9 results on '"Nevens, F. (Frederik)"'
Search Results
2. A multicentre retrospective analysis on growth of residual hepatocellular adenoma after resection
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Klompenhouwer, A.J. (Anne Julia), van Rosmalen, B.V. (Belle V.), Haring, M.P.D. (Martijn P. D.), Thomeer, M.G.J. (Maarten), Doukas, M. (Michael), Verheij, J. (Joanne), Meijer, V.E. (Vincent) de, Gulik, T.M. (Thomas) van, Takkenberg, R.B. (Bart), Kazemier, G. (Geert), Nevens, F. (Frederik), Man, R.A. (Robert) de, IJzermans, J.N.M. (Jan), Klompenhouwer, A.J. (Anne Julia), van Rosmalen, B.V. (Belle V.), Haring, M.P.D. (Martijn P. D.), Thomeer, M.G.J. (Maarten), Doukas, M. (Michael), Verheij, J. (Joanne), Meijer, V.E. (Vincent) de, Gulik, T.M. (Thomas) van, Takkenberg, R.B. (Bart), Kazemier, G. (Geert), Nevens, F. (Frederik), Man, R.A. (Robert) de, and IJzermans, J.N.M. (Jan)
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Background & Aims: Hepatocellular adenoma (HCA) is a benign liver tumour that may require resection in select cases. The aim of this study was to the assess growth of residual HCA in the remnant liver and to advise on an evidence-based management strategy. Method: This multicentre retrospective cohort study included all patients with HCA who underwent surgery of HCA and had residual HCA in the remnant liver. Growth was defined as an increase of >20% in transverse diameter (RECIST criteria). Data on patient and HCA characteristics, diagnostic work-up, treatment and follow-up were documented and analysed. Results: A total of 134 patients were included, one male. At diagnosis, median age was 38yrs (IQR 30.0-44.0) and median BMI was 29.9 kg/m2 (IQR 24.6-33.3). After resection, median number of residual sites of HCA was 3 (IQR 2-6). Follow-up of residual HCA showed regression in 24.6%, stable HCA in 61.9% and growth of at least one lesion in 11.2%. Three patients (2.2%) developed new HCA that were not visible on imaging prior to surgery. Four patients (3%, one male) underwent an intervention as growth was progressive. No statistically significant differences in clinical characteristics were found between patients with growing residual or new HCA versus those with stable or regressing residual HCA. Conclusion: In patients with multiple HCA who undergo resection, growth of residual HCA is not uncommon but interventions are rarely needed as most lesions stabilize and do not show progressive growth. Surveillance is indicated when residual HCA show growth after resection, enabling intervention in case of progressive growth.
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- 2020
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3. Number needed to treat with ursodeoxycholic acid therapy to prevent liver transplantation or death in primary biliary cholangitis
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Harms, M.H. (Maren), De Veer, R.C. (Rozanne C.), Lammers, W.J. (Wim), Corpechot, C. (Christophe), Thorburn, D. (Douglas), Janssen, H.L.A. (Harry), Lindor, K.D. (Keith), Trivedi, P.J. (Palak J.), Hirschfield, G.M. (Gideon), Parés, A. (Albert), Floreani, A. (Annarosa), Mayo, M.J. (Marlyn J.), Invernizzi, P. (Pietro), Battezzati, P.M. (Pier Maria), Nevens, F. (Frederik), Ponsioen, C.Y. (Cyril), Mason, A.L. (Andrew L.), Kowdley, K.V. (Kris), Hansen, B.E. (Bettina), Buuren, H.R. (Henk) van, Meer, A.J.P. (Adriaan) van der, Harms, M.H. (Maren), De Veer, R.C. (Rozanne C.), Lammers, W.J. (Wim), Corpechot, C. (Christophe), Thorburn, D. (Douglas), Janssen, H.L.A. (Harry), Lindor, K.D. (Keith), Trivedi, P.J. (Palak J.), Hirschfield, G.M. (Gideon), Parés, A. (Albert), Floreani, A. (Annarosa), Mayo, M.J. (Marlyn J.), Invernizzi, P. (Pietro), Battezzati, P.M. (Pier Maria), Nevens, F. (Frederik), Ponsioen, C.Y. (Cyril), Mason, A.L. (Andrew L.), Kowdley, K.V. (Kris), Hansen, B.E. (Bettina), Buuren, H.R. (Henk) van, and Meer, A.J.P. (Adriaan) van der
