Effect of blood pressure lowering and antihypertensive drug class on progression of hypertensive kidney disease: results from the AASK trial

Risk-directed management of chronic kidney disease

The timely and rational institution of therapy is a key step towards reducing the global burden of chronic kidney disease (CKD). CKD is a heterogeneous entity with varied aetiologies and diverse trajectories, which include risk of kidney failure but also cardiovascular events and death. Developments in the past decade include substantial progress in CKD risk prediction, driven in part by the accumulation of electronic health records data. In addition, large randomized clinical trials have demonstrated the effectiveness of sodium-glucose co-transporter 2 inhibitors, glucagon-like peptide 1 receptor agonists and mineralocorticoid receptor antagonists in reducing adverse events in CKD, greatly expanding the options for effective therapy. Alongside angiotensin-converting enzyme inhibitors and angiotensin receptor blockers, these classes of medication have been proposed to be the four pillars of CKD pharmacotherapy. However, all of these drug classes are underutilized, even in individuals at high risk. Leveraging prognostic estimates to guide therapy could help clinicians to prescribe CKD-related therapies to those who are most likely to benefit from their use. Risk-based CKD management thus aligns patient risk and care, allowing the prioritization of absolute benefit in determining therapeutic selection and timing. Here, we discuss CKD prognosis tools, evidence-based management and prognosis-guided therapies.

Baseline Diastolic BP and BP-Lowering Effects on Cardiovascular Outcomes and All-Cause Mortality: A Meta-Analysis

Key Points

Background

Lowering BP in persons with low diastolic BP could be harmful. Hence, we examined whether baseline diastolic BP modifies the effects of BP lowering on clinical outcomes in a meta-analysis of five large BP-lowering trials.

Methods

In a study-level meta-analysis on the basis of individual participant data of the Systolic Blood Pressure Intervention Trial (SPRINT; N=9361), the Action to Control Cardiovascular Risk in Diabetes Blood Pressure (ACCORD; N=2362), the Secondary Prevention of Small Subcortical Strokes (SPS3; N=3020), the African American Study of Kidney Disease and Hypertension (AASK; N=1094), and the Modification of Diet in Renal Disease (MDRD; N=840) studies, we used DerSimonian–Laird random-effects models to examine the dependence of the effect of the BP-lowering intervention on baseline diastolic BP for cardiovascular, all-cause mortality, and kidney outcomes.

Results

The mean baseline age was 65±10 years. Mean baseline systolic and diastolic BP were 141±17 and 79±12 mm Hg, respectively. More intensive BP control resulted in lower risk of composite cardiovascular outcome (hazard ratio, 0.79; 95% confidence interval, 0.72 to 0.87) and all-cause mortality (hazard ratio, 0.86; 95% confidence interval, 0.75 to 0.99) without evidence that the BP intervention effects differed by level of baseline diastolic BP (interaction P = 0.76 for cardiovascular composite and 0.85 for all-cause mortality). The mean baseline diastolic BP in the lowest and upper three quartiles of baseline diastolic BP were 65±6 and 84±9 mm Hg, respectively, but the effects of the BP interventions on the outcomes were similar in both groups. Furthermore, there was no evidence of interaction of the BP intervention and baseline diastolic BP for kidney outcomes.

Conclusions

Within the included diastolic BP range, there was no evidence that baseline diastolic BP modified the beneficial effects of intensive BP lowering.

Prevention of hypertension-induced renal vascular dysfunction through a p66Shc-targeted mechanism

Renal microvascular injury occurs in most patients with hypertension-induced nephropathy (HN). We have shown that overexpression of adaptor protein p66Shc is implicated in the loss of renal microvascular reactivity in hypertensive rats. Since sulfur heteroarotinoid A2 (SHetA2) modulates p66Shc, we tested whether SHetA2 would restore renal microvascular reactivity and mitigate kidney injury in a rat HN model. Dahl salt sensitive (SS) and p66Shc knockout (p66Shc-KO) rats were used in a well-established rat model of HN, characterized by severe renal vascular dysfunction. SHetA2 was either added acutely to isolated rat afferent arterioles or chronically administrated to rats during HN development. The ability of SHetA2 treatment to restore afferent arteriolar contraction in response to increased perfusion pressure or ATP was evaluated using the perfused juxtamedullary nephron preparation. The progression of renal damage was evaluated by measuring urinary protein excretion and conducting analysis of glomerular injury. Comparison of renal microvascular responses to perfusion pressure in p66Shc-KO rats and parental SS rats, in the presence and absence of acute preincubation with SHetA2, revealed a dose-dependent ability of SHetA2 to restore renal microvascular reactivity in SS rats with little effect upon p66Shc knockouts. Moreover, chronic treatment with SHetA2 prevented loss of renal microvascular responses and decline in renal function. SHetA2 was more potent and effective in males compared with females. Targeting p66Shc with SHetA2 diminishes renal damage and restores renal afferent arteriolar reactivity caused by hypertension. These results justify further translation of these findings to develop SHetA2 for prevention and treatment of hypertension-induced kidney damage.NEW & NOTEWORTHY Acute preincubation with modulator of p66Shc signaling sulfur heteroarotinoid A2 (SHetA2) revealed dose-dependent ability of SHetA2 to restore renal microvascular reactivity in rats with hypertension-induced nephropathy. Moreover, chronic treatment with SHetA2 prevented loss of renal microvascular responses and decline in renal function. Thus, targeting p66Shc with SHetA2 diminishes renal damage and restores renal afferent arteriolar reactivity caused by hypertension.

Heart rate-lowering drugs and outcomes in hypertension and/or cardiovascular disease: a meta-analysis

BACKGROUND AND AIMS

The benefits of heart rate (HR)-lowering drug treatment in hypertension remain controversial. The effects of HR lowering on cardiovascular (CV) outcomes, mortality, and adverse events in patients with hypertension and/or CV disease were evaluated.

METHODS

PubMed, the Embase, and the Cochrane Library were searched for randomized trials comparing HR-lowering drugs with placebo or less intensive treatment. Risk ratios and 95% confidence intervals for eight outcomes were calculated (random-effects model). Subgroup analyses for a standard HR reduction were used to compare risk estimates in different HR groups or age strata (PROSPERO CRD42024540924).

RESULTS

The database included 74 HR-lowering treatment trials (n = 157 764 patients). The average HR reduction over 2.7 years was 8.2 b.p.m. (baseline/attained HR: 76.2/65.6 b.p.m.). HR-lowering reduced coronary heart disease by 16%, heart failure by 9%, CV mortality by 14%, and all-cause mortality by 13% but increased adverse event-driven discontinuations by 25%. Significant mortality reductions were noted in post-acute myocardial infarction and heart failure. No significant outcome changes were observed with HR reduction in hypertension without CV disease, while the entire hypertensive population experienced increased stroke and mortality. Threshold analysis revealed that the effect on outcomes was not different across cutoffs (from ≥80 b.p.m. to almost 70 b.p.m.), except for heart failure. Treatment outcome effects were not different across progressively lower targets (from ≥70 b.p.m. to <65 b.p.m.), except for permanent discontinuations, which showed an incremental trend.

CONCLUSIONS

The HR reduction benefits are context-dependent. Optimising outcomes while considering potential risks, targeting 65-70 b.p.m. for all HR thresholds above 70 b.p.m. seems reasonable.

Impact of Metabolic Syndrome Traits on Kidney Disease Risk in Individuals with MASLD: A UK Biobank Study

BACKGROUND AND AIMS

The impact of metabolic syndrome (MetS) traits on chronic kidney disease (CKD) risk in metabolic dysfunction-associated steatotic liver disease (MASLD) is unknown. We investigated the impact of type and number of MetS traits and liver fibrosis on prevalent CKD and incident end-stage renal disease (ESRD) risk in SLD.

METHODS

234 488 UK Biobank participants' were analysed. Hepatic steatosis index (> 36 for SLD, < 30 for no SLD) and MRI-proton density fat fraction (≥ 5.56%) were used to identify SLD. MetS traits were identified using MASLD criteria. Advanced fibrosis (FIB-4 score > 2.67) was determined using FIB-4 scores. eGFR < 60 mL/min/1.73 m2 or albuminuria > 3 mg/mmol identified prevalent CKD. A validated algorithm identified incident ESRD. Binary logistic and Cox regressions were used to test associations with prevalent CKD ([adjusted odds ratios (ORs)]) and incident ESRD (adjusted hazard ratios [HRs]) respectively.

RESULTS

102 410 participants (41.2%) had SLD. 64.4% had MetS. 1.3% had FIB-4 score > 2.67. With SLD and only one MetS trait, hypertension (OR 1.35, 95% CI 1.35-1.72) or type 2 diabetes (T2D) (OR 1.89, 95% CI 1.06-3.38) increased risk of prevalent CKD. MetS (≥ 3 traits) increased prevalent CKD risk (OR 1.94, 95% CI 1.75-2.15), which was further increased by advanced liver fibrosis (OR 4.29, 95% CI 3.36-5.47). CKD prevalence increased with increasing MetS traits. Over 13.6 years (median follow-up), MetS was associated with increased risk of developing ESRD (HR 1.70, 95% CI 1.19-2.43).

