|
Franey T, DeMarco
LC, Deiss AC, Ward RJ. Catheter fracture and embolization
in a totally implanted venous access catheter. J
Parenteral and Enteral Nutr 1988;12:528-530.
A totally implanted venous access system was placed in a
24-year-old male patient with Hodgkins disease for
chemotherapy. Twelve months after implantation it was
noted on chest x-ray that the catheter had fractured and
the distal fragment embolized to the right ventricle.
Catheter separation and embolization is a recognized but
uncommon complication of Hickman catheters. It is an even
rarer complication of implanted central venous catheters.
With the increasing use of these new venous access
systems this complication may become a more prevalent,
but an avoidable complication.
Catheter fracture is
a relatively rare complication but it can be avoided. By
entering the subclavian vein lateral to the midclavicular
point the catheter passes through the widest portion
between the clavicle and first rib which is in the
subclavian vein. It is also important to remember when
handling the catheter prior to insertion to avoid
traumatizing it. Small cracks or nicks in the Silastic
may weaken the material predisposing it to leaks or
fracture. If there is difficulty in cannulating the
subclavian vein lateral to the midcalvicular point the
catheter can be inserted using several other alternatives
sites. Alternative site include the cephalic vein,
internal; jugular veins.
An upright chest x-ray
should be performed after insertion of the catheter
checking for pneumothorax, pleural effusion, catheter
position, catheter integrity and particular attention for
a pinch-off sign. If a pinch-off sign is detected the
catheter should be removed and reinserted either
laterally, or through an alternate site.
Abstracted with permission from the American Society for
Parenteral and Enteral Nutition, © 1988.
|