In this study, the risk of myocardial infarction among patients with TIA was about 1 percent a year, twice as many people who have never had a TIA. This increased risk persists for years and was higher in patients under 60 years were 15 times more likely than non-TIA patients to have a heart attack.Co-authors are Joseph D. Burns, MD, Alejandro A. Rabinstein, MD, Véronique L. Roger, MD, MPH, Latha G. Stead, MD, Teresa JH Christianson, BS, and Jill M
In the study, the average time between a TIA and a first heart attack was five years. The researchers also found that patients with TIA and then had a heart attack were three times more likely than those who have not had a heart attack to die during follow-up study.
Researchers used a database of medical records (Rochester Epidemiology Project) to retrospectively identify patients with TIA in Rochester, Minn. They then cross-checked these data with data on heart attacks that occur in this group of patients in 2006.
“In fact, coronary heart disease is one cause of death after transient ischemic attack, stroke, which is surprising as it may be,” Brown said. “We must use the TIA event not only to provide a signal warning that patients are at increased risk of stroke, but they are also at increased risk of heart attack, an event that increases the risk of death after TIA.”
These mini-strokes called transient ischemic attacks or TIAs, occur when a blood clot temporarily blocks a blood vessel in the brain. Although the symptoms are similar to a TIA is shorter – usually lasting a few minutes or hours – and does not cause long-term disability. A TIA, also known as a “warning shot” indicate a high risk of stroke following important.
Patients who have had a “” are twice the risk than the general population, according to a study reported in Stroke: Journal of the American Heart Association.
The factors that independently increase the risk of heart attack after a TIA are:
Tomb of unknown cause, the presence of one of these signs warrant a call to 9-1-1 for immediate medical care.
“The doctors and other caregivers should be aware of the risk of heart attack after a TIA, as are the occurrence of stroke,” said Robert D. Brown Jr., MD, MPH, principal investigator and chair of the department of neurology at the Mayo Clinic in Rochester, Minn. “In the same way that we evaluate the patient to determine the cause of TIA and implement strategies to reduce the incidence of stroke after TIA, we should step back and ask if a test or some screening study of coronary heart disease should be performed after a TIA, in an attempt to reduce the occurrence of a heart attack. ”
use of cholesterol-lowering medications (although patients with these drugs may have had more severe heart disease initially). The study included 456 patients (mean age 72 years, 43 percent of men) diagnosed with a TIA between 1985 and 1994. Almost two thirds had smoked more than half and three quarters were treated with drugs such as aspirin to prevent blood clots. Follow-up was 10 years.
Trouble walking, dizziness and feeling of loss of balance or coordination