In a new study reported in the American Heart Association journal Circulation: Heart Failure, researchers say more than an hour of moderate or half an hour of vigorous exercise per day may lower your risk o ...
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Pulmonary embolism (PE) is a blockage of the main artery of the lung or one of its branches by a substance that has travelled from elsewhere in the body through the bloodstream (embolism). Usually this is due to embolism of a thrombus (blood clot) from the deep veins in the legs, a process termed venous thromboembolism. A small proportion is due to the embolization of air, fat, talc in drugs of intravenous drug abusers or amniotic fluid. The obstruction of the blood flow through the lungs and the resultant pressure on the right ventricle of the heart leads to the symptoms and signs of PE. The risk of PE is increased in various situations, such as cancer or prolonged bed rest.
Symptoms of pulmonary embolism include difficulty breathing, chest pain on inspiration, and palpitations. Clinical signs include low blood oxygen saturation and cyanosis, rapid breathing, and a rapid heart rate. Severe cases of PE can lead to collapse, abnormally low blood pressure, and sudden death.
Diagnosis is based on these clinical findings in combination with laboratory tests (such as the D-dimer test) and imaging studies, usually CT pulmonary angiography. Treatment is typically with anticoagulant medication, including heparin and warfarin. Severe cases may require thrombolysis with drugs such as tissue plasminogen activator (tPA) or may require surgical intervention via pulmonary thrombectomy.
Breast cancer cells can lay the groundwork for their own spread throughout the body by coaxing cells within lymphatic vessels to send out tumor-welcoming signals, according to a new report by Johns Hopkins ...
(HealthDay)—The U.S. obesity epidemic is a driving force behind the rising rates of type 2 diabetes, according to a new study.
(HealthDay)—Stimulant medications—such as Adderall, Ritalin and Concerta—used to treat attention-deficit/hyperactivity disorder (ADHD) in children, won't stunt their growth, a new study suggests.
Branded or trademarked diets have similar levels of effectiveness; the key is sticking to it, a research study has found.
(HealthDay)—Two new studies further confirm the health benefits of breast-feeding.
Researchers at the University of California, San Diego School of Medicine have identified an enzyme that controls the spread of breast cancer. The findings, reported in the current issue of PNAS, offer hope f ...
Yale Cancer Center researchers may have discovered a new way of harnessing lupus antibodies to sabotage cancer cells made vulnerable by deficient DNA repair.
A brain region largely known for coordinating motor control has a largely overlooked role in childhood development that could reveal information crucial to understanding the onset of autism, according to ...
A new Northwestern University study provides the first direct evidence that a community music program for at-risk youth has a biological effect on children's developing nervous systems.