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Topic: Pulmonary embolism

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Air embolism

International normalized ratio

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Computed axial tomography

	Pulmonary embolism - Wikipedia, the free encyclopedia
		A pulmonary embolism (thromboembolism) occurs when a blood clot, generally a venous thrombus, becomes dislodged from its site of formation and embolizes to the arterial blood supply of one of the lungs.
		Pulmonary angiography is used less often because of wider acceptance of CT scans, which are non-invasive.
		Chronic pulmonary embolism leading to pulmonary hypertension (known as chronic thromboembolic hypertension) is treated with a surgical procedure known as a pulmonary thromboendarterectomy.
	en.wikipedia.org /wiki/Pulmonary_embolism (1272 words)

	Pulmonary embolism
		Pulmonary embolism is an obstruction of a blood vessel in the lungs, usually due to a blood clot, which blocks a coronary artery.
		Pulmonary embolism is caused by emboli that travel through the blood stream to the lungs and block a pulmonary artery.
		Pulmonary angiography is the most reliable test for diagnosing pulmonary embolism but it is not used often, because it carries some risk and is expensive, invasive, and not readily available in many hospitals.
	www.healthatoz.com /healthatoz/Atoz/ency/pulmonary_embolism.jsp (1209 words)

	Medical Breakthroughs - Learn More About Diabetes (Site not responding. Last check: 2007-11-07)
		A pulmonary embolism is a blockage of a pulmonary artery (major blood vessel in the lung) by a fragment of material.
		Pulmonary embolism is diagnosed in about 500,000 persons each year in the United States, resulting in about 200,000 deaths.
		In a pulmonary embolism, the area of the lung that is supplied by the blocked artery tends to have little or no detectable radioactivity.
	www.drkoop.com /encyclopedia/43/497.html (1648 words)

	Pulmonary Embolism: Merck Manual Home Edition
		Pulmonary embolism is the sudden blocking of an artery of the lung (pulmonary artery) by an embolus—usually a blood clot (thrombus).
		A large pulmonary embolism may be relatively easy for a doctor to diagnose, especially when there are obvious preconditions, such as signs of a blood clot in a leg.
		Pulmonary angiography (see Symptoms and Diagnosis of Lung Disorders: Chest Imaging) is an accurate means of diagnosing pulmonary embolism, but it poses some risk and is more uncomfortable than the other tests.
	www.merck.com /mmhe/sec04/ch046/ch046a.html (2455 words)

	Pulmonary Embolism, What Is..., NHLBI DCI
		A pulmonary embolism (PULL-mun-ary EM-bo-lizm) is a sudden blockage in a lung artery, usually due to a blood clot that traveled to the lung from the leg.
		In most cases, pulmonary embolism is a complication of a condition called deep vein thrombosis (DVT).
		Pulmonary embolism is one of the most common causes of death in hospitalized people who must remain in bed for a long time.
	www.nhlbi.nih.gov /health/dci/Diseases/pe/pe_what.html (233 words)

	Postgraduate Medicine: Early intervention in massive pulmonary embolism
		Massive pulmonary embolism is defined as pulmonary embolism accompanied by hypotension or shock, severe hypoxemic respiratory failure, acute right-sided heart dysfunction, or obstruction of the pulmonary vasculature that exceeds 50% as demonstrated by angiogram or ventilation-perfusion (V/Q) scan.
		Pulmonary embolism causes profound alterations in hemodynamics and gas exchange, the extent of which depends on the severity of pulmonary vascular obstruction and the prior state of the heart and lungs.
		Pulmonary angiography is diagnostic in nearly all patients with massive pulmonary embolism and typically shows pulmonary vascular obstruction of at least 50% to 60%.
	www.postgradmed.com /issues/2002/03_02/gossage1.htm (4218 words)

	Pulmonary Embolism
		An embolism is a blood clot that breaks off from the wall of a vein and travels with the blood to other organs in the body.
		Pulmonary embolism is a blood clot that lodges in the lungs and blocks the lung arteries so the flow of blood to the lungs and heart is reduced.
		Pulmonary angiogram is the most accurate way to diagnose pulmonary embolism, but it does carry some health risks and is more uncomfortable than the other tests.
	www.hmc.psu.edu /healthinfo/e/embolism.htm (815 words)

	AllRefer Health - Pulmonary Embolus (Air Embolus, Fat Embolus, Lung Blood Clot, Tumor Embolus, Venous Thrombo-Embolism)
		A pulmonary embolus is a blockage of an artery in the lungs by fat, air, clumped tumor cells, or a blood clot.
		Pulmonary emboli are blockages of the blood vessels of the lungs (pulmonary vessels).
		The most common cause of a pulmonary embolism is a blood clot in the veins of the legs, called a deep vein thrombosis (DVT).
	health.allrefer.com /health/pulmonary-embolus-info.html (397 words)

