Fração de ejeção baixa com gradiente baixo na estenose aórtica. Parte 1

Valvuloarterial impedance does not improve risk stratification in low-ejection fraction, low-gradient aortic stenosis: results from a multicentre study
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Eur J Echocardiogr (2011) 12 (5): 358-363.
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In the total population, Zva(Valvuloarterial impedance) was not predictive of long-term mortality. In the 128 patients who underwent aortic valve replacement, Zva was not predictive of operative death and of long-term mortality.
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Conclusions Increased Zva is related to low LVEF and more frequent CR on DSE in LEF/LGAS. However, Zva did not allow an accurate distinction between true and pseudo-severe AS and failed to predict operative and long-term mortality after aortic valve replacement, in LEF/LGAS.
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Com o aumento de casos de estenose aórtica em pacientes idosos e com fração de ajeção reduzida, a discussão acima toma corpo em várias revistas.
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Em nosso meio, essa discussão ainda não encontra uma platéia grande.

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