Circulation. Cardiovascular interventions · 2017
Acute and Midterm Outcomes of Transcatheter Pulmonary Valve Replacement for Treatment of Dysfunctional Left Ventricular Outflow Tract Conduits in Patients With Aortopulmonary Transposition and a Systemic Right Ventricle.
СтатьяМногоцентровое исследованиеНазвание и аннотация: Перевод пока не подготовлен
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Whiteside Wendy, Tretter Justin T, Aboulhosn Jamil, Aldoss Osamah, Armstrong Aimee K, Bocks Martin L, Gillespie Matthew J, Jones Thomas K, Martin Mary Hunt, Meadows Jeffrey J, Metcalf Christina M, Turner Mariel E, Zellers Thomas, Goldstein Bryan H
Аннотация
BACKGROUND: Transcatheter pulmonary valve replacement (TPVR) is an established therapy for dysfunctional right ventricular (RV) outflow tract conduits. TPVR in patients with congenitally corrected transposition of the great arteries, subpulmonary left ventricle, and left ventricular outflow tract (LVOT) conduit dysfunction has not been studied. Unique anatomic and physiological aspects of this population may contribute to distinct risks and outcomes.
METHODS AND RESULTS: Across 10 US centers, 27 patients with a dysfunctional LVOT conduit were evaluated in the catheterization laboratory between December 2008 and August 2015 with the intent to perform TPVR. TPVR was successful in 23 patients (85%). Five serious adverse events occurred in 4 cases (15%), including pulmonary hemorrhage, hypotension requiring vasoactive support, conduit disruption requiring covered stent (n=2), and acute RV dysfunction with flash pulmonary edema. After TPVR, the LVOT peak systolic ejection gradient decreased from median of 35 to 17 mm Hg (P<0.001); pulmonary insufficiency was trivial/none in all but 1 patient, where it was mild. Worsening of systemic RV dysfunction or tricuspid regurgitation was seen in 12 patients (57%) and was associated with a significantly lower post-TPVR LVOT peak systolic ejection gradient (median 17 versus 21 mm Hg; P=0.02) and higher post-TPVR RV sphericity index (median 0.88 versus 0.52; P=0.004). Post-TPVR, there were 2 late deaths because of RV failure and 1 cardiac transplantation because of progressive RV dysfunction and tricuspid regurgitation.
CONCLUSIONS: TPVR in dysfunctional LVOT conduits is feasible but associated with an important rate of TPV nonimplantation and procedural serious adverse events. Worsening systemic RV function and tricuspid regurgitation may develop after LVOT TPVR.
METHODS AND RESULTS: Across 10 US centers, 27 patients with a dysfunctional LVOT conduit were evaluated in the catheterization laboratory between December 2008 and August 2015 with the intent to perform TPVR. TPVR was successful in 23 patients (85%). Five serious adverse events occurred in 4 cases (15%), including pulmonary hemorrhage, hypotension requiring vasoactive support, conduit disruption requiring covered stent (n=2), and acute RV dysfunction with flash pulmonary edema. After TPVR, the LVOT peak systolic ejection gradient decreased from median of 35 to 17 mm Hg (P<0.001); pulmonary insufficiency was trivial/none in all but 1 patient, where it was mild. Worsening of systemic RV dysfunction or tricuspid regurgitation was seen in 12 patients (57%) and was associated with a significantly lower post-TPVR LVOT peak systolic ejection gradient (median 17 versus 21 mm Hg; P=0.02) and higher post-TPVR RV sphericity index (median 0.88 versus 0.52; P=0.004). Post-TPVR, there were 2 late deaths because of RV failure and 1 cardiac transplantation because of progressive RV dysfunction and tricuspid regurgitation.
CONCLUSIONS: TPVR in dysfunctional LVOT conduits is feasible but associated with an important rate of TPV nonimplantation and procedural serious adverse events. Worsening systemic RV function and tricuspid regurgitation may develop after LVOT TPVR.
Предметные рубрики MeSH
AdolescentAdultBioprosthesisBlood Vessel ProsthesisBlood Vessel Prosthesis ImplantationCardiac CatheterizationChildCongenitally Corrected Transposition of the Great ArteriesFeasibility StudiesFemaleHeart Valve ProsthesisHeart Valve Prosthesis ImplantationHeart VentriclesHumansMaleMiddle AgedPostoperative ComplicationsProsthesis DesignPulmonary ValvePulmonary Valve InsufficiencyRecovery of FunctionRetrospective StudiesRisk FactorsTime FactorsTransposition of Great VesselsTreatment OutcomeUnited StatesVentricular Function, LeftVentricular Function, RightYoung Adult