Cardiomegaly pathophysiology: Difference between revisions
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__NOTOC__ | __NOTOC__ | ||
{{Template:Cardiomegaly}} | {{Template:Cardiomegaly}} | ||
{{CMG}}; | {{CMG}}; {{AE}} {{CZ}} | ||
==Pathophysiology== | ==Pathophysiology== | ||
The [[left ventricle]] can be enlarged from two broad underlying conditions: dilation and hypertrophy. | The [[left ventricle]] can be enlarged from two broad underlying conditions: dilation and hypertrophy. | ||
*Left ventricular dilation can occurs as a result of volume overload. Conditions that cause volume overload can be further broken down as follows: | |||
**Valvular Disease: More common underlying [[valvular heart disease]] conditions would include [[mitral regurgitation]] and [[aortic regurgitation]]. | |||
**Congenital Heart Disease: [[Patent ductus arteriosus]] and a [[ventricular septal defect]]. | |||
**High output states resulting in volume overload: [[anemia]] and [[thyrotoxicosis]]. | |||
**High stroke volume states: [[Complete heart block]] and prolonged severe [[sinus bradycardia]]. | |||
**Can occur as a result of [[ischemia]] and remodeling. | |||
==Pathology== | |||
===Gross Pathology=== | |||
=== | |||
[http://www.peir.net Image courtesy of Professor Peter Anderson DVM PhD and published with permission © PEIR, University of Alabama at Birmingham, Department of Pathology] | [http://www.peir.net Image courtesy of Professor Peter Anderson DVM PhD and published with permission © PEIR, University of Alabama at Birmingham, Department of Pathology] | ||
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[[Image:Right ventricular hypertrophy 1.jpg|left|300px|thumb|Right ventricular hypertrophy]] | [[Image:Right ventricular hypertrophy 1.jpg|left|300px|thumb|Right ventricular hypertrophy]] | ||
<br clear="left"/> | <br clear="left"/> | ||
[[Image: RVE Hyalin membran disease.jpg|left|300px|thumb|Right ventricular enlargement due to a [[patent ductus arteriosus]] in a patient with hyaline membrane disease]] | [[Image: RVE Hyalin membran disease.jpg|left|300px|thumb|Right ventricular enlargement due to a [[patent ductus arteriosus]] in a patient with hyaline membrane disease]] |
Revision as of 15:34, 3 January 2013
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Cafer Zorkun, M.D., Ph.D. [2]
Pathophysiology
The left ventricle can be enlarged from two broad underlying conditions: dilation and hypertrophy.
- Left ventricular dilation can occurs as a result of volume overload. Conditions that cause volume overload can be further broken down as follows:
- Valvular Disease: More common underlying valvular heart disease conditions would include mitral regurgitation and aortic regurgitation.
- Congenital Heart Disease: Patent ductus arteriosus and a ventricular septal defect.
- High output states resulting in volume overload: anemia and thyrotoxicosis.
- High stroke volume states: Complete heart block and prolonged severe sinus bradycardia.
- Can occur as a result of ischemia and remodeling.
Pathology
Gross Pathology