Oblique Versus Transverse Orientation Approach for Internal Jugular Venous Cannulation in Pediatrics

Inclusion Criteria: * patients age 3 months to 12 years old, weight 5-20 kg, male or female * who undergo heart surgery and indicated to have central venous cannulation * American Society of Anesthesiologist Physical Class 1-3 * Family or representation of the patients agreed to participate in this study and sign informed consent Exclusion Criteria: * history of surgery in the area of cannulation * already placed central venous cannulation \<72 hours in the same venous * sign of infection, hematoma, emphysema, in the area of cannulation * history of cervical trauma * severe hemostatic disorder (International Normalized Ratio\>2, thrombocyte \<50.000, Prothrombin time\>1.5 times, Activated Partial Thromboplastin Time \> 1.5 times