A high-dose oral protocol combining PEG + E sachets and SP drops successfully and safely disimpacted a cohort of children with acute/chronic constipation presenting to a suburban continence clinic. This protocol appears to be useful to control faecal disimpaction in an outpatient setting, thereby avoiding hospital admission.

Background and AimPolyethylene glycol (PEG) is the gold standard for fecal disimpaction in constipation. A regimen of PEG combined with the stimulant laxative sodium picosulphate (SPS) produced fecal disimpaction in chronically constipated children in the community, but it is unknown if it is effective for more severe constipation. To determine the stool output and effect of a combined PEG and SPS regimen on fecaloma in children with severe constipation and impaction.MethodsChildren with symptoms for a duration of ≥2 years, a palpable fecaloma, and enlarged rectum on X‐ray (rectal: pelvic ratio > 0.6) were recruited from a tertiary hospital. Daily diaries recorded laxative dose, stool frequency, volume, and consistency (Bristol stool scale, BSS). Abdominal X‐rays were taken on day 1 and day 8, and stool loading was assessed using the Leech score. Laxative doses were based on the child's age. The dose of PEG with electrolytes taken was 2–8 sachets (14.7 g/sachet) on days 1–2, reducing to 2–6 sachets on day 3. The SPS dose was 15–20 drops on days 2–3.ResultsEighty‐nine children (4–18 years) produced a large volume of soft stool (median/inter‐quartile‐range: 2.2/1.6–3.1 L) over 7 days. Stool volume on X‐rays decreased significantly in the colon (P < 0.001). Fecalomas resolved in 40 of 89 children, while 49 needed a second high dose. Rectal:pelvic ratios did not change.ConclusionsA combined high dose of PEG and SPS on days 1 and 2 was effective in removing the fecaloma in half of the children. Administering high doses for a longer period should be tested to provide outpatient disimpaction for severe fecalomas. Rectums remained flaccid after emptying.

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