	THE MERCK MANUAL, Sec. 6, Ch. 72, Pulmonary Embolism
		Pulmonary embolism: Sudden lodgment of a blood clot in a pulmonary artery with subsequent obstruction of blood supply to the lung parenchyma.
		The primary mechanism of increased resistance is obstruction of pulmonary arteries by thrombi, ie, a decrease in the total cross-sectional area of the pulmonary vascular bed.
		PI is sometimes due to thrombosis of the pulmonary arteries in situ, as may occur in congenital heart disease associated with severe pulmonary hypertension or in hematologic disorders (eg, sickle cell disease).
	www.merck.com /pubs/mmanual/section6/chapter72/72a.htm (4570 words)

	Pulmonary embolism
		The symptoms of pulmonary embolism can vary greatly, depending on how much of your lung is involved, the size of the clot and your overall health — especially the presence or absence of underlying lung or heart disease.
		Although pulmonary embolism is a leading cause of hospital deaths, it's also a serious problem for nursing home residents, who are likely to have a number of risk factors for DVT, as well as for people immobilized at home.
		Pulmonary embolism is the most frequent cause of death associated with childbirth.
	www.cnn.com /HEALTH/library/DS/00429.html (3876 words)

	Pulmonary Embolism Misdiagnosis \| Ohio Medical Malpractice Attorney OH Cleveland Columbus Toledo
		Pulmonary Embolism is estimated to be one of the leading causes of preventable deaths during hospitalization.
		In most cases, the blood clot that causes pulmonary embolism is formed in the large veins of the leg.
		If you or a family member has been affected by pulmonary embolism resulting in death or serious injury, and you feel a medical professional should have recognized the symptoms, medical negligence may be at fault.
	www.lancionelaw.com /PracticeAreas/Pulmonary_Embolism.asp (459 words)

	Joint Program in Nuclear Medicine
		The natural and scintigraphic history of pulmonary embolism is quite variable in terms of rate and degree of resolution in both the early and late stages.
		There are approximately 630,000 cases of pulmonary embolism in the US each year, with an 11% mortality rate in the first hour.
		Pulmonary angiography and the diagnosis of pulmonary embolism.
	www.med.harvard.edu /JPNM/TF94_95/Nov15/WriteUpNov15.html (827 words)

	Medem: Medical Library: JAMA Patient Page Pulmonary Embolism
		A pulmonary embolism is a blockage in an artery in the lungs caused by an embolus (a free-floating blood clot) that travels through the blood vessels (usually from a vein in a leg or in the pelvic area) to the lungs.
		Pulmonary embolism causes damage to lung tissue, disrupts the proper functioning of the damaged lung, and can cause death.
		The symptoms of pulmonary embolism depend on a number of factors, including the location of the blockage and the size of the area affected by the lack of blood supply.
	www.medem.com /medlb/article_detaillb.cfm?article_ID=ZZZDQHMZUIC&sub_cat=575 (452 words)

	eMedicine - Pulmonary Embolism : Article by Sat Sharma, MD, FRCPC, FACP, FCCP, DABSM (Site not responding. Last check: 2007-11-07)
		Pulmonary emboli usually arise from the thrombi originating in the deep venous system of the lower extremities; however, rarely they may originate in the pelvic, renal, or upper extremity veins and the right heart chambers.
		Pulmonary infarction is an uncommon consequence because of the bronchial arterial collateral circulation.
		Pulmonary embolism was identified as the cause of death in a patient who developed shortness of breath while hospitalized for hip joint surgery.
	www.emedicine.com /med/topic1958.htm (8660 words)

	Diagnosis of pulmonary embolism -- Kearon 168 (2): 183 -- Canadian Medical Association Journal
		Pulmonary angiography or helical CT may be considered if the clinical assessment of pulmonary embolism probability is low, particularly if a D-dimer test has not been done [4].
		Diagnosis of acute pulmonary embolism in the elderly.
		Diagnostic utility of ventilation/perfusion lung scans in acute pulmonary embolism is not diminished by pre-existing cardiac or pulmonary disease.
	www.cmaj.ca /cgi/content/full/168/2/183 (6573 words)

