21 August 2026
: Case report 
Left Ventricular Summit Ventricular Tachycardia Identified by Electrocardiographic Pattern Recognition and Managed With Radiofrequency Ablation
Challenging differential diagnosis, Management of emergency care, Rare disease
Mariana Goes Moreira ABCDEF 1, Carina Abigail Hardy ABD 1, Leandro Menezes Alves da Costa ACD 1, Ana Carolina Menezes Borsoi ACD 1, Rodrigo Goldenstein Schainberg ACD 1, Anna Beatriz Gori Montes ACD 1, Rafael Amorim Belo Nunes ACD 1, Thiago Midlej Brito ACD 1, Daniel Castanho Genta Pereira ACD 1, Roger Pereira de Oliveira
ACD 1, Thiago Luis Scudeler ABCDEF 1*
DOI: 10.12659/AJCR.953321
Am J Case Rep 2026; 27:e953321
Figure 2 Intensive care unit electrocardiogram (ECG). The ECG shows nonsustained monomorphic ventricular tachycardia (NSVT) with the same QRS morphology as the premature ventricular complexes seen on the admission ECG, supporting a shared arrhythmogenic focus. Limb-lead analysis shows higher R-wave amplitude in lead II than in lead III and absence of septal q waves in leads I, II, and III. These findings support an anterosuperior left ventricular epicardial origin and are suggestive of left ventricular summit ventricular tachycardia.