CONCLUSIONS

In MASLD, hypertension, and T2D, number of MetS traits and liver fibrosis increased risk of prevalent CKD and presence of MetS increased the risk of incident ESRD.

Comprehensive analysis of the ischemic stroke burden at global, regional, and national levels (1990-2021): trends, influencing factors, and future projections

Background and purpose

Estimating the global burden of ischemic strokes (IS) is crucial for enhancing prevention and control strategies.

Methods

We collected four epidemiological indicators-prevalence, incidence, deaths, and disability-adjusted life years (DALYs)-for ischemic stroke (IS) from the Global Burden of Disease (GBD) database, which covers the years 1990 to 2021. Our research analyzed the features of the IS burden and described the trends of these four indicators.

Results

The Joinpoint and age-period-cohort models reflected the changing trends in age-standardized indicators. Decomposition analysis examined the factors influencing each epidemiological indicator. The Bayesian Age-Period-Cohort (BAPC) model detailed changes in the number and rate of IS from 1990 to 2021 and projected trends through 2046. The Norpred model was used to verify the stability of the BAPC prediction results. The prevalence, incidence, deaths, and DALYs due to IS generally exhibited a downward trend. However, the predictions indicated that while the age-standardized incidence rate decreased from 1990 to 2015, this trend reversed between 2016 and 2021 and is expected to continue until 2046. This reversal is likely driven by factors such as population aging, given that age is a strongly correlated risk factor for IS. The IS burden was negatively associated with socio-demographic index (SDI) levels, with high systolic blood pressure identified as the largest risk factor for DALYs and deaths. The consistency between the BAPC and Norpred models enhances the reliability of these projections.

Conclusion

Over the past two decades, trends in prevalence, incidence, deaths, and DALYs have all declined. However, projections suggest that incidence will show an upward trend over the next two decades.

Intensive Home Blood Pressure Lowering in Patients With Advanced CKD

RATIONALE & OBJECTIVE

Optimal blood pressure (BP) targets in advanced chronic kidney disease (CKD) are controversial. More intensive BP lowering in the setting of advanced CKD is thought to be associated with risk of acute kidney injury, hyperkalemia, and end-stage kidney disease. We conducted a pilot trial of intensive BP control to determine if lower home systolic BP (SBP) targets can be safely achieved for patients with CKD through titration of BP medications using in-home measured BP.

STUDY DESIGN

Nonblinded randomized controlled trial.

SETTING & PARTICIPANTS

108 patients with advanced CKD (estimated glomerular filtration rate≤30mL/min/1.73m2) and hypertension.

INTERVENTIONS

Participants were randomized either to a target SBP goal of<120mm Hg (N=66) or a less intensive SBP goal (N=42). Antihypertensive medications were titrated to achieve the target home SBP range in the first 4 months of the study and maintained until the end of the study. Home BP was measured using a wireless Bluetooth-enabled monitor that transmitted readings to providers in real-time.

OUTCOME

The primary efficacy outcome was the difference in achieved clinic SBP between the 2 study arms from months 4-12. Safety outcomes included hyperkalemia, a composite outcome of falls or syncope, and onset of need for dialysis or kidney transplantation.

RESULTS

The mean clinic SBP at month 12 was 124.7mm Hg in the intensive SBP group versus 138.2mm Hg in the less intensive SBP group. Averaged over months 4-12, the achieved mean clinic SBP in the intensive SBP arm was 11.7mm Hg ([95% CI, 7.5-16], P<0.001), lower than the mean SBP achieved in the less intensive SBP arm. Primary safety outcomes were not statistically significantly different between the 2 arms (all P>0.05).

LIMITATIONS

Small sample size, which may have limited our ability to detect clinically significant differences in rates of adverse outcomes, and single-center design.

CONCLUSIONS

A clinic SBP goal of<120mm Hg is feasible to achieve with the help of real-time home BP monitoring and appears to be safe in this study population with advanced CKD. Larger trials to determine optimal BP targets in advanced CKD and the risks and benefits associated with more intensive BP control are warranted.

FUNDING

Grant from an educational institution (UCSF Research Allocation Program award).

TRIAL REGISTRATION

Registered at ClinicalTrials.gov with study number NCT02975505.

PLAIN-LANGUAGE SUMMARY

We conducted a pilot trial to test the feasibility of lowering blood pressure (BP) intensively through the use of home BP monitoring in patients with low kidney function. We found that home BP monitoring used to guide antihypertensive medication dosing permitted better BP control for patients with chronic kidney disease and did not appear to be associated with major adverse events.

Effects of valsartan vs amlodipine and achieved lower blood pressure on the incidence of end-stage kidney disease: The VALUE Trial

BACKGROUND

There is a paucity of data investigating the impact of antihypertensive drug classes and blood pressure (BP) treatment targets on the incidence of end-stage kidney disease (ESKD). In patients with high-risk hypertension aged 50-80 years or above, we aimed to, 1) compare effects of valsartan, an angiotensin receptor blocker, with amlodipine, a calcium channel blocker and, 2) assess the effect of achieving systolic BP <135 vs ≥135 mmHg on the ESKD incidence.

METHODS

The VALUE Trial was a multicenter prospective double-blinded randomized clinical trial in patients with essential hypertension and high cardiovascular risk including known coronary disease, left ventricular hypertrophy and previous stroke, in which ESKD was a secondary endpoint defined as progression to kidney transplant and/or dialysis. Patients were randomized to either valsartan or amlodipine, with other anti-hypertensive medications as add-on if needed to reach the systolic BP target of <140 mmHg. Cox proportional hazards ratio (HR) was used to compare different treatment groups and achieved systolic BP <135 with ≥135 mmHg, during 3-6 years of follow-up.

RESULTS

15,245 patients were randomized and followed until 63,631 patient-years with only 90 patients lost to follow-up. The primary outcome, a composite of cardiac morbidity and mortality, was neutral between valsartan and amlodipine. On valsartan 47 patients (0.61 %) and on amlodipine 50 patients (0.66 %) developed ESKD (HR=1.02, 95 % CI 0.68-1.52, p =0.94). Achieved SBP <135 mmHg was strongly related to less ESKD (n =9/5036 patients, 0.2 %) compared with achieved SBP ≥135 mmHg (n =73/8766 patients, 0.8 %) (HR=0.28, CI 0.14-0.58, p <0.001).

CONCLUSIONS

In hypertensive patients with a high cardiovascular risk, valsartan and amlodipine have a similar impact on the incidence of end-stage kidney disease. Achieving SBP <135 mmHg, averaging 128.8/77.3 mmHg, is highly efficacious in kidney protection.

Preserving renal function: gliflozins, GLP1 agonists, and antialdosterones

For a long time, a prognostic and therapeutic fatalism accompanied even the most motivated clinicians when they had to deal with a progressive decline in renal function; the modest successes were nullified by an increasingly aggressive syndrome whose therapy had remained the same for more than 30 years. In the meantime, the increased understanding of the physiopathological mechanisms connected to it had not been accompanied by an equal development of drugs capable of counteracting it, and this, also due to the progressive aging of the population, had rapidly made 'chronic kidney disease' (CKD) a problem of World Public Health due to its incidence, prevalence, and exponentially increasing costs in every part of the world. The progressive reduction of glomerular filtration rate, as has been known for some time, is accompanied by an increase in cardiovascular risk, understood as fatal and non-fatal heart attack, stroke, heart failure, and mortality. Therefore, every effort must be aimed at preventing or slowing the decline of renal function to reduce not only critical renal events (the need for dialysis or transplant among the most feared) but also the incidence of cardiovascular events. Since the disease is asymptomatic for a long time (it is often detected occasionally and with culpable delay), it is essential to make a correct and early assessment of renal function with appropriate methods. Once CKD was identified, clinicians, to slow its progression, could rely for a long time only on strict control of those risk factors most responsible for worsening it, such as diabetes and its complications, on the optimization of high blood pressure values and the mandatory use of drugs blocking the renin-angiotensin-aldosterone system, particularly in the presence of albuminuria. This strategy has proven to be only partially effective over time, and most patients still showed a progressive worsening of renal function. Only in the last few years have we had access to two classes of innovative drugs, such as gliflozins and incretins, that have imposed themselves on the therapeutic scene because they have shown that they can slow the progression of CKD, first in patients with Type 2 diabetes and subsequently in patients with CKD regardless of the presence or absence of diabetes. Unexpectedly and convincingly, they have also shown a significant impact on cardiovascular prognosis. Initially antidiabetic drugs, their efficacy has forced the reviewers of both cardiology and nephrology guidelines to indicate them among the drugs to use. Lately, the class of mineralocorticoid receptor antagonist drugs has been enriched by finerenone. This molecule has favourable pharmacokinetic characteristics compared with previous medications of the same class and tested in Phase 3, randomized, placebo-controlled trials (FIDELIO-DKD and FIGARO-DKD) which has been shown to significantly reduce the risk of cardiovascular and renal disease in diabetic patients compared with placebo.

