Key result
Simple sample/hold peak detector enables rapid and accurate measurement of cardiac action potential Vmax.
Why the study?
A simple and rapid method for measuring the maximum upstroke velocity (Vmax) of the cardiac action potential was needed.
A novel sample/hold peak detector provides a simple and accurate method for measuring the maximum upstroke velocity of cardiac action potentials.
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Simple circuit enables rapid Vmax recording on standard equipment; extends basic electrophysiology methods but leaves clinical translation open.
Hondeghem et al. (1978) studied this question. Sample/hold peak detector device was evaluated on Measurement of Vmax of the cardiac action potential. A simple device consisting of a differentiator, filter, and sample/hold peak detector allows for rapid and accurate measurement of the maximum upstroke velocity of the cardiac action potential.
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