Recurrent Diverticulitis in a Neutropenic Patient: A Case Report

Background: Neutropenic patients are at an increased risk of infections. These infections can originate from several sites including the respiratory, urinary or gastrointestinal systems. Diverticulitis is one such infection, that carries a high morbidity and mortality risk in such patients. The management remains controversial and involves deciding between a conservative medical approach and surgical intervention. Regardless, these patients should be closely monitored due to a high risk of developing complications including septic shock. Case Report: In this article, we discuss the case of a patient with acute myeloid leukemia (AML) presenting with neutropenic fever and found to have a recurrent episode of diverticulitis. The patient was quickly managed with medical therapy, and surgery was therefore deferred. Conclusion: In conclusion, physicians should always maintain diverticulitis as a differential diagnosis in neutropenic patients who present with abdominal pain, especially in those who have had a previous episode. This allows for rapid and more efficient management.

Role of Dietary Habits in the Prevention of Diverticular Disease Complications: A Systematic Review

Recent evidence showed that dietary habits play a role as risk factors for the development of diverticular complications. This systematic review aims to assess the effect of dietary habits in the prevention of diverticula complications (i.e., acute diverticulitis and diverticula bleeding) in patients with diverticula disease. PubMed and Scopus databases were searched up to 19 January 2021, 330 records were identified, and 8 articles met the eligibility criteria and were subjected to data extraction. The quality of the studies was evaluated by the Newcastle-Ottawa quality assessment form. No study meets the criteria for being a high-quality study. A high intake of fiber was associated to a decreased risk of diverticulitis or hospitalization due to diverticular disease, with a protective effect for fruits and cereal fiber, but not for vegetable fiber; whereas, a high red meat consumption and a generally Western dietary pattern were associated with an increased risk of diverticulitis. Alcohol use seemed to be associated to diverticular bleeding, but not to recurrent diverticulitis or diverticular complications. Further high-quality studies are needed to better define these associations. It is mandatory to ascertain the role of dietary habits for the development of recurrent acute diverticulitis and diverticular bleeding.

Management of colonic diverticulitis

ABSTRACT Left sided colonic diverticulitis is a common and costly gastrointestinal disease in Western countries, characterized by acute onset of often severe abdominal pain. Imaging is necessary to make an initial diagnosis and determine disease severity. Colonoscopy should be done six to eight weeks after diagnosis to rule out a missed colon malignancy. Antibiotic treatment is used selectively in immunocompetent patients with mild acute uncomplicated diverticulitis. The clinical course of diverticulitis commonly includes unpredictable recurrences and chronic gastrointestinal symptoms, which are a detriment to quality of life. A better understanding of prognosis has prompted a shift toward non-operative approaches. The decision to undergo prophylactic colon resection should be individualized to consider the severity of diverticulitis, the patient’s health and immune status, and the patient’s preferences and values, as well as benefits and risks. Because only a section of colon is removed, recurrent diverticulitis remains a risk. Acute diverticulitis with an abscess is treated with antibiotics that cover Gram negative and anaerobic bacteria, with or without percutaneous drainage. Acute diverticulitis with purulent or feculent contamination of the peritoneal cavity is managed with surgery; primary resection and anastomosis is the procedure of choice in stable patients.

Management of acute colonic diverticulitis in the general and surgical emergency departments

Acute left colonic diverticulitis is a very common disease that primarily affects the older population in the Western world. The pathogenesis of acute inflammation of the diverticula may not be as simple as once thought, and the disease cascade could involve a combination of chronic inflammation and altered gut microbiota. Several lifestyle risk factors such as obesity, low-fibre diet, smoking, use of non-steroid anti-inflammatory drugs, inadequate physical activity and others have been associated with a higher risk for diverticulitis. It has been proven that uncomplicated diverticulitis in immunocompetent patients without systemic signs of infection can be treated symptomatically. Outpatient treatment with peroral antibiotics is effective for managing patients with uncomplicated diverticulitis and signs of systemic inflammation. New, less- invasive surgical options have been recognised as appropriate for a select group of patients with complicated diverticulitis. Laparoscopic lavage and drainage are suitable for abscesses where the bowel wall is intact. Resection with primary anastomosis with or without ileostomy is now considered an option for some patients that would historically have to undergo Hartmann’s procedure. The latter still remains the most common operating option even in tertiary referral centres around the world as it is suitable for more complicated cases and critically ill patients. Current evidence does not support routine colonoscopic evaluation for uncomplicated diverticulitis in younger patients without risk factors. Recurrent diverticulitis is now understood to be more benign than was previously thought. Elective resection of the sigmoid colon is therefore no longer a standard treatment for all patients with two or more episodes of acute diverticulitis.

