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cardio.cardiac-tamponade.blunt-chest-trauma.v1PRODUCTION
cardio.cardiac-tamponade.blunt-chest-trauma.v1

Cardiac tamponade — blunt chest trauma (MVA, fall, sternal blow)

cardiologyacuteadult
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10/12 authored

Canonical 12-phase frame with authored status for this dossier.

Current phase

Frame

Detailed

Blunt cardiac trauma + Beck triad / E-FAST pericardial fluid → traumatic hemopericardium with obstructive shock; ATLS primary survey first then activate cardiothoracic / trauma surgery (ATLS; ESC 2015 §Trauma)

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blunt-trauma context + tamponade physiology suspected

Patient inputs (10)

Older patients have higher mortality from blunt cardiac injury; pediatric blunt cardiac injury rare but distinctive (ATLS)

Compensatory tachycardia in tamponade physiology; bradycardia in late tamponade is pre-arrest (ESC 2015)

MVC vs fall vs sternal blow vs crush — drives pre-test probability + concurrent-injury workup (steering-wheel sign, sternal/rib fracture, aortic isthmus injury) (ATLS §Thoracic)

Subxiphoid pericardial view of E-FAST identifies hemopericardium with very high sensitivity in trained hands; the C-step adjunct in ATLS for any blunt-trauma hypotension (Rozycki Ann Surg 1998)

Confirmatory imaging — RV diastolic collapse, IVC plethora, swinging heart; TEE if obese, mechanically ventilated, or prosthetic chest wall barriers (ESC 2015)

Admission ECG is the EAST 2012 Class I screen for blunt cardiac injury — combined with troponin determines downstream workup vs discharge (Clancy J Trauma 2012 PMID 23114492)

Combined with admission ECG per EAST 2012; positive troponin + abnormal ECG mandates admission + monitoring; type-2 MI from contusion / coronary tear (4th UDef MI PMID 30153967)

Hemorrhagic loss quantification + transfusion threshold; blunt cardiac trauma often co-exists with major hemorrhage from other sources (ATLS)

Trauma-induced coagulopathy quantification; pre-injury anticoagulants drive reversal strategy (Bhatt Circulation 2018)

Hypotension is part of Beck triad + obstructive-shock physiology in tamponade; blunt-trauma + hypotension demands immediate FAST (ATLS C step)

* = hard-required. Engine cannot meaningfully run until these are filled.

Severity triggers (6)

6 need judgement
  • informationallife_threateningblunt_traumatic_hemopericardium_with_obstructive_shock
    Blunt-mechanism injury + Beck triad (or near-Beck) + E-FAST positive pericardial fluid + SBP <90 → emergent drainage + surgical activation (ATLS; ESC 2015 §Trauma)
    Trigger could not be auto-evaluated — needs clinician judgement.
  • informationallife_threateningblunt_traumatic_arrest_within_10_min_of_arrival
    Blunt-trauma cardiac arrest <10 min from arrival → ED resuscitative thoracotomy may be considered per WSES 2019 (PMID 31867050) — historical survival ~2% but >0
    Trigger could not be auto-evaluated — needs clinician judgement.
  • informationallife_threateningconcurrent_aortic_isthmus_injury_on_ct
    High-mechanism MVC + traumatic hemopericardium + CT chest demonstrates aortic isthmus injury (intimal flap, pseudoaneurysm, contrast extravasation) → multidisciplinary trauma + cardiothoracic + vascular surgery (ATLS; ~25% co-occurrence in high-mechanism MVC)
    Trigger could not be auto-evaluated — needs clinician judgement.
  • informationallife_threateningpersistent_bleeding_despite_drainage_and_reversal_post_blunt_trauma
    Pericardial drainage output >200 mL/h OR ongoing transfusion requirement >4 units PRBC/24h despite reversal — surgical exploration mandatory (ATLS; ESC 2015)
    Trigger could not be auto-evaluated — needs clinician judgement.
  • informationallife_threateningmalignant_arrhythmia_post_blunt_cardiac_injury
    Sustained VT or VF in first 72h post-blunt cardiac injury → blunt cardiac injury arrhythmia (Stafford 2017 — ~2-3% rate)
    Trigger could not be auto-evaluated — needs clinician judgement.
  • informationalseverelate_valve_disruption_post_blunt_cardiac_injury
    New holosystolic murmur + new dyspnea + new edema weeks-months post-blunt cardiac injury → late valve disruption (tricuspid > mitral > aortic per Stafford 2017)
    Trigger could not be auto-evaluated — needs clinician judgement.

