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Exercise-Disordered Breathing in Chronic Heart Failure

2006; Lippincott Williams & Wilkins; Volume: 34; Issue: 4 Linguagem: Inglês

10.1249/01.jes.0000240022.30373.a2

1538-3008

Thomas P. Olson, Eric M. Snyder, Bruce D. Johnson,

Cardiovascular Effects of Exercise

In Brief 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. Heart failure patients develop various breathing abnormalities that may contribute to exercise intolerance and may be associated with poor prognosis.