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Figure 5 A Representative Case of Group IIa
This patient was a 58-year-old woman in New York Heart Association functional class II, and she had an LVEF of 42% and a plasma norepinephrine level of 1,200 pg/ml. (A) Increased lung uptake and severely reduced myocardial uptake are observed, and the delayed H/M ratio was 1.3. (B) The relationship between dobutamine infusion rate and LV dP/dtmax of this patient is shown. The LV dP/dtmax at baseline and at a dobutamine infusion rate of 10 µg kg–1 min–1 were 1,089 and 1,791 mm Hg/s, respectively ( LV dP/dtmax = 64%). Abbreviations as in Figures 1 and 3.
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