Abstract P392: Ambulatory Arterial Stiffness Index Among Children With Chronic Kidney Disease

Hypertension ◽  
2018 ◽  
Vol 72 (Suppl_1) ◽  
Author(s):  
Susan M Halbach ◽  
Megan Carroll ◽  
Derek K Ng ◽  
Joseph T Flynn ◽  
Joshua Samuels ◽  
...  
2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
Ronaldo Altenburg Gismondi ◽  
Mario Fritsch Neves ◽  
Wille Oigman ◽  
Rachel Bregman

Ambulatory arterial stiffness index (AASI) is a parameter obtained from ambulatory blood pressure monitoring (ABPM) that correlates with clinical endpoints. The aim of this study was to compare AASI in nondiabetic hypertensive patients with and without chronic kidney disease (CKD). Subjects with systemic arterial hypertension (SAH,n=30) with normal renal function, aged 40 to 75 years, were compared to hypertensive patients with CKD (n=30) presenting estimated glomerular filtration rate (eGFR) <60 mL/min by MDRD formula. ABPM was carried out in all patients. In CKD group, eGFR was 35.3 ± 2.8 ml/min. The mean 24-hour systolic and diastolic blood pressure (BP) was similar in both groups. AASI was significantly higher in CKD group (0.45±0.03versus0.37±0.02,P<0.05), positively correlated to age (r=0.38,P<0.01) and pulse pressure (r=0.43,P<0.01) and negatively correlated to nocturnal BP fall (r=-0.28,P=0.03). These findings indicate the presence of stiffer vessels in CKD hypertensive patients.


2017 ◽  
Vol 64 (4) ◽  
pp. 279-283
Author(s):  
Alexandru Minca ◽  
◽  
Mihai Comsa ◽  
Maria Mirabela Manea ◽  
Maria Daniela Tanasescu ◽  
...  

Chronic kidney disease (CKD) affects approximately two million people (in a population of 20 million) in Romania. Hypertension is often associated with CKD and both (hypertension and CKD) are risk factors for cardiovascular (CV) events. Ambulatory blood pressure monitoring (ABPM) is increasingly used all around the world for the diagnosis and monitoring of BP (blood pressure) because it is proven that the ABPM is superior to office BP measurements in evaluating patients with hypertension, with or without CKD. Reduced nocturnal BP fall (non-dipping or reverse-dipping patterns) is associated with target organ damage, especially kidney disease and the proportion of non-dippers and reverse-dippers patients increases progressively with the reduction of glomerular filtration rate (GFR). Another ABPM parameter, ambulatory arterial stiffness index (AASI), is an index which was recently proposed for the evaluation of arterial stiffness (a better tool than PP). It has prognostic value for cardiac death and stroke and several studies have showed that is negatively related to eGFR and is positively related to albuminuria. Hyperbaric area index (HBI) might be considered a novel sensitive marker [independent of patterns of NBPC (nocturnal BP change)] for the reduction of kidney function. These facts suggest that ABPM offers multiple useful data with impact, not only in future CV and renal outcomes assessment, but also in the treatment and management of hypertensive patients with CKD.


2019 ◽  
Vol 20 (21) ◽  
pp. 5301 ◽  
Author(s):  
Hsu ◽  
Lu ◽  
Lo ◽  
Lin ◽  
Tain

Cardiovascular disease (CVD) is common in chronic kidney disease (CKD), while major CV events are rare in young CKD patients. In addition to nitric oxide (NO)-related biomarkers, several surrogate markers have been assessed to stratify CV risk in youth with CKD, including 24-h ambulatory blood pressure monitoring (ABPM), carotid artery intima-media thickness (cIMT), pulse wave velocity (PWV), ABPM-derived arterial stiffness index (AASI), flow-mediated dilatation (FMD), and left ventricular mass index (LVMI). The aim of this study was to identify subclinical CVD through the analysis of indices of CV risk in children and adolescents with CKD. Between 2016 and 2018, the prospective observational study enrolled 125 patients aged 3 to 18 years with G1–G4 CKD stages. Close to two-thirds of young patients with CKD exhibited blood pressure (BP) abnormalities on ABPM. CKD children with abnormal office BP showed lower plasma arginine levels and arginine-to-asymmetric dimethylarginine (ADMA) ratio, but higher ratios of ADMA-to-symmetric dimethylarginine (SDMA) and citrulline-to-arginine. High PWV and AASI, indices of arterial stiffness, both strongly correlated with high BP load. Additionally, LV mass and LVMI exhibited strong correlations with high BP load. Using an adjusted regression model, we observed the citrulline-to-arginine ratio was associated with 24-h systolic and diastolic BP, systolic blood pressure (SBP) load, and diastolic blood pressure (DBP) load. Early assessments of NO-related parameters, BP load abnormalities, arterial stiffness indices, and LV mass will aid in early preventative care toward decreasing CV risk later in life for children and adolescents with CKD.


