LighthouseTrauma Care Systems
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Biosensing & Biofeedback

Optional trends for heart rate, HRV, sleep duration and activity — paired with HRV biofeedback programs led by clinicians.

What we track

Resting HR, HRV (RMSSD/SDNN), sleep duration, steps — simple, interpretable, opt-in.

  • HRV context: lower resting HRV is commonly observed in PTSD and linked to autonomic dysregulation.
  • Biofeedback: paced-breathing HRV-BF shows promise for symptom reduction and stress regulation; program structure matters.
  • Privacy first: device connections are optional; sharing to the care team is explicit and revocable.

How it wires up

Devices authorize to Lighthouse; summaries become FHIR Observation resources in Medplum; device metadata as Device. Sharing is per-participant, per-program.

Citations

  1. Ge et al., 2020. PTSD and alterations in resting HRV (review).
  2. Wang et al., 2025. Umbrella review: decreased HRV in several mental disorders including PTSD.
  3. Kenemore et al., 2024. Meta-analysis: HRV biofeedback for military service members with PTSD.
  4. Pyne et al., 2018. RCT: HRV biofeedback vs active comparator in trauma-exposed adults.
  5. Castro Ribeiro et al., 2023. HRV-BF reduced stress/PTSD risk in frontline HCWs.