A cardioplegia catheter system for delivery of a cardioplegia solution, comprising a cardioplegia catheter comprising an elongate tubular catheter body that defines a continuous central lumen and a flange that is connected to and extends therefrom an exterior surface of the catheter body, the flange defining a plurality of suture openings that extend therethrough the flange from a top surface to a bottom surface thereof. The cardioplegia system further comprising at least one stay suture and at least one suture capture stylet having a distal portion that is adapted to extend through one suture opening of the plurality of suture openings in the flange of the catheter body, wherein the distal portion of the rod has a shape that is adapted for slideably grasping a portion of the at least one stay suture.