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Implanted Devices Detect High-Risk Heart Failure Patients

t of 30 percent or less in heart rate variability were almost two-and-half times more likely to die after one year.

"A person with normal heart rate variable would have a very wide footprint, while those with sick hearts would have a narrow footprint that represents the reduced variance in heart rate response," Gilliam explained. "These footprints provide us with an unbiased ?distinct from the patient's perception ?look at how the patient is truly doing. It is an objective finding that you can look at and easily understand."

Gilliam pointed out that the cardiologists are "in uncharted waters" when it comes to the new devices, their role in the treatment of heart failure, and how to make best use of the new data which they can provide. Additional trials will be needed to tease out the relationships between different patient characteristics, the use of the new technology, and patient outcomes, Gilliam said.

The CRT-D devices were developed by Guidant Corp., Indianapolis, which funds the Heart Failure-Heart Rate Variability Registry, an ongoing national study.


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Source:Duke University Medical Center


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