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    • Evelien Dekker
    • Evelien Dekker

      Evelien Dekker

      Amsterdam University Medical Centers location University of Amsterdam, Department of Gastroenterology and Hepatology, Amsterdam, the Netherlands; Amsterdam Gastroenterology ...



      KOL Resume for Evelien Dekker


      Amsterdam University Medical Centers location University of Amsterdam, Department of Gastroenterology and Hepatology, Amsterdam, the Netherlands; Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam, the Netherlands; Cancer Center Amsterdam, Amsterdam, the Netherlands.


      Department of Gastroenterology and Hepatology, Cancer Center Amsterdam, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands


      Department of Gastroenterology and Hepatology, Academic Medical Centre, Amsterdam, The Netherlands


      Gastroenterology and Hepatology, Academic Medical Center, Amsterdam, the Netherlands.

      Amsterdam UMC (Netherlands)


      Department of Gastroenterology and Hepatology, Academic Medical Center University of Amsterdam, Amsterdam, the Netherlands

      See end of article for the full list of members of the DISCOUNT study group



      Evelien Dekker: Influence Statistics

      Sample of concepts for which Evelien Dekker is among the top experts in the world.
      Concept World rank
      fit false #1
      colonoscopy ctcolonography #1
      advice qualitative study #1
      cancer risk fap #1
      advanced serrated polyps #1
      decision genetic screening #1
      5 hgd #1
      treitz fap #1
      identifying hereditary #1
      dysplasia detected #1
      celecoxib udca fap #1
      simple educational #1
      crc crc screening #1
      participants advanced neoplasia #1
      guidelines serrated #1
      patients serrated #1
      dutch bowel #1
      detected surveillance #1
      serrated polyps surveillance #1
      dysplasiareporting increase #1
      personalised surveillance #1
      map duodenal polyposis #1
      nonexperts specificity #1
      child disease surveillance #1
      duodenal polyp density #1
      crc screening test #1
      neoplasia detection wle #1
      detection endoscopists #1
      participants positive fit #1
      optical diagnosis adenomas #1
      colorectal cancer qualitative #1
      communication skills feasibility #1
      neoplasia crc #1
      ewave #1
      prevalence sps #1
      interviewed gps #1
      training session pspdr #1
      icle sensitivity #1
      respondents anxiety worries #1
      fap 5 #1
      differentiating dysplastic #1
      molecular stool #1
      proven germline mutation #1
      quality indicators colonoscopies #1
      general gastroenterologists #1
      advanced stage yield #1
      comprehension communication skills #1
      sessile serrated lesions #1
      duodenal gastric polyposis #1
      fitpositive screenees #1


      Prominent publications by Evelien Dekker

      KOL-Index: 21676

      OBJECTIVE: Fecal immunochemical testing (FIT) is increasingly used for colorectal cancer (CRC) screening. We aimed to estimate its diagnostic accuracy in invitational population screening measured against colonoscopy.

      METHODS: Participants (50-75 years) in an invitational primary colonoscopy screening program were asked to complete one sample FIT before colonoscopy. We estimated FIT sensitivity, specificity, and predictive values in detecting CRC and advanced neoplasia (carcinomas and ...

      Known for Advanced Neoplasia | Sensitivity Specificity | 95 Crc | Occult Blood | Immunochemical Fecal
      KOL-Index: 19633

      BACKGROUND: Endoscopic tri-modal imaging (ETMI) incorporates white light endoscopy (WLE), autofluorescence imaging (AFI) and narrow-band imaging (NBI).

      AIMS: To assess the value of ETMI for the detection and classification of neoplasia in patients with longstanding ulcerative colitis.

      DESIGN: Randomised comparative trial of tandem colonoscopies.

      SETTING: Academic Medical Centre Amsterdam, Netherlands.

      PATIENTS AND METHODS: Fifty patients with ulcerative colitis underwent surveillance ...

