The influence of heart rate on the Doppler-derived myocardial performance index.

@article{Poulsen2000TheIO,
  title={The influence of heart rate on the Doppler-derived myocardial performance index.},
  author={Steen Hvitfeldt Poulsen and Jens Cosedis Nielsen and Henning Rud Andersen},
  journal={Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography},
  year={2000},
  volume={13 5},
  pages={
          379-84
        }
}
The Doppler-derived myocardial performance index (MPI), defined as the sum of isovolumetric contraction and relaxation durations divided by ejection time and reflecting both systolic and diastolic myocardial function, has been found to be related to morbidity and mortality in cardiac diseases. The MPI is easily obtained, reproducible, and has a narrow range in healthy subjects. The goal of this study was to study the influence of heart rate changes on the MPI. Thirty patients with sick sinus… CONTINUE READING
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