Second degree AV block type I

Background

  • Also known as a Mobitz I or Wenkebach AV block
  • Disturbance of atrial impulse conducting through the AV node
  • Considered more benign than Mobitz II as it is not associated with histological changes

Clinical Features

Differential Diagnosis

AV blocks

Evaluation

  • ECG: progressive prolongation of PR interval with subsequent beat not reaching the ventricle

Management

Disposition

  • Generally outpatient
  • 2:1 block[1]
    • May be unable to determine if Type I or type II
    • If so, assume type II and admit with cardiology

See Also

External Links

References

  1. Sovari AA et al. Second-Degree Atrioventricular Block Treatment & Management. eMedicine. Apr 28, 2014. http://emedicine.medscape.com/article/161919-treatment#showall.