Acute Uncomplicated Diverticulitis Research Articles

Systematic review and meta-analysis of the management of acute uncomplicated diverticulitis: time to change traditional practice

BackgroundTo evaluate comparative outcomes of outpatient (OP) versus inpatient (IP) treatment and antibiotics (ABX) versus no antibiotics (NABX) approach in the treatment of uncomplicated (Hinchey grade 1a) acute diverticulitis.MethodsA systematic online search was conducted using electronic databases. Comparative studies of OP versus IP treatment and ABX versus NABX approach in the treatment of Hinchey grade 1a acute diverticulitis were included. Primary outcome was recurrence of diverticulitis. Emergency and elective surgical resections, development of complicated diverticulitis, mortality rate, and length of hospital stay were the other evaluated secondary outcome parameters.ResultsThe literature search identified twelve studies (n = 3,875) comparing NABX (n = 2,008) versus ABX (n = 1,867). The NABX group showed a lower disease recurrence rate and shorter length of hospital stay compared with the ABX group (P = 0.01) and (P = 0.004). No significant difference was observed in emergency resections (P = 0.33), elective resections (P = 0.73), development of complicated diverticulitis (P = 0.65), hospital re-admissions (P = 0.65) and 30-day mortality rate (P = 0.91). Twelve studies (n = 2,286) compared OP (n = 1,021) versus IP (n = 1,265) management of uncomplicated acute diverticulitis. The two groups were comparable for the following outcomes: treatment failure (P = 0.10), emergency surgical resection (P = 0.40), elective resection (P = 0.30), disease recurrence (P = 0.22), and mortality rate (P = 0.61).ConclusionObservation-only treatment is feasible and safe in selected clinically stable patients with uncomplicated acute diverticulitis (Hinchey 1a classification). It may provide better outcomes including decreased length of hospital stay. Moreover, the OP approach in treating patients with Hinchey 1a acute diverticulitis is comparable to IP management. Future high-quality randomised controlled studies are needed to understand the outcomes of the NABX approach used in an OP setting in managing patients with uncomplicated acute diverticulitis.

Current Diagnosis and Management of Acute Colonic Diverticulitis: What You Need To Know.

Acute colonic diverticulitis is a common disease treated by acute care surgeons. Acute uncomplicated colonic diverticulitis involves thickening of the colon wall and inflammatory changes and less commonly requires the expertise of a surgeon; many cases may be treated as an outpatient with or without antibiotics. Complicated diverticulitis involves phlegmon, abscess, peritonitis, obstruction, stricture, and/or fistula and usually requires inpatient hospital admission, treatment with antibiotics, and consideration for intervention including operative management. This review will discuss what the acute care surgeon needs to know about diagnosis and management of acute colonic diverticulitis.

Efficacy of observational care versus antibiotic therapy for treatment of acute uncomplicated diverticulitis

A clinical decision report using: van Dijk ST, Daniels L, Ünlü Ç, et al. for the Dutch Diverticular Disease (3D) Collaborative Study Group. Long-Term Effects of Omitting Antibiotics in Uncomplicated Acute Diverticulitis. Am J Gastroenterol. 2018;113(7):1045-1052. https://doi.org/10.1038/s41395-018-0030-y for a patient with acute uncomplicated diverticulitis.

Enfermedad diverticular

Diverticula are sac-like protrusions that appear in the weak points of the colon wall. They are usually asymptomatic. Diverticular disease develops when symptoms appear. Its etiopathogenesis is likely multifactorial, although it is not fully known. Complicated diverticulosis includes acute diverticulitis, which is the most frequent complication and one of the most common reasons for consultation in emergency departments, and diverticular hemorrhage, one of the most frequent causes of lower gastrointestinal bleeding in our setting. A diagnosis of acute diverticulitis is established through an abdominal computed tomography scan. A diagnosis of hemorrhage is established by performing a full colonoscopy, for which adequate prior preparation of the patient by means of taking an oral laxative solution is recommended. The treatment of acute diverticulitis has classically been based on the use of antibiotics, although current evidence supports a decrease in the use of antibiotic treatment in patients with uncomplicated acute diverticulitis. In this disease, antibiotics must target a polymicrobial etiology consisting mainly of gram-negative and anaerobic bacilli.

