scholarly journals Chronic Kidney Disease Classification in Systolic Blood Pressure Intervention Trial: Comparison Using Modification of Diet in Renal Disease and CKD-Epidemiology Collaboration Definitions

2016 ◽  
Vol 44 (2) ◽  
pp. 130-140 ◽  
Author(s):  
Michael V. Rocco ◽  
Arlene Chapman ◽  
Glenn M. Chertow ◽  
Debbie Cohen ◽  
Jing Chen ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Chronic Kidney Disease ◽  
Kidney Disease ◽  
Renal Disease ◽  
Systolic Blood Pressure ◽  
Disease Classification ◽  
Intervention Trial ◽  
Mdrd Equation ◽  
Ckd Stage ◽  
Lower Egfr

Background: Interventional trials have used either the Modification of Diet in Renal Disease (MDRD) or chronic kidney disease (CKD)-Epidemiology Collaboration (CKD-EPI) equation for determination of estimated glomerular filtration rate (eGFR) to define whether participants have stages 3-5 CKD. The equation used to calculate eGFR may influence the number and characteristics of participants designated as having CKD. Methods: We examined the classification of CKD at baseline using both equations in the Systolic Blood Pressure Intervention Trial (SPRINT). eGFR was calculated at baseline using fasting serum creatinine values from a central laboratory. Results: Among 9,308 participants with baseline CKD classification using the 4-variable MDRD equation specified in the SPRINT protocol, 681 (7.3%) participants were reclassified to a less advanced CKD stage (higher eGFR) and 346 (3.7%) were reclassified to a more advanced CKD stage (lower eGFR) when the CKD-EPI equation was used to calculate eGFR. For eGFRs <90 ml/min/1.73 m2, participants <75 years were more likely to be reclassified to a less advanced CKD stage; this reclassification was more likely to occur in non-blacks rather than blacks. Participants aged ≥75 years were more likely to be reclassified to a more advanced than a less advanced CKD stage, regardless of baseline CKD stage. Reclassification of baseline CKD status (eGFR <60 ml/min/1.73 m2) occurred in 3% of participants. Conclusions: Use of the MDRD equation led to a higher percentage of participants being classified as having CKD stages 3-4. Younger and non-black participants were more likely to be reclassified as not having CKD using the CKD-EPI equation.

Direct Determination rather than Oscillometric Estimation of Systolic Blood Pressure in Patients with Severe Chronic Kidney Disease

2022 ◽  
pp. 1-9
Author(s):  
Amir M. Benmira ◽  
Olivier Moranne ◽  
Camelia Prelipcean ◽  
Emilie Pambrun ◽  
Michel Dauzat ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Chronic Kidney Disease ◽  
Kidney Disease ◽  
Systolic Blood Pressure ◽  
Pulse Pressure ◽  
Measurement Errors ◽  
Blood Pressure Measurement ◽  
Time Interval ◽  
Ckd Stage ◽  
Korotkoff Sounds

<b><i>Introduction:</i></b> Although arterial hypertension is a major concern in patients with chronic kidney disease (CKD), obtaining accurate systolic blood pressure (SBP) measurement is challenging in this population for whom automatic oscillometric devices may yield erroneous results. <b><i>Methods:</i></b> This cross-sectional study was conducted in 89 patients with stages 4, 5, and 5D CKD, for whom we compared SBP values obtained by the recently described systolic foot-to-apex time interval (SFATI) technique which provides direct SBP determination, the standard technique (Korotkoff sounds), and oscillometry. We investigated the effects of age, sex, diabetes, CKD stage, and pulse pressure to explain measurement errors defined as biases or misclassification relative to the SBP thresholds of 110–130-mm Hg. <b><i>Results:</i></b> All 3 techniques showed satisfactory reproducibility for SBP measurement (CCC &#x3e; 0.84 and &#x3e;0.91, respectively, in dialyzed and nondialyzed patients). The mean ± SD from SBP as determined via Korotkoff sounds was 1.7 ± 4.6 mm Hg for SFATI (CCC = 0.98) and 5.9 ± 9.3 mm Hg for oscillometry (CCC = 0.88). Referring to the 110–130-mm Hg SBP range outside which treatment prescription or adaptation is recommended for CKD patients, SFATI underestimated SBP in 3 patients and overestimated it in 1, whereas oscillometry underestimated SBP in 12 patients and overestimated it in 3. Higher pulse pressure was the main explanatory factor for measurement and classification errors. <b><i>Discussion/Conclusion:</i></b> SFATI provides accurate SBP measurements in patients with severe CKD and paves the way for the standardization of automated noninvasive blood pressure measurement devices. Before prescribing or adjusting antihypertensive therapy, physicians should be aware of the risk of misclassification when using oscillometry.

