Blar i forfatter "Tichelaar, Ynse Ieuwe Gerardus Vladimir"

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    • Acute infection as a trigger for incident venous thromboembolism: Results from a population- based case- crossover study 

      Grimnes, Gro; Isaksen, Trond; Tichelaar, Ynse Ieuwe Gerardus Vladimir; Brækkan, Sigrid Kufaas; Hansen, John-Bjarne (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-12-21)
      Background:<br> A bidirectional relation exists between acute infection and immobilization, and both are triggers for venous thromboembolism (VTE). To what extent the association between infection and VTE‐risk is explained by immobilization is unknown. <br>Aims:<br> To investigate the impact of hospitalization with acute infection on the VTE‐risk in patients with and without concomitant ...

    • C-reactive protein and risk of venous thromboembolism: Results from a population-based case-crossover study 

      Grimnes, Gro; Isaksen, Trond; Tichelaar, Ynse Ieuwe Gerardus Vladimir; Brox, Jan; Brækkan, Sigrid Kufaas; Hansen, John-Bjarne (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-04-19)
      Long-term, low-grade inflammation does not seem to be a risk factor for venous thromboembolism. The impact of acute inflammation, regardless of cause, on risk of venous thromboembolism is scarcely studied. We aimed to investigate the impact of acute inflammation, assessed by C-reactive protein, on short-term risk of venous thromboembolism. We conducted a case-crossover study of patients with venous ...

    • Impact of a Vancomycin-Induced Shift of the Gut Microbiome in a Gram-Negative Direction on Plasma Factor VIII:C Levels: Results from a Randomized Controlled Trial 

      Grimnes, Gro; Bhoelan, Soerajja; Hindberg, Kristian; Davids, Mark; Nieuwdorp, Max; Mollnes, Tom E.; Michelsen, Annika Elisabet; Ueland, Thor; Brækkan, Sigrid K.; Hansen, John-Bjarne; Tichelaar, Ynse Ieuwe Gerardus Vladimir (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-08-24)
      Rationale - Inflammation is present in several conditions associated with risk of venous thromboembolism. The gut microbiome might be a source of systemic inflammation and activation of coagulation, by translocation of lipopolysaccharides from gram-negative bacteria to the systemic circulation.<p> <p>Objective - To investigate whether a vancomycin-induced shift of the gut microbiome in a gram-negative ...

    • A retrospective comparison of ultrasound-assisted catheter-directed thrombolysis and catheter-directed thrombolysis alone for treatment of proximal deep vein thrombosis 

      Tichelaar, Ynse Ieuwe Gerardus Vladimir; Brodin, Ellen Elisabeth; Vik, Anders; Isaksen, Trond; Skjeldestad, Finn Egil; Kumar, Satish; Trasti, Nora; Singh, Kulbir; Hansen, John-Bjarne (Journal article; Tidsskriftartikkel; Peer reviewed, 2016)
      Background: Recent studies have suggested that catheterdirected thrombolysis (CDT) reduces development of postthrombotic syndrome (PTS). Ultrasound-assisted CDT (USCDT) might enhance the efficiency of thrombolysis. We aimed to compare USCDT with CDT on efficacy, safety, development of PTS, and quality of life after longterm follow-up. <p>Methods: We describe a retrospective case series of 94 ...