Publications by authors named "Theo J Aufenacker"

Importance: Weight loss induced by bariatric surgery (BS) is associated with improved cognition and changed brain structure; however, previous studies on the association have used small cohorts and short follow-up periods, making it difficult to determine long-term neurological outcomes associated with BS.

Objective: To investigate long-term associations of weight loss after BS with cognition and brain structure and perfusion.

Design, Setting, And Participants: This cohort study included participants from the Bariatric Surgery Rijnstate and Radboudumc Neuroimaging and Cognition in Obesity study.

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Objective: The aim of this study was to determine if prophylactic mesh placement is an effective, safe, and cost-effective procedure to prevent parastomal hernia (PSH) formation in the long term.

Background: A PSH is the most frequent complication after stoma formation. Prophylactic placement of a mesh has been suggested to prevent PSH, but long-term evidence to support this approach is scarce.

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Purpose: Laparoscopy-assisted transgastric endoscopic retrograde cholangiopancreatography (LAERCP) is an alternative for the anatomically challenging conventional ERCP in patients with a Roux-en-Y gastric bypass (RYGB) as it allows access to the biliary tree via the gastric remnant. We investigated the efficacy and safety of LAERCP.

Material And Methods: We retrospectively reviewed all charts from RYGB patients who underwent a LAERCP between January 2009 and August 2019 in a non-academic referral center for bariatric surgery.

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Objective: This meta-analysis and trial sequential analysis aims to provide an update on the available randomized controlled trials (RCTs) and recommendations on using lightweight mesh (LWM) or heavyweight mesh (HWM) in laparo-endoscopic inguinal hernia repair.

Background: LWM might reduce chronic pain through improved mesh flexibility and less fibrosis formation. However, in laparo-endoscopic repair chronic pain is already rare and LWM raise concerns of higher recurrence rates.

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Background: The use of lightweight mesh for inguinal hernia repair has been suggested to be preferable compared with heavyweight mesh. Nevertheless, surgeons do not use lightweight mesh routinely, possibly owing to the higher price and lack of confidence in evaluation of previous evidence. The aim of this systematic review and meta-analysis is to update the available randomized controlled trials and provide a recommendation on the use of lightweight mesh or heavyweight mesh in open inguinal hernia repair.

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Purpose: The purposes of the study are to outline the complexity of diagnosing internal herniation after Roux-en-Y gastric bypass (RYGB) surgery and to investigate the added value of computed tomography angiography (CTA) for diagnosing internal herniation.

Materials And Methods: A cadaver study was performed to investigate the manifestations of internal hernias and mesenteric vascularization. Furthermore, a prospective, ethics approved study with retrospective interpretation was conducted.

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Objective: The aim of this study was to investigate the incidence of parastomal hernias (PSHs) after end-colostomy formation using a polypropylene mesh in a randomized controlled trial versus conventional colostomy formation.

Background: A PSH is the most frequent complication after stoma formation. Symptoms may range from mild abdominal pain to life-threatening obstruction and strangulation.

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Iron, vitamin B12, and folic acid deficiencies are among the most common deficiencies occurring after laparoscopic Roux-en-Y gastric bypass (LRYGB). The present study evaluates the effectiveness of a specially designed multivitamin supplement (WLS Forte, FitForMe, Rotterdam, the Netherlands) specifically developed for LRYGB patients.A triple-blind, randomized, 12-month study was conducted comparing WLS forte with a standard multivitamin supplement (sMVS) containing approximately 100% of the recommended daily allowance (RDA) for iron, vitamin B12, and folic acid.

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Background: Laparoscopic adjustable gastric band (LAGB), laparoscopic sleeve gastrectomy (LSG), and laparoscopic Roux-en-Y gastric bypass (LRYGB) are the most performed procedures worldwide (92 %) nowadays. However, comparative clinical trials are scarce in literature. The objective of this study was to compare the effectiveness and safety of the three most performed bariatric procedures.

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Background: Due to the increased incidence of morbid obesity, the demand for bariatric surgery is increasing. Therefore, the methods for optimising perioperative care for the improvement of surgical outcome and to increase efficacy are necessary. The aim of this prospective matched cohort study is to objectify the effect of the fast-track surgery (FTS) programme in patients undergoing primary Laparoscopic Roux-en-Y Gastric Bypass (LRYGB) surgery compared to conventional perioperative care (CPC).

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The European best practice guidelines on the treatment of inguinal hernia were published in 2009. Publications on this subject in international journals were updated in 2012. In patients with asymptomatic inguinal hernia or with minimal symptoms, conservative treatment is safe, but they do need to be informed that the risk for undergoing surgery increases by nearly 10% a year.

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Background: Parastomal hernia is a common complication of a colostomy. Ultimately, one-third of patients with a parastomal hernia will need surgical correction due to frequent leakage or life-threatening bowel obstruction or strangulation. However, treatment remains a challenge resulting in high recurrence rates.

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Background: The CARTS study is a multicenter feasibility study, investigating the role of rectum saving surgery for distal rectal cancer.

Methods/design: Patients with a clinical T1-3 N0 M0 rectal adenocarcinoma below 10 cm from the anal verge will receive neoadjuvant chemoradiation therapy (25 fractions of 2 Gy with concurrent capecitabine). Transanal Endoscopic Microsurgery (TEM) will be performed 8 - 10 weeks after the end of the preoperative treatment depending on the clinical response.

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Objective: To determine whether the use of prophylactic antibiotics is effective in the prevention of postoperative wound infection after Lichtenstein open mesh inguinal hernia repair.

Summary Background Data: A recent Cochrane meta-analysis (2003) concluded that "antibiotic prophylaxis for elective inguinal hernia repair cannot be firmly recommended or discarded."

Methods: Patients with a primary inguinal hernia scheduled for Lichtenstein repair were randomized to a preoperative single dose of 1.

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