Objectives Some patients with gastroesophageal reflux disease (GERD) are refractory to proton pump inhibitor (PPI) therapy. Anti‐reflux mucosectomy (ARMS) is a minimally invasive endoscopic procedure for treatment of GERD. In this study, we retrospectively evaluated the outcomes of ARMS performed in patients with PPI‐refractory GERD at our institution. Methods A total of 109 patients with PPI‐refractory GERD who underwent ARMS were retrospectively reviewed. Pre‐ and post‐ARMS questionnaire scores, acid exposure time (AET), DeMeester score, proximal extent, and PPI discontinuation rate were compared. Results There was a significant improvement in the symptom score (P < 0.01) and 40–50% of patients were able to discontinue PPI after ARMS. In patients who were followed up for 3 years, sustained improvement in subjective symptoms was observed. AET and DeMeester score significantly improved after ARMS (P < 0.01); however, there was no significant improvement in proximal extent (P = 0.0846). Conclusions Anti‐reflux mucosectomy is an effective minimally invasive therapy for patients with PPI‐refractory GERD. The therapeutic efficacy is attributable to suppression of acid backflow due to contraction of the scar tissue in cardia.
Background The endoscopic pressure study integrated system (EPSIS) is a prototypic system for monitoring intragastric pressure (IGP) fluctuations that result from opening of the cardia during gastric distension. The performance of EPSIS for the diagnosis of gastroesophageal reflux disease (GERD) was evaluated. Methods A retrospective analysis was conducted of data prospectively collected over a 2-year period from 59 patients who underwent gastroscopy, EPSIS, and 24-hour pH monitoring. Using a dedicated electronic device and a through-the-scope catheter, maximum IGP (IGPmax) and IGP waveform pattern (uphill/flat) were recorded. Results The optimal IGPmax cutoff was 18.7 mmHg. IGPmax < 18.7 mmHg (sensitivity 74.2 %, 95 % confidence interval [CI] 56.8 – 86.3; specificity 57.1 %, 95 %CI 39.1 – 73.5) and flat pattern (sensitivity 71.0 %, 95 %CI 53.4 – 83.9; specificity 82.1 %, 95 %CI 64.4 – 92.1) were associated with GERD. “Double” EPSIS positivity (IGPmax < 18.7 mmHg and flat pattern) provided maximum specificity (85.7 %, 95 %CI 68.5 – 94.3), whereas “any” EPSIS positivity (IGPmax < 18.7 mmHg or flat pattern) provided maximum sensitivity (80.6 %, 95 %CI 63.7 – 90.8). Maximum specificity and sensitivity for nonerosive reflux disease (NERD) was > 70 %. In multivariate analysis, “double” EPSIS positivity was the strongest predictor of GERD (odds ratio [OR] 16.05, 95 %CI 3.23 – 79.7) and NERD (OR 14.7, 95 %CI 2.37 – 90.8). Conclusion EPSIS emerges as a reliable adjunct to routine gastroscopy for GERD diagnosis, and might prove helpful for the stratification and management of patients with reflux disorders.
Objectives Per‐oral endoscopic myotomy (POEM) is a safe and effective treatment for achalasia and esophageal motility disorders. The role of second‐look endoscopy (SE) on postoperative day 1 has not been examined. This study aimed to evaluate the findings and need of SE after POEM. Methods This is a single‐center, retrospective study. All consecutive patients who underwent POEM and SE on postoperative day 1 between December 2017 and September 2019 were included. The primary endpoint was the rate of newly‐detected adverse events (nAE) during SE that required endoscopic intervention or deviation from the normal postoperative course. Multivariate logistic regression was used to identify predictors of nAE. Results Four‐hundred‐ninety‐seven patients (mean age, 50.3 years; female, 49.9%) were included. SE identified abnormal findings in a total of 71 patients (14.3%). nAE which required endoscopic intervention or deviation from the normal postoperative course were identified in 12 patients (2.4%): eight (1.6%) entry site dehiscence; two (0.4%) submucosal hemorrhage or hematoma; and two (0.4%) dehiscence of an intraoperative perforation site after endoclip closure. Other findings such as mucosal thermal damage without perforation and small submucosal hematoma were found in 54 patients (10.9%) and five patients (1.0%), respectively. Multivariate analysis showed that longer operation time and intraoperative adverse events (AE) were associated with clinically significant nAE during SE. Conclusions Second‐look endoscopy can detect and treat nAE that may lead to severe AE. Thus, SE should be highly considered before starting oral ingestion in all cases, and especially in those who present an intraoperative AE and longer operation time.
Aim To elucidate the impact of the coronavirus disease 2019 (COVID‐19) on the practice of high‐resolution manometry (HRM) and peroral endoscopic myotomy (POEM) in Japan. Methods We utilized a large‐scale database involving 14 high‐volume centers in Japan to investigate changes in the numbers of HRM and POEM procedures performed and outcomes of POEM between 2019 and 2020. A questionnaire survey was also conducted to analyze pandemic‐associated changes in the HRM and POEM protocols. Results Compared to that in 2019, the number of HRM and POEM procedures decreased by 17.2% (1587–1314) and 20.9% (630–498), respectively. These declines were prominent during the state of emergency from April to May 2020, particularly in pandemic areas. HRM and POEM in nonpandemic areas were relatively unaffected. From 2019 to 2020, there was a 0.4% (254–248) decrease in POEM cases within the prefecture, but the number outside the prefecture decreased by 33.6% (372–247). During the pandemic, the safety and efficacy of POEM were maintained. The implementation of personal protective equipment (PPE) measures varied among facilities, and PPE for POEM was relatively insufficient compared to that for HRM. Conclusion The COVID‐19 pandemic influenced HRM and POEM practices in Japan. It is necessary to establish a sufficient system for HRM and POEM in each hospital as well as countrywide to overcome the effects of the pandemic.
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