| 释义 |
DictionarySeeintervalQRS interval
QRS in·ter·valthe duration of the QRS complex in the electrocardiogram.QRS intervalIn the electrocardiogram, the interval that denotes depolarization of the ventricles, between the beginning of the Q wave and the end of the S wave. Its normal duration is 120–200 msec. Shorter durations are found, e.g., in preexcitation. Longer durations are indicative of first-degree heart block. See also: intervalLegalSeeInterval |