'Mini heart' may help people with blood flow problems

A researcher at George Washington University in Washington, DC, has made a startling innovation that could improve treatment for people who have impaired blood flow.Narine Sarvazyan, PhD, has created a tiny heart that can be implanted to encourage blood flow in veins that lack working valves. This "mini heart" is a rhythmically contracting "cuff" of heart muscle cells that surrounds the problem vein and pumps blood through the vein as it palpitates.Dr.



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