Meltzer AC, Pines JM, Richards LM, Mullins P, Mazer-Amirshahi M. US emergency department visits for adults with abdominal and pelvic pain (2007–13): trends in demographics, resource utilization and medication usage. Am J Emerg Med. 2017;35(12):1966–9.

Article  PubMed  Google Scholar 

Kang JY, Hoare J, Tinto A, Subramanian S, Ellis C, Majeed A, et al. Diverticular disease of the colon–on the rise: a study of hospital admissions in England between 1989/1990 and 1999/2000. Aliment Pharmacol Ther. 2003;17(9):1189–95.

Article  CAS  PubMed  Google Scholar 

Etzioni DA, Mack TM, Beart RW, Kaiser AM. Diverticulitis in the United States: 1998–2005: changing patterns of disease and treatment. Ann Surg. 2009;249(2):210–7.

Article  PubMed  Google Scholar 

Theodoropoulos D. Current options for the emergency management of diverticular disease and options to reduce the need for colostomy. Clin Colon Rectal Surg. 2018;31(4):229–35.

Article  PubMed  PubMed Central  Google Scholar 

Hupfeld L, Burcharth J, Pommergaard H-C, Rosenberg J. Risk factors for recurrence after acute colonic diverticulitis: a systematic review. Int J Colorectal Dis. 2017;32(5):611–22.

Article  PubMed  Google Scholar 

Ho VP, Nash GM, Milsom JW, Lee SW. Identification of diverticulitis patients at high risk for recurrence and poor outcomes. J Trauma Acute Care Surg. 2015;78(1):112–9.

Article  PubMed  Google Scholar 

Tan K-K, Wong J, Yan Z, Chong C-S, Liu JZ, Sim R. Colonic diverticulitis in young Asians: a predominantly mild and right-sided disease. ANZ J Surg. 2014;84(3):181–4.

Article  PubMed  Google Scholar 

Kim Y-C, Chung J-W, Baek J-H, Lee W-S, Kim D, Park Y-H, et al. Risk factors for recurrence of right colonic diverticulitis. Dig Surg. 2019;36(6):509–13.

Article  PubMed  Google Scholar 

Park H-C, Kim BS, Lee K, Kim MJ, Lee BH. Risk factors for recurrence of right colonic uncomplicated diverticulitis after first attack. Int J Colorectal Dis. 2014;29(10):1217–22.

Article  PubMed  Google Scholar 

Hajibandeh S, Hajibandeh S, Smart NJ, Maw A. Meta-analysis of the demographic and prognostic significance of right-sided versus left-sided acute diverticulitis. Colorectal Dis. 2020;22(12):1908–23.

Article  CAS  PubMed  Google Scholar 

Page MJ, McKenzie JE, Bossuyt PM, Boutron I, Hoffmann TC, Mulrow CD, et al. The PRISMA 2020 statement: an updated guideline for reporting systematic reviews. BMJ. 2021;372: n71.

Article  PubMed  PubMed Central  Google Scholar 

Sterne JAC, Savović J, Page MJ, Elbers RG, Blencowe NS, Boutron I, et al. RoB 2: a revised tool for assessing risk of bias in randomised trials. BMJ. 2019;366: l4898.

Article  PubMed  Google Scholar 

Stang A. Critical evaluation of the Newcastle-Ottawa scale for the assessment of the quality of nonrandomized studies in meta-analyses. Eur J Epidemiol. 2010;25(9):603–5.

Article  PubMed  Google Scholar 

DerSimonian R, Kacker R. Random-effects model for meta-analysis of clinical trials: an update. Contemp Clin Trials. 2007;28(2):105–14.

Article  PubMed  Google Scholar 

Jackson D, Law M, Rücker G, Schwarzer G. The Hartung-Knapp modification for random-effects meta-analysis: a useful refinement but are there any residual concerns? Stat Med. 2017;36(25):3923–34.

Article  PubMed  PubMed Central  Google Scholar 

Higgins JPT, Thompson SG. Quantifying heterogeneity in a meta-analysis. Stat Med. 2002;21(11):1539–58.

Article  PubMed  Google Scholar 

Mizuki A, Tatemichi M, Nakazawa A, Tsukada N, Nagata H, Kanai T. Changes in the clinical features and long-term outcomes of colonic diverticulitis in japanese patients. Intern Med. 2017;56(22):2971–7.

Article  PubMed  PubMed Central  Google Scholar 

Lee KY, Lee J, Park YY, Kim Y, Oh ST. Difference in clinical features between right- and left-sided acute colonic diverticulitis. Sci Rep. 2020;10(1):3754.

Article  CAS  PubMed  PubMed Central  Google Scholar 

Park YY, Nam S, Han JH, Lee J, Cheong C. Predictive factors for conservative treatment failure of right colonic diverticulitis. Ann Surg Treat Res. 2021;100(6):347–55.

Article  CAS  PubMed  PubMed Central  Google Scholar 

Park SM, Kwon TS, Kim DJ, Lee YS, Cheung DY, Oh ST, et al. Prediction and management of recurrent right colon diverticulitis. Int J Colorectal Dis. 2014;29(11):1355–60.

