• Acute right diverticulitis
• Acute sigmoid diverticulitis
• Colic resection
• Emergency surgery

• Humans
• Female
• Retrospective Studies
• Male
• France/epidemiology
• Middle Aged
• Aged
• Diverticulitis, Colonic/surgery
• Diverticulitis, Colonic/complications
• Diverticulitis, Colonic/mortality
• Sigmoid Diseases/surgery
• Sigmoid Diseases/mortality
• Treatment Outcome
• Acute Disease
• Emergencies
• Colic/surgery
• Colic/etiology
• Operative Time
• Adult
• Colon, Sigmoid/surgery
• Postoperative Complications/etiology
• Postoperative Complications/epidemiology
• Colectomy/methods
• Colectomy/statistics & numerical data
• Colectomy/adverse effects
• Anastomosis, Surgical/methods

• Humans
• Diverticulitis, Colonic/therapy
• Diverticulitis, Colonic/diagnosis
• Diverticulitis, Colonic/complications
• Acute Disease
• Anti-Bacterial Agents/therapeutic use

• antibiotics
• cecum
• conservative treatment
• diverticulitis
• right‐sided diverticulitis
• surgery

• Humans
• Male
• Female
• Adult
• Retrospective Studies
• Middle Aged
• Tunisia/epidemiology
• Colectomy/methods
• Acute Disease
• Aged
• Diverticulitis, Colonic/surgery
• Diverticulitis, Colonic/therapy
• Diverticulitis, Colonic/diagnosis
• Diverticulitis, Colonic/complications
• Treatment Outcome
• Young Adult
• North African People

• Colonic diverticulitis
• Diagnosis
• Disease management
• Surveys and Questionnaires

• Humans
• Diverticulitis, Colonic/diagnosis
• Diverticulitis, Colonic/therapy
• Gastroenterologists
• Diverticulitis
• Republic of Korea/epidemiology

• Abdominal
• Antibiotic
• Emergency
• Infections
• Mortality
• Source control
• Stewardship
• Surgery
• Trauma

• Female
• Humans
• Male
• Surgeons
• Abdominal Cavity
• Intraabdominal Infections

• Complications
• Recurrence
• Right-sided diverticulitis
• Treatment

Although the treatment guidelines for left sided diverticulitis are clear, the management of right colonic diverticulitis is not well established. This disease can no longer be ignored due to significant spread throughout Asia.

To analyse epidemiology, diagnosis and treatment of right-sided diverticulitis in western countries.

MEDLINE and PubMed searches were performed using the key words “right-sided diverticulitis’’, ‘‘right colon diverticulitis’’, ‘‘caecal diverticulitis’’, ‘‘ascending colon diverticulitis’’ and ‘‘caecum diverticula’’ in order to find relevant articles published until 2021.

A total of 18 studies with 422 patients were found. Correct diagnosis was made only in 32.2%, mostly intraoperatively or via CT scan. The main reason for misdiagnosis was a suspected acute appendicitis (56.8%). The treatment was a non-operative management (NOM) in 184 patients (43.6%) and surgical in 238 patients (56.4%), seven of which after NOM failure. Recurrence rate was low (5.45%), similar to eastern studies and inferior to left -sided diverticulitis. Recurrent patients were successfully conservatively retreated in most cases.

The management of right- sided diverticulitis is not well clarified in the western world and no selective guidelines have been considered even if principles are similar to those with left- sided diverticulitis. Wrong diagnosis is one of the most important problems and CT scan seems to be the best imaging modality. NOM offers a safe and effective treatment; surgery should be considered only in cases of complicated diverticulitis or if malignancy cannot be excluded. Further studies are needed to clarify the correct treatment.

• Right-sided diverticulitis
• Cecal diverticulitis
• Right colonic diverticulitis
• Western countries
• Emergency surgery
• Diverticulitis

• Intra-abdominal infections
• Peritonitis
• Sepsis

• Anti-Bacterial Agents/therapeutic use
• Anti-Infective Agents/therapeutic use
• Critical Pathways
• Humans
• Intraabdominal Infections/drug therapy
• Intraabdominal Infections/surgery
• Treatment Outcome

Routine colonoscopy is recommended to determine the coexistence of colon cancer after medical treatment for colon diverticulitis. However, in the case of uncomplicated diverticulitis diagnosed by computed tomography, the clinical relevance of routine follow-up colonoscopy has recently been debated. Yet, the role of follow-up colonoscopy for right colon diverticulitis, which tends to develop at a younger age than left colon diverticulitis, has not been specifically evaluated. Therefore, we aimed to evaluate the incidence of right colon cancer or colonic adenomatous polyps, detected by routine colonoscopy, after conservative management of acute uncomplicated right colon diverticulitis.

Patients with uncomplicated right colon diverticulitis (modified Hinchey stage Ia) diagnosed by computed tomography imaging, between 2011 and 2017, and who underwent follow-up colonoscopy surveillance after treatment were included. The primary outcome was the incidence of colon cancer, with the detection rate of adenoma being the secondary outcome. Information for analysis was retrieved retrospectively from patients’ medical records.