Results of a national survey about the management of patients with acute uncomplicated diverticulitis

IntroductionManagement of patients diagnosed of acute uncomplicated diverticulitis has evolved lately and according to the latest guidelines, outpatient treatment and management without antibiotherapy may be used in selected patients. The aim of this study is to evaluate the adhesión among national centres to these and others recommendations related to this pathology. MethodsAn online national survey, that has been broadcast by several applications, was performed. The results obtained were statistically analysed. ResultsA total of 104 surgeons participated, representing 69 national hospitals. Of those, in 82.6% of the centres, outpatient management is performed for acute uncomplicated diverticulitis. 23.2% of the hospitals have a protocol stablished for treatment without antibiotherapy in selected patients. Centres that do not follow these protocols allege that the mean reasons are the logistic difficulties to set them up (49.3%) and the lack of current evidence for it (44.8%). Significative statistical differences have been found when comparing the establishment of such protocols between centres with advanced accredited units and those who are not, with higher rates of outpatient management and treatment without antibiotics in accredited units (p ≤ .05). ConclusionsIn spite that this a very common disease, there is a huge national heterogeneity in its treatment. This is why it would adviseable to unify diagnostic and treatment criteria by the collaboration of scientific societies and the simplification of the development of hospitalary protocols.

Association between Hospital Prescribed Diets and Length of Stay, Re-Presentation, and Gastrointestinal Symptoms among Acute Uncomplicated Diverticulitis Patients: A Prospective Cohort Study

Background and aim: Variation in practice has been observed among the prescribed diets for inpatients with acute, uncomplicated diverticulitis. This study aimed to observe outcomes (length of stay (LOS), re-presentations, and gastrointestinal symptoms) for acute, uncomplicated diverticulitis inpatients prescribed restricted or liberalised diets during usual care. Methods: Adult inpatients with acute, uncomplicated diverticulitis were prospectively enrolled from 2017 to 2019. Demographics, clinical data, and prescribed diets were collected from medical records. Patients were categorised as having restricted or liberalised diets. Primary outcomes were LOS, re-presentations related to diverticulitis, and gastrointestinal symptoms, collected from medical records and patient surveys. Descriptive statistics were used to characterise all variables. Adjusted regression analysis was used to determine the effect of diet prescription on primary outcomes. Results: Of the 81 included patients, 47% were prescribed restricted diets, and 53% were prescribed liberalised diets. Patients prescribed restricted diets had greater LOS (median 4.0 (IQR: 3.5–5.1) vs. 2.8 (IQR: 2.2–3.8) days, p < 0.001) and were more likely to re-present due to diverticulitis at six months (OR 8.1, 95% CI 1.3–51.0, p = 0.025) in adjusted models. No difference in gastrointestinal symptoms was observed 30-days post-admission. Conclusion: In patients hospitalised with uncomplicated diverticulitis, restricted diets may be associated with longer LOS and increased odds of re-presentation at 6 months compared to liberalised diets. No differences in post-discharge gastrointestinal symptoms were observed between restricted versus liberalised diets. Randomised controlled trials are needed to confirm the causal role of inpatient diet prescription on clinical outcomes, healthcare utilisation, and patient experience. Registration: prospectively registered; ANZCTR Number: ACTRN12616001378415.

Level 1a Evidence Comparing Use of Antibiotics Versus No Antibiotics in Management of Acute Left-Sided Uncomplicated Diverticulitis.