Assessment of Blood Pressure Control Status Among Hypertensive Patients Attending Rwandan District Hospital NCD Clinics: A Retrospective Follow-Up Study

BACKGROUND

Hypertension is a major public health issue and a leading risk factor for cardiovascular disease (CVD). We assessed blood pressure (BP) control among adult hypertensive patients attending non-communicable disease (NCD) clinics in five Rwandan district hospitals.

METHODS

We extracted data on hypertensive management from five Rwandan district hospitals from June 2016 to August 2021. BP control was defined as systolic blood pressure (SBP) < 140 mmHg and diastolic blood pressure (DBP) < 90 mmHg measured within the last four months. We performed statistical analysis using chi-square tests and multivariate regression analyses with 95% confidence intervals (CI).

RESULTS

Blood pressure control was achieved in 41.5% of hypertensive patients (n = 438/1,055). The majority were aged > 60 years (mean age 62; n = 663/1,055; 62.8%), and women, with approximately three-quarters of patients (n = 796/1,055; 75.5%) had a BMI between 18.5 and 24.9 Kg/m2 and the majority (n = 843/1,055; 79.9%) resided in rural districts. More than half (n = 585/1,055; 55.5%) were taking two antihypertensive medications. Factors significantly associated with uncontrolled BP included BMI ≥ 30 kg/m2 (p < 0.001), use of Angiotensin-converting enzyme (ACE) inhibitors (p = 0.01), use of four antihypertensive drugs (p = 0.013), and missing an NCD clinic appointment (p < 0.001).

CONCLUSIONS

BP control rates among hypertensive patients attending NCD clinics remain low. Strengthening patient counseling, encouraging physical activity, and improving medication adherence are critical. Building the capacity of healthcare staff at both hospital and health centre levels is vital to improving hypertension management in NCD clinics.

The impact of chronic kidney disease on prognosis in acute stroke: unraveling the pathophysiology and clinical complexity for optimal management

BACKGROUND

Chronic kidney disease (CKD) significantly increases stroke risk and severity, posing challenges in both acute management and long-term outcomes. CKD contributes to cerebrovascular pathology through systemic inflammation, oxidative stress, endothelial dysfunction, vascular calcification, impaired cerebral autoregulation, and a prothrombotic state, all of which exacerbate stroke risk and outcomes.

METHODS

This review synthesizes evidence from peer-reviewed literature to elucidate the pathophysiological mechanisms linking CKD and stroke. It evaluates the efficacy and safety of acute reperfusion therapies-intravenous thrombolysis and endovascular thrombectomy-in CKD patients with acute ischemic stroke. Considerations, such as renal function, drug dosage adjustments, and the risk of contrast-induced nephropathy, are critically analyzed. Evidence-based recommendations and research priorities are drawn from an analysis of current practices and existing knowledge gaps.

RESULTS

CKD influences stroke outcomes through systemic and local pathophysiological changes, necessitating tailored therapeutic approaches. Reperfusion therapies are effective in CKD patients but require careful monitoring of renal function to mitigate risks, such as contrast-induced nephropathy and thrombolytic complications. The bidirectional relationship between stroke and CKD highlights the need for integrated management strategies to address both conditions. Early detection and optimized management of CKD significantly reduce stroke-related morbidity and mortality.

CONCLUSION

Optimizing stroke care in CKD patients requires a comprehensive understanding of their pathophysiology and clinical management challenges. This article provides evidence-based recommendations, emphasizing individualized treatment decisions and coordinated care. It underscores the importance of integrating renal considerations into stroke treatment protocols and highlights the need for future research to refine therapeutic strategies, address knowledge gaps, and consider tailored interventions to improve outcomes and quality of life for this high-risk population.

Can we slow down the decline in renal function?

The 'chronic kidney disease' (CKD) definition that best outlines the complex syndrome commonly called 'kidney failure' has become a problem of World Public Health due to its incidence and prevalence and due to exponentially increasing costs in every part of the world. The progressive reduction in the glomerular filtration rate, as known, goes hand in hand with an increase in cardiovascular risk understood as fatal and non-fatal heart attack, stroke, heart failure, and mortality. Therefore, every effort must aim at preventing or slowing down the decline in renal function in order to reduce not only critical renal events (the need for dialysis or transplantation among the most dreadful) but also the incidence of cardiovascular events. Since the disease is asymptomatic for a long time (often its detection is occasional and done with guilty delay), it is clearly important to make a correct and early evaluation of renal function with appropriate methods. Furthermore, it is crucial to make an aetiological diagnosis, when it is possible, of CKD because this will allow for the most targeted therapy possible. For a long time, an effective approach for the majority of people with CKD could only count on strict control of the diabetic disease and its complications, optimization of high blood pressure values, and the mandatory use of drugs blocking the renin-angiotensin-aldosterone system, particularly in the presence of albuminuria. Over time, this strategy proved to be only partially effective and the majority of patients nonetheless showed a progressive worsening of renal function. Only recently have we had access to two classes of innovative drugs such as glyphozines and incretins which have established themselves on the therapeutic scene because they have shown to be able to slow down the progression of CKD, first in patients with type 2 diabetes and subsequently in patients with CKD whether or not they have diabetes. Unexpectedly and convincingly, they have also been shown to significantly impact cardiovascular prognosis. From initially antidiabetic drugs, their effectiveness has forced the medical iconography to enrich itself with a new therapeutic niche by rightly speaking of 'cardio-nephro-metabolic' drugs.

Real-world effectiveness and safety of sodium-glucose co-transporter 2 inhibitors in chronic kidney disease

Sodium-glucose cotransporter-2 inhibitors (SGLT2i) have shown efficacy in clinical trials for slowing chronic kidney disease (CKD) progression, but real-world data in diverse populations are limited. This retrospective study evaluated the effectiveness and safety of SGLT2i versus renin-angiotensin-aldosterone system (RAAS) blockade in CKD patients. Data from Ramathibodi Hospital (2010-2022) were analyzed, including 6,946 adults with CKD stages 2-4, with and without diabetes, who received SGLT2i (n = 1,405) or RAAS blockade (n = 5,541) for at least three months. Patients were matched 1:4 by CKD stage and treatment initiation date. A weighted Cox proportional hazards model with inverse probability weighting assessed the effect on composite major adverse kidney events (MAKEs), including eGFR decline ≥ 40%, progression to CKD stage 5, dialysis initiation, and cardiovascular or kidney death. SGLT2i therapy was associated with a lower risk of composite MAKEs (HR: 0.59; 95% CI: 0.36-0.98; P = 0.041) and less frequent progression to CKD stage 5 (HR: 0.52; 95% CI: 0.34-0.80; P < 0.003). Adverse event rates were similar between groups, with lower urinary tract infection incidence in the SGLT2i group. These findings suggest SGLT2i therapy might reduce adverse kidney outcomes in CKD patients, regardless of diabetic status, with a favorable safety profile.

Acute kidney injury in critically ill COVID-19 patients in a tertiary hospital: short and long-term kidney and patient outcomes

INTRODUCTION

Acute kidney injury (AKI) in the setting of COVID-19 is associated with worse clinical and renal outcomes, with limited long-term data.

AIM

To evaluate critically ill COVID-19 patients with AKI that required nephrologist consultation (NC-AKI) in a tertiary hospital.

METHODS

Prospective single-center cohort of critically ill COVID-19 adult patients with NC-AKI from May 1st, 2020, to April 30th, 2021. Kidney replacement therapy (KRT), recovery of kidney function, and death at 90-day and 1-year follow-up were evaluated.

RESULTS

360 patients were included, 60.6% were male, median age was 66.0 (57.0-72.0) years, 38.1% had diabetes, and 68.6% had hypertension. AKI stages 1, 2, and 3 were detected in 3.6%, 5.6%, and 90.8% of patients, respectively. KRT was indicated in 90% of patients. At the 90-day follow-up, 88.1% of patients died and 10.0% had recovered kidney function. Female gender (p = 0.047), older age (p = 0.047), AKI stage 3 (p = 0.005), requirement of KRT (p < 0.0001), mechanical ventilation (p < 0.0001), and superimposed bacterial infection (p < 0.0001) were significantly associated death within 90 days. At 1 year, mortality was 89.3%. Amongst surviving patients, 72% recovered kidney function, although with significantly lower eGFR compared to baseline (85.5 ± 23.6 vs. 65.9 ± 24.8 mL/min, p = 0.003).

CONCLUSION

Critically ill COVID-19 patients with NC-AKI presented a high frequency of AKI stage 3 and KRT requirement, with a high 90-day mortality. Surviving patients had high rates of recovery of kidney function, with a lower eGFR at one-year follow-up compared to baseline.

