FAQ - ischemia
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What should we do to avoid Silent ISCHEMIA?
Actually, ischemia is caused by atherosclerosis or hardening of the small arteries of the heart due to accumulation and deposition of plaques. These plaques are composed of hardened cholesterol which primarily comes from the food we eat. If this is not avoided, the ischemia may progress into tissue infarct or tissue death that may eventually lead to death of heart muscle. If we observe a healthy lifestyle by choosing the right food to eat, like fat free foods, and regular cardio exercise, we can avoid incidence of ischemia. (+ info
4. What kind of ECG changes would indicate myocardial ischemia?
Thanks for any info you can give.
The 12 lead ECG is used to classify patients into one of three groups:
1. those with ST segment elevation or new bundle branch block (suspicious for acute injury and a possible candidate for acute reperfusion therapy with thrombolytics or primary PCI),
2. those with ST segment depression or T wave inversion (suspicious for ischemia), and
3. those with a so-called non-diagnostic or normal ECG. (+ info
I had a Cardiolite Stress Test using a chemical stressor showing "inferior Ischemia" and "fixed apical defect"
I want to know what this means. I can't find an answer I can understand. I have an appt. with a cardiologist the day after tomorrow.
You most likely have a blockage in the Right Coronary Artery. That artery supplies the right Ventricle, which lies next to the diaphragm. It is inferior to the left ventricle.. The fixed apical defect means that you have had a complete blockage, or an almost complete blockage to a terminal segment of the artery going to the very tip of your heart. Exercise is supposed to dilate your arteries. So a fixed defect means that there was no ability to dilate that segment and to deliver further blood to that area. That means that you had a previous infarction (heart attack). The inferior ischemia indicates that there is not enough blood flow to the inferior portion of your heart. But in this case, the exercise dilates the blood vessel enough that blood flow picks up. So there isn't a fixed defect. I suspect that there is, or are several blockages. The one that is downstream has done its damage. The upstream blockage might be amenable to surgery or a stent.
Not all heart attacks cause the classic symptoms of chest pain, anxiety and feelings of doom, radiation of pain to the left side, sweating and nausea. In the case of Right ventricular heart attacks, they generally have an atypical presentation - often presenting with sever nausea or vomiting, hiccups, etc. That's because, as I said, it sits on the diaphragm and so it gets confused (by the brain) with GI or stomach problems.
You don't say how symptomatic you are. but the fact that you have had the Cardiolite stress test indicates that your cardiologist was worried about giving you an all-out exercise stress test. He was worried that that might have precipitated another heart attack. My guess is that a heart catheterization is in line for you. (+ info
how long does ischemia ( toes ) have to be in effect before amputation?
i am diabetic with a vascular problem along with 2 stents and a femoral bypass. female 39 yrs with toes that are ischemic. i have been told they will need to be amputated i want to know how long i am looking at. can it be reversed, the ones already changing colors. can anyone help me? i also have psoriasis will that also affect the blood flow and lack of oxygen? i look forward to some input. thank you
I guess it depends on the individual.
My Mother started with a sore toe on Christmas eve & by new years eve it was turning black & purple & smelled awful so new years day the vascular surgeon removed her big toe.
She is still having the district nurse in to clean & dress it 3 months on.
On a positive note...... Her toe is healing well & it has started to close up nicely. no secondary infections etc.
Diabetes is a nasty condition if you dont keep it under control
Good luck (+ info
I am a laboratorian. I would like to know any of your experience with Ischemia Modified Albumin.?
The Ischemia Modified Albumin is supposed to be used in patients with chest pain to rule out Acute Coronary Syndromes in low risk patients.
Is anyone using this in their lab or practice?
Not yet. I work in a teaching hospital lab so I guess the new docs haven't had this lesson yet. (+ info
what is an echocardiogram and should you have one if you have ischemia?
