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Topic: Heart attack


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In the News (Sun 26 May 19)

  
  What Is A Heart Attack?
The term "heart attack" is often used to refer to signs and symptoms that result from the sudden blockage of blood flow to a portion of the heart.
Heart attack is the common term for a "myocardial infarction." This refers to the permanent damage done to the heart muscle, or myocardium, when blood flow is blocked.
Coronary heart disease develops when one or more of the coronary arteries that supply the blood to the heart become narrower than they used to be, due to the buildup of cholesterol and other substances in the wall of the artery, affecting the blood flow to the heart muscle.
www.ehealthmd.com /library/heartattack/HA_whatis.html   (983 words)

  
  Myocardial infarction - Wikipedia, the free encyclopedia
The underlying mechanism of a heart attack is the destruction of heart muscle cells due to a lack of oxygen.
Heart attacks rates are higher in association with intense exertion, be it stress or physical exertion, especially if the exertion is unusually more intense than the individual usually performs.
A heart attack, especially because of cardiac arrhythmias, is often a life-threatening medical emergency which demands both immediate attention and activation of the emergency medical services.
en.wikipedia.org /wiki/Heart_attack   (2362 words)

  
 Heart Attack
A heart attack, clinically known as a myocardial infarction, occurs when an artery supplying the heart with blood carrying oxygen and nutrients suddenly becomes blocked, causing part of the heart muscle to die [Figure 1].
A heart attack can leave your heart much weaker and less able to pump blood around to the rest of your body, as a portion of the muscle has died and is no longer functioning as well.
Severe chest pain is the most frequent symptom of a heart attack, although it is possible to be having a heart attack and not have chest pain at all.
www.pdrhealth.com /patient_education/BHG01CA12.shtml   (3818 words)

  
 What Is a Heart Attack?
Heart attack is a leading killer of both men and women in the United States.
Heart attacks occur most often as a result of a condition called coronary artery disease (CAD).
Heart failure is a condition in which the heart can’t pump enough blood throughout the body.
www.nhlbi.nih.gov /health/dci/Diseases/HeartAttack/HeartAttack_WhatIs.html   (638 words)

  
 Heart Attack (myocardial infarction) by MedicineNet.com
A heart attack (also known as a myocardial infarction) is the death of heart muscle from the sudden blockage of a coronary artery by a blood clot.
Coronary heart diseases include heart attacks, sudden unexpected death, chest pain (angina), abnormal heart rhythms, and heart failure due to weakening of the heart muscle.
Approximately 50% of patients who develop heart attacks have warning symptoms such as exertional angina or rest angina prior to their heart attacks, but these symptoms may be mild and discounted.
www.medicinenet.com /heart_attack/article.htm   (1407 words)

  
 Heart Attack: Warning Signs and Tips on Prevention -- familydoctor.org   (Site not responding. Last check: )
A heart attack (also called myocardial infarction) is when part of the heart muscle is damaged or dies because it isn't receiving oxygen.
Heart attacks can also be caused by a blood clot that gets stuck in a narrow part of an artery to the heart.
Sex--More males have heart attacks, although heart disease is the leading cause of death for American women.
familydoctor.org /handouts/291.html   (697 words)

  
 Heart Attack - Texas Heart Institute Heart Information Center
For some people, a heart attack feels like a burning sensation, similar to indigestion or heartburn, and the pain may be in only a small area of the chest.
The goals of heart attack treatment are to return blood flow to your heart muscle, bring back a regular heartbeat, and give your heart time to recover.
Heart attack patients may also receive aspirin and blood-thinning medicines (anticoagulants) to stop clots from forming or growing in size.
texasheart.org /HIC/Topics/Cond/HeartAttack.cfm   (1577 words)

  
 HeartAttack | Heart Attack Symptons | Heart Attack Causes
It occurs when a part of the heart muscle is injured, and this part may die because of sudden total interruption of blood flow to the area.
The most important treatment in myocardial infarction is restoring the blood flow to the heart, by thrombolysis (enzymatically dissolving the clot in the artery) and/or angioplasty (using a balloon to push the artery open).
The phrase "heart attack" is occasionally used to refer to heart problems other than a myocardial infarction, such as unstable angina pectoris.
www.highbloodpressurecontrol.com /heart_attack.html   (604 words)

