<h2 class="section-title u-h3 u-margin-l-top u-margin-xs-bottom">Abstract</h2> <div id="as0005"> <h3 class="u-h4 u-margin-m-top u-margin-xs-bottom" id="st0010">Objectives</h3> <p id="sp0095">To compare transcatheter aortic valve replacement (TAVR) with surgical aortic valve replacement (SAVR) for patients in shock.</p> </div> <div id="as0010"> <h3 class="u-h4 u-margin-m-top u-margin-xs-bottom" id="st0015">Background</h3> <p id="sp0100">There are minimal data on the clinical and echocardiographic outcomes for patients in shock that undergo TAVR and no data comparing these outcomes to similar patients undergoing SAVR.</p> </div> <div id="as0015"> <h3 class="u-h4 u-margin-m-top u-margin-xs-bottom" id="st0020">Methods</h3> <p id="sp0105">This is a single center, retrospective cohort study of patients having Society of Thoracic Surgeons (STS)-defined urgent or emergent AVR for aortic stenosis with clinical signs and symptoms of shock. Inclusion criteria were based on the Society of Cardiovascular Angiography & Interventions (SCAI) shock consensus statement and included: the need for inotropic or vasopressor agents, mechanical ventilation, continuous renal replacement therapy or newly initiated hemodialysis, and/or utilization of mechanical hemodynamic support. Clinical and echocardiographic outcomes for TAVR and SAVR were compared.</p> </div> <div id="as0020"> <h3 class="u-h4 u-margin-m-top u-margin-xs-bottom" id="st0025">Results</h3> <p id="sp0110">Thirty-seven patients met the inclusion criteria for this study (17 TAVR, 20 SAVR). TAVR patients had a higher STS Predicted Risk of Mortality (PROM) score of 22.3% compared to 11.8% for SAVR patients (<em>p</em> = 0.001). No significant differences were found in baseline echocardiographic results. TAVR procedures required less procedure room time (185.9 min TAVR, 348.5 min SAVR,<span> </span><em>p</em> < 0.001) and fewer intraoperative packed red blood cell (pRBC) transfusions (0.2 units TAVR, 3.4 units SAVR,<span> </span><em>p</em> < 0.001). TAVR patients also had lower rates of prolonged postoperative ventilation compared to SAVR patients (38.5% TAVR, 75.0% SAVR,<span> </span><em>p</em> = 0.047). TAVR and SAVR had similar rates of mortality at discharge (2 TAVR, 1 SAVR,<span> </span><em>p</em> = 0.584), 30-days (2 TAVR, 1 SAVR,<span> </span><em>p</em> = 0.584), and 1-year (8 TAVR, 5 SAVR,<span> </span><em>p</em> = 0.149).</p> </div> <div id="as0025"> <h3 class="u-h4 u-margin-m-top u-margin-xs-bottom" id="st0030">Conclusions</h3> <p id="sp0115">Despite a higher risk TAVR group, patients in shock undergoing either TAVR or SAVR have similar 30-day mortality. At one year, SAVR patients have a numerically better, though not statistically significant, survival. These findings support the use of TAVR for patients in shock with aortic stenosis.</p> </div>