A method for treating a heart valve comprises delivering a repositioning device to a ventricle of a heart. The repositioning device comprises an anchoring element and a band. The method further comprises securing a first end of the band to the anchoring element, extending a second end of the band to encircle and at least partially contact a first papillary muscle, tightening the band to cause repositioning of at least a portion of the first papillary muscle, and locking the band in place.