  
 Heart Attack
A heart attack is damage to the heart caused by lack of oxygen to the heart muscle as a result of coronary artery disease.
A heart attack is caused when one or more of the coronary arteries that supply blood to heart become completely blocked and blood to the heart muscle is cut off.
The inferior part of the heart is the bottom, which rests on the diaphragm (the layer of muscle that separates the abdomen from the chest).
www.hmc.psu.edu /healthinfo/h/heartattack.htm   (1044 words)

  
 Heart Attack - Symptoms and Warning Signs
Heart muscle pain - angina - is likely to be the first warning of blocked coronary arteries, the cause of most heart attacks.
Even a heart attack may not be unbearably painful at first, permitting its victim to delay seeking treatment for as much as four to six hours after its onset.
A heart attack is simply the most extreme state of oxygen deprivation, in which whole regions of heart muscle cells begin to die for lack of oxygen.
www.heartinfo.org /hrtatkang.html   (1219 words)

  
 Heart Attack   (Site not responding. Last check: )
A heart attack occurs when one of the arteries supplying blood to the heart muscle (the coronary arteries) is blocked.
As heart cells cannot reproduce, heart muscle damage inflicted during a heart attack is permanent.
In the period after a heart attack, either angioplasty or coronary artery bypass surgery may be performed to improve the blood supply to the heart muscle depending on your specific condition.
www.centenarycardiology.com /Conditions/Heart_Attack.htm   (1552 words)

  
 Heart attack definition - Medical Dictionary definitions of popular medical terms
The electrical instability of the heart causes ventricular fibrillation (chaotic electrical disturbances affecting the ventricles, the lower chambers of the heart).
The treatment of a heart attack may include the prompt administration of drugs to dissolve and prevent blood clots; an angioplasty or intracoronary stenting to open an obstructed artery; and medications that open (dilate) blood vessels.
Patients suffering a heart attack are usually hospitalized for several days to detect heart rhythm disturbance, and observe for shortness of breath and chest pain.
www.medterms.com /script/main/art.asp?articlekey=3669   (558 words)

  
 Heart attack
A heart attack is the death of, or damage to, part of the heart muscle because the supply of blood to the heart muscle is severely reduced or stopped.
The outcome of a heart attack also depends on where the blockage is, whether the heart rhythm is disturbed, and whether another coronary artery supplies blood to that part of the heart.
People who survive a heart attack have a chance of sudden death that is four to six times greater than others and a chance of illness and death that is two to nine times greater.
www.healthatoz.com /healthatoz/Atoz/ency/heart_attack.jsp   (3611 words)

  
 DHMC Cardiology | Conditions | Heart Attack
A heart attack (myocardial infarction) happens when fatty buildup or a blood clot blocks the flow of blood and oxygen to the heart muscle.
Heart attack symptoms in women may be different from those in men.
Most heart attacks are caused by a blood clot that blocks an artery bringing blood and oxygen to the heart.
www.dartmouth.edu /~cardio/Patients/conditions/con_heartattack.html   (649 words)

  
 Heart attack
A heart attack (myocardial infarction) occurs when an area of heart muscle dies or is permanently damaged because of an inadequate supply of oxygen to that area.
Most heart attacks are caused by a clot that blocks one of the coronary arteries (the blood vessels that bring blood and oxygen to the heart muscle).
A clot in the coronary artery interrupts the flow of blood and oxygen to the heart muscle, leading to the death of heart cells in that area.
www.umm.edu /ency/article/000195.htm   (551 words)

  
 Heart Attack - Signs, Symptoms, and What to Do - CardiologyChannel
The heart is a complex, highly specialized, muscular organ in the chest that maintains the circulation of blood throughout the body.
Heart attack, or acute myocardial infarction, is the death of heart tissue caused by a complete blockage in one of the arteries that supply blood to the heart (coronary arteries), resulting in an interruption in the blood supply to the heart.
In some cases, heart attack is caused by a severe spasm (contraction) in a coronary artery.
cardiologychannel.com /heartattack   (814 words)

