Coronary Flow in Patients with Three-Vessel Disease: Simulated Hemodynamic Variables in relation to Angiographically Assessed Collaterality and History of Myocardial Infarction.Report as inadecuate




Coronary Flow in Patients with Three-Vessel Disease: Simulated Hemodynamic Variables in relation to Angiographically Assessed Collaterality and History of Myocardial Infarction. - Download this document for free, or read online. Document in PDF available to download.

* Corresponding author 1 Service de chirurgie thoracique cardiaque et vasculaire Rennes 2 LTSI - Laboratoire Traitement du Signal et de l-Image 3 LTSI - Laboratoire Traitement du Signal et de l-Image 4 Biomécanique et Bioingéniérie 5 Department of Biomedical Engineering

Abstract : We study patients with stenoses of the left main coronary artery LMCA, left anterior descending artery LAD, and left circumflex branch LCx and with chronic occlusion of the right coronary artery RCA, undergoing off-pump coronary surgery. An analog electrical model is used to provide quantitative estimations of the distribution of flows and pressures across the coronary network in the stenosed native arteries, the collateral branches, the capillary areas, and so forth. The present paper demonstrates that the clinical information collected for the 10 patients included in the study Rentrop score, history of myocardial infarction, left ventricular ejection fraction LVEF are well correlated with the predicted hydrodynamic data. Patients with a good collaterality Rentrop score = 3 or patients without anterior myocardial infarction have i less severe stenoses on the LMCA, ii lower microvascular resistances, iii higher grafts flow rates when the revascularization is performed, iv higher collateral flow rates towards the territory of the occluded artery, v better perfusion of this area, and vi better total perfusion of the heart.





Author: Issam Abouliatim - Majid Harmouche - Agnès Drochon - Mahmoud Maasrani - Hervé Corbineau - Jean-Philippe Verhoye -

Source: https://hal.archives-ouvertes.fr/



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