Atrial septal defect ostium primum anatomy: Difference between revisions
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{{Atrial septal defect}} | {{Atrial septal defect}} | ||
{{CMG}}; '''Associate Editor(s)-In-Chief:''' [[Priyamvada Singh|Priyamvada Singh, M.B.B.S.]] [mailto:psingh@perfuse.org]; {{CZ}}; '''Assistant Editor(s)-In-Chief:''' [[Kristin Feeney|Kristin Feeney, B.S.]] [mailto:kfeeney@perfuse.org] | {{CMG}}; '''Associate Editor(s)-In-Chief:''' [[Priyamvada Singh|Priyamvada Singh, M.B.B.S.]] [mailto:psingh@perfuse.org]; {{CZ}}; '''Assistant Editor(s)-In-Chief:''' [[Kristin Feeney|Kristin Feeney, B.S.]] [mailto:kfeeney@perfuse.org] | ||
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* These are usually large sized defects when compared to the secundum defects | * These are usually large sized defects when compared to the secundum defects | ||
* Endocardial cushion defects are the most common congenital heart defect that is associated with [[Down's syndrome]]. | * Endocardial cushion defects are the most common congenital heart defect that is associated with [[Down's syndrome]]. | ||
==References== | ==References== | ||
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Revision as of 20:45, 30 August 2012
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-In-Chief: Priyamvada Singh, M.B.B.S. [2]; Cafer Zorkun, M.D., Ph.D. [3]; Assistant Editor(s)-In-Chief: Kristin Feeney, B.S. [4]
For a full discussion on ostium primum defects click here.
Overview
Ostium primum defects usually occur due to the failure in fusion of the septum primum with the endocardial cushion.
Anatomy of an Ostium Primum Defect
- It occurs from the failure of fusion of the septum primum with the endocardial cushion.
- The endocardial cushion, is the portion of the heart where the atrial septum meets the ventricular septum and the mitral valve meets the tricuspid valve.
- Due to this, these defects commonly occurs in association with other cardiac anomalies such as atrioventricular valves (the mitral valve and the tricuspid valve).
- The abnormalities of the atrioventricular valves include the cleft mitral valve, and the single atrioventricular valve (a single large, deformed valve that flows into both the right ventricle and the left ventricle).
- These are usually large sized defects when compared to the secundum defects
- Endocardial cushion defects are the most common congenital heart defect that is associated with Down's syndrome.