Michiel T. J. Bak

ORCID: 0000-0001-8515-425X
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Research Areas
  • Anorectal Disease Treatments and Outcomes
  • Inflammatory Bowel Disease
  • Diverticular Disease and Complications
  • Microscopic Colitis
  • Autoimmune and Inflammatory Disorders
  • Colorectal and Anal Carcinomas
  • Gastric Cancer Management and Outcomes
  • Pancreatic and Hepatic Oncology Research
  • Colorectal Cancer Screening and Detection
  • Hidradenitis Suppurativa and Treatments
  • Body Contouring and Surgery
  • Gallbladder and Bile Duct Disorders
  • Therapeutic Uses of Natural Elements
  • Eosinophilic Esophagitis
  • Stoma care and complications
  • Gastrointestinal Bleeding Diagnosis and Treatment
  • Streptococcal Infections and Treatments
  • Infectious Diseases and Tuberculosis
  • Nutrition and Health in Aging
  • Enhanced Recovery After Surgery
  • Pediatric Hepatobiliary Diseases and Treatments
  • Colorectal Cancer Surgical Treatments

Erasmus MC
2022-2025

Azienda USL di Bologna
2023

Maastricht University
2023

Istituti di Ricovero e Cura a Carattere Scientifico
2023

University Medical Center Utrecht
2018-2022

Transanal advancement flap repair (TAFR) fails in approximately 30–40% of patients with a cryptoglandular transsphincteric fistula. An additional intraoperative injection autologous platelet-rich stroma (PRS) TAFR proved to be safe, feasible, and effective the short term for treatment fistula tertiary referral center. In this study, we assessed long-term outcomes who were treated an PRS (n = 43). The majority (88%) had complex (high and/or multiple side tracts) underwent (one or more)...

10.3390/bioengineering12020105 article EN cc-by Bioengineering 2025-01-23

ABSTRACT Background The impact of prophylactic medication following ileocecal resection (ICR) for Crohn's disease (CD) merits further elucidation. Prophylactic is recommended in patients with Crohn’s (CD), particularly at increased risk recurrence, but the on long‐term outcomes needs to be elucidated. Aim To evaluate effect postoperative prognosis. Methods A retrospective cohort study was performed CD who underwent primary ICR between 2000‐2020 Netherlands. Patients were divided into two...

10.1111/apt.18496 article EN cc-by-nc Alimentary Pharmacology & Therapeutics 2025-01-24

INTRODUCTION: The prognostic value of the modified Rutgeerts score (mRS) in patients with Crohn's disease (CD) needs to be further elucidated. This study assessed mRS for long-term outcomes after primary ileocecal resection CD. METHODS: Patients CD an available at first postoperative ileocolonoscopy (index mRS) were retrospectively included. outcome was surgical recurrence. Secondary clinical recurrence and progression severe endoscopic (≥i3). Cox proportional hazard models used assess...

10.14309/ajg.0000000000002509 article EN cc-by The American Journal of Gastroenterology 2023-09-22

Background and Aims The modified Rutgeerts' score (mRS) is widely used for the assessment of endoscopic postoperative recurrence (ePOR) in Crohn's disease (CD) after ileocolic resection to guide therapeutic decisions. To improve validity prognostic value this assessment, two new scores have been proposed. This study assessed interobserver agreement current ePOR CD. Methods Sixteen Dutch academic non-academic IBD specialists videos (n=71) CD patients (n=66) retrieved from nine centers. Each...

10.1016/j.gie.2024.03.011 article EN cc-by Gastrointestinal Endoscopy 2024-03-08

Patients with refractory inflammatory bowel disease (IBD) might require a subtotal colectomy construction of an ileostomy. Due to the risk nerve damage and pelvic sepsis, diverted rectum is often left in situ. Evidence on long-term complications this rectal stump limited, particularly patients Crohn's (CD). In addition development neoplasia, diversion proctitis frequently reported associated complication. Surprisingly, clear recommendations concerning surveillance timing proctectomy are...

10.1093/ibd/izy253 article EN Inflammatory Bowel Diseases 2018-08-01

Summary Background Risk stratification for endoscopic post‐operative recurrence (ePOR) in Crohn's disease (CD) is required to identify patients who would benefit most from initiation of prophylactic medication and intensive monitoring recurrence. Aims To assess the current evidence on patient‐related, microbial, surgical histopathological risk factors ePOR with CD after ileocolic (re‐)resection. Methods Multiple online databases (Embase, MEDLINE, Web Science Cochrane Library) were searched...

10.1111/apt.18040 article EN cc-by-nc Alimentary Pharmacology & Therapeutics 2024-06-17

Current guidelines recommend endoscopic resection of visible and endoscopically resectable colorectal colitis-associated neoplasia (CAN) in patients with inflammatory bowel disease (IBD). However, high-risk CAN (HR-CAN) are often not amenable to conventional techniques, a consensus approach for the management these lesions is presently lacking. This Delphi study aims reach among experts on lesions.A 3-round modified process was conducted worldwide IBD and/or endoscopy (n = 18) from 3...

10.1016/j.gie.2022.12.005 article EN cc-by Gastrointestinal Endoscopy 2022-12-09

Reaching the Selecting Therapeutic Targets in Inflammatory Bowel Disease-II (STRIDE-II) therapeutic targets for inflammatory bowel disease (IBD) requires an interdisciplinary approach. Lifestyle interventions focusing on enhancing and preserving health-related physical fitness (HRPF) may aid improving subjective health, decreasing disability, or even controlling inflammation. However, ambiguity remains about status impact of HRPF (i.e. body composition, cardiorespiratory fitness, muscular...

10.3748/wjg.v29.i38.5406 article EN cc-by-nc World Journal of Gastroenterology 2023-10-11

Abstract Patients with perianal fistulas are frequently treated by a knotted seton which is well-known for causing complaints. We aimed to assess the feasibility of knotless SuperSeton and advantages respect disease activity. In prospective cohort study, we included all consecutive adult patients in situ or fistula requiring new drainage. Primary endpoint was (maintenance connection minimally three months). Secondary endpoints improvement Perianal Disease Activity Index (PDAI), complications...

10.1038/s41598-020-73737-2 article EN cc-by Scientific Reports 2020-10-07

Endorectal advancement flap repair is often performed for the treatment of cryptoglandular transsphincteric fistulas. However, this procedure fails in approximately 1 4 patients. Based on its supposed healing properties, platelet-rich plasma might enhance outcome procedure.

10.1097/dcr.0000000000003312 article EN Diseases of the Colon & Rectum 2024-05-03

Standard therapy for grade III hemorrhoids is rubber band ligation (RBL) and hemorrhoidectomy. The long-term clinical patient-reported outcomes of these treatments in a tertiary referral center proctology were evaluated.A retrospective analysis was performed all patients with who treated between January 2013 August 2018. Medical history, symptoms, reinterventions, complications, outcome measurements (PROM) retrieved from individual electronic patient files, which prospectively entered as...

10.3393/ac.2020.01011.0144 article EN cc-by-nc Annals of Coloproctology 2021-07-27
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