Review Note

Last Update: 10/21/2024 09:21 AM

Current Deck: BUMed Mother Deck::YL2.S1-PATHOLOGY::PTH.S1.L02.The Heart::03.Heart Failure

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Heart Failure


Cardiac Hypertrophy
{{c1::Pressure}} Overload
● New sarcomeres are predominantly assembled in {{c2::parallel::perpendicular or parallel}} to the long axes of cells → concentric increase in wall thickness


{{c1::Volume}} Overload
● New sarcomeres assembled in series within existing sarcomeres → ventricular dilation → wall thickness may be increased, normal, or less than normal
● Heart weight {{c2::more::less or more}} than wall thickness
 
● Associated with {{c2::increased::increased or decreased}} oxygen consumption
→ Vulnerable to ischemia-related decompensation
Extra
There is increased oxygen consumption since the enlarged heart needs more energy and oxygen to pump the increased blood volume→increased oxygen demand makes the heart more susceptible to ischemia
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