scholarly journals Urinary Biomarkers of Tubular Damage Are Associated with Mortality but Not Cardiovascular Risk among Systolic Blood Pressure Intervention Trial Participants with Chronic Kidney Disease

2019 ◽  
Vol 49 (5) ◽  
pp. 346-355 ◽  
Author(s):  
Vasantha K. Jotwani ◽  
Alexandra K. Lee ◽  
Michelle M. Estrella ◽  
Ronit Katz ◽  
Pranav S. Garimella ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Chronic Kidney Disease ◽  
Kidney Disease ◽  
Systolic Blood Pressure ◽  
Strong Predictor ◽  
Urinary Biomarkers ◽  
Tubular Damage ◽  
Intervention Trial ◽  
Cvd Risk ◽  
Trial Participants

Background: Kidney tubulointerstitial fibrosis on biopsy is a strong predictor of chronic kidney disease (CKD) progression, and CKD is associated with elevated risk of cardiovascular disease (CVD). Tubular health is poorly quantified by traditional kidney function measures, including estimated glomerular filtration rate (eGFR) and albuminuria. We hypothesized that urinary biomarkers of tubular injury, inflammation, and repair would be associated with higher risk of CVD and mortality in persons with CKD. Methods: We measured urinary concentrations of interleukin-18 (IL-18), kidney injury molecule-1, neutrophil gelatinase-associated lipocalin, monocyte chemoattractant protein-1, and chitinase-3-like protein-1 (YKL-40) at baseline among 2,377 participants of the Systolic Blood Pressure Intervention Trial who had an eGFR < 60 mL/min/1.73 m2. We used Cox proportional hazards models to evaluate biomarker associations with CVD events and all-cause mortality. Results: At baseline, the mean age of participants was 72 ± 9 years, and eGFR was 48 ± 11 mL/min/1.73 m2. Over a median follow-up of 3.8 years, 305 CVD events (3.6% per year) and 233 all-cause deaths (2.6% per year) occurred. After multivariable adjustment including eGFR, albuminuria, and urinary creatinine, none of the biomarkers showed statistically significant associations with CVD risk. Urinary IL-18 (hazard ratio [HR] per 2-fold higher value, 1.14; 95% CI 1.01–1.29) and YKL-40 (HR per 2-fold higher value, 1.08; 95% CI 1.02–1.14) concentrations were each incrementally associated with higher mortality risk. Associations were similar when stratified by randomized blood pressure arm. Conclusions: Among hypertensive trial participants with CKD, higher urinary IL-18 and YKL-40 were associated with higher risk of mortality, but not CVD.

scholarly journals Blood pressure targets in patients with chronic kidney disease: MDRD and AASK now confirming SPRINT

2020 ◽  
Author(s):  
Pantelis Sarafidis ◽  
Charalampos Loutradis ◽  
Alberto Ortiz ◽  
Luis M Ruilope
Keyword(s):  
Blood Pressure ◽  
Chronic Kidney Disease ◽  
Kidney Disease ◽  
Systolic Blood Pressure ◽  
Recent Analysis ◽  
Intervention Trial ◽  
Mortality Benefit ◽  
Blood Pressure Targets ◽  
Hypertension Guidelines ◽  
All Cause Mortality

