Junctional tachycardia history and symptoms

Symptoms are more likely if the atrial rate is faster than the junctional rate (if AV dissociation or complete heart block is present) as compared with the scenario whereby the junctional rate is faster than the atrial rate. The following symptoms may be present:

• Dyspnea
• Fatigue
• Lightheadedness
• Palpitations
• Presyncope
• Reduced exercise tolerance
• Syncope

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