Acute uncomplicated diverticulitis (AUD) is a common cause of acute abdominal pain. Recent guidelines advise selective use of antibiotics in AUD patients. This meta-analysis aimed to compare the effectiveness of no antibiotics vs antibiotics in AUD patients. This review was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses to identify randomized controlled trials (RCTs) involving AUD patients which compared the use of antibiotics with no antibiotics. Pooled outcome data was calculated using random effects modeling with 95% confidence intervals (CIs). 5 RCTs with 1934 AUD patients were included. 979 patients were managed without antibiotics (50.6%). Patients in the no antibiotic and antibiotic groups had comparable demographics (age, sex, and body mass index) and presenting features (temperature, pain score, and C-reactive protein levels). There was no significant difference in rates of complicated diverticulitis (OR: .61, 95% CI: 0.27-1.36, P = .23), abscess (OR: .51, 95% CI: .08-3.25, P = .47) or fistula (OR: .33, 95% CI: .03-3.15, P = .33) formation, perforation (OR: .98, 95% CI: .32-3.07, P = .98), recurrence (OR: .96, 95% CI: .66-1.41, P = .85), need for surgery (OR: 1.36, 95% CI: .47-3.95, P = .37), mortality (OR: 1.27, 95% CI: .14-11.76, P = .82), or length of stay (MD: .215, 95% CI: -.43-.73, P = .61) between the 2 groups. However, the likelihood of readmission was higher in the antibiotics group (OR: 2.13, 95% CI: 1.43-3.18, P = .0002). There is no significant difference in baseline characteristics, clinical presentation, and adverse health outcomes between AUD patients treated without antibiotics compared to with antibiotics.

Is reassessment of Computed Tomography Reports Worthwhile in Acute Diverticulitis?

Introduction: Since the assessment of the disease severity in acute diverticulitis (AD) is of utmost importance to determine the optimal treatment and the need for follow-up investigations, we wanted to investigate whether the first CT report is compatible with daytime reassessment report and whether the value of initial report changes according to the experience of the radiologist. Methods: Consecutive patients from tertiary referral centre with AD were included. CT images done in the emergency department were initially analysed by either resident radiologists or consultant radiologists and then later reanalysed by consultant abdominal radiologists. Discrepancies between reports were noted. Results: Of total of 562 patients with AD, CT images were reanalysed in 439 cases. In 22 reports (5.0%) the final report was significantly different from the initial report and management changed in 20 cases. In reports of uncomplicated acute diverticulitis, reanalysis changed initial assessment in 4.0% of the cases and in complicated acute diverticulitis (CAD) in 9.1%. When consultant and resident radiologists were compared, there was no significant difference. Conclusion: Although no statistical difference could be noted between residents and consultants, the final report was significantly different in overall 5% of the cases when reanalysed at normal working hours by an experienced consultant abdominal radiologist. Therefore, we conclude that reassessment of CT reports is worthwhile in AD.

Diverticulitis: A Review of Current and Emerging Practice-Changing Evidence

AbstractAcute diverticulitis represents a common colorectal emergency seen in the Western world. Over time, management of this condition has evolved. This review aims to highlight recent evidence and update current recommendations. Notable evidence has emerged in certain aspects of diverticulitis. This includes disease pathogenesis, as emerging data suggest a potentially greater role for the microbiome and genetic predisposition than previously thought. Acute management has also seen major shifts, where traditional antibiotic treatment may no longer be necessary for acute uncomplicated diverticulitis. Following successful medical management of acute diverticulitis, indications for elective sigmoidectomy have decreased. The benefit of emergency surgery remains for peritonitis, sepsis, obstruction, and acute diverticulitis in certain immunocompromised patients. Routine colonoscopy, once recommended after all acute diverticulitis episodes, has been shown to be beneficial for cancer exclusion in a distinct patient population. Despite advances in research, certain entities remain poorly understood, such as smoldering diverticulitis and symptomatic uncomplicated diverticular disease. As research in the field expands, paradigm shifts will shape our understanding of diverticulitis, influencing how clinicians approach management and educate patients.

Classification of Diverticular Disease (CDD) - assessment of the intra-and interobserver agreement in abdominal CT scans.

