Endoscopic stenting versus operative gastrojejunostomy for malignant gastric outlet obstruction.

BACKGROUND: Malignant gastric outlet obstruction represents a terminal stage in pancreatic cancer. Between 5% and 25% of patients with pancreatic cancer ultimately experience malignant gastric outlet obstruction. The aim in palliating patients with malignant gastric outlet obstruction is to reestablish an oral intake by restoring gastrointestinal continuity. This ultimately improves their quality of life in the advanced stages of cancer. The main drawback to operative bypass is the high incidence of delayed gastric emptying, particularly in this group of patients with symptomatic obstruction. This study aimed to compare surgical gastrojejunostomy and endoscopic stenting in palliation of malignant gastric outlet obstruction, acknowledging the diversity and heterogeneity of patients with this presentation. METHODS: This retrospective study investigated patients treated for malignant gastric outlet obstruction from December 1998 to November 2008 at Nepean Hospital, Sydney, Australia. Endoscopic duodenal stenting was performed under fluoroscopic guidance for placement of the stent. The operative patients underwent open surgical gastrojejunostomy. The outcomes assessed included time to diet, hospital length of stay (LOS), biliary drainage procedures, morbidity, and mortality. RESULTS: Of the 45 participants in this study, 26 underwent duodenal stenting and 19 had operative bypass. Comparing the stenting and operative patients, the median time to fluid intake was respectively 0 vs. 7 days (P < 0.001), and the time to intake of solids was 2 vs. 9 days (P = 0.004). The median total LOS was shorter in the stenting group (11 vs. 25 days; P < 0.001), as was the median postprocedure LOS (5 vs. 10 days; P = 0.07). CONCLUSIONS: Endoscopic stenting is preferable to operative gastrojejunostomy in terms of shorter LOS, faster return to fluids and solids, and reduced morbidity and in-hospital mortality for patients with a limited life span.

A Multidisciplinary Approach to Secondary Tracheoesophageal Puncture for Voice Prosthesis Insertion Using Flexible Esophagoscopy.

BACKGROUND: Tracheoesophageal puncture (TEP) with voice prosthesis (VP) insertion is the gold standard of surgical voice restoration in postlaryngectomy patients. The conventional technique involves rigid esophagoscopes and trocar performed by ENT surgeons alone, with technical limitations encountered in patients with cervical abnormalities - in particular those with free or rotational flap reconstructions and postradiotherapy strictures. We report our technique using flexible endoscopy which we show to be feasible and without major safety events, as a possible consideration in the anticipated difficult TEP. METHODS: Our study describes a multidisciplinary approach to secondary TEP involving a combined upper gastrointestinal (UGI) and (Ear, Nose, and Throat) ENT procedure, under the guidance of flexible esophagoscopy, with intraoperative involvement of the speech pathologist to guide VP insertion and placement. The procedure was performed with ease without major complications. RESULTS: We identified nine postlaryngectomy and laryngopharyngectomy patients in our institution who underwent secondary TEP with VP insertion using flexible esophagoscopy and multidisciplinary intra-operative involvement. All patients had pharyngeal reconstruction, including radial forearm free flap (n = 4), pectoralis major rotational flap (n = 3), and anterolateral thigh flap (n = 2). Eight out of nine patients underwent adjuvant radiotherapy. The technique was successfully performed in all patients. There were three cases of early TEP displacement in two patients, of which one patient had a successful repeat procedure. We found the technique advantageous in terms of feasibility and practicality compared to the conventional approach, and without intraoperative difficulties encountered in achieving the desired field of views or navigating the challenging anatomy in a free flap and post-radiotherapy patients. This includes distorted cervical anatomy, the presence of bulky and hair-bearing flap skin, and stricture formation. Minor complications in our cohort included pharyngo-esophageal spasm, TEP displacement, granulation tissue, and peri-prosthetic leaks. CONCLUSION: Our multidisciplinary approach to secondary TEP was performed with flexible esophagoscopy without major related complications. The technique is advantageous in the surgical approach to VP insertion in postlaryngectomy and laryngopharyngectomy patients who have had radiotherapy or pharyngeal reconstruction. It allows for safe anatomical insertion and thorough evaluation of the upper aerodigestive tract for comorbid benign or malignant esophageal pathology.

Distinct Microbiota Dysbiosis in Patients with Non-Erosive Reflux Disease and Esophageal Adenocarcinoma.

Non-erosive reflux disease (NERD) and esophageal adenocarcinoma (EAC) are often regarded as bookends in the gastroesophageal reflux disease spectrum. However, there is limited clinical evidence to support this disease paradigm while the underlying mechanisms of disease progression remain unclear. In this study, we used 16S rRNA sequencing and mass-spectrometer-based proteomics to characterize the esophageal microbiota and host mucosa proteome, respectively. A total of 70 participants from four patient groups (NERD, reflux esophagitis, Barrett's esophagus, and EAC) and a control group were analyzed. Our results showed a unique NERD microbiota composition, distinct to control and other groups. We speculate that an increase in sulfate-reducing Proteobacteria and Bacteroidetes along with hydrogen producer Dorea are associated with a mechanistic role in visceral hypersensitivity. We also observed a distinct EAC microbiota consisting of a high abundance of lactic acid-producing bacteria (Staphylococcus, Lactobacillus, Bifidobacterium, and Streptococcus), which may contribute towards carcinogenesis through dysregulated lactate metabolism. This study suggests the close relationship between esophageal mucosal microbiota and the appearance of pathologies of this organ.