A small clinical-ECG/VCG detail is the diagnostic clue… Did you get it?

73-year-old male, Caucasian, lawyer, referred by a neurologist, with whom he was being studied due to cognitive deficit, for cardiac evaluation. He refers to be a long-standing hypertension and concomitantly carrier of familial hypertrophic cardiomyopathy (first-degree relatives – 2 siblings – are carriers of both hypertension and hypertrophic cardiomyopathy).