2024 Latin American Society of Hypertension guidelines on the management of arterial hypertension and related comorbidities in Latin America

Hypertension is responsible for more than two million deaths due to cardiovascular disease annually in Latin America (LATAM), of which one million occurs before 70 years of age. Hypertension is the main risk factor for cardiovascular morbidity and mortality, affecting between 20 and 40% of LATAM adults. Since the publication of the 2017 LASH hypertension guidelines, reports from different LATAM countries have confirmed the burden of hypertension on cardiovascular disease events and mortality in the region. Many studies in the region have reported and emphasized the dramatically insufficient blood pressure control. The extremely low rates of awareness, treatment, and control of hypertension, particularly in patients with metabolic disorders, is a recognized severe problem in LATAM. Earlier implementation of antihypertensive interventions and management of all cardiovascular risk factors is the recognized best strategy to improve the natural history of cardiovascular disease in LATAM. The 2024 LASH guidelines have been developed by a large group of experts from internal medicine, cardiology, nephrology, endocrinology, general medicine, geriatrics, pharmacology, and epidemiology of different countries of LATAM and Europe. A careful search for novel studies on hypertension and related diseases in LATAM, together with the new evidence that emerged since the 2017 LASH guidelines, support all statements and recommendations. This update aims to provide clear, concise, accessible, and useful recommendations for health professionals to improve awareness, treatment, and control of hypertension and associated cardiovascular risk factors in the region.

Comparative Effectiveness of Calcium-Channel Blockers, Angiotensin-Converting Enzyme/Angiotensin Receptor Blockers and Diuretics on Cardiovascular Events Likelihood in Hypertensive African-American and Non-Hispanic Caucasians: A Retrospective Study Across HCA Healthcare

BACKGROUND

Hypertension, a leading global risk factor for mortality and disability, disproportionately affects racial and ethnic minorities. Our study investigates the association between the type of prior antihypertensive medication use and the likelihood of cardiovascular events (CVE) and assesses whether the patient's race influences this relationship.

METHODS

A retrospective study of 14 836 hypertension cases aged ≥ 40 years was conducted using data from HCA Healthcare between 2017 and 2023. Logistic regression was employed to predict the likelihood of CVE and mortality at admission, adjusting for baseline comorbidities, with Race added as an effect modifier. Interaction analysis was performed among races based on antihypertensive medication types.

RESULTS

African American patients on ACE inhibitors (ACE) or angiotensin receptor blockers (ARBs) were 1.7 times more likely to have cardiovascular events (CVE) compared to those on calcium channel blockers (CCBs) and 0.66 times as likely compared to diuretics. CCB users had a lower CVE risk than diuretic users. Among White patients, ACE/ARB users had a 1.18 times higher CVE risk than CCB users and 0.45 times lower compared to diuretics, while CCBs offered a 0.38 times lower risk than diuretics. Only ACE/ARB use showed significantly higher CVE odds for African Americans compared to White patients, with similar risks across racial groups for CCBs and diuretics.

CONCLUSION

Prior antihypertensive type significantly influenced CVE risk, with race as an effect modifier. CCB users had lower CVE odds than ACE/ARBs or diuretics, and ACE/ARBs showed reduced CVE likelihood compared to diuretics in both racial groups.

Hypertension and orthostatic hypotension in the elderly: a challenging balance

Hypertension and orthostatic hypotension (OH) frequently coexist in the older population, both stemming from impaired blood pressure (BP) regulation. Managing hypertension in patients with OH presents a significant clinical challenge, particularly in frail older adults who are also prone to falls. Hypertension treatment is often suboptimal in this population due to concerns over the potential increased risk of falls associated with treatment. However, current clinical guidelines provide limited guidance on managing this complex issue. This review explores the pathophysiology of hypertension and OH, reviews existing guidelines, and examines the evidence surrounding hypertension management in patients with OH. Additionally, we provide an overview of research focused on frail older adults and offer expert-opinion-based recommendations for the management of hypertension and OH in routine clinical practice.

Acute kidney injury in acute heart failure-when to worry and when not to worry?

Acute kidney injury is common in patients with acute decompensated heart failure. It is more common in patients with acute heart failure who suffer from chronic kidney disease. Worsening renal function is often defined as a rise in serum creatinine of more than 0.3 mg/dL (26.5 µmol/L) which, by definition, is acute kidney injury (AKI) stage 1. Perhaps the term AKI is more appropriate than worsening renal function as it is used universally by nephrologists, internists and other medical practitioners. In health, the heart and the kidney support each other to maintain the body's homeostasis. In disease, the heart and the kidney can adversely affect each other's function, causing further clinical deterioration. In patients presenting with acute heart failure and fluid overload, therapy with diuretics for decongestion often causes a rise in serum creatinine and AKI. However, in the longer term the decongestion improves survival and prevents hospital admissions despite rising serum creatinine and AKI. It is important to realize that renal venous congestion due to increased right-sided heart pressures in acute heart failure is a major cause of kidney dysfunction and hence decongestion therapy improves kidney function in the longer term. This review provides a perspective on the acceptable AKI with decongestion therapy, which is associated with improved survival, as opposed to AKI due to tubular injury related to sepsis or nephrotoxic drugs, which is associated with poor survival.

Unraveling Sex Differences in Kidney Health and CKD: A Review of the Effect of Sex Hormones

Sexual dimorphism plays an important role in the pathogenesis and progression of CKD. Men with CKD often exhibit faster kidney function decline, leading to higher rates of kidney failure and mortality compared with women. Studies suggest that sex hormones may influence this apparent dimorphism, although the mechanisms underlying these influences remain poorly understood. In this review, we first summarize recent findings on sex differences in the prevalence and progression of CKD. Subsequently, we will focus on ( 1 ) the role of sex hormones in these sex differences, ( 2 ) kidney structural and hemodynamic differences between men and women, ( 3 ) the influence of sex hormones on pathophysiological processes leading to kidney disease, including glomerular hyperfiltration and key pathways involved in kidney inflammation and fibrosis, and finally, focus on the consequences of the underrepresentation of women in clinical trials. Understanding these sex differences is critical for advancing precision medicine and improving outcomes for both men and women with CKD.

Use of consensus clustering to identify distinct subtypes of chronic kidney disease and associated mortality risk

BACKGROUND

Chronic kidney disease (CKD) is a complex condition with diverse etiology and outcomes. Utilizing a data-driven clustering approach holds promise in identifying distinct CKD subgroups associated with specific risk profiles for death.

METHODS

Unsupervised consensus clustering was utilized to classify chronic kidney disease (CKD) into subtypes based on 45 baseline characteristics in a cohort of 6,526 participants from the US National Health and Nutrition Examination Survey (NHANES) spanning the years 1999-2000 to 2017-2018.We examined the associations between CKD subgroups and clinical endpoints related to mortality, including all-cause mortality, cardiovascular disease mortality, cancer mortality, and mortality due to other causes.

RESULTS

A total of 6,526 individuals with CKD were classified into four clusters at baseline. Cluster 1 (n = 508) comprised patients with relatively favorable levels of cardiac and kidney function markers, lower prevalence of cancer and higher prevalence of obesity, lower medication usage, and younger age. Cluster 4 (n = 2,029) comprised patients with the worst cardiac and kidney function markers. The characteristics of cluster 2 (n = 1,439) and 3 (n = 2,550) fell in between these two clusters. From cluster 1 to cluster 4, we observed a gradual increase in the hazard ratios of all-cause mortality, cardiovascular disease mortality, and mortality due to other causes. Additionally, further sensitivity analysis revealed patient heterogeneity among predefined subgroups with similar baseline kidney function and mortality risks.

CONCLUSIONS

Consensus clustering integrated baseline clinical and laboratory measures, revealing distinct CKD subgroups with markedly different risks of death, suggesting that further examination of patient subgroups could advance precision medicine.

Guidelines for the management of hypertension in CKD patients: where do we stand in 2024?

Until recently, major bodies producing guidelines for the management of hypertension in patients with chronic kidney disease (CKD) disagreed in some key issues. In June 2023, the European Society of Hypertension (ESH) published the new 2023 ESH Guidelines for the management of arterial hypertension a document that was endorsed by the European Renal Association. Several novel recommendations relevant to the management of hypertension in patients with CKD appeared in these guidelines, which have been updated to reflect the latest evidence-based practices in managing hypertension in CKD patients. Most of these are in general agreement with the previous 2021 Kidney Disease: Improving Global Outcomes (KDIGO) guidelines-some reflect different emphasis on some topics (i.e. detailed algorithms on antihypertensive agent use) while others reflect evolution of important evidence in recent years. The aim of the present review is to summarize and comment on key points and main areas of focus in patients with CKD, as well as to compare and highlight the main differences with the 2021 KDIGO Guidelines for the management of blood pressure in CKD.