- Abstract
Objective: The clinical benefit of ursodeoxycholic acid (UDCA) in primary biliary cholangitis (PBC) has never been reported in absolute measures. The aim of this study was to assess the number needed to treat (NNT) with UDCA to prevent liver transplantation (LT) or death among patients with PBC. Methods: The NNT was calculated based on the untreated LT-free survival and HR of UDCA with respect to LT or death as derived from inverse probability of treatment weighting-adjusted Cox proportional hazard analyses within the Global PBC Study Group database. Results: We included 3902 patients with a median follow-up of 7.8 (4.1-12.1) years. The overall HR of UDCA was 0.46 (95% CI 0.40 to 0.52) and the 5-year LT-free survival without UDCA was 81% (95% CI 79 to 82). The NNT to prevent one LT or death within 5 years (NNT5y) was 11 (95% CI 9 to 13). Although the HR of UDCA was similar for patients with and without cirrhosis (0.33 vs 0.31), the NNT5y was 4 (95% CI 3 to 5) and 20 (95% CI 14 to 34), respectively. Among patients with low alkaline phosphatase (ALP) (≤2× the upper limit of normal (ULN)), intermediate ALP (2-4× ULN) and high ALP (>4× ULN), the NNT5y to prevent one LT or death was 26 (95% CI 15 to 70), 11 (95% CI 8 to 17) and 5 (95% CI 4 to 8), respectively. Conclusion: The absolute clinical efficacy of UDCA with respect to LT or death varied with baseline prognostic characteristics, but was high throughout. These findings strongly emphasise the incentive to promptly initiate UDCA treatment in all patients with PBC and may improve patient compliance.
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- 2019
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4. Caucasian Ethnicity, but Not Treatment Cessation is Associated with HBsAg Loss Following Nucleos(t)ide Analogue-Induced HBeAg Seroconversion
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Hees, S.V. (Stijn Van), Chi, H. (Heng), Hansen, B.E. (Bettina), Bourgeois, S. (Stefan), Vlierberghe, H.V. (Hans Van), Sersté, T. (Thomas), Francque, S. (Sven), Wong, D. (David), Sprengers, D. (Dirk), Moreno, C. (Christophe), Nevens, F. (Frederik), Janssen, H.L.A. (Harry), Vanwolleghem, T. (Thomas), Hees, S.V. (Stijn Van), Chi, H. (Heng), Hansen, B.E. (Bettina), Bourgeois, S. (Stefan), Vlierberghe, H.V. (Hans Van), Sersté, T. (Thomas), Francque, S. (Sven), Wong, D. (David), Sprengers, D. (Dirk), Moreno, C. (Christophe), Nevens, F. (Frederik), Janssen, H.L.A. (Harry), and Vanwolleghem, T. (Thomas)
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It is well appreciated that ethnicity influences the natural history and immune responses during a chronic hepatitis B infection. In this study, we explore the effect of ethnicity and treatment cessation on Hepatitis B surface Antigen (HBsAg) seroclearance in patients with Nucleos(t)ide Analogue (NA)-induced Hepatitis B e Antigen (HBeAg) seroconversion. We performed a multi-ethnic, multicentric observational cohort study. The analyzed cohort consisted of 178 mono-infected, predominantly male (75.3%) chronic hepatitis B patients of mixed ethnicity (44.4% Asians, 48.9% Caucasians) with nucleos(t)ide analogue-induced HBeAg seroconversion. Treatment was withdrawn in 105 patients and continued in 73, leading to HBsAg loss in 14 patients off- and 16 patients on-treatment, respectively. Overall, HBsAg loss rates were not affected by treatment cessation (hazard ratio 1.45, p = 0.372), regardless of consolidation treatment duration. Caucasian ethnicity was associated with an increased chance of HBsAg loss (hazard ratio 6.70, p = 0.001), but hepatitis B virus genotype was not (p = 0.812). In conclusion, ethnicity is the most important determinant for HBsAg loss after NA-induced HBeAg seroconversion, with up to six-fold higher HBsAg loss rates in Caucasians compared to Asians, irrespective of treatment cessation and consolidation treatment duration.
