Late perforation by central venous cannulae.

Late perforation by central venous cannulae.

Three cases of hydrothorax secondary to late perforation of the superior vena cava by central venous cannulae are presented. The care of central venous cannulae is discussed.

Heart perforation by central venous catheters.

Since their introduction in the early 1950s, central venous catheters have become an indispensable tool in the operating room and in the intensive care unit. At least a dozen manufacturers currently sell these devices in North America, and more than 50,000 catheters are used in Canada each year. In a large metropolitan general hospital as many as I ,~00 catheters may be used in patients annuall...

Late venous perforations due to percutaneous central venous cannulation.

mean total dose of 0.5 per cent bupivacaine injected epiduraUy was 8.1 +0.26 ml (range 5-10 ml). The subarachnoid block usually extended from $5 to T7 dermatomes. The usual upper level of the CSE block after injection of local anaesthetic via the epidural catheter was T4. In six patients (25 per cent) the subarachnoid block reached the T4-5 level and further extension of block by epidural injec...

The Need of Slanted Side Holes for Venous Cannulae

Well-designed cannulae must allow good flow rate and minimize nonphysiologic load. Venous cannulae generally have side holes to prevent the rupture of blood vessel during perfusion. Optimizing side hole angle will yield more efficient and safe venous cannulae. A numerical modeling was used to study the effect of the angle (0°-45°) and number (0-12) of side holes on the performance of cannulae. ...

Late displacement of central venous catheter resulting in vascular obstruction.