Left ventricular outflow and mean aortal pressure?
Obviously I wasn't specific enough in my question so will re-phrase it.
Is there any evidence from direct measurements of total flow and mean pressure at the aortic valve, that the quotient of pressure over flow increases with the aging process?
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Here is link that will help you out:
http://circ.ahajournals.org/cgi/content/full/92/6/1473 (
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where is the left ventricular outflow tract?
for the heart
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Left ventricular outflow tract is the region just below the aortic valve, actually the region through which blood moves out of the left ventricle. It is bounded by the interventricular septum in the front and the anterior (front) mitral leaflet in back. (
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What does a symptomatic supra ventricular rhythem disturbance mean?
I've had to wear a 24 hour ECG monitor to pick up evidence of a symptomatic supra ventricular rhythm disturbance, but I do not know what this mean? Can any one help? Really not sure what supra ventricular rhythm disturbance is!!
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"supraventricular" means that the rhythm originates above the ventricles, the main pumping chambers of the heart.
Symptomatic means that it causes you problems, such as dizziness, shortness of breath, etc. (
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What kind of Ventricular fibrillation is not dangerous or life-threatening?
What kind of Ventricular fibrillation is not dangerous or life-threatening? That's allowed to live with it with a simple pacemaker (not ICD) to pace it out when it happens.
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all v-fib is life threatening, maybe you mean atrial fibrillation, that is commonly treated with a pacemaker if cardioversion is unsuccessful and the heart rate is too low. (
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What is a normal left ventricular ejection fraction?
A year ago I had an echocardiogram and my left ventricular ejection fraction was 62%, now it is 45%. I have cardiomyopathy. What does all this mean? Can you provide a credible website that explains it? Thank you. Any help is appreciated.
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A normal LV ejection fraction is on the order of 55%. I'm afraid I don't know which website can explain this, I beg your pardon. (
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What is left ventricular cavity obliteration?
I saw my cardiologist today and have been diagnosed with left ventricular hypertrophy. I'm well aware of the condition, but on the echocardiogram, it said "complete left ventricular cavity obliteration." I have no clue what that means. Can't find a thing on the web. Any clues?
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LV cavity obliteration is basically what it sounds like, when the LV squeezes in systole the cavity is completely closed off. Normally the LV doesn't completely empty of blood. Depending on how severe your LVH is, that could be the cause. It could also be caused by dehydration. (
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From what percentage of obstruction a heart surgery is recomended?
My father has a 40% obstruction on his right coronary and 50% on his left coronary, and a 80% obstruction on his left marginal. With these levels what is the best approach? Heart surgery, angioplasty or other? Detail: although in good health he is 73 yo.
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It is not clear from your answer where the 50% on the left coronory was located....
The reason this is important is that disease in the Left Main or 3 vessel disease (L coronory, R coronory, Circumflex) are the 2 clear cut indications for CABG or coronory artery bypass grafting. Mostly of the other blockages are handled and handled well with Angioplasty with or without stents..
Your cardiologist will look at several different things to decide on the treatment approach including collateral blood flow..pump function of the heart etc..
And by the way some of the answers above are ridiculously flawed...if the lesions are such that your cardiologist suggests CABG then that is what he should have. (
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What is going on on the EKG and in the heart when ventricular Diastole is too slow?
Also:
1. What is going on on the EKG and in the heart when ventricular Systole is too slow?
2. What is going on on the EKG and in the heart when ventricular Diastole is too Fast?
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QRS interval should prolong if systole is too slow and QT interval should prolong if diastole is too slow. Tachycardia should ensue if both these are fast. (
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How long can a person live with a bowel obstruction?
My mother-in-law is in the hospital and very sick.She's been there for 5weeks now and they just found out that now she has an obstruction on top of everything else thats wrong with her , and she isn't strong enough to have surgery to remove it.How long can she live with it?They say shes had it for about 3 weeks already.
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She must not be completely obstructed if she has had it for 3 weeks. The doctors can probably get it moving without surgery. Either way, pray for her and keep up hope. (
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What condition results from an obstruction that totally blocks the flow of blood in a coronary artery?
What condition results from an obstruction that totally blocks the flow of blood in a coronary artery?
A. Headache
B. Heart attack
C. Stroke
D. Blindness
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Answer is B. Heart attack (Myocardial infarction).
Acute coronary syndromes result from acute obstruction of a coronary artery. Consequences depend on degree and location of obstruction and range from unstable angina to non-ST-segment elevation MI (NSTEMI), ST-segment elevation MI (STEMI), and sudden cardiac death. Symptoms are similar in each of these syndromes (except sudden death) and include chest discomfort with or without dyspnea, nausea, and diaphoresis. Diagnosis is by ECG and the presence or absence of serologic markers. Treatment is antiplatelet drugs, anticoagulants, nitrates, β-blockers, and, for STEMI, emergency reperfusion via fibrinolytic drugs, percutaneous intervention, or, occasionally, coronary artery bypass graft surgery. (
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