Valvular stenosis occurs when one of the heart valves narrows, obstructing normal blood flow through the heart.History of ValvulotomesIn the late 19th century, doctors began developing manual instruments called Cardiac Valvulotome to treat valvular stenosis through an open-chest surgery. Some of the earliest valvulotomes consisted of clamps or forceps with blades or wires for cutting into...
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