Echocardiography is used to diagnose certain cardiovascular diseases. In fact, it is one of the most widely used diagnostic tests for heart disease. It can provide a wealth of helpful information, including the size and shape of the heart, its pumping strength, and the location and extent of any damage to its tissues. It is especially useful for assessing diseases of the heart valves. It not only allows doctors to evaluate the heart valves, but it can detect abnormalities in the pattern of blood flow, such as the backward flow of blood through partly closed heart valves, known as regurgitation. By assessing the motion of the heart wall, echocardiography can help detect the presence and assess the severity of coronary artery disease, as well as help determine whether any chest pain is related to heart disease. Echocardiography can also help detect hypertrophic cardiomyopathy, in which the walls of the heart thicken in an attempt to compensate for heart muscle weakness. The biggest advantage to echocardiography is that it is noninvasive (doesn't involve breaking the skin or entering body cavities) and has no known risks or side effects.(Wikipedia)
Echocardiography uses ultrasound waves to produce an image of the heart and great vessels. It helps assess heart wall thickness (eg, in hypertrophy or atrophy) and motion and provides information about ischemia and infarction. It can be used to assess diastolic filling patterns of the left ventricle, which can help in the diagnosis of left ventricular hypertrophy, hypertrophic or restrictive cardiomyopathy, severe heart failure, constrictive pericarditis, and severe aortic regurgitation.(Merck)
Please see the web pages for more details on Echocardiography. (+ info
Which part of cardiac output is most likely to be affected by ischemia of myocardium - i.e. from a MI?
When a myocardial infarction occurs, what component of cardiac output is most likely to be affected as a result of the ischemic tissue? Is it the afterload, preload, or contractility? I'm thinking it's either the afterload or contractility.
In a myocardial injury, a percent of the heart muscle is lost and the heart cannot work successfully, so the after load is affected(the amount that stays in the heart)and this is added to the amount of blood that comes to the heart , so the preload is affected also.
If Cardiogenic Shock sets in: Cardiogenic Shock, which is defined as shock resulting from a decline in cardiac output secondary to serious heart disease such as myocardial infarction. In cardiogenic shock, the preload and the after load are increased, while myocardial contractility is decreased. (+ info
What is inferior wall ischemia?
Can anybody explain to me what is meant by inferior wall ischemia? is it a serious disorder? Can it be detected with echocardiography? What type of treatment and lifestyle is advised for someone diagnosed with it (age 31, normal blood pressure)?
Inferior wall ischemia refers to a condition of the heart muscle. It usually occurs as a result of a blockage in one of the arteries supplying that portion of the heart muscle with oxygen. This is a serious condition, and can be indicative of what is commonly known as a "heart attack". It is often first diagnosed by EKG, but may also be diagnosed by echocardiogram. This finding should be taken seriously, if confirmed by a medical professional as an actual diagnosis. Often, patients are given copies of their EKG's, which are "read" by a computer. The interpretation on the EKG can be misleading, as it is often worded, "consider inferior wall ischemia". There are many intricacies involved in the interpretation of an EKG, and if your question stems from your having read such a document, you should find a reputable practitioner whom you trust, to interpret the results of your tests. She would use blood testing, physical examination and possibly EKG stress testing to give you a definitive answer. The best advice for lifestyle health is simple. Eat a healthy high fiber, low sodium, low saturated fat diet, exercise regularly, abstain from tobacco and excessive alcohol use and drink plenty of water. Get adequate daily rest and relaxation and abstain from risky sexual activity. (+ info
What is Ischemia of the septal wall?
What happens when a nuclear laboratory reports decreased tracer uptake is seen to the septal wall. What does mean redistribution of the septal wall?What happens
Nuclear tests are great at telling you where there is deficit of blood flow. That implies narrowing of a particular coronary artery. "Decreased tracer uptake" in the septal wall means the artery that supplies the septum (the musculafr divider between left and right side of the gheart) may be blocked to some degree (but not fully). It means you are at the risk of a heart attack to this area and may need an angiogram to take a closer look (and to open the blockage if ned be). Work with your cardiologist about it and good luck! (+ info
what is the nagitive maximal ischemia at high work load?
It should be negative for ischemia at maximal work load. That means that the stress test (treadmill exercise test or any other stress test) is negative for inducible ischemia at maximum work load for the heart. Ischemia means reduction in blood supply. Reduction in blood supply can occur due to narrowing of blood vessels supplying the heart.
Negative for ischemia at maximal work load indicates a good result. (+ info
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