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Maximum morning home systolic blood pressure is an indicator of the development of diabetic nephropathy: The KAMOGAWA-HBP study.

ABSTRACT: AIMS/INTRODUCTION:The maximum value of home systolic blood pressure is correlated with damage to target organs, including diabetic nephropathy. However, the precise relationship between the development of diabetic nephropathy and maximum home systolic blood pressure has not been elucidated. MATERIALS AND METHODS:In this prospective 2-year cohort subanalysis of the KAMOGAWA-HBP study, the patient population was 477 Japanese patients with normoalbuminuria. We investigated the effects of mean and maximum home blood pressure on the development of diabetic nephropathy, which we defined as a urinary albumin excretion value ≥30 mg/g creatinine. Among the 477 patients, 67 developed diabetic nephropathy. RESULTS:In our multivariate logistic regression analyses, the maximum morning home systolic blood pressure was significantly positively associated with the development of diabetic nephropathy after adjusting for patient sex and age, smoking status, the diabetes mellitus duration, body mass index, creatinine, total cholesterol, hemoglobin A1c, and antihypertensive medication use (odds ratio 1.21, 95% confidence interval 1.03-1.42, P = 0.021). CONCLUSIONS:Maximum home blood pressure can be identified at a glance, and its measurement would thus be helpful to healthcare providers who treat patients with diabetes and normoalbuminuria.

SUBMITTER: Okamura T

PROVIDER: S-EPMC6825917 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Project description:BackgroundMorning hypertension is a risk factor for cardiovascular and cerebrovascular events, and consequently diagnosis and control of morning hypertension are considered very important. We previously reported the results of the Azelnidipine Treatment for Hypertension Open-label Monitoring in the Early morning (At-HOME) Study, which indicated that azelnidipine effectively controlled morning hypertension.ObjectivesThe objective of this At-HOME subgroup analysis was to evaluate the sustained blood pressure (BP)-lowering effect of azelnidipine, using mean morning and evening systolic BP [ME average] and morning systolic BP minus evening systolic BP (ME difference).MethodsWe analyzed the self-measured home BP data (measured in the morning and at bedtime) from this 16-week prospective observational study to clarify the effect of morning dosing of azelnidipine (mean [± standard deviation] maximum dose 14.3 ± 3.6 mg/day). A subgroup of patients from the At-HOME Study who had an evening home BP measurement within 28 days prior to the baseline date were used for efficacy analysis (n = 2,546; mean age, 65.1 years; female, 53.6 %).ResultsHome systolic BP/diastolic BP levels in the morning and evening were significantly lowered (p < 0.0001) by -19.4 ± 17.1/-10.3 ± 10.6 and -16.9 ± 17.0/-9.4 ± 10.6 mmHg, respectively. Home pulse rates in the morning and evening were also significantly lowered (p < 0.0001) by -3.5 ± 7.8 and -3.5 ± 7.3 beats/min, respectively. At baseline, patients whose ME average was ≥135 mmHg and whose ME difference was ≥15 mmHg (defined as morning-predominant hypertension) accounted for 20.4 % of the study population. However, at the end of the study, the number of such patients was significantly reduced to 7.9 % (p < 0.0001). Patients whose ME average was ≥135 mmHg and whose ME difference was <15 mmHg (defined as sustained hypertension) accounted for 71.1 % of the study population at baseline. This was reduced significantly to 42.8 % at the end of the study (p < 0.0001). ME average decreased significantly from 153.8 ± 15.5 mmHg to 135.6 ± 11.9 mmHg, and ME difference also decreased significantly from 6.7 ± 13.1 mmHg to 4.7 ± 10.8 mmHg (both p < 0.0001).ConclusionThese results suggest that azelnidipine improved morning hypertension with its sustained BP-lowering effect.

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Maximum morning home systolic blood pressure is an indicator of the development of diabetic nephropathy: The KAMOGAWA-HBP study.

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