Which vasopressor is commonly used to support blood pressure after ROSC if hypotension persists?

Which vasopressor is commonly used to support blood pressure after ROSC if hypotension persists?

• A. Norepinephrine infusion to maintain MAP ≥65 mmHg
• B. Epinephrine infusion
• C. Dopamine infusion
• D. Phenylephrine

Answer: (A)

When blood pressure stays low after return of spontaneous circulation, the goal is to restore adequate perfusion by increasing mean arterial pressure. Norepinephrine is the vasopressor of choice because it provides strong alpha-adrenergic vasoconstriction, which raises systemic vascular resistance and thus MAP, helping to improve cerebral and coronary perfusion. It also offers some beta-1 support to modestly help cardiac output without causing the excessive tachycardia or high myocardial oxygen demand seen with other agents. Epinephrine, while useful in arrest scenarios, tends to produce more beta-adrenergic effects such as tachycardia and increased myocardial work, which can be detrimental after ROSC when the heart is vulnerable. Dopamine has a higher risk of arrhythmias and unpredictable dosing responses. Phenylephrine is a pure alpha-agonist that raises pressure by vasoconstriction but can reduce cardiac output, especially in patients with compromised heart function, making it less ideal for persistent hypotension after ROSC. Titrate norepinephrine to achieve a MAP of about 65 mmHg or higher, while also addressing volume status and reversible causes of shock to support overall perfusion.

When blood pressure stays low after return of spontaneous circulation, the goal is to restore adequate perfusion by increasing mean arterial pressure. Norepinephrine is the vasopressor of choice because it provides strong alpha-adrenergic vasoconstriction, which raises systemic vascular resistance and thus MAP, helping to improve cerebral and coronary perfusion. It also offers some beta-1 support to modestly help cardiac output without causing the excessive tachycardia or high myocardial oxygen demand seen with other agents.

Epinephrine, while useful in arrest scenarios, tends to produce more beta-adrenergic effects such as tachycardia and increased myocardial work, which can be detrimental after ROSC when the heart is vulnerable. Dopamine has a higher risk of arrhythmias and unpredictable dosing responses. Phenylephrine is a pure alpha-agonist that raises pressure by vasoconstriction but can reduce cardiac output, especially in patients with compromised heart function, making it less ideal for persistent hypotension after ROSC.

Titrate norepinephrine to achieve a MAP of about 65 mmHg or higher, while also addressing volume status and reversible causes of shock to support overall perfusion.