To study whether sleep blood pressure (BP) self‐measured at home is associated with organ damage, the authors analyzed the data of 2562 participants in the J‐HOP study who self‐measured sleep BP using a home BP monitoring (HBPM) device, three times during sleep (2 am, 3 am, 4 am), as well as the home morning and evening BPs. The mean sleep home systolic BPs (SBPs) were all correlated with urinary albumin/creatinine ratio (UACR), left ventricular mass index (LVMI), brachial‐ankle pulse wave velocity (baPWV), maximum carotid intima‐media thickness, and plasma N‐terminal pro‐hormone pro–brain‐type natriuretic peptide (NTproBNP) (all P<.001). After controlling for clinic SBP and home morning and evening SBPs, associations of home sleep SBP with UACR, LVMI, and baPWV remained significant (all P<.008). Even in patients with home morning BP <135/85 mm Hg, 27% exhibited masked nocturnal hypertension with home sleep SBP ≥120 mm Hg and had higher UACR and NTproBNP. Masked nocturnal hypertension, which is associated with advanced organ damage, remains unrecognized by conventional HBPM.

In HBP-guided antihypertensive treatment in hypertensives, bedtime dosing of an ARB may be superior to awakening dosing for reducing microalbuminuria.

Recent studies have revealed the clinical usefulness of central blood pressure (BP) as an index of risk for cardiovascular disease. The arterial pulse waveform is the sum of the forward pressure wave generated by left ventricular ejection and a backward propagating wave that is subsequently reflected from the peripheral site, and the time point at which these forward and backward propagating waves merge and the amplitude of the reflected (backward) wave affect the level of central BP. The augmentation index (AIx) has been proposed as a measure of the wave reflection, and its clinical usefulness has also been evaluated. In the process, the non-linear relationship between age and AIx, the prognostic value of AIx, and the various effects of antihypertensive drugs on AIx have been shown. However, the clinical usefulness of AIx has not been established, and several questions about its use remain. Future studies will be needed to address these questions, and may contribute to important changes in the management of cardiovascular disease. In this review, we present recent findings on the AIx and discuss the role of this parameter in clinical practice.

SUMMARY BackgroundThe Wisteria floribunda agglutinin-positive human Mac-2-binding protein (WFA

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