Background:
Atherosclerotic cardiovascular disease (ASCVD) is highly prevalent in patients with severe aortic stenosis undergoing transcatheter aortic valve replacement (TAVR). Polyvascular disease (PVD), defined as involvement of ≥2 vascular beds (VB) i.e., coronary, cerebrovascular, or peripheral, portends a poor prognosis in patients with ASCVD; however, data on the association of PVD with outcomes of patients undergoing TAVR are limited.
Methods:
The Society of Thoracic Surgeons and the American College of Cardiology Transcatheter Valve Therapy (STS/ACC TVT) Registry was analyzed to identify patients who underwent TAVR from November 2011 through March 2022. Exposure of interest was PVD. Primary outcome was all-cause mortality. Secondary outcomes included major vascular complications, major/life-threatening bleeding, myocardial infarction (MI), transient ischemic attack (TIA)/stroke, and valve and non-valve related readmissions. Outcomes were assessed at 30 days and 1 year.
Results:
Of 443,790 patients who underwent TAVR, PVD was present in 150,823 (34.0%) [111,425 (25.1%) with 2VB-PVD and 39,398 (8.9%) with 3VB-PVD]. On multivariable analysis, PVD was associated with increased all-cause mortality at 1 year (hazard ratio [HR] 1.17; 95% CI, 1.14-1.20). There was an incremental increase in 1-year mortality with increasing number of VB involved (no PVD [ref.], 2VB-PVD, HR 1.12; 95% CI, 1.09-1.15, and 3VB-PVD, HR 1.31; 95% CI, 1.26-1.36). Patients with vs. without PVD had higher rates of major vascular complications, major/life-threatening bleeding, TIA/stroke, and non-valve related readmissions at 30 days and 1 year.
Conclusions:
PVD is associated with worse outcomes after TAVR, and the risk is highest in patients with 3VB-PVD.