What is the emergency management approach if there is suspected coronary artery injury during EP ablation?

• A. Pause ablation, assess patient, activate cath lab; treat with nitrates for spasm if indicated; arrange emergent PCI if occlusion suspected; hemodynamic support as needed.
• B. Continue ablation and monitor for delayed effects.
• C. Immediately convert to surgical intervention without cath lab evaluation.
• D. Terminate procedure and discharge the patient same day.

Answer: (A)

When coronary injury is suspected during EP ablation, the priority is to stop the ablation and move quickly to definitive coronary assessment and management. This situation calls for an emergency, not a continuation of the procedure.

First, pause the ablation to prevent further thermal or mechanical injury. Then rapidly assess the patient’s status—check the ECG for ischemic changes, monitor blood pressure and heart rate, and evaluate for signs of myocardial ischemia or instability. The next crucial step is to activate the cath lab for urgent coronary angiography. Angiography will reveal whether there is a vasospasm, an occlusion from thrombus or dissection, or another coronary problem that needs targeted treatment.

If vasospasm is suspected, nitrates are the appropriate initial therapy to relieve the spasm and restore flow. If an occlusion or flow-limiting lesion is found, arrange emergent PCI to re-establish perfusion. Throughout this process, provide hemodynamic support as needed—vasopressors or inotropes for instability, and advanced circulatory support if the patient cannot be stabilized.

This approach is preferred because it directly addresses the underlying cause of ischemia and provides a definitive path to restore coronary perfusion. Continuing ablation would risk further injury and worsening ischemia, converting to surgery without cath evaluation delays critical coronary treatment, and terminating the procedure with discharge neglects the urgent need to treat potential myocardial infarction.