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Obesity Surgery Jan 2024We reviewed the literature on the prevalence of small intestinal bacterial overgrowth (SIBO) after Roux-en-Y gastric bypass (RYGB). Eight studies examining 893 patients... (Meta-Analysis)
Meta-Analysis Review
We reviewed the literature on the prevalence of small intestinal bacterial overgrowth (SIBO) after Roux-en-Y gastric bypass (RYGB). Eight studies examining 893 patients were included. The mean age of the patients was 48.11 ± 4.89 years. The mean BMI before surgery and at the time of SIBO diagnosis was 44.57 ± 2.89 kg/m and 31.53 ± 2.29 kg/m, respectively. Moreover, the results showed a 29% and 53% prevalence of SIBO at < 3-year and > 3-year follow-up after RYGB, respectively. Symptoms included abdominal pain, diarrhea, bloating, nausea, vomiting, constipation, soft stool, frequent defecation, flatulence, rumpling, dumping syndrome, and irritable bowel syndrome. SIBO is prevalent after RYGB; digestive symptoms should prompt the consideration of SIBO as a potential etiology. Antibiotic therapy has proven to be therapeutic.
Topics: Humans; Adult; Middle Aged; Gastric Bypass; Obesity, Morbid; Prevalence; Biliopancreatic Diversion; Flatulence; Gastrectomy; Retrospective Studies
PubMed: 38062344
DOI: 10.1007/s11695-023-06974-9 -
World Journal of Surgical Oncology Sep 2022Pylorus-preserving gastrectomy (PPG) is a function-preserving surgery for the treatment of early gastric cancer (EGC) in the middle third of the stomach. According to... (Meta-Analysis)
Meta-Analysis
BACKGROUND
Pylorus-preserving gastrectomy (PPG) is a function-preserving surgery for the treatment of early gastric cancer (EGC) in the middle third of the stomach. According to the literature reports, PPG decreases the incidence of dumping syndrome, bile reflux, gallstone formation, and nutritional deficit compared with conventional distal gastrectomy (CDG). However, the debates about PPG have been dominated by the incomplete lymphadenectomy and oncological safety. We carried out a systematic review and meta-analysis to evaluate the pathological and oncological outcomes of PPG.
METHODS
The protocol was registered in PROSPERO under number CRD42022304677. Databases including PubMed, Embase, Web of Science, and the Cochrane Register of Controlled Trials were searched before February 21, 2022. The outcomes included the pooled odds ratios (ORs) for dichotomous variables and weighted mean differences (WMDs) for continuous variables. For all outcomes, 95% confidence intervals (CIs) were calculated. Meta-analysis was performed using STATA software (Stata 14, Stata Corporation, Texas) and Review Manager 5.4.
RESULTS
A total of 4500 patients from 16 studies were included. Compared with the CDG group, the PPG group had fewer lymph nodes harvested (WMD= -3.09; 95% CI -4.75 to -1.43; P < 0.001). Differences in the number of resected lymph nodes were observed at stations No. 5, No. 6, No. 9, and No. 11p. There were no differences in lymph node metastasis at each station. Shorter proximal resection margins (WMD = -0.554; 95% CI -0.999 to -0.108; P = 0.015) and distal resection margins (WMD = -1.569; 95% CI -3.132 to -0.007; P = 0.049) were observed in the PPG group. There were no significant differences in pathological T1a stage (OR = 0.99; 95% CI 0.80 to 1.23; P = 0.88), T1b stage (OR = 1.01; 95% CI 0.81 to 1.26; P = 0.88), N0 stage (OR = 0.97; 95% CI 0.63 to 1.48; P = 0.88), tumor size (WMD = -0.10; 95% CI -0.25 to 0.05; P = 0.187), differentiated carcinoma (OR = 1.04; 95% CI 0.74 to 1.47; P = 0.812) or signet ring cell carcinoma (OR = 1.22; 95% CI 0.90 to 1.64; P = 0.198). No significant differences were observed between the groups in terms of overall survival (HR = 0.63; 95% CI 0.24 to 1.67; P = 0.852) or recurrence-free survival (HR = 0.29; 95% CI 0.03 to 2.67; P = 0.900).
