RESUMEN
The introduction of devices for transcatheter aortic valve implantation, mitral repair, and closure of prosthetic paravalvular leaks has led to a greatly expanded armamentarium of catheter-based approaches to patients with regurgitant as well as stenotic valvular disease. Echocardiography plays an essential role in identifying patients suitable for these interventions and in providing intra-procedural monitoring. Moreover, echocardiography is the primary modality for post-procedure follow-up. The echocardiographic assessment of patients undergoing transcatheter interventions places demands on echocardiographers that differ from those of the routine evaluation of patients with native or prosthetic valvular disease. Consequently, the European Association of Echocardiography in partnership with the American Society of Echocardiography has developed the recommendations for the use of echocardiography in new transcatheter interventions for valvular heart disease. It is intended that this document will serve as a reference for echocardiographers participating in any or all stages of new transcatheter treatments for patients with valvular heart disease.
Asunto(s)
Cateterismo Cardíaco/métodos , Ecocardiografía/métodos , Enfermedades de las Válvulas Cardíacas/terapia , Implantación de Prótesis de Válvulas Cardíacas/métodos , Cateterismo Cardíaco/instrumentación , Cateterismo Cardíaco/normas , Ecocardiografía/normas , Unión Europea , Enfermedades de las Válvulas Cardíacas/diagnóstico por imagen , Enfermedades de las Válvulas Cardíacas/patología , Implantación de Prótesis de Válvulas Cardíacas/instrumentación , Implantación de Prótesis de Válvulas Cardíacas/normas , Humanos , Medición de Riesgo/métodos , Sociedades Médicas , Factores de Tiempo , Estados UnidosRESUMEN
OBJECTIVES: Aortic valve implantation through peripheral vascular access is an option for high-risk patients with severe aortic valve stenosis. The authors aimed to compare the acute effect of endovascular and surgical aortic valve procedures on left ventricular diastolic function. DESIGN: A case-matched, nonrandomized study. SETTING: A university hospital. PARTICIPANTS: Patients with aortic stenosis. INTERVENTIONS: B-natriuretic peptide was measured in 30 patients with a logistic EuroSCORE > or =20% undergoing endovascular aortic valve implantation. Patients were case matched (age, mitral flow propagation velocity, mitral annulus early diastolic velocity, and B-natriuretic peptide measurement) with 30 control patients undergoing surgical aortic valve replacement through sternotomy. Left ventricular diastole was evaluated initially and after valve procedures with echocardiography by mitral flow propagation velocity and mitral annulus early diastolic velocity. MEASUREMENTS AND MAIN RESULTS: B-natriuretic peptide was similar preoperatively in the 2 groups (346 [188-438] v 367 [211-458] pg/mL) and higher (p = 0.006) in the surgical group postoperatively (389.5 [237-479] v 710.5 [389-822] pg/mL), with a postprocedural statistically significant increase only in the surgical group. Diastolic function was similar in the 2 groups preoperatively, improved postoperatively in the endovascular group, and worsened in the surgical group. CONCLUSIONS: B-natriuretic peptide increased after surgical but not after endovascular aortic valve replacement. Furthermore, endovascular aortic valve implantation acutely improved left ventricular diastolic function as documented by increases in mitral flow propagation velocity and mitral annulus early diastolic velocity.