Patent ductus arteriosus echocardiography: Difference between revisions
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{{CMG}}; '''Associate Editor-In-Chief:''' [[Priyamvada Singh|Priyamvada Singh, M.B.B.S.]] [mailto:psingh@perfuse.org], {{CZ}}, '''Assistant Editor-In-Chief:''' [[Kristin Feeney|Kristin Feeney, B.S.]] [mailto:kfeeney@perfuse.org] | {{CMG}}; '''Associate Editor-In-Chief:''' [[Priyamvada Singh|Priyamvada Singh, M.B.B.S.]] [mailto:psingh@perfuse.org], {{CZ}}, '''Assistant Editor-In-Chief:''' [[Kristin Feeney|Kristin Feeney, B.S.]] [mailto:kfeeney@perfuse.org] | ||
==Overview== | ==Overview== | ||
Echocardiogram is the non-invasive method and can diagnose patent ductus arteriosus. Echo along with doppler can be used to | |||
==Echocardiogram== | ==Echocardiogram== | ||
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==External links== | ==External links== | ||
* [http://mcb.berkeley.edu/courses/mcb135e/fetal.html Fetal Circulation at berkeley.edu] | * [http://mcb.berkeley.edu/courses/mcb135e/fetal.html Fetal Circulation at berkeley.edu] | ||
* [http://goldminer.arrs.org/search.php?query=Patent%20ductus%20arteriosus Goldminer: Patent ductus arteriosus] | * [http://goldminer.arrs.org/search.php?query=Patent%20ductus%20arteriosus Goldminer: Patent ductus arteriosus] | ||
Revision as of 10:23, 17 August 2011
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Patent Ductus Arteriosus Microchapters |
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Differentiating Patent Ductus Arteriosus from other Diseases |
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Treatment |
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Medical Therapy |
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Case Studies |
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Patent ductus arteriosus echocardiography On the Web |
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American Roentgen Ray Society Images of Patent ductus arteriosus echocardiography |
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Risk calculators and risk factors for Patent ductus arteriosus echocardiography |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor-In-Chief: Priyamvada Singh, M.B.B.S. [2], Cafer Zorkun, M.D., Ph.D. [3], Assistant Editor-In-Chief: Kristin Feeney, B.S. [4]
Overview
Echocardiogram is the non-invasive method and can diagnose patent ductus arteriosus. Echo along with doppler can be used to
Echocardiogram
In the adult, doppler can be used to visualize the shunt from the aorta to the left pulmonary artery. PDAs can be seen on:
- Suprasternal view
- High pasasternal short-axis view: aim probe leftward/superior
- Transesophageal echocardiogram (often needed in adults to accurately visualize a PDA)
Functions
- Estimate the magnitude of the shunt
- Degree of left ventricular and left atrial dilation
- Calculation of the peak pressure gradient in the PDA can be calculated with the modified Bernoulli equation
- Associated anomalities
The PDA can usually be visualized on two-dimensional echocardiography, showing left atrial (LA) and left ventricular (LV) enlargement. It can also be assessed by doppler and color flow imaging, establishing the diagnosis and distension of a small nonpulmonary hypertensive ductus from a coronary arteriovenous fistula to the pulmonary artery. Doppler shows the presence of a continuous flow into the left PA and main PA trunk. The maximun acceleration of the blood flow is in latter systole and early diastole.
