Journal
JOURNAL OF CLINICAL HYPERTENSION
Volume 22, Issue 6, Pages 981-990Publisher
WILEY
DOI: 10.1111/jch.13875
Keywords
ambulatory blood pressure monitoring; carotid intima-media thickness; hypertension; left ventricular mass index; target organ damage
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Funding
- National Natural Science Foundation of China [31730043]
- National Key R&D Program of China [2018YFC1312700]
- Program of Innovative Research Team by National Natural Science Foundation [81721001]
- Clinical Medical Research Personnel Training Program of the Army Medical University [2018XLC10I2]
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The area under the blood pressure curve is associated with target organ damage, but accurately estimating its value is challenging. This study aimed to improve the utility of the area under the blood pressure curve to predict hypertensive target organ damage. This retrospective cohort study comprised of 634 consecutive patients with essential hypertension for >1 year. Target organ damage was defined as the presence of left ventricular hypertrophy and/or carotid artery plaques. We evaluated the associations between the cumulative blood pressure load, which was derived from ambulatory blood pressure monitoring data, and target organ damage. The predictive value of the cumulative blood pressure load for target organ damage was assessed using receiver operating characteristic curves. Left ventricular hypertrophy and carotid artery plaques were present in 392 (61.8%) and 316 (49.8%) patients, respectively. Patients with left ventricular hypertrophy and/or carotid artery plaques had higher 24-hour blood pressure, nocturnal cumulative systolic blood pressure, and nocturnal cumulative pulse pressure load. The nocturnal cumulative systolic blood pressure load was an independent predictor of left ventricular hypertrophy (odds ratio = 1.002, 95% confidence interval: 1.001-1.004; P = .000) and carotid artery plaques (odds ratio = 1.003, 95% confidence interval: 1.002-1.007; P = .007). The nocturnal cumulative systolic blood pressure and cumulative pulse pressure load, relative to mean blood pressure, were superior in predicting hypertensive target organ damage. Hence, the cumulative blood pressure load is a better indicator of blood pressure consequences, and the nocturnal cumulative systolic blood pressure and cumulative pulse pressure loads could predict target organ damage.
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