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  • Title: Parasympathetic-mediated atrial fibrillation during tilt test associated with increased baroreflex sensitivity.
    Author: de Castro RR, Mesquita ET, da Nobrega AC.
    Journal: Europace; 2006 May; 8(5):349-51. PubMed ID: 16635994.
    Abstract:
    The autonomic mechanism that triggered atrial fibrillation in a patient during tilt test was investigated. Neurocardiogenic syncope is often characterized by diminished baroreflex sensitivity during the hypotension period. Increased barorereflex sensitivity preceding the onset of atrial fibrillation in tilt testing may indicate the involvement of a vagally mediated mechanism, as shown in the present case.
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