MAYWOOD, Ill. -- Within a few years, a new generation of easy-to-use blood-thinning drugs will likely replace Coumadin for patients with irregular heartbeats who are at risk for stroke, according to a journal article by Loyola University Medical Center physicians.
Unlike Coumadin, the new drugs do not require patients to come in to the clinic on a regular basis to check the dose. Nor do the drugs require extensive dietary restrictions.
First author Sarkis Morales-Vidal, MD, and colleagues describe the new drugs in a review article in the February issue of the journal Expert Reviews. Co-authors are Michael J. Schneck, MD, Murray Flaster, MD, and Jos Biller, MD. All are in the Department of Neurology, Stroke Program, of Loyola University Chicago Stritch School of Medicine. Biller is department chair.
The new drugs include rivaroxaban (Xarelto), dabigatran etexilate (Pradaxa) and apixaban (Eliquis). They do not share the disadvantages of Coumadin, and may provide equal or superior prevention against clots, Morales and colleagues write.
Atrial fibrillation is the most common form of irregular heartbeat, and a major cause of stroke in the elderly. Electrical signals, which regulate the heartbeat, become erratic. Instead of beating regularly, the upper chambers of the heart quiver. Not all the blood gets pumped out, so clots can form. The clots can migrate to the brain and cause strokes.
More than 3 million Americans have atrial fibrillation, and the number is increasing, due in part to the aging population.
Coumadin's generic name is warfarin. For more than 30 years, the drug had been the only anticoagulant for primary and secondary stroke prevention in patients with atrial fibrillation. But the Food and Drug Administration recently approved dabigatran and rivaroxaban to reduce the risk of stroke and blood clots in patients with atrial fibrillation that is not caused by a heart valve problem. The FDA is consider
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