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Journal of Gastrointestinal and Liver... Dec 2019In this session different problems regarding the pathogenesis of diverticular disease were considered, including "Genetics", "Neuromuscular function abnormalities",...
In this session different problems regarding the pathogenesis of diverticular disease were considered, including "Genetics", "Neuromuscular function abnormalities", "Patterns of mucosa inflammation", and "Impact of lifestyle". The patients affected by diverticular disease have clear genetic pattern, that might predispose to the occurrence of the disease as well as to its complications. Neuromuscular abnormalities may be recognized already at the stage of diverticulosis, and inflammation may explain symptoms occurrence in symptomatic uncomplicated diverticular disease (SUDD) or symptoms persistence after an episode of acute diverticulitis. Finally, lifestyle might also have an impact on symptoms' occurrence. Specifically smoking, but also obesity seem to play an important role, while the role of low-fiber diet and constipation is now under debate.
Topics: Colon; Diverticular Diseases; Diverticulum; Gastrointestinal Motility; Genetic Predisposition to Disease; Humans; Life Style; Obesity; Sensation; Sensation Disorders; Smoking
PubMed: 31930230
DOI: 10.15403/jgld-551 -
International Journal of Molecular... Jun 2022Diverticular disease is a common clinical problem, particularly in industrialized countries. In most cases, colonic diverticula remain asymptomatic throughout life and... (Review)
Review
Diverticular disease is a common clinical problem, particularly in industrialized countries. In most cases, colonic diverticula remain asymptomatic throughout life and sometimes are found incidentally during colonic imaging in colorectal cancer screening programs in otherwise healthy subjects. Nonetheless, roughly 25% of patients bearing colonic diverticula develop clinical manifestations. Abdominal symptoms associated with diverticula in the absence of inflammation or complications are termed symptomatic uncomplicated diverticular disease (SUDD). The pathophysiology of diverticular disease as well as the mechanisms involved in the shift from an asymptomatic condition to a symptomatic one is still poorly understood. It is accepted that both genetic factors and environment, as well as intestinal microenvironment alterations, have a role in diverticula development and in the different phenotypic expressions of diverticular disease. In the present review, we will summarize the up-to-date knowledge on the pathophysiology of diverticula and their different clinical setting, including diverticulosis and SUDD.
Topics: Diverticular Diseases; Diverticulosis, Colonic; Diverticulum, Colon; Humans; Inflammation
PubMed: 35743141
DOI: 10.3390/ijms23126698 -
Annals of the Royal College of Surgeons... Nov 2022We report a rare complication involving a healthy 45-year-old male patient who underwent an emergency laparoscopic appendicectomy for acute perforated gangrenous...
We report a rare complication involving a healthy 45-year-old male patient who underwent an emergency laparoscopic appendicectomy for acute perforated gangrenous appendicitis. The patient was catheterised pre- procedure and the ports were inserted under vision. Upon completion of the procedure, a 15 Fr Robinson drain was left in the pelvis and was fed through the suprapubic port hole. Postoperatively the patient developed worsening, generalised abdominal pain and high output from the drain. The patient was re-catheterised but the computed tomography (CT) cystogram did not show any injury to the bladder. The drain fluid creatinine was noted to be raised (>4,000), indicating that urine was leaking into the drain. Conventional cystogram confirmed a contrast leak from the dome around the drain. Flexible cystoscopy confirmed that the drain had transversed the vesicourachal diverticula. The drain was pulled back and converted to a suprapubic catheter with the patient subsequently being discharged. Vesicourachal diverticula is a rare and often asymptomatic anomaly. When undertaking laparoscopic surgery, precautions should be taken to prevent port site injury such as catheterising the patient to ensure the bladder is empty and inserting the ports under direct vision. It is safer to visualise muscle rather than peritoneum during port insertion. In this case, the bladder diverticula was noticed extraperitoneally. Though the indirect CT cystogram reported no injury, this was unreliable as the bladder was not distended which led to the subtle injury being missed. Traditional cystogram should be considered in cases with a negative CT cystogram and a strong suspicion of bladder injury.
