ArticleAbdominal radiology (New York)2025
Evaluation of rectosigmoid ratio and doppler ultrasound findings in children with functional constipation: a preliminary study.
Article in Abdominal radiology (New York), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
purposeThis preliminary study investigated the effectiveness of conventional ultrasound (US) and Doppler US in evaluating rectosigmoid ratio (R/S) and blood flow dynamics in children with functional constipation (FC).
methodsA total of 62 children aged 5-18 years were enrolled, including 32 patients with FC and 30 healthy controls. Rectal and sigmoid diameters, R/S ratio, and mesenteric blood flow parameters (PSV, PI, and RI) were assessed using standardized US and Doppler US techniques before and after a three-month treatment regimen including behavioral therapy and osmotic laxatives.
resultsThe R/S ratio significantly improved after treatment in the FC group (p = 0.036), while no significant changes were observed in mesenteric blood flow velocities or resistive indices. Patients with R/S ≥ 1 had significantly lower celiac artery PSV values compared to those with R/S < 1 (p = 0.009).
conclusionsWhile Doppler US did not yield substantial clinical benefits in assessing intestinal blood flow in FC, the non-invasive evaluation of the R/S ratio proved useful in monitoring treatment response. This preliminary study suggests that rectosigmoid measurements may aid in patient management and calls for further research with larger cohorts.
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