Complications

Complication
Timeframe
Likelihood
short term
medium

Patients, including children, with sustained tachycardias may develop congestive heart failure.[21]

Treatment is focused on stopping the arrhythmia.

short term
medium

Many of these dysrhythmias are recurrent and resistant to pharmacological intervention.

Refer for catheter ablation, which is curative in many cases.

short term
low

This is a rare complication, secondary to incessant atrial tachycardia.

Cardiomyopathy is observed in patients with delayed presentations, often older children or patients with already compromised cardiopulmonary reserves. It often reverses once the tachycardia is controlled.

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