Plans to promote participant retention and complete follow-up {18b}
In order to minimise loss to follow-up, the following measures have been implemented:A pragmatic trial design with high-external validity, meaning that trial sites will have little problems to adapt their standard clinical workflow to the follow-up visitsFinancial reimbursement of travel costs for patients covering additional costs for trial-specific visitsAll trial sites are trained in performing surgical clinical trials (CHIR-Net) and have successfully participated in similar trialsOnly high-volume trial sites committing to include at least 10 patients per year will be chosen as trial sites