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Clinical Autonomic Research
Published in: Clinical Autonomic Research 6/2010

01-12-2010 | Short Communication

Glossopharyngeal insufflation induces cardioinhibitory syncope in apnea divers

Authors: Gordan Dzamonja, Jens Tank, Karsten Heusser, Ivan Palada, Zoran Valic, Darija Bakovic, Ante Obad, Vladimir Ivancev, Toni Breskovic, André Diedrich, Friedrich C. Luft, Zeljko Dujic, Jens Jordan

Published in: Clinical Autonomic Research | Issue 6/2010

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Abstract

Apnea divers increase intrathoracic pressure voluntarily by taking a deep breath followed by glossopharyngeal insufflation. Because apnea divers sometimes experience hypotension and syncope during the maneuver, they may serve as a model to study the mechanisms of syncope. We recorded changes in hemodynamics and sympathetic vasomotor tone with microneurography during breath holding with glossopharyngeal insufflation. Five men became hypotensive and fainted during breath holding with glossopharyngeal insufflation within the first minute. In four divers, heart rate dropped suddenly to a minimum of 38 ± 4 beats/min. Therefore, cardioinhibitory syncope was more common than low cardiac output syncope.
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Heusser K, Dzamonja G, Tank J, Palada I, Valic Z, Bakovic D, Obad A, Ivancev V, Breskovic T, Diedrich A, Joyner MJ, Luft FC, Jordan J, Dujic Z (2009) Cardiovascular regulation during apnea in elite divers. Hypertension 53(4):719–724CrossRefPubMed
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Metadata
Title
Glossopharyngeal insufflation induces cardioinhibitory syncope in apnea divers
Authors
Gordan Dzamonja
Jens Tank
Karsten Heusser
Ivan Palada
Zoran Valic
Darija Bakovic
Ante Obad
Vladimir Ivancev
Toni Breskovic
André Diedrich
Friedrich C. Luft
Zeljko Dujic
Jens Jordan
Publication date
01-12-2010
Publisher
Springer-Verlag
Published in
Clinical Autonomic Research / Issue 6/2010
Print ISSN: 0959-9851
Electronic ISSN: 1619-1560
DOI
https://doi.org/10.1007/s10286-010-0075-5

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