Long-Term Hemodynamic Effects After Carotid Artery Revascularization

Area of Science:

• Vascular Surgery
• Cardiology
• Nephrology

Background:

• The carotid body's baroreceptor is crucial for hemodynamic regulation.
• Carotid endarterectomy (CEA) and carotid artery stenting (CAS) can disrupt baroreceptor function, leading to hemodynamic instability.
• Understanding the long-term hemodynamic effects of CEA and CAS is essential for patient management.

Purpose of the Study:

• To evaluate the long-term effects of CEA and CAS on blood pressure (BP), heart rate (HR), and antihypertensive medication use.
• To identify predictors for changes in antihypertensive medication requirements after carotid revascularization procedures.

Main Methods:

• Retrospective chart review of 289 patients undergoing CEA or CAS (2009-2015).
• Analysis of baseline demographics, comorbidities, and operative details.
• Evaluation of BP, HR, and antihypertensive medication needs at 3, 6, 12, 24, and 36 months post-procedure.

Main Results:

• Systolic BP and HR remained stable postoperatively for both CAS and CEA groups.
• A significant reduction in antihypertensive medications was observed in the CAS cohort during the first postoperative year (P < .01).
• CAS and baseline use of multiple antihypertensive medications predicted a reduction in medication needs post-procedure.

Conclusions:

• While BP and HR are stable post-CEA and CAS, CAS is associated with a reduced need for antihypertensive medications in the first year.
• Patients undergoing CAS, especially those on multiple baseline medications, require close BP monitoring and assessment for medication reduction.
• Carotid revascularization impacts long-term hemodynamic management and medication requirements.