There have been reports suggesting that long-duration space flight might lead to an increased risk of potentially serious heart rhythm disturbances.If space flight does, in fact, significantly decrease cardiac electrical stability, the effects could be catastrophic, potentially leading to sudden cardiac death. It will be important to determine the mechanisms underlying this phenomenon in order to prepare for long-term manned lunar and interplanetary missions and to develop appropriate countermeasures.We are studying indices of electrical instability in the heart for long term space missions by non-invasively measuring microvolt level T-wave alternans in a reduced gravity environment. In this investigation we are using volunteer subjects on the KC-135 aircraft as an initial study of the effect of electrical adaptation of the heart to microgravity. T-wave alternans will be analyzed for heart rate variability and QT restitution curve plotting will be compared for statistical significance.


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    Title :

    Detection and Prevention of Cardiac Arrhythmias During Space Flight


    Contributors:
    D. Pillai (author) / D. S. Rosenbaum (author) / K. J. Liszka (author) / D. W. York (author) / M. A. Mackin (author)

    Publication date :

    2004


    Size :

    2 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




    Detection and Prevention of Cardiac Arrhythmias During Space Flight

    Pillai, Dilip / Rosenbaum, David S. / Liszka, Kathy J. et al. | NTRS | 2004


    Detection and Prevention of Cardiac Arrhythmias During Space Flight

    Pillai, Dilip / Rosenbaum, David S. / Liszka, Kathy J. et al. | NTRS | 2004


    Detection and Prevention of Arrhythmias during Space Flight

    D. Pillai / D. Rosenbaum / K. Liszkat et al. | NTIS | 2004


    Detection and Prevention of Arrhythmias During Space Flight

    Pillai, Dilip / Rosenbaum, David / Liszka, Kathy et al. | NTRS | 2004


    Cardiac arrhythmias in space

    Leguay, G. / Seigneuric, A. | Elsevier | 1980