OBJECTIVE: Robotic assisted surgery is an alternative, fast evolving technique for performing colorectal surgery. The primary aim of this single center analysis is to compare elective laparoscopic and robotic sigmoid colectomies for diverticular disease on the extent of operative trauma and the costs.
METHODS: Retrospective analysis from our prospective clinical database to identify all consecutive patients aged ≥ 18 years who underwent elective minimally invasive left sided colectomy for diverticular disease from January 2016 until December 2020 at our tertiary referral institution.
RESULTS: In total, 83 patients (31 female and 52 male) with sigmoid diverticulitis underwent elective minimally invasive sigmoid colectomy, of which 42 underwent conventional laparoscopic surgery (LS) and 41 robotic assisted surgery (RS). The mean C-reactive protein difference between the preoperative and postoperative value was significantly lower in the robotic assisted group (4,03 mg/dL) than in the laparoscopic group (7.32 mg/dL) (p = 0.030). Similarly, the robotic´s hemoglobin difference was significantly lower (p = 0.039). The first postoperative bowel movement in the LS group occurred after a mean of 2.19 days, later than after a mean of 1.63 days in the RS group (p = 0.011). An overview of overall charge revealed significantly lower total costs per operation and postoperative hospital stay for the robotic approach, 6058 € vs. 6142 € (p = 0,014) not including the acquisition and maintenance costs for both systems.
CONCLUSIONS: Robotic colon resection for diverticular disease is cost-effective and delivers reduced intraoperative trauma with significantly lower postoperative C-reactive protein and hemoglobin drift compared to conventional laparoscopy.

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Diverticular disease is a major cause of hospitalizations, especially in the elderly. Although diverticulosis and its complications predominately affect the colon, the formation of diverticula in the small intestine, most commonly in the duodenum, is well characterized in the literature. Although small bowel diverticula are typically asymptomatic, and diagnosed incidentally, a complication of periampullary duodenal diverticulum is Lemmel syndrome. Lemmel syndrome is an extremely rare condition whereby periampullary duodenal diverticula, most commonly without diverticulitis, leads to obstruction of the common bile duct due to mass effect and associated complications including acute cholangitis and pancreatitis. Here, we present the first case, to our knowledge, of periampullary duodenal diverticulitis complicated by Lemmel syndrome with concomitant colonic diverticulitis with colovesical fistula. Our case and literature review emphasizes that Lemmel syndrome can present with or without suggestions of obstructive jaundice and can most often be managed conservatively if caught early, except in the setting of emergent complications.

BACKGROUND: Laparoscopic lavage (LPL) has been suggested for treatment of non-feculent perforated diverticulitis. In this observational study, the surgical treatment of diverticular disease in Sweden outside prospective trials was investigated.
METHODS: This population-based study used the National Patient Register to identify all patients in Sweden with emergency admissions for diverticular disease, as defined by ICD codes from July 2014 to December 2020. Demographics, surgical procedures and outcomes were assessed. In addition, register data since 1997 were retrieved to assess co-morbidities, previous abdominal surgeries, and previous admissions for diverticular disease.
RESULTS: Among 47 294 patients with emergency hospital admission, 2035 underwent LPL (427 patients) or sigmoid resection (SR, 1608 patients) for diverticular disease. The mean follow-up was 30.8 months. Patients selected for LPL were younger, healthier and with less previous abdominal surgery for diverticular disease than those in the SR group (P < 0.01). LPL was associated with shorter postoperative hospital stay (mean 9.4 versus 14.9 days, P < 0.001) and lower 30-day mortality (3.5% versus 8.7%, P < 0.001). Diverticular disease-associated subsequent surgery was more common in the SR group than the LPL group except during the first year (P < 0.001). LPL had a lower mortality rate during the study period (stratified HR 0.70, 95% c.i. 0.53-0.92, P = 0.023).
CONCLUSIONS: Laparoscopic lavage constitutes a safe alternative to sigmoid resection for selected patients judged clinically to require surgery.
Diverticulitis is inflammation in pouches of the large bowel. Rarely, diverticulitis can lead to a bowel perforation causing peritonitis. Traditionally, it was treated by resection of the inflamed bowel with a stoma. A milder treatment has been proposed in which the abdomen is rinsed with saline laparoscopically and drained (laparoscopic lavage). This study aimed to examine the outcomes of laparoscopic lavage in Sweden. Our findings support the use of this method in younger and healthier patients with a history of no or only minor previous abdominal surgery.

BACKGROUND: This multicentre case-control study aimed to identify risk factors associated with non-operative treatment failure for patients with CT scan Hinchey Ib-IIb and WSES Ib-IIa diverticular abscesses.
METHODS: This study included a cohort of adult patients experiencing their first episode of CT-diagnosed diverticular abscess, all of whom underwent initial non-operative treatment comprising either antibiotics alone or in combination with percutaneous drainage. The cohort was stratified based on the outcome of non-operative treatment, specifically identifying those who required emergency surgical intervention as cases of treatment failure. Multivariable logistic regression analysis to identify independent risk factors associated with the failure of non-operative treatment was employed.
RESULTS: Failure of conservative treatment occurred for 116 patients (27.04%). CT scan Hinchey classification IIb (aOR 2.54, 95%CI 1.61;4.01, P < 0.01), tobacco smoking (aOR 2.01, 95%CI 1.24;3.25, P < 0.01), and presence of air bubbles inside the abscess (aOR 1.59, 95%CI 1.00;2.52, P = 0.04) were independent predictors of failure. In the subgroup of patients with abscesses > 5 cm, percutaneous drainage was not associated with the risk of failure or success of the non-operative treatment (aOR 2.78, 95%CI - 0.66;3.70, P = 0.23).
CONCLUSIONS: Non-operative treatment is generally effective for diverticular abscesses. Tobacco smoking\'s role as an independent risk factor for treatment failure underscores the need for targeted behavioural interventions in diverticular disease management. IIb Hinchey diverticulitis patients, particularly young smokers, require vigilant monitoring due to increased risks of treatment failure and septic progression. Further research into the efficacy of image-guided percutaneous drainage should involve randomized, multicentre studies focussing on homogeneous patient groups.