Author(s):  
Zh. D. Kobalava ◽  
V. V. Kireeva ◽  
V. S. Chernomorets ◽  
E. A. Troitskaya ◽  
Yu. V. Stavtseva

Aim. To study the effects of fixed-dose indapamide/perindopril combination on endothelial function and arterial stiffness in patients with uncontrolled stage 1-2 hypertension (HTN) and chronic kidney disease (CKD).Material and methods. Total of 100 patients with uncured or uncontrolled with ≥3 months antihypertensive therapy HTN and CKD G3 (67% females, mean age 59,1±12,5 years) were included in the study. Each patient took indapamide/perindop combination in accordance with 1 of 3 existing regimes (depending on doses) for 3 months. Primary aim was to assess the effects of indapamide/perindopril combination on endothelial function and parameters of arterial stiffness after 12 weeks of treatment (assessment by AngioScan diagnostic complex). Secondary aims were achievement of target blood pressure (BP) after 4 and 12 weeks of therapy and assessment of glomerular filtration rate (GFR) and the albumin-tocreatinine ratio (ACR) changes after 12 weeks.Results. Initially, there was an increase in arterial stiffness parameters in all patients, and during treatment decrease was observed: central systolic BP (SBP) from 120±10,1 to 112,9±6,3 mm Hg, median augmentation index from 10,9% to 4,6%, stiffness index from 8,1±2,4 to 7,1±0,9, vascular age decreased by 9,6% (р< 0,001 for trend). Significant improvement of endothelial function was observed regardless of diabetes presence: occlusion index increased from 1,5±0,3 to 1,7±0,5, median phase shift — from -4,6 to -2,4 ms (p< 0,01). After 4 weeks, 27% of patients reached target BP, by the end of the study — 90%. A decrease in the median ACR from 16,3 to 15,0 mg/g, GFR increase from 50,2±7,6 to 53,6±8,7 ml/min/1,73 m2 were observed (p< 0,01 for trend).Conclusion. Therapy with a fixed-dose indapamide/perindopril combination in patients with uncontrolled stage 1-2 HTN and G3 CKD leads to a significant improvement in arterial stiffness, endothelial and renal function, and achievement of target BP in 90% of patients.


Author(s):  
Qiao Qin ◽  
Fangfang Fan ◽  
Jia Jia ◽  
Yan Zhang ◽  
Bo Zheng

Abstract Purpose An increase in arterial stiffness is associated with rapid renal function decline (RFD) in patients with chronic kidney disease (CKD). The aim of this study was to investigate whether the radial augmentation index (rAI), a surrogate marker of arterial stiffness, affects RFD in individuals without CKD. Methods A total of 3165 Chinese participants from an atherosclerosis cohort with estimated glomerular filtration rates (eGFR) of ≥ 60 mL/min/1.73 m2 were included in this study. The baseline rAI normalized to a heart rate of 75 beats/min (rAIp75) was obtained using an arterial applanation tonometry probe. The eGFRs at both baseline and follow-up were calculated using the equation derived from the Chronic Kidney Disease Epidemiology Collaboration. The association of the rAIp75 with RFD (defined as a drop in the eGFR category accompanied by a ≥ 25% drop in eGFR from baseline or a sustained decline in eGFR of > 5 mL/min/1.73 m2/year) was evaluated using the multivariate regression model. Results During the 2.35-year follow-up, the incidence of RFD was 7.30%. The rAIp75 had no statistically independent association with RFD after adjustment for possible confounders (adjusted odds ratio = 1.12, 95% confidence interval: 0.99–1.27, p = 0.074). When stratified according to sex, the rAIp75 was significantly associated with RFD in women, but not in men (adjusted odds ratio and 95% confidence interval: 1.23[1.06–1.43], p = 0.007 for women, 0.94[0.76–1.16], p = 0.542 for men; p for interaction = 0.038). Conclusion The rAI might help screen for those at high risk of early rapid RFD in women without CKD.


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