Tianjin Medical Journal ›› 2023, Vol. 51 ›› Issue (10): 1110-1116.doi: 10.11958/20222067

• Clinical Research • Previous Articles     Next Articles

The influence of blood pressure fluctuation on poor prognosis in patients with severe aortic stenosis

YANG Xueyuan1,2(), FENG Chao3,4, FENG Jinping3,4,()   

  1. 1. Department of Cardiology, Chest Hospital, Tianjin University, Tianjin 300222, China
    2. Graduate School of Tianjin Medical University
    3. Department of CICU, Tianjin Chest Hospital
    4. Tianjin Key Laboratory of Cardiovascular Emergency and Critical Care, Tianjin Municipal Science and Technology Bureau
  • Received:2022-01-03 Revised:2023-05-16 Published:2023-10-15 Online:2023-10-18
  • Contact: E-mail:chlfjp@sina.com

Abstract:

Objective To analyze risk factors for the poor prognosis of severe aortic stenosis (AS), and to evaluate the influence of blood pressure and blood pressure fluctuation on the poor prognosis of severe AS. Methods Clinical data of patients with acute decompensation of chronic heart failure (CHF) admitted to the Cardiac Intensive Care Unit of Tianjin Chest Hospital from December 2018 to March 2022 were collected. Patients were divided into the AS group and the non-NAS group according to aortic stenosis lesions. Baseline clinical data, follow-up results, blood pressure for consecutive 3 days after admission and blood pressure monitoring values for 2 days before discharge were collected, and indexes such as mean arterial pressure (MAP), systolic pressure difference (?SBP) and diastolic pressure difference (?DBP) were calculated. The primary endpoint event was a composite endpoint of rehospitalization and/or all-cause death due to heart failure, and the secondary endpoint event was cardiogenic death. The Kaplan-Meier survival curve was used to compare the survival differences between the two groups. Univariate and multivariate Cox regression models were used to analyze prognostic factors of aortic stenosis in patients with AS. Further subgroup analysis was conducted according to whether the AS group was complicated with hypertension and the ?SBP quartile to compare the occurrence of end events and outcome differences between groups. Results Ninety-one patients were included, including 50 in the AS group and 41 in the NAS group. Compared with the NAS group, the AS group was older, and had a higher proportion of smoking history, diabetes history, and lower extremity edema symptoms on admission, lower albumin level, and higher pulmonary artery systolic blood pressure (P<0.05). Kaplan-Meier results showed that the incidence of primary (P=0.030) and secondary (P=0.037) endpoint events were higher in the AS group than that in the NAS group. Cox regression results showed that old age, combined hypertension, elevated ?SBP, and elevated NE were independent risk factors for primary endpoint events (P<0.05), and old age and elevation of ?SBP and ?DBP were independent risk factors for secondary endpoint events (P<0.05). Subgroup analysis showed that the incidence of primary endpoint events was higher in AS patients with hypertension than that in AS patients with non-hypertension patients (P=0.011). The larger the ?SBP, the higher the incidence of primary endpoint events in the AS group (P<0.001). Conclusion Hypertension, elevated ?SBP and old age are independent risk factors for poor prognosis of AS. Patients with AS have lower survival rates. The greater the fluctuation of blood pressure, the lower the survival rate and the worse the prognosis of AS patients.

Key words: aortic valve stenosis, hypertension, prognosis, risk factors, blood pressure

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