Influence of Acute Normobaric Hypoxia on Hemostasis in Volunteers with and without Acute Mountain Sickness
Joint Authors
Schaber, Marc
Leichtfried, Veronika
Fries, Dietmar
Wille, Maria
Gatterer, Hannes
Faulhaber, Martin
Würtinger, Philipp
Schobersberger, Wolfgang
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-09-15
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Introduction.
The aim of the present study was to investigate whether a 12-hour exposure in a normobaric hypoxic chamber would induce changes in the hemostatic system and a procoagulant state in volunteers suffering from acute mountain sickness (AMS) and healthy controls.
Materials and Methods.
37 healthy participants were passively exposed to 12.6% FiO2 (simulated altitude hypoxia of 4,500 m).
AMS development was investigated by the Lake Louise Score (LLS).
Prothrombin time, activated partial thromboplastin time, fibrinogen, and platelet count were measured and specific methods (i.e., thromboelastometry and a thrombin generation test) were used.
Results.
AMS prevalence was 62.2% (LLS cut off of 3).
For the whole group, paired sample t-tests showed significant increase in the maximal concentration of generated thrombin.
ROTEM measurements revealed a significant shortening of coagulation time and an increase of maximal clot firmness (InTEM test).
A significant increase in maximum clot firmness could be shown (FibTEM test).
Conclusions.
All significant changes in coagulation parameters after exposure remained within normal reference ranges.
No differences with regard to measured parameters of the hemostatic system between AMS-positive and -negative subjects were observed.
Therefore, the hypothesis of the acute activation of coagulation by hypoxia can be rejected.
American Psychological Association (APA)
Schaber, Marc& Leichtfried, Veronika& Fries, Dietmar& Wille, Maria& Gatterer, Hannes& Faulhaber, Martin…[et al.]. 2015. Influence of Acute Normobaric Hypoxia on Hemostasis in Volunteers with and without Acute Mountain Sickness. BioMed Research International،Vol. 2015, no. 2015, pp.1-9.
https://search.emarefa.net/detail/BIM-1056047
Modern Language Association (MLA)
Schaber, Marc…[et al.]. Influence of Acute Normobaric Hypoxia on Hemostasis in Volunteers with and without Acute Mountain Sickness. BioMed Research International No. 2015 (2015), pp.1-9.
https://search.emarefa.net/detail/BIM-1056047
American Medical Association (AMA)
Schaber, Marc& Leichtfried, Veronika& Fries, Dietmar& Wille, Maria& Gatterer, Hannes& Faulhaber, Martin…[et al.]. Influence of Acute Normobaric Hypoxia on Hemostasis in Volunteers with and without Acute Mountain Sickness. BioMed Research International. 2015. Vol. 2015, no. 2015, pp.1-9.
https://search.emarefa.net/detail/BIM-1056047
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1056047