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Abstract
Transapical (TA) aortic valve replacement was an integral part of the Placement of Transcatheter Aortic Valves (PARTNER) trial. Enrollment during the randomized trial included 104 transapical (premarket approval TA [PMA-TA]) and 92 surgical aortic valve replacements (SAVR) within the TA cohort. On completion of the trial, enrollment continued in a nonrandomized continued access (NRCA) program. We compared the outcomes of NRCA-TA procedures with those of PMA-TA and SAVR.In 22 centers, 975 patients underwent TA aortic valve replacement as part of the NRCA registry. Inclusion and exclusion criteria were unchanged from the previously reported PARTNER trial. All patients were followed up for at least 1 year.Thirty-day or in-hospital mortality was 8.8% for the NRCA-TA cohort, compared with 10.6% and 12.0% for the PMA-TA and SAVR patients, respectively (p = 0.54). One-year mortality in the NRCA-TA cohort was 22.1%, not significantly lower than the mortality in PMA-TA and SAVR patients at 29.0% and 25.3%, respectively (p = 0.27). Thirty-day or in-hospital stroke was 2.2% among NRCA-TA patients in contrast to the 6.7% stroke rate observed in the PMA-TA group and 5.4% in SAVR patients (p = 0.008). Lower rates of neurologic adverse events in the NRCA-TA group persisted at 1 year compared with the PMA-TA and SAVR patients.Among the 975 patients in the NRCA-TA cohort, rates of major outcomes including death and stroke compared favorably with outcomes of PMA-TA and SAVR patients enrolled in the PARTNER trial. This trend toward improved outcomes may be attributed to improved patient selection, individual centers surmounting the procedural learning curve, and refinements in surgical technique.
View details for DOI 10.1016/j.athoracsur.2013.05.093
View details for Web of Science ID 000327794000033
View details for PubMedID 23968764