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Heart Block
A cardiac conduction disorder where electrical signals between the upper and lower heart chambers are delayed or completely interrupted.
Key Facts
- The disruption prevents coordinated heart muscle contraction and significantly slows the overall heart rate.
- It is one of the two most common clinical indications for permanent pacemaker placement in veterinary patients.
- Affected animals typically experience progressive weakness, exercise intolerance, or sudden collapse.
- Without surgical intervention, severe cases usually result in clinical deterioration and death within one to two years.