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  • Title: Rectal stump leakage: A neglected complication after Hartmann's procedure for colorectal cancer.
    Author: Huang X, Xiao Z, Huang Z.
    Journal: Surgery; 2023 Sep; 174(3):502-507. PubMed ID: 37385865.
    Abstract:
    BACKGROUND: Hartmann's procedure is widely used in large bowel obstruction caused by colorectal cancer. However, rectal stump leakage, one of its serious complications, has not been well investigated in the literature. METHODS: Patients with colorectal cancer who underwent Hartmann's procedure between January 2015 and January 2022 were retrospectively assessed. Rectal stump leakage was diagnosed based on the clinical symptoms, nature of drainage fluid, and computed tomography characteristics. The patients were categorized into the following 2 groups: non-rectal stump leakage group and rectal stump leakage group. A multivariate logistic regression model was used to identify independent risk factors for rectal stump leakage. RESULTS: The incidence rate of postoperative rectal stump leakage was 11.6% in our patients. Univariate analysis revealed that male sex, body mass index (underweight), and tumor location (below the peritoneal reflection) were risk factors for rectal stump leakage (P < .05). Multivariate regression analysis confirmed these 3 factors were independent risk factors for rectal stump leakage (P < .05). Computed tomography imaging characteristics of patients with rectal stump leakage usually included inflammatory exudate and edema of the rectal stump, fluid, or gas-containing abscess around the rectal stump. The computed tomography imaging characteristics of a gas-containing abscess around the rectal stump and an abdominal drainage tube advanced into the rectum via the rectal stump could confirm the diagnosis of rectal stump leakage. The incidence rate of small bowel obstruction in group 2 (69.2%) was significantly higher than that in group 1 (15.7%) (P = .000). CONCLUSION: Male sex, body mass index (underweight), and tumor location (below the peritoneal reflection) were independent risk factors for rectal stump leakage after Hartmann's procedure. We suggested that rectal stump leakage be classified into inflammatory exudation and abscess stages on computed tomography imaging. Unexplained small bowel obstruction after Hartmann's procedure may be an important clue to the early diagnosis of rectal stump leakage.
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