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VIDEO 1: Cardiomyopathy in a cat

Cardiomyopathy in a 6-year old Exotic Shorthair cat – right parasternal short-axis echocardiographic view at the level of the aortic root. Severe left atrial dilation and poor left atrial contractility can be seen, as can dense spontaneous echocontrast (‘smoke’) within the left atrium.

VIDEO 2: Arterial thromboembolism in the cat

Oblique echocardiographic views looking at the left atrium in the Domestic Shorthair cat featured in Figure 2 of the article. A mobile thrombus is present, moving around the left atrium and posing an extremely high risk of sudden death or arterial thromboembolism.