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Topic: Infarction

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Ischemic heart disease

Ischemia

Angina

Myocardial infarction

Heart attack

Necrosis

Sickle cell anaemia

Hemostasis

Ventricular tachycardia

Atheroma

Ventricular fibrillation

Coagulation

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	Infarction - Wikipedia, the free encyclopedia
		Although infarction can affect any organ in the context of a number of disease states, it is most closely associated with atherosclerosis.
		Infarctions are arbitrarily divided into two types – white (anemia) and red (hemorrhagic).
		The type of infarction is determined by the amount of hemorrhaging present.
	en.wikipedia.org /wiki/Infarction (193 words)

	Myocardial infarction - Wikipedia, the free encyclopedia
		A myocardial infarction occurs when an atherosclerotic plaque slowly builds up in the inner lining of a coronary artery and then suddenly ruptures, totally occluding the artery and preventing blood flow downstream.
		The term myocardial infarction is derived from myocardium (the heart muscle) and infarction (tissue death due to oxygen starvation or ischemia).
		Acute myocardial infarction is usually characterized by varying degrees of chest pain, discomfort, sweating, weakness, nausea, vomiting, and arrhythmia, sometimes causing loss of consciousness and even sudden death.
	en.wikipedia.org /wiki/Myocardial_infarction (3501 words)

	infarction. The Columbia Encyclopedia, Sixth Edition. 2001-05
		Infarctions commonly occur in the spleen, kidney, lungs, brain, and heart.
		The seriousness of the infarction is dependent upon the amount of heart muscle affected, how long the area is deprived of blood, and whether it affects the natural pacemaker of the heart, setting off arrhythmias such as ventricular fibrillation.
		Confirmation of myocardial infarction is made by electrocardiography and measurement of elevations of white blood cells and certain enzymes.
	www.bartleby.com /65/in/infarcti.html (320 words)

	Myocardial infarction - Wikipedia, the free encyclopedia
		Many cases of myocardial infarction are identified by ambulance staff, emergency room doctors and cardiac specialist nurse practitioners quickly.
		Other, often smaller myocardial infarctions sometimes are not recognized by victims, never receive medical attention, and can result in heart weakness and other complications.
		A person who has suffered from a myocardial infarction may be prevented from participating in activity that puts other people's lives at risk, eg driving a car or airplane.
	en.wikipedia.org /wiki/Heart_attack (3501 words)

	Dorlands Medical Dictionary
		infarction localized to the left ventricular free wall between the interventricular groove and the lateral margin of the anterior papillary muscle.
		infarction in the region between the lateral margin of the anterior papillary muscle and the lateral margin of the posterior papillary muscle; it is marked electrocardiographically by abnormal Q waves in leads I, aV
		infarction localized to the inner one third to one half of the myocardial wall; sometimes described as nontransmural myocardial infarction.
	www.mercksource.com /pp/us/cns/cns_hl_dorlands.jspzQzpgzEzzSzppdocszSzuszSzcommonzSzdorlandszSzdorlandzSzdmd_i_07zPzhtm (3761 words)

	RedOrbit - Health - Diabetic Muscle Infarction of the Peroneus Brevis: a Case Report
		Diabetic muscle infarction of the peroneus brevis is a rare complication of diabetes mellitus.
		Diabetic muscle infarction was first described in 1965 by Angervall and Stener.1 It is a rare complication of diabetes and a sign of underlying vascular disease.
		Diabetic muscle infarction is a rare and easily misdiagnosed disease that occurs in patients on insulin therapy.
	www.redorbit.com /news/health/396347/diabetic_muscle_infarction_of_the_peroneus_brevis_a_case_report/index.html?source=r_health' (1279 words)

