case_images: PMC10519349_01
case_images: - Registro do monitor cardiaco de taquicardia ventricular polimorfica (TVPM)/fibrilacao ventricular (FV). A) Inicio da TVPM. B) Registro longo do mesmo episodio. Degeneracao de TVPM para FV e termino por desfibrilacao externa.
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case_images: He was in sinus rhythm on admission but then had a cardiac arrest where cardiac monitoring demonstrated PMVT degenerated to VF on the evening of his hospitalization (Figure 1A). Sinus rhythm was restored by defibrillation (Figure 1B). Isochronal late activation mapping (ILAM) demonstrated an area of isochronal crowding/deceleration zone (DZ) on the mid-basal anteroseptum adjacent to the scar area (Figure 2B, Video 1).
case_images: - Mapa CARTO eletroanatomico do ventriculo esquerdo do paciente. A) O mapeamento de voltagem durante o ritmo sinusal demonstra uma area cicatricial no meio do anterosepto. B) O mapeamento isocronal de ativacao tardia (ILAM) mostra o agrupamento isocronal consistente com uma zona de desaceleracao na mesma area. Marcas turquesa representam locais onde Purkinje e potenciais diastolicos tardios sao registrados em cicatrizes densas e areas lotadas isocronicas. Purkinje no circulo vermelho e potenciais diastolicos tardios no circulo amarelo sao registrados no eletrograma intracardiaco no ponto marcado com uma seta turquesa.
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case_images: Voltage mapping during sinus rhythm demonstrated scar areas in the mid-basal anteroseptum (Figure 2A). Isochronal late activation mapping (ILAM) demonstrated an area of isochronal crowding/deceleration zone (DZ) on the mid-basal anteroseptum adjacent to the scar area (Figure 2B, Video 1).
case_images: - O mapeamento de ativacao tardia isocrona mostra aglomeracao isocrona consistente com baixa tensao/area de cicatriz.
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case_images: Scar border zone and Purkinje potentials adjacent to this region were also determined as ablation targets (Figure 3).