Therapy Efficacy of Idiopathic Ventricular Extrasystoles: A Real Life Study

Figure 4

(a) Ventricular extrasystole in a 12-lead ECG, originating from the left coronary cusp (LCC). The patient was a woman aged 24 years with normal left ventricular function and 47,000 extrasystoles in Holter monitoring, experiencing palpitations and presyncope. (b) CARTO mapping shows an optimal intracardiac signal located ideally, 29 ms before the QRS complex, and comparable with a 12-lead ECG extrasystole. (c) Aortic valve mapping reveals the optimal site of the extrasystole located in the left coronary cusp (LCC) in the left anterior obtuse view (LAO). (d) Aortic root and right ventricular outflow tract (RVOT) mapping. Red dots indicate the successful ablation site in the left coronary cusp (LCC).

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