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Patient handout

Post-cardiac-arrest care — TTM protocol (cooling, rewarm, fever prevention)

PRODUCTION

1. Your condition

This handout is for post-cardiac-arrest care — ttm protocol (cooling, rewarm, fever prevention). Your care team identified this based on: comatose rosc patient (gcs motor ≤5) — ttm candidate per ttm2 / hyperion (aha 2020 class i).

Other reasons your team may use this plan: core temperature >37.5 °c post-rosc requiring active fever prevention (ttm2 pmid 34133859); rosc with team decision to initiate ttm device (surface or intravascular) within 4h (sandroni 2021).

2. Your medications

Take these medications exactly as prescribed. Do not stop or change a dose without talking to your provider.

MedicationStarting doseHowWhenWhat it does
propofol5-50 µg/kg/min IVIVcontinuous; titrate to RASS -4 to -5 during coolingPADIS 2018 PMID 30113379 — preferred sedative for TTM; rapid offset enables daily neuro exam during rewarm + fever-prevention phase
fentanyl25-100 µg IV bolus → 25-200 µg/h infusionIVcontinuousPADIS 2018; complements propofol; cooling reduces fentanyl clearance — anticipate dose reduction during maintenance phase
magnesium sulfate2 g IV q6h scheduled during cooling phaseIVq6h scheduledBSAS-driven anti-shivering + arrhythmia prevention (cooling drops Mg); Sandroni 2021
buspirone30 mg PO/NG q8h scheduled during coolingPO/NGq8hAnti-shivering adjunct to reduce sedative requirement (Choi NCC 2011)
cisatracurium0.15 mg/kg load → 1-3 µg/kg/min infusionIVcontinuousUsed only with adequate sedation; minimize duration to enable neuro exam during rewarm (Sandroni 2021)
norepinephrine0.05 µg/kg/min IV → titrate MAP ≥65IVcontinuousAHA 2020 Class IIa; SOAP-II PMID 20200382 — preferred over dopamine in shock
acetaminophen650-1000 mg PO/IV q6h scheduled during 72h post-rewarm fever preventionPO/IVq6h × 72h post-rewarmTTM2 PMID 34133859 — fever prevention × 72h is the key intervention; Sandroni 2021

Plan: TTM protocol phenotype — target choice + sedation + shivering control + fever prevention (TTM2 + HYPERION + Sandroni 2021)

3. When to call your provider

Contact your care team if any of the following happen:

  • ICD therapy delivered → urgent EP
  • EF declining despite the four foundational heart-failure medications → advanced HF eval
  • New cognitive decline / depression / PTSD → mental health referral

4. When to seek emergency care

Call 911 or go to the nearest emergency room right away if you have:

  • BSAS ≥2 despite propofol 50 µg/kg/min + fentanyl 200 µg/h + Mg 2g q6h + buspirone 30 mg q8h
  • Core temp ≥38 °C during 72h post-rewarm fever-prevention phase
  • INR >1.5 or PTT >50 + active bleeding during 33 °C cooling phase

5. Follow-up

Post-TTM cognitive screen at d/c + 3 mo; neuropsychology referral if anoxic injury; cardiac rehab; hand-off to long-term cardiology + EP if structural disease (AHA 2020)

6. Sources

Guideline: 2020 AHA ACLS / Post-Cardiac-Arrest Care + 2021 ERC-ESICM Post-Resuscitation Guideline

  1. pubmed.ncbi.nlm.nih.gov/33081530
  2. pubmed.ncbi.nlm.nih.gov/24237006
  3. pubmed.ncbi.nlm.nih.gov/34133859