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Related Experiment Videos

Transient heart block associated with head trauma.

R Wirth1, P E Fenster, F I Marcus

  • 1Department of Internal Medicine, University of Arizona College of Medicine, Tucson.

The Journal of Trauma
|February 1, 1988
PubMed
Summary
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Head trauma can rarely cause atrioventricular nodal block. In a patient with a skull fracture, high-grade atrioventricular block was observed, potentially due to increased vagal tone.

Area of Science:

  • Cardiology
  • Neurology
  • Trauma Medicine

Background:

  • Atrioventricular nodal block is an uncommon complication of head injuries.
  • Coronary artery disease is a common comorbidity in patients experiencing head trauma.

Observation:

  • A 63-year-old male with coronary artery disease sustained a skull fracture.
  • Twelve hours post-trauma, the patient experienced high-grade atrioventricular block with a ventricular escape rhythm.

Findings:

  • Electrophysiologic evaluation showed no intrinsic abnormalities in atrioventricular or intraventricular conduction.
  • The atrioventricular block resolved without intervention, suggesting a transient cause.

Implications:

  • Head trauma may precipitate atrioventricular block through mechanisms such as enhanced vagal tone.

Related Experiment Videos

  • This case highlights the importance of considering cardiac complications in patients with head injuries.