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Does a Higher Society of Thoracic Surgeons Score Predict Outcomes in Transfemoral and Alternative Access Transcatheter Aortic Valve Replacement?
Annals of Thoracic Surgery 2016 August
BACKGROUND: Nontransfemoral (non-TF) transcatheter aortic valve replacement (TAVR) is often associated with worse outcomes than TF TAVR. We investigated the relationship between increasing Society of Thoracic Surgeons (STS) predicted risk of mortality (PROM) score and observed mortality and morbidity in TF and non-TF TAVR groups.
METHODS: We reviewed 595 patients undergoing TAVR at Emory Healthcare between 2007 and 2014. Clinical outcomes were reported for 337 TF patients (57%) and 258 non-TF patients (43%). We created 3 STS PROM score subgroups: <8%, 8%-15%, and >15%. A composite outcome of postoperative events was defined as death, stroke, renal failure, vascular complications, or new pacemaker implantation.
RESULTS: TF patients were older (82.4 ± 8.0 vs 80.8 ± 8.7 years, p = 0.02), whereas the STS PROM was higher in non-TF patients (10.5% ± 5.3% vs 11.7% ± 5.7%, p = 0.01). Observed/expected mortality was less than 1.0 in all groups. The rate of the composite outcome did not differ between STS PROM subgroups in TF (p = 0.68) or non-TF TAVR (p = 0.27). One-year mortality was higher for patients with STS PROM >8% in the non-TF group; however, this difference was not observed in TF patients (p = 0.40).
CONCLUSIONS: As expected, non-TF patients were at a higher risk than TF patients for procedural morbidity and death. Although no differences were observed in 30-day deaths or morbidity in different STS PROM subgroups, those undergoing non-TF TAVR at a higher STS PROM (>8%) had higher 1-year mortality. When applicable, TF TAVR remains the procedure of choice in high- or extreme-risk patients undergoing TAVR.
METHODS: We reviewed 595 patients undergoing TAVR at Emory Healthcare between 2007 and 2014. Clinical outcomes were reported for 337 TF patients (57%) and 258 non-TF patients (43%). We created 3 STS PROM score subgroups: <8%, 8%-15%, and >15%. A composite outcome of postoperative events was defined as death, stroke, renal failure, vascular complications, or new pacemaker implantation.
RESULTS: TF patients were older (82.4 ± 8.0 vs 80.8 ± 8.7 years, p = 0.02), whereas the STS PROM was higher in non-TF patients (10.5% ± 5.3% vs 11.7% ± 5.7%, p = 0.01). Observed/expected mortality was less than 1.0 in all groups. The rate of the composite outcome did not differ between STS PROM subgroups in TF (p = 0.68) or non-TF TAVR (p = 0.27). One-year mortality was higher for patients with STS PROM >8% in the non-TF group; however, this difference was not observed in TF patients (p = 0.40).
CONCLUSIONS: As expected, non-TF patients were at a higher risk than TF patients for procedural morbidity and death. Although no differences were observed in 30-day deaths or morbidity in different STS PROM subgroups, those undergoing non-TF TAVR at a higher STS PROM (>8%) had higher 1-year mortality. When applicable, TF TAVR remains the procedure of choice in high- or extreme-risk patients undergoing TAVR.
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