Doctor insights on:
Can 50 Percent Blockage Of Artery Cause Heart Attack
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
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
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
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
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
Can I ride a roller coaster 3 years after having a heart attack due to blockage of the right coronary artery and getting stents implanted?
Enjoy ride: Hope you are not doing the tallest and fastest roller coaster. ...Read more
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 heart attack last week. The ECG was clear. Angiogram showed healthy arteries with no blockages. Bloodtest=0.40 of troponin.What caused it?
Can a heart attack to occur resulting from a cause other than plaque build up in the heart arteries (e.G., muscular compression of arteries)?
Yes: Coronary bridging and coronary spasm are well documented ethiologies for some myocardial infarcts. ...Read more
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
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
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
What would cause the plaque in heart arteries to SUDDENLY rupture then form a clot then cause a Heart Attack? what are the reasons behind rupturing? Thank you.
Good summary article:
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
If a 90 yr old was taken off of Coumadin (warfarin) 5 weeks ago and then had a heart attack, could that cause blockage in the heart that caused heart attack?
MI: At age 90 can't blame a heart attack simply on any cause. Withdrawal of warfarin is a possible contributor to a heart attack. ...Read more
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?
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
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
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
But very unusual.
Congenital anomaly with atypical origin and ischemia.
Dissection of aorta with coronary obstruction by flap.
Coronary embolism with atrial fibrillation, or septal defect and paradoxical embolus.
other cause of hypoxia ( and also usually damages brain.
Trauma with tear of heart or stab etc
whew that' s enough bad news! ...Read more
Why is it that a 100% blocked artery is not reopened if the heart attack was more than 48 hours old?
It's too late : Re-perfusion of an area that has 100% occlusion for more than 48 h will not revitalize the muscle. That part is dead already. ...Read more
Is it possible for enzymes to go up after heart attack and not sustain damage bc not total blockage?
Cardiac enzymes : Rise in cardiac enzymes is a sign of heart muscle cells dying. Depending on the extent of damage, this may or may not result in significant change or impairment in overall cardiac function. ...Read more
My dad 53 years had angioplasty in 3 arteries last year after heart attack, is there probability of heart attack recurrence?
Yes; permanent chanc: One of the biggest risk factors for a heart attack in the future is having experienced a heart attack already. Thus, once you have a heart attack, you confirm that you have atherosclerosis (thickening of the vessel walls), and that leads to (9) a permanent increease in risk. ...Read more
Can you live a fully functional life with angina and artery disease and never have a heart attack? Or will you eventually succumb?
My 91 yo uncle has a mild heart attack sat. He has moderate to severe blockage. Should we have the angioplasty? He's been in excellent health.
Yes: If doable it should be done.Get a more detailed answer ›
And if shows up a a nuclear pet scan and there is no blockage after a cardio cat. What could be done to prevent problems(heart attack, or worse?
Good diet & exercise: Your PET scan shows no trouble today (good!) but don't confuse medical tests with a crystal ball (as many folks do) - they're not able to predict the future. To assure continued good health, you must minimize your risk factors: no smoking, normal weight, daily exercise, no recreational drugs esp cocaine/amphetamines, minimal alcohol. ...Read more
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