To compare the rate of success and incidence of complications associated with currently popular routes of percutaneous central venous cannulation, we studied 131 patients in whom central venous catheterization was attempted. Right or left external jugular veins were used in 67 cases, and success rate was 9796. Right internal jugular veins were used in 27 cases, and success rate was 100%. Right or left basilic veins were used in 21 cases, and success rate was 76%. Right or left subclavian veins were used in 16 cases, and 75% of success rate. Non-J-wire type catheters were utilized in 60 cases, and success rate was 88%. J-wire type catheters were used in 71 eases, and success rate was 94%. We found 2 cases of catheter curling in Non-J-wire type catheters.