An ultrasound study on infants and children under general anaesthesia evaluated the femoral vein with the patients’ legs at 30° and 60° of abduction and their hips externally rotated. Measurements were taken at the level of the inguinal crease and 1 cm below the crease.
Hip rotation with 60° leg abduction significantly decreased the overlap between femoral vein and femoral artery at the level of the inguinal crease in both infants and children.
The authors recommend the optimal place for femoral vein cannulation in paediatric patients seems to be at the level of the inguinal crease with 60° leg abduction and external hip rotation.
Ultrasonographic evaluation of the femoral vein in anaesthetised infants and young children