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- 2019
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5. Variable efficacy of TIPSS in the management of ectopic variceal bleeding: a multicentre retrospective study
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Oey, R.C. (Rosalie), K. de Wit (Koos), Moelker, A. (Adriaan), T. Atalik (Tugce), Delden, O.M. (Otto) van, Maleux, G. (Geert), Erler, N.S. (Nicole), Takkenberg, R.B. (R. Bart), Man, R.A. (Robert) de, Nevens, F. (Frederik), Buuren, H.R. (Henk) van, Oey, R.C. (Rosalie), K. de Wit (Koos), Moelker, A. (Adriaan), T. Atalik (Tugce), Delden, O.M. (Otto) van, Maleux, G. (Geert), Erler, N.S. (Nicole), Takkenberg, R.B. (R. Bart), Man, R.A. (Robert) de, Nevens, F. (Frederik), and Buuren, H.R. (Henk) van
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Background: Evidence for the efficacy of TIPSS in ectopic variceal bleeding (EctVB) is largely based on relatively small series. Aim: To define the efficacy of TIPSS in EctVB. Methods: Retrospective analysis of consecutive patients with chronic liver disease who presented with EctVB and received TIPSS in three tertiary centres in 1992-2016. Results: The study included 53 patients (70% male, median age 61 years, median model for end-stage liver disease (MELD) score 11). The ectopic varices were located around the insertion of stomas (40%), duodenum (23%), rectum (17%) and at other sites (20%). Three-quarters of the patients had previously received unsuccessful medical, endoscopic or surgical therapy. The median follow-up was 14.0 months. Following TIPSS, bleeding recurred in 12 patients: 6 of 12 (50%) with duodenal varices, 2 of 9 (22%) with rectal varices and one each with stomal (1/21), intraperitoneal (1/3), hepaticojejunostomy (1/2) and ascending colon varices (1/2). The risk factors for re-bleeding were MELD score at TIPSS placement (HR: 1.081 per point; 95% confidence interval (CI): 1.012-1.153; P = 0.034), varices located at site other than an enterostomy (HR: 9.770; 95%CI
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- 2018
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6. Milder disease stage in patients with primary biliary cholangitis over a 44-year period: A changing natural history
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Murillo Perez, C.F. (Carla), Goet, J.C. (Jorn C.), Lammers, W.J. (Wim), Gulamhusein, A. (Aliya), Buuren, H.R. (Henk) van, Ponsioen, C.Y. (Cyril), Carbone, M. (Marco), Mason, A. (Andrew), Corpechot, C. (Christophe), Invernizzi, P. (Pietro), Mayo, M.J. (Marlyn J.), Battezzati, P.M. (Pier Maria), Floreani, A. (Annarosa), Parés, A. (Albert), Nevens, F. (Frederik), Kowdley, K.V. (Kris), Bruns, T. (Tony), Dalekos, G. (George), Thorburn, D. (Douglas), Hirschfield, G.M. (Gideon), Larusso, N.F. (Nicholas F.), Lindor, K.D. (Keith), Zachou, K. (Kalliopi), Poupon, R. (Raoul), Trivedi, P.J. (Palak J.), Verhelst, X. (Xavier), Janssen, H.L.A. (Harry), Hansen, B.E. (Bettina), Murillo Perez, C.F. (Carla), Goet, J.C. (Jorn C.), Lammers, W.J. (Wim), Gulamhusein, A. (Aliya), Buuren, H.R. (Henk) van, Ponsioen, C.Y. (Cyril), Carbone, M. (Marco), Mason, A. (Andrew), Corpechot, C. (Christophe), Invernizzi, P. (Pietro), Mayo, M.J. (Marlyn J.), Battezzati, P.M. (Pier Maria), Floreani, A. (Annarosa), Parés, A. (Albert), Nevens, F. (Frederik), Kowdley, K.V. (Kris), Bruns, T. (Tony), Dalekos, G. (George), Thorburn, D. (Douglas), Hirschfield, G.M. (Gideon), Larusso, N.F. (Nicholas F.), Lindor, K.D. (Keith), Zachou, K. (Kalliopi), Poupon, R. (Raoul), Trivedi, P.J. (Palak J.), Verhelst, X. (Xavier), Janssen, H.L.A. (Harry), and Hansen, B.E. (Bettina)
