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Is, in infertile women undergoing a basic fertility work-up, tubal flushing with oil-based contrast medium during hysterosalpingography (HSG) cost-effective compared to tubal flushing by hysterosalpingo-foam sonography (HyFoSy)? A randomized controlled trial.

The main objective of this study is to determine whether tubal flushing with oil-based contrast during HSG results into more pregnancies leading to live births when compared to tubal flushing with ExEm-foam during HyFoSy, and whether this approach…

Multi-parametric MRI in patients suspected for muscle invasive bladder cancer: a new local staging paradigm

The aim of this study is to determine whether multiparametric MRI (mpMRI) of the bladder, in combination with an outpatient biopsy for histological confirmation, is a faster, safer, cheaper and therefore more cost-effective way to detect or…

Bifurcation PCI with a hybrid strategy with drug eluting balloons versus a stepwise provisional two-stent strategy. A randomized controlled single-blinded multicentre trial and registry

In this study we will compare a hybrid DEB strategy with a conventional bailout 2-stent strategy (TAP/T-stenting or Culotte) in patients with a bifurcation lesion with sub-optimal side-branch result. The primary endpoint will be the composite…

The cost-effectiveness of contingency management compared to standard cognitive behavioral treatment for treating cannabis use disorder in youth: A randomized controlled trial

We aim to investigate in an RCT the (cost-)effectiveness of CM, compared with usual care CBT in the treatment of CUD in youths aged 16 to 22 years. Both outpatient treatments are provided for 12 weeks.PRIMARY STUDY QUESTION:1. What is the efficacy…

Optimal postoperative chest tube and pain management in patients surgically treated for primary spontaneous pneumothorax; a randomized controlled trial.

Our objective is to compare the efficacy of early chest tube removal combined with single-shot PVB versus standard treatment (chest tube for at least 3 days and thoracic epidural analgesia (TEA)) after surgery for PSP. Efficacy is defined as…