Management of Post-Cardiac Arrest Syndrome
The recommended management for post-cardiac arrest syndrome requires a comprehensive, structured, integrated, multidisciplinary system of care implemented consistently to optimize survival and neurological recovery. 1, 2
Initial Objectives
- Transport patients to an appropriate hospital with a comprehensive post-cardiac arrest treatment system of care that includes acute coronary interventions, neurological care, goal-directed critical care, and temperature management 1
- Optimize cardiopulmonary function and vital organ perfusion after return of spontaneous circulation (ROSC) 1
- Identify and treat the precipitating causes of the arrest to prevent recurrent arrest 1
- Transport in-hospital post-cardiac arrest patients to an appropriate critical care unit capable of providing comprehensive post-cardiac arrest care 1
Respiratory Management
- Avoid both hypoxia and hyperoxia by targeting arterial oxygen saturation of 94% but less than 100% 1, 3
- Suggest using 100% inspired oxygen initially until arterial oxygen saturation can be measured reliably 1
- Maintain PaCO₂ within normal physiologic range (35-40 mmHg) as part of post-ROSC bundle of care 1, 2
- Optimize mechanical ventilation to minimize lung injury 1
- Elevate head of bed 30° if tolerated to reduce cerebral edema, aspiration, and ventilator-associated pneumonia 2
Hemodynamic Management
- Consider hemodynamic goals (e.g., mean arterial pressure, systolic blood pressure) as part of any bundle of post-resuscitation interventions 1
- Use vasopressors such as norepinephrine and dobutamine as first-line treatment for post-cardiac arrest shock 3
- Implement protocolized hemodynamic optimization and multidisciplinary early goal-directed therapy protocols 1
- Provide intravascular volume expansion, vasoactive and inotropic drugs as needed to support blood flow and ventilation 1
Temperature Management
- Control body temperature to optimize survival and neurological recovery 1
- Select and maintain a constant target temperature between 32°C and 36°C for those patients in whom temperature control is used 1
- Recommend targeted temperature management (TTM) for patients with initial shockable rhythm who remain unresponsive after out-of-hospital cardiac arrest 1
- Suggest TTM for patients with initial non-shockable rhythm who remain unresponsive after out-of-hospital cardiac arrest 1
- Suggest TTM for adults with in-hospital cardiac arrest with any initial rhythm who remain unresponsive after ROSC 1
- If TTM is used, suggest a duration of at least 24 hours 1
- Recommend against routine use of prehospital cooling with rapid infusion of large volumes of cold intravenous fluid immediately after ROSC 1
- Suggest prevention and treatment of fever in persistently comatose adults after completion of TTM 1
Coronary Management
- Identify and treat acute coronary syndromes (ACS) 1
- Triage patients with suspected ACS to a facility with reperfusion capabilities 1
- Consider early invasive coronary angiography to identify and treat coronary artery obstructive disease 3, 4
- Implement systems of care for patients with ST-elevation myocardial infarction (STEMI) 1
- Utilize prehospital 12-lead ECGs with transmission or interpretation by EMS providers and advance notification of the receiving facility 1
Neurological Management
- Monitor for seizures using continuous electroencephalography (EEG) 3, 5
- Recommend treatment of seizures but suggest against routine seizure prophylaxis 1
- Suggest no modification of standard glucose management protocols 1
- In comatose post-cardiac arrest patients treated with TTM, suggest that clinical criteria alone not be used to estimate prognosis after ROSC 1
- Suggest prolonging observation of clinical signs when interference from residual sedation or paralysis is suspected 1
- Recommend that the earliest time to prognosticate a poor neurologic outcome is 72 hours after ROSC 1
- Suggest using multiple modalities of testing (clinical examination, neurophysiologic measures, imaging, or blood markers) to estimate prognosis 1
Multiorgan Support
- Reduce the risk of multiorgan injury and support organ function if required 1
- Anticipate, treat, and prevent multiple organ dysfunction 1, 6
- Implement glycemic control and metabolic management for favorable neurological outcomes 3, 5
- Monitor for and manage acute kidney injury, which is essential for survival and good neurological outcome 3
Prognostication and Long-term Care
- Objectively assess prognosis for recovery 1
- Ensure prognostic assessment in the setting of hypothermia involves experts qualified in neurologic assessment 1
- Assist survivors with rehabilitation services when required 1
- Recommend that all patients who have restoration of circulation after CPR and who subsequently progress to death be evaluated as potential organ donors 1
Common Pitfalls and Caveats
- Avoid excessive ventilation as it can impede venous return and decrease cardiac output 2
- Do not rely solely on clinical criteria for prognostication, especially during or shortly after TTM 1
- Avoid using end-tidal carbon dioxide threshold or cutoff values alone to predict mortality or to decide to stop a resuscitation attempt 1
- Do not make early prognostic decisions that may lead to premature withdrawal of life-sustaining therapy 1
- Recognize that withdrawal of life-sustaining therapy is the most frequent cause of death (approximately 50%) in patients with a prognosticated bad outcome 1