• Muhammad Asad, Qurban Hussain Khan, Azmat Hayat, and Rehana Khadim.
• Department of ElectroPhysiology, Armed Forces Institute of Cardiology & National Institute of Heart Diseases (AFIC/NIHD), Rawalpindi, Pakistan.
• J Coll Physicians Surg Pak. 2022 Apr 1; 32 (4): S6-S8.

AbstractIdiopathic premature ventricular contractions (PVCs) most often occur under or above the semi-lunar valves from the right ventricular outflow tract and less often from the left ventricular outflow tract. Radio-frequency ablation is mostly used for patients who develop left ventricular dysfunction or intolerable symptoms. Since most of the patients are in the young age group and ablation has a high success rate with recurrence being relatively low, it can be offered to those symptomatic patients who want a definitive cure. The use of 3-dimensional (3D) electroanatomic mapping systems helps locate the ablation site. We report a case of a young man with PVCs coming from a rare site of non-coronary cusp, which was ablated successfully by using a high-density mapping system. Key Words: Catheter ablation, Left ventricular outflow tract, Non-coronary aortic cusp, Premature ventricular contractions.

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