	Myocardial infarction - Voyager, the free encyclopedia (Site not responding. Last check: 2007-10-31)
		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).
		Acute myocardial infarction is usually characterized by varying degrees of chest pain or discomfort, weakness, sweating, nausea, vomiting, and arrhythmias, sometimes causing loss of consciousness.
		the theory that myocardial infarction is due to thrombosis in the coronary artery.
	www.voyager.in /Heart_attack (2544 words)

	Myocardial Infarction
		Occlusive intracoronary thrombus - a thrombus overlying an ulcerated or fissured stenotic plaque causes 90% of transmural acute myocardial infarctions.
		Acute myocardial infarction with rupture and tamponade, gross.
		Cardiac troponin I in the diagnosis of myocardial injury and infarction.
	www-medlib.med.utah.edu /WebPath/TUTORIAL/MYOCARD/MYOCARD.html (1837 words)

	biology - Myocardial infarction
		Acute myocardial infarction (AMI or MI), commonly known as a heart attack, is a serious, sudden heart condition characterized by varying degrees of chest pain or discomfort, weakness, sweating, nausea, and vomiting, sometimes causing loss of consciousness.
		The medical term myocardial infarction comes from "myo" referring to muscle, "cardium" referring to the heart (myocardium is the heart muscle) and "infarction" meaning tissue death, in this case caused by an obstruction of blood flow.
		The main symptom of myocardial infarction is most commonly central chest discomfort, which is present in about 2/3 of all cases.
	www.biologydaily.com /biology/Myocardial_infarction (2104 words)

	Myocardial Infarction
		The main cause of myocardial infarction is atherosclerosis in the coronary arteries.
		The traditional concept that myocardial infarctions can be classified as transmural or nontransmural on the basis of the presence or absence of Q waves is misleading, since autopsy studies have demonstrated convincingly that pathologic Q waves may be associated with nontransmural infarction and may be absent with transmural infarction.
		The evolution of a non-Q-wave infarction is charcterized by a lack of development of an abnormal Q wave and by the appearance of reversible ST-T-wave changes with ST depression that usually returns to normal over a few days, but occasionally is permanent.
	www.rjmatthewsmd.com /Definitions/myocardial_infarction.htm (11222 words)

	Complications of Acute Myocardial Infarction -- Print Version
		Infarction in a separate territory (recurrent infarction) may be difficult to diagnose in the first 24 to 48 hours after the initial event.
		Peripheral emboli cause limb ischemia, renal infarction, or mesenteric ischemia.
		Significance of Doppler-detected mitral regurgitation in acute myocardial infarction.
	www.clevelandclinicmeded.com /diseasemanagement/cardiology/complications/complications1.htm (7249 words)

	Myocardial Infarction
		post transmural infarction there are fibrin and inflammation of the pericardial sac due to the myocardial injury.
		"post myocardial infarction syndrome" due to autoimmune reaction between autoantibody and antigens produced by the necrotic tissues.
		transmural septal infarction may cause rupture of the intraventricular septum with left-to-right shunt.
	www.geocities.com /baddarni/Myocardial-Infarction.html (1560 words)

	Infarction definition - Medical Dictionary definitions of popular medical terms
		Infarction: The formation of an infarct, an area of tissue death due to a local lack of oxygen.
		For example, in a myocardial infarction there is death of myocardial (heart muscle) tissue due to sudden (acute) deprivation of circulating blood.
		This is usually caused by arteriosclerosis with narrowing of the coronary arteries, the culminating event being a thrombosis (clot).
	www.medterms.com /script/main/art.asp?articlekey=3970 (159 words)

