Air Embolism - Venous
ADU-01
Diagnosis
Decreased end-tidal CO2, decreased oxygen saturation, hypotension
Call for help
- Ask: "Who will be the crisis manager?"
- Crisis manager designates checklist reader
Turn FiO2 to 100%
- Turn off nitrous oxide
Stop source of gas entry
- Fill wound with irrigation and/or apply bone wax to bone edges
- Lower surgical site below level of heart if possible
- Search for entry point (including open venous lines)
- Desufflate if concern for CO2 embolism
Support hemodynamics
- Escalate vasopressor support as needed
- Turn down anesthetic agents
Consider...
- Positioning patient with left side down
- Continue monitoring during positioning
- Removing PEEP in patients with PFO at risk for paradoxical embolism
- Avoid spontaneous ventilation; paralyze as needed
- Using ETCO2 to monitor progression and resolution of embolism or for assessment of cardiac output
- If diagnosis is unclear, call for TEE
- If ongoing hemodynamic instability, call for ECMO or cardiopulmonary bypass
- Positioning patient with left side down
Continuing care
- Consider hyperbaric oxygen treatment within 6 hours for evidence of paradoxical embolism
DIFFERENTIAL diagnosis
- Amniotic Fluid Embolism
- Cement Embolism
- Venous Thromboembolism/Pulmonary Embolism
- Non-embolic causes of hypotension (ADU-10)
- Non-embolic causes of hypoxia (ADU-11)
Critical CHANGES
If PEA develops, go to ADU-04