BACKGROUND: Current guidelines recommend resection with primary anastomosis with diverting loop ileostomy over Hartmann\'s procedure if deemed safe for acute diverticulitis. The primary objective of the current study was to compare the utilization of these strategies and describe nationwide ostomy closure patterns and readmission outcomes within 1 year of discharge.
METHODS: This was a retrospective, population-based, cohort study of United States Hospitals reporting to the Nationwide Readmissions Database from January 2011 to December 2019. There were 35,774 patients identified undergoing non-elective primary anastomosis with diverting loop ileostomy or Hartmann\'s procedure for acute diverticulitis. Rates of ostomy closure, unplanned readmissions, and complications were compared. Cox proportional hazards and logistic regression models were used to control for patient and hospital-level confounders as well as severity of disease.
RESULTS: Of the 35,774 patients identified, 93.5% underwent Hartmann\'s procedure. Half (47.2%) were aged 46-65 years, 50.8% female, 41.2% publicly insured, and 91.7% underwent open surgery. Primary anastomosis was associated with higher rates of 1-year ostomy closure (83.6% vs. 53.4%, p < 0.001) and shorter time-to-closure [median 72 days (Interquartile range 49-103) vs. 115 (86-160); p < 0.001]. Primary anastomosis was associated with increased unplanned readmissions [Hazard Ratio = 2.83 (95% Confidence Interval 2.83-3.37); p < 0.001], but fewer complications upon stoma closure [Odds Ratio 0.51 (95% 0.42-0.63); p < 0.001]. There were no differences in complications between primary anastomosis and Hartmann\'s procedure during index admission [Odds Ratio = 1.13 (95% Confidence Interval 0.96-1.33); p = 0.137].
CONCLUSIONS: Patients who undergo primary anastomosis for acute diverticulitis are more likely to undergo ostomy reversal and experience fewer postoperative complications upon stoma reversal. These data support the current national guidelines that recommend primary anastomosis in appropriate cases of acute diverticulitis requiring operative treatment.

BACKGROUND: To 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.
METHODS: A 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.
RESULTS: The 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).
CONCLUSIONS: Observation-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.

OBJECTIVE: Understand the patient\'s decision-making process regarding colectomy for recurrent diverticulitis.
BACKGROUND: The decision to pursue elective colectomy for recurrent diverticulitis is highly preference-sensitive. Little is known about the patient\'s perspective in this decision-making process.
METHODS: We performed a qualitative study utilizing focus groups of patients with recurrent diverticulitis at 3 centers across the United States. Using an iterative inductive/deductive approach, we developed a conceptual framework to capture the major themes identified in the coded data.
RESULTS: From March 2019 to July 2020, 39 patients were enrolled across 3 sites and participated in 6 focus groups. After coding the transcripts using a hierarchical coding system, a conceptual framework was developed. Major themes identified included participants\' beliefs about surgery, such as normative beliefs (eg, subjective, value placed on surgery), control beliefs (eg, self-efficacy, stage of change), and anticipated outcomes (eg, expectations, anticipated regret); the role of behavioral management strategies (eg, fiber, eliminate bad habits); emotional experiences (eg, depression, embarrassment); current symptoms (eg, severity, timing); and quality of life (eg, cognitive load, psychosocial factors). Three sets of moderating factors influencing patient choice were identified: clinical history (eg, source of diagnosis, multiple surgeries), clinical protocols (eg, pre-op and post-op education), and provider-specific factors (eg, specialty, choice of surgeon).
CONCLUSIONS: Patients view the decision to undergo colectomy through 3 major themes: their beliefs about surgery, their psychosocial context, and moderating factors that influence participant choice to undergo surgery. This knowledge is essential both for clinicians counseling patients who are considering colectomy and for researchers studying the process to optimize care for recurrent diverticulitis.

Diverticulitis in a solitary transverse colon diverticulum is uncommon, with only a handful of cases documented in the literature. There are various clinical manifestations of the disease, which make clinical and radiological diagnosis rather challenging. Herein, we present a case of a premenopausal female patient in her late 40s who presented to the emergency department, complaining of right lower quadrant abdominal pain, nausea, anorexia and fever. Following clinical, biochemical and radiological tests, the patient was prepared for surgical operation, with the presumed diagnosis of acute appendicitis. An appendicectomy was planned via a McBurney incision. Notably, no inflammation of the appendix was discovered. However, on further exploration, an inflammatory mass was identified in the transverse colon, which was subsequently excised and sent for histological examination. The histology results confirmed the presence of a ruptured solitary transverse colon diverticulum, accompanied by an adjacent mesenteric abscess. The patient\'s postoperative recovery was uneventful.