Key result
DSE guides successful AVR by confirming contractile reserve in low-gradient AS with low LVEF.
Why the study?
Surgical outcomes of aortic stenosis with low ejection fraction and low pressure gradient are poor, and assessing surgical indication using dobutamine stress echocardiography is important.
Case Report (n=1)
No
Dobutamine stress echocardiography is useful for determining surgical indications in patients with low-ejection fraction, low-gradient aortic stenosis.
Dobutamine stress echocardiography may guide AVR decisions in low-EF low-gradient AS; leaves open need for prospective validation.
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Kasahara et al. (2010) conducted a case report in Low-gradient, low-ejection fraction aortic stenosis (n=1). Dobutamine stress echocardiography and aortic valve replacement was evaluated on Postoperative cardiac function and hemodynamics. Dobutamine stress echocardiography confirmed contractile reserve in an 80-year-old man with low-gradient, low-ejection fraction aortic stenosis, leading to successful aortic valve replacement and improved cardiac function.
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