What is the clinical presentation of aortic regurgitation in pulmonary artery catheterization (PAC)?

Updated: Dec 22, 2017
  • Author: Bojan Paunovic, MD; Chief Editor: Karlheinz Peter, MD, PhD  more...
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Answer

Aortic regurgitation

The hemodynamic abnormalities are different in acute and chronic aortic regurgitation. Acute regurgitation is observed most often in bacterial endocarditis, chest trauma, ascending aortic dissection, and degeneration of valve leaflets. The hemodynamics in acute aortic regurgitation include modestly elevated RAP and elevated RV systolic and diastolic pressures. PA systolic and diastolic pressures also are elevated, as is PCWP. A widened and elevated systemic arterial pressure without a dicrotic notch is sometimes observed. Acute and chronic aortic regurgitation often present with contrasting manifestations; a wide pulse pressure usually is not observed in acute regurgitation.


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