Management of the Zenker diverticulum: multicenter retrospective comparative study of open surgery and rigid endoscopy versus flexible endoscopy.

BACKGROUND AND STUDY AIM: Zenker's diverticulum is a rare disease that affects quality of life due to dysphagia and regurgitation. This condition can be treated by various surgical or endoscopic methods. PATIENTS AND METHOD: Patients treated for Zenker's diverticulum in three centers in the south of France between 2014 and 2019 were included. The primary objective was clinical efficacy. Secondary objectives were technical success, morbidities, recurrences, and need for a new procedure. RESULTS: One hundred forty-four patients with a total of one hundred sixty-five procedures performed were included. A significant difference was found between the different groups in terms of clinical success (97% for open surgery versus 79% for rigid endoscopy versus 90% for flexible endoscopy, p = 0.009). Technical failure occurred more frequently in the rigid endoscopy group than in the flexible endoscopy and surgical groups (p = 0.014). Median procedure duration, median time to resumption of feeding, and hospital discharge were statistically shorter for endoscopies than for open surgery. On the other hand, more recurrences occurred in patients treated by endoscopy than those treated by surgery, and more reinterventions were required. CONCLUSION: Flexible endoscopy appears to be as effective and safe as open surgery in the treatment of Zenker's diverticulum. Endoscopy allows a shorter hospital stay at the expense of a higher risk of recurrence of symptoms. It could be used as an alternative to open surgery for the treatment of Zenker's diverticulum, especially in frail patients.

Impact of Gastric Electrical Stimulation on Economic Burden of Refractory Vomiting: A French Nationwide Multicentre Study.

BACKGROUND & AIMS: Medico-economic data of patients suffering from chronic nausea and vomiting are lacking. In these patients, gastric electrical stimulation (GES) is an effective, but costly treatment. The aim of this study was to assess the efficacy, safety and medico-economic impact of Enterra therapy in patients with chronic medically refractory nausea and vomiting. METHODS: Data were collected prospectively from patients with medically refractory nausea and/or vomiting, implanted with an Enterra device and followed for two years. Gastrointestinal quality of life index (GIQLI) score, vomiting frequency, nutritional status and safety were evaluated. Direct and indirect expenditure data were prospectively collected in diaries. RESULTS: Complete clinical data were available for142 patients (60 diabetic, 82 non-diabetic) and medico-economic data were available for 96 patients (36 diabetic, 60 non-diabetic), 24 months after implantation. GIQLI score increased by 12.1 ± 25.0 points (p < .001), with a more significant improvement in non-diabetic than in diabetic patients (+15.8 ± 25.0 points, p < .001 versus 7.3 ± 24.5 points, p = .027, respectively). The proportion of patients vomiting less than once per month increased by 25.5% (p < .001). Hospitalisations, time off work and transport were the main sources of costs. Enterra therapy decreased mean overall healthcare costs from 8873 US$ to 5525 US$ /patient/year (p = .001), representing a saving of 3348 US$ per patient and per year. Savings were greater for diabetic patients (4096 US$ /patient/year) than for non-diabetic patients (2900 US$ /patient/year). CONCLUSIONS: Enterra therapy is an effective, safe and cost-effective option for patients with refractory nausea and vomiting. CLINICALTRIALS: gov Identifier: NCT00903799.

Gastric Electrical Stimulation Reduces Refractory Vomiting in a Randomized Crossover Trial.

BACKGROUND & AIMS: There have been conflicting results from trials of gastric electrical stimulation (GES) for treatment of refractory vomiting, associated or not with gastroparesis. We performed a large, multicenter, randomized, double-blind trial with crossover to study the efficacy of GES in patients with refractory vomiting, with or without gastroparesis. METHODS: For 4 months, we assessed symptoms in 172 patients (66% women; mean age ± standard deviation, 45 ± 12 years; 133 with gastroparesis) with chronic (>12 months) of refractory vomiting (idiopathic, associated with a type 1 or 2 diabetes, or postsurgical). A GES device was implanted and left unactivated until patients were randomly assigned, in a double-blind manner, to groups that received 4 months of stimulation parameters (14 Hz, 5 mA, pulses of 330 µs) or no stimulation (control); 149 patients then crossed over to the other group for 4 months. Patients were examined at the end of each 4-month period (at 5 and 9 months after implantation). Primary endpoints were vomiting score, ranging from 0 (daily vomiting) to 4 (no vomiting), and the quality of life, assessed by the Gastrointestinal Quality of Life Index scoring system. Secondary endpoints were changes in other digestive symptoms, nutritional status, gastric emptying, and control of diabetes. RESULTS: During both phases of the crossover study, vomiting scores were higher in the group with the device on (median score, 2) than the control group (median score, 1; P < .001), in diabetic and nondiabetic patients. Vomiting scores increased significantly when the device was ON in patients with delayed (P < .01) or normal gastric emptying (P = .05). Gastric emptying was not accelerated during the ON period compared with the OFF period. Having the GES turned on was not associated with increased quality of life. CONCLUSIONS: In a randomized crossover study, we found that GES reduced the frequency of refractory vomiting in patients with and without diabetes, although it did not accelerate gastric emptying or increase of quality of life. Clinicaltrials.gov, Number: NCT00903799.