      Known for Ulcerative Colitis | Neoplasia Detection | Afi Wle | Autofluorescence Imaging | Nbi Patients
      KOL-Index: 18431

      BACKGROUND: Screening for colorectal cancer is widely recommended, but the preferred strategy remains unidentified. We aimed to compare participation and diagnostic yield between screening with colonoscopy and with non-cathartic CT colonography.

      METHODS: Members of the general population, aged 50-75 years, and living in the regions of Amsterdam or Rotterdam, identified via the registries of the regional municipal administration, were randomly allocated (2:1) to be invited for primary ...

      Known for Colorectal Cancer | Colonoscopy Colonography | Advanced Neoplasia | Diagnostic Yield | Based Screening
      KOL-Index: 17415

      BACKGROUND: Lynch syndrome is a disorder caused by mismatch repair gene mutations. Mutation carriers have a high risk of developing colorectal cancer. In patients with Lynch syndrome in whom colon cancer has been diagnosed, in general, subtotal colectomy instead of partial colectomy is recommended because of the substantial risk of metachronous colorectal cancer. However, the effect of more extensive surgery on quality of life and functional outcome is unknown.

      OBJECTIVE: The aim of this ...

      Known for Lynch Syndrome | Colon Cancer | Quality Life | Subtotal Colectomy | Functional Outcome
      KOL-Index: 17235

      BACKGROUND AND STUDY AIM: Patients with longstanding ulcerative colitis are at increased risk of developing colorectal cancer. Colonoscopic surveillance is advised, but the detection of neoplasia by conventional colonoscopy is difficult. The aim of this study was to compare the accuracy of narrow-band imaging (NBI), a new imaging technique, with standard colonoscopy for the detection of neoplasia in patients with longstanding ulcerative colitis.

      PATIENTS AND METHODS: This was a ...

      Known for Conventional Colonoscopy | Longstanding Ulcerative Colitis | Neoplasia Patients | Targeted Biopsies | Band Imaging
      KOL-Index: 15927

      MAIN RECOMMENDATIONS: The following recommendations for post-polypectomy endoscopic surveillance should be applied only after a high quality baseline colonoscopy with complete removal of all detected neoplastic lesions.1 In the low risk group (patients with 1 - 2 tubular adenomas < 10 mm with low grade dysplasia), the ESGE recommends participation in existing national screening programmes 10 years after the index colonoscopy. If no screening programme is available, repetition of ...

      Known for Colonoscopy Surveillance | Strong Recommendation | Gastrointestinal Endoscopy | European Society | Risk Adenomas
      KOL-Index: 15923

      BACKGROUND & AIMS: Among subjects screened for colorectal cancer (CRC) by the guaiac fecal occult blood test, interval cancers develop in 48% to 55% of the subjects. Data are limited on how many persons screened by fecal immunochemical tests (FIT), over multiple rounds, develop interval cancers. In the Netherlands, a pilot FIT-based biennial CRC screening program was conducted between 2006 and 2014. We collected and analyzed data from the program on CRCs detected during screening ...

      Known for Multiple Rounds | Colorectal Cancer | Crc Fit | Fecal Immunochemical | Occult Blood
      KOL-Index: 15129

      This manuscript represents an official Position Statement of the European Society of Gastrointestinal Endoscopy (ESGE) aiming to guide general gastroenterologists to develop and maintain skills in optical diagnosis during endoscopy. In general, this requires additional training beyond the core curriculum currently provided in each country. In this context, ESGE have developed a European core curriculum for optical diagnosis practice across Europe for high quality optical diagnosis ...

      Known for Optical Diagnosis | Gastrointestinal Endoscopy | European Society | Position Statement | Minimum Lesions
      KOL-Index: 15070

      BACKGROUND: Constitutive Wnt activation is essential for colorectal cancer (CRC) initiation but also underlies the cancer stem cell phenotype, metastasis and chemosensitivity. Importantly Wnt activity is still modulated as evidenced by higher Wnt activity at the invasive front of clonal tumours termed the β-catenin paradox. SMAD4 and p53 mutation status and the bone morphogenetic protein (BMP) pathway are known to affect Wnt activity. The combination of SMAD4 loss, p53 mutations and BMP ...

