Publications by authors named "Loek de Heide"

This study aims to give a comprehensive overview of the one anastomosis gastric bypass (OAGB) and Roux-en-Y gastric bypass (RYGB) during 5 years of follow-up in terms of weight loss, the remission of obesity-associated diseases and complications. We performed a retrospective cohort study, with a 1:1 propensity-score matched (PSM) comparison between all adult patients who underwent a primary OAGB or RYGB in 2016. Patients with a body mass index (BMI) ≥50 kg/m were excluded.

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Introduction: Body mass index (BMI) ≥50 kg/m2 is more challenging for the metabolic bariatric surgeon because of a thicker abdominal wall, more visceral fat, and hepatomegaly by liver steatosis. This study aimed to give an overview of 5-year outcomes after one anastomosis gastric bypass (OAGB) and Roux-en-Y gastric bypass (RYGB) in these patients in terms of weight loss, remission of comorbidities, and complications.

Methods: This retrospective single-center cohort study focused on patients with BMI ≥50 kg/m2 undergoing OAGB or RYGB between 2015 and 2017 at a nonacademic teaching hospital in the Netherlands.

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Background: Tailoring the biliopancreatic limb length in one anastomosis gastric bypass is proposed as beneficial in retrospective studies, yet randomized trials are lacking. The aim of this double-blind, single-centre RCT was to ascertain whether tailoring biliopancreatic limb length based on total small bowel length (TSBL) results in superior outcomes after one anastomosis gastric bypass compared with a fixed 150 cm biliopancreatic limb length.

Methods: Eligible patients, meeting International Federation for the Surgery of Obesity and Metabolic Disorders (IFSO) criteria for metabolic bariatric surgery, scheduled for primary one anastomosis gastric bypass surgery, and willing to be randomized, underwent TSBL measurement during surgery.

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Introduction: Determining limb length in gastric bypass procedures is a crucial step to ensure significant weight loss without risking malnutrition. This study investigated the effect of ex vivo training on the skills needed to determine limb lengths.

Materials And Methods: This was a single-center ex vivo training experiment in a teaching hospital in the Netherlands.

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Article Synopsis
  • This study examines the link between muscle mass and the prevalence and incidence of type 2 diabetes, assessing differences based on gender and weight status (normal, overweight, obesity).* -
  • Data was obtained from the Lifelines cohort study, defining low muscle mass using creatinine excretion rates and employing multivariate logistic regression to analyze the relationship with diabetes outcomes.* -
  • Results indicate that low muscle mass is significantly associated with a higher prevalence (1.51 for men and 1.53 for women) and incidence of diabetes, particularly prominent in individuals with normal weight.*
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Aim: To evaluate medical and surgical treatment of postbariatric hypoglycaemia (PBH) in daily practice.

Materials And Methods: Retrospective data were extracted from medical records from four hospitals. PBH was defined by neuroglycopenic symptoms together with a documented glucose <3.

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Background: The beneficial effects of bariatric surgery on type 2 diabetes can come at a price : the development of postprandial hypoglycaemia, also called post-bariatric hypoglycaemia (PBH). PBH is to some extend present in almost all patients after bariatric surgery but can sometimes lead to serious hypoglycaemia.

Case Description: A 53 year old woman experienced periods with reduced consciousness eventually leading to a fall from the stairs with fracturing of her shoulder and ankle.

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Background: The one anastomosis gastric bypass (OAGB) is being performed by an increasing number of bariatric centers over the world. However, the optimal length of the biliopancreatic (BP) limb remains a topic of discussion. Retrospective studies suggest the benefit of tailoring BP-limb length; however, randomized trials are lacking.

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Introduction: Tailoring limb length in bariatric surgery is a subject of many studies. To acquire the optimal limb length, accurate measurement of the small bowel length is essential.

Objective: To assess the intra- and inter-individual variability of laparoscopic bowel length measurement using a hand-over-hand technique with marked graspers.

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Background: The aim of this study was to evaluate the effect of bariatric surgery on the defined daily dose of levothyroxine (DDD LT4), thyroid-stimulating hormone (TSH), and free thyroxine (fT4) in female patients with hypothyroidism until 48 months after surgery.

Methods: A retrospective observational study of hypothyroid patients who underwent bariatric surgery. Changes in DDD LT4, TSH, and fT4 over a 48 month period after surgery were analyzed.

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Introduction: One anastomosis gastric bypass (OAGB) is an effective and safe treatment for morbidly obese patients. Longer biliopancreatic (BP) limb length is suggested to result in better weight loss outcomes, but to date, no data are available for the OAGB to substantiate this. We hypothesized that applying a longer BP-limb length in the higher BMI classes would result in more weight reduction so that the attained BMI would be comparable to patients with a lower BMI, thereby compensating for differences in baseline BMI.

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Background: Dumping syndrome (DS) and postbariatric hypoglycemia (PBH) are frequent complications of bariatric surgery. Previously known as "early and late dumping," these complications have been separated due to differences in their onset and behaviors.

Objectives: To investigate a potentially common etiology of DS and PBH using an analysis of a mixed meal test (MMT) study.

