Fracture and Migration of Implantable Venous Access Port Catheters:Cause Analysis and Management of 4 Cases

摘要

This study aimed to investigate the causes and managements of the fractures and migrations of the implantable venous access port catheter(IVAPC). The fracture or migration of IVAPC occurred in 4 patients who were treated between May 2012 and January 2014 in Union Hospital,Wuhan,China. The port catheter leakage was found in 2 cases during drug infusion. Catheters that dislodged to the superior vena cava and right atrium were confirmed by port angiogram. The two dislodged catheters were successfully retrieved by interventional procedures. Catheter fracture occurred in two cases during port removal. One catheter was eventually removed from the subclavian vein through right clavicle osteotomy and subclavian venotomy,and the other removed by external jugular venotomy. Flushing the port in high pressure and injury of the totally implantable venous access port(TIVP) during implantation are usually responsible for catheter displacement. Interventional retrieval procedure can be used if the catheter dislodges to the vena cava and right atrium. Catheter fracture may occur during removal if clipping syndrome occurs or the catheter is sutured very tight during implantation.