Onset of sweating depends on the type of reflex syncope

Walter Struhal; Antonija Mišmaš; Matthias Kirchmayr; Sigrid Bartl; Andrija Javor; Milan R Vosko; Gerhard Ransmayr

doi:10.1016/j.autneu.2014.06.002

Onset of sweating depends on the type of reflex syncope

Auton Neurosci. 2014 Sep:184:73-6. doi: 10.1016/j.autneu.2014.06.002. Epub 2014 Jun 14.

Authors

Walter Struhal¹, Antonija Mišmaš², Matthias Kirchmayr³, Sigrid Bartl⁴, Andrija Javor⁵, Milan R Vosko⁶, Gerhard Ransmayr⁷

Affiliations

¹ Autonomic Unit, Department for Neurology and Psychiatry, General Hospital of the City of Linz, Krankenhausstr. 9, A-4020 Linz, Austria. Electronic address: [email protected].
² Autonomic Unit, Department for Neurology and Psychiatry, General Hospital of the City of Linz, Krankenhausstr. 9, A-4020 Linz, Austria. Electronic address: [email protected].
³ Autonomic Unit, Department for Neurology and Psychiatry, General Hospital of the City of Linz, Krankenhausstr. 9, A-4020 Linz, Austria. Electronic address: [email protected].
⁴ Autonomic Unit, Department for Neurology and Psychiatry, General Hospital of the City of Linz, Krankenhausstr. 9, A-4020 Linz, Austria. Electronic address: [email protected].
⁵ Autonomic Unit, Department for Neurology and Psychiatry, General Hospital of the City of Linz, Krankenhausstr. 9, A-4020 Linz, Austria. Electronic address: [email protected].
⁶ Autonomic Unit, Department for Neurology and Psychiatry, General Hospital of the City of Linz, Krankenhausstr. 9, A-4020 Linz, Austria. Electronic address: [email protected].
⁷ Autonomic Unit, Department for Neurology and Psychiatry, General Hospital of the City of Linz, Krankenhausstr. 9, A-4020 Linz, Austria. Electronic address: [email protected].

PMID: 25009131
DOI: 10.1016/j.autneu.2014.06.002

Abstract

Reflex syncope is classified based on the efferent autonomic system as vasodepressant type, cardioinhibitory type and mixed type. We employed quantitative sweat testing to assess differences in sudomotor sympathetic activity in relation to the type of reflex syncope. In cardioinhibitory type sweating started in 7/9 patients after and in vasodepressor type in 11/12 patients before syncope. In mixed type sweating in 20 patients started before and in 10 after syncope. The onset of sweating correlated significantly with the onset of syncope symptoms. These results possibly reflect different onsets of emotional sweating.

Keywords: Prodromal sign; Reflex syncope; Sudomotor; Sweating; Sympathetic nervous system.

MeSH terms

Adult
Female
Humans
Male
Middle Aged
Prodromal Symptoms
Reflex / physiology*
Retrospective Studies
Sweating / physiology*
Syncope / classification*
Syncope / physiopathology*