First-degree atrioventricular block

@article{Barold2006FirstdegreeAB,
  title={First-degree atrioventricular block},
  author={S Serge Barold and Arzu Ilercil and Fabio M. Leonelli and Bengt Herweg},
  journal={Journal of Interventional Cardiac Electrophysiology},
  year={2006},
  volume={17},
  pages={139-152}
}
Marked first-degree AV block (PR≥0.30 s) can produce a clinical condition similar to that of the pacemaker syndrome. Clinical evaluation often requires a treadmill stress test because patients are more likely to become symptomatic with mild or moderate exercise when the PR interval cannot adapt appropriately. Uncontrolled studies have shown that many such symptomatic patients with normal left ventricular (LV) function improve with conventional dual chamber pacing (Class IIa indication). In… CONTINUE READING

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