a method and apparatus for securing separate loops of suture with a coaxial mechanical fastener . separate loops of suture extend from opposite ends of the mechanical fastener . a wire snare facilitates pulling the suture through the fastener . a suturing instrument provides for the infusion of pressurized physiologic solutions into the left ventricle so that the proper replacement suture length can be demonstrated real time prior to crimping the fastener . the instrument incorporates a slotted release site so that the fastener and suture can be released from the device tip once the fastener is secured . a method of securing suture coming from cardiac valve leaflets and or other structures like papillary muscles permits a more atraumatic orientation of the fastener coaxial with the suture strands .