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Introduction: The one anastomosis gastric bypass (OAGB) is an effective treatment to induce sustained weight loss in morbidly obese patients. Concerns remain regarding the development of reflux. The aim of this study was to investigate the effect of an "anti-reflux suture" as anti-reflux modification to prevent reflux.

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Article Synopsis
  • Bile acids (BA) are important for fat absorption and may influence metabolic processes, particularly after Roux-en-Y gastric bypass (RYGB) surgery, but their role in postprandial hypoglycemia (low blood sugar after eating) post-surgery is unclear.
  • A study compared the levels of various metabolic markers, including BA and GLP-1, in patients who had undergone RYGB surgery with and without a gallbladder, against obese controls.
  • Results indicated that altered BA responses and increased GLP-1 and insulin levels after meals may lead to hypoglycemia, particularly in those without a gallbladder, suggesting that changes in BA kinetics play a role in this condition.
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Article Synopsis
  • Lower muscle mass in individuals with obesity is linked to serious health issues like hypertension and type 2 diabetes, necessitating better assessment methods for muscle mass during weight loss interventions.
  • Bariatric surgery is effective for achieving long-term weight loss, but it's important to minimize muscle loss during this process, highlighting the need for reliable measurement techniques.
  • Traditional methods like MRI and CT scans are costly and have limitations, while dual-energy X-ray absorptiometry is more commonly used; however, other affordable methods lack robust validation for those with severe obesity.
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Purpose: Post-bariatric hypoglycemia is a complication of bariatric surgery, especially Roux-en-Y gastric bypass (RYGB). The counterregulatory hormonal and sympathetic neural responses were measured during a previously reported meal test in which 48% had an almost asymptomatic hypoglycemic event.

Materials And Methods: Forty-four randomly selected patients 4 years after RYGB.

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Background: Dumping syndrome (DS) and postbariatric hypoglycemia (PBH) are frequent complications of bariatric surgery. Bile acids (BA) have been implicated in their pathogenesis because both bariatric surgery and cholecystectomy (CCx) are known to modulate human BA metabolism.

Objectives: Our investigation aimed to compare the prevalence of self-reported complaints of DS and PBH in postbariatric patients with and without CCx.

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Objective: Roux-en-Y gastric bypass (RYGB) is an effective way to induce sustainable weight loss and can be complicated by postprandial hyperinsulinaemic hypoglycaemia (PHH). To study the prevalence and the mechanisms behind the occurrence of hypoglycaemia after a mixed meal tolerance test (MMTT) in patients with primary RYGB.

Design: This is a cross-sectional study of patients 4 years after primary RYGB.

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Adequate glucocorticoid replacement in patients with primary or secondary adrenal insufficiency is essential to maintain general well-being. Little is known about the effects of bariatric surgery on glucocorticoid absorption. This study evaluates glucocorticoid absorption before and after bariatric surgery, with assessment of plasma cortisol profiles in five patients receiving glucocorticoid replacement therapy for primary (n = 1) or secondary (n = 4) adrenal insufficiency.

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Background: Circulating amino acids have been associated with both appetite and the secretion of anorexigenic hormones in healthy and obese populations. This effect has not been investigated in subjects having undergone Roux-en-Y gastric bypass surgery (RYGB).

Objective: To investigate the association between postprandial plasma concentrations of amino acids and the anorexigenic hormones glucagon-like peptide-1 (GLP-1) and peptide tyrosine tyrosine (PYY), the orexigenic hormone ghrelin, and satiety and hunger in post-RYGB subjects.

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Purpose: The use of Fluorine-labeled dihydroxy-phenyl-alanine (F-FDOPA) PET/CT in patients with hypoglycemia suspected to be caused by pancreatic disease can be helpful to localize the source of excess insulin production. In this setting, carbidopa pretreatment is not recommended. However, quantitative comparisons of pancreatic tracer uptake in patients with or without carbidopa pretreatment and in diffuse pancreatic disease are lacking.

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Context: Bariatric surgery is an effective method to reduce morbid obesity. Nutritional counseling is essential to achieve maximal treatment success and to avoid long-term complications. Increased dietary protein intake may improve various postoperative results.

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Importance: To our knowledge, an observational study on the remission of type 2 diabetes mellitus (T2DM) after different types of bariatric surgery based on data from general practice has not been carried out.

Objective: To assess the effect of different types of bariatric surgery in patients with T2DM on diabetes remission compared with matched control patients, and the effect of the type of bariatric surgery on improvement of glycemic control and related clinical parameters.

Design, Setting, And Participants: A retrospective cohort study conducted from May 2013 to May 2014 within the Clinical Practice Research Datalink involving 2978 patients with a record of bariatric surgery (2005-2012) and a body mass index (calculated as weight in kilograms divided by height in meters squared) of 35 or greater.

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Context: Hyperinsulinemic hypoglycemia after Roux-en-Y gastric bypass (RYGB) has been increasingly reported. It is induced by β-cell hyperplasia often referred to as nesidioblastosis. Positron emission tomography (PET) with [11C]-5-hydroxytryptophan ((11)C-HTP) and 6-[18F]fluoro-3,4-dihydroxy-l-phenylalanine ((18)F-DOPA) has been successfully applied to image neuroendocrine tumors.

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