Abstract Recent American and European hypertension guidelines are not in agreement regarding blood pressure (BP) targets for persons with chronic kidney disease (CKD). Previous analyses from the African American Study on Kidney Disease (AASK) and Modification of Diet in Renal Disease (MDRD) trials suggested that strict BP control confers nephroprotection for patients with proteinuria, but a mortality benefit was not apparent. In contrast, an analysis of the Systolic Blood Pressure Intervention Trial (SPRINT) subpopulation of CKD patients showed a mortality benefit with the systolic blood pressure (SBP) &lt;120 mmHg versus the SBP &lt;140 target. A recent analysis of the combined MDRD and AASK cohorts supports previous evidence on nephroprotection but also findings from the SPRINT trial on all-cause mortality benefits of intensive versus usual BP control in individuals with CKD.

scholarly journals Comparative study of ambulatory blood pressure monitoring in hemodialysis and non-dialysis CKD patients and their prognostic value

2019 ◽  
Vol 6 (4) ◽  
pp. 1058
Author(s):  
S. Senthil Kumar ◽  
S. Vithiavathi ◽  
T. Doraickannu
Keyword(s):  
Blood Pressure ◽  
Chronic Kidney Disease ◽  
Kidney Disease ◽  
Renal Disease ◽  
Systolic Blood Pressure ◽  
Diastolic Blood Pressure ◽  
Ambulatory Blood Pressure ◽  
Blood Pressure Monitoring ◽  
Pressure Monitoring ◽  
The Mean

Background: Hypertension and chronic kidney disease are inextricably intertwined. Most patients with hypertension associated CKD die of heart attack and stroke before renal function. Ambulatory BP monitoring provides automated measurements of BP during a 24hrs period while patients engaged in their usual activities including sleep. Recommended normal value include an average daytime BP <135/85mmHg/night time BP <120/70mmHg and 24 hr BP <130/89mmHg. In patients with chronic kidney disease the control of hypertension slows the progression of end stage renal disease. This study was undertaken to define the prognostic role of ABPM in dialysis dependent and non-dialysis CKD patients so that better treatment strategies could be initiated to prevent adverse outcomes.Methods: This prospective cross sectional study was conducted at Aarupadai Veedu Medical College and hospital, Puducherry in both dialysis dependent and non-dialysis CKD patients admitted in both ICU and medical wards. APBM was performed by using the properly validated ambulatory blood pressure monitor. The monitor records BP on the non-dominant arm every 20 minutes while awake and hourly while sleep for a total duration 24hrs in both hemodialysis dependent and non-hemodialysis patients. In  hemodialysis dependent patients ABPM was recorded on the second day of hemodialysis.Results: The mean maximum systolic blood pressure in dialysis dependent and non-dialysis CKD patients recorded was 146.23 and 166.12 mmHg respectively. The mean minimum systolic blood pressure in dialysis dependent and non-dialysis CKD patients recorded was 122.11 and 122.45 mmHg respectively. The mean maximum diastolic blood pressure in dialysis dependent and non-dialysis CKD patients recorded was 100.24 and 110.65mmHg respectively. The mean minimum diastolic blood pressure in dialysis dependent and non-dialysis CKD patients recorded was 78.65 and 80.67 mmHg respectively. In our study the prevalence of non-dipping in dialysis and non-dialysis CKD patients were 28% and 16% respectively.Conclusions: Ambulatory blood pressure monitoring is considered the gold standard for the diagnosis of hypertension. Tight BP control is needed to limit the progression of renal disease and lessen cardiovascular morbidity and mortality. To achieve this goal ABPM should be widely adopted in patients with CKD.

scholarly journals The Copenhagen chronic kidney disease echo study (COInCYDE)

2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
N Landler ◽  
S Bro ◽  
B Feldt-Rasmussen ◽  
D Hansen ◽  
A.L Kamper ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Chronic Kidney Disease ◽  
Cohort Study ◽  
Kidney Disease ◽  
Cardiac Function ◽  
Left Ventricular ◽  
Funding Source ◽  
Ckd Stage ◽  
Significant Difference ◽  
Stage 1

