scholarly journals Nocturnal hemodialysis increases arterial baroreflex sensitivity and compliance and normalizes blood pressure of hypertensive patients with end-stage renal disease

2005 ◽  
Vol 68 (1) ◽  
pp. 338-344 ◽  
Author(s):  
Christopher T. Chan ◽  
Vipan Jain ◽  
Peter Picton ◽  
Andreas Pierratos ◽  
John S. Floras
Keyword(s):  
Blood Pressure ◽  
Renal Disease ◽  
End Stage Renal Disease ◽  
Baroreflex Sensitivity ◽  
Arterial Baroreflex ◽  
Hypertensive Patients ◽  
Nocturnal Hemodialysis ◽  
Stage Renal Disease ◽  
End Stage ◽  
Arterial Baroreflex Sensitivity

Abstract 498: Increased Blood Pressure Variability and Baroreflex Impairment in Patients With End-stage Renal Disease Undergoing Hemodialysis

Hypertension ◽  
2013 ◽  
Vol 62 (suppl_1) ◽  
Author(s):  
Kátia B Scapini ◽  
Valéria C Hong ◽  
Janaína B Ferreira ◽  
Sílvia B Souza ◽  
Naomi V Ferreira ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Renal Disease ◽  
End Stage Renal Disease ◽  
Blood Pressure Variability ◽  
Baroreflex Sensitivity ◽  
Low Frequency ◽  
Stage Renal Disease ◽  
End Stage ◽  
Esrd Patients ◽  
Alpha Index

Background: Patients with end-stage renal disease (ESRD) undergoing hemodialysis are susceptible to the development of autonomic dysfunction, which is associated with an increased risk of sudden death. Experimental and clinical evidence suggest a crucial role of autonomic dysfunction for both, the progression of renal disease and for the high rate of cardiovascular events in these patients. In the present study, we evaluated the heart rate variability (HRV), the blood pressure variability (BPV) and the baroreflex sensitivity (BRS) in ESRD patients undergoing hemodialysis and normal controls. Methods: Nine ESRD patients undergoing hemodialysis (mean age 53.4±10.2 years, 4 male) and nine age-matched healthy controls (mean age 52.8±10.2 years, 4 male) were assessed. Non−invasive curves of blood pressure (BP) were recorded continuously (Finometer ®) for 10 minutes, at rest, in the supine position. The heart rate variability (HRV) and systolic blood pressure variability (BPV) were estimated in the time and frequency domain (spectral analysis). The BRS was quantified by alpha index. Statistical analyzes were performed by Student's t test and the results were expressed as mean ± standard deviation. Results: ESRD patients presented lower HRV in time domain than healthy controls (SDNN: 25.8±10.7 vs. 44.6±11.7 ms, p<0.01; VAR NN: 768.3±607.4 vs. 2113.9±1261.6 ms 2 , p=0.01). All frequency domain analyzed indexes, i.e., total power (361.9±297.0 vs. 1227.2±696.3 ms 2 , p<0.01), high-frequency (181.8±128.7 vs. 358.7±179.8 ms 2 , p=0.047), low-frequency (55.1±44.2 vs. 444.6±389.9 ms 2 , p=0.02) and very-low-frequency (72.5±75.1 vs. 279.2±119.5 ms 2 , p<0.01) of HRV were lower in ESRD patients. The BPV was higher in ESRD patients when compared to controls (VAR PAS: 98.4±72.0 vs. 35.4±21.4 ms 2 , p=0.03) and BRS was lower in ESRD patients (alpha index: 4.34±3.05 vs. 7.56±2.50 ms/mmHg, p<0.02). Conclusion: ESRD patients undergoing hemodialysis presents reduced HRV, increase in BPV and reduced baroreflex sensitivity. These impairments may be associated with mortality in ESRD.

