Introduction
Dr. Elsisy and colleagues present a comprehensive retrospective review
of all patients (32,421) over a 26-year period at the Mayo clinic that
underwent open heart surgery. They compared outcomes for nonagenarians
and octogenarians, with a regression analysis to evaluate predictors of
late mortality in nonagenarians. They determined that 0.4% (143) were
nonagenarians and 12.6% (4077) of patients were octogenarians. Of
nonagenarians, surgical operations were CABG at 15.7%, CABG-Valve at
39.6%, and isolated Valve at 44.8%. Operative mortality was similar
between nonagenarians (6%) and octogenarians (4.6%) and hospital
complications were comparable between the two groups. While this patient
cohort is a highly selected population of nonagenarians and
octogenarians with an overall preoperative STS predicted mortality of
1.6% and 1.9% respectively, their operative mortality of 6% is the
lowest reported mortality for nonagenarians over the past two decades.
As TAVR has emerged in the recent era between 2011 and 2019, the
incidence of SAVR in the Mayo group of nonagenarians and octogenarians
declined to 0.3%, with all of those SAVRs done in 2011. This brought
operative mortality of SAVR down to 4% from 1993 to 2011, with
comparable TAVR mortality of 1% from 2011 to 2019 in reported group.
The STS-PROM risk scores underrepresented the 30-day mortality in
nonagenarians in this patient cohort.1