EP.FRI.1040 Management of Acute Colonic Diverticulitis According to The WSES (World Society of Emergency Surgery) Classification in a Tertiary Centre

Aims Debate remains regarding management of complicated diverticulitis. The WSES acute diverticulitis working group published in 2015 a CT-guided classification of left colon acute diverticulitis, divided into uncomplicated (Stage 0) and complicated (Stage 1a-4). Using this classification, we reviewed our management of CT-proven acute colonic diverticulitis. Methods A single-centre retrospective review of management of CT-proven acute colonic diverticulitis over 12 months based on the WSES classification. Results 24 males and 31 females presented (median age=56, IQR 45-68). Median white cell count=12 (IQR 10-16) and median C-reactive protein=88 (IQR 41-157). Based on CT, 25 (45.5%) patients =stage 0, 14 (25.5%) =stage 1a, 6 (11%) =stage 1b, 4 (7%) =stage 2a, 6 (11%) =stage 2b, and none staged 3/4. 15% (8/55) patients had an operation, remainder were conservatively managed. 2 patients had laparoscopic washout/drainage (stages 1b and 2b). 6 patients had Hartmanns (x1 stage 1a, x1 stage 1b, x4 stage 2b).  Median length of stay=5 days (IQR 4-8). There was 1 related reattendance declining readmission (stage 1a managed conservatively) and 2 readmissions (1 stage 0 managed conservatively, other initially stage 1a managed conservatively but on readmission staged 2b proceeding to Hartmanns). 30-day mortality included 3 deaths (stages 1b/2a/2b all managed conservatively). Conclusions Hartmanns resection is advocated as treatment of choice for complicated acute diverticulitis, particularly for Stage 2b or above.