      Known for Wnt Pathway | Bmp Signalling | Crc Smad4 | Protein P53 | Β Catenin
      KOL-Index: 14927

      BACKGROUND & AIMS: Endoscopic trimodal imaging (ETMI) incorporates high-resolution endoscopy (HRE) and autofluorescence imaging (AFI) for adenoma detection, and narrow-band imaging (NBI) for differentiation of adenomas from nonneoplastic polyps. The aim of this study was to compare AFI with HRE for adenoma detection and to assess the diagnostic accuracy of NBI for differentiation of polyps. This was a randomized trial of tandem colonoscopies. The study was performed at the Academic ...

      Known for Colonic Polyps | Hre Afi | Endoscopic Trimodal Imaging | Adenoma Detection | Clinical Evaluation
      KOL-Index: 14609

      BACKGROUND & AIMS: Despite poor performance, guaiac-based fecal occult blood tests (G-FOBT) are most frequently implemented for colorectal cancer screening. Immunochemical fecal occult blood tests (I-FOBT) are claimed to perform better, without randomized comparison in screening populations. Our aim was to randomly compare G-FOBT with I-FOBT in a screening population.

      METHODS: We conducted a population-based study on a random sample of 20,623 individuals 50-75 years of age, randomized to ...

      Known for Screening Population | Random Comparison | Advanced Adenomas | Blood Tests | Colorectal Cancer
      KOL-Index: 14482

      BACKGROUND & AIMS: Two percent to 4% of all cases of colorectal cancer (CRC) are associated with Lynch syndrome. Dominant clustering of CRC (non-Lynch syndrome) accounts for 1%-3% of the cases. Because carcinogenesis is accelerated in Lynch syndrome, an intensive colonoscopic surveillance program has been recommended since 1995. The aim of the study was to evaluate the effectiveness of this program.

      METHODS: The study included 205 Lynch syndrome families with identified mutations in one ...

      Known for Lynch Syndrome | Surveillance Intervals | Colorectal Cancer | Risk Crc | 1 Muts
      KOL-Index: 14425

      BACKGROUND: The effectiveness of colorectal cancer screening programs based on the fecal immunochemical test (FIT) is influenced by program adherence during consecutive screening rounds. We aimed to evaluate the participation rate, yield, and interval cancers in a third round of biennial CRC screening using FIT and to compare those with the first and the second screening round.

      METHODS: A total of 3566 average-risk individuals aged 50-75 years were invited to participate in a third round ...

      Known for Cancer Screening | Based Colorectal | Advanced Neoplasia | Participants Round | Biennial Fit
      KOL-Index: 14260

      BACKGROUND & AIMS: Consecutive rounds of fecal occult blood tests (FOBTs) are used to screen for colorectal cancer (CRC); they detect precursor lesions and early-stage disease. We assessed whether the positivity rate and the positive predictive values (PPVs) for advanced neoplasia and CRC decrease with repeated testing by using fecal immunochemical tests (FITs).

      METHODS: Data were collected from 2 rounds of screening. In the first round, average-risk persons (50 to 74 years old) were ...

      Known for Advanced Neoplasia | Colorectal Cancer | Fit Round | Lower Risk | Fecal Test

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      Evelien Dekker:Expert Impact

      Concepts for whichEvelien Dekkerhas direct influence:Colorectal cancer,  Optical diagnosis,  Advanced neoplasia,  Gastrointestinal endoscopy,  Lynch syndrome,  Familial adenomatous polyposis,  Glucose production,  Cancer screening.

      Evelien Dekker:KOL impact

      Concepts related to the work of other authors for whichfor which Evelien Dekker has influence:Colorectal cancer,  Lynch syndrome,  Early detection,  Bowel preparation,  Serrated polyps,  Ulcerative colitis,  Venous thromboembolism.



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      Amsterdam University Medical Centers location University of Amsterdam, Department of Gastroenterology and Hepatology, Amsterdam, the Netherlands; Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam, the Netherlands; Cancer Center Amsterdam

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