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What do SDNN and RMSSD mean on a holter report? And what are the normal values?

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Dr. Calvin Weisberger
Internal Medicine - Cardiology

In brief: SDNN,RMSSD

These are mathematically derived numbers analyzing the variation in the heart rate trying to predict risk of unexpected sudden death.
I've never seen them on a report or seen anyone using them.

In brief: SDNN,RMSSD

These are mathematically derived numbers analyzing the variation in the heart rate trying to predict risk of unexpected sudden death.
I've never seen them on a report or seen anyone using them.
Dr. Calvin Weisberger
Dr. Calvin Weisberger
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