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(Chest. 1996;110:841-844.)
© 1996 American College of Chest Physicians

Transient Fall in Oxygen Intake During Exercise in Congestive Heart Failure

Alain Cohen-Solal MD1; Jean François Aupetit MD2; Eric Page MD3; Michel Geneves MD1; and René Gourgon MD1

1 From the Service de Cardiologie, Hôpital Beaujon, Cedex, France
2 From the Service de Cardiologie, Hôpital Saint Joseph, Lyon, France
3 From the Service de Cardiologie, and Clinique du Mail, Grenoble, France

We report four cases in which oxygen intake abruptly decreased during a graded exercise test. In all these cases, there was an acute event (arrhythmia, mitral regurgitation) that had very likely resulted in a decrease in cardiac output. These studies provide new evidence of oxygen intake dependence on oxygen transport, even in nonsteady-state situations.

Submitted on July 7, 1995
Accepted on January 26, 1996




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