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Recommended regimen

Blunt cardiac trauma → tamponade — damage-control resuscitation + bridge drainage + surgical repair (ATLS; EAST 2012; CRASH-2)
axis: blunt_cardiac_trauma_tamponade_drainage_resuscitation
Selected axis "Blunt cardiac trauma → tamponade — damage-control resuscitation + bridge drainage + surgical repair (ATLS; EAST 2012; CRASH-2)" by default fallback (first axis)
  • normal saline
    first line
    isotonic_crystalloid
    500-1000 mL bolus then minimize per damage-control resuscitation • IV • rapid bolus then reassess
    triggers: hypotension_pre_drainage_pre_blood_products
    Bridge preload until blood products available; minimize crystalloid in trauma to avoid dilutional coagulopathy (ATLS damage-control)
    rxcui 9863
  • norepinephrine
    rescue
    vasopressor
    0.05-0.5 µg/kg/min titrate to MAP ≥65 (or permissive 80-90 SBP per damage-control) • IV • continuous
    triggers: SBP_lt_85_despite_fluids_and_blood
    Bridge only — does not address obstruction; concurrent hemorrhagic shock often present (Roy JAMA 2007 PMID 17456823)
    rxcui 7512
  • tranexamic acid
    first line
    antifibrinolytic
    1 g IV over 10 min then 1 g over 8h • IV • bolus + infusion
    triggers: within_3h_of_blunt_chest_trauma_with_hemorrhage_or_tamponade
    CRASH-2 PMID 20554319 — mortality benefit if administered within 3h of injury in trauma with significant hemorrhage; class evidence extends to traumatic hemopericardium
    rxcui 10691
  • protamine
    first line
    heparin_antagonist
    1 mg per 100 U residual UFH (max 50 mg single dose) • IV • slow IV over 10 min
    triggers: pre_injury_ufh_or_lmwh_at_time_of_trauma
    Reverse UFH; partial reversal of LMWH (~60%); ESC 2015; standard reversal in active bleeding
    rxcui 8825
  • phytonadione
    first line
    vitamin_k
    10 mg IV slow over 10 min • IV • single dose
    triggers: pre_injury_warfarin_with_supratherapeutic_inr
    Vit K reverses warfarin synthesis defect; works over 6-12h (Bhatt Circulation 2018)
    rxcui 8308
  • 4-factor prothrombin complex concentrate
    first line
    pcc_4_factor
    25-50 U/kg based on INR • IV • single dose
    triggers: pre_injury_warfarin_with_life_threatening_bleeding
    Immediate factor replacement for warfarin reversal in major bleeding (Bhatt Circulation 2018)
    rxcui 1670383
  • idarucizumab
    comorbidity specific
    monoclonal_antibody_dabigatran_reversal
    5 g IV (2 × 2.5 g vials) • IV • single dose
    triggers: pre_injury_dabigatran_with_life_threatening_bleeding
    RE-VERSE AD (Pollack NEJM 2017 PMID 28793172) — complete dabigatran reversal within minutes
    rxcui 1716191
  • andexanet alfa
    comorbidity specific
    modified_factor_xa_decoy
    low or high dose per agent + dose + timing per ANNEXA-4 protocol • IV • bolus + 2h infusion
    triggers: pre_injury_apixaban_or_rivaroxaban_with_life_threatening_bleeding
    ANNEXA-4 (Connolly NEJM 2019 PMID 30730782) — anti-FXa reversal
    rxcui 2045114
  • acetaminophen
    add on
    analgesic_non_opioid
    650-1000 mg q6h scheduled • PO/IV • q6h
    triggers: post_drainage_or_post_op_analgesia
    NSAID avoidance in immediate post-trauma / post-op due to bleeding + AKI risk; opioids titrated per pain
    rxcui 161

outpatient playbook — drug actions (3)

