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Laminar flow

Flow without turbulence, e.g. laminar flow pattern through aortic valve (during ultrasound examination); opposite of turbulent flow (turbulance)

LeCompte manoeuvre

Surgical procedure named after a French heart surgeon, used during the arterial switch

Left-to-right shunt

E.g. in ventricular septal defects. A hole in the cardiac septum allows oxygenated blood to flow from the left to the right ventricle and from there to the lungs

Left-ventricular hypertrophy

Increase of the size of the walls of the left ventricle usually caused by the pressure of hypertension; can lead to cardiac insufficiency.

Left cardiac catheter

See cardiac catherterisation


Operative constriction or compression of vessels


Left ventricular outflow tract; the path taken by the blood from the left ventricle to the aorta


Dissolution of a blood clot (fibrin) using specific anticoagulant proteins

Author(s): Kinderherzstiftung, Prof. Dr. Elisabeth Sticker, Hermine Nock
Last updated: 2009-04-28