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Doctor insights on: Can 50 Percent Blockage Of Artery Cause Heart Attack

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How much blockage in artery or arteries can cause a heart attack. Also does blockage come from plaque and clot.

How much blockage in artery or arteries can cause a heart attack.  Also does blockage come from plaque and clot.

Blockage is 100%: to suffer an injury the artery must get closed off for a period of time. Talks about percent stenosis (narrowing) reflect how much of the native artery remains open for flow, that number also gives an estimate about how possible it would be for a small clot to come along and plug up that vessel. The usual way the "door slams shut" is when a clot floats in and finishes making a blockage. ...Read more

Dr. Harinder Gill
1 doctor shared a insight

Artery (Definition)

Arteries are defined as blood vessels which carry blood away from the heart (to either the body or lungs). Arteries: higher pressure, thicker walls, stretch (pulse) with each heart contraction & deliver blood to the arterioles which control the flow to individual capillaries. Veins are blood vessels which carry blood from capillaries back to the heart (body to right heart; ...Read more


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Artery heart blockage mild,what are the risks of having a heart attack? Thanks

Artery heart blockage mild,what are the risks of having a heart attack? Thanks

About 20% over 10y: If you have ever had a heart attack before, and you are not having major heart symptoms now, then your risk for a heart attack or stroke over the next 10 yrs is about 20%. Taking 40-80 mg of atorvastatin daily would decrease risk to about 10%. Visit my website, http://CardioGauge.com for info about calculating risk for heart attack and stroke. Good luck! ...Read more

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What are my chances of having artery blockage or a heart attack after a normal nuclear stress test?

What are my chances of having artery blockage or a heart attack after a normal nuclear stress test?

Very small : A myocardial perfusion scan done in good hands and at a good workload, i.e. Achieved > 85% max predicted heart rate that is normal bodes well for u. Typically if totally normal, your risk of an adverse cardiovascular outcome is less than 1% over next 3 years. At your young age, you ought not to get another nuclear scan if no symptoms, but rather focus on a heart heathy lifestyle. Mediterraneandiet ...Read more

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How do I reduce the risk of a heart attack via coronary artery blockage?

How do I reduce the risk of a heart attack via coronary artery blockage?

Proactive care: Big topic. Briefly: maintain healthy weight, exercise regularly, eat healthy diet, don't use tobacco, limit alcohol consumption, manage stress, have regular physicals with a physician focused on proactive care. Eval generally looks for high blood pressure, diabetes/pre-diabetes/insulin resistance, cholesterol panel. More advanced "cholesterol" testing is available and better at predicting risk. ...Read more

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I had a major heart attack in aug 2012 with 100 percent blockage in LAD and one stent is inserted please give precaution?

I had a major heart attack in aug 2012 with 100 percent blockage in LAD and one stent is inserted please give precaution?

Follow up: Need monitoring and close follow up with doctor for care.Lipid management keep LDL close to 70 or below, anti platelet agents like Plavix (clopidogrel) for 1 year , ace inhibitor like ramipril , beta blockers and exercise program. ...Read more

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I had a heart attack last week. The ECG was clear. Angiogram showed healthy arteries with no blockages. Bloodtest=0.40 of troponin.What caused it?

I had a heart attack last week. The ECG was clear. Angiogram showed healthy arteries with no blockages. Bloodtest=0.40 of troponin.What caused it?

Hard to say: Many things (including renal failure, pulmonary embolus, etc) can cause a mild elevation of troponin. If an ekg and a coronary angiogram were negative i doubt that the elevated troponin was caused by a heart attack. ...Read more

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I had a heart attack at 34, they performed a heart cath & placed a stent for a 90% blockage.What could cause this at my age?What should I do about it?

I had a heart attack at 34, they performed a heart cath & placed a stent for a 90% blockage.What could cause this at my age?What should I do about it?

Heart attack: The causes are the same regardless of your age. Strong family history, hypertension, diabetes, high cholesterol & smoking and obesity. Now you need to control these risk factors to prevent futher progression. Exercise, eat healthy, stop smoking if you do and take all your medications regularly. ...Read more

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Does vit k cause blood to thicken and cause blockage leading to a heart attack?

Does vit k cause blood to thicken and cause blockage leading to a heart attack?

No: It does impact persons on Coumadin (warfarin) and reverse that anticoagulation if indicated, to reverse due to bleeding or need surgery.
Enhanced clotting can happen. ...Read more

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How do you tell how clogged your arteries are in your heart? like the ones that if they got clogged would cause a heart attack?

Angiogram: An angiogram, in which dye is injected into the artery while x-rays are taken, is the usual way doctors look at heart arteries to see where the artery clogs are. It is not a simple procedure to do, so is only done when a patient is at a high risk of getting a heart attack or similar medical problem, or after a patient has already started having a heart attack. ...Read more

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I'm 26 and was diagnosed with "microvascular dysfunction" of the heart arteries. How is this possible at my age? Can it cause a heart attack?