	Acute Myocardial Infarction
		Myocardial infarction occurs when myocardial ischemia exceeds a critical threshold and overwhelms myocardial cellular repair mechanisms that are designed to maintain normal operating function and hemostasis.
		Myocardial infarction can be subcategorized on the basis of anatomic, morphologic, and diagnostic clinical information.
		Myocardial infarction is the leading cause of death in the United States (US) as well as in most industrialized nations throughout the world.
	www.clevelandclinicmeded.com /diseasemanagement/cardiology/acutemi/acutemi.htm (5049 words)

	eMedicine - Spinal Cord Infarction : Article by Edward Hogan, MD (Site not responding. Last check: 2007-10-31)
		Uncomplicated spinal cord infarction is most commonly thoracic (with peak at T8 in the series reported by Cheshire [1996]), and presents as acute paraparesis or paraplegia, numbness of the legs, and inability to void.
		The pathologies associated with spinal cord infarction are numerous and include neoplasm, spinal epidural or subdural abscess, granuloma, spinal epidural or subdural hematoma, extramedullary spinal tumor (including meningioma, neurofibroma, extradural lymphoma, metastasis), and herniated intervertebral disk.
		Spinal cord ischemia (and its irreversible tissue injury of infarction) is a myelopathy, generally associated with substantial motor, sensory, and bladder and/or bowel dysfunction.
	www.emedicine.com /NEURO/topic348.htm (4893 words)

	Imaginis - Heart Disease - Myocardial Infarction (Heart Attack)
		Myocardial infarction (heart attack) is a serious result of coronary artery disease.
		Myocardial infarction occurs when a coronary artery is so severely blocked that there is a significant reduction or break in the blood supply, causing damage or death to a portion of the myocardium (heart muscle).
		In addition to atherosclerosis, myocardial infarction may result from a temporary contraction or spasm of a coronary artery.
	www.imaginis.com /heart-disease/heartattack.asp (823 words)

	NGC - NGC Summary
		A posterior infarction is, however, often inferoposterior and, in addition to ST segment depression, ST segment elevations are found in leads III and aVF.
		Atrial fibrillation (AF) in a patient with infarction is often associated with cardiac insufficiency and it worsens the prognosis.
		In anterior wall infarction, the proximal conduction system may be blocked: the QRS complex is wide, the substituting rhythm is slow (30 to 40), the patient is in a poor condition, and pacing is necessary.
	www.guideline.gov /summary/summary.aspx?view_id=1&doc_id=9007 (4583 words)

	Postgraduate Medicine: Cerebral infarction and transient ischemic attacks
		CT findings are often normal in patients with acute ischemic symptoms, but infarction may evolve over the course of 6 to 48 hours in patients with persistent deficits.
		Carotid disease is responsible for 30% of cerebral infarctions or TIAs in the anterior circulation (10).
		Transesophageal echocardiography should be done in young patients with cryptogenic stroke or with TIA or cerebral infarction in multiple arterial distributions and in patients with history, physical examination, or routine test findings suggestive of cardiac disease (25).
	www.postgradmed.com /issues/2000/05_00/flemming.htm (4399 words)

	Myocardial Infarction : by Ray Sahelian, M.D., Natural Treatment for Myocardial Infaction
		In an acute myocardial infarction, the flow of blood from a blood vessel in the heart is blocked, whereby the cardiac muscle receives insufficient oxygen and heart tissue dies.
		The most common symptom of acute myocardial infarction is chest pain described as a pressure sensation, fullness, or squeezing in the midportion of the thorax.
		A life-threatening problem that may happen during and after a myocardial infarction is arrhythmias.
	www.raysahelian.com /myocardialinfarction.html (864 words)

	Spinal Cord Infarction Information Page: National Institute of Neurological Disorders and Stroke (NINDS)
		Spinal cord infarction is a stroke either within the spinal cord or the arteries that supply it.
		It is caused by arteriosclerosis or a thickening or closing of the major arteries to the spinal cord.
		Symptoms, which generally appear within minutes or a few hours of the infarction, may include intermittent sharp or burning back pain, aching pain down through the legs, weakness in the legs, paralysis, loss of deep tendon reflexes, loss of pain and temperature sensation, and incontinence.
	www.ninds.nih.gov /disorders/spinal_infarction/spinal_infarction.htm (415 words)

