Third degree AV block: Difference between revisions
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==Diagnosis== | ==Diagnosis== | ||
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*No atrial impulses are conducted | *No atrial impulses are conducted | ||
**P waves normal and regular P-P intervals unrelated to slower regular R-R intervals | **P waves normal and regular P-P intervals unrelated to slower regular R-R intervals | ||
Revision as of 07:51, 2 November 2015
Background
- Atria and ventricles beat independently from each other
- Congenital or acquired
- Acquired
- Ischemia
- Drugs
- Structural heart disease
Clinical Features
- Dizziness
- Syncope
- Hypotension
Diagnosis
- No atrial impulses are conducted
- P waves normal and regular P-P intervals unrelated to slower regular R-R intervals
- QRS narrow if block above bundle of His
- QRS wide if block below bundle of His
- PR variable
Management
- Pacemaker placement