Left-to-right shunt: Difference between revisions
Left-to-right shunt moved to Atrial septal defect left-to-right shunt: Sitewide naming convention. |
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# | {{Atrial septal defect}} | ||
{{CMG}} | |||
'''Associate Editors-In-Chief:''' {{CZ}}; [[Priyamvada Singh|Priyamvada Singh, MBBS]] [[mailto:psingh13579@gmail.com]] | |||
'''Assistant Editor-In-Chief:''' [[Kristin Feeney|Kristin Feeney, B.S.]] [[mailto:kfeeney@elon.edu]] | |||
==Overview== | |||
Left-to-right shunting refers to the abnormal situation in which blood travels form the left side of the heart or the arterial circulation to to the right side. In patients with atrial septal defects, the circulation of blood flow may become altered due to an opening or hole in wall or septum that separates the [[left atrium]] and [[right atrium]]. Because the blood pressure is higher in the [[left atrium]] than in the [[right atrium]], there is initially a change in the blood flow from left-to-right, referred to as left-to-right shunting. There may also be left-to-right shunting in patients with a [[ventricular septal defect]] and in those patients in which there is an anomalous connection between the great vessels. | |||
==Pathophysiology== | |||
A '''left-to-right shunt''' is a [[heart|cardiac]] [[shunt (medical)|shunt]] which allows, or is designed to cause, [[blood]] to [[circulatory system|flow]] from the [[left heart]] to the [[right heart]]. This occurs when: | |||
#There is an opening or passage between the [[atria]], [[Ventricle (heart)|ventricle]]s, and/or [[great vessels]]; ''and'', | |||
#The left heart [[blood pressure|pressure]] is higher than right heart pressure and/or the shunt has a one-way [[heart valve|valvular]] opening. | |||
[[Image:Atrial septal defect-en.png|300px|Atrial septal defect with left-to-right shunt]] | |||
==Causes== | |||
#[[Atrial septal defect]] | |||
#[[Ventricular septal defect]] | |||
# Anomalous connection between the great vessels | |||
==References== | |||
{{reflist|2}} | |||
[[Category:Cardiovascular system]] | |||
[[Category:Cardiology]] | |||
[[Category:Mature chapter]] | |||
{{WikiDoc Help Menu}} | |||
{{WikiDoc Sources}} | |||
Latest revision as of 15:28, 2 November 2012
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Atrial Septal Defect Microchapters | |
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Treatment | |
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Surgery | |
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Left-to-right shunt On the Web | |
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American Roentgen Ray Society Images of Left-to-right shunt | |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Associate Editors-In-Chief: Cafer Zorkun, M.D., Ph.D. [2]; Priyamvada Singh, MBBS [[3]]
Assistant Editor-In-Chief: Kristin Feeney, B.S. [[4]]
Overview
Left-to-right shunting refers to the abnormal situation in which blood travels form the left side of the heart or the arterial circulation to to the right side. In patients with atrial septal defects, the circulation of blood flow may become altered due to an opening or hole in wall or septum that separates the left atrium and right atrium. Because the blood pressure is higher in the left atrium than in the right atrium, there is initially a change in the blood flow from left-to-right, referred to as left-to-right shunting. There may also be left-to-right shunting in patients with a ventricular septal defect and in those patients in which there is an anomalous connection between the great vessels.
Pathophysiology
A left-to-right shunt is a cardiac shunt which allows, or is designed to cause, blood to flow from the left heart to the right heart. This occurs when:
- There is an opening or passage between the atria, ventricles, and/or great vessels; and,
- The left heart pressure is higher than right heart pressure and/or the shunt has a one-way valvular opening.
Causes
- Atrial septal defect
- Ventricular septal defect
- Anomalous connection between the great vessels