Ablation for idiopathic VF that targets short coupled VPB triggers is associated with a long-term freedom from VF recurrence.

The electron backscattered diffraction (EBSD) technique has been used to assess crystallographic features of the residual ␥ phase and the strain-induced /␣Ј martensites in a 304 stainless steel, tensile tested to 10 pct strain at T ϭ Ϫ60 °C. The martensitic transformation rate varies according to the ␥-grain orientation against the applied stress and the ␥-grain size. The ␣Ј-transformation textures as well as the ␥-misorientation spreads observed in specific ␥-grain orientations have been analyzed. Large misorientation spreads are observed in the less-transformed ␥ grains. This reveals an important crystallographic slip activity, even if less strain-induced martensite has been formed. A strong variant selection was detected in the cube-and Goss-oriented ␥ grains for which the transformation is less developed. For the {110}Ͻ1-11Ͼ and copper-oriented ␥ grains, the amount of ␣Ј martensite is significantly higher and the variant selection is less pronounced. This variant selection is then analyzed on at a local scale and is related to the presence of {111} ␥ localized deformation bands on which further /␣Ј martensites have nucleated.g → a¿ g → a¿

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Backgroung: Brugada Syndrome (BrS) is an arrhythmogenic disease associated with sudden