Immediate Vasopressor Support for Post-ROSC Hypotension

Critical Hemodynamic Management

The American Heart Association recommends avoiding additional cold IV fluid boluses, as rapid infusion of large volumes of cold fluids increases risk of cardiac re-arrest and pulmonary edema without mortality benefit 1
The American College of Cardiology suggests that the 2L NS already given is adequate volume resuscitation; further hypotension reflects vasodilatory shock requiring vasopressors, not hypovolemia 2

The American Heart Association indicates that emergency cardiac catheterization is reasonable for select comatose adult patients after out-of-hospital cardiac arrest of suspected cardiac origin without ST elevation, particularly when electrically or hemodynamically unstable 6, 5
The American College of Cardiology recommends emergency catheterization, which improves hospital mortality and neurologically favorable survival in this population, based on very-low-quality evidence from 513 patients 3, 4
The American Heart Association advises not to delay catheterization for hemodynamic optimization—proceed to cath lab while simultaneously managing hypotension with vasopressors 3, 4

The American Heart Association recommends maintaining ventilation at 10-12 breaths/min targeting PETCO2 35-40 mmHg or PaCO2 40-45 mmHg, and avoiding hyperventilation, which decreases cardiac output and reduces cerebral blood flow 7
The American Thoracic Society suggests titrating FiO2 to maintain SpO2 94-98% once able, and avoiding both hypoxemia and hyperoxemia 7

The American Heart Association recommends initiating targeted temperature management immediately for comatose post-arrest patients, with a target temperature of 32-34°C for 12-24 hours 2, 7
The American College of Cardiology suggests that targeted temperature management can be safely combined with emergency cardiac catheterization and should not delay PCI 3, 4