Patent ductus arteriosus echocardiography: Difference between revisions
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{{ | {{Patent ductus arteriosus}} | ||
{{CMG}} | {{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== | |||
'''Associate Editor-In-Chief:''' | |||
'''Assistant Editor-In-Chief:''' [[Kristin Feeney|Kristin Feeney, B.S.]] | |||
==Echocardiogram== | ==Echocardiogram== | ||
In the adult, doppler can be used to visualize the shunt from the aorta to the left pulmonary artery. | In the adult, doppler can be used to visualize the shunt from the aorta to the left pulmonary artery. | ||
PDAs can be seen on: | PDAs can be seen on: | ||
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* Transesophageal echocardiogram (often needed in adults to accurately visualize a PDA) | * Transesophageal echocardiogram (often needed in adults to accurately visualize a PDA) | ||
==Functions== | |||
* Estimate the magnitude of the shunt | * Estimate the magnitude of the shunt | ||
* Degree of left ventricular and left atrial dilation | * Degree of left ventricular and left atrial dilation | ||
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{{reflist}} | {{reflist}} | ||
==External | ==External links== | ||
[http://www. | * [http://www.schneiderchildrenshospital.org/peds_html_fixed/peds/hrnewborn/pda.htm High-Risk Newborn - Patent Ductus Arteriosus (PDA)] | ||
* [http://www.merck.com/mmhe/sec23/ch265/ch265b.html#sec23-ch265-ch265b-293 Patent Ductus Arteriosus from Merck] | |||
* [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] | |||
[[Category: | [[Category:Disease state]] | ||
[[Category:Cardiology]] | [[Category:Cardiology]] | ||
[[Category:Congenital heart disease]] | [[Category:Congenital heart disease]] | ||
Revision as of 10:17, 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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Diagnosis |
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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
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.
