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. 2024 May;94(5):938-944.
doi: 10.1111/ans.18836. Epub 2023 Dec 22.

Management of acute perianal abscess: is surgeon specialization associated with improved outcomes?

Gregory A Turner  1 , Nicole Tham  1 , Raaj Chandra  1 , David J Read  1 , Timothy J Chittleborough  1 , Jacob J McCormick  1 , Ian P Hayes  1
Affiliations

Management of acute perianal abscess: is surgeon specialization associated with improved outcomes?

Gregory A Turner et al. ANZ J Surg. 2024 May.

Abstract

Background: Acute surgical units (ASU) are increasingly being adopted and in our system are staffed by colorectal and non-colorectal general surgeons. This study aims to evaluate whether surgeon specialization was associated with improved outcomes in perianal abscess.

Methods: Patients with perianal abscess admitted to the ASU between 2016 and 2020 were identified from a prospective database and their medical records reviewed. Patients with IBD, treatment for fistula-in-ano within the preceding year, or perianal sepsis of non-cryptoglandular origin were excluded. Patients admitted under an ASU colorectal (CR) consultant were compared with those under a non-CR general surgeon in a retrospective cohort study. Primary outcome was perianal abscess recurrence. For those without initial fistula, hazard of recurrent abscess or fistula was analysed. Multivariable Cox PH regression analysis was performed.

Results: Four-hundred and eight patients were included (150 CR, 258 non-CR). The CR group more frequently had a fistula identified at index operation (34.0% versus 10.9%, P < 0.0001). However, Cox multivariable analysis found no difference in hazard of recurrent abscess between groups (HR 1.12, 95% CI 0.65-1.95, P = 0.681)). Abscess recurred in 18.7% CR and 15.5% non-CR. Subsequent fistula developed in 14.7% in both groups. For patients without initial fistula, there was no difference between groups in hazard of recurrent abscess or fistula (HR 1.18, 95% CI 0.69-2.01, P = 0.539).

Conclusion: Surgeon specialization was not associated with improved outcomes for ASU patients with perianal abscess, albeit with potential selection bias. CR surgeons were more proactive identifying fistulas; this raises the possibility that drainage alone may be adequate treatment.

Keywords: abscess; cryptoglandular; fistula; perianal.

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