CONCLUSIONS
The meta-analysis of existing evidence demonstrated that the survival outcomes of PPG may be comparable to those of CDG. However, fewer lymph nodes at stations in No. 5, No. 6, No. 9, and No. 11p were harvested with PPG. We also found shorter proximal resection margins and distal resection margins for PPG, meaning more remnant stomachs would be preserved in PPG.
Topics: Gastrectomy; Gastroenterostomy; Humans; Laparoscopy; Margins of Excision; Pylorus; Stomach Neoplasms; Treatment Outcome
PubMed: 36153587
DOI: 10.1186/s12957-022-02766-0 -
World Journal of Surgical Oncology Jul 2020Due to better functional outcomes, pylorus-preserving gastrectomy (PPG) has been widely applied for early gastric cancer (EGC) patients as an alternative to distal... (Meta-Analysis)
Meta-Analysis
BACKGROUND
Due to better functional outcomes, pylorus-preserving gastrectomy (PPG) has been widely applied for early gastric cancer (EGC) patients as an alternative to distal gastrectomy (DG). However, controversies still persist regarding the surgical efficacy and oncological safety of PPG.
METHODS
Original studies comparing PPG and DG for EGC were searched in PubMed, Embase, and the Cochrane Register of Controlled Trials up to December 2019. The weight mean difference, standardized mean difference, or odds risk was used to calculate the short-term and long-term outcomes between the two groups.
RESULTS
Twenty-one comparative studies comprising 4871 patients (1955 in the PPG group and 2916 in the DG group) were enrolled in this systematic review and meta-analysis. PPG showed longer hospital day, decreased harvested lymph nodes, and more delayed gastric emptying. However, PPG had the benefits of lower incidence of anastomosis leakage, early dumping syndrome, gastritis and bile reflux, and better recovery of total protein, albumin, hemoglobin, and weight. No difference was found in operative time, blood loss, and overall complications. Moreover, the long-term survival and recurrence rate were similar in two groups.
CONCLUSION
Owing to the non-inferiority of surgery and oncology outcomes and the superiority of function outcomes in PPG, we revealed that PPG can be clinically applicable instead of DG in EGC. However, more high-quality comparative studies and randomized clinical trials would be required for further confirmation.
Topics: Gastrectomy; Humans; Neoplasm Recurrence, Local; Prognosis; Pylorus; Stomach Neoplasms; Treatment Outcome
PubMed: 32641052
DOI: 10.1186/s12957-020-01910-y -
Journal of Pediatric Surgery Sep 2017The indications of esophageal replacement (ER) in pediatric patients include long gap esophageal atresia (LGEA), intractable post-corrosive esophageal strictures (PCES),... (Review)
Review
BACKGROUND
The indications of esophageal replacement (ER) in pediatric patients include long gap esophageal atresia (LGEA), intractable post-corrosive esophageal strictures (PCES), and some rare esophageal diseases. Various conduits and procedures are currently used worldwide with a lack of consensus regarding the ideal substitute to replace the esophagus replacement. The short-term outcomes of these advanced procedures are well known; there are few data available describing long-term functional outcomes of these patients with long life expectancy.
OBJECTIVES
The objective of this study is to investigate the long-term functional outcomes of the most widely used techniques for ER in pediatric patients based on a comprehensive literature search covering the last 10years.
METHODS
Eligible were all clinical studies reporting outcomes after esophagectomy in pediatric patients, which contained information on at least 3years of follow-up after the operation. The review was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. A systematic web-based search using MEDLINE, the Cochrane Library and EMBASE databases was performed, reviewing all medical literature published between January 2006 and December 2015.
RESULTS
The scientific quality of the data was generally poor, converging toward only 14 full-text articles for the final analysis. The stomach was the preferred organ for esophageal replacement, where the tubulization of the stomach resulted in significant gastroesophageal reflux. Dysphagia symptoms were more seldom reported, but several authors presented growing figures with the length of follow-up. Dumping syndrome and delayed gastric emptying were only scarcely reported upon. Following colonic graft, chronic gastrocolic reflux affects these patients, in the range of 35-70.8%, while 4 studies reported any dysphagia from 2.7% to 50% of the children. Only one study reported the outcome of the use of a long jejunal segment, where presence of symptoms of functional obstruction was mentioned in 46% of cases. Very few if any data were available on a structured assessment of postprandial dumping and disturbed bowel functions.
