Incidence and risk factors of blowout within 90 days after a primary Hartmann's procedure: a retrospective cohort study.

Purpose: The literature reports a varying occurrence (3-33%) of blowout of the rectal remnant after Hartmann's procedure, and there is a lack of multivariate analyses on potential risk factors for blowout following Hartmann's procedure. We aimed to estimate the incidence of blowout within 90 days after a primary Hartmann's procedure and to identify potential risk factors for blowout through multivariate analysis.

Methods: A retrospective cohort study was conducted at the Department of Surgery, Aarhus University Hospital, a Danish primary and tertiary hospital.