  1. 1. anticoagulation per indication
    rxcui 11289
    warfarin or DOAC at maintenance dose • PO • per agent
    trigger: Ongoing indication
    Bhatt Circulation 2018
  2. 2. beta-blocker if persistent post-blunt cardiac injury arrhythmia or rate-control indication
    rxcui 6918
    metoprolol succinate 25-100 mg daily • PO • daily
    trigger: Persistent arrhythmia indication
    Standard rate control + cardioprotection
  3. 3. colchicine + NSAID if late post-cardiotomy / post-pericardiotomy syndrome develops
    rxcui 2555
    0.5 mg BID + ibuprofen 600 mg TID × 1-3 mo • PO • BID + TID
    trigger: Symptomatic post-cardiotomy syndrome (fever + pleuritic chest pain weeks-months post-op)
    Imazio CIRCS NEJM 2015 PMID 26315582

Auto-drafted A&P note

outpatient

Subjective

- Possible entry pathways: High-speed MVC with steering-wheel impact + chest pain / dyspnea / hypotension → blunt cardiac injury screen (ATLS §Thoracic; EAST 2012 PMID 23114492); Fall from height >3 m with thoracic landing + new hypotension or muffled heart sounds → traumatic hemopericardium suspected (ATLS); Direct sternal blow (assault, sports, low-velocity MVC) + new dyspnea/hypotension → blunt cardiac injury workup (Stafford Ann Thorac Surg 2017).

Objective

- No vitals, labs, or imaging entered for this encounter.

Assessment

**Cardiac tamponade — blunt chest trauma (MVA, fall, sternal blow)** (cardio.cardiac-tamponade.blunt-chest-trauma.v1).
Phenotype framing: Cardiac contusion (no tamponade) vs atrial/ventricular wall laceration (tamponade) vs coronary artery laceration / type-2 STEMI vs valve disruption vs septal rupture vs concurrent aortic isthmus injury (Stafford 2017; ATLS)
Scope: Blunt cardiac trauma + Beck triad / E-FAST pericardial fluid → traumatic hemopericardium with obstructive shock; ATLS primary survey first then activate cardiothoracic / trauma surgery (ATLS; ESC 2015 §Trauma)

No severity triggers fired against current inputs.

Plan

Regimen axis: **Blunt cardiac trauma → tamponade — damage-control resuscitation + bridge drainage + surgical repair (ATLS; EAST 2012; CRASH-2)**.
1. normal saline 500-1000 mL bolus then minimize per damage-control resuscitation IV rapid bolus then reassess (isotonic_crystalloid, first line) — Bridge preload until blood products available; minimize crystalloid in trauma to avoid dilutional coagulopathy (ATLS damage-control)
2. norepinephrine 0.05-0.5 µg/kg/min titrate to MAP ≥65 (or permissive 80-90 SBP per damage-control) IV continuous (vasopressor, rescue) — Bridge only — does not address obstruction; concurrent hemorrhagic shock often present (Roy JAMA 2007 PMID 17456823)
3. tranexamic acid 1 g IV over 10 min then 1 g over 8h IV bolus + infusion (antifibrinolytic, first line) — CRASH-2 PMID 20554319 — mortality benefit if administered within 3h of injury in trauma with significant hemorrhage; class evidence extends to traumatic hemopericardium
4. protamine 1 mg per 100 U residual UFH (max 50 mg single dose) IV slow IV over 10 min (heparin_antagonist, first line) — Reverse UFH; partial reversal of LMWH (~60%); ESC 2015; standard reversal in active bleeding
5. phytonadione 10 mg IV slow over 10 min IV single dose (vitamin_k, first line) — Vit K reverses warfarin synthesis defect; works over 6-12h (Bhatt Circulation 2018)
6. 4-factor prothrombin complex concentrate 25-50 U/kg based on INR IV single dose (pcc_4_factor, first line) — Immediate factor replacement for warfarin reversal in major bleeding (Bhatt Circulation 2018)
7. idarucizumab 5 g IV (2 × 2.5 g vials) IV single dose (monoclonal_antibody_dabigatran_reversal, comorbidity specific) — RE-VERSE AD (Pollack NEJM 2017 PMID 28793172) — complete dabigatran reversal within minutes
8. andexanet alfa low or high dose per agent + dose + timing per ANNEXA-4 protocol IV bolus + 2h infusion (modified_factor_xa_decoy, comorbidity specific) — ANNEXA-4 (Connolly NEJM 2019 PMID 30730782) — anti-FXa reversal
9. acetaminophen 650-1000 mg q6h scheduled PO/IV q6h (analgesic_non_opioid, add on) — NSAID avoidance in immediate post-trauma / post-op due to bleeding + AKI risk; opioids titrated per pain