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Changes over time in the presenting features and clinical course of patients with primary biliary cholangitis are poorly described. We sought to describe temporal trends in patient and disease characteristics over a 44-year period across a large international primary biliary cholangitis cohort of 4,805 patients diagnosed between 1970 and 2014, from 17 centers across Europe and North America. Patients were divided into five cohorts according to their year of diagnosis: 1970-1979 (n = 143), 1980-1989 (n = 858), 1990-1999 (n = 1,754), 2000-2009 (n = 1,815), and ≥2010 (n = 235). Age at diagnosis, disease stage, response to ursodeoxycholic acid, and clinical outcomes were compared. Mean age at diagnosis increased incrementally by 2-3 years per decade from 46.9 ± 10.1 years in the 1970s to 57.0 ± 12.1 years from 2010 onward (P < 0.001). The female to male ratio (9:1) and antimitochondrial antibody positivity (90%) were not significantly variable. The proportion of patients presenting with mild biochemical disease (according to Rotterdam staging) increased from 41.3% in the 1970s to 72.2% in the 1990s (P < 0.001) and remained relatively stable thereafter. Patients with a mild histological stage at diagnosis increased from 60.4% (1970-1989) to 76.5% (1990-2014) (P < 0.001). Correspondingly, response to ursodeoxycholic acid according to Paris-I criteria increased; 51.7% in the 1970s and 70.5% in the 1990s (P < 0.001). Recent decades were also characterized by lower decompensation rates (18.5% in the 1970s to 5.8% in the 2000s, P < 0.001) and higher 10-year transplant-free survival (48.4%, 68.7%, 79.7%, and 80.1% for each respective cohort; P < 0.001). Conclusion: In recent decades, a pattern of primary biliary cholangitis presentation consistent with an older age at diagnosis alongside reduced disease severity has been noted; the observed trends may be explained by an increase in routine testing of liver function and/or a changing environmental trigger.
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- 2018
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7. Prothrombin complex concentrate in the reduction of blood loss during orthotopic liver transplantation: PROTON-trial
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Arshad, F. (Freeha), Ickx, B. (Brigitte), Beem, R.T. (Rachel) van, Polak, W.G. (Wojciech), Grüne, F. (Frank), Nevens, F. (Frederik), Ilmakunnas, M. (Minna), Koivusalo, A.M. (Anna-Maria), Isoniemi, H. (Helena), Strengers, P.F.W., Groen, H.J.M. (Henk), Hendriks, H.G.D. (Herman), Lisman, T. (Ton), Pirenne, J. (Jacques), Porte, R.J. (Robert), Arshad, F. (Freeha), Ickx, B. (Brigitte), Beem, R.T. (Rachel) van, Polak, W.G. (Wojciech), Grüne, F. (Frank), Nevens, F. (Frederik), Ilmakunnas, M. (Minna), Koivusalo, A.M. (Anna-Maria), Isoniemi, H. (Helena), Strengers, P.F.W., Groen, H.J.M. (Henk), Hendriks, H.G.D. (Herman), Lisman, T. (Ton), Pirenne, J. (Jacques), and Porte, R.J. (Robert)
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Background: In patients with cirrhosis, the synthesis of coagulation factors can fall short, reflected by a prolonged prothrombin time. Although anticoagulants factors are decreased as well, blood loss during orthotopic liver transplantation can still be excessive. Blood loss during orthotopic liver transplantation is currently managed by transfusion of red blood cell concentrates, platelet concentrates, fresh frozen plasma, and fibrinogen concentrate. Transfusion of these products may paradoxically result in an increased bleeding tendency due to aggravated portal hypertension. The hemostatic effect of these products may therefore be overshadowed by bleeding complications due to volume overload.In contrast to these transfusion products, prothrombin complex concentrate is a low-volume highly purified concentrate, containing the four vitamin K dependent coagulation factors. Previous studies have suggested that administration of prothrombin complex concentrate is an effective method to normalize a prolonged prothrombin time in patients with liver cirrhosis. We aim to investigate whether the pre-operative administration of prothrombin complex concentrate in patients undergoing liver transplantation for end-stage liver cirrhosis, is a safe and effective method to reduce perioperative blood loss and transfusion requirements. Methods/Design. This is a