Show measurement of mitral valve, Biology

Assignment Help:

Q. Show Measurement of mitral valve?

Measurement of mitral valve and gradients across mitral valve are of importance in clinical decision making. Mitral valve area can be measured by planimetry from para sternal short axis view. Alternatively it can also be measured by different Doppler methods including continuity equation, pressure half time (PHT), and proximal isovelocity surface area methods. Mitral stenosis is considered mild if mitral valve area is >1.5 cm2 , moderate if it is between 1.1 to 1.5 cm2 and severe if it is equal to or less than 1.0 cm2. In patients with atrial fibrillation valve area as well as trans valvular gradients are better measured as an average of 5-10 cycles. In the presence of aortic regurgitation, ASD and non compliant left ventricle mitral valve area calculation by PHT method is fallacious. Similarly continuity equation is not applicable in the presence of mitral regurgitation. Errors in measurement are decreased if the color flow mapping is used to direct the continuous wave Doppler beam. While calculated valve area is independent of cardiac output, gradients can be erroneously low with bradycardia and low cardiac output state even in the presence of tight mitral stenosis.

Table:  Echocardiographic Score Used to Predict Outcome of Balloon Valvulopasty

1751_Show Measurement of mitral valve.png

Tran esophageal echocardiogram is helpful in detecting left atrial clots prior to planned balloon valvuloplasty or after an embolic event. Valve morphology can also be better assessed.


Related Discussions:- Show measurement of mitral valve

Explain the carbohydrates and fat requirements during sepsis, Explain the C...

Explain the Carbohydrates and Fat Requirements during Sepsis? Carbohydrates should constitute nearly 60% to 70% of the total energy. Glucose is the primary calorie substrate in

Are the extraembryonic membranes the same in all vertebrates, Q. Are the ex...

Q. Are the extraembryonic membranes the same in all vertebrates? The presence of each extraembryonic membrane differs according to the vertebrate class. In amphibians and fi

How does self infection by tapeworms occur, Q. How does self infection by t...

Q. How does self infection by tapeworms occur? The Taeniasis patients may develop the most severe form of the worm infection, cysticercosis, because their feces contain eggs

Environment can change the genotype of an individual, What are the situatio...

What are the situations in which the environment can change the genotype of an individual? What is the condition for this type of change to be transmitted to the offspring? The

What are the main endocrine glands of the human body, What are the main end...

What are the main endocrine glands of the human body? The major endocrine glands of the human body are the pineal gland (or pineal body), the hypophysis (or pituitary), the thy

Demonstration of diversity of plant and animal - taxonomy, Demonstration of...

Demonstration of Diversity of Plant and Animal - Taxonomy A third objective is the demonstration of tremendous diversity of the plant and animal world and its relation to man's

Cells, Cell theory exception

Cell theory exception

Define the dietary guidelines, Define the Dietary Guidelines? Dietary G...

Define the Dietary Guidelines? Dietary Guidelines are becoming increasingly powerful tools to help the general public to appreciate the role of diet in prevention of degenerati

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