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A 30-year-old member asked:

A question on supraventricular tachycardia- svt. at how rate is a fast heart rate deadly?

1 doctor answer1 doctor weighed in
Dr. Michael Zevitz
Cardiology 38 years experience
Good question: On average, heart rates over 180 are potentially fatal. Heart rates under 160 are usually not fatal, but they can be serious. The faster the heart rate in svt, the less blood fills the heart and the less blood is pumped to the rest of the body.
Last updated Feb 3, 2015

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