Patent ductus arteriosus chest x ray: Difference between revisions
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==Chest X Ray== | ==Chest X Ray== | ||
The findings on chest Xray depends on the degree of shunting between left and right system, | The findings on chest Xray depends on the degree of shunting between left and right system, | ||
'''Small PDA''' | '''Small PDA''' | ||
*Normal heart size and vascularity. | *Normal heart size and vascularity. | ||
'''Medium-sized PDA''': | '''Medium-sized PDA''': | ||
*Occasionally, the ductus can be seen as a separate convexity between the aortic knob and the pulmonary artery segments. | *Occasionally, the ductus can be seen as a separate convexity between the aortic knob and the pulmonary artery segments. | ||
*Cardiomegaly related to left atrium and left ventricular volume overloads. | *Cardiomegaly related to left atrium and left ventricular volume overloads. | ||
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'''Large-sized PDA''': | '''Large-sized PDA''': | ||
*Similar to a PDA complicated by pulmonary vascular disease. | *Similar to a PDA complicated by pulmonary vascular disease. | ||
*Left ventricular overload regresses by adolescence and the heart size may revert to normal. | *Left ventricular overload regresses by adolescence and the heart size may revert to normal. | ||
*The apex may be tilted upward reflecting right ventricular hypertrophy. | *The apex may be tilted upward reflecting right ventricular hypertrophy. | ||
*The pulmonary trunk and its branches are markedly dilated and may show central calcification, but in the outer third there is an abrupt decrease in vascularity. | *The pulmonary trunk and its branches are markedly dilated and may show central calcification, but in the outer third there is an abrupt decrease in vascularity. | ||
==References== | ==References== | ||
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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 10:05, 17 August 2011
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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
Chest X Ray
The findings on chest Xray depends on the degree of shunting between left and right system,
Small PDA
- Normal heart size and vascularity.
Medium-sized PDA:
- Occasionally, the ductus can be seen as a separate convexity between the aortic knob and the pulmonary artery segments.
- Cardiomegaly related to left atrium and left ventricular volume overloads.
- Increase in the pulmonary vascular markings.
- The ascending aorta may be prominent due to increased flow.
Large-sized PDA:
- Similar to a PDA complicated by pulmonary vascular disease.
- Left ventricular overload regresses by adolescence and the heart size may revert to normal.
- The apex may be tilted upward reflecting right ventricular hypertrophy.
- The pulmonary trunk and its branches are markedly dilated and may show central calcification, but in the outer third there is an abrupt decrease in vascularity.