Publications by authors named "Ignace Janssen"

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Association of Weight Loss Composition Following Metabolic-Bariatric Surgery With Incident Major Adverse Cardiovascular Events and All-Cause Mortality.
Malou A H Nuijten, Bente M de Roos, Jan H M Karregat, Eric J Hazebroek, Valerie M Monpellier, Ignace M C Janssen

Clin Obes· February 2026

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Getting back on track: Development of a blended-care intervention for weight recurrence after metabolic bariatric surgery using intervention mapping.
Vera Voorwinde, Ingrid H M Steenhuis, Ignace M C Janssen, Valerie M Monpellier, Maartje M van Stralen

PEC Innov· June 2025

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A Core set of patient-reported outcome measures to measure quality of life in obesity treatment research.
Phillip J Dijkhorst, Claire E E de Vries, Caroline B Terwee, Ignace M C Janssen, Ronald S L Liem

Obes Rev· February 2025

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Long-Term Weight Loss and Attendance Outcomes Following Metabolic and Bariatric Surgery: An Evaluation of The Cleveland Clinic Behavioral Rating System.
Anne Jacobs, Karlijn Vermeer, Anna N Slok, Ignace M C Janssen, Rob A E M Tollenaar

Obes Surg· November 2024

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Core Set of Patient-Reported Outcome Measures for Measuring Quality of Life in Clinical Obesity Care.
Phillip J Dijkhorst, Valerie M Monpellier, Caroline B Terwee, Ronald S L Liem, Bart A van Wagensveld, Ignace M C Janssen

Obes Surg· August 2024

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Influence of mental and behavioral factors on weight loss after bariatric surgery: A systematic review and meta-analysis.
Anne Jacobs, Valerie M Monpellier, Bart Torensma, Evangelia E Antoniou, Ignace M C Janssen

Obes Rev· June 2024

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Evaluation of Healthcare Utilisation and Expenditures in Persons with Type 2 Diabetes Undergoing Bariatric-Metabolic Surgery.
Valerie M Monpellier, Rose J Geurten, Ignace M C Janssen, Dirk Ruwaard, Jeroen N Struijs

Obes Surg· March 2024

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Genetic variants associated with weight loss and metabolic outcomes after bariatric surgery: A systematic review.
Rieneke van der Meer, Siham A Mohamed, Valerie M Monpellier, Ronald S L Liem, Eric J Hazebroek, Ignace M C Janssen

Obes Rev· December 2023

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How to get back on track? Experiences of patients and healthcare professionals regarding weight recurrence and needs for an intervention after bariatric-metabolic surgery.
Vera Voorwinde, Sahar Moukadem, Maartje M van Stralen, Ignace M C Janssen, Valerie M Monpellier

Obes Pillars· September 2023

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Changes in Fat-Free Mass, Protein Intake and Habitual Physical Activity Following Roux-en-Y Gastric Bypass Surgery: A Prospective Study.
Malou A H Nuijten, Thijs M H Eijsvogels, Boy Sanders, Laura M Vriese, Valerie M Monpellier, Ignace M C Janssen

Obes Surg· July 2023

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Barriers to and Facilitators of Participation in Weight Loss Intervention for Patients with Suboptimal Weight Loss after Bariatric Surgery: A Qualitative Study among Patients, Physicians, and Therapists.
Onno M Tettero, Marjan J Westerman, Maartje M van Stralen, Meike van den Beuken, Valerie M Monpellier, Ignace M C Janssen

Obes Facts· October 2022

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Early Postoperative Weight Loss Predicts Weight Loss up to 5 Years After Roux-En-Y Gastric Bypass, Banded Roux-En-Y Gastric Bypass, and Sleeve Gastrectomy.
Onno M Tettero, Valerie M Monpellier, Ignace M C Janssen, Ingrid H M Steenhuis, Maartje M van Stralen

