Aortic insufficiency cardiac catheterization: Difference between revisions
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Revision as of 16:49, 14 April 2012
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Aortic Regurgitation Microchapters |
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Diagnosis |
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Treatment |
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Acute Aortic regurgitation |
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Chronic Aortic regurgitation |
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Special Scenarios |
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Aortic insufficiency cardiac catheterization On the Web |
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American Roentgen Ray Society Images of Aortic insufficiency cardiac catheterization |
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Risk calculators and risk factors for Aortic insufficiency cardiac catheterization |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor-In-Chief: Cafer Zorkun, M.D., Ph.D. [2], Varun Kumar, M.B.B.S., Lakshmi Gopalakrishnan, M.B.B.S.
Overview
The use of angiography in assessment of aortic insufficiency is limited because of convenience and non-invasive merits of echocardiogram. Nevertheless, following parameters can be assessed:
- Number of leaflets of aortic valve
- Motion abnormalities of leaflets
- A semiquantitative assessment of the severity of regurgitation
- Left ventricular size and systolic function (ejection fraction)
- Aortic root diameter and other associated disorders such as dissection.
Performance of Aortography
The pigtail catheter is placed a few centimeters above the aortic root. The image intensifier is place in the 45 degree left anterior oblique view with no cranial or caudal angulation. Usually a total of 40 to 50 cc of dye is injected with approximately 20 cc administered every second. You should tell the patient that they can expect a warm feeling throughout their body.
Grading Aortic Insufficiency
The grade of aortic insufficiency is based on the opacification of the left ventricle 2 complete cardiac cycles after injection compared to that of the aortic root.
Grade 1
Brief and incomplete ventricular opacification. Clears rapidly.
Grade 2
Moderate opacification of the ventricle that clears in less that 2 cycles. Never greater than aortic root opacification.
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Grade 3
Opacification of the ventricle equal to aortic root opacification within 2 cycles. Delayed clearing of ventricle over several cycles.
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Grade 4
Opacification of the ventricle almost immediately that is greater than that of the aortic root with delayed clearing of the ventricle.
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ACC/AHA Guidelines-Indications for Cardiac Catheterization of Aortic Insufficiency (DO NOT EDIT) [1]
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Class I1. Cardiac catheterization with aortic root angiography and measurement of LV pressure is indicated for assessment of severity of regurgitation, LV function, or aortic root size when noninvasive tests are inconclusive or discordant with clinical findings in patients with AR. (Level of Evidence: B) 2. Coronary angiography is indicated before AVR in patients at risk for CAD. (Level of Evidence: C) Class III1. Cardiac catheterization with aortic root angiography and measurement of LV pressure is not indicated for assessment of LV function, aortic root size, or severity of regurgitation before AVR when noninvasive tests are adequate and concordant with clinical findings and coronary angiography is not needed. (Level of Evidence: C) 2. Cardiac catheterization with aortic root angiography and measurement of LV pressure is not indicated for assessment of LV function and severity of regurgitation in asymptomatic patients when noninvasive tests are adequate. (Level of Evidence: C) |
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Sources
- 2008 Focused Update Incorporated Into the ACC/AHA 2006 Guidelines for the Management of Patients With Valvular Heart Disease [1].
References
- ↑ 1.0 1.1 Bonow RO, Carabello BA, Chatterjee K, de Leon AC, Faxon DP, Freed MD; et al. (2008). "2008 focused update incorporated into the ACC/AHA 2006 guidelines for the management of patients with valvular heart disease: a report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines (Writing Committee to revise the 1998 guidelines for the management of patients with valvular heart disease). Endorsed by the Society of Cardiovascular Anesthesiologists, Society for Cardiovascular Angiography and Interventions, and Society of Thoracic Surgeons". J Am Coll Cardiol. 52 (13): e1–142. doi:10.1016/j.jacc.2008.05.007. PMID 18848134.