CONCLUSIONS
Available data in pediatric patients, on the long-term functional outcomes after esophageal replacement with a gastric tube, colonic graft or a long jejunal segment, are of poor scientific quality. Although symptoms are frequently reported currently no conclusions can be drawn regarding potential advantages of one graft over another.
TYPE OF STUDY
Treatment study, systematic review.
LEVEL OF EVIDENCE
IV.
Topics: Child; Child Welfare; Esophageal Atresia; Esophageal Diseases; Esophageal Stenosis; Esophagoplasty; Humans; Infant; Jejunum
PubMed: 28625693
DOI: 10.1016/j.jpedsurg.2017.05.034 -
Obesity Surgery Oct 2014Primary banding of Roux-en-Y gastric bypass remains controversial. Though there are surgeons who believe it should be the standard practice as it results in superior... (Review)
Review
Primary banding of Roux-en-Y gastric bypass remains controversial. Though there are surgeons who believe it should be the standard practice as it results in superior weight loss and prevents weight regain in the long term, there are others who are concerned about the risk of food intolerance and complications related to band. This review investigates published English language literature systematically to find out the advantages and disadvantages of primary banding of a Roux-en-Y gastric bypass.
Topics: Constriction, Pathologic; Dumping Syndrome; Foreign-Body Migration; Gastric Bypass; Gastroplasty; Humans; Laparoscopy; Obesity, Morbid; Quality of Life; Weight Loss
PubMed: 24968745
DOI: 10.1007/s11695-014-1346-3 -
Journal of Gastrointestinal Surgery :... May 2013Various reconstruction procedures have been proposed for restoring the alimentary tract continuity after total gastrectomy. However, so far there is no consensus on the... (Review)
Review
BACKGROUND
Various reconstruction procedures have been proposed for restoring the alimentary tract continuity after total gastrectomy. However, so far there is no consensus on the ideal post-gastrectomy reconstruction procedure. The necessity of preserving the duodenal passage is one of the major focuses of the debate concerning gastrointestinal reconstruction and is the objective of this study.
METHODS
A systematic literature search of PubMed, EMBASE, the Cochrane Library, SCI, and Chinese Biomedical Literature Database (CBM) was carried out before March 2012 to obtain studies of randomized controlled trials (RCT). Analysis was performed using RevMan 5.0 software.
RESULTS
Nine RCTs involving 642 participants met the selection criteria. The results of the meta-analyses showed that operative mortality and morbidity were not significantly different between the two procedures (preservation vs. non-preservation of duodenum). However, operative time was considerably prolonged by preserving the duodenal passage. Patients in the preservation group had an improved nutritional parameters (body weight, levels of serum iron and hemoglobin) in the short term (<6 months) after surgery. Beneficial effect on preventing postgastrectomy symptom (heartburn, dumping syndrome) was not found by maintaining the duodenal passage throughout a 2-year follow-up. Moreover, a qualitative measurement showed that no significant quality of life improvement for patients with a preserved duodenal passage.
CONCLUSION
This systematic review failed to demonstrate obvious advantage in preserving duodenal passage after total gastrectomy.
