A case report and review of the literature of Bouveret syndrome

A rarer cause of Bouveret syndrome - A case report

INTRODUCTION AND IMPORTANCE

Bouveret syndrome is a rare type of gallstone ileus causing gastric outlet obstruction with high morbidity and mortality risk, and hence important to have a high degree of clinical suspicion on presentation for prompt diagnosis and management.

CASE PRESENTATION

We present a case of an elderly woman with abdominal pain, haematemesis, and an unremarkable radiograph whose initial emergent endoscopy showed a gastric obstruction and a duodenal diverticulum with a non-bleeding broad based duodenal ulcer. Subsequent computerised tomographic (CT) scan revealed a cholecystoduodenal fistula and gastric outlet obstruction secondary to a 5 cm stone in the duodenojejunal (DJ) flexure. A repeat endoscopy was attempted for endoscopic removal prior to proceeding to open enterolithotomy.

CLINICAL DISCUSSION

This case highlights the challenges in diagnosis and discusses the latest literature on multimodal management consisting of endoscopy and surgery.

CONCLUSION

The location of the obstructing stone at the duodenojejunal flexure is extremely rare and therefore will add to world literature on Bouveret syndrome.

Percutaneous Cholecystostomy: A Bridge to Less Morbidity

Percutaneous cholecystostomy (PC) is a minimally invasive procedure for decompressing gall bladder (GB) or biliary system in emergency settings, performed in patients with GB or biliary diseases who are at high risk for surgical exploration. Indications range from acute cholecystitis in seriously ill patients to overdistended GB with impending perforation to overt GB perforation. This procedure, by allowing biliary drainage, helps in controlling the infection and optimizing the patient's condition for definitive treatment in the form of elective surgery if possible, thus acting as a bridge to a definitive treatment option. In some cases, such as acute acalculous cholecystitis, it may obviate the need for surgery, and in malignant biliary obstruction, it may be used as a palliative measure to keep GB decompressed. This review article focuses on and revisits many aspects of PC including technical aspects, clinical indications, outcomes, and safety of the procedure, in addition to its role as bridge therapy versus definitive therapy versus palliative option. It includes observations based on the author's own work experience and review of the literature.

Mirizzi Syndrome With Bouveret Syndrome: A Rare Amalgam

Mirizzi and Bouveret syndromes are uncommon but important complications of calculous cholecystitis. Mirizzi syndrome commonly presents with jaundice due to extrinsic compression on the common bile duct by an impacted stone at the gall bladder infundibulum, whereas Bouveret syndrome presents with gastric outlet obstruction due to a large stone in the duodenum. Our case is a 65-year-old lady who presented with pain in the right upper abdomen associated with nausea and vomiting. Contrast-enhanced computed tomography and MRI of the abdomen were suggestive of calculus in the infundibulum of the gall bladder with compression over the common bile duct and a large stone in the first part of the duodenum. Upper gastrointestinal endoscopy confirmed the findings but could not retrieve the stone. Cholecystectomy with the retrieval of calculus from the infundibulum and duodenum was performed with the closure of the fistulous opening. The patient did well in the post-operative period and is doing well after nine months of follow-up. Chronic calculus cholecystitis can present in varied forms, and one should be aware of such rare complications and their management.

Post hoc validation of a tool that accurately predicts the outcome of endoscopic therapy in Bouveret syndrome

Background

Bouveret syndrome is characterized by gallstone impaction in the upper gastrointestinal tract causing gastric outlet obstruction. In Bouveret syndrome, endoscopic gallstone removal can avert the need for surgery. However, in cases in which endoscopic therapy is unlikely to succeed, endoscopic attempts delay definitive treatment and compound patient risks. We previously developed a model that predicts endoscopic outcomes from data derived through a systematic review. This tool uses gallstone length, site of impaction, and the number of planned methods of lithotripsy to predict the likelihood of endoscopic success with an accuracy of 81.0%. This study aimed to evaluate our tool performance in an independent, non-training data set and assess endoscopic and surgical outcomes.

Methods

Systematic searches of the PubMed, Scopus, and Cochrane databases were performed for articles published between 16 April 2018 and 1 June 2021. The data reported after our previous study were harvested and inputted into the tool to evaluate their ability to accurately predict outcomes when compared with actual outcomes.

