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Master Thesis

Signes scanographiques prédictifs d'ischémie colique dans le volvulus du sigmoïde

Abstract : Objectives: to look for scanographic features that can help predict digestive ischemia in patients with sigmoid volvulus (SV). Methods: retrospective collection of CT scans performed on 73 patients hospitalized for VS and systematic analysis by two radiologists with consensus of the potentially predictive signs of ischemia. The reference for the diagnosis of ischemia was represented by the histological examination of the surgical specimen and/or the endoscopy report. Univariate logistic analysis was used to identify signs predictive of ischemia. Results: of the 73 patients included, 29 (40%) had signs of ischemia regardless of reversibility. The univariate analysis showed that only two CT signs were statistically significant in predicting sigmoid ischemia: occlusion of the lower mesenteric artery (Se=45%; Sp=79%; LR+=2.22; LR-=0.69) and reduced bowel wall enhancement of the twisted loop (Se=27%; Sp=97%; LR+=10.91; LR-=0.75).These two predictive factors must be assessed close to the torsion knot and in our study showed average reproducibility. Conclusion: LMA occlusion and reduced bowel wall enhancement analyzed near the torsion knot are two factors independently predictive of digestive ischemia in patients with SV.
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https://dumas.ccsd.cnrs.fr/dumas-02863847
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Submitted on : Wednesday, June 10, 2020 - 4:12:01 PM
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Antoine Bailly. Signes scanographiques prédictifs d'ischémie colique dans le volvulus du sigmoïde. Sciences du Vivant [q-bio]. 2020. ⟨dumas-02863847⟩

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