Statistical methods for primary and secondary outcomes {20a}
The study aims to explore if the incidence of post-catheterisation CVS when using the right-sided subclavian route is non-inferior to the internal jugular route. All patients randomised in this trial will be analysed on a per-protocol basis. The primary outcome will thus be analysed only in patients subjected to the follow-up CT venography. Patients will be enrolled using previous exit rates to determine when the calculated sample size for both groups can be reached.