Results

Newly collated data in fields of interest showed no significant statistical differences compared with previous training data sets. Endoscopic therapy was successful in 41.9% of cases. Gallstones of ≤4 cm had a higher chance of successful endoscopic intervention (odds ratio 6.7, 95% confidence interval 1.7–25.8, P < 0.01). Complications of surgery were reported in 29.5%; there was one fatality reported. Post hoc evaluation of our predictive tool demonstrated an AUROC score of 0.80.

Conclusions

We have demonstrated in an independent data set that the tool can be used to accurately predict outcomes of endoscopic therapy. Patients in whom endoscopic therapy is most likely to fail should be offered an early surgical opinion.

Gallstone ileus associated with cholecystogastric fistula: Case report, diagnosis and surgical treatment

Introduction

Gallstone Ileus is a rare complication of cholelithiasis, associated with multiple episodes of cholecystitis, with the formation of adhesions and fistulas between the gallbladder and adjacent organs. Its diagnosis is difficult, requiring complementary imaging tests such as computed tomography or radiography.

Presentation of case

Female patient, with intestinal obstruction for 7 days, associated with abdominal pain and previous episodes of pain in the right hypochondrium for 3 months. Abdominal CT scan identified aerobilia, gallstone impacted in the ileocecal valve and small loop dilatation, in addition to a probable cholecystogastric fistula. Opted for exploratory laparotomy, enterolithotomy and fistula correction in one surgical time.

Discussion

Gallstone ileus is rare among the complications of cholelithiasis, in addition to the fact that cholecystogastric fistula is associated with gastric pylorus obstruction and not impaction on the ileocecal valve. Imaging tests are useful to complement the diagnosis, and if Rigler's triad is present, the suspicion of gallstone ileus is increased. The presence of fistula between the gallbladder and stomach presents a frequency between 0 and 13.3%. There is no gold standard treatment for gallstone ileus, but surgery options for each type of patient and severity level.

Conclusion

There is no definitive protocol for optimal surgical treatment for biliary ileus, but the possibility of enterolithotomy associated with cholecystectomy and fistula correction can be evaluated in selected patients.

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Gallstone ileus is a rare cause of intestinal obstruction.

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Cholecystogastric fistula may be associated with ileum obstruction.

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One-step surgical treatment can be used in specific patients

Imaging Spectrum of Duodenal Emergencies

The duodenum, the first portion of the small bowel, is divided into four segments and extends to both retro- and intraperitoneal spaces. Some conditions arise primarily from the duodenum, but it can be secondarily affected by processes that involve neighboring structures. When duodenal emergencies are not identified and treated promptly, they may result in high morbidity and mortality. Imaging plays an important role in the diagnosis of duodenal conditions in the acute setting. However, the radiologic findings can be subtle, and awareness of relevant patient history and clinical presentation is important as it may increase the index of suspicion and one's ability to diagnose these conditions. Duodenal peptic disease is common and can be complicated by bleeding and perforation. The duodenum can be secondarily involved by pancreatitis and gallbladder pathologic conditions and may be affected by iatrogenic complications following endoscopic procedures. Traumatic injuries to the duodenum are generally uncommon, with penetrating traumatic injury being the most frequent mechanism of injury. Duodenal vascular pathologic conditions such as aortoduodenal fistula are uncommon but can be life threatening. The knowledge of which pathologic condition can involve which duodenal segment can help the radiologist establish a differential diagnosis and achieve a more targeted imaging approach. The online slide presentation from the RSNA Annual Meeting is available for this article. ^©RSNA, 2020.

Focus on management of gallstone ileus

Gallstone ileus is a rare form of intestinal obstruction and an uncommon complication of gallstone disease resulting from the impaction of one or more gallstones in the bowel owing to biliary intestinal fistula. The increasing incidence of gallstone ileus is related to the high prevalence of cholelithiasis, the aging of the population, and the more sensitive diagnostic tools. The diagnosis is often delayed due to the lack of typical clinical manifestations. In this paper, we discuss the pathogenesis of gallstone ileus, factors that result in its diagnosis, and therapeutic strategies by performing a systematic review of the literature. We also emphasize the specificity and complexity of gallstone ileus. We suggest that on the basis of observing the basic principles, the management should be rationalized and individualized in clinical practice so as to improve the prognosis of gallstone ileus.