  
 Heart Attack   (Site not responding. Last check: )
A heart attack (also called a myocardial infarction) is the death of part of the heart muscle due to its sudden loss of blood supply.
A heart attack is caused by the formation of a blood clot on a cholesterol plaque located on the inner wall of an artery to the heart (coronary artery).
Heart attacks frequently occur from 4:00 A.M. to 10:00 A.M. due to higher adrenaline amounts released from the adrenal glands during the morning hours.
www.brucemindich.com /heart_attack.htm   (1497 words)

  
 Heart Attack
Heart attack is caused by sudden loss of blood and oxygen to your heart.
The most common condition that predisposes a person to heart attack is coronary heart disease, or coronary artery disease, due to atherosclerosis, or fatty build up of plaque on the inner lining of coronary arteries.
Recognizing the symptoms of a heart attack and seeking immediate medical attention may mean the difference between life and death.
www.emedicinehealth.com /heart_attack/article_em.htm   (727 words)

  
 Heart attack - CNN.com
Another uncommon cause of a heart attack is a spasm of a coronary artery that shuts down blood flow to part of the heart muscle.
Heart failure may be a temporary problem that remedies itself after your heart, which has been stunned by a heart attack, recovers over a few days to weeks.
Once you reach a hospital emergency room and it's clear you're having a heart attack, you may be treated with medications, undergo a surgical procedure or both — depending on the severity of your condition and the amount of damage to your heart.
www.cnn.com /HEALTH/library/DS/00094.html   (5079 words)

  
 Heart Attack and Unstable Angina-Overview
A heart attack occurs when blood flow to the heart is blocked.
A heart attack doesn't have to be deadly.
Heart attacks happen when blood flow to the heart is blocked.
www.webmd.com /heart-disease/tc/heart-attack-and-unstable-angina-overview   (641 words)

  
 Heart Attack: Warning Signs and Tips on Prevention -- familydoctor.org
A heart attack (also called myocardial infarction) is when part of the heart muscle is damaged or dies because it isn't receiving oxygen.
Heart attacks can also be caused by a blood clot that gets stuck in a narrow part of an artery to the heart.
Sex--More males have heart attacks, although heart disease is the leading cause of death for American women.
www.familydoctor.org /291.xml   (697 words)

  
 Heart Attack - Signs, Symptoms, and What to Do - cardiologychannel
The heart is a complex, highly specialized, muscular organ in the chest that maintains the circulation of blood throughout the body.
Heart attack, or acute myocardial infarction, is the death of heart tissue caused by a complete blockage in one of the arteries that supply blood to the heart (coronary arteries), resulting in an interruption in the blood supply to the heart.
According to the American Heart Association, coronary heart disease (CHD) is the leading cause of death in the United States; and, in adults, heart attacks cause 1 out of every 5 deaths.
www.cardiologychannel.com /heartattack   (1098 words)

  
 Heart Attack and Angina
A heart attack, or myocardial infarction, occurs when the blood supply to part of the heart muscle itself (the myocardium) is severely reduced or stopped.
The actual diagnosis of a heart attack must be made by a physician who has studied the results of several tests.
Anyone experiencing the warning signals of a heart attack should be taken immediately to the nearest hospital with 24-hour emergency cardiac care.
www.medhelp.org /lib/attackan.htm   (1760 words)

  
 Heartattacks | Heart attack warning | Heartattackcom | Heart attack causes
The most common cause of heart attack by far is atherosclerosis, a gradual buildup of cholesterol and fibrous tissue in plaques in the wall of arteries (in this case, the coronary arteries), typically over decades.
Heart attacks rates are higher in association with intense exertion, be it psychological stress or physical exertion, especially if the exertion is more intense than the individual usually performs.
One observed mechanism for this phenomenon is the increased arterial pulse pressure stretching and relaxation of arteries with each heart beat which, as has been observed with intravascular ultrasound, increases mechanical "shear stress" on atheromas and the likelihood of plaque rupture.
www.heartattackwarning.com /causes-of-heart-attack.html   (305 words)

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