Key result
Rapidly induced anemia blunts chronotropic but not inotropic responses to isoproterenol in dogs.
Why the study?
The cardiac responsiveness to beta-adrenergic stimulation during rapidly induced experimental anemia was not well characterized.
Does rapid induction of anemia alter cardiac responsiveness to beta-adrenergic stimulation in anesthetized dogs?
Does rapid induction of anemia alter cardiac responsiveness to beta-adrenergic stimulation in anesthetized dogs?
In an experimental dog model, rapidly induced anemia reduces chronotropic but preserves inotropic responsiveness to beta-adrenergic stimulation.
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Anemia-induced chronotropic blunting in dogs should not guide human therapy; leaves open differential beta-adrenergic effects in clinical anemia.
Biro et al. (1976) studied Experimental anemia. Isoproterenol after rapid induction of anemia vs. Before induction of anemia was evaluated on Chronotropic and inotropic responses to isoproterenol. Rapidly induced experimental anemia in dogs significantly reduced chronotropic responses to isoproterenol, while inotropic responses remained the same as before anemia induction.
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