PORTAS 2, Comparing Venae Sectio Versus Punction of Vena Subclavia for Insertion of a Totally Implantable Access Port

Inclusion Criteria: * Age equal or greater than 18 years * Patients scheduled for primary elective implantation of TIAP Exclusion Criteria: * Participation in another clinical trial which could interfere with the primary endpoint of this study * Lack of compliance * Impaired mental state or language problem * Patients with known allergy to contrast agent