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Treatment of Hemorrhoids: Rubber band ligation Or Sclerotherapy

We want to compare the effectiveness of sclerotherapy and rubberband ligation when it comes to symptoms. We will secondarily consider patient satisfaction, complications and recurrences. We hypothesize that both treatments are equally effective.

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…

The DRAIHA study: Data Registry of AutoImmune Hemolytic Anemia, to improve diagnostic testing for the development of personalized treatment protocols in AIHA patients

Primary objective1. The primary aim of the study is to answer the question whether specification of a positive direct antiglobulin test and/or red blood cell autoantibody specification is correlated with the clinical course in patients with AIHA.…

Observational Dutch Young Symptomatic StrokE studY - Extended

To investigate the role of the immune system in the etiology and prognosis in an acute ischemic stroke (or TIA) in young stroke patients.

Melanoma Margins Trial-II: 1cm v 2cm Wide Surgical Excision Margins for AJCC Stage II Primary Cutaneous Melanoma (MelMarT-II)

This study will determine whether there is a difference in disease free survival for patients treated with either a 1cm excision margin or 2cm margin for clinical stage II (pT2b-pT4b) primary cutaneous melanoma (AJCC 8th edition, Table 1). The…

Clinical outcomes and cost-effectiveness of a diagnostic and treatment strategy of upfront CTCA plus selective non-invasive functional imaging compared with standard care in patients with chest pain and suspected coronary artery disease

This strategy will result in a reduction reduce the incidence of major adverse cardiovascular events (MACE) defined as death or non-fatal myocardial infarction and appear more efficient than care as usual.

TUbectomy with delayed oophorectomy as alternative for risk-reducing salpingo-oophorectomy in BrcA-Women to assess the Safety of Prevention: the TUBA-WISP II study

To evaluate RRS with delayed RRO as an alternative for RRSO in BRCA1/2 gene germline mutation carriers. We hypothesize that RRS with delayed RRO leads to an equal ovarian cancer incidence when compared to RRSO.