Setting playbook (outpatient) — Long-term surveillance for late complications (post-cardiotomy syndrome, late valve disruption, late arrhythmia, constrictive pericarditis); anticoagulation management; cardiology follow-up; sports/return-to-work clearance (ESC 2015; Stafford 2017)
10. anticoagulation per indication warfarin or DOAC at maintenance dose PO per agent — Ongoing indication (Bhatt Circulation 2018)
11. beta-blocker if persistent post-blunt cardiac injury arrhythmia or rate-control indication metoprolol succinate 25-100 mg daily PO daily — Persistent arrhythmia indication (Standard rate control + cardioprotection)
12. colchicine + NSAID if late post-cardiotomy / post-pericardiotomy syndrome develops 0.5 mg BID + ibuprofen 600 mg TID × 1-3 mo PO BID + TID — Symptomatic post-cardiotomy syndrome (fever + pleuritic chest pain weeks-months post-op) (Imazio CIRCS NEJM 2015 PMID 26315582)

Non-pharmacologic actions:
- Cardiology follow-up q3 mo for first year then annually × 2 yr
- Cardiothoracic surgery follow-up per surgeon preference
- Cardiac rehab if appropriate
- Sports / return-to-work shared decision per cardiology + cardiothoracic

AVOID / contraindication checks:
- Positive_pressure_ventilation_AVOID_pre_drain_in_tamponade (ESC 2015) — but mandatory if airway compromise from concurrent injury → drain BEFORE intubation if possible
- Protamine_AVOID_severe_anaphylaxis_history_or_diabetic_on_nph_insulin_relative_contraindication (drug label)
- Andexanet_caution_with_prothrombotic_risk_thromboembolism_signal (Connolly NEJM 2019)
- Nsaid_AVOID_acute_post_trauma_bleeding_and_aki_risk (general damage control)
- Massive_crystalloid_AVOID_dilutional_coagulopathy_in_trauma (ATLS damage control)
- Tranexamic_acid_caution_late_administration_ge_3h_increases_mortality_signal (CRASH 2 PMID 20554319)

Monitoring

Regimen monitoring:
- continuous ECG during drainage and resuscitation (ESC 2015)
- art line BP pre and post drainage (Adler 2015)
- echo post drain immediate then q4-6h x 24h then q12-24h x 48h (rapid re-accumulation possible if persistent bleeding)
- serial hemoglobin q2h x 12h then q6h (concurrent hemorrhage track)
- serial troponin q6h x 24h (contusion + type-2 MI evolution)
- coagulation correction tracking inr ptt fibrinogen post reversal (Bhatt 2018)
- lactate q1h until normalized (perfusion adequacy)
- telemetry x 72h for arrhythmia surveillance (blunt cardiac injury — sinus tachy, AF, VT/VF)
- fluid analysis hematocrit compare to serum for active bleeding (ESC 2015)
- surgical site monitoring if window or thoracotomy performed

Setting (outpatient) monitoring:
- Echo at 1, 3, 6 mo then annually × 2 yr
- CBC + CRP if symptoms suggest recurrence
- INR per anticoagulation

Follow-up plan: Cardiology + trauma surgery shared follow-up; echo at 4-6 wk for valve / wall-motion follow-up; cardiac MRI at 4-6 wk if persistent symptoms or echo equivocal; sports/return-to-work clearance per cardiology (Stafford 2017)
- Close-out criterion: late-complication surveillance scheduled (valve disruption may present subacutely)

