condition related to bradycardia (cardioinhibitory response) and/or hypotension (vasodepressor response), likely mediated by parasympathetic activation and sympathetic inhibition. Although clinical presentation is usually associated with a situational, isolated and/or self-limited event, in some cases, VVS might be recurrent, unpredictable and debilitating. There is still no specific medical therapy has been proven widely effective. For a long time, evidence of severe cardioinhibition on the tilt table test (TTT) in association with VVS has been used to offer permanent pacing to combat bradycardia/asystole.
Credits: Tolga Aksu, K?vancYalin