000 04854nam a22008777a 4500
008 181010s20192019 xxu||||| |||| 00| 0 eng d
022 _a1522-1946
040 _aOvid MEDLINE(R)
099 _a30280469
245 _aRole of contractile reserve as a predictor of mortality in low-flow, low-gradient severe aortic stenosis following transcatheter aortic valve replacement.
251 _aCatheterization & Cardiovascular Interventions. 93(4):707-712, 2019 03 01.
252 _aCatheter Cardiovasc Interv. 93(4):707-712, 2019 03 01.
252 _zCatheter Cardiovasc Interv. 2018 Oct 02
253 _aCatheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions
260 _c2019
260 _fFY2019
265 _saheadofprint
265 _sppublish
266 _d2018-10-10
268 _aCatheterization & Cardiovascular Interventions. 2018 Oct 02
501 _aAvailable online from MWHC library: 1996 - present, Available in print through MWHC library: 1996 - 2006
520 _aBACKGROUND: Patients with severe AS, left ventricular dysfunction, and low transaortic gradient are at high risk for mortality during surgical aortic valve replacement (SAVR). Furthermore, patients without CR have been shown to have perioperative mortality comparable to that of patients treated medically for severe AS.
520 _aCONCLUSION: In patients with low-flow, low-gradient severe AS undergoing TAVR, the presence or absence of CR does not predict all-cause mortality at 30 days or 1 year.
520 _aCopyright (c) 2018 Wiley Periodicals, Inc.
520 _aMETHODS: We retrospectively analyzed patients who underwent TAVR with a diagnosis of low-gradient severe AS (mean transvalvular aortic gradient < 40 mmHg, LVEF < 50%, and AVA <= 1.0 cm<sup>2</sup> or AVAi <= 0.6 cm<sup>2</sup> ) and who had a pre-TAVR dobutamine stress echocardiogram (DSE). Patients were stratified by the presence or absence of CR, defined as an increase in stroke volume >= 20% during DSE.
520 _aOBJECTIVES: The aim of this study was to determine the prognostic value of contractile reserve (CR) at baseline in patients with low-flow, low-gradient severe aortic stenosis (AS) undergoing transcatheter aortic valve replacement (TAVR).
520 _aRESULTS: From 2008 to 2016, 61 patients with low-gradient severe AS underwent TAVR and had pre-TAVR DSE. CR was present in 31 patients (51%) and absent in 30 (49%). There was no significant difference between the two groups in baseline demographics, medical history, access site, or types of valves. All-cause mortality was similar in both groups at 30 days (13% with CR vs 10% without CR, P = 1.00) and 1 year (29% with CR vs 33% without CR, HR 1.20, 95% CI 0.49-2.96, P = 0.69).
546 _aEnglish
650 _a*Aortic Valve Stenosis/su [Surgery]
650 _a*Aortic Valve/su [Surgery]
650 _a*Hemodynamics
650 _a*Myocardial Contraction
650 _a*Transcatheter Aortic Valve Replacement/mo [Mortality]
650 _a*Ventricular Dysfunction, Left/pp [Physiopathology]
650 _a*Ventricular Function, Left
650 _aAged
650 _aAged, 80 and over
650 _aAortic Valve Stenosis/dg [Diagnostic Imaging]
650 _aAortic Valve Stenosis/mo [Mortality]
650 _aAortic Valve Stenosis/pp [Physiopathology]
650 _aAortic Valve/dg [Diagnostic Imaging]
650 _aAortic Valve/pp [Physiopathology]
650 _aDatabases, Factual
650 _aFemale
650 _aHumans
650 _aMale
650 _aRecovery of Function
650 _aRetrospective Studies
650 _aRisk Assessment
650 _aRisk Factors
650 _aSeverity of Illness Index
650 _aStroke Volume
650 _aTime Factors
650 _aTranscatheter Aortic Valve Replacement/ae [Adverse Effects]
650 _aTreatment Outcome
650 _aVentricular Dysfunction, Left/dg [Diagnostic Imaging]
650 _aVentricular Dysfunction, Left/mo [Mortality]
651 _aMedStar Heart & Vascular Institute
657 _aJournal Article
700 _aAsch, Federico M
700 _aBen-Dor, Itsik
700 _aBuchanan, Kyle
700 _aKoifman, Edward
700 _aOkubagzi, Petros
700 _aPichard, Augusto D
700 _aRogers, Toby
700 _aSatler, Lowell F
700 _aShults, Christian
700 _aSteinvil, Arie
700 _aTorguson, Rebecca
700 _aWaksman, Ron
700 _aXu, Linzhi
790 _aAsch FM, Ben-Dor I, Buchanan KD, Koifman E, Okubagzi PG, Pichard AD, Rogers T, Satler LF, Shults C, Steinvil A, Torguson R, Waksman R, Xu L
856 _uhttps://dx.doi.org/10.1002/ccd.27914
_zhttps://dx.doi.org/10.1002/ccd.27914
942 _cART
_dArticle
999 _c3787
_d3787