Psych MEQs / SAQs · Child and adolescent psychiatry — elimination disorders
Elimination disorders — enuresis and encopresis stepped care (MEQ)
FRANZCP-style MEQ on enuresis and retentive encopresis: classification, assessment, alarm vs desmopressin, disimpaction/PEG, non-punitive care.
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Target exams
Model answer
Reveal model answer
(i) Classification. Age thresholds: enuresis ≥5 years; encopresis ≥4 years (or equivalent developmental level). Night wetting never dry = primary nocturnal enuresis; no daytime LUTS suggests monosymptomatic nocturnal enuresis (MNE) in ICCS terms. Underwear staining with large hard stools and withholding = encopresis with constipation and overflow incontinence (retentive), not wilful dirtiness.[1][2][7]
(ii) Assessment. Bladder–bowel diary; constipation screen; growth, abdominal faecal mass, spine/neurology; ADHD screen given inattention/fidgeting; bullying/shame; parental punishment practices; urinalysis if indicated; escalate investigations for red flags (polyuria/polydipsia, continuous wetting, neuro signs, secondary onset with medical features).[1][2][3]
(iii) Management. Stop punishment. Bowel first: education, disimpaction, PEG maintenance to soft daily stools, scheduled toileting after meals, reward sitting/success — ESPGHAN/NASPGHAN-aligned.[6][7] Enuresis: alarm for durable cure if family ready; desmopressin for camp dryness with strict evening fluid restriction and hyponatraemia counselling; imipramine last-line only (cardiotoxicity/overdose).[3][4][5][8] Treat ADHD if confirmed.
(iv) Stigma. Name overflow mechanism to parents/school; no sheet-washing punishments; anti-bullying plan; discrete camp arrangements.[1][3]
(v) Prognosis/disposition. Spontaneous improvement common with age but impairment warrants active care; alarm more durable than desmopressin after stopping; bowel maintenance for months to prevent relapse. Paediatric/continence pathway for medical care; CAMHS for ADHD, family conflict, psychological sequelae.[3][4][5][6]
Common errors
- Treating only night wetting while missing retentive encopresis.[6][7]
- Prescribing desmopressin without fluid-restriction teaching.[5]
- Endorsing punishment as "motivation."[1]
- Using imipramine first-line.[8]
- Calling overflow soiling deliberate diarrhoea.[6][7]
References
- [1]Fritz G, Rockney R, et al. Practice parameter for the assessment and treatment of children and adolescents with enuresis J Am Acad Child Adolesc Psychiatry, 2004.PMID 15564822
- [2]Neveus T, Eggert P, Evans J, et al. Evaluation of and treatment for monosymptomatic enuresis: a standardization document from the International Children's Continence Society J Urol, 2010.PMID 20006865
- [3]Nunes VD, O'Flynn N, Evans J, Sawyer L Management of bedwetting in children and young people: summary of NICE guidance BMJ, 2010.PMID 20980375
- [4]Caldwell PH, Codarini M, Stewart F, Hahn D, Sureshkumar P Alarm interventions for nocturnal enuresis in children Cochrane Database Syst Rev, 2020.PMID 32364251
- [5]Hahn D, et al. Desmopressin for nocturnal enuresis in children Cochrane Database Syst Rev, 2025.PMID 40728007
- [6]Tabbers MM, DiLorenzo C, Berger MY, et al. Evaluation and treatment of functional constipation in infants and children: evidence-based recommendations from ESPGHAN and NASPGHAN J Pediatr Gastroenterol Nutr, 2014.PMID 24345831
- [7]Loening-Baucke V Functional fecal retention with encopresis in childhood J Pediatr Gastroenterol Nutr, 2004.PMID 14676600
- [8]Caldwell PH, Sureshkumar P, Wong WC Tricyclic and related drugs for nocturnal enuresis in children Cochrane Database Syst Rev, 2016.PMID 26789925