Medical devices, digital health and remote monitoring — viva

Branching structured oral on the four classes of paediatric medical device, the CGM and pulse oximeter sensor physiologies, the equity and accuracy failures, and the shared-decision deployment of a remote-monitoring device with a family.

branching clinical structured oral6 min readVerification in progress

Prompt

You are the paediatric registrar seeing a series of families with digital-health questions: a parent's smartwatch that has flagged an irregular rhythm in their eight-year-old, a four-year-old with type 1 diabetes whose CGM is generating night-time alarms, and a six-month-old with bronchopulmonary dysplasia on home pulse oximetry whose parents are dark-skinned.

Opening (must-hit)

"A paediatric medical device is any regulated instrument or software used to diagnose, monitor or treat a child. The four classes are implantable or long-term, wearable or on-body, home monitoring and telehealth platforms, and the candidate must distinguish a regulated medical-grade device from a consumer wellness product. The two highest-yield sensor physiologies are the continuous glucose monitor — interstitial glucose lagging plasma by five to fifteen minutes — and the pulse oximeter, which is biased by dark skin pigmentation and low perfusion. The ISPAD 2024 ambulatory glucose profile targets are time in range over 70 per cent, time below 70 mg/dL under 4 per cent, time below 54 mg/dL under 1 per cent. Every device is deployed only after the clinical question, the age validation, the thresholds and the escalation pathway are agreed with the family." [4] [8]

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References8Show ledger

[1]Wadwa RP Trial of Hybrid Closed-Loop Control in Young Children with Type 1 Diabetes N Engl J Med, 2023.PMID 36920756
[3]SENCE Study Group A Randomized Clinical Trial Assessing Continuous Glucose Monitoring Use With Standardized Education With or Without a Family Behavioral Intervention Compared With Fingerstick Blood Glucose Monitoring in Very Young Children With Type 1 Diabetes Diabetes Care, 2021.PMID 33334807
[4]Battelino T Continuous glucose monitoring and metrics for clinical trials: an international consensus statement Lancet Diabetes Endocrinol, 2023.PMID 36493795
[5]Sjoding MW Racial Bias in Pulse Oximetry Measurement N Engl J Med, 2020.PMID 33326721
[6]Gudelunas MK Low Perfusion and Missed Diagnosis of Hypoxemia by Pulse Oximetry in Darkly Pigmented Skin: A Prospective Study Anesth Analg, 2024.PMID 38109495
[7]Rathod M Improving the Accuracy and Equity of Pulse Oximeters: Collaborative Recommendations JACC Adv, 2022.PMID 38939706
[8]Foster C Remote Monitoring of Patient- and Family-Generated Health Data in Pediatrics Pediatrics, 2022.PMID 35102417
[9]Li Z Usability and Effectiveness of eHealth and mHealth Interventions That Support Self-Management and Health Care Transition in Adolescents and Young Adults With Chronic Disease: Systematic Review J Med Internet Res, 2024.PMID 39589770