Models Versus Established Knowledge in Describing the Functional Morphology of the Ventricular Myocardium - 22/08/11
, Klaus Redmann, MD a, Peter Niederer, MD b, Peter Schmid, MD b, Morten Smerup, MD, PhD c, Jörg Stypmann, MD a, Sabine Däbritz, MD d, Kai Rothaus, MD a, Robert H. Anderson, MD e
Corresponding author. Experimental Thoraco-vascular Surgery, University of Münster, Domagkstr. 11, 48129 Münster, Germany.Abstract |
The myocytes comprising the ventricular mass are arranged so as to function in antagonistic fashion, the walls having the capacity to generate both constrictive and dilatory forces. This dualistic activity is organized on the basis of a site-specific morphologic pattern, permitting marked regional specificity for mural motion and providing a target for regional therapy. Diseased regions can be removed surgically without danger of jeopardizing the remaining healthy mural segments. The sensitivity of the intruding population of myocytes to positive and negative inotropic medication is markedly more pronounced than that of the prevailing tangentially aligned myocytes. This asymmetrical action of inotropes in the setting of global ventricular imbalance promotes the potential to restore constrictive as opposed to dilatory actions.
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| This work was supported by Deutsche Forschungsgemeinschaft, Ernst und Berta Grimmke Stiftung, Karl und Lore Klein Stiftung, BMBF, and the British Heart Foundation. |
Vol 4 - N° 3
P. 273-288 - juillet 2008 Retour au numéro
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