Topics: Male; Humans; Middle Aged; Urinary Bladder; Diverticulum; Urinary Bladder Diseases; Cystoscopy
PubMed: 35446699
DOI: 10.1308/rcsann.2021.0344 -
World Journal of Gastroenterology Jan 2024Esophageal intramural pseudodiverticulosis (EIPD) is a disease of unknown pathogenesis characterized by usually systemic, cystic dilatation of the excretory ducts of... (Review)
Review
Esophageal intramural pseudodiverticulosis (EIPD) is a disease of unknown pathogenesis characterized by usually systemic, cystic dilatation of the excretory ducts of esophageal submucosal glands. In this article, I review the epidemiology, clinical manifestations, endoscopic findings, esophagographic findings, and histopathology of EIPD. I also discuss the etiology and possible pathogenesis of EIPD based on my experiences with this disease and a review of the literature. EIPD usually presents with dysphagia in middle-aged individuals. It is often complicated with secondary infections, most commonly candidiasis. On esophagography, EIPD is delineated as small, multiple, flask-shaped outward projections within the esophageal wall. In recent years, EIPD has been mainly diagnosed by endoscopic findings of multiple, localized, small mucosal depressions. The orifices of the "pseudodiverticula" periodically open and close, and excrete mucus onto the mucosal surface. On histopathological examination, the luminal surface of dilated ducts in EIPD is covered by multilayered, hyperplastic epithelial cells, but myoepithelial cells in the glandular acini are well preserved. Treatment of EIPD is usually symptomatic therapy, and prevention of the infectious complications is important. The etiology and pathogenesis of EIPD are largely unknown, but functional abnormalities of autonomic nerve fibers innervating the esophageal glands likely play an important role, since the structures of the glands are basically preserved in this disease.
Topics: Middle Aged; Humans; Diverticulum, Esophageal; Deglutition Disorders; Diverticulum; Mucous Membrane; Esophageal Stenosis
PubMed: 38312118
DOI: 10.3748/wjg.v30.i2.137 -
International Journal of Colorectal... Sep 2023There is a hypothesis of an association between diverticulosis and metabolic syndrome (MS) or its components, but data on this topic are inconsistent, and a systematic... (Review)
Review
BACKGROUND
There is a hypothesis of an association between diverticulosis and metabolic syndrome (MS) or its components, but data on this topic are inconsistent, and a systematic review has not been performed. We conducted a systematic review to investigate the possible association between cardiometabolic risk factors and diverticulosis.
METHODS
A systematic literature search was conducted via PubMed, Cochrane Library, and Web of Science in December 2022 to collect the necessary data. Studies that examined the association between MS or individual metabolic factors and asymptomatic diverticulosis were included in the review.
RESULTS
Of the potentially relevant articles identified via PubMed (477), Cochrane Library (224), and Web of Science (296), 29 articles met the inclusion criteria and were used for this work. These studies were assessed for study quality using GRADE. Overall, 6 studies were rated as "very low," 19 studies as "low," and 4 studies as "moderate." The data suggest an association between arterial hypertension, obesity, and fatty liver disease in younger patients and diverticulosis. Patient age appears to play an important role in diverticular formation. Data on diabetes mellitus is inconclusive and may require further investigation depending on the location of the diverticula.
CONCLUSION
Based on the synthesized data, there is an association between arterial hypertension, obesity, and fatty liver disease in younger patients. The formation of diverticula seems to be influenced by age and genetic factors. The study suggests a connection with cardiometabolic risk factors. To gain a better understanding of the role of metabolic risk factors in asymptomatic diverticulosis, targeted studies are necessary based on these findings.
Topics: Humans; Diverticulum; Hypertension; Obesity; Risk Factors; Liver Diseases
PubMed: 37725283
DOI: 10.1007/s00384-023-04532-4 -
Journal of Gastrointestinal and Liver... Sep 2019Gut microbiota composition and functionality are involved in the pathophysiology of several intestinal and extraintestinal diseases, and are increasingly considered a... (Review)
Review
Gut microbiota composition and functionality are involved in the pathophysiology of several intestinal and extraintestinal diseases, and are increasingly considered a modulator of local and systemic inflammation. However, the involvement of gut microbiota in diverticulosis and in diverticular disease is still poorly investigated. In this review, we critically analyze the existing evidence on the fecal and mucosa-associated microbiota composition and functionality across different stages of diverticular disease. We also explore the influence of risk factors for diverticulosis on gut microbiota composition, and speculate on the possible relevance of these associations for the pathogenesis of diverticula. We overview the current treatments of diverticular disease targeting the intestinal microbiome, highlighting the current areas of uncertainty and the need for future studies. Although no conclusive remarks on the relationship between microbiota and diverticular disease can be made, preliminary data suggest that abdominal symptoms are associated with reduced representation of taxa with a possible anti-inflammatory effect, such as Clostridium cluster IV, and overgrowth of Enterobacteriaceae, Bifidobacteria and Akkermansia. The role of the microbiota in the early stages of the disease is still very uncertain. Future studies should help to disentangle the role of the microbiome in the pathogenesis of diverticular disease and its progression towards more severe forms.