Proteomics and Incident Kidney Failure in Individuals With CKD: The African American Study of Kidney Disease and Hypertension and the Boston Kidney Biopsy Cohort

Rationale & Objective

Individuals with chronic kidney disease (CKD) are at increased risk of morbidity and mortality, particularly as they progress to kidney failure. Identifying circulating proteins that underlie kidney failure development may guide the discovery of new targets for intervention.

Study Design

Prospective cohort.

Setting & Participants

703 African American Study of Kidney Disease and Hypertension (AASK) and 434 Boston Kidney Biopsy Cohort (BKBC) participants with baseline proteomics data.

Exposures

Circulating proteins measured using SomaScan.

Outcomes

Kidney failure, defined as dialysis initiation or kidney transplantation.

Analytical Approach

Using adjusted Cox models, we studied associations of 6,284 circulating proteins with kidney failure risk separately in AASK and BKBC and meta-analyzed results. We then performed gene set enrichment analyses to identify underlying perturbations in biological pathways. In separate data sets with kidney-tissue level gene expression, we ascertained dominant regions of expression and correlated kidney tubular gene expression with fibrosis and estimated glomerular filtration rate (eGFR).

Results

Over median follow-up periods of 8.8 and 3.1 years, 210 AASK (mean age: 55 years, 39% female, mean GFR: 46 mL/min/1.73 m2) and 115 BKBC (mean age: 54 years, 47% female, mean eGFR: 51 mL/min/1.73 m2) participants developed kidney failure, respectively. We identified 143 proteins that were associated with incident kidney failure, of which only 1 (Testican-2) had a lower risk. Notable proteins included those related to vascular permeability (endothelial cell-selective adhesion molecule), glomerulosclerosis (ephrin-A1), glomerular development (ephrin-B2), intracellular sorting/transport (vesicular integral-membrane protein VIP36), podocyte effacement (pigment epithelium-derived factor), complement activation (complement decay-accelerating factor), and fibrosis (ephrin-A1, ephrin-B2, and pigment epithelium-derived factor). Gene set enrichment analyses detected overrepresented pathways that could be related to CKD progression, such as ephrin signaling, cell-cell junctions, intracellular transport, immune response, cell proliferation, and apoptosis. At the kidney level, glomerular expression predominated for genes corresponding to circulating proteins of interest, and several gene expression levels were correlated with eGFR and/or fibrosis.

Limitations

Possible residual confounding.

Conclusions

Multimodal data identified proteins and pathways associated with the development of kidney failure.

Novel biomarkers in patients with uncontrolled hypertension with and without kidney damage

INTRODUCTION

Estimated glomerular filtration rate (eGFR) and urine albumin/creatinine ratio (ACR) are insensitive biomarkers for early detection of hypertension-mediated organ damage (HMOD). In this nationwide cross-sectional study, we assessed potential biomarkers for early HMOD in healthy persons and patients with hypertension. We hypothesised that plasma levels of biomarkers: (1) are different between healthy controls and patients with hypertension, (2): can classify patients with hypertension according to the degree of hypertension severity.

DESIGN AND METHODS

Patients with hypertension prescribed ≥2 antihypertensive agents were selected from a multicentre study. Healthy controls were selected from an ongoing study of living kidney donor candidates. Uncontrolled hypertension was defined as systolic daytime ambulatory blood pressure ≥135 mmHg. Kidney HMOD was defined by ACR > 3.0 mg/mmol or eGFR < 60 mL/min/1.73 m2. Patients with hypertension were categorised into three groups: (1) controlled hypertension; (2) uncontrolled hypertension without kidney HMOD; (3) uncontrolled hypertension with kidney HMOD. Fifteen biomarkers were analysed using a Luminex bead-based immunoassay, and nine fell within the specified analytical range.

RESULTS

Plasma levels of Interleukin 1 receptor antagonist (IL-1RA), neutrophil gelatinase-associated lipocalin (NGAL) and uromodulin were significantly different between healthy controls (n = 39) and patients with hypertension (n = 176). In regression models, with controlled hypertension (n = 55) as the reference category, none of the biomarkers were associated with uncontrolled hypertension without (n = 59) and with (n = 62) kidney HMOD. In models adjusted for cardiovascular risk factors and eGFR, osteopontin (OPN) was associated with uncontrolled hypertension without kidney HMOD (odds ratio (OR) 1.77 (1.05-2.98), p = 0.03), and regulated upon activation normal T-cell expressed and secreted (RANTES) with uncontrolled hypertension with kidney HMOD (OR 0.57 (0.34-0.95), p = 0.03).

CONCLUSIONS

None of the biomarkers could differentiate our hypertension groups when established risk factors were considered. Plasma OPN may identify patients with uncontrolled hypertension at risk for kidney HMOD.

Current perspectives and trends of the research on hypertensive nephropathy: a bibliometric analysis from 2000 to 2023

Hypertensive nephropathy continues to be a major cause of end-stage renal disease and poses a significant global health burden. Despite the staggering development of research in hypertensive nephropathy, scientists and clinicians can only seek out useful information through articles and reviews, it remains a hurdle for them to quickly track the trend in this field. This study uses the bibliometric method to identify the evolutionary development and recent hotspots of hypertensive nephropathy. The Web of Science Core Collection database was used to extract publications on hypertensive nephropathy from January 2000 to November 2023. CiteSpace was used to capture the patterns and trends from multi-perspectives, including countries/regions, institutions, keywords, and references. In total, 557 publications on hypertensive nephropathy were eligible for inclusion. China (n = 208, 37.34%) was the most influential contributor among all the countries. Veterans Health Administration (n = 19, 3.41%) was found to be the most productive institution. Keyword bursting till now are renal fibrosis, outcomes, and mechanisms which are predicted to be the potential frontiers and hotspots in the future. The top seven references were listed, and their burst strength was shown. A comprehensive overview of the current status and research frontiers of hypertensive nephropathy has been provided through the bibliometric perspective. Recent advancements and challenges in hypertensive nephropathy have been discussed. These findings can offer informative instructions for researchers and scholars.

Elucidating the complex interplay between chronic kidney disease and hypertension

Chronic kidney disease (CKD) and hypertension share a complex relationship, each exacerbating the progression of the other. CKD contributes to hypertension by decreasing renal function, leading to fluid retention and increased plasma volume, whereas hypertension exacerbates CKD by increasing glomerular pressure and causing renal damage. This review examines the intertwined nature of CKD and hypertension, exploring the factors driving hypertension in CKD and how hypertension accelerates CKD progression. It discusses the role of the renin-angiotensin system and inflammatory cytokines in this relationship, as well as the potential of blood pressure management to slow renal decline. While studies suggest that meticulous blood pressure control can help attenuate CKD progression, optimal management strategies remain unclear and require further investigation. This review also evaluates the evidence surrounding strict antihypertensive therapy in patients with CKD, considering both diabetic and non-diabetic cases. It recommends blood pressure targets based on CKD stage and presence of diabetes, emphasizing the importance of individualized treatment approaches. Renin-angiotensin system inhibitors are highlighted as a key pharmacological intervention due to their renal protective effects, particularly in patients with CKD with proteinuria. However, evidence regarding their efficacy in patients with CKD but without proteinuria is inconclusive. This review underscores the need for comprehensive approaches to effectively address the intertwined nature of CKD and hypertension and calls for further research to optimize clinical management strategies in this complex interplay.

Heterogeneous afferent arteriolopathy: a key concept for understanding blood pressure-dependent renal damage

Hypertension, aging, and other factors are associated with arteriosclerosis and arteriolosclerosis, primary morphological features of nephrosclerosis. Although such pathological changes are not invariably linked with renal decline but are prevalent across chronic kidney disease (CKD), understanding kidney damage progression is more pragmatic than precisely diagnosing nephrosclerosis itself. Hyalinosis and medial thickening of the afferent arteriole, along with intimal thickening of small arteries, can disrupt the autoregulatory system, jeopardizing glomerular perfusion pressure given systemic blood pressure (BP) fluctuations. Consequently, such vascular lesions cause glomerular damage by inducing glomerular hypertension and ischemia at the single nephron level. Thus, the interaction between systemic BP and afferent arteriolopathy markedly influences BP-dependent renal damage progression in nephrosclerosis. Both dilated and narrowed types of afferent arteriolopathy coexist throughout the kidney, with varying proportions among patients. Therefore, optimizing antihypertensive therapy to target either glomerular hypertension or ischemia is imperative. In recent years, clinical trials have indicated that combining renin-angiotensin system inhibitors (RASis) and sodium-glucose transporter 2 inhibitors (SGLT2is) is superior to using RASis alone in slowing renal function decline, despite comparable reductions in albuminuria. The superior efficacy of SGLT2is may arise from their beneficial effects on both glomerular hypertension and renal ischemia. A comprehensive understanding of the interaction between systemic BP and heterogeneous afferent arteriolopathy is pivotal for optimizing therapy and mitigating renal decline in patients with CKD of any etiology. Therefore, in this comprehensive review, we explore the role of afferent arteriolopathy in BP-dependent renal damage.

