Exercise-disordered breathing in patients with chronic heart failure contributes to exercise limitations and is associated with a worsening prognosis.
Ventilatory abnormalities in chronic heart failure contribute to exercise limitations and indicate a worse prognosis.
Patients with heart failure develop various ventilatory abnormalities, including reduced ventilatory reserves, increased ventilatory demands, and high work and cost of breathing. They tend to breathe with a rapid-shallow pattern, have low end-expiratory lung volumes, and may develop rhythmic oscillations in ventilation and tidal volume. These abnormalities likely contribute to exercise limitations and are associated with a worsening prognosis.
Olson et al. (Sun,) conducted a review in Chronic Heart Failure. Exercise-disordered breathing was evaluated. Exercise-disordered breathing in patients with chronic heart failure contributes to exercise limitations and is associated with a worsening prognosis.
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