Along with ultrasound, computed tomography (CT) is one of the imaging modalities of choice in patients with suspected diverticular disease (DD). Recently, a newer Classification of Diverticular Disease (CDD) has been proposed. However, its reliability in daily radiological practice has never been proven. Therefore, our aim was to evaluate the intra- and interobserver agreement of the CDD in abdominal CT scans. In this retrospective study, 481 CT scans of patients with suspected DD were included. Two readers (one board-certified radiologist with 6 years of experience, one 3 rd year radiology resident) individually evaluated all CTs in two reading sessions using the CDD. A composite endpoint of a prior consensus reading, follow-up, and intraoperative findings served as the reference. Intra- and interobserver agreement were calculated using Cohen-k statistic. DD was present in 317 cases (66 %), mostly classified as CDD stage 0, 1b, and 2a (28 %, 30 %, und 14 %). Intraobserver agreement was almost perfect for both readers (kappa 0.93 and 0.88). Interobserver agreement was high and improved from substantial (kappa 0.77) in the first reading session to almost perfect (kappa 0.84) in the second reading session. The interobserver agreement was best for CDD types 0 (diverticulosis) and 2c (free perforated diverticulitis) (mean kappa 0.83 and 0.86) and poorest for CDD types 1a (diverticulitis without phlegmon) and 2b (covered diverticulitis with macroabscess) (mean kappa 0.17 and 0.38). Intra- and interobserver agreement of acute uncomplicated (CDD type 1) and acute complicated diverticulitis (CDD type 2) were substantial to almost perfect (mean kappa 0.63-0.86). Agreement with the reference was almost perfect for both observers (mean kappa 0.86 and 0.82). Administration of rectal contrast did not significantly improve the diagnosis. The CDD is a classification based on relatively clear imaging characteristics, which can be readily applied by radiologists with different expertise. In our study, the CDD had a high intra- and interobserver agreement, enabling a reliable therapy-related categorization of DD. · The Classification of Diverticular Disease (CDD) is an easy-to-use classification for diverticular disease based on relatively clear image features.. · The CDD can be applied equally by radiologists with different levels of experience in the clinical routine.. · The high intra- and interobserver agreement indicates high reliability in the therapy-relevant classification of diverticulitis on CT.. · Schmidbauer M, Levers A, Wacker FK et al. Classification of Diverticular Disease (CDD) - assessment of the intra- and interobserver agreement in abdominal CT scans. Fortschr Röntgenstr 2024; 196: 591 - 599.

Risk Factors Associated with Postoperative Outcomes in Diverticular Disease Undergoing Elective Colectomy—A Retrospective Cohort Study from the ACS-NSQIP Database

Recommendations for elective colectomies after recovery from uncomplicated acute diverticulitis should be individualized. The kinds of associated risk factors that should be considered for this approach remain undetermined. The aim of this study was to identify the risk factors associated with postoperative outcomes in patients with diverticular disease after receiving an elective colectomy. This is a retrospective study using the multi-institutional, nationally validated database of the American College of Surgeons-National Surgical Quality Improvement Program (ACS-NSQIP). The patients who were diagnosed with diverticular disease and received an elective colectomy were included in our risk factor analyses. Postoperative mortality, morbidity, and overall complications were measured. Univariate and multivariate analyses were used to demonstrate the risk factors. We analyzed 30,468 patients with diverticular disease, 67% of whom received an elective colectomy. The rate of 30-day mortality was 0.2%, and superficial surgical site infection was the most common postoperative morbidity (7.2%) in the elective colectomies. The independent risk factors associated with overall complications were age ≥ 75, BMI ≥ 30, smoking status, dyspnea, hypertension, current kidney dialysis, chronic steroid use, ASA III, and open colectomy. In laparoscopic colectomy, 67.5% of the elective colectomies, the associated risk factors associated with overall complications still included age ≥ 75, smoking, hypertension, chronic steroid use, and ASA III. Identification of patient-specific risk factors may inform the decision-making process for elective colectomy and reduce the postoperative complications after mitigation of those risk factors.