Abstract P517: Dialysis Vintage Longer Than Sixty Months Contributes to Increased Arterial Stiffness and Impaired Diastolic Function in Patients with End-stage Renal Disease

Hypertension ◽  
2017 ◽  
Vol 70 (suppl_1) ◽  
Author(s):  
Valentin Calvez ◽  
Marco Palladino ◽  
Giulio Montefusco ◽  
Vincenzo Cesario ◽  
Claudia Fofi ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Renal Disease ◽  
Serum Albumin ◽  
Diastolic Function ◽  
End Stage Renal Disease ◽  
Repeated Measurements ◽  
Hypertensive Patients ◽  
Dialysis Vintage ◽  
Stage Renal Disease ◽  
End Stage

Hemodialysis (HD) may induce vascular stiffness through several mechanisms. We sought to determine the role of dialysis vintage (DV) on the development of cardiovascular alterations. We studied 14 patients in chronic HD and 24 newly diagnosed never treated hypertensive patients and 16 normotensive controls. The patients in HD were divided in two groups according to DV: <60-months (DV<60,n=7) or >60-months (DV>60,n=7). After HD session, when dry weight was reached, we evaluated peripheral blood pressure (pBP), the parameters derived by tonometric analysis of the pulse waveform (central blood pressure-cBP-, Subendocardial Viability Ratio-SEVR-, carotid-femoral pulse wave velocity-cf-PWV-) and those derived from echocardiography: ejection fraction (EF-for systolic function) and E/e’ (for diastolic function), and the ultrafiltration volume (UV). Calcium/phosphate (Ca/P) levels, serum albumin, and Kt/V were evaluated retrospectively on repeated measurements over the past 5 years. All the groups were similar for sex and BMI, both DV<60 and DV>60 were older than hypertensives and controls (58.33±3.71 and 59.83±7.98 vs 44.14±1.28 and vs 40.63±2.05 years, respectively, P<0.05). Both DV<60 and DV>60 presented similar levels of Ca/P, serum albumin, Kt/V and UV. pBP was increased and similar to hypertensives in DV>60 vs DV<60 (systolic-pBP: 154.2±4.5 vs 132.5±5.18 mmHg, P<0.01 and diastolic-pBP: 90.4±49 vs 78.5±3.3 mmHg, P<0.01). Likewise cBP was increased and similar to hypertensive patients in DV>60 vs DV<60 (systolic-cBP: 140.8±8.4 vs 111.2±3.36 mmHg, P<0.001 and diastolic-cBP: 88.2±3.73 vs 72.33±7.78 mmHg, respectively, P<0.05). cf-PWV was similar in normotensives, hypertensives and DV<60, and increased only in DV>60 vs DV<60 (9.6±1.4 vs 7.13±1.4 m/s, p<0.05). SEVR and EF were preserved and similar in all the groups. E/e’ was significantly increased only in the groups in HD, however it was higher in DV>60 vs DV<60 (9.16±1.14 vs 6.96±0.72, P<0.01). In conclusion, only patients with DV>60 presented increased aortic stiffness. This was associated to higher BP and diastolic dysfunction. Hence, chronic HD, particularly after 60 months, may play a putative role in developing cardiovascular alterations in patients with end-stage renal disease.

Early Predictors of 15-Year End-Stage Renal Disease in Hypertensive Patients

Hypertension ◽  
1995 ◽  
Vol 25 (4) ◽  
pp. 587-594 ◽  
Author(s):  
H. Mitchell Perry ◽  
J. Philip Miller ◽  
Jane Rossiter Fornoff ◽  
Jack D. Baty ◽  
Mohinder P. Sambhi ◽  
...  
Keyword(s):  
Renal Disease ◽  
End Stage Renal Disease ◽  
Hypertensive Patients ◽  
Early Predictors ◽  
Stage Renal Disease ◽  
End Stage

scholarly journals Effects of Variability in Blood Pressure, Glucose, and Cholesterol Concentrations, and Body Mass Index on End-Stage Renal Disease in the General Population of Korea

2019 ◽  
Vol 8 (5) ◽  
pp. 755 ◽  
Author(s):  
Mee Kyoung Kim ◽  
Kyungdo Han ◽  
Hun-Sung Kim ◽  
Yong-Moon Park ◽  
Hyuk-Sang Kwon ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Body Mass Index ◽  
General Population ◽  
Renal Disease ◽  
End Stage Renal Disease ◽  
High Variability ◽  
Metabolic Parameters ◽  
Metabolic Parameter ◽  
Stage Renal Disease ◽  
End Stage

