Overview
Clinical Meaning
Dilated cardiomyopathy (DCM) features eccentric ventricular remodeling with chamber dilation and reduced systolic function (EF <40%).
FNP
FNP
Dilated cardiomyopathy (DCM) features eccentric ventricular remodeling with chamber dilation and reduced systolic function (EF <40%). Myocyte loss and interstitial fibrosis reduce contractile force. Causes include ischemia (most common), viral myocarditis, alcohol, peripartum, and genetic mutations (titin, lamin A/C). Hypertrophic cardiomyopathy (HCM) involves asymmetric septal hypertrophy from sarcomeric protein mutations (beta-myosin heavy chain, myosin-binding protein C), causing LV outflow tract obstruction (LVOTO) worsened by decreased preload/afterload or increased contractility. Restrictive cardiomyopathy (RCM) results from infiltration (amyloidosis, sarcoidosis, hemochromatosis) or fibrosis causing stiff, non-compliant ventricles with preserved EF but severe diastolic dysfunction. Each type has distinct hemodynamic profiles guiding management.
Unlock full lesson + practice questions
4 more sections with scenarios, priorities, and review drills.
Final rapid review before practice
Next study step
Finish the lesson first, then choose a focused activity to apply what you just reviewed.
Continue studying
Sign in to save progress on this lesson.
Unlock the interactive lesson quiz with a plan that includes this FNP pathway. You can still explore topic-filtered questions from the bank hubs below.