Pathophysiology of the Aging Heart and Its Impact on Interventions


Cardiac changes

Vascular changes

Heart weight


Arterial wall thickness (intima-media)


Cardiomyocyte dimensions


Subendothelial collagen


Cardiomyocyte number


Elastin


Collagen in cross-linking


Elastin fragmentation


Ejection fraction

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Proteoglycans


Stroke volume

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MMP activity


Cardiac output

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Intimai migration/proliferation of VSMC


Early diastolic filling


Arterial distensibility


End-diastolic filling


Pulse wave velocity


Chronotropic responsiveness to β-adrenergic stimuli/catecholamines


Total peripheral resistance


Inotropic responsiveness to β-adrenergic stimuli/catecholamines


Endothelial permeability


Inotropic response to digitalis glycosides


Endothelial nitric oxide release


Peak cardiac output to maximal effort


Inflammatory markers/mediators


Lusitropic function

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Apr 2, 2016 | Posted by in INTERVENTIONAL RADIOLOGY | Comments Off on Pathophysiology of the Aging Heart and Its Impact on Interventions

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