Intest Res.  2023 Oct;21(4):481-492. 10.5217/ir.2023.00005.

Comparative outcomes of acute colonic diverticulitis in immunocompromised versus immunocompetent patients: a systematic review and meta-analysis

Affiliations
  • 1Division of Gastroenterology, Department of Internal Medicine, Hallym University Dongtan Sacred Heart Hospital, Hallym University College of Medicine, Hwaseong, Korea
  • 2Division of Gastroenterology, Department of Internal Medicine, Inje University Haeundae Paik Hospital, Inje University College of Medicine, Busan, Korea
  • 3Department of Health Promotion Medicine, Ewha Womans University Seoul Hospital, Ewha Womans University College of Medicine, Seoul, Korea
  • 4Division of Gastroenterology, Department of Internal Medicine, Jeju National University Hospital, Jeju National University College of Medicine, Jeju, Korea
  • 5Digestive Disease Center, CHA Bundang Medica Center, CHA University, Seongnam, Korea
  • 6Division of Gastroenterology, Department of Internal Medicine, Hallym University Chuncheon Sacred Heart Hospital, Hallym University College of Medicine, Chuncheon, Korea
  • 7Center for Colorectal Cancer, National Cancer Center, Goyang, Korea
  • 8Division of Gastroenterology, Department of Internal Medicine, Daejeon St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Daejeon, Korea
  • 9Department of Radiology, Kyung Hee University Hospital, College of Medicine, Kyung Hee University, Seoul, Korea
  • 10Division of Gastroenterology, Department of Internal Medicine, Ewha Womans University Mokdong Hospital, Ewha Womans University College of Medicine, Seoul, Korea

Abstract

Background/Aims
Immunocompromised patients with acute colonic diverticulitis are at high risk for complications and failure of non-surgical treatment. However, evidence on the comparative outcomes of immunocompromised and immunocompetent patients with diverticulitis is lacking. This systematic review and meta-analysis investigated the outcomes of medical treatment in immunocompromised and immunocompetent patients with diverticulitis.
Methods
A comprehensive literature search was conducted in PubMed, Embase, and the Cochrane Library. Studies comparing the clinical outcomes of immunocompromised and immunocompetent patients with diverticulitis were included.
Results
A total of 10 studies with 1,946,461 subjects were included in the quantitative synthesis. The risk of emergency surgery and postoperative mortality after emergency surgery was significantly higher in immunocompromised patients than in immunocompetent patients with diverticulitis (risk ratio [RR], 1.76; 95% confidence interval [CI], 1.31–2.38 and RR, 3.05; 95% CI, 1.70–5.45, respectively). Overall risk of complications associated with diverticulitis was non-significantly higher in immunocompromised than in immunocompetent patients (RR, 1.24; 95% CI, 0.95–1.63). Overall mortality irrespective of surgery was significantly higher in immunocompromised than in immunocompetent patients with diverticulitis (RR, 3.65; 95% CI, 1.73–7.69). By contrast, postoperative mortality after elective surgery was not significantly different between immunocompromised and immunocompetent patients with diverticulitis. In subgroup analysis, the risk of emergency surgery and recurrence was significantly higher in immunocompromised patients with complicated diverticulitis, whereas no significant difference was shown in mild disease.
Conclusions
Immunocompromised patients with diverticulitis should be given the best medical treatment with multidisciplinary approach because they had increased risks of surgery, postoperative morbidity, and mortality than immunocompetent patients.

Keyword

Colonic diverticulitis; Immunocompromised host; Treatment outcome

Figure

  • Fig. 1. PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) flowchart.

  • Fig. 2. Forest plot of (A) overall need for surgery and (B) emergency surgery in immunocompromised versus immunocompetent patients with acute colonic diverticulitis using a random-effects model. M-H, Mantel-Haenszel; CI, confidence interval.

  • Fig. 3. Forest plot of complicated disease of acute colonic diverticulitis in immunocompromised versus immunocompetent patients using a random-effects model. M-H, Mantel-Haenszel; CI, confidence interval.

  • Fig. 4. Forest plot of (A) overall mortality and (B) postoperative mortality in immunocompromised versus immunocompetent patients with acute colonic diverticulitis using a random-effects model. M-H, Mantel-Haenszel; CI, confidence interval.

  • Fig. 5. Forest plot of length of hospital stay in immunocompromised versus immunocompetent patients with acute colonic diverticulitis using a random-effects model. SD, standard deviation; CI, confidence interval.

  • Fig. 6. Forest plot of recurrence rate in immunocompromised versus immunocompetent patients with acute colonic diverticulitis using a fixed-effects model. M-H, Mantel-Haenszel; CI, confidence interval.

  • Fig. 7. Forest plot of major morbidity after elective surgery for acute colonic diverticulitis in immunocompromised versus immunocompetent patients using a fixed-effects model. M-H, Mantel-Haenszel; CI, confidence interval.


Cited by  1 articles

Not all acute colonic diverticulitis follows the same course: a potential risk for immunocompromised individuals
Yehyun Park
Intest Res. 2023;21(4):415-417.    doi: 10.5217/ir.2023.00142.


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