Abstract Background The cardiovascular mortality of patients with chronic kidney disease (CKD) is 2–10 times higher than in the average population. Purpose To estimate the prevalence of abnormal cardiac function or structure across the stages CKD 1 to 5nonD. Method Prospective cohort study. Patients with CKD stage 1 to 5 not on dialysis, aged 30 to 75 (n=875) and age-/sex-matched controls (n=173) were enrolled consecutively. All participants underwent a health questionnaire, ECG, morphometric and blood pressure measurements. Blood and urine were analyzed. Echocardiography was performed. Left ventricle (LV) hypertrophy, dilatation, diastolic and systolic dysfunction were defined according to current ESC guidelines. Results 63% of participants were men. Mean age was 58 years (SD 12.6 years). Mean eGFR was 46.7 mL/min/1,73 m (SD 25.8) for patients and 82.3 mL/min/1,73 m (SD 13.4) for controls. The prevalence of elevated blood pressure at physical exam was 89% in patients vs. 53% in controls. Patients were more often smokers and obese. Left ventricular mass index (LVMI) was slightly, albeit insignificantly elevated at CKD stages 1 & 2 vs. in kontrols: 3.1 g/m2, CI: −0.4 to 6.75, p-value 0.08. There was no significant difference in LV-dilatation between patients and controls. Decreasing diastolic and systolic function was observed at CKD stage 3a and later: LVEF decreased 0.95% (CI: −1.5 to −0.2), GLS increased 0.5 (CI: 0.3 to 0.8), and OR for diastolic dysfunction increased 3.2 (CI 1.4 to 7.3) pr. increment CKD stage group. Conclusion In accordance to previous studies, we observe in the CPHCKD cohort study signs of early increase of LVMI in patients with CKD stage 1 & 2. Significant decline in systolic and diastolic cardiac function is apparent already at stage 3 CKD. Figure 1. Estimated GFR vs. GLS & histogram of GLS Funding Acknowledgement Type of funding source: Public hospital(s). Main funding source(s): The Capital Region of Denmark

scholarly journals Chronic Kidney Disease among Diabetes Patients in Ethiopia: A Systematic Review and Meta-Analysis

2020 ◽  
Vol 2020 ◽  
pp. 1-15
Author(s):  
Wondimeneh Shibabaw Shiferaw ◽  
Tadesse Yirga Akalu ◽  
Yared Asmare Aynalem
Keyword(s):  
Blood Pressure ◽  
Chronic Kidney Disease ◽  
Diabetic Retinopathy ◽  
Kidney Disease ◽  
Glycemic Control ◽  
High Density Lipoprotein ◽  
Systolic Blood Pressure ◽  
Meta Analysis ◽  
Density Lipoprotein ◽  
Diabetes Patients

