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Purpose <p>This 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).</p> Methods <p>A total of 62 children aged 5–18&#xa0;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.</p> Results <p>The 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 &lt; 1 (p = 0.009).</p> Conclusions <p>While 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.</p>

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Evaluation of rectosigmoid ratio and doppler ultrasound findings in children with functional constipation: a preliminary study

  • 期刊论文

  • 发表日期：

    2025年5月28日

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  • Neslihan Gulcin,
  • Sabriye Gulcin Bozbeyoglu,
  • Arzu Canmemis

摘要

Purpose

This 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).

Methods

A 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.

Results

The 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).

Conclusions

While 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.