Article  PubMed  Google Scholar 

Chen Z, Zhang B, Wu D, Jin Y. Characteristics of predominantly right-sided colonic diverticulitis without need for colectomy. BMC Surg. 2020;20(1):202.

Article  PubMed  PubMed Central  Google Scholar 

Moon HJ, Park JK, Lee JI, Lee JH, Shin HJ, Kim WS, et al. Conservative treatment for patients with acute right colonic diverticulitis. Am Surg. 2007;73(12):1237–41.

Article  PubMed  Google Scholar 

Issa N, Paran H, Yasin M, Neufeld D. Conservative treatment of right-sided colonic diverticulitis. Eur J Gastroenterol Hepatol. 2012;24(11):1254–8.

PubMed  Google Scholar 

Ha GW, Lee MR, Kim JH. Efficacy of conservative management in patients with right colonic diverticulitis. ANZ J Surg. 2017;87(6):467–70.

Article  PubMed  Google Scholar 

Park SJ, Choi SI, Lee SH, Lee KY. Image-guided conservative management of right colonic diverticulitis. World J Gastroenterol. 2009;15(46):5838–42.

Article  PubMed  PubMed Central  Google Scholar 

Kim TJ, Lee IK, Park JK, Lee YS, Si Y, Jung H, et al. Is conservative treatment with antibiotics the correct strategy for management of right colonic diverticulitis?: a prospective study. J Korean Soc Coloproctol. 2011;27(4):188–93.

Article  PubMed  PubMed Central  Google Scholar 

Park H-C, Kim BS, Lee BH. Management of right colonic uncomplicated diverticulitis: outpatient versus inpatient management. World J Surg. 2011;35(5):1118–22.

Article  PubMed  Google Scholar 

Kim JY, Park SG, Kang HJ, Lim YA, Pak KH, Yoo T, et al. Prospective randomized clinical trial of uncomplicated right-sided colonic diverticulitis: antibiotics versus no antibiotics. Int J Colorectal Dis. 2019;34(8):1413–20.

Article  PubMed  Google Scholar 

Courtot L, Bridoux V, Lakkis Z, Piessen G, Manceau G, Mulliri A, et al. Long-term outcome and management of right colonic diverticulitis in western countries: multicentric retrospective study. J Visc Surg. 2019;156(4):296–304.

Article  CAS  PubMed  Google Scholar 

Schneider LV, Millet I, Boulay-Coletta I, Taourel P, Loriau J, Zins M. Right colonic diverticulitis in caucasians: presentation and outcomes versus left-sided disease. Abdom Radiol (NY). 2017;42(3):810–7.

Article  Google Scholar 

Destek S, Gul VO. Effectiveness of conservative approach in right colon diverticulitis. Ulus Travma Acil Cerrahi Derg. 2019;25(4):396–402.

PubMed  Google Scholar 

Matsushima K. Management of right-sided diverticulitis: a retrospective review from a hospital in Japan. Surg Today. 2010;40(4):321–5.

Article  PubMed  Google Scholar 

Park HC, Chang MY, Lee BH. Nonoperative management of right colonic diverticulitis using radiologic evaluation. Colorectal Dis. 2010;12(2):105–8.

Article  PubMed  Google Scholar 

Park JH, Park HC, Lee BH. One-day versus four-day antibiotic treatment for acute right colonic uncomplicated diverticulitis: a randomized clinical trial. Turk J Gastroenterol. 2019;30(7):605–10.

Article  PubMed  Google Scholar 

Yang HR, Huang HH, Wang YC, Hsieh CH, Chung PK, Jeng LB, et al. Management of right colon diverticulitis: a 10-year experience. World J Surg. 2006;30(10):1929–34.

Article  PubMed  Google Scholar 

Reisman Y, Ziv Y, Kravrovitc D, Negri M, Wolloch Y, Halevy A. Diverticulitis: the effect of age and location on the course of disease. Int J Colorectal Dis. 1999;14(4–5):250–4.

Article  CAS  PubMed  Google Scholar 

Daniels L, Ünlü Ç, de Korte N, van Dieren S, Stockmann HB, Vrouenraets BC, et al. Randomized clinical trial of observational versus antibiotic treatment for a first episode of CT-proven uncomplicated acute diverticulitis. Br J Surg. 2017;104(1):52–61.

Article  CAS  PubMed  Google Scholar 

Pisanu A, Vacca V, Reccia I, Podda M, Uccheddu A. Acute diverticulitis in the young: the same disease in a different patient. Gastroenterol Res Pract. 2013;2013: 867961.

Article  PubMed  PubMed Central  Google Scholar 

Santos A, Mentula P, Pinta T, Ismail S, Rautio T, Juusela R, et al. Comparing laparoscopic elective sigmoid resection with conservative treatment in improving quality of life of patients with diverticulitis: the laparoscopic elective sigmoid resection following diverticulitis (LASER) randomized clinical trial. JAMA Surg. 2021;156(2):129–36.

Article  PubMed  Google Scholar 

Holmer C, Lehmann