Background. Though different primary studies have reported the burden of chronic kidney disease among diabetes patients, their results have demonstrated substantial variation regarding its prevalence in Ethiopia. Therefore, this study aimed to estimate the pooled prevalence of chronic kidney disease and its associated factors among diabetes patients in Ethiopia. Method. PubMed, African Journals Online, Google Scholar, Scopus, and Wiley Online Library were searched to identify relevant studies. The I2 statistic was used to check heterogeneity across the included studies. A random-effects model was applied to estimate the pooled effect size across studies. A funnel plot and Egger’s regression test were used to determine the presence of publication bias. All statistical analyses were performed using STATA™ version 14 software. Result. In this meta-analysis, a total of 12 studies with 4,075 study participants were included. The estimated prevalence of CKD among diabetes patients was found to be 35.52% (95% CI: 25.9–45.45, I2 = 96.3%) for CKD stages 1 to 5 and 14.5% (95% CI: 10.5–18.49, I2 = 91.1%) for CKD stages 3 to 5. Age greater than 60 years (OR = 2.99; 95% CI: 1.56–5.73), female sex (OR = 1.68; 95% CI: 1.04–2.69), duration of diabetes >10 years (OR = 2.76; 95% CI: 1.38–5.51), body mass index >30 kg/m2 (OR = 2.06; 95% CI: 1.41–3.00), type 2 diabetes (OR = 2.54; 95% CI: 1.73–3.73), poor glycemic control (OR = 2.01; 95% CI: 1.34–3.02), fasting blood glucose >150 mg/dl (OR = 2.58; 95% CI: 1.79–3.72), high density lipoprotein >40 mg/dl (OR = 0.48; 95% CI: 0.30–0.85–25), systolic blood pressure>140 mmHg (OR = 3.26; 95% CI: 2.24–4.74), and diabetic retinopathy (OR = 4.54; CI: 1.08–25) were significantly associated with CKD. Conclusion. This study revealed that the prevalence of chronic kidney disease remains high among diabetes patients in Ethiopia. This study found that a long duration of diabetes, age>60 years, diabetic retinopathy, female sex, family history of kidney disease, poor glycemic control, systolic blood pressure, overweight, and high level of high-density lipoprotein were associated with chronic kidney disease among diabetic patients. Therefore, situation-based interventions and context-specific preventive strategies should be developed to reduce the prevalence and risk factors of chronic kidney disease among diabetes patients.

Modifying Effect of Statins on Fatal Outcomes in Chronic Kidney Disease Patients in the Systolic Blood Pressure Intervention Trial: A Post Hoc Analysis

2019 ◽  
Vol 49 (4) ◽  
pp. 297-306 ◽  
Author(s):  
Manuel Rivera ◽  
Leonardo Tamariz ◽  
Maritza Suarez ◽  
Gabriel Contreras
Keyword(s):  
Blood Pressure ◽  
Chronic Kidney Disease ◽  
Kidney Disease ◽  
Systolic Blood Pressure ◽  
Statin Therapy ◽  
Statin Group ◽  
All Cause Mortality ◽  
Modifying Effect ◽  
Post Hoc ◽  
Event Rates

Background: Management of chronic kidney disease (CKD) patients includes efforts directed toward modifying traditional cardiovascular risk factors. Such efforts include optimal management of hypertension together with the initiation of statin therapy. Methods: In this observational study, we determine the modifying effect of statins on the relationship of systolic blood pressure (SBP) goal with mortality and other outcomes in patients with CKD participating in a clinical trial. At baseline, 2,646 CKD patients (estimated glomerular filtration rate < 60 mL/min/1.73 m2) were randomized to an intensive SBP goal < 120 mm Hg or standard SBP goal <140 mm Hg. One thousand two hundred and seventy-three were not on statin, 1,354 were on a statin, and in 19 the use of statin was unknown. The 2 primary outcomes were all-cause mortality and cardiovascular disease (CVD) mortality. Results: The relationships of SBP goal with all-cause mortality (interaction p = 0.009) and cardiovascular (CV) mortality (interaction p = 0.021) were modified by the use of statin after adjusting for age, gender, race, CVD history, smoking, aspirin use, and blood pressure at baseline. In the statin group, targeting SBP to < 120 mm Hg compared to SBP < 140 mm Hg significantly reduced the risk of all-cause mortality (adjusted hazard ratio [aHR] 0.44 [0.28–0.71]; event rates 1.16 vs. 2.5 per 100 patient-years) and CV mortality (aHR 0.29 [0.12–0.74]; event rates 0.28 vs. 0.92 per 100 patient-years) after a median follow-up of 3.26 years. In the non-statin group, the risk of all-cause mortality (aHR 1.07 [0.69–1.66]; event rates 2.01 vs. 1.94 per 100 patient-years) and CV mortality (aHR 1.42 [0.56–3.59]; event rates 0.52 vs. 0.41 per 100 patient-years) were not significantly different in both SBP goal arms. Conclusion: The combination of statin therapy and intensive SBP management leads to improved survival in hypertensive patients with CKD.

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