Blood pressure targets for hypertension in people with chronic renal disease

BACKGROUND

Chronic kidney disease (CKD) is an independent risk factor for cardiovascular disease, development of end-stage renal disease, and all-cause mortality. It affects around 10% of the population worldwide. The prevalence of hypertension in people with CKD ranges from 22% in stage 1 to 80% in stage 4. Elevated arterial blood pressure is one of the major independent risk factors for adverse cardiovascular events. Thereby, reducing blood pressure to below standard targets may be beneficial but could also increase the risk of adverse events. The optimal blood pressure target in people with hypertension and CKD remains unknown.

OBJECTIVES

Primary: to compare the effects of standard and lower-than-standard blood pressure targets for hypertension in people with chronic kidney disease on mortality and morbidity outcomes. Secondary: to assess the magnitude of reductions in systolic and diastolic blood pressure, the proportion of participants reaching blood pressure targets, and the number of drugs necessary to achieve the assigned target.

SEARCH METHODS

We used standard, extensive Cochrane search methods. We searched the Cochrane Hypertension Specialized Register, CENTRAL, MEDLINE, Embase, one other database, and two trial registers up to 8 February 2023. We also contacted authors of relevant papers regarding further published and unpublished work. We applied no language restrictions.

SELECTION CRITERIA

We included randomized controlled trials (RCTs) in people with hypertension and CKD that provided at least twelve months' follow-up. Eligible interventions compared lower targets for systolic/diastolic blood pressure (130/80 mmHg or lower) to standard targets for blood pressure (140 to 160/90 to 100 mmHg or lower). Participants were adults with CKD and elevated blood pressure documented in a standard way on at least two occasions, or already receiving treatment for elevated blood pressure.

DATA COLLECTION AND ANALYSIS

We used standard Cochrane methods. Our critical outcomes were: total mortality, total serious adverse events, total cardiovascular events, cardiovascular mortality, and progression to end-stage renal disease. Important outcomes were: participant withdrawals due to adverse effects, and number of participants with a doubling of serum creatinine level or at least a 50% reduction in the glomerular filtration rate (GFR) at the end of the study. We used GRADE to assess the certainty of the evidence for the critical outcomes. This review received no funding.

MAIN RESULTS

We included six RCTs that contributed data for meta-analysis, involving 7348 participants overall (range 840 to 4733 people per study). The mean follow-up was 3.6 years (range 1.0 to 8.0 years). Three studies were publicly funded, two were privately funded, and one had both public and private funding. All RCTs provided individual participant data. None of the included studies blinded participants or clinicians because of the need to titrate antihypertensive drugs to reach a specific blood pressure target. However, an independent committee blinded to group allocation assessed clinical events in all studies. Critical outcomes. Compared with standard blood pressure targets, lower targets likely result in little to no difference in total mortality (risk ratio (RR) 0.90, 95% confidence interval (CI) 0.76 to 1.06; 6 studies, 7348 participants), total serious adverse events (RR 1.01, 95% CI 0.94 to 1.08; 6 studies, 7348 participants), and total cardiovascular events (RR 1.00, 95% CI 0.87 to 1.15; 5 studies, 6508 participants), all with moderate-certainty evidence. Compared with standard blood pressure targets, lower targets may result in little to no difference in cardiovascular mortality (RR 0.90, 95% CI 0.70 to 1.16; 6 studies, 7348 participants) and progression to end-stage renal disease (RR 0.94, 95% CI 0.80 to 1.11; 4 studies, 4788 participants), both with low-certainty evidence. Important outcomes. We found little to no differences in: participant withdrawals due to adverse effects; and the number of participants with a doubling of serum creatinine level, or at least a 50% reduction in GFR at the end of the study. Exploratory outcomes. Compared to the standard blood pressure target groups, participants in the lower target groups achieved lower systolic and diastolic blood pressure values after one year, and required a higher number of antihypertensive drugs at the end of the studies. A higher proportion of participants in the standard blood pressure target groups achieved the targets they were assigned than did participants in the intensive target groups.

AUTHORS' CONCLUSIONS

Compared to a standard blood pressure target, lower blood pressure targets probably result in little to no difference in total mortality, total serious adverse events, and total cardiovascular events, and may result in little to no difference in total cardiovascular mortality or in the progression to end-stage renal disease in people with hypertension and CKD. However, the evidence underpinning these conclusions has several limitations. All studies were open design, blood pressure measurement was performed at a medical office, and there was scant information about adverse events. Future research should include high-quality adverse event data, report results for people with different levels of proteinuria, and consider out-of-office blood pressure monitoring. Several studies are ongoing, and may provide new evidence for this topic in the near future.

Risk factors for chronic kidney disease progression over 20 years for primary prevention in Japanese individuals at a preventive medicine research center: Focus on the influence of plasma glucose levels

AIMS/INTRODUCTION

Chronic kidney disease (CKD) is a very important issue globally because of the risk of its progressing to end-stage renal disease. We aimed to identify factors contributing to long-term estimated glomerular filtration rate (eGFR) decline to determine an early diagnosis and prevent CKD progression.

MATERIALS AND METHODS

From January 2003 to December 2006, 5,507 individuals underwent health checkups at our hospital's Preventive Medicine Research Center. We ultimately enrolled 2,175 individuals. The eGFR was ≥60 mL/min/1.73 m2 at the start of observation period, which was 20 years. The event onset time was the day that the eGFR became <30 mL/min during the 20-year period. Baseline risk factors - in particular, the effect of plasma glucose levels on the eGFR - were extracted and evaluated by using Fine and Gray analysis.

RESULTS

During the 20-year observation, the hazard ratio (HR) of CKD progression was examined. A fasting plasma glucose (FPG) level ≥105 mg/dL was significantly associated with the risk of CKD progressing to an eGFR <30 mL/min. This trend was similar in the slope of eGFR. An FPG ≥105 mg/dL or an glycated hemoglobin level ≥6.5% was useful for intervening in CKD progression. Multivariate analysis showed that independent risk factors were an FPG level ≥105 mg/dL (HR 1.9; P < 0.001), age ≥60 years (HR 3.86; P < 0.001), obesity (HR 1.61; P < 0.01) and urinary protein (HR 1.55; P < 0.01).

CONCLUSIONS

For early intervention against a reduction in the eGFR, detecting mild increases in FPG ≥105 mg/dL in patients with CKD with or without diabetes is useful.

Cardiac Effects of Renin-Angiotensin System Inhibitors in Nonproteinuric CKD

BACKGROUND

In contrast to proteinuric chronic kidney disease (CKD), the relative cardioprotective benefits of antihypertensive medications in nonproteinuric CKD are unknown. We examined long-term cardiovascular outcomes and mortality in patients with nonproteinuric CKD treated with renin-angiotensin system inhibitors (RASIs) versus other antihypertensive medications.

METHODS

Among participants of the CRIC study (Chronic Renal Insufficiency Cohort) without proteinuria, we used intention-to-treat analyses with inverse probability of treatment weighting and Cox proportional hazards modeling to determine the association of RASIs versus other antihypertensive medications with a composite cardiovascular outcome (myocardial infarction, stroke, heart failure hospitalization, and death) and mortality. Secondary analyses included per-protocol analyses accounting for continuous adherence and time-updated analyses accounting for the proportion of time using RASIs during follow-up.

RESULTS

A total of 2806 participants met the inclusion criteria. In the intention-to-treat analyses, RASIs versus other antihypertensive medications were not associated with an appreciable difference in cardiovascular events (adjusted hazard ratio [aHR], 0.94 [95% CI, 0.80-1.11]) or mortality (aHR, 1.06 [95% CI, 0.88-1.28]). In the per-protocol analyses, RASIs were associated with a lower risk of adverse cardiovascular events (aHR, 0.78 [95% CI, 0.63-0.97]) and mortality (aHR, 0.64 [95% CI, 0.48-0.85]). Similarly, in the time-updated analyses, a higher proportion of RASI use over time was associated with a lower mortality risk (aHR, 0.33 [95% CI, 0.14-0.86]).

CONCLUSIONS

Among individuals with nonproteinuric CKD, after accounting for time-updated use, RASIs are associated with fewer cardiovascular events and a lower mortality risk compared with other antihypertensive medications. Patients with nonproteinuric CKD may benefit from prioritizing RASIs for hypertension management.

Association between Acute Declines in eGFR during Renin-Angiotensin System Inhibition and Risk of Adverse Outcomes

Key Points

Renin-angiotensin system inhibition was favorable for risk of kidney failure (compared with 0% decline with use of placebo or other agents) up to declines in eGFR of 13% over a 3-month period. Relation between eGFR decline after renin-angiotensin system inhibitor initiation and risk of outcomes was stronger in the first 2 years of follow-up and waned over time.

Background

Declines in GFR occur commonly when renin-angiotensin system (RAS) inhibitors are started. Our objective was to determine the relation between declines in eGFR during trials of RAS inhibition and kidney outcomes.

