reset nodus sinuatrialis
Pronunciation: re'set no'dus si'nu-a'tre-a'lis
Definition: Reset of the sinoatrial node produced by premature depolarization (usually atrial) when the sum of the duration of the premature cycle and the return cycle is less than twice the spontaneous cycle length.
Synonym(s): sinus node reset
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Examples: glitazone, GI cocktail, etc.