Patent foramen ovale pathophysiology: Difference between revisions
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==Overview== | ==Overview== | ||
If there are elevated right sided pressures, shunting of blood from the [[right atrium]] to the [[left atrium]] can occur. The patent [[foramen ovale]] is completely covered but not completely sealed. As a result, it is also sometimes called as a '''probe patent''' (PFO) (as the foramen can be opened with reversal of shunt). Elevation of pressure in the pulmonary circulatory system (i.e.: [[pulmonary hypertension]] due to various causes, or transiently during a [[cough]]) can cause the foramen ovale to remain open. | If there are elevated right sided pressures, shunting of blood from the [[right atrium]] to the [[left atrium]] can occur. The patent [[foramen ovale]] is completely covered but not completely sealed. As a result, it is also sometimes called as a '''probe patent''' (PFO) (as the foramen can be opened with reversal of shunt). Elevation of pressure in the pulmonary circulatory system (i.e.: [[pulmonary hypertension]] due to various causes, or transiently during a [[cough]] or [[valsalva maneuver]]) can cause the foramen ovale to remain open. | ||
==References== | ==References== | ||
Revision as of 10:22, 4 September 2011
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Patent Foramen Ovale Microchapters |
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Patent foramen ovale pathophysiology On the Web |
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editors-In-Chief: Priyamvada Singh, M.B.B.S. [2]; Assistant Editor-In-Chief: Kristin Feeney, B.S. [3]
Overview
If there are elevated right sided pressures, shunting of blood from the right atrium to the left atrium can occur. The patent foramen ovale is completely covered but not completely sealed. As a result, it is also sometimes called as a probe patent (PFO) (as the foramen can be opened with reversal of shunt). Elevation of pressure in the pulmonary circulatory system (i.e.: pulmonary hypertension due to various causes, or transiently during a cough or valsalva maneuver) can cause the foramen ovale to remain open.