Evaluation of physicians' current practices and awareness regarding the treatment of acute uncomplicated diverticulitis: results of a provincial survey.

International guidelines now recommend nonantibiotic treatment of uncomplicated diverticulitis. We assessed physicians' current management strategies for uncomplicated diverticulitis, their awareness of the updated recommendations, and barriers to practice change. A 21-question web-based survey conducted between 09/2022 and 11/2022 was sent to participants through their respective Quebec provincial associations or working groups. Participants included general surgeons, emergency physicians, gastroenterologists and general practitioners. Physicians who did not treat diverticulitis were excluded. The main outcomes were awareness of guideline recommendations on uncomplicated diverticulitis treatment, the use of nonantibiotic management for uncomplicated diverticulitis and identification of perceived barriers to practice change. The participation rate was 15.9%. The 465 participants consisted primarily of general practitioners (41.7%), general surgeons (29.2%) and emergency physicians (17.8%). Eighty-two percent had heard of the nonantibiotic treatment strategy for uncomplicated diverticulitis; 7.5% were "uncomfortable" and 44.6% "somewhat uncomfortable" with this practice. A third (31.8%) of all physicians had no knowledge of the updated guidelines on uncomplicated diverticulitis treatment. Most reported "never" (41.6%) or "rarely" (25.1%) omitting antibiotics for uncomplicated diverticulitis. When informed about nonantibiotic treatment, 28.7% and 51.4% of all physicians, respectively, indicated that this "will" change or "may" change their practice. Common perceived barriers to nonantibiotic treatment were concerns about treatment failure (69.6%), unawareness of updated recommendations (67.0%), difficulty in ensuring proper follow-up (59.0%) and workplace culture (54.9%). Physicians' awareness of practice guidelines recommending nonantibiotic treatment for uncomplicated diverticulitis and their application are suboptimal. Knowledge transfer activities, educational interventions and optimization of local protocols are needed to ensure the rational use of antibiotics.

Effectiveness of Antibiotics for Uncomplicated Diverticulitis: A Retrospective Investigation Using a Nationwide Database in Japan

Introduction: The efficacy of antibiotics for diverticulitis without abscess or peritonitis (uncomplicated diverticulitis) is controversial. We aimed to investigate the effectiveness of antibiotics for uncomplicated diverticulitis. Methods: We collected admission data for patients with acute uncomplicated diverticulitis using a nationwide database. We divided eligible admissions into two groups according to antibiotic initiation within 2 days after admission (antibiotic group vs. nonantibiotic group). We conducted propensity score matching and compared the rates of surgery (intestinal resection and stoma creation), in-hospital death, and medical costs between the groups. We also performed multivariate analysis to identify the clinical factors that affect surgery. Results: We enrolled 131,936 admissions; among these, we obtained 6,061 pairs after propensity score matching. Rates of both intestinal resection and stoma creation in the antibiotic group were lower than those in the nonantibiotic group (0.61 vs. 3.09%, p < 0.0001, and 0.08 vs. 0.26%, p = 0.027, respectively). Median costs in the antibiotic group were higher than those in the nonantibiotic group (315,820 JPY vs. 300,175 JPY, p < 0.0001, respectively). Multivariate analysis showed that non-initiation of antibiotics within 2 days after admission was a clinical factor that increased the risk of intestinal resection (odds ratio [OR] = 5.19, 95% confidence interval [CI]: 4.38–6.16, p < 0.0001) and stoma creation (OR = 2.68, 95% CI: 1.53–4.70, p = 0.0006). Conclusion: Our results indicated that antibiotics for uncomplicated diverticulitis expected to have moderate to severe disease activity may reduce the risk of intestinal resection and stoma creation. Further investigations are warranted.

Hemogram-Derived Ratios in the Prognosis of Acute Diverticulitis.

