Coronary circulation in the failing heart.

  title={Coronary circulation in the failing heart.},
  author={Yukio Maruyama and Toshihiko Saito and Kazuhira Maehara},
  journal={Japanese heart journal},
  volume={38 6},
In congestive heart failure, vascular resistance increases because of vasoconstriction caused by activation of the neurohumoral system. On the other hand, vasodilatory responses can partially compensate for vasoconstriction by increasing vasodilatory substances. Although vasoconstrictive forces predominate as a whole, there is heterogeneity in the responses of different vascular beds to vasoactive agents. Especially, as for coronary circulation in the setting of heart failure, many factors may… CONTINUE READING

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