Yeungnam Univ J Med.  1989 Dec;6(2):241-245. 10.12701/yujm.1989.6.2.241.

A Case of Bradycardia-Dependent Complete Atrioventricular(A-V) Block

Abstract

Induction of A-V block by tachycardia is a well-known phenomenon. But there are few case reports of bradycardia-dependent A-V block. We report a case of bradycardia-dependent A-V block with review of literatures. This patient was a 52-year-old female who complained of dizziness and anterior chest discomfort. Electrocardiographic recording demonstrated complete A-V block. Monitor electrocardiographic recordings during sitting position and after atropine administration demonstrated decrease of degree of block from complete A-V block to first degree A-V block. The occurrence of complete A-V block from bradycardia during supine position suggests a phase 4-dependent block. After a permanent ventricular pacemaker was implanted, the patient recovered and was without symptoms during 12 months follow up.


MeSH Terms

Atropine
Bradycardia
Dizziness
Electrocardiography
Female
Follow-Up Studies
Humans
Middle Aged
Supine Position
Tachycardia
Thorax
Atropine
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