Background and Objectives: It is crucial to quickly identify those patients who need immediate treatment in order to avoid the various complications related to acute diverticulitis (AD). Although several studies evaluated the neutrophil-to-lymphocyte ratio (NLR) suggesting its predictive value in assessing the severity of AD, results have been inconclusive. Therefore, we aimed to assess the relationship between the neutrophil-to-lymphocyte ratio (NLR), the platelet-to-lymphocyte ratio (PLR), the monocyte-to-lymphocyte ratio (MLR), and systemic immune inflammation (SII) with the severity of AD, the ability to predict the presence or absence of complications, and the recurrence rate, based on the values of inflammatory markers. Materials and Methods: We retrospectively reviewed 147 patients diagnosed with AD between January 2012 to February 2023. Patients were divided into 2 groups, uncomplicated and complicated AD. The characteristics and full blood count between both groups were compared. Results: A total of 65 (44.22%) patients were classified as having complicated AD. The area under the ROC curve (AUROC) defining a Hinchey score ≥ 1b was as follows: SII, 0.812 (95% confidence interval (CI), 0.73 -0.888); NLR, 0.773 (95% CI, 0.676-0.857); PLR, 0.725 (95% CI, 0.63-0.813); MLR: 0.665 (95% CI, 0.542 -0.777). An SII cutoff value of > 1200 marked the highest yield for diagnosing complicated AD, with a sensitivity of 82% and a specificity of 76%. The cumulative recurrence rate was not significantly different in the groups of SII ≥ median vs. SII < median (p = 0.35), NLR ≥ median vs. NLR < median (p = 0.347), PLR ≥ median vs. PLR < median (p = 0.597), and MLR ≥ median vs. MLR < median (p = 0.651). Conclusions: Our study indicates that SII, NLR, and PLR are statistically significant and clinically useful classifying ratios to predict higher Hinchey scores. However, they cannot predict recurrences.

WTP4.7 Evidence-Based care for Acute Uncomplicated Colonic Diverticulitis. Effects on Bed Occupancy, Broad Spectrum Antibiotic Therapy and Cost savings

Abstract Aims To investigate the impact of failure to adhere to best-practice guidelines in the management of acute uncomplicated colonic diverticulitis on use of hospital resources. Methods Retrospective study from January 2019 till December 2021. The clinical pathway, including disposal (admission vs discharge), imaging, time course, illness severity, treatment and outcome of all adult patients (18 years and older) attending as an emergency with acute colonic diverticulitis were identified from ICD-10 coding data. All radiology reports were reviewed and a modified Hinchey classification of disease severity recorded. Results 339 patients were identified during the study period. 79 were excluded because of incorrect coding. In 260 cases (222 patients) median (range) age 56 (23-92) years, the diagnosis was confirmed by CT scan in 247 (95%). Of these, 174 (67%) had uncomplicated (Hinchey 1a) acute colonic diverticulitis. 235 (90%) of all attendances resulted in an acute hospital admission. However, 149/174 (86%) of all patients with Hinchey 1a disease were admitted to hospital and 142 of these (95.3%) were treated with broad spectrum IV antibiotics, despite evidence-based guidance indicating that this treatment is unnecessary. 605/1268 (48%) of all bed days for the management of acute diverticulitis over the study period were used to treat patients with Hinchey 1a disease. Conclusion Almost half of all patients admitted with acute diverticulitis could have been managed on ambulatory pathways without antibiotics. Adherence to evidence-based guidance and development of appropriate patient pathways provide an opportunity for considerable improvements in efficient use of hospital resources and improved antibiotic stewardship.