	MedlinePlus Medical Encyclopedia: Pulmonary embolus
		Pulmonary emboli are most often caused by blood clots in the veins, especially veins in the legs or in the pelvis (hips).
		In cases of severe, life-threatening pulmonary embolism, definitive treatment consists of dissolving the clot with thrombolytic therapy.
		In cases of severe pulmonary embolism, where shock and heart failure occur, the death rate may be greater than 50%.
	www.nlm.nih.gov /medlineplus/ency/article/000132.htm (758 words)

	eMedicine - Pulmonary Embolism : Article by Craig Feied, MD, FACEP, FAAEM, FACPh (Site not responding. Last check: 2007-11-07)
		Background: Pulmonary embolism (PE) is an extremely common and highly lethal condition that is a leading cause of death in all age groups.
		Whether the presentation of the patient with pulmonary thromboembolism is typical or atypical, the list of differential diagnoses remains extensive and the true diagnosis must be sought actively.
		Pulmonary angiography remains the criterion standard for the diagnosis of PE.
	www.emedicine.com /EMERG/topic490.htm (9221 words)

	Pulmonary embolism - MayoClinic.com
		Pulmonary embolism is a condition that occurs when an artery in your lung becomes blocked.
		Still, pulmonary embolism is a leading cause of hospital deaths and an increasing threat to passengers on long airplane flights.
		And when pulmonary embolism does occur, treatment with anti-clotting medications can greatly reduce the risk of death.
	www.mayoclinic.com /health/pulmonary-embolism/DS00429 (264 words)

	Pulmonary Embolism -- Topic Overview
		Pulmonary embolism is the sudden blockage of an artery in the lung.
		Pulmonary embolism caused by large clots can cause sudden death, usually within 30 minutes of when symptoms begin.
		The most common cause of pulmonary embolism is a blood clot that forms in a deep vein in your leg, breaks loose, travels to the lungs, and becomes trapped in one of the smaller lung arteries.
	www.webmd.com /hw/health_guide_atoz/ue4085.asp (170 words)

	Pulmonary Embolism
		Pulmonary embolism is a potentially fatal disorder that is often difficult to diagnose clinically.
		Pulmonary arteriography is the only definitive means of establishing a diagnosis of pulmonary embolus.
		Pulmonary arteriography is generally reserved for patients with an intermediate probability of pulmonary embolism based on the V/Q scan or those in whom a definitive diagnosis is required prior to any contemplated interventional treatment.
	brighamrad.harvard.edu /Cases/bwh/hcache/116/full.html (510 words)

	Medcyclopaedia - Pulmonary embolism
		The prompt and accurate diagnosis is of major concern because untreated PE is potentially fatal and unnecessary treatment with anticoagulation has a high degree of morbidity and mortality.
		Pulmonary angiography has long been recommended as the procedure of choice in the patient with a suspected diagnosis of PE.
		Both will show a clot obstructing a vessel or contrast conservative approach includes V/Q scan for patients without underlying pulmonary disease, to be followed by additional testing if not diagnostic and a combination of CT and lower extremity Doppler ultrasonography in the remainder of patients.
	www.medcyclopaedia.com /library/topics/volume_v_1/p/PULMONARY_EMBOLISM.aspx (615 words)

	Pulmonary embolism
		Pulmonary embolism is sudden blockage of blood flow in an artery in the lung.
		Pulmonary embolism can be a very serious condition that can result in death.
		Pulmonary embolism is treated in the hospital with monitoring, oxygen, and anticoagulants to prevent more blood clots.
	www.webmd.com /hw/health_guide_atoz/stp2035.asp (156 words)

	Pulmonary embolism definition - Medical Dictionary definitions of popular medical terms
		Pulmonary embolism: The obstruction of the pulmonary artery or a branch of it leading to the lungs by a blood clot, usually from the leg, or foreign material causing sudden closure of the vessel.
		The risk factors for pulmonary embolism include advanced age, cancer, genetic predisposition, immobilization (especially in the hospital), pelvic or leg trauma, pregnancy, and surgery.
		The diagnosis of pulmonary embolism can be difficult because the symptoms are nonspecific and may mimic many other diseases.
	www.medterms.com /script/main/art.asp?articlekey=13918 (316 words)

	Pulmonary Embolism
		A ventilation/perfusion lung scan, obtained to explore the possibility of pulmonary embolism, was markedly positive.
		Given the clinical picture of right heart strain in the presence of massive pulmonary embolism, the patient was treated with tissue plasminogen activator (TPA) at the regimen of 100 mg continuous infusion over 3 hours, then was switched to intravenous heparin and eventually begun on oral warfarin sodium (Coumadin).
		No clinical episodes of recurrent pulmonary embolism were noted among rt-PA patients, but 2 fatal and 3 nonfatal clinically suspected recurrent embolic episodes occurred within 14 days in patients randomized to heparin alone.
	brighamrad.harvard.edu /Cases/bwh/hcache/22/full.html (616 words)

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