Monitoring phase: Re-accumulation surveillance (echo q4-6h × 24h then q12-24h × 48h); telemetry for blunt cardiac injury arrhythmia surveillance (sinus tachy + AF most common; VT/VF 2-3%); serial troponin q6h × 24h; serial Hb; surgical wound monitoring (ESC 2015; EAST 2012)

Disposition

Current setting: outpatient — Long-term surveillance for late complications (post-cardiotomy syndrome, late valve disruption, late arrhythmia, constrictive pericarditis); anticoagulation management; cardiology follow-up; sports/return-to-work clearance (ESC 2015; Stafford 2017)

Disposition criteria:
- No recurrence + stable hardware + anticoagulation stable + sports/work cleared → routine annual cardiology follow-up

Escalation triggers (move to higher acuity):
- Late post-cardiotomy syndrome → colchicine + NSAID per Imazio CIRCS
- Constrictive pericarditis pattern (persistent dyspnea + RH cath shows constrictive physiology) → CMR + cardiothoracic for pericardiectomy evaluation
- Late valve disruption (new dyspnea + new murmur + echo confirmation) → cardiothoracic for valve repair/replacement
- Recurrent tamponade → re-route to acute pathway
- New malignant arrhythmia → EP consult for ICD eligibility evaluation

Earlier-Return Triggers

Return-precaution thresholds (watch for):
- [LIFE_THREATENING] Blunt-mechanism injury + Beck triad (or near-Beck) + E-FAST positive pericardial fluid + SBP <90 → emergent drainage + surgical activation (ATLS; ESC 2015 §Trauma)
- [LIFE_THREATENING] Blunt-trauma cardiac arrest <10 min from arrival → ED resuscitative thoracotomy may be considered per WSES 2019 (PMID 31867050) — historical survival ~2% but >0
- [LIFE_THREATENING] High-mechanism MVC + traumatic hemopericardium + CT chest demonstrates aortic isthmus injury (intimal flap, pseudoaneurysm, contrast extravasation) → multidisciplinary trauma + cardiothoracic + vascular surgery (ATLS; ~25% co-occurrence in high-mechanism MVC)

Citations

- ATLS 10th edition (American College of Surgeons Committee on Trauma) §Thoracic Trauma + EAST 2012 Practice Management Guideline: Screening of Blunt Cardiac Injury (Clancy J Trauma Acute Care Surg 2012 PMID 23114492) + WSES 2019 position paper on resuscitative thoracotomy (Sartelli WJES 2019 PMID 31867050) + 2015 ESC pericardial diseases guideline §Trauma (Adler EHJ 2015 PMID 26320112) — all current as of 2026-05-15. [PMID:23114492](https://pubmed.ncbi.nlm.nih.gov/23114492/)
- Cited evidence (PMID 31867050) [PMID:31867050](https://pubmed.ncbi.nlm.nih.gov/31867050/)
- Cited evidence (PMID 26320112) [PMID:26320112](https://pubmed.ncbi.nlm.nih.gov/26320112/)
- Cited evidence (PMID 20554319) [PMID:20554319](https://pubmed.ncbi.nlm.nih.gov/20554319/)
- Cited evidence (PMID 17456823) [PMID:17456823](https://pubmed.ncbi.nlm.nih.gov/17456823/)

Last reconciled with current guidelines: 2026-05-15.
References
  • ATLS 10th edition (American College of Surgeons Committee on Trauma) §Thoracic Trauma + EAST 2012 Practice Management Guideline: Screening of Blunt Cardiac Injury (Clancy J Trauma Acute Care Surg 2012 PMID 23114492) + WSES 2019 position paper on resuscitative thoracotomy (Sartelli WJES 2019 PMID 31867050) + 2015 ESC pericardial diseases guideline §Trauma (Adler EHJ 2015 PMID 26320112) — all current as of 2026-05-15. — PMID:23114492
  • Cited evidence (PMID 31867050) — PMID:31867050
  • Cited evidence (PMID 26320112) — PMID:26320112
  • Cited evidence (PMID 20554319) — PMID:20554319
  • Cited evidence (PMID 17456823) — PMID:17456823