Why the study?
What are the electrocardiographic characteristics of atrioventricular block induced by tilt testing in patients with presumed vasovagal syncope?
What are the electrocardiographic characteristics of atrioventricular block induced by tilt testing in patients with presumed vasovagal syncope?
AV block during tilt-induced neurocardiogenic reflex is typically preceded by sinus slowing and PR prolongation, occurring mostly at test termination but sometimes during recovery.
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Recognize AV block patterns at tilt termination to avoid misdiagnosis; leaves open prospective validation of specificity in vasovagal syncope.
Zyśko et al. (2008) studied this question.
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