Mean Arterial Pressure (MAP)
Calculates mean arterial pressure
Min 0 – Max 400
Min 0 – Max 200
Reference
Summary
Blood pressure benchmarks are linked to improve outcomes in several conditions, to include sepsis, stroke, trauma, hypertensive emergencies, and intracranial bleed. Clinical Guidelines often use either systolic blood pressure (SBP) or mean arterial pressure (MAP) as a blood pressure goal. However, several guidelines recommend a blood pressure adjustment based on MAP rather than SBP when there is a concern for appropriate organ perfusion. An example includes the Surviving Sepsis Campaign 2021 Adult Guidelines.
.Summary
The mean arterial pressure (MAP) is derived from a patient's systolic blood pressure (SBP) and diastolic blood pressure (DBP). MAP is often recommended as a surrogate indicator of blood flow and may be a better indicator of tissue perfusion than SBP since two thirds of the cardiac cycle is spent in diastole.
Mean Arterial Pressure (MAP) = 1/3 * SBP + 2/3 * DBP
Goals & Management (Surviving Sepsis Campaign Guidelines Committee)
- A MAP ≥ 60 mm Hg: Required to maintain adequate tissue perfusion.
- A MAP ≥ 65 mm Hg: Recommended in the context of severe sepsis and septic shock.
Literature
- The highs and lows of blood pressure: toward meaningful clinical targets in patients with shock. Crit Care Med. 2014 May;42(5):1241-51. — Magder SA.
- Systolic and Diastolic Blood Pressure, Pulse Pressure, and Mean Arterial Pressure as Predictors of Cardiovascular Disease Risk in Men. Hypertension. 2000 (36) 801-807. — Sesso HD, Stampfer MJ, Rosner B, Hennekens CH, Gaziano JM, Manson JE, Glynn RJ.
- Surviving Sepsis Campaign: International Guidelines for Management of Sepsis and Septic Shock 2021. Critical Care Medicine 49(11):p e1063-e1143, November 2021. — Evans L, Rhodes A, Alhazzani W, et al.
- Jennifer Glen , DNP, FNP-BC — EVAL Health, Chief Medical Officer