Complicated catheter ablation of premature ventricular contractions from the left sinus of Valsalva in a young female. Case presentation

Idiopathic premature ventricular complexes (PVCs) are usually benign and are often treated conservatively. Data regarding radiofrequency catheter ablation (RFA) of PVCs from the aortic sinus of Valsalva are spare. Furthermore, there are limited data regarding complications and their solutions during RFA of PVCs from the aortic sinus of Valsalva. Here we describe a clinical case of symptomatic PVCs in a 27yrold young woman with reduced exercise tolerance and dyspnea. The patient had taken anti-arrhythmic group Ic, II, and III drugs with no significant effect. Successful catheter ablation of PVCs from the left sinus of Valsalva was complicated by acute occlusion of the left main coronary artery (LCA) followed by polymorphic ventricular tachycardia and ventricular fibrillation. Cardioversion and intravenous antiarrhythmic administration restored the sinus rhythm. The LCA was stented with a bioresorbable Magmaris stent with the support of extracorporeal membrane oxygenation that was required due to severe hypotension and ineffectiveness of vasopressors. After the procedure, a favorable angiographic effect was noted. The result of stenting was monitored with IVUS intravascular navigation. The patient was discharged in a satisfactory condition on the 10th day after the procedure. Special attention should be applied to prevent complications and to careful patient selection for RFA in the left sinus of Valsalva, and care must be taken to avoid injury to the LCA. Timely and correct procedures can result in patient survival even after acute LCA injury and occlusion.

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