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Acute Aortic Regurgitation : The most dramatic presentation occurs in dissection of the aortic root. Endocarditis of the native or prosthetic aortic valve may also lead to acute regurgitation. The prosthetic valve which is stuck in open or semi open position could also present as acute aortic regurgitation. Iatrogenic cause of acute AR is after balloon valvotonly.
When a large regurgitant volume is suddenly imposed on a normal unprepared left ventricle, it leads to raised left ventricular end diastolic and left atrial pressures. Cardiac output falls and the only compensatory mechanism initially is tachycardia. This will be insufficient and patient presents 'with pulmonary oedema and cardiogenic shock. They require early surgery, as. &at is their only chance. Intra aortic balloon pump is contra indicate4 in the presence of aortic regurgitation.
In developing countries because of poor compliance, poverty, ignorance, primary and secondary prevention strategies are difficult to implement properly. Also in western countries (
Surveys - Accidents in Industries The surveys done in industries have pointed out that leading cause of accidents is the overexertion or workers working beyond their physical
Define Food processing unit operations? Food processing unit operations are involved in the engineering aspects of food processing, packaging and storage. Heating, cooling, dry
Neurotransmitters We know that transmission of signals from nerves to muscles is affected by acetylcholine a transmitter substance. Similarly neuron-neuron transmission is als
Q. Fats requirement in diabetes? Fats: The total fat recommended by WHO is less than 30% of the total calories. However in view of the widely prevalent Asian paradox in India,
The Eukaryotic cells have five several DNA polymerases; α, β, γ, δ or ε. The DNA polymerases contained in replication of chromosomal DNA are α and δ. DNA polymerases β or ε are con
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Explain about Simple proteins Simple proteins are those which are made of amino acid units only joined by peptide bond. Upon hydrolysis they yield a mixture of amino acids and
List the different systems of the body a) Nervous System b) Respiratory System c) Cardiovascular System d) Neurological and Sensory System e) Gastrointestinal Syste
Q. Investigation of aortic regurgitation by Echocardiogram? Echocardiography is done to confirm the diagnosis of aortic regurgitation, evaluate the cause of AR and assess the a
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