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Cardiothoracic SurgeryManagement

Temporary Mechanical Circulatory Support (EACTS/STS/AATS 2025)

Temporary Mechanical Circulatory Support (EACTS/STS/AATS 2025): Postcardiotomy Cardiogenic Shock → Initial Assessment → Shock Severity? → IABP (Intra-Ao...

Pathway Overview

12 steps

Algorithm Steps

12 total

  1. 01Start

    Postcardiotomy Cardiogenic Shock

    Failure to wean from CPB or post-op hemodynamic deterioration

  2. 02Action

    Initial Assessment

    Evaluate severity and optimize medical therapy

    • Confirm adequate surgical repair
    • Optimize preload (CVP, PCWP)
    • Optimize afterload (MAP, SVR)
    • Maximize inotropes: dobutamine, milrinone, epinephrine
    • Consider echo to assess function
    • Rule out tamponade, graft failure
  3. 03Decision

    Shock Severity?

    Assess level of hemodynamic support needed

    • MODERATE: CI 1.8-2.2, lactate 2-4, single inotrope
    • SEVERE: CI <1.8, lactate >4, multiple inotropes
    • REFRACTORY: worsening despite maximum support
  4. 04Action

    IABP (Intra-Aortic Balloon Pump)

    First-line for moderate support

    • INDICATIONS:
    • • Moderate shock
    • • Ischemic cardiomyopathy
    • • Bridge during optimization
    • CONTRAINDICATIONS:
    • • Severe aortic regurgitation
    • • Aortic dissection
    • • Severe PAD
    • Provides 10-15% increase in CO
    • Reduces afterload, augments diastolic pressure
  5. 05Action

    Ongoing Management

    Monitor and optimize on support

    • Daily echo to assess recovery
    • Lactate clearance
    • End-organ function (renal, hepatic)
    • Anticoagulation (target ACT/aPTT)
    • Hemolysis monitoring (LDH, plasma-free Hb)
    • Limb perfusion (distal perfusion catheter for femoral)
  6. 06Decision

    Weaning Assessment

    Daily evaluation for recovery

    • Criteria for weaning trial:
    • • Improving echo (EF, contractility)
    • • Lactate <2 mmol/L
    • • Stable on low/no inotropes
    • • Adequate MAP at reduced flow
    • • Improving end-organ function
  7. 07Outcome

    Myocardial Recovery

    Wean and decannulate

  8. 08Decision

    No Recovery - Bridge Options?

    Consider advanced therapies

    • Bridge to transplant (BTT)
    • Bridge to durable LVAD
    • Bridge to decision (BTD)
    • Palliation/withdrawal if no options
  9. 09Action

    Impella (Percutaneous LVAD)

    For LV-predominant failure

    • INDICATIONS:
    • • Severe LV dysfunction, CI <1.8
    • • Need for LV unloading
    • • High-risk PCI support
    • DEVICES:
    • • CP: up to 4.3 L/min
    • • 5.0/5.5: up to 5+ L/min (surgical)
    • CONTRAINDICATIONS:
    • • Mechanical aortic valve
    • • LV thrombus
    • • Severe AS
    • • Severe PAD
  10. Path rejoins step 05Shared downstream outcome
  11. 10Action

    VA-ECMO / ECLS

    For biventricular or refractory failure

    • INDICATIONS:
    • • Biventricular failure
    • • Refractory cardiogenic shock
    • • Cardiac arrest (E-CPR)
    • • Failure of other devices
    • • Need for respiratory support
    • Provides 3-7 L/min full circulatory support
    • CONFIGURATION:
    • • Peripheral (femoral) or central cannulation
    • • Consider LV vent if no ejection
  12. 11Action

    LV Unloading Strategy

    Required if no LV ejection on VA-ECMO

    • Options:
    • • IABP (augments coronary flow)
    • • Impella (active LV drain)
    • • Surgical LV vent
    • • Atrial septostomy
    • Prevents LV distension and pulmonary edema
  13. Path rejoins step 05Shared downstream outcome
  14. Path rejoins step 05Shared downstream outcome
  15. 12Warning

    ⚠️ Rule Out First

    Before MCS, ensure: adequate surgical repair, no tamponade, no graft occlusion, no protamine reaction

Guideline Source

EACTS/STS/AATS Guidelines on Temporary MCS in Adult Cardiac Surgery

Clinical Safety Information

Clinical Decision Support — Not a Substitute for Clinical Judgment

Individual patient factors may require deviation from these recommendations.

Known Limitations

  • Device availability varies by institution
  • Requires specialized team for insertion and management
  • Specific device selection depends on local expertise
  • Does not replace clinical judgment for complex cases

Applicable Regions

USEU
Version 1Next review: 2027-01-11

Frequently Asked Questions

What is the Temporary Mechanical Circulatory Support (EACTS/STS/AATS 2025)?

The Temporary Mechanical Circulatory Support (EACTS/STS/AATS 2025) is a management clinical algorithm for Cardiothoracic Surgery. It provides a structured decision tree to guide clinical decision-making, based on EACTS/STS/AATS Guidelines on Temporary MCS in Adult Cardiac Surgery.

What guideline is the Temporary Mechanical Circulatory Support (EACTS/STS/AATS 2025) based on?

This algorithm is based on EACTS/STS/AATS Guidelines on Temporary MCS in Adult Cardiac Surgery (DOI: 10.1093/ejcts/ezaf330).

What are the limitations of the Temporary Mechanical Circulatory Support (EACTS/STS/AATS 2025)?

Known limitations include: Device availability varies by institution; Requires specialized team for insertion and management; Specific device selection depends on local expertise; Does not replace clinical judgment for complex cases. Individual patient factors may require deviation from these recommendations.

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