Sinus venosus atrial septal defect in a patient with Pentalogy of Fallot.

and fluids were flowing well. After the dissection, the surgeon checked the patency of the vein, and it was found to be damaged. Proper positioning of the CVC is important to ensure optimal catheter function and to decrease complications. Many of the cases of left superior intercostal vein cannulation in the literature document the findings, with no report of patient symptoms, catheter function or management. Sekerci and colleagues[7] reported inadvertent malpositioning of a drum catheter in the left internal mammary vein following an attempt at central venous cannulation via the right antecubital fossa.