NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Short-Duration Spaceflight Does Not Prolong QTc Intervals in Male AstronautsAlthough ventricular dysrhythmias are not increased during, and QTc intervals are not prolonged after, short-duration (5 to 16 days) spaceflights, QTc intervals have not previously been reported during these shorter flights. Holter monitor recordings, obtained in 11 male astronauts who flew on shuttle missions ranging from 5 to 10 days, showed that QTc intervals did not change significantly 10 days before launch, on 2 separate days of spaceflight, and 2 days after landing. Taken together, these data and our previous report show that QTc interval prolongation occurs sometime between the 9th and 30th days of spaceflight.
Document ID
20040091040
Acquisition Source
Johnson Space Center
Document Type
Reprint (Version printed in journal)
Authors
Mitchell, Brett M.
(Universities Space Research Association Houston, TX, United States)
Meck, Janice V.
(NASA Johnson Space Center Houston, TX, United States)
Date Acquired
August 21, 2013
Publication Date
April 15, 2004
Publication Information
Publication: The American journal of cardiology
Volume: 93
Issue: 8
ISSN: 0002-9149
Subject Category
Life Sciences (General)
Report/Patent Number
JSC-CN-8300
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available