Unexpected changes in the gastric remnant in asymptomatic patients after Roux-en-Y gastric bypass on vertical banded gastroplasty

Gastric cancer after gastric bypass with fundectomy: The possibility for early diagnosis

•

RYGB is the most important bariatric procedure worldwide.

•

The RYGB mayor limitation is the difficult exploration of the excluded stomach and duodenum.

•

The gastric bypass with fundectomy allowed for an easly endoscopic evaluation.

•

The possibility to easly perform OGD guaranteed the detection of gastric carcinoma at an early stage.

Introduction: Roux-an-Y gastric bypass (RYGP) is one of the most important bariatric procedures and its results are well known in terms of weight loss and comorbid improvement. The major limitation of this technique is the difficult exploration of the excluded stomach and duodenum. Some Authors are performing the gastric bypass with fundectomy and, according to Literature, it is feasible and effective, with major advantage of explorable gastric pouch.

Presentation of case: We report the case of a 54-year-old woman affected by obesity (BMI 49 kg/m²). After a pre-operative multidisciplinary evaluation and gastroscopy, she underwent a laparoscopic RYGB with fundectomy in October 2016.

One year after surgery she contacted the department for vomiting, pyrosis and weakness.

Thanks to the characteristics of the surgical technique it was possible to easily perform an OGD that detected an antral ulcer. The byopsy revealed a gastric adenocarcinoma.

A degastroresection was performed and the istological finding was a gastric adenocarcinoma pT1b N0 G3.

Discussion: Early diagnosis is essential in gastric tumors to ensure a good prognosis and the gold standard is performing gastroscopy with biopsies.

With the standard technique is very challenging to perform an OGD and the cancer stage is likely to be advanced at diagnosis, with a bad prognosis for the patient.

Conclusion: From the clinical case described and the analysis of the Literature, the advantages of this technique are clear, allowing for an easy endoscopic evaluation of gastric walls with the possibility of diagnosing early stage tumors with a better outcome for patients.

Remnant gastropathy due to bile reflux after Roux-en-Y gastric bypass: a unique cause of abdominal pain and successful treatment with ursodiol

BACKGROUND

Chronic abdominal pain can occur after Roux-en-Y gastric bypass (RYGB), and can remain unexplained despite extensive investigation. Bile can pool in the gastric remnant and create a bile reflux gastropathy. The aim of this study was to assess gastric remnant findings in patients with RYGB and chronic abdominal pain of unclear etiology, and to determine the effectiveness of ursodiol therapy for patients with confirmed remnant gastropathy.

METHODS

All consecutive patients with RYGB and a diagnosis of chronic abdominal pain, and a negative diagnostic workup (including physical examination, routine laboratory work, cross-sectional imaging, and standard upper endoscopy), who underwent device-assisted enteroscopy for evaluation of the gastric remnant, were included. Pathology reports, treatments, and clinical follow-up were recorded.

RESULTS

28 post-RYGB patients (all female) with chronic abdominal pain and negative evaluation were included. Pooling of bile with gastric erythema was noted in 22/28 patients. All 22 patients with endoscopic erythema had pathology consistent with bile reflux chemical gastropathy. Of these patients, 12 were started on a proton pump inhibitor (PPI) alone, and 10 were started on ursodiol. Of the ursodiol group, 8/10 (80%) patients reported substantial improvement or resolution of abdominal pain at clinical follow-up. All three ursodiol patients with repeat endoscopic examination of the gastric remnant had endoscopic and histologic resolution of gastropathy. Of the PPI patients, 1/12 reported improvement in abdominal pain at clinical follow-up (p = 0.002), and both patients with repeat endoscopic examination of the gastric remnant had persistent remnant gastropathy.

CONCLUSIONS

Roux-en-Y gastric bypass patients with unexplained chronic pain, and biopsy-confirmed chemical gastropathy, had a significantly higher rate of abdominal pain resolution with ursodiol treatment compared to PPI. Remnant gastropathy due to bile reflux is a treatable cause of chronic abdominal pain in RYGB patients, and ursodiol should be considered for empiric treatment in RYGB patients with unexplained chronic abdominal pain.

Vertical Gastric Bypass with Fundectomy: Feasibility and 2-Year Follow-Up in a Series of Morbidly Obese Patients

BACKGROUND

Roux-en-Y gastric bypass (RYGB) is the gold standard procedure for morbid obesity and its results are well known and largely discussed. The major limitation of the procedure is the difficult exploration of the excluded gastric pouch and duodenum. The vertical gastric bypass with fundectomy was recently introduced in attempt to overcome these limitations. To date, its effectiveness is debated and outcomes still unclear. The purposes of this study were to describe the vertical gastric bypass with fundectomy and to analyse its outcomes in term of weight loss, complications, and comorbid resolutions.

MATERIAL AND METHODS

Since January 2012 to July 2014, 30 consecutive patients were enrolled and prospectively followed for a 24-month period. All patients underwent the vertical gastric bypass with fundectomy. Follow-up visits were scheduled at 7 days, 1, 6, 12, and 24 months, or whenever necessary.