138 Overview of the management of acute uncomplicated diverticulitis in a District General Hospital

Abstract Aims Acute diverticulitis is a condition where diverticula, which is the outpouching of the large intestinal mucosa; becomes inflamed or infected. We took recommendations from ACPGBI, WSES and NICE guidelines on the management of acute uncomplicated diverticulitis and compared our practice with them in a district general hospital. Methods Retrospective data collection of 50 consecutive patients presented to A&amp;E with CT-proven acute uncomplicated diverticulitis was performed. Data included demographic distribution, clinical, laboratory and radiological features on presentation, treatment history and follow-up plans. Results All 30 patients being admitted with antibiotics, had modified Hinchey type 1a or 1b diverticulitis. However, 12 of these patients were over the age of 65 and another four had CRP &amp;gt;150. In the discharged group, all 20 patients had type 1a or 1b diverticulitis and almost all were discharged with antibiotics. However, 2 of these patients had CRP &amp;gt;150 and another five of them were over the age of 65. A request for the endoscopic procedure was placed for all 50 patients however 36 of them are still on the waiting list. Almost half of these patients were discharged without any written advice on discharge about the diverticular disease. Conclusions After analysing the data, more than half of these admitted patients could have been managed in ambulatory care without antibiotics. Conservatively managed diverticulitis patient doesn’t need routine endoscopic evaluation. All patients should have written advice given about their condition. We are in the process of making a pathway to ensure safe and cost-effective management for patients with acute diverticulitis.

ThTP7.3 Do patients receive written information? An overview of the management of acute uncomplicated diverticulitis

Abstract Background The management of acute uncomplicated diverticulitis was audited in compliance with NICE, the World of Society of Emergency Surgery and the Association of Coloproctology of Great Britain and Ireland guidelines. Included was the advice for appropriate written information. The initial cycle found no consistency in written advice if given at all. This audit analysed the compliance of providing written information to patients with acute diverticulitis. Following the initial cycle identifying significant discrepancies between patients, a secondary aim was formed to publish a standardised patient information leaflet. Method 50 consecutive patients presenting to A&amp;E with CT-proven uncomplicated acute diverticulitis were included. If any, advice on discharge was assessed for topics and consistency. Other factors were considered including if discharged directly from A&amp;E or antibiotic administration. Results The mean age of patients was 58.4 years. 30 patients were admitted, 20 were discharged from A&amp;E. 41 patients received antibiotics. All patients were Modified Hinchey Classification 1a or 1b. 21 patients had no documented written advice on discharge. Most commonly, the advice given was to seek medical attention or return to hospital if increasingly unwell (eight) or dietary advice while in acute infection (12). Conclusion Almost half of patients had no written advice and there was no consistency in the other half. A standardised approach was required hence the need for the patient information leaflet to be created. This includes all topics recommended by guidelines and ensures no information is missed for patients. The leaflet is now published.

Diagnosis and management of acute colonic diverticulitis: results of a survey among Korean gastroenterologists.

Some management strategies for acute colonic diverticulitis remain controversial in Korean real-world practice because their clinical features differ from those in the West. This study aimed to investigate the opinions of Korean physicians regarding the diagnosis and treatment of acute diverticulitis. A web-based survey was conducted among gastroenterologists specializing on treating lower gastrointestinal disorders. The questionnaires concerned overall management strategies for colonic diverticulitis, including diagnosis, treatment, and follow-up. In total, 209 gastroenterologists responded to the survey. Less than one-fourth of the respondents (23.6%) answered that left-sided colonic diverticulitis is more likely to be complicated than right-sided colonic diverticulitis. Most respondents agreed that immunocompromised patients with diverticulitis have worse clinical outcomes than immunocompetent patients (71.3%). Computed tomography was the most preferred tool for diagnosing diverticulitis (93.9%). Approximately 89% of the respondents answered that they believed antibiotic treatment is necessary to treat acute uncomplicated diverticulitis. Most respondents (92.6%) agreed that emergency surgery is not required for diverticulitis with an abscess or microperforation without panperitonitis. Further, 94.7% of the respondents agreed that colon cancer screening is necessary in patients aged ≥ 50 years with diverticulitis after they have recovered from acute illness. Many respondents (71.4%) agreed that surgery for recurrent diverticulitis should be individualized. Opinions regarding management strategies for colonic diverticulitis among Korean gastroenterologists were well agreed upon in some areas but did not agree well in other areas. Evidence-based guidelines that meet the practical needs of the Korean population should be developed.

