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The role of intramyocardial pressure during coronary sinus interventions: a computer model study

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3 Author(s)
Schreiner, W. ; Second Dept. of Surg., Vienna Univ., Austria ; Neumann, F. ; Mohl, W.

A model consisting of an arterial, a capillary, and a venous compartment was developed to reproduce experimentally determined hemodynamic results of the arterial and venous sides of coronary circulation. From the model, intramyocardial flow between capillaries and veins, which is inaccessible to measurement, was estimated. Results are given for normal perfusion and coronary sinus occlusion conditions. For both conditions, intramyocardial pressure was varied within the model in order to study its impact on intramyocardial flow. For low and moderate intramyocardial pressures under coronary sinus occlusion, retrograde flow from veins to capillaries increases with increasing intramyocardial pressure. However, for very high values of intramyocardial pressure, which are close to left ventricular pressure, retrograde flow declined.<>

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Biomedical Engineering, IEEE Transactions on  (Volume:37 ,  Issue: 10 )