Low-flow/low-gradient-Aortenklappenstenose

Die Aortenklappenstenose (AS) ist charakterisiert durch eine Obstruktion der Klappe, die zu einer erhöhten Flussgeschwindigkeit und somit zu einem erhöhten Gradienten in der Duplexechokardiografie führt. Unter bestimmten Bedingungen kann jedoch durch ein niedriges Herzschlagvolumen trotz relevanter AS kein erhöhter Gradient gemessen werden: Low-flow/low-gradient-AS. Sie stellt im klinischen Alltag eine diagnostische und therapeutische Herausforderung dar.

Schlüsselwörter

Low-flow/low-gradient-Aortenklappenstenose - Dobutaminstressechokardiografie - operativer Aortenklappenersatz - TAVI

• Literatur

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