Segmental Diffuse Inflammatory Pseudopolyps Associated With Diverticulitis

Introduction/Objective Inflammatory pseudopolyps (IPs) often develop in response to chronic active inflammation in patients with inflammatory bowel disease (IBD). IPs can be diffuse and numerous in severe IBD. IPs can also occur from other chronic active injuries, such as ulcers, persistent infection, ischemic colitis, anastomotic site and diverticulitis. IPs arising from diverticulitis is uncommon and generally few in numbers. We report a rare case of a patient with segmental diffuse IPs associated with diverticulitis in the absence of IBD. Methods A 59-year-old male patient with a history of sigmoid diverticulitis presented with abdominal pain and was treated with antibiotics. Three months later he had severe recurrent diverticulitis. CT scan showed wall thickening of the sigmoid colon and multiple sigmoid diverticula. Colonoscopy showed extremely severe inflammatory colitis in the area of diverticulitis between 25.0 and 35.0 cm from the anal verge. Biopsies revealed cryptitis, crypt abscesses, crypt architecture distortion and Paneth cell metaplasia. The patient underwent laparoscopic left colectomy. Results The rectosigmoid colon specimen is 18.0 cm in length and 6.0 cm in diameter. There was a 7.5 cm segment with numerous polyps. Multiple diverticula with diverticulitis were also identified in this region. The rest of the colon was unremarkable. Microscopic examination revealed numerous IPs and multiple diverticulitis. No evidence of IBD was identified. Conclusion To our knowledge, this is the first time that segmental and diffuse IPs are described with associated diverticulitis in the absence of IBD. The pathogenesis of IPs in non-inflammatory bowel disease is not well described. Previously, it was reported that diverticulosis and subsequent diverticulitis has no significant impact on the development of IPs, and IPs may arise independent of location and time of diverticulitis. Sporadic IPs may also appear without any underlying pathology. In the current case, there were multiple diverticula and diffuse diverticulitis, which may have contributed to the diffuse IPs. Further clinical inquiries revealed no clinical signs and symptoms of IBD.

Surgical resection does not avoid the risk of diverticulitis recurrence—a systematic review of risk factors

Purpose Fifteen percent of patients undergoing elective sigmoidectomy will present a diverticulitis recurrence, which is associated with significant costs and morbidity. We aimed to systematically review the risk factors associated with recurrence after elective sigmoidectomy. Methods PubMed/MEDLINE, Embase, Cochrane, and Web of Science were searched for studies published until May 1, 2020. Original studies were included if (i) they included patients undergoing sigmoidectomy for diverticular disease, (ii) they reported postoperative recurrent diverticulitis, and (iii) they analyzed ≥ 1 variable associated with recurrence. The primary outcome was the risk factors for recurrence of diverticulitis after sigmoidectomy. Results From the 1463 studies initially screened, six studies were included. From the 1062 patients included, 62 patients recurred (5.8%), and six variables were associated with recurrence. Two were preoperative: age (HR = 0.96, p = 0.02) and irritable bowel syndrome (33.3% with recurrence versus 12.1% without recurrence, p = 0.02). Two were operative factors: uncomplicated recurrent diverticulitis as indication for surgery (73.3% with recurrence versus 49.9% without recurrence, p = 0.049) and anastomotic level (colorectal: HR = 11.4, p = 0.02, or colosigmoid: OR = 4, p = 0.033). Two were postoperative variables: the absence of active diverticulitis on pathology (39.6% with recurrence versus 26.6% without recurrence) and persistence of postoperative pain (HR = 4.8, p < 0.01). Conclusion Identification of preoperative variables that predict the occurrence of diverticulitis recurrence should help surgical decision-making for elective sigmoidectomy, while peri- and postoperative factors should be taken into account for optimal patient follow-up.

Non-Surgical Treatment of Colonic Diverticulitis (a Review)

Colonic diverticulitis poses an adverse medical and social problem for its prevalence, variety of clinical manifestations and complications and is becoming menacing as the people’s life expectancy reaches beyond 80 years. Many of the traditional principles no longer apply. This situation warrants an earlier diagnosis of colonic diverticulitis, its adequate treatment and prevention. The article presents a review of current literature on the conservative treatment of inflammatory colonic diverticulitis. The past 20 years have witnessed a noticeable increase to 20 % of hospitalisation rate with complicated diverticulitis and a higher associated financial burden. We discuss issues in the diagnosis and criteria for diverticulitis severity assessment with laboratory, biochemical data and radiation imaging (computer tomography, magnetic resonance imaging, ultrasound, colonoscopy). A critical overview is provided on anti-inflammatory and antibiotic drug usage in recurrence prevention and treatment of acute and recurrent diverticulitis, aside to recommendations in outpatient care. Despite a manifold of clinical studies and guidelines available, the adequate choice of drugs, dosages and duration of treatment remains an open challenge.

Management and Outcomes of Diverticulitis After Lung Transplantation

Introduction: Most lung transplant patients are older than 50 years. Complications from colonic diverticula are not uncommon, especially with chronic immunosuppression. However, limited data exist regarding the optimal management of these patients. We sought to investigate the incidence, risk factors, and outcomes of diverticulitis after lung transplant. Methods: We conducted a retrospective study to review patients undergoing lung transplant between 2007 and 2016 with posttransplant acute colonic diverticulitis. Patients were grouped based on medical or surgical management. Results: Of 512 transplant recipients, 17 (3.32%) developed 26 episodes of diverticulitis over a median follow-up of 39 months. Nine patients had documented diverticulosis on pretransplant colonoscopy. These patients had a higher incidence of surgical intervention for diverticulitis, were more likely to have recurrent diverticulitis, and had longer lengths of stay than patients without pretransplant diverticulosis. Six (35.3%) of 17 patients required surgery (ie, Hartmann procedure; 4 during the initial episode and 2 during their third and fourth episodes); 11 patients (64.7%) were managed with antibiotics alone. Patients in the surgical group presented earlier posttransplant ( P = .004) and were on higher doses of tacrolimus ( P = .03). Six (46.1%) of 13 patients with medically managed first episodes of diverticulitis experienced recurrence. No recurrence occurred after surgical management. No deaths were attributable to diverticulitis in either group. Conclusions: Patients with pretransplant diverticulosis experienced earlier, more complicated episodes of diverticulitis posttransplant than patients without. Surgical patients received higher doses of tacrolimus and presented earlier than medical patients. Uncomplicated diverticulitis in posttransplant patients can be managed medically, even in the case of recurrent, uncomplicated disease.