Pneumothorax and contralateral hydrothorax following subclavian vein catheterization

Central venous catheter stiffness and its relation to vascular perforation

Delayed central venous perforation is an uncommon but serious complication of central venous catheter insertion. An increase in catheter stiffness may have been responsible for our association of venous perforation with use of a guidewire insertion technique. A bench model was used to investigate the stiffness characteristics of thirty-four different types of catheters. The initial stiffness is poorly described by material or catheter gauge. A large range of values is seen between apparently similar catheters--the 16 gauge polyethylene catheter associated with two perforations at our institution had an initial stiffness value 7.5 Nm2 X 10(-5) at 37 degrees C in comparison with our previous standard--the 16 gauge Deseret Intracath with an initial stiffness of 2 Nm2 X 10(-5). Multilumen catheters had a similar range of stiffness to single lumen catheters, while paediatric catheters in general were less stiff. Dialysis catheters were up to five times as stiff as the stiffest central venous catheter. Stiffness decayed at a rate and to an extent which differed from catheter to catheter. Absorption of water by the catheter appears to be one factor involved in stress relaxation.

Major complications of central venous catheterisation: a report of five cases and a brief review of the literature

Complications of central venous catheterisation are not uncommon, although, fortunately, the majority are not serious. Five patients suffering major complications are reported and a brief review of the literature presented.

Preventing complications of subclavian vein catheterization

The proximity of the subclavian vein to several important structures of the arm, neck and chest make serious complications in subclavian catheterization occur in 0.4% to 9.9% of cases. Complications can be in immediate, chronic and late categories. An understanding of the anatomy, venography and a step-by-step technique of catheterization will help prevent complications and assist the physician in recognizing them when they occur.

Bilateral hydrothorax following internal jugular catheterization

A case of bilateral hydrothorax associated with catheterization of the internal jugular vein for feeding purposes is described. The possible mechanisms of this complication are discussed.