Topics: Dumping Syndrome; Duodenum; Gastrectomy; Heartburn; Humans; Postoperative Complications; Quality of Life; Plastic Surgery Procedures
PubMed: 23460248
DOI: 10.1007/s11605-013-2174-9 -
Diseases of the Esophagus : Official... Dec 2017It is generally recognized that in patients with an intact stomach diagnosed with esophageal cancer, gastric tubulization and pull-up shall always be the preferred... (Review)
Review
It is generally recognized that in patients with an intact stomach diagnosed with esophageal cancer, gastric tubulization and pull-up shall always be the preferred technique for reconstruction after an esophageal resection. However, in cases with extensive gastroesophageal junction (GEJ) cancer with aboral spread and after previous gastric surgery, alternative methods for reconstruction have to be pursued. Moreover, in benign cases as well as in those with early neoplastic lesions of the esophagus and the GEJ that are associated with long survival, it is basically unclear which conduit should be recommended. The aim of this study is to determine the long-term functional outcomes of different conduits used for esophageal replacement, based on a comprehensive literature review. Eligible were all clinical studies reporting outcomes after esophagectomy, which contained information on at least three years of follow-up after the operation in patients who were older than 18 years of age at the time of the operation. The review was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. A systematic web-based search using MEDLINE, the Cochrane Library, and EMBASE databases was performed, reviewing medical literature published between January 2006 and December 2015. The scientific quality of the data was generally low, which allowed us to incorporate only 16 full text articles for the final analyses. After a gastric pull-up, the proportion of patients who suffered from dysphagia varied substantially but seemed to decrease over time with a mild dysphagia remaining during long-term follow-up. When reflux-related symptoms and complications were addressed, roughly two third of patients experienced mild to moderate reflux symptoms a long time after the resection. Following an isoperistaltic colonic graft, the functional long-term outcomes regarding swallowing difficulties were sparsely reported, while three studies reported reflux/regurgitation symptoms in the range of 5% to 16%, one of which reported the symptom severity as being mild. Only one report was available after the use of a long jejunal segment, which contained only six patients, who scored the severity of dysphagia and reflux as mild. Very few if any data were available on a structured assessment of dumping and disturbed bowel functions. Few high-quality data are available on the long-term functional outcomes after esophageal replacement irrespective of the use of a gastric tube, the right or left colon or a long jejunal segment. No firm conclusions regarding the advantages of one graft over the other can presently be drawn.
Topics: Colon; Deglutition Disorders; Dumping Syndrome; Esophagectomy; Esophagoplasty; Gastric Emptying; Humans; Jejunum; Laryngopharyngeal Reflux; Postoperative Complications; Stomach; Surgically-Created Structures; Time Factors
PubMed: 28881882
DOI: 10.1093/dote/dox083 -
Annals of Surgery Jun 2019The aim of the study was to assess the impact of pouch reconstruction on perioperative outcomes, postprandial symptoms, nutritional and anthropometric parameters, and... (Meta-Analysis)
Meta-Analysis
OBJECTIVE
The aim of the study was to assess the impact of pouch reconstruction on perioperative outcomes, postprandial symptoms, nutritional and anthropometric parameters, and overall quality of life after total gastrectomy for gastric malignancy.
SUMMARY BACKGROUND DATA
The short-term perioperative risks and longer term functional value of creating a small-bowel reservoir after total gastrectomy are contended.
METHODS
A search for randomized and non-randomized studies comparing reconstruction with or without a pouch was conducted. Treatment effects were computed using pairwise random-effects meta-analysis and meta-regression, and the systematic review was conducted in accordance with PRISMA and MOOSE guidelines.
RESULTS
A total of 17 randomized trials and 8 observational studies involving 1621 participants were included. Pouch creation is associated with an increased operation time [259.3 vs 235.8 min; weighted mean difference (WMD) 23.5, 95% confidence interval (CI) 9.8-37.2], but not hospitalization duration. There was no difference in overall postsurgical complications, including anastomotic leak and abdominal abscess. Pouch formation markedly reduces the risk of dumping syndrome at 3 to 6 months [8.1% vs 32.4%; risk ratios (RR) 0.36, 95% CI, 0.21-0.60] and 12 to 24 months (2.8% vs 23.6%; RR 0.27, 95% CI, 0.16-0.46). The functional advantages of pouch reconstruction persist at 1 to 2 years, with aggregated data indicating considerably lower risks of esophagitis and heartburn (63% relative reduction), dumping syndrome (73% relative reduction), and food intake disturbance (50% relative reduction). At 12 to 24 months, albumin levels (40.5 vs 37.9 g/L; WMD 2.59, 95% CI, 1.35-3.84) and body mass index (22.2 vs 20.9 kg/m; WMD 1.28, 95% CI, 0.61-1.94) are significantly higher among participants with a pouch.
CONCLUSIONS
Pouch creation improves long-term functional and nutritional outcomes after total gastrectomy, without greater perioperative morbidity.