Methods

We included participants with CKD (eGFR <60 ml/min per 1.73 m2) from 17 trials of RAS inhibition. The exposure was subacute declines in eGFR expressed as % change between randomization and month 3, and in the subset of trials with data available, we also examined % change in eGFR between randomization and month 1. The primary outcome was kidney failure with replacement therapy. Cox proportional hazards models were used to examine the association between subacute declines in eGFR and risk of kidney failure. We used spline models to identify the threshold of change in eGFR below which RAS inhibition was favorable (conservatively comparing a given decline in eGFR with RAS inhibition to no decline in the comparator).

Results

A total of 11,800 individuals with mean eGFR 43 (SD 11) ml/min per 1.73 m2 and median urine albumin-to-creatinine ratio of 362 mg/g (interquartile range, 50–1367) were included, and 1162 (10%) developed kidney failure. The threshold of decline in eGFR that favored the use of RAS inhibitors for kidney failure was estimated to be up to 13% (95% confidence interval, 8% to 17%) over a 3-month interval and up to 21% (95% confidence interval, 15% to 27%) over a 1-month interval after starting RAS inhibitors.

Conclusions

In patients treated with RAS inhibitors, ≤13% decline in eGFR over a 3-month period or ≤21% decline over a 1-month period was associated with lower risk of kidney failure compared with no decline in those assigned to placebo or other agents.

Bridging the Gap: Tackling Racial and Ethnic Disparities in Hypertension Management

Hypertension is a prevalent health concern with significant implications for cardiovascular disease risk, affecting diverse populations worldwide and imposing substantial health system burdens. This review article explores racial and ethnic disparities in hypertension prevalence, treatment, and management, highlighting the disproportionate impact on minority populations. Certain racial and ethnic groups in the United States exhibit higher prevalence rates of hypertension and related complications due to a confluence of genetic, social, and economic factors. Despite comparable treatment rates, blood pressure control is often less effective among these groups, partly due to less intensive treatment and systemic barriers to care. Different populations encounter unique challenges, with prevalence and control rates influenced by dietary habits, socioeconomic status, and healthcare disparities. This review summarizes current management practices and highlights the necessity for tailored approaches that consider ethnic-specific treatment responses. It underscores the importance of addressing socioeconomic and cultural barriers while incorporating both pharmacological and nonpharmacological treatments. Future research should focus on developing culturally relevant assessment tools, enhancing data collection, and evaluating interventions designed to mitigate these disparities. To promote health equity and optimize the management of hypertension in a variety of populations, it is imperative to address these inequities using individualized, evidence-based strategies.

Blood pressure targets, medication consideration and special concerns in elderly hypertension part I: General principles and special considerations

To achieve a consensus on optimal blood pressure (BP) targets for older adults remains challenging, necessitating a trade-off between cardiovascular benefits and the risk of impaired organ perfusion. Evidence suggests that age and frailty have a minimal influence on the cardiovascular benefits of intensive BP control in community-dwelling elderly. Nonetheless, an increased incidence of acute kidney injury with intensive BP control has been observed in octogenarians. Therefore, it is recommended to maintain systolic BP below 130 mmHg for hypertensive patients aged 65-80 years. If well-tolerated, a systolic BP target below 120 mmHg can be recommended for patients with chronic kidney disease (CKD). However, no conclusive evidence supports a stringent BP target for patients aged 80 years and older. The selection of antihypertensive medications for elderly patients requires consideration of their cardiovascular condition and potential contraindications. Combination therapy may be necessary to achieve the desired BP target. Angiotensin-converting enzyme inhibitors or angiotensin receptor blockers are the primary choices for patients with CKD. Newer generation mineralocorticoid receptor antagonists may further reduce the risk of cardiovascular or renal events in this population. In conclusion, managing hypertension in elderly patients requires a personalized approach that balances cardiovascular benefits with potential risks, considering individual health profiles and tolerability.

Mineralocorticoid Receptor Antagonists in Diabetic Kidney Disease: Clinical Evidence and Potential Adverse Events

Diabetic kidney disease (DKD) is the leading cause of chronic kidney disease (CKD) globally and is associated with an increased risk of developing cardiovascular disease (CVD). DKD management requires a multipronged approach to decrease the progression of CKD and CVD. Mineralocorticoid receptor antagonists (MRAs) added to renin-angiotensin-aldosterone system blockade and sodium-glucose cotransporter 2 inhibitor therapy reduce the incidence of cardiovascular outcomes and progression of CKD. This review examines the cardiorenal benefits of MRAs and summarizes evidence on potential risks for acute kidney injury, hyperkalemia, and sexual dysfunction for steroidal and nonsteroidal MRAs.

Screening and management of hypertensive patients with chronic kidney disease referred to Hypertension Excellence Centres among 27 countries. A pilot survey based on questionnaire

OBJECTIVE

Real-life management of hypertensive patients with chronic kidney disease (CKD) is unclear.

METHODS

A survey was conducted in 2023 by the European Society of Hypertension (ESH) to assess management of CKD patients referred to ESH-Hypertension Excellence Centres (ESH-ECs) at first referral visit. The questionnaire contained 64 questions with which ESH-ECs representatives were asked to estimate preexisting CKD management quality.

RESULTS

Overall, 88 ESH-ECs from 27 countries participated (fully completed surveys: 66/88 [75.0%]). ESH-ECs reported that 28% (median, interquartile range: 15-50%) had preexisting CKD, with 10% of them (5-30%) previously referred to a nephrologist, while 30% (15-40%) had resistant hypertension. The reported rate of previous recent (<6 months) estimated glomerular filtration rate (eGFR) and urine albumin-creatinine ratio (UACR) testing were 80% (50-95%) and 30% (15-50%), respectively. The reported use of renin-angiotensin system blockers was 80% (70-90%). When a nephrologist was part of the ESH-EC teams the reported rates SGLT2 inhibitors (27.5% [20-40%] vs. 15% [10-25], P  = 0.003), GLP1-RA (10% [10-20%] vs. 5% [5-10%], P  = 0.003) and mineralocorticoid receptor antagonists (20% [10-30%] vs. 15% [10-20%], P  = 0.05) use were greater as compared to ESH-ECs without nephrologist participation. The rate of reported resistant hypertension, recent eGFR and UACR results and management of CKD patients prior to referral varied widely across countries.

CONCLUSIONS

Our estimation indicates deficits regarding CKD screening, use of nephroprotective drugs and referral to nephrologists before referral to ESH-ECs but results varied widely across countries. This information can be used to build specific programs to improve care in hypertensives with CKD.

Acute Declines in Estimated Glomerular Filtration Rate in Patients Treated With Benazepril and Hydrochlorothiazide Versus Amlodipine and Risk of Cardiovascular Outcomes

BACKGROUND

Acute declines in estimated glomerular filtration rate (eGFR) occur commonly after starting angiotensin-converting enzyme inhibitors. Whether declines in eGFR that occur after simultaneously starting angiotensin-converting enzyme inhibitors with other antihypertensive agents modifies the benefits of these agents on cardiovascular outcomes is unclear.

METHODS AND RESULTS

We identified predictors of acute declines in eGFR (>15% over 3 months) during randomization to benazepril plus amlodipine versus benazepril plus hydrochlorothiazide in the ACCOMPLISH (Avoiding Cardiovascular Events through Combination Therapy in Patients Living with Systolic Hypertension) trial. We then determined the relation between declines in eGFR (treated as a binary variable, ≤15% versus >15% and separately, as a restricted spline variable) and the composite risk of fatal and nonfatal cardiovascular events using Cox proportional hazards models. We included 10 714 participants (median age 68 years [Q1 63, Q3 73]), of whom 1024 reached the trial end point over median follow-up of 2.8 years. Predictors of acute declines in eGFR>15% over 3 months included assignment to hydrochlorothiazide (versus amlodipine) and higher baseline albuminuria. Overall, declines in eGFR ≥15% (versus <15%) were associated with a 26% higher hazard of cardiovascular outcomes (95% CI, 1.07-1.48). In spline-based analysis, risk for cardiovascular outcomes was higher in the hydrochlorothiazide arm at every level of decline in eGFR compared with the same magnitude of eGFR decline in the amlodipine arm.

CONCLUSION

Combined use of benazepril and amlodipine remains superior to benazepril and hydrochlorothiazide for cardiovascular outcomes, regardless of the magnitude of the decline in eGFR that occurred with initiation of therapy.

Dihydropyridine Calcium Channel Blockers and Kidney Outcomes

BACKGROUND

Early trials of dihydropyridine calcium channel blockers (DCCBs) suggest a detrimental effect on intraglomerular pressure and an association with albuminuria.

OBJECTIVE

We sought to evaluate the associations of DCCB initiation with albuminuria and kidney failure with replacement therapy (KFRT) and to determine whether renin-angiotensin system (RAS) blockade modified these associations.

DESIGN

We conducted a target trial emulation study using a new user, active comparator design and electronic health record data from Geisinger Health.

