RCA Stenosis
(Redirected from RCA Narrowing)
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An RCA Stenosis is a coronary stenosis that causes right coronary artery narrowing affecting inferior myocardial perfusion.
- AKA: Right Coronary Artery Stenosis, RCA Narrowing, Right Coronary Stenosis.
- Context:
- It can typically reduce RCA Blood Flow to inferior wall myocardium.
- It can typically affect RCA-Dependent Territory including inferior left ventricle.
- It can typically involve RCA Atherosclerotic Plaque causing rca luminal narrowing.
- It can typically present RCA Ischemic Patterns on electrocardiogram.
- It can typically require RCA Revascularization when hemodynamically significant.
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- It can often occur at RCA Proximal Segment near coronary ostium.
- It can often involve RCA Mid Segment at acute margin.
- It can often affect RCA Distal Segment near crux.
- It can often compromise Posterior Descending Artery in dominant rca system.
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- It can range from being a Mild RCA Stenosis to being a Severe RCA Stenosis, depending on its rca stenosis percentage.
- It can range from being a Proximal RCA Stenosis to being a Distal RCA Stenosis, depending on its rca lesion location.
- It can range from being a Focal RCA Stenosis to being a Diffuse RCA Stenosis, depending on its rca lesion length.
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- It can be visualized through RCA Angiography during cardiac catheterization.
- It can be detected by RCA CTA Imaging with contrast enhancement.
- It can cause Inferior Wall Ischemia during stress testing.
- It can lead to Inferior Myocardial Infarction with rca occlusion.
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- Example(s):
- RCA Stenosis Severity Levels, such as:
- Mild RCA Stenosis with 25-50% rca narrowing.
- Moderate RCA Stenosis showing 50-70% rca narrowing.
- Severe RCA Stenosis demonstrating [[>70% rca narrowing]].
- Critical RCA Stenosis with [[>90% rca narrowing]].
- RCA Stenosis Locations, such as:
- RCA Stenosis Patterns, such as:
- Discrete RCA Stenosis with focal rca narrowing.
- Tandem RCA Stenosis showing serial rca lesions.
- Diffuse RCA Stenosis involving long rca segment.
- RCA Stenosis Clinical Presentations, such as:
- Symptomatic RCA Stenosis causing inferior angina.
- Silent RCA Stenosis without clinical symptom.
- Acute RCA Stenosis presenting inferior stemi.
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- RCA Stenosis Severity Levels, such as:
- Counter-Example(s):
- LAD Stenosis, which affects left anterior descending artery rather than right coronary artery.
- LCx Stenosis, which involves left circumflex artery rather than rca.
- Left Main Stenosis, which narrows left main coronary artery rather than rca.
- RCA Spasm, which causes functional rca narrowing rather than fixed stenosis.
- See: Coronary Stenosis, Right Coronary Artery, Coronary Atherosclerosis Disease, Single-Vessel Atherosclerosis Disease, Inferior Myocardial Infarction.