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Clinical features

Authoring team

The features described may be present in extrasystoles whether they are atrial, nodal, or ventricular in origin.

  • a premature beat with a compensatory pause that is followed by a stronger beat
  • there are usually normal runs of normal beats. However extrasystoles may alternate with normal beats (pulsus bigeminus)
  • extrasystoles may disappear during exercise.

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