A case report of entrapment of PentaRay catheter in the mechanical mitral valve: a known complication experienced anew.

The possibility of the entrapment and subsequent rupture of the spline should always be considered during mapping the site close to mechanical valve. A rapid retrieval of embolized material should be carried out. If the spline strays into the distal and small artery in which the snare system is difficult to advance, a direct syringe suction via the diagnostic catheter may be attempted.