I'm 26 and was diagnosed with "microvascular dysfunction" of the heart arteries. How is this possible at my age? Can it cause a heart attack?

Endothelial dysfxn : Reviewing endothelial distinction would require paragraphs and chapters, but practically it means that you really need to watch your risk factors, even at this young age. If you smoke, stop. Lose weight. Exercise regularly. Monitor blood pressure, cholesterol and blood sugar and treat if necessary. ...Read more

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Could dissolving with effective supplementation "plaque" from inflamed arteries dislodge and cause stroke or heart attack pre-maturely? %?

Could dissolving with effective supplementation "plaque" from inflamed arteries dislodge and cause stroke or heart attack pre-maturely? %?

No: Stating drugs have been shown to decrease plaque. Most OTC supplements have not been proven. If you have plaque cussing symptoms you should talk to your doctor about treatments. Don't take a chance. Dissolving plaque should not increase the risk of a stroke or vascular event. Make sure you don't risk your life/health on unproven claims. ...Read more

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Looking for causes of my unexpected heart attack in LAD at the age of 40 with only minor mural lesions in other arteries, nonsmoker, not obese, some family history but otherwise healthy individual, 45% occlusion of the LAD?

Looking for causes of my unexpected heart attack in LAD at the age of 40 with only minor mural lesions in other arteries, nonsmoker, not obese, some family history but otherwise healthy individual, 45% occlusion of the LAD?

Heart attack. : As far as how this happened, I’d gather that 45%’lesion was unstable and ruptured, causing a sudden occlusion if the LAD and a heart attack. As far as why, we’d need a real deep dive into your risk factors - blood pressure, cholesterol profile, blood sugar and such. ...Read more

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Can coronary artery disease cause problems besides causing a heart attack?

Can coronary artery disease cause problems besides causing a heart attack?

YES: Strokes and aneurysms and peripherovascular disease, renal artery disease to include some. Arteriosclerosis is a process that ends up affecting all the arteries in the body if you live long enough. ...Read more

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What could be the cause of a female 69 yr old fall without blacking out female has a stent in her heart for a blockage. Has had 1 heart attack. Has had breast cancer within the last 5 yrs. An had a breast removed an has been tested for heart problems now

What could be the cause of a female 69 yr old fall without blacking out female has a stent in her heart for a blockage. Has had 1 heart attack. Has had breast cancer within the last 5 yrs. An had a breast removed an has been tested for heart problems now

Needs more work up : This could be related to her heart and less likely her breast cancer but there are many other causes of a fall without blacking out. Breast cancer is probably the least likely but metastases to the brain can happen and may cause stroke-like symptoms that could cause a fall without passing out. However, this really is unlikely. She needs further work up. ...Read more

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Is that true that skinny people with low cholesterol can still get a heart attack with the internal wall of artery peeling and make a blockage?

Is that true that skinny people  with low cholesterol can still get a heart attack with the internal wall of artery peeling and make a blockage?

Dissecting artery.: Yes, although keeping trim and lowering cholesterol greatly reduces your risk for coronary artery disease, other things such as family history are beyond our control. What your question asks about sounds like a dissection of the coronary artery, which can happen to anyone and is quite serious. Still control those things you can: don't smoke, exercise, and eat right. ...Read more

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My dad is 60 he had a heart attack involving 3 coronary arteries with a total of 9 blockages. He had stents put in. Any ideas on his life expectancy?

My dad is 60 he had a heart attack involving 3 coronary arteries with a total of 9 blockages. He had stents put in. Any ideas on his life expectancy?

Good prognosis: If his left ventricular function is normal and if he follows the instructions of his doctors (no smoking, statin, dual anti-platelet therapy, blood pressure control, good diet, exercise), he can live a normal life expectancy and pass on at home in his sleep at a very advanced age. ...Read more

Dr. Creighton Wright
1,181 doctors shared insights

Myocardial Infarction (Definition)

Myocardial Infarction means some of the heart muscle dies because of insufficient oxygen supply. Most often this occurs because the coronary artery is blocked by plaque & clot. Other causes include tears in the artery wall, extremely high oxygen demand (eg, rapid arrhythmia, heart valve disorder, or severe systemic illness.) Prompt treatment can minimize heart damage & ...Read more


Dr. Creighton Wright
3,966 doctors shared insights

Heart Attack (Definition)

A life-threatening condition in which the blood vessels that supply the heart becomes occluded and thus the heart itself is not longer receiving any blood flow. Without this blood flow, the heart muscle dies and cannot pump blood to the ...Read more