• Medicine
  • Published in
    Revista brasileira de…
    1978

[Characteristics of the isometric myocardial contractions during its activation by the slow response (author's transl)].

@article{Vassallo1978CharacteristicsOT,
  title={[Characteristics of the isometric myocardial contractions during its activation by the slow response (author's transl)].},
  author={Dalton Valentim Vassallo and Jos{\'e} Geraldo Mill},
  journal={Revista brasileira de pesquisas medicas e biologicas},
  year={1978},
  volume={11 1},
  pages={
          25-33
        }
}
The characteristics of the isometric contractions of rabbit's left atria were studied during its activation by the slow response of the cardiac action potential. When compared to the conditions where activation occurs with normal action potentials it verifies that contraction amplitude decreases, becoming slowly and larger. Positive inotropic effects that enhance calcium entrance through the membrane (Ca and IPA), during action potential, increase contraction amplitude. Negative inotropic… CONTINUE READING

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