Topics: Gastrectomy; Humans; Plastic Surgery Procedures; Stomach Neoplasms; Surgically-Created Structures
PubMed: 31082900
DOI: 10.1097/SLA.0000000000003082 -
Journal of Gastrointestinal Surgery :... Mar 2024Increased survival of patients undergoing total gastrectomy for gastric cancer has prompted several efforts to improve long-term postgastrectomy syndrome (PGS) outcomes.... (Meta-Analysis)
Meta-Analysis
BACKGROUND
Increased survival of patients undergoing total gastrectomy for gastric cancer has prompted several efforts to improve long-term postgastrectomy syndrome (PGS) outcomes. Whether a J-pouch (JP) reconstruction may be more beneficial than a standard Roux-en-Y (RY) is controversial.
METHODS
A systematic review with meta-analysis was conducted, including studies reporting long-term outcomes of patients treated with total gastrectomy and JP vs RY esophagojejunostomy for gastric adenocarcinoma. A literature search was performed on PubMed, Scopus, and Google Scholar. Primary endpoints were symptom control, weight loss, eating capacity (EC), and quality of life (QoL) with at least 6 months of follow-up. Safety endpoints were explored.
RESULTS
Overall, 892 patients were included from 15 studies (6 randomized controlled trials [RCTs] and 9 non-RCTs): 452 (50.7%) in the JP group and 440 (49.3%) in the RY group. Compared with RY, JP showed a significantly lower rate of dumping syndrome (13.8% vs 26.9%, odds ratio [OR], 0.29; 95% confidence interval [CI], 0.14-0.58; P < .001; I = 22%) and heartburn symptoms (20.4% vs 39.0%; OR, 0.29; 95% CI, 0.14-0.64; P = .002; I = 0%). Reflux (OR, 0.61; 95% CI, 0.28-1.32; P = .21; I = 42%) and epigastric fullness (OR, 0.60; 95% CI, 0.18-2.05; P = .41; I = 69%) were similar in both groups. Weight loss and EC were similar between the groups. QoL outcome seemed to be burdened by bias. There was no difference in morbidity, mortality, and anastomotic leak rate between groups. Operative time was significantly longer for JP than for RY (271.9 vs 251.6 minutes, respectively; mean difference, 21.55; 95% CI, 4.64-38.47; P = .01; I = 96%).
CONCLUSION
JP reconstruction after total gastrectomy for gastric cancer is as safe as RY and may provide an advantage in postgastrectomy dumping syndrome and heartburn symptoms.
Topics: Humans; Colonic Pouches; Dumping Syndrome; Gastrectomy; Heartburn; Postgastrectomy Syndromes; Randomized Controlled Trials as Topic; Stomach Neoplasms; Weight Loss
PubMed: 38445924
DOI: 10.1016/j.gassur.2023.12.015 -
Surgical Laparoscopy, Endoscopy &... Apr 2019The meta-analysis was performed to compare surgical and functional results of double-tract (DT) and Roux-en-Y (RY) reconstruction, applied in both partial and total... (Comparative Study)
Comparative Study Meta-Analysis
BACKGROUND
The meta-analysis was performed to compare surgical and functional results of double-tract (DT) and Roux-en-Y (RY) reconstruction, applied in both partial and total gastrectomy.
METHODS
PubMed, Ovid, Web of Science, Wiley, EBSCO, and the Cochrane Library Central were searched for studies comparing DT and RY after partial or total gastrectomy. Surgical, nutritional, and long-term outcomes were collected and analyzed.
RESULTS
A total of 595 patients from 8 studies were included. Operative time, time to first flatus, length of hospital stays, complications, postoperative nutritional variables, and functional result were similar between 2 groups. Group DT had significantly less blood loss, shorter time to oral intake and less loss of body weight at 2 years after operation.
CONCLUSIONS
DT reconstruction is comparable with RY after gastrectomy in safety, surgical outcomes including reflux symptom and postoperative recovery and shows better food intake and body weight maintenance.
Topics: Adult; Aged; Anastomosis, Roux-en-Y; Blood Loss, Surgical; Body Mass Index; Body Weight; Dumping Syndrome; Female; Gastrectomy; Gastroesophageal Reflux; Humans; Length of Stay; Male; Middle Aged; Neoplasm Staging; Nutritional Status; Operative Time; Postoperative Care; Postoperative Complications; Recovery of Function; Stomach Neoplasms; Treatment Outcome; Tumor Burden
PubMed: 30720693
DOI: 10.1097/SLE.0000000000000639