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      Increase in Left Ventricular Ejection Rate during Recovery from Exercise in Patients with Myocardial Infarction

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          Abstract

          Changes in left ventricular (LV) ejection rate were evaluated during supine bicycle exercise and recovery in 12 patients with anterior myocardial infarction. Pulmonary artery wedge pressure (34 ± 9 to 14 ± 5 mm Hg) and plasma norepinephrine level decreased at 2 min recovery from peak exercise, whereas plasma lactate tended to increase. As a result, LV ejection rate reached the highest value at 2 min of recovery. Thus, both cardiac (optimal filling pressure) and peripheral factors (reduced vascular resistance) caused the increase in LV ejection rate at early recovery.

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          Author and article information

          Journal
          CRD
          Cardiology
          10.1159/issn.0008-6312
          Cardiology
          S. Karger AG
          0008-6312
          1421-9751
          1993
          1993
          14 November 2008
          : 82
          : 4
          : 259-264
          Affiliations
          The Cardiovascular Center, Kansai Medical University, Moriguchi City, Osaka, Japan
          Article
          175873 Cardiology 1993;82:259–264
          10.1159/000175873
          8402752
          © 1993 S. Karger AG, Basel

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          Page count
          Pages: 6
          Categories
          Coronary Care

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