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

Water soluble vitamins, Water Soluble Vitamins B-vitamins are abundant...

Water Soluble Vitamins B-vitamins are abundant in milk and other feeds. B-vitamins are synthesized by rumen microorganisms, beginning soon after a young animal begins feeding.

Structures shared by every chordate, Q What are the three structures shared...

Q What are the three structures shared by every chordate that characterize the group? All beings of the phylum Chordata have branchial clefts in the pharynx in some species pre

Tricuspid excision-types of surgery, Tricuspid Excision :  For tricus...

Tricuspid Excision :  For tricuspid valve endocarditis with vegetations in drug users, valve excision is done by removing three cusps and chordae and papillary muscles. Later

Bacterial growth medium, how a simple medium can be converted into selecti...

how a simple medium can be converted into selective differential and enriched medium?

Demonstrate the cell membrane, While working in the lab, you isolate a cell...

While working in the lab, you isolate a cell from a mouse and a cell from a human and fuse them together to form a live, hybrid cell. You then use an antibody that recognizes all m

Aschelminthes, General characters of aschelminthes

General characters of aschelminthes

Explain the types of fats, Jillian and Michael are in their freshman year a...

Jillian and Michael are in their freshman year at college. The two have been friends since grade school and the two of them enjoy getting together for dinner. Michael typically

Reasons for growth of population, REASON S FOR GROWTH OF POPULATION - ...

REASON S FOR GROWTH OF POPULATION - The human population explosion is mainly a result of reduced death rate. Main reasons for it are - 1 .       Protection from natura

Define procedure for gram staining of bacterial cultures, Define Procedure ...

Define Procedure for Gram Staining of Bacterial Cultures? Now carry out the exercise following the steps enumerated herewith: 1. Label the nutrient agar plates with the name

Explain doctrine of signatures, Explain Doctrine of Signatures? Handed ...

Explain Doctrine of Signatures? Handed down from the ancients, and elaborated on by the herbalists, was the 'Doctrine of Signatures', which was based on features that resembled

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