Mean arterial pressure (MAP) A common method used to estimate the MAP is the following formula: * MAP = DP + 1/3(SP – DP) or * MAP = DP + 1/3(PP) Where DP is the diastolic blood pressure, SP is the systolic blood pressure, and PP is the pulse pressure. To perfuse vital organs requires the maintenance of a minimum MAP of 60 mmHg. If MAP drops below this point for an extended period, end-organ manifestations such as ischemia and infarction can occur. If the MAP drops significantly, blood will not be able to perfuse cerebral tissues, there will be a loss of consciousness, and neuronal death will quickly ensue. Satyendra Dhar MD, @DharSaty #MAP #meanarterialpressure #pulsepressure #sbp #dbp #perfusion #ischemia