RESULTS

Overall, 24 women and six men were enrolled in the study. Mean preoperative BMI was 38.2 ± 8.5 kg/m². No intraoperative complications were reported. Postoperative overall complication rate was 10%. Compliance to the 24-month follow-up was 100%. Mean BMI and excess weight loss (EWL%) were significantly lower compared to baseline (p < 0.05). Comorbid improvement or resolution was recorded in the 80% of the patients.

CONCLUSIONS

Vertical gastric bypass with fundectomy is feasible and effective with similar results in terms of weight loss, complications, and comorbid improving compared to the classic RYGB. Complete evaluation of the gastric anatomy and easy access to the main duodenal papilla are unquestionable advantages.

Bile reflux of the remnant stomach following Roux-en-Y gastric bypass: an etiology of chronic abdominal pain treated with remnant gastrectomy

BACKGROUND

Bile reflux gastritis of the remnant stomach following Roux-en-Y gastric bypass (RYGB) causing chronic abdominal pain has not been reported. We report a series of symptomatic patients with remnant gastritis treated effectively with remnant gastrectomy (RG).

OBJECTIVE

The objective was to report our experience with bile reflux remnant gastritis after RYGB and our outcomes following RG.

SETTING

Community teaching hospital.

METHODS

All patients undergoing RG were retrospectively reviewed for presenting symptoms, diagnostic workup, pathology, complications, and symptom resolution.

RESULTS

Nineteen patients underwent RG for bile reflux gastritis at a mean of 4.4 years (52.3 mo, range 8.5-124 mo) after RYGB. All patients were female and presented with pain, primarily epigastric (18/19; 95%), and described as burning (11/19; 58%), with 10 (53%) reporting nausea. Endoscopy was performed preoperatively on all patients with successful remnant inspection in 13 (68%), using push endoscopy (n = 10) or operative assist (n = 3), with 12 (of 13; 92%) biopsy-positive for reactive gastropathy. Seventeen (90%) completed a hepatobiliary scintigraphy scan with 100% positivity demonstrating bile reflux across the pylorus. Surgical approach was laparoscopic or robotic in 18 (95%) with a hospital length of stay of 2.7 days (range 0-12 d), with no major complications or readmissions. Pathology of the remnant confirmed reactive gastropathy in 90% (n = 17). Ninety percent of patients (n = 17) reported sustained symptom resolution, and 11% of patients (n = 2) remained symptomatic at last follow-up. We followed all patients for a mean of 6.6 years (1-194 mo).

CONCLUSION

Bile reflux gastritis of the remnant stomach is a new consideration for chronic abdominal pain months to years following RYGB. Hepatobiliary scintigraphy imaging and endoscopic biopsy are highly suggestive. RG is safe and effective treatment.

Visceral fat and body composition changes in a female population after RYGBP: a two-year follow-up by DXA

BACKGROUND

Our aim was to monitor the impact of Roux-en-Y gastric bypass (RYGBP) on body composition over a 24-month period by dual-energy X-ray absorptiometry (DXA).

METHODS

Forty-one women (40.6 ± 10.0 years old; 42.6 ± 6.6 kg/m(2)) entering a bariatric surgery programme were submitted to whole-body DXA (Lunar iDXA) before treatment and after 3, 6, 12 and 24 months. Fat mass (FM), non-bone lean mass (LM), bone mineral content (BMC) and density (BMD) were measured at whole body and regionally. Android visceral adipose tissue (VAT) was estimated by a recently validated software.

RESULTS

Twenty-nine patients (44.3 ± 11.8 years old; BMI, 45.4 ± 8.9 kg/m(2)) concluded the study. Following surgery, the progressive decrease of BMI was associated with reduced whole-body and regional FM. LM showed a moderate decrease at 3 months and stabilized thereafter. A progressive decrease of total FM/LM and android FM/LM ratios were observed in the 3- to 6-month (-19.1 ± 8.4 % and -26.5 ± 10.9 %, respectively; p < 0.0001) and 6- to 12-month periods (-23.5 ± 16.8 % and -29.4 ± 23.9 %, respectively; p < 0.0001). VAT was the parameter showing the largest decrease (-65.6 ± 17.5 % at 12 months; p < 0.0001). Two years after the surgery, a slight but significant decrease of total and regional LM was observed, without any significant change in BMI.

CONCLUSIONS

Body composition significantly changes after RYGBP with a metabolically healthier redistribution of total and regional FM and a positive balance of FM/LM variation. DXA should be considered as a valid supplementary tool for the clinical assessment and follow-up in patients undergoing bariatric surgery.

Diffuse large B-cell lymphoma (DLBCL) in the bypassed stomach after obesity surgery

Laparoscopic Roux-en-Y gastric bypass is the most commonly performed surgical procedure for obesity and, consequently, post-operative patients are increasingly encountered by all specialties. This is a case of a patient presenting with abdominal pain, nausea and fever 9 months following gastric bypass surgery caused by diffuse large B-cell lymphoma (DLBCL) in the bypassed stomach. It demonstrates well that symptoms that may normally be considered 'red-flags' may not be as obvious or specific following an operation. The case also indicates the importance of considering diagnoses unrelated to surgery presenting in the post-operative period (especially when conventional investigation methods are not feasible), and the potential danger of assuming they are due to the operation alone; had this occurred in this patient then a malignancy may have been missed. This is only the second reported case of DLBCL in the bypassed stomach, and the third for lymphoma of any type.