Systems and methods for reshaping a heart ventricle

Described herein are devices and methods for reshaping a heart ventricle. In one variation, a method may include securing an implantable, cinchable device to a ventricle wall, cinching the device by tensioning the tether until a circumferential portion of the ventricle at a location of the device is reduced by approximately 30% (e.g., from about 25% to about 35%), and locking the device in a cinched configuration. In one variation, the cinchable device has a plurality of tethered anchors and force distributing members. The cinchable device may be secured to the ventricle at a location approximately 10-20 mm below the mitral valve in a plane substantially parallel to the mitral valve, such that it spans approximately 220-230 degrees of the circumference of the ventricle at the location of the device. Some variations further comprise introducing a pre-determined amount of slack into the device before the device is lock in a tensioned state.