Lancisi's sign is a clinical sign in which a large venous wave, or Giant V wave, is visible in the jugular vein in patients with tricuspid regurgitation. It is caused by blood flowing backwards into the jugular vein through the incompetent tricuspid valve during ventricular systole.Lancisi's sign at Mondofacto online dictionary
The sign is named after Giovanni Maria Lancisi.Giovanni Maria Lancisi at TheFreeDictionary.com
See also Jugular venous pressure
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