Obes Surg· September 2022

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Outcomes of the first global multidisciplinary consensus meeting including persons living with obesity to standardize patient-reported outcome measurement in obesity treatment research.
Claire E E de Vries, Caroline B Terwee, May Al Nawas, Bart A van Wagensveld, Ignace M C Janssen

Obes Rev· August 2022

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Five-year weight loss, physical activity, and eating style trajectories after bariatric surgery.
Vera Voorwinde, Trynke Hoekstra, Valerie M Monpellier, Ingrid H M Steenhuis, Ignace M C Janssen

Surg Obes Relat Dis· July 2022

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The magnitude and progress of lean body mass, fat-free mass, and skeletal muscle mass loss following bariatric surgery: A systematic review and meta-analysis.
Malou A H Nuijten, Thijs M H Eijsvogels, Valerie M Monpellier, Ignace M C Janssen, Eric J Hazebroek

Obes Rev· January 2022

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Is the RAND-36 an Adequate Patient-reported Outcome Measure to Assess Health-related Quality of Life in Patients Undergoing Bariatric Surgery?
Claire E E de Vries, Dennis J S Makarawung, Valerie M Monpellier, Ignace M C Janssen, Steve M M de Castro

Obes Surg· January 2022

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Weight loss after bariatric surgery: a comparison between delayed and immediate qualification according to the last resort criterion.
Anne Jacobs, Ronald S L Liem, Ignace M C Janssen, Rob A E M Tollenaar, Valerie M Monpellier

Surg Obes Relat Dis· April 2021

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Changes in Physical Activity in Relation to Body Composition, Fitness and Quality of Life after Primary Bariatric Surgery: a Two-Year Follow-Up Study.
Malou A H Nuijten, Onno M Tettero, Rens J Wolf, Esmée A Bakker, Thijs M H Eijsvogels, Ignace M C Janssen

Obes Surg· March 2021

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A randomized controlled trial comparing oral and intravenous iron supplementation after Roux-en-Y gastric bypass surgery.
Wendy Schijns, Abel Boerboom, Margot de Bruyn Kops, Christel de Raaff, Bart van Wagensveld, Ignace M C Janssen

Clin Nutr· December 2020

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Standardized reporting of co-morbidity outcome after bariatric surgery: low compliance with the ASMBS outcome reporting standards despite ease of use.
Pascal M Burger, Valerie M Monpellier, Laura N Deden, Laurens B R Kooiman, Ronald S L Liem, Ignace M C Janssen

Surg Obes Relat Dis· November 2020

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Rate and Determinants of Excessive Fat-Free Mass Loss After Bariatric Surgery.
Malou A H Nuijten, Valerie M Monpellier, Thijs M H Eijsvogels, Ignace M C Janssen, Eric J Hazebroek

Obes Surg· August 2020

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Bariatric surgery in patients with psychiatric comorbidity: Significant weight loss and improvement of physical quality of life.
Karlijn J Vermeer, Valerie M Monpellier, Wiepke Cahn, Ignace M C Janssen

Clin Obes· August 2020

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Health-related quality of life after sleeve gastrectomy equal to Roux-en-Y gastric bypass patients?
Valerie M Monpellier, Luella W Smith, Vera Voorwinde, Ignace M C Janssen, Maartje M van Stralen

Qual Life Res· July 2020

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RBP4 increases lipolysis in human adipocytes and is associated with increased lipolysis and hepatic insulin resistance in obese women.
Murat Kilicarslan, Barbara A de Weijer, Kotryna Simonyté Sjödin, Pratik Aryal, Kasper W Ter Horst, Ignace M Janssen

FASEB J· May 2020

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Definitions of Long-Term Weight Regain and Their Associations with Clinical Outcomes.
Vera Voorwinde, Ingrid H M Steenhuis, Ignace M C Janssen, Valerie M Monpellier, Maartje M van Stralen

Obes Surg· February 2020

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