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Paeds Casesgenetics-dysmorphology-and-metabolism

Paeds Cases · genetics-dysmorphology-and-metabolism

Counsel a family on a new Prader-Willi diagnosis and the trajectory ahead — OSCE

OSCE communication and shared decision-making station: explaining to parents what a new Prader-Willi syndrome diagnosis means for their hypotonic two-week-old neonate, why a normal karyotype did not detect it, what methylation testing involves, what the syndrome-specific management looks like including growth hormone therapy, why the molecular subtype matters for family recurrence risk, and what the trajectory from neonatal feeding failure to hyperphagia and obesity will look like — while addressing grief, guilt, fear about the future, and the demand for a cure.

osce communication and shared decision-making3 min readVerification in progress

Target exams

MRCPCH ClinicalRACP DCERCPSC Pediatrics
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Target exams

MRCPCH ClinicalRACP DCERCPSC Pediatrics
Prompt
The parents of a two-week-old neonate with profound hypotonia, poor feeding requiring nasogastric feeds, weak cry, cryptorchidism, and characteristic facial features (narrow forehead, almond-shaped palpebral fissures, thin upper lip) have just received a confirmed Prader-Willi syndrome diagnosis via methylation analysis (absent paternal pattern). A standard karyotype was normal. Subtype determination shows a paternal deletion. The parents are grieving, feel the mother must have done something wrong, are anxious about what the future holds, have read frightening accounts of obesity and early death online, and want to know if there is a cure. Counsel them.

Task

Counsel the parents. You have five minutes. Demonstrate an organised, empathic, and accurate explanation that addresses the five questions a fellowship communication station rewards: what the diagnosis means and why the earlier test missed it, what the trajectory looks like (neonatal feeding failure to hyperphagia), what the plan is for their son (growth hormone, dietary control, behavioural support), what the molecular subtype means for recurrence risk, and the honest truth about cure. The management framework follows the GeneReviews clinical guideline and the PWS growth hormone consensus. [1]

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References4ShowHide
  1. [1]Driscoll DJ, Miller JL, Cassidy SB Prader-Willi Syndrome. GeneReviews, 1993.PMID 20301505
  2. [3]Cassidy SB. Prader-Willi and Angelman syndromes. Disorders of genomic imprinting. Medicine, 1998.PMID 9556704
  3. [4]Beygo J, et al. EMQN/ACGS best practice guidelines for molecular analysis of PWS and AS. Eur J Hum Genet, 2019.PMID 31235867
  4. [7]Koch L. Consensus guidelines for GH therapy in Prader-Willi syndrome. Nat Rev Endocrinol, 2013.PMID 23609333
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PreviousCounsel a family on a new fragile X diagnosis and cascade testing — OSCEgenetics-dysmorphology-and-metabolismNextCounsel a family on a new Williams syndrome diagnosis and anaesthetic safety — OSCEgenetics-dysmorphology-and-metabolism