Radiofrequency ablation is one of the alternative treatment strategies in patients with atrial fibrillation. With the increasing number of such ablation procedures being performed it is important for the physicians to be aware of the associated complications. We present a very rare case of severe triple coronary vessel spasm during radiofrequency catheter ablation. The procedure was complicated by cardiac arrest secondary to ventricular fibrillation and cardiogenic shock requiring subsequent management with a temporary mechanical circulatory support device. Multi-vessel spasm is a rare and life-threatening complication leading to ventricular fibrillation and cardiac arrest. One should be extra vigilant in monitoring patients during extensive ablations and the procedure should be terminated at the earliest signs of ischemia in order to prevent this rare but fatal complication.
Chronic total occlusion (CTO) of coronary artery remains the Achilles heel of the interventional cardiologist and is present in a significant proportion of referrals for coronary artery bypass graft surgery (CABG); however, with the development and standardization of modern CTO recanalization techniques, it has been able to achieve excellent success while coping with lesions of increasing complexity. Nevertheless, failure to recanalize despite the development of new techniques still remains one of the challenges in the field of interventional cardiology. Spontaneous recanalization has been described in nonocclusive coronary artery dissections in detail; none has addressed the possibility of spontaneous recanalization after failed percutaneous coronary intervention (PCI). We report a case of spontaneous but delayed recanalization of CTO of left anterior descending artery 3 years after attempted but failed revascularization during PCI.
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