Blood Pressure Management After Spine Surgery

Blood Pressure Targets

The American College of Surgeons and other medical societies recommend maintaining mean arterial pressure (MAP) above 85 mmHg for 5-7 days to optimize neurological outcomes in patients with spinal cord injury 1
For patients with spinal cord injury, maintaining MAP >85 mmHg for the first 5-7 days post-surgery is recommended to ensure adequate spinal cord perfusion 2, 1
For patients without spinal cord injury, maintaining systolic blood pressure between 90-160 mmHg is a reasonable therapeutic target, as recommended by the British Journal of Anaesthesia 3
For patients with pre-existing hypertension, blood pressure targets should be adjusted higher based on baseline values (approximately 70-75% of preoperative baseline at minimum), according to the British Journal of Anaesthesia and Anesthesiology (ASA) 3, 4

Continuous arterial pressure monitoring via arterial catheter is recommended for patients with spinal cord injury, as studies show MAP falls below target approximately 25% of the time without close monitoring, as stated by Praxis Medical Insights 1
For patients without spinal cord injury, the frequency of blood pressure monitoring should be determined by patient status and clinical context, according to the British Journal of Anaesthesia 3
Consider more frequent monitoring in patients with decreasing or increasing trends in blood pressure, as recommended by the British Journal of Anaesthesia 3
Consider more frequent monitoring in patients with significant blood loss during surgery, according to Anesthesiology (ASA) 4
Consider more frequent monitoring in patients with pre-existing hypertension, as stated by the British Journal of Anaesthesia and Praxis Medical Insights 3, 5

For hypotension (MAP <85 mmHg in SCI patients or systolic <90 mmHg in non-SCI patients), consider fluid administration before vasopressors in patients without contraindications, as recommended by Critical Care 6, 7
For patients requiring vasopressors, careful monitoring is essential, according to Critical Care 6

Patients with pre-existing hypertension require higher blood pressure targets to prevent end-organ damage, as stated by Anesthesiology (ASA) 4
Avoid hypotension in patients with traumatic brain injury or spinal cord injury, according to Critical Care and Neurosurgery 6, 2

Prolonged hypotension may lead to inadequate spinal cord perfusion and worse neurological outcomes, as stated by Praxis Medical Insights 1
Aggressive fluid resuscitation targeting normotension may increase the risk of complications including coagulopathy and multiorgan failure, according to Critical Care 6