Cardiomyopathies Cardiomyopathies • Heart disease resulting from a primary abnormality in myocardium • most causes are idiopathic a) most likely genetic defects • Types: a) Dilated i) “congestive” ii) most common (~90%) b) Hypertrophic c) Restrictive (lease common) www.freelivedoctor.com www.freelivedoctor.com
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
CardiomyopathiesCardiomyopathies
• Heart disease resulting from a primary abnormality in myocardium• most causes are idiopathic
h) one of most common causes of death in young athletes !!
www.freelivedoctor.comwww.freelivedoctor.com
DIASTOLE SYSTOLE
An illustration of the obstructive form of HCM during relaxation (diastole, left) and during active contraction (systole, right). The thickened septum and the mitral valve leaflets come in close proximity, effectively narrowing the pathway that blood must travel to get out of the heart. Additionally, the forces on the mitral valve can lead to variable degrees of backward leakage (regurgitation) that can also lead to symptoms.www.freelivedoctor.comwww.freelivedoctor.com
3.- Restrictive CardiomyopathyRestrictive Cardiomyopathy Impairs diastolic function
a) primary in compliance- impaired diastolic filling
• least common of the CM• Ventricles approximately normal size•Systolic function unaffected•Biatrial dilation commonly seen•Myocardial fibrosis
a) radiationb) amyloidosisc) sarcoidosis
www.freelivedoctor.comwww.freelivedoctor.com
d) metastatic carcinomae) sarcoid granulomasf) any factor which increases