The study group included 330 consecutive patients, with a mean age of 41.9 years, and 51.9% being men. For the primary outcome, the rate of colon cancer on follow-up colonoscopy was 0.3% (1/330 cases). The rate of adenoma detection was 20.9% (69/330 cases) and advanced adenoma (> 10 mm in diameter; or exhibiting a > 25% villous component or severe dysplasia), including colon cancer, was observed in 9 patients (2.7%).

In patients with acute uncomplicated right colonic diverticulitis, routine colonoscopy after conservative treatment may be necessary because although the colon cancer detection rate is low, it is possible to detect advanced colon adenoma.

• Acute diverticulitis
• Colonic evaluation
• Colonic neoplasia
• Colonoscopy
• Diverticulitis
• Endoscopy

• diverticulitis
• giant diverticulum
• immunosuppression
• multifocal disease
• right-sided diverticulitis

• Colonic diverticulitis
• complications
• prognosis

• Emergency surgery
• Right colonic diverticulitis
• Surgical outcome

• Appendicitis
• Diverticulitis
• Diverticulitis, Colonic/surgery
• Humans
• Middle Aged
• Retrospective Studies
• Treatment Outcome

• Abscess
• Acute left-sided colonic diverticulitis
• Acute right-sided colonic diverticulitis
• Peritonitis

• Acute Disease
• Diverticulitis, Colonic/classification
• Diverticulitis, Colonic/surgery
• Emergency Service, Hospital
• Humans

Right colonic diverticulitis (RCD) and left colonic diverticulitis (LCD) may have different clinical features due to the different embryologic origins and anatomical locations of each colon. Therefore, we aimed to compare RCD and LCD in terms of the associated clinical features. We retrospectively collected clinical data from patients who were diagnosed with acute colonic diverticulitis based on computed tomography findings between 2011 and 2017. RCD was defined as colonic diverticulitis extending from the caecum to the transverse colon, and LCD was defined as extending from the splenic flexure to the sigmoid colon. These analyses included 667 patients with RCD and 58 patients with LCD. Relative to the patients with LCD, the patients with RCD were younger (P < 0.001), were more likely to be male (P = 0.033), were taller (P < 0.001), had lower body mass index values (P < 0.001), had less advanced modified Hinchey stages (P < 0.001), and had shorter hospital stays (P < 0.001). Having LCD rather than RCD was a predictor of recurrent colonic diverticulitis (P = 0.003). Relative to LCD, RCD occurs at younger ages, is expressed at less advanced modified Hinchey stages, and is associated with lower risks of recurrence.

• Antibiotics
• Conservative management
• Right-sided colonic diverticulitis

• Complicated right diverticulitis
• Conservative treatment
• Recurrence
• Surgery
• Uncomplicated right diverticulitis

• Acute diverticulitis
• Hinchey
• LPD
• Perforated diverticulitis
• RPD

The aim of this study is to determine the predictable factors that affect the clinical course, especially the hospital stay, the operation performed, and to determine factors that will be helpful in deciding whether in-hospital or outpatient treatment is appropriate.

We retrospectively collected medical data for patients who had been diagnosed with acute diverticulitis at Inje University Sanggye Paik Hospital between January and December 2016. In total, 117 patients were enrolled in this study. We examined clinical factors, including age, sex, body mass index, pain, body temperature, white blood cell count, C-reactive protein, nil per os (NPO) time, hospital duration, computed tomography (CT) findings, location of diverticulitis, operation performed, and presence of comorbidity (e.g., hypertension and diabetes mellitus).

In the multivariate analysis, the statistically significant factor related with hospital duration was the presence of perforation on the CT scan (P < 0.001). Longer NPO time was related with pain score (>7) (P = 0.011). Operations were mainly performed in patients with left-sided colonic diverticulitis (P = 0.012).

We suggest a perforation finding on the CT scan, a severe pain score at least above 7 on a numeric rating pain scale, and a left-sided lesion are absolute indications for in-hospital management.

• Diverticulitis
• Predictive factors

Colonic diverticulitis is uncommon in Korea, but the incidence is rapidly increasing nowadays. The clinical features and the factors associated with complications of diverticulitis are important for properly treating the disease.

A retrospective review of the medical records of 225 patients that were prospectively collected between October 2007 and September 2016 was conducted.

Diverticulitis was detected mainly in men and women aged 30 to 50 years. Diverticulitis more frequently affected the right colon (n = 194, 86.2%), but age was higher in case of left colonic involvement (42 years vs. 57 years, P < 0.001). Percentages of comorbidities (65.6% vs. 23.8%, P < 0.001), complications (65.6% vs. 6.2%, P < 0.001), and surgical treatment (50.0% vs. 4.1%, P < 0.001) were significantly higher in patients with left colonic diverticulitis. In the multivariate analysis, a risk factor for complicated diverticulitis was left colonic involvement (P < 0.001; relative risk [RR], 47.108; 95% confidence interval [CI], 12.651–175.413). In complicated diverticulitis, age over 50 was the only significant risk factor for surgical treatment (P = 0.024; RR, 19.350; 95% CI, 1.474–254.023).

In patients over 50 years of age with left colonic diverticulitis, a preventive colectomy should be reconsidered as one of the options for treatment.

• Clinical characteristics
• Colonic diverticulitis
• Complicated diverticulitis
• Risk factor
• Surgical treatment