Blood Pressure Management After Cardiac Catheterization

Target Blood Pressure Parameters

The American Heart Association recommends maintaining a systolic blood pressure >90 mmHg or mean arterial pressure ≥60-65 mmHg to reduce the risk of cardiovascular, cerebrovascular, and renal events, as well as mortality 1, 2
Patient-specific postoperative blood pressure target ranges should be created based on baseline preoperative blood pressure measurements and clinical context, with a target systolic pressure >90 mmHg and <160 mmHg for patients with normal baseline blood pressure 3, 4
For mean arterial pressure (MAP), maintain ≥60-65 mmHg, with observational data suggesting maintaining intraoperative systolic pressures >70% of preoperative baseline for patients with abnormal baseline values 3, 4, 5

The British Journal of Anaesthesia recommends determining the frequency of postoperative blood pressure surveillance based on patient status and clinical context, with increased frequency for patients with decreasing or increasing trends in blood pressure, those requiring tighter blood pressure control, or high-risk cardiac patients 3, 5
Continuous blood pressure monitoring is recommended when possible to reduce the severity and duration of hypotension compared to intermittent monitoring 5

The American College of Cardiology recommends promptly treating hypotension (MAP <60-65 mmHg or SBP <90 mmHg) in the post-cardiac catheterization period, as prolonged hypotension is associated with increased risk of myocardial injury, acute kidney injury, and mortality 1, 2, 4
Treatment should be based on the presumed underlying cause, including vasodilation, hypovolemia, bradycardia, or low cardiac output, with corresponding treatments such as vasopressors, fluid boluses, chronotropic agents, or inotropic support 5, 6

Postoperative hypertension can occur due to various factors, including pain, inflammation, anxiety, hypoxia, volume overload, urinary retention, or withdrawal of chronic antihypertensive medications, and increases the risk for myocardial ischemia/infarction, heart failure, cerebral ischemia, and dysrhythmias 6
Suggested trigger values for assessment and intervention are systolic pressure >160 mmHg (or >140% of baseline, whichever is lower), with careful treatment to avoid subsequent hypotension 3, 5

The American Heart Association recommends restarting chronically taken oral antihypertensive medications as soon as clinically reasonable to avoid complications from postoperative hypertension, with caution advised when continuing antihypertensive therapy in certain patient populations 2, 6
Delaying resumption of preoperative ACE inhibitors/ARBs has been associated with increased 30-day mortality risk, and caution is advised in patients with low or low-normal perioperative blood pressures, older adults, or those at high risk for perioperative hypotension 2, 6

The British Journal of Anaesthesia recommends transferring patients who maintain stable blood pressure within target ranges from PACU or ICU/HDU to the ward, and considering transfer to a higher level of care for patients with persistent hypotension or hypertension despite appropriate initial therapies 3, 7