Disc embolization of Björk-Shiley mitral prosthesis without strut fracture.

Strut fracture with subsequent embolization of the Björk-Shiley mitral prosthesis is a rare but recognized complication. A case of disc embolization without strut fracture was managed successfully by early surgical intervention. The preoperative chest x-ray film demonstrating apparently intact major and minor struts underscores the importance of a high index of suspicion to make an early diagnosis.