Exclusioncriteria
allergy, fistula, skin infection
ALLERGY, SKIN INFECTION

Intravenous pacemaker or a PICC-line via right-sided central veins in situKnown CVSAV fistula in the right armHistory of central venous vascular interventions including stents, dilatations and more (but not previous central venous catheterisation)Central venous catheter in the right internal jugular vein or in the right subclavian vein in situEither the right jugular vein or the right subclavian vein unavailable for catheterisation due to, e.g. local skin infection or thrombosisKnown allergy to iodinated contrast agentsBMI > 35 kg/mNo study physician available for the catheterisation