Efficacy of antimicrobial therapy in patients with uncomplicated acute colonic diverticulitis: an updated systematic review and meta-analysis.

The need for antimicrobial therapy for uncomplicated acute diverticulitis of the colon remains controversial. We conducted a systematic review of the efficacy of antimicrobial agents against this disease, including new randomized controlled trials (RCTs) reported in recent years, and evaluated their efficacy using a meta-analytic approach. RCTs were searched using PubMed, EMBASE, Google Scholar, Cochrane Library, Ichushi-Web, and eight registries. Keywords were 'colonic diverticulitis', 'diverticulitis', 'antimicrobial agents', ''antibiotics, 'complication', 'abscess', 'gastrointestinal perforation', 'gastrointestinal obstruction', 'diverticular hemorrhage', and 'fistula'. Studies with antimicrobial treatment in the intervention group and placebo or no treatment in the control group were selected by multiple reviewers using uniform inclusion criteria, and data were extracted. Prevention of any complication was assessed as the primary outcome, and efficacy was expressed as risk ratio (RR) and risk difference (RD). A meta-analysis was performed using 5 RCTs of the 21 studies that were eligible for scrutiny in the initial search and which qualified for final inclusion. Three of these studies were not included in the previous meta-analysis. Subjects included 1039 in the intervention group and 1040 in the control group. Pooled RR = 0.86 (95% confidence interval, 0.58-1.28) and pooled RD = -0.01 (-0.03 to 0.01) for the effect of antimicrobial agents in reducing any complications. Recurrences, readmissions, and surgical interventions did not significantly show the efficacies of using antimicrobial agents. A meta-analysis of recently reported RCTs did not provide evidence that antimicrobial therapy improves clinical outcomes in uncomplicated acute diverticulitis of the colon.

Risk for colorectal cancer after computed tomography verified acute diverticulitis: A retrospective cohort study with long-term follow-up.

Colorectal cancer (CRC) can mimic acute diverticulitis and can thus be misdiagnosed. Therefore, colonic evaluation is recommended after an episode of acute diverticulitis. The aim of this study was to analyze the risk of CRC after computed tomography (CT) verified uncomplicated and complicated acute diverticulitis in short-term and, particularly, long-term follow-up to ensure the feasibility of the primary CT imaging in separating patients with uncomplicated and complicated acute diverticulitis. A retrospective cohort study was conducted in patients with CT-verified acute diverticulitis in 2003-2012. Data on CT findings and colonic evaluations were analyzed. The patients were divided into those with uncomplicated and complicated acute diverticulitis. Patient charts were reviewed 9-18 years after the initial acute diverticulitis episode. The study population consisted of 270 patients. According to CT scans, 170 (63%) patients had uncomplicated acute diverticulitis and 100 (37%) had complicated acute diverticulitis. Further colonic evaluation was made in 146 (54%) patients. In the whole study population, CRC was found in 7 (2.6%) patients, but CRC was associated with acute diverticulitis in only 4 (1.5%) patients. The short-term risk for CRC was 0.6% (1/170) in uncomplicated acute diverticulitis and 3.0% (3/100) in complicated acute diverticulitis. No additional CRC was found in patients with complicated acute diverticulitis during the long-term follow-up and three cases of CRC found after uncomplicated acute diverticulitis had no observable association with previous diverticulitis. In short-term follow-up, the risk of underlying CRC is very low in CT-verified uncomplicated acute diverticulitis but increased in complicated acute diverticulitis. Long-term follow-up revealed no additional CRCs associated with previous acute diverticulitis, indicating that the short-term results remain consistent also in the long run. These long-term results confirm that colonoscopy should be reserved for patients with complicated acute diverticulitis or with persisting or alarming symptoms.