double blind, multicenter, placebo-controlled randomized trial.Cirrhotic patients with a prolonged INR (≥1.5) undergoing liver transplantation will be randomized between placebo or prothrombin complex concentrate administration prior to surgery. Demographic, surgical and transfusion data will be recorded. The primary outcome of this study is RBC transfusion requirements. Discussion. Patients with advanced cirrhosis have reduced plasma levels of both pro- and anticoagulant coagulation proteins. Prothrombin complex concentrate is a low-volume plasma product that contains both procoagulant and anticoagulant proteins and transfus
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- 2013
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8. Long term clinical outcome of chronic hepatitis C patients with sustained virological response to interferon monotherapy
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Veldt, B.J. (Bart), Saracco, G., Boyer, N., Camma, C., Bellobuono, A. (Antonio), Hopf, U., Castillo, I., Weiland, O. (Ola), Nevens, F. (Frederik), Hansen, B.E. (Bettina), Schalm, S.W. (Solko), Veldt, B.J. (Bart), Saracco, G., Boyer, N., Camma, C., Bellobuono, A. (Antonio), Hopf, U., Castillo, I., Weiland, O. (Ola), Nevens, F. (Frederik), Hansen, B.E. (Bettina), and Schalm, S.W. (Solko)
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Background: The key end point for treatment efficacy in chronic hepatitis C is absence of detectable virus at six months after treatment. However, the incidence of clinical events during long term follow up of patients with sustained virological response is still poorly documented and may differ between the Eastern and Western world. Aims: To assess clinical end points during long term follow up of European patients with a sustained virological response to interferon monotherapy. Methods: Meta-analysis of individual patient data from eight European protocolled follow up studies of interferon treatment for chronic hepatitis C. Results: A total of 286 sustained virological responders and 50 biochemical responders (detectable virus but normal alanine aminotransferase levels) were followed up for 59 months. Fifteen sustained virological responders (5.2%) had cirrhosis before treatment and 112 (39%) had genotype 1. The late virological relapse rate after five years of follow up was 4.7% (95% confidence interval (CI) 2.0-7.4) among sustained virological responders; all late relapses occurred within four years after treatment. Among sustained virological responders, the rate of decompensation after five years of fo
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- 2004
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9. Retreatment of hepatitis C non-responsive to interferon. A placebo controlled randomized trial of ribavirin monotherapy versus combination therapy with Ribavirin and Interferon in 121 patients in the Benelux [ISRCTN53821378].
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Veldt, B.J. (Bart), Brouwer, J.T. (Johannes), Adler, M. (Michael), Nevens, F. (Frederik), Michielsen, P. (Peter), Delwaide, J. (Jean), Hansen, B.E. (Bettina), Schalm, S.W. (Solko), Veldt, B.J. (Bart), Brouwer, J.T. (Johannes), Adler, M. (Michael), Nevens, F. (Frederik), Michielsen, P. (Peter), Delwaide, J. (Jean), Hansen, B.E. (Bettina), and Schalm, S.W. (Solko)
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BACKGROUND: Evidence based medicine depends on unbiased selection of completed randomized controlled trials. For completeness it is important to publish all trials. This report describes the first large randomised controlled trial where combination therapy was compared to placebo therapy and to ribavirin monotherapy, which has not been published until now. METHODS: One hundred and twenty one patients with chronic hepatitis C and elevated transaminases who did not respond to previous treatment with standard inte
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- 2003
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