Publications by authors named "Sylke Haal"

Background And Aims: Gallstone disease (GSD) associates with significant morbidity and mortality. Decreased secretion of bile acids has been suggested as a driving factor for GSD. Recently, we linked the protein phosphatase 1 regulatory subunit 3 beta ( rs4240624 genotype to decreased bile acid levels in bile.

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Background: In addition to the reduction of symptomatic gallstone disease, ursodeoxycholic acid (UDCA) might also have beneficial metabolic effects after bariatric surgery. We examined the impact of UDCA on liver enzymes, hemoglobin A1c (HbA1c), lipids, and inflammation markers.

Methods: Patients in the UPGRADE trial (placebo-controlled, double-blind) were randomized between UDCA 900 mg daily or placebo pills for 6 months after bariatric surgery.

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Background: The aim was to evaluate the cost-effectiveness and cost-utility of ursodeoxycholic acid (UDCA) prophylaxis for the prevention of symptomatic gallstone disease after Roux-en-Y gastric bypass (RYGB) in patients without gallstones before surgery.

Methods: Data from a multicentre, double-blind, randomized placebo-controlled superiority trial were used. Patients scheduled for laparoscopic RYGB or sleeve gastrectomy were randomized to receive 900 mg UDCA or placebo for 6 months.

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Background: Ursodeoxycholic acid (UDCA) reduces symptomatic gallstone disease after Roux-en-Y gastric bypass (RYGB). The beneficial effect of UDCA is reduced by poor adherence.

Objectives: We aimed to identify factors associated with poor adherence to UDCA or placebo after bariatric surgery.

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Purpose: Patients who undergo bariatric surgery are at risk for developing cholesterol gallstones. We aimed to identify risk factors that are associated with symptomatic gallstone disease and gallstone formation after bariatric surgery.

Materials And Methods: We included participants of the UPGRADE trial, a multicenter randomized placebo-controlled trial on the prevention of symptomatic gallstone disease with ursodeoxycholic acid (UDCA) after bariatric surgery.

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Background: Rapid weight loss is a major risk factor for the formation of cholesterol gallstones. Consequently, patients with morbid obesity undergoing bariatric surgery frequently develop symptomatic gallstone disease. This trial assessed the efficacy of ursodeoxycholic acid versus placebo for the prevention of symptomatic gallstone disease after bariatric surgery.

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Since obese patients form cholesterol gallstones very rapidly after bariatric surgery, in patients who did not form gallstones during preceding years, we hypothesized that gallstone formation follows a different trajectory in bariatric patients compared to nonbariatric patients. We therefore analyzed the lipid composition of gallbladder bile derived from 18 bariatric gallstone patients and 17 nonbariatric gallstone patients (median (IQR) age, 46.0 (28.

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Background: The optimal antibiotic therapy duration for cholangitis is unclear. Guideline recommendations vary between 4 and 14 days after biliary drainage. Clinical observations and some evidence however suggest that shorter antibiotic therapy may be sufficient.

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Background: Approximately 8-15% of patients undergoing bariatric surgery develop symptomatic gallstone disease within 24 months after surgery. Ursodeoxycholic acid (UDCA) seems to effectively prevent the formation of gallstones detectable by ultrasound after bariatric surgery. The aim of the UPGRADE trial is to provide evidence on the prophylactic use of UDCA in preventing symptomatic gallstone disease postoperatively.

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Background: Recommendations for the duration of antimicrobial therapy in cholangitis after successful endoscopic biliary drainage vary. The aim of this study was to compare the occurrence of local infectious complications in patients with acute cholangitis treated with antibiotics for 3 days or less compared with 4 days or more.

Methods: We performed a retrospective multicentre study in seven hospitals in the Netherlands.

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Background: Patients who have undergone bariatric surgery are at risk for subsequent cholecystectomy. We aimed to identify risk factors for cholecystectomy after laparoscopic Roux-en-Y gastric bypass (LRYGB).

Methods: We conducted a retrospective case-control study of patients who underwent LRYGB between 2013 and 2015.

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Background: The number of bariatric interventions for morbid obesity is increasing worldwide. Rapid weight loss is a major risk factor for gallstone development. Approximately 11 % of patients who underwent Roux-en-Y gastric bypass develop symptomatic gallstone disease.

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Background And Study Aims:  Recent literature suggests that chemo(radio)therapy might reduce the patency of plastic stents in patients with malignant biliary obstruction. Whether this might also be valid for other types of stents is unknown. The aim of this study was to determine the influence of chemo(radio)therapy on the patency of fully-covered self-expandable metal stents (FCSEMSs) and plastic stents.

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Purpose: This study aimed to identify possible socioeconomic differences in the use of anti-smoking parenting strategies.

Methods: In 2012, survey data of adolescents (N = 225) aged 13 to 17 years and their mothers (N = 122) and fathers (N = 105) were collected in Haarlem, the Netherlands. Questions on smoking behaviour and eleven anti-smoking parenting strategies were answered by adolescents, mothers and fathers.

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