Sharman, JE and Moir, S and Kostner, KM and Haluska, B and Marwick, TH, Patients with coronary slow flow phenomenon demonstrate normal myocardial blood flow and arterial wave reflection between acute episodes, International Journal of Cardiology, 131, (3) pp. 321-325. ISSN 0167-5273 (2009) [Refereed Article]
Copyright 2009 Elsevier
Methods: Ten patients with angiographically proven CSF and 20 controls underwent dipyridamole-exercise stress myocardial contrast echocardiography and arterial waveform analysis. MBF was quantified off-line from 10 mid and apical segments with calculation of myocardial blood volume (A), red cell velocity (β) and their product, MBF, at rest and post-stress. MBF reserve was calculated as the ratio of peak stress to resting MBF. Central arterial pressure waveforms were derived by radial tonometry, with arterial wave reflection expressed by augmentation index. Arterial stiffness was determined by aortic and brachial pulse wave velocities.
Results: There was no significant difference between CSF and control groups in mean resting β (0.56 ± 0.24 versus 0.59 ± 0.26), A (7.9 ± 1.4 versus 7.9 ± 5.2), MBF (4.3 ± 1.8 versus 4.4 ± 3.6), MBF reserve (3.7 ± 2.0 versus 4.0 ± 2.0), augmentation index (26 ± 12 versus 23 ± 9%), aortic (7.4 ± 1.8 versus 7.4 ± 1.5 m/s) or brachial (8.0 ± 0.8 versus 8.1 ± 1.3) pulse wave velocity (p > 0.4 for all). Similarly, there were no significant haemodynamic differences between groups after exercise (p > 0.2 for all).
Conclusions: MBF, large artery stiffness and arterial wave reflection characteristics are normal in CSF patients between their acute episodes.
|Item Type:||Refereed Article|
|Keywords:||coronary arteries, blood flow, myocardial perfusion, arteries|
|Research Division:||Biomedical and Clinical Sciences|
|Research Group:||Cardiovascular medicine and haematology|
|Research Field:||Cardiology (incl. cardiovascular diseases)|
|Objective Group:||Clinical health|
|Objective Field:||Clinical health not elsewhere classified|
|UTAS Author:||Sharman, JE (Professor James Sharman)|
|UTAS Author:||Marwick, TH (Professor Tom Marwick)|
|Web of Science® Times Cited:||6|
|Deposited By:||Menzies Institute for Medical Research|
|Downloads:||1 View Download Statistics|
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