Aberrant central nervous system responses to the Valsalva maneuver in heart failure.

@article{Woo2007AberrantCN,
  title={Aberrant central nervous system responses to the Valsalva maneuver in heart failure.},
  author={Mary A. Woo and Paul M Macey and Peter T Keens and Rajesh Kumar and Gregg C Fonarow and Michele A. Hamilton and Ronald M. Harper},
  journal={Congestive heart failure},
  year={2007},
  volume={13 1},
  pages={
          29-35
        }
}
Heart failure (HF) is associated with aberrant autonomic nervous system (ANS) activity, with altered responses to blood pressure and breathing challenges that appear to reflect abnormal central nervous system function. The authors used functional magnetic resonance imaging (fMRI) to determine whether the Valsalva maneuver, an ANS challenge, would show abnormal responses in ANS regulatory areas of the brain in HF. Brain fMRI signal changes in 5 HF patients (left ventricular ejection fraction, 0… CONTINUE READING
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