Aortic stenosis (AS) is a life-threatening comorbidity of cancer patients. Aortic valve replacement (AVR) should be considered for some cancer patients, but neither the characteristics nor prognosis under conservative therapy is well known.We searched our echocardiography log (years 2005-2014) for cancer patients with AS, and 92 patients (54% female) were included in the study. To compare the survival curves, 470 control patients without AS were selected from our cancer registry.Mean age (± SD) was 77.6 ± 6.7 years for males and 81.6 ± 6.3 years for females. Mean aortic valve area (AVA) was 1.0 ± 0.3 cm. Stomach, blood, and urinary bladder cancers were the major sites of current cancer. During the 5-year follow-up period, 44 patients with AS (48%) died; 26 (59%) due to cancer progression, 10 (23%) heart failure, and 4 (9%) stroke. Heart-failure death was significantly higher for patients with AS than for control patients (P < 0.001). Kaplan-Meier survival estimates were worse for stage I or II patients with AVA < 0.75 cm than for control patients (P = 0.016). Older age, advanced stages, absence of dyslipidemia, recent syncope, and chronic heart failure or AVA < 0.75 cm were significantly and independently associated with poor survival.Although the majority of cancer patients with AS died of cancer, a quarter died of heart failure. Careful follow-up is needed because cancer patients at earlier stages with symptomatic AS or AVA < 0.75 cm should be considered for AVR.
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