The Deep Freeze For Irregular Heartbeats
Cold probe, warm heart. That's the concept behind a supercold catheter being developed by John Dobak, a San Diego physician who has started a one-man company called Aegis Medical Technologies. The frigid tip of the catheter would kill pieces of heart tissue to stop irregular heartbeats. Such arrhythmia is usually controlled with medication or burning. But drugs aren't always effective and may have side effects. And electrical burning can't always safely treat a big enough area.
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