Topics: Animals; Bacteria; Diverticulitis; Diverticulum; Dysbiosis; Feces; Gastrointestinal Microbiome; Host-Pathogen Interactions; Humans; Intestinal Mucosa; Risk Factors
PubMed: 31517330
DOI: 10.15403/jgld-277 -
Medicina 2020
Topics: Diverticulum; Humans
PubMed: 32841144
DOI: No ID Found -
Current Gastroenterology Reports Jun 2023A distinctive, possibly "novel" form of a segmental inflammatory colonic disease process associated with diverticular disease (so-called SCAD or... (Review)
Review
PURPOSE OF REVIEW
A distinctive, possibly "novel" form of a segmental inflammatory colonic disease process associated with diverticular disease (so-called SCAD or segmental-colitis-associated-diverticulosis) is reviewed.
RECENT FINDINGS
Although this phenotype of inflammatory colonic disease was initially recognized decades ago, mainly in the elderly, recent evidence from long term natural history studies along with meta-analyses confirms that its clinical course is usually benign and drug-responsive. Interestingly, its appearance in some treated with monoclonal agents (eg., ipilimumab associated colitis) or infected with coronavirus-19 may have critical implications for its pathogenesis. This review further explores the implications of recognition of this pattern of colonic inflammatory disease, with relevance for physicians involved in both clinical practice and clinical trials of newer therapeutic agents.
Topics: Humans; Colitis; Diverticulum
PubMed: 37129830
DOI: 10.1007/s11894-023-00871-y -
PloS One 2021The etiology of diverticulosis is still poorly understood. However, in patients with diverticulitis, markers of mucosal inflammation and microbiota alterations have been...
INTRODUCTION
The etiology of diverticulosis is still poorly understood. However, in patients with diverticulitis, markers of mucosal inflammation and microbiota alterations have been found. The aim of this study was to evaluate potential differences of the gut microbiota composition and mucosal immunity between patients with asymptomatic diverticulosis and controls.
METHODS
We performed a prospective study on patients who underwent routine colonoscopy for causes not related to diverticular disease or inflammatory bowel disease. Participants were grouped based on the presence or absence of diverticula. Mucosal biopsies were obtained from the sigmoid and transverse colon. Microbiota composition was analyzed with IS-pro, a 16S-23S based bacterial profiling technique. To predict if patients belonged to the asymptomatic diverticulosis or control group a partial least squares discriminant analysis (PLS-DA) regression model was used. Inflammation was assessed by neutrophil and lymphocyte counts within the taken biopsies.
RESULTS
Forty-three patients were enrolled. Intestinal microbiota profiles were highly similar within individuals for all phyla. Between individuals, microbiota profiles differed substantially but regardless of the presence (n = 19) of absence (n = 24) of diverticula. Microbiota diversity in both sigmoid and transverse colon was similar in all participants. We were not able to differentiate between diverticulosis patients and controls with a PLS-DA model. Mucosal lymphocyte counts were comparable among both groups; no neutrophils were detected in any of the studied biopsies.
CONCLUSIONS
Microbiota composition and inflammatory markers were comparable among asymptomatic diverticulosis patients and controls. This suggests that the gut microbiota and mucosal inflammation do not play a major role in the pathogenesis of diverticula formation.
Topics: Aged; Asymptomatic Diseases; Colon, Sigmoid; Colonoscopy; Diverticulum; Female; Gastrointestinal Microbiome; Humans; Immunity, Mucosal; Inflammation; Male; Middle Aged; RNA, Ribosomal, 16S
PubMed: 34492052
DOI: 10.1371/journal.pone.0256657 -
Hawai'i Journal of Medicine & Public... Aug 2017There have been conflicting reports on the association of alcohol use and diverticular disease. We aimed to determine the odds of developing diverticular disease and... (Meta-Analysis)
Meta-Analysis Review
There have been conflicting reports on the association of alcohol use and diverticular disease. We aimed to determine the odds of developing diverticular disease and diverticular bleeding in patients who consumed alcohol on a regular basis compared with those who did not. MEDLINE and PUBMED were searched up until February 2017 on observational trials, which investigated the effect of alcohol use on two outcomes of diverticular disease: diverticulosis and diverticular bleeding. Quantitative estimates (odds ratios [OR] and confidence intervals [CI]) from included studies were pooled by using a random-effects model. Heterogeneity across studies was assessed by the I statistic. In 6 studies including 53,644 subjects and 6 studies including 3,404 subjects, alcohol consumption on a regular basis was not associated with either diverticulosis (OR=1.99; 95% CI 0.99-4.03, I=99%) or diverticular bleeding (OR=1.39; 95% CI 0.84-2.32, I=45%) compared to subjects who did not consume alcohol on a regular basis, respectively. Increased odds of diverticulosis or diverticular bleeding among individuals who consume alcohol on a regular basis were not observed in these meta-analyses.
Topics: Alcohol Drinking; Diverticulum; Gastrointestinal Hemorrhage; Humans; Risk Factors
PubMed: 28808610
DOI: No ID Found