heart reductionA surgical technique to reduce the volume of muscle in the left ventricle of a heart that has failed as a result of dilated CARDIOMYOPATHY. A full-thickness segment is cut out of the wall of the ventricle and the edges stitched together. Increased ventricular size raises the tension disproportionately and interferes with the contractions of the ventricle. By reducing the volume of the cavity, contractility and the heart output per beat is improved. The procedure is still experimental.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005