Pulmonic regurgitation

Pulmonic regurgitation

Pulmonic regurgitation, also known as pulmonary regurgitation, is the backward flow of blood from the pulmonary artery, through the pulmonary valve, and into the right ventricle of the heart during diastole. While a small amount of pulmonic regurgitation may occur in healthy individuals, it is usually detectable only by an echocardiogram and is harmless. More pronounced regurgitation that is noticed through a routine physical examination is a medical sign of disease and warrants further investigation.

igns and symptoms

Mild cases usually do not cause any symptoms. Because pulmonic regurgitation is the result of other factors in the body, any noticeable symptoms are ultimately caused by an underlying medical condition rather than the regurgitation itself. However, more severe regurgitation may contribute to right ventricular hypertrophy, and in later stages, right heart failure.

Causes

Pulmonary hypertension is the most common cause of excessive pulmonic regurgitation. Other possible causes include tetralogy of Fallot, infective endocarditis, and congenital absence of the pulmonary valve.

Treatment

Asymptomatic cases do not require treatment.

Pulmonic regurgitation is generally treated by addressing the underlying condition. In certain cases, the pulmonary valve may be surgically replaced.

References

*"Lange 2008 Current Medical Diagnosis and Treatment, 47th edition" pp. 298-299 ISBN 978-8-07-149430-4
*Xiushui, R., Saavedra, P., Cannistra, L. "Pulmonic Regurgitation", eMedicine, http://www.emedicine.com/med/topic1964.htm


Wikimedia Foundation. 2010.

Игры ⚽ Нужно сделать НИР?

Look at other dictionaries:

  • pulmonic regurgitation — (PR) the backflow of blood from the pulmonary artery into the right ventricle, owing to pulmonary valve insufficiency …   Medical dictionary

  • Regurgitation (circulation) — Regurgitation is blood flow in the opposite direction from normal, as the backward flowing of blood into the heart or between heart chambers. Can be categorized by:# aortic: the backflow of blood from the aorta into the left ventricle, owing to… …   Wikipedia

  • Regurgitation — A backward flowing. For example, of food. Or the sloshing of blood back into the heart (or between chambers of the heart) when a heart valve is incompetent and does not close effectively. * * * 1. A backward flow, as of blood through an… …   Medical dictionary

  • valvular regurgitation — regurgitation of the blood through the orifices of the heart valves owing to imperfect closing of the valves; see aortic, mitral, pulmonic, and tricuspid r …   Medical dictionary

  • Diastolic heart murmur — Auscultogram from normal and abnormal heart sounds Diastolic heart murmurs are heart murmurs heard during diastole.[1] …   Wikipedia

  • Heart murmur — For the French motion picture, see Murmur of the Heart. Cardiac murmurs and other cardiac sounds Auscultogram from normal and abnormal heart sounds ICD 10 …   Wikipedia

  • Watson's water hammer pulse — is the medical sign which describes a pulse that is bounding and forceful,[1] or, in other words, rapidly increasing and subsequently collapsing,[2] as if it were the hitting of a water hammer that was causing the pulse. This is associated with… …   Wikipedia

  • Mayne's sign — is a clinical sign in which there is a drop of at least 15 mmHg (2.0 kPa) in the systolic blood pressure on raising the arm. It occurs in patients with aortic regurgitation.[1] References ^ Aortic regurgitation at The Merck Manual… …   Wikipedia

  • Osborn wave — Schematic representation of normal ECG Atrial fibrillation …   Wikipedia

  • De Musset's sign — is a condition in which there is rhythmic nodding or bobbing of the head in synchrony with the beating of the heart, in general as a result of aortic insufficiency caused by aortic regurgitation due to aortic valve deficiency. The condition was… …   Wikipedia

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”