Myocardial Infarction

Adverse events not up with six months of DAPT

(HealthDay)—For patients receiving an everolimus-eluting stent implantation, six months of dual antiplatelet therapy (DAPT) does not increase composite events compared with 12 months of DAPT, according to a study published ...

May 19, 2016
popularity1 comments 0

CABG underused in diabetes with multivessel disease

(HealthDay)—About one-third of patients with diabetes mellitus and multivessel coronary artery disease presenting with non-ST-segment elevation myocardial infarction undergo coronary artery bypass graft (CABG) and more ...

May 16, 2016
popularity2 comments 2

Failures in heart attack care?

A new study has found that thousands of deaths could have been avoided if heart attack aftercare guidelines outlining when to give treatment were followed.

May 10, 2016
popularity1 comments 0

Cilostazol doesn't prevent periprocedural MI in ACS

(HealthDay)—For patients with acute coronary syndrome (ACS) undergoing percutaneous coronary intervention (PCI), adjunctive loading dose of cilostazol is not associated with prevention of periprocedural myocardial infarction ...

May 09, 2016
popularity1 comments 0

Myocardial infarction (MI) or acute myocardial infarction (AMI), commonly known as a heart attack, results from the interruption of blood supply to a part of the heart, causing heart cells to die. This is most commonly due to occlusion (blockage) of a coronary artery following the rupture of a vulnerable atherosclerotic plaque, which is an unstable collection of lipids (cholesterol and fatty acids) and white blood cells (especially macrophages) in the wall of an artery. The resulting ischemia (restriction in blood supply) and ensuing oxygen shortage, if left untreated for a sufficient period of time, can cause damage or death (infarction) of heart muscle tissue (myocardium).

Classical symptoms of acute myocardial infarction include sudden chest pain (typically radiating to the left arm or left side of the neck), shortness of breath, nausea, vomiting, palpitations, sweating, and anxiety (often described as a sense of impending doom). Women may experience fewer typical symptoms than men, most commonly shortness of breath, weakness, a feeling of indigestion, and fatigue. Approximately one-quarter of all myocardial infarctions are "silent", that is without chest pain or other symptoms.

Among the diagnostic tests available to detect heart muscle damage are an electrocardiogram (ECG), echocardiography, cardiac MRI and various blood tests. The most often used blood markers are the creatine kinase-MB (CK-MB) fraction and the troponin levels. Immediate treatment for suspected acute myocardial infarction includes oxygen, aspirin, and sublingual nitroglycerin.

Most cases of STEMI (ST elevation MI) are treated with thrombolysis or percutaneous coronary intervention (PCI). NSTEMI (non-ST elevation MI) should be managed with medication, although PCI is often performed during hospital admission. In people who have multiple blockages and who are relatively stable, or in a few emergency cases, bypass surgery may be an option, especially in diabetics.

Heart attacks are the leading cause of death for both men and women worldwide. Important risk factors are previous cardiovascular disease, older age, tobacco smoking, high blood levels of certain lipids (triglycerides, low-density lipoprotein) and low levels of high density lipoprotein (HDL), diabetes, high blood pressure, obesity, chronic kidney disease, heart failure, excessive alcohol consumption, the abuse of certain drugs (such as cocaine and methamphetamine), and chronic high stress levels.

This text uses material from Wikipedia licensed under CC BY-SA

Latest Spotlight News

Teen brains facilitate recovery from traumatic memories

Unique connections in the adolescent brain make it possible to easily diminish fear memories and avoid anxiety later in life, according to a new study by Weill Cornell Medicine researchers. The findings may have important ...

Genetic sequencing reveals drug resistance growth

The rate at which genetically mutated cancer cells grow may help explain why patients with a common form of leukemia develop treatment resistance, according to new research led by a Weill Cornell Medicine investigator. The ...

Neuroscientists illuminate role of autism-linked gene

A new study from MIT neuroscientists reveals that a gene mutation associated with autism plays a critical role in the formation and maturation of synapses—the connections that allow neurons to communicate with each other.