Evaluating cardiac physiology through echocardiography in bottlenose dolphins: using stroke volume and cardiac output to estimate systolic left ventricular function during rest and following exercise.

@article{Miedler2015EvaluatingCP,
  title={Evaluating cardiac physiology through echocardiography in bottlenose dolphins: using stroke volume and cardiac output to estimate systolic left ventricular function during rest and following exercise.},
  author={Stefan Miedler and Andreas Fahlman and M{\'o}nica Valls Torres and Teresa {\'A}lvaro {\'A}lvarez and Daniel Garc{\'i}a-P{\'a}rraga},
  journal={The Journal of experimental biology},
  year={2015},
  volume={218 Pt 22},
  pages={
          3604-10
        }
}
Heart-rate (fH) changes during diving and exercise are well documented for marine mammals, but changes in stroke volume (SV) and cardiac output (CO) are much less known. We hypothesized that both SV and CO are also modified following intense exercise. Using transthoracic ultrasound Doppler at the level of the aortic valve, we compared blood flow velocities in the left ventricle and cardiac frequencies during rest and at 1, 3 and 4 min after a bout of exercise in 13 adult bottlenose dolphins… CONTINUE READING
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