Spaceflight and the telltale heart.

  title={Spaceflight and the telltale heart.},
  author={Lawrence F. Dietlein},
  journal={American journal of surgery},
  volume={145 6},
Cardiac arrhythmias have not been a common occurrence during manned spaceflights. Cardiovascular deconditioning, on the other hand, is a universal finding both during and after exposure to microgravity. Exercise capability is reduced only in the immediate postflight period as is cardiac output. These adaptive changes do not impair crew health or their… CONTINUE READING