	Pituitary infarction
		Pituitary infarction is the death of an area of tissue in the pituitary gland, a small gland joined to the hypothalamus (part of the brain).
		Pituitary infarction is most commonly caused by bleeding into a benign tumor of the pituitary, which kills an area of tissue in the pituitary gland.
		Risk factors for pituitary infarction include diabetes, bleeding disorders, head trauma, pituitary radiation, and use of a breathing machine.
	www.umm.edu /ency/article/001167.htm (285 words)

	Right Ventricular Infarction
		Right ventricular infarction occurs when there is an occlusion of the right coronary artery proximal to the acute marginal branches, but it may also occur with an occlusion of the left circumflex artery in patients who have left-dominant coronary circulation
		Since hemodynamically important right ventricular infarction typically occurs in patients with an acute inferior myocardial infarction, suspicion is warranted in any patient presenting with such an infarction.
		When inferior myocardial infarction is complicated by right ventricular infarction, however, the in-hospital mortality may be as high as 31 percent, as compared with 6 percent for patients with inferior myocardial infarction and no right ventricular involvement.
	www.4um.com /tutorial/icm/rvi.htm (1623 words)

	Postgraduate Medicine: Myocardial Infarction Symposium: Management of acute myocardial infarction
		Perhaps the newest and most important message to be found in the updated acute myocardial infarction guidelines relates to the fact that of the 900,000 people in the United States who experience acute myocardial infarction each year, about 20% die before reaching the hospital and 30% die within 30 days.
		Initial evaluation of acute myocardial infarction should be accomplished within 10 minutes of the patient's arrival in the emergency department and should include thoughtful history taking conducted without haste.
		In addition, the diagnosis of acute myocardial infarction should be confirmed with serial ECGs and measurements of serum cardiac markers of myo cyte necrosis (eg, creatine kinase isoenzymes, cardiac-specific troponin T or I).
	www.postgradmed.com /issues/1997/11_97/ryan.htm (3479 words)

	Medcyclopaedia - Infarction
		In sickle cell anaemia, diaphyseal infarction of larger tubular bones, especially in the proximal aspect of the femur, is common.
		Radiographically, bone infarction appears initially as a linear radiodense shadow adjacent to the cortex, which may extend along the entire shaft.
		Skeletal muscle infarction attributable to atherosclerosis obliterans may occur in diabetes mellitus.
	www.medcyclopaedia.com /library/topics/volume_iii_1/i/infarction.aspx (360 words)

	Medical Dictionary: Myocardial infarction - WrongDiagnosis.com
		The underlying cause of a heart attack is usually "coronary thrombosis", which is a blockage of the blood vessels of the heart.
		Myocardial infarction: Presence of a thrombus in a coronary artery, often causing a myocardial infarction.
		Myocardial infarction : gross necrosis of the myocardium, as a result of interruption of the blood supply to the area.
	www.wrongdiagnosis.com /medical/myocardial_infarction.htm (625 words)

	infarction
		The seriousness of the infarction is dependent upon the amount of heart muscle affected, how long the area is deprived of blood, and whether it affects the natural pacemaker of the heart, setting off
		myocardial infarction - myocardial infarction: see under infarction.
		Managing patients with myocardial infarction after hospital discharge.
	www.infoplease.com /ce6/sci/A0825183.html (336 words)

	eMedicine - Myocardial Infarction : Article by Drew E Fenton, MD (Site not responding. Last check: 2007-10-31)
		Background: Myocardial infarction (MI) is the rapid development of myocardial necrosis caused by a critical imbalance between the oxygen supply and demand of the myocardium.
		Systolic BP 100, and RV infarction are a contraindications to nitrate use.
		Alpert JS, Thygesen K, Antman E, Bassand JP: Myocardial infarction redefined--a consensus document of The Joint European Society of Cardiology/American College of Cardiology Committee for the redefinition of myocardial infarction.
	www.emedicine.com /emerg/topic327.htm (9422 words)

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