Abstract
During LVAD and IABP, the coronary flow (CF) of proximal left anterior descending coronary artery of 41-year woman was measured with TE-2DD after left atrial myxomectmy. All beats were classified into 4 groups according to the on-off mode of LVAD and IABP: Beatl (LVAD on IABP on), Beatll (LVAD on IABP off), Beatlll (LVAD off IABP on), and BeatlV (LVAD off IABP off). The average peak velocities in diastole were 64.6±4.3cm/sec in BeatI, 48.8±1.7cm/sec in BeatII, 40.4±8.0cm/sec in BeatIII, and 29.2±3.8cm/sec in BeatIV. The peak velocities were in direct proportion to mean aortic diastolic pressure and EVR. Combination of LVAD and IABP effectively recovered the damaged myocardium with increased CF by raising the diastolic pressure and EVR.
