Could We Predict POAF With a Simple Ambulatory Oscillometry Evaluating Aortic Stiffness?

Area of Science:

• Cardiology
• Vascular Medicine
• Cardiac Surgery

Background:

• Postoperative atrial fibrillation (POAF) is a common complication after coronary artery bypass grafting (CABG).
• Aortic stiffness is an emerging risk factor for cardiovascular events.
• The relationship between aortic stiffness and POAF requires further investigation.

Purpose of the Study:

• To investigate the association between aortic stiffness and the incidence of POAF in patients undergoing CABG.
• To identify predictors of POAF among measures of aortic stiffness.

Main Methods:

• A prospective study involving 110 patients undergoing elective isolated CABG.
• Aortic stiffness was assessed preoperatively using noninvasive oscillometric measurements, including pulse wave velocity (PWV) and pulse pressure (PP).
• Patient characteristics and outcomes, including POAF development, were compared between groups.

Main Results:

• POAF occurred in 29.1% of patients.
• Patients with POAF were older and had a higher prevalence of chronic obstructive pulmonary disease (COPD).
• Elevated peripheral and central pulse pressures (PP) and higher pulse wave velocity (PWV) were significantly associated with POAF. PWV and PP were independent predictors of POAF.

Conclusions:

• Aortic stiffness, quantified by PWV and PP, is a significant predictor of POAF following CABG.
• These easily measurable parameters may aid in identifying patients at increased risk for POAF, facilitating timely intervention.