Aim: Metabolic parameters, such as blood pressure, glucose, lipid levels, and body weight, can interact with each other, and this clustering of metabolic risk factors is related to the progression to end-stage renal disease (ESRD). The effect of variability in metabolic parameters on the risk of ESRD has not been studied previously. Methods: Using nationally representative data from the Korean National Health Insurance System, 8,199,135 participants who had undergone three or more health examinations between 2005 and 2012 were included in this analysis. Intraindividual variability in systolic blood pressure (SBP), fasting blood glucose (FBG), total cholesterol (TC), and body mass index (BMI) was assessed by examining the coefficient of variation, variability independent of the mean, and average real variability. High variability was defined as the highest quartile of variability and low variability was defined as the lower three quartiles of variability. Results: Over a median (5–95%) of 7.1 (6.5–7.5) years of follow-up after the variability assessment period, 13,600 (1.7/1000 person-years) participants developed ESRD. For each metabolic parameter, an incrementally higher risk of ESRD was observed for higher variability quartiles compared with the lowest quartile. The risk of ESRD was 46% higher in the highest quartile of SBP variability, 47% higher in the highest quartile of FBG variability, 56% higher in the highest quartile of BMI variability, and 108% higher in the highest quartile of TC variability. Compared with the group with low variability for all four parameters, the group with high variability for all four parameters had a significantly higher risk for incident ESRD (hazard ratio (HR) 4.12; 95% CI 3.72–4.57). Conclusions: Variability in each metabolic parameter was an independent predictor of the development of ESRD among the general population. There was a composite effect of the variability in additional metabolic parameters on the risk of ESRD.

Relationship Between Volume Status and Blood Pressure in Children with End Stage Renal Disease on Chronic Hemodialysis

2007 ◽  
Vol 7 (2) ◽  
pp. 210-215
Author(s):  
Fatina I. Fadel ◽  
Samar M. Sabry ◽  
Azza M.O. Abdel Rahm ◽  
Emad Eldin E. Salama ◽  
Marwa M. El-Sonbaty
Keyword(s):  
Blood Pressure ◽  
Renal Disease ◽  
End Stage Renal Disease ◽  
Chronic Hemodialysis ◽  
Volume Status ◽  
Stage Renal Disease ◽  
End Stage

scholarly journals Dynamical interaction between heart rate and blood pressure of end-stage renal disease patients evaluated by cross recurrence plot diagonal analysis

2020 ◽  
Vol 128 (1) ◽  
pp. 189-196 ◽  
Author(s):  
G. Hortensia González ◽  
Oscar Infante ◽  
Paola Martínez-García ◽  
Héctor Pérez-Grovas ◽  
Nadia Saavedra ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Renal Disease ◽  
Systolic Blood Pressure ◽  
End Stage Renal Disease ◽  
Recurrence Plots ◽  
Interbeat Interval ◽  
Stage Renal Disease ◽  
End Stage ◽  
Esrd Patients

The assessment of spontaneous variability of blood pressure and heart rate is based on specific physiological hypotheses about dynamic features, for example, the baroreflex modulation of heart rate over time in daily life. Usually, arterial baroreflex control of heart rate is explored without delays between blood pressure and heart rate data points, within a narrow range of values, excluding the analysis of saturation regions or low-threshold changes. In this work, we examine the dynamic interactions between systolic blood pressure (SBP) and interbeat interval (IBI), in 15-min length time series and for the first time using the analysis of diagonals derived from a cross-recurrence plots in healthy persons and end-stage renal disease (ESRD) patients. We found that ESRD patients have stronger intermittent dynamical interactions between IBI and SBP, but they lose most of the dynamical interactions. Although healthy subjects exhibit a continuously changing order of precedence between IBI and SBP at different lags, ESRD patients preserve this changing order of precedence only for lags >0 beats. NEW & NOTEWORTHY This study is the first to compare the time-variant pattern of systolic blood pressure (SBP) and interbeat interval (IBI) coupling between ESRD patients and healthy volunteers through the analysis of diagonal in cross-recurrence plots, and in the face of an orthostatic challenge. Our results demonstrated alternant interactions on the order of precedence (IBI → SBP or SBP→ IBI) at different time delays. This pattern is different in resting position and during active standing for the two groups studied, and interestingly, some association patterns are lost in ESRD patients. These patterns of alternant interactions on the order of precedence could be related to autonomic neural activities and cardiovascular synchronization at different scales both in time and space. This could reflect physiological adaptive flexibility of cardiovascular regulation. Losing some association patterns in ESRD may be the result of chronic adjustments of many physiological mechanisms (including chronic sympathetic hyperactivity), which could increase cardiovascular vulnerability to hemodynamic challenges.

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