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Patients with early diabetic heart disease demonstrate a normal myocardial response to dobutamine

^* University of Queensland, Brisbane, Australia

View larger version (73K): [in a new window]   Figure 1 Measurement of myocardial peak systolic velocity (Sm) and myocardial peak early diastolic velocity (Em) at rest (left; heart rate 69 beats/min) and at peak (right; heart rate 128 beats/min) in a 69-year-old diabetic patient. The Sm at the basal part of the lateral wall at rest and peak were 5.8 and 12.4 cm/s, respectively. The Em at the basal part of the lateral wall at rest and peak were 3.8 and 8.5 cm/s, respectively.

View larger version (23K): [in a new window]   Figure 2 The tissue Doppler imaging-derived myocardial peak systolic velocity (Sm) (A) and myocardial peak early diastolic velocity (Em) (B) values from rest to peak dobutamine stress in diabetic patients (DM) and control subjects.