Pathophysiology of mitral stenosis, Biology

Assignment Help:

Q. Pathophysiology of mitral stenosis?

Normally there is no pressure gradient between left atrium and the left ventricle during diastole. However, as the valve orifice size decreases pressure gradient develops across mitral valve in diastole and the mean left atrial pressure increases. Increase in left atrial pressure would cause increase in the pulmonary artery wedge pressure. Increase in pulmonary artery wedge pressure would cause interstitial congestion by way of Starling's forces and this presents as symptoms of dyspnoea. Further rise in pulmonary artery wedge pressure causes pulmonary edema and pulmonary arterial hypertension. In some patients there will be disproportionate rise in pulmonary artery pressure due to vasoreactivity of pulmonary arteries. As the pulmonary artery systolic pressure increases further the right ventricle fails and features of right heart failure would ensue.


Related Discussions:- Pathophysiology of mitral stenosis

Explain the primary and secondary air pollutants, Explain the Primary and S...

Explain the Primary and Secondary air Pollutants a. Primary pollutants -emitted directly  Particulate matter ( Sulfur dioxide (SO 2 ) Nitrogen dioxide (NO 2 )

Consciousness as inner state, Q. Explain Consciousness as inner state? ...

Q. Explain Consciousness as inner state? Consciousness as inner state: We are conscious of thoughts, images, emotions and memories within ourselves though they may not have phy

Lateral and the apical buds of the plants, What is the dissimilarity betwee...

What is the dissimilarity between the lateral and the apical buds of the plants? The Lateral buds are portions of meristematic tissue located in the base of the shoots. The Api

Tetrasaccharides, TETRASACCHARIDES The oligosaccharides are formed b...

TETRASACCHARIDES The oligosaccharides are formed by condensation of four monosaccharides. T rachyos e is a nonreducing tetrasaccharide found in plants as transport ca

Define biomaterial and an implant and state, Q. Define biomaterial and an i...

Q. Define biomaterial and an implant and state? a) Biologically compatibility: an ideal implant material will elicit mainly physiological reactions within the surrounding tissu

Respiratory insufficiency and respiratory failure, Respiratory Insufficienc...

Respiratory Insufficiency Respiratory insufficiency usually indicate inadequate exchange of oxygen and carbondioxide to meet the needs of the body during normal activities.

Explain about suspensions, Explain about Suspensions Sol is a colloidal...

Explain about Suspensions Sol is a colloidal system, in which solid particles are dispersed in a liquid. When the particles of a solid are separated into large aggregates of pa

Can you explain ventricular tachycardia, Q. Can you explain Ventricular Tac...

Q. Can you explain Ventricular Tachycardia? The term is usually reserved for at least four or more beats and modified by the term non sustained. Short runs of non-sustained VT

Define indicators at the individual level, Define Indicators at the individ...

Define Indicators at the individual level? Number of individuals who have gone hungry through lack of personal food supply, amount of expenditure on food, percent of disposable

Illustrate about the insulin and insulin syring, Insulin, insulin syringe ...

Insulin, insulin syringe and insulin devices Insulin is the hormone used to treat diabetes mellitus. Insulin is given in the form of injection, because the gastro intestinal tr

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd