Variability in endoscopic assessment of Nissen fundoplication wrap integrity and hiatus herniation

Summary Background Upper endoscopy (EGD) is frequently performed in patients with esophageal complaints following anti-reflux surgery such as fundoplication. Endoscopic evaluation of fundoplication wrap integrity can be challenging. Our primary aim in this pilot study was to evaluate the accuracy and confidence of assessing Nissen fundoplication integrity and hiatus herniation among gastroenterology (GI) fellows, subspecialists, and foregut surgeons. Methods Five variations of post-Nissen fundoplication anatomy were included in a survey of 20 sets of EGD images that was completed by GI fellows, general GI attendings, esophagologists, and foregut surgeons. Accuracy, diagnostic confidence, and inter-rater agreement across providers were evaluated. Results There were 31 respondents in the final cohort. Confidence in pre-survey diagnostics significantly differed by provider type (mean confidence out of 5 was 1.8 for GI fellows, 2.7 for general GI attendings, 3.6 for esophagologists, and 3.6 for foregut surgeons, P = 0.01). The mean overall accuracy was 45.9%, which significantly differed by provider type with the lowest rate among GI fellows (37%) and highest among esophagologists (53%; P = 0.01). The accuracy was highest among esophagologists across all wrap integrity variations. Inter-rater agreement was low across wrap integrity variations (Krippendorf’s alpha <0.30), indicating low to no agreement between providers. Conclusion In this multi-center survey study, GI fellows had the lowest accuracy and confidence in assessing EGD images after Nissen fundoplication, whereas esophagologists had the highest. Diagnostic confidence varied considerably and inter-rater agreement was poor. These findings suggest experience may improve confidence, but highlight the need to improve the evaluation of fundoplication wraps.

Patient Satisfaction after Laparoscopic Nissen Fundoplication—Long-Term Outcomes of Single-Center Study

Up to 33% of the population suffers from gastroesophageal reflux disease (GERD). Given its high prevalence, the negative impact on quality of life, and the possible progression to esophageal cancer, the definitive treatment of GERD should be used more frequently. This study aims to assess long-term patient satisfaction after laparoscopic Nissen fundoplication (LNF). We reviewed the prospectively collected data of patients who underwent LNF for GERD in our department in 2014–2018. Each patient completed a preoperative questionnaire according to GERD Impact Scale (GERD-IS). Postoperative survey consisted of GERD-IS, the need for PPIs, and two “yes or no” questions to assess satisfaction with the outcome. The mean follow-up time was 50 months (21.2–76.3 ± 16.6 months). There was a statistically significant improvement in each GERD-IS question (p < 0.001). A total of 87 patients (78.4%) would recommend the surgery to their relatives. Patients without symptom recurrence and without the need for chronic PPI use after surgery were significantly more likely to recommend surgery and to undergo the procedure again (p < 001). The age of patients did not influence patients’ recommendations (p = 0.75). A total of 17 patients (15.3%) would not undergo LNF again. There was no significant correlation between the answer and patient’s complications or age (p > 0.05). LNF is a good treatment for GERD with a satisfaction rate of 78.4%.

Is There a Role for Elective Early Upper Gastrointestinal Contrast Study in Neurologically Impaired Children following Laparoscopic Nissen Fundoplication?

Assessment of discomfort as a sign for early postoperative complications in neurologically impaired (NI) children is challenging. The necessity of early routine upper gastrointestinal (UGI) contrast studies following laparoscopic Nissen fundoplication in NI children is unclear. We aimed to evaluate the role of scheduled UGI contrast studies to identify early postoperative complications following laparoscopic Nissen fundoplication in NI children. Data for laparoscopic Nissen fundoplications performed in NI children between January 2004 and June 2021 were reviewed. A total of 103 patients were included, with 60 of these being boys. Mean age at initial operation was 6.51 (0.11–18.41) years. Mean body weight was 16.22 (3.3–62.5) kg. Mean duration of follow up was 4.15 (0.01–16.65 years) years. Thirteen redo fundoplications (12.5%) were performed during the follow up period; eleven had one redo and two had 2 redos. Elective postoperative UGI contrast studies were performed in 94 patients (91%). Early postoperative UGI contrast studies were able to identify only one complication: an intrathoracal wrap herniation on postoperative day five, necessitating a reoperation on day six. The use of early UGI contrast imaging following pediatric laparoscopic Nissen fundoplication is not necessary as it does not identify a significant number of acute postoperative complications requiring re-intervention.

Gastroesophageal reflux disease is associated with differences in the allograft microbiome, microbial density and inflammation in lung transplantation

RationaleGastroesophageal reflux disease (GERD) may affect lung allograft inflammation and function through its effects on allograft microbial community composition in lung transplant recipients.ObjectivesOur objective was to compare the allograft microbiota in lung transplant recipients with or without clinically diagnosed GERD in the first post-transplant year, and assess associations between GERD, allograft microbiota, inflammation and acute and chronic lung allograft dysfunction (ALAD/CLAD).Methods268 bronchoalveolar lavage samples were collected from 75 lung transplant recipients at a single transplant centre every 3 months post-transplant for 1 year. Ten transplant recipients from a separate transplant centre provided samples pre/post-anti-reflux Nissen fundoplication surgery. Microbial community composition and density were measured using 16S rRNA gene sequencing and qPCR, respectively and inflammatory markers and bile acids were quantified.Measurements and Main ResultsWe observed three community composition profiles (labelled community state types, CSTs 1-3). Transplant recipients with GERD were more likely to have CST1, characterized by high bacterial density and relative abundance of the oropharyngeal colonizing genera Prevotella and Veillonella. GERD was associated with more frequent transition to CST1. CST1 was associated with lower per-bacteria inflammatory cytokine levels than the pathogen-dominated CST3. Time-dependant models revealed associations between CST3 and development of ALAD/CLAD. Nissen fundoplication decreased bacterial load and pro-inflammatory cytokines.ConclusionGERD was associated with a high bacterial density, Prevotella/Veillonella dominated CST1. CST3, but not CST1 or GERD, was associated with inflammation and early development of ALAD/CLAD. Nissen fundoplication was associated with decreases in microbial density in BALF samples, especially the CST1-specific genus, Prevotella.

633 CONVERSION TO TOUPET FUNDOPLICATION WITH DISTAL GASTRECTOMY AND ROUX-EN-Y GASTROJEJUNOSTOMY AFTER FAILED NISSEN FUNDOPLICATION

Laparoscopic Nissen Fundoplication fails in almost 15% of patients and most of them must be re-operated in order to improve reflux symptoms, esophagitis, or hiatal hernia. Surgical options are to redo LNF, distal gastrectomy alone or combination of both procedures. Redoing LNF, is associated with high rate of postoperative complications and re-failure. Purpose To present the early and medium-term postoperative outcomes of patients submitted to Laparoscopic Toupet Fundoplication combined with Distal Gastrectomy with Roux-en-Y gastrojejunostomy. Methods prospective study including 23 patients submitted to Laparoscopic Nissen Fundoplication who presented recurrence of gastroesophageal reflux after the operation. They were studied with endoscopy, barium swallow, manometry and 24 h pH monitoring in order to determine presence of esophagitis, anatomical deformities, defective Lower Esophageal Sphincter and pathologic acid reflux. Surgical process consisted on re-establishing the anatomy of the esophago-gastric junction, and then perform laparoscopic Toupet fundoplication combined with distal gastrecvtomy and Roux Y gastrojejunostomy. Results After surgery statistically significant improvement regarding heartburn (p &lt; 0.0001), dysphagia (p &lt; 0.0001) and retrosternal chest pain (p &lt; 0.0001) as well as in the endoscopic esophagitis was observed. No significant LES pressure increase after the operation was observed. (from 7.88 + 2.7 to 10.5 + 3.36) (p = 0.15), but the abnormal acid reflux improved significantly after the reoperation, %time pH &lt; 4 decreases from 12.00 + 6.62 to 4.3 + 4.04 (0.0004) and DeMeester score from 44.82 + 21.8 to 11.95 + 5.14 (0.0008) respectively. Conclusion The proposed procedure is safe option to treat successfully patients after failed Nissen fundoplication. Reflux symptoms, esophagitis, presence oh hiatal hernia and reflux score improved after the procedure.