PARTICIPANTS

We included patients without severe albuminuria or KFRT who were initiated on a DCCB or thiazide (active comparator) between January 1, 2004, and December 31, 2019.

MAIN MEASURES

Using inverse probability of treatment weighting, we performed doubly robust Cox proportional hazards regression to estimate the association of DCCB initiation with incident severe albuminuria (urine albumin to creatinine ratio > 300 mg/g) and KFRT, overall and stratified by RAS blocker use.

KEY RESULTS

There were 11,747 and 26,758 eligible patients initiating a DCCB and thiazide, respectively, with a weighted baseline mean age of 60 years, systolic blood pressure of 143 mm Hg, and eGFR of 86 mL/min/1.73 m2, and with a mean follow-up of 8 years. Compared with thiazides, DCCBs were significantly associated with the development of severe albuminuria (hazard ratio [HR], 1.29; 95% confidence interval [CI], 1.16-1.43), with attenuation of risk in the presence of RAS blockade (P for interaction < 0.001). The risk of KFRT was increased among patients without RAS blockade (HR, 1.66; 95% CI, 1.19-2.31), but not with RAS blockade (P for interaction = 0.005).

CONCLUSIONS

DCCBs were associated with increased risk of albuminuria and, in the absence of RAS blockade, KFRT. These findings suggest coupling DCCB therapy with RAS blockade may mitigate adverse kidney outcomes.

Overview of clinical status, treatment, and long-term outcomes of pediatric autosomal-dominant polycystic kidney disease: a nationwide survey in Taiwan

This retrospective study investigated the incidence, medication use, and outcomes in pediatric autosomal-dominant polycystic kidney disease (ADPKD) using Taiwan's National Health Insurance Research Database (NHIRD). A 1:4 matched control group of individuals included in the NHIRD during the same period was used for comparative analyses. A total of 621 pediatric patients were identified from 2009 to 2019 (mean age, 9.51 ± 6.43 years), and ADPKD incidence ranged from 2.32 to 4.45 per 100,000 individuals (cumulative incidence, 1.26-1.57%). The incidence of newly developed hypertension, anti-hypertensive agent use, nephrolithiasis, and proteinuria were significantly higher in the ADPKD group than the non-ADPKD group (0.7 vs. 0.04, 2.26 vs. 0.30, 0.4 vs. 0.02, and 0.73 vs. 0.05 per 100 person-years, respectively). The adjusted hazard ratios for developing hypertension, proteinuria, nephrolithiasis and anti-hypertensive agent use in cases of newly-diagnosed pediatric ADPKD were 12.36 (95% CI 4.92-31.0), 13.49 (95% CI 5.23-34.79), 13.17 (95% CI 2.48-69.98), and 6.38 (95% CI 4.12-9.89), respectively. The incidence of congenital cardiac defects, hematuria, urinary tract infections, gastrointestinal diverticulosis, dyslipidemia, and hyperuricemia were also higher in the ADPKD group. Our study offers valuable insights into the epidemiology of pediatric ADPKD in Taiwan and could help in formulating guidelines for its appropriate management.

Predicting chronic responses to calcium channel blockade with a virtual population of African Americans with hypertensive chronic kidney disease

Chronic kidney disease (CKD) is associated with the progressive loss of functional nephrons and hypertension (HTN). Clinical studies demonstrate calcium channel blocker (CCB) therapy mitigates the decline in renal function in humans with essential HTN. However, there are few long-term clinical studies that determine the impact of CCBs in patients with hypertensive CKD. African Americans (AA) have a higher prevalence of CKD and a faster progression to total kidney failure as compared to the white population but the mechanisms are poorly understood. Both clinical evidence (the African American Study of Kidney Disease and Hypertension, or AASK trial) and experimental studies have demonstrated that CCB may expose glomerular capillaries to high systemic pressures and exacerbate CKD progression. Therefore, using a large physiological model, we set out to replicate the AASK trial findings, predict renal hemodynamic responses and the role of the renin-angiotensin system during CCB antihypertensive therapy in a virtual population, and hypothesize mechanisms underlying those findings. Our current mathematical model, HumMod, is comprised of integrated systems that play an integral role in long-term blood pressure (BP) control such as neural, endocrine, circulatory, and renal systems. Parameters (n=341) that control these systems were randomly varied and resulted in 1400 unique models that we define as a virtual population. We calibrated these models to individual patient level data from the AASK trial: BP and glomerular filtration rate (GFR) before and after 3 years of amlodipine (10 mg/day). After calibration, the new virtual population (n=165) was associated with statistically similar BP and GFR before and after CCB. Baseline factors such as elevated single nephron GFR and low tubuloglomerular feedback were correlated with greater declines in renal function and increased glomerulosclerosis after 3 years of CCB. Blocking the renin-angiotensin system (RAS) in the virtual population decreased glomerular pressure, limited glomerular damage, and further decreased BP (-14 ± 8 mmHg) as compared to CCB alone (-11 ± 9 mmHg). Our simulations echo the potential risk of CCB monotherapy in AA CKD patients and support blockade of the renin angiotensin system as a valuable tool in renal disease treatment when combined with CCB therapy.

Managing cardiovascular risk factors in patients with chronic kidney disease: pharmacological and non-pharmacological interventions in the Copenhagen CKD Cohort

Background

Although cardiovascular morbidity and mortality are substantial in patients with chronic kidney disease (CKD), guideline-directed treatment of cardiovascular risk factors remains a challenge.

Methods

Observational, cross-sectional study including patients aged 30-75 years with CKD stage 1-5 without kidney replacement therapy from a tertiary hospital outpatient clinic. Data were obtained through patient interview, clinical examination, biochemical work-up, and evaluation of medical records and prescription redemptions. Guideline-directed treatment was evaluated as pharmacological interventions: antihypertensive and lipid-lowering therapy including adverse effects and adherence estimated as medication possession ratio (MPR); and non-pharmacological interventions: smoking status, alcohol consumption, body mass index (BMI), and physical activity.

Results

The cohort comprised 741 patients, mean age 58 years, 61.4% male, 50.6% CKD stage 3, 61.0% office blood pressure ≤140/90 mmHg. Antihypertensives were prescribed to 87.0%, median number of medications 2 (IQR 1;3), 70.1% received renin-angiotensin system inhibition, 25.9% reported adverse effects. Non-adherence (MPR < 80%) was present in 23.4% and associated with elevated blood pressure (OR 1.53 (95% CI 1.03;2.27)) and increased urinary albumin excretion, P < 0.001. Lipid-lowering treatment was prescribed to 54.0% of eligible patients, 11.1% reported adverse effects, and 28.5% were non-adherent, which was associated with higher LDL cholesterol, P = 0.036. Overall, 19.2% were current smokers, 16.7% overconsumed alcohol according to Danish health authority recommendations 69.3% had BMI ≥ 25 kg/m2, and 38.3% were physically active <4 hours/week. Among patients prescribed antihypertensives, 51.9% reported having received advice on non-pharmacological interventions.

Conclusions

Improved management of cardiovascular risk in patients with CKD entails intensified medical treatment and increased focus on patient adherence and non-pharmacological interventions.

Angiotensin-Converting Enzyme Inhibitors or Angiotensin-Receptor Blockers for Advanced Chronic Kidney Disease : A Systematic Review and Retrospective Individual Participant-Level Meta-analysis of Clinical Trials

BACKGROUND

In patients with advanced chronic kidney disease (CKD), the effects of initiating treatment with an angiotensin-converting enzyme inhibitor (ACEi) or angiotensin-receptor blocker (ARB) on the risk for kidney failure with replacement therapy (KFRT) and death remain unclear.

PURPOSE

To examine the association of ACEi or ARB treatment initiation, relative to a non-ACEi or ARB comparator, with rates of KFRT and death.

DATA SOURCES

Ovid Medline and the Chronic Kidney Disease Epidemiology Collaboration Clinical Trials Consortium from 1946 through 31 December 2023.

STUDY SELECTION

Completed randomized controlled trials testing either an ACEi or an ARB versus a comparator (placebo or antihypertensive drugs other than ACEi or ARB) that included patients with a baseline estimated glomerular filtration rate (eGFR) below 30 mL/min/1.73 m2.

DATA EXTRACTION

The primary outcome was KFRT, and the secondary outcome was death before KFRT. Analyses were done using Cox proportional hazards models according to the intention-to-treat principle. Prespecified subgroup analyses were done according to baseline age (<65 vs. ≥65 years), eGFR (<20 vs. ≥20 mL/min/1.73 m2), albuminuria (urine albumin-creatinine ratio <300 vs. ≥300 mg/g), and history of diabetes.

DATA SYNTHESIS

A total of 1739 participants from 18 trials were included, with a mean age of 54.9 years and mean eGFR of 22.2 mL/min/1.73 m2, of whom 624 (35.9%) developed KFRT and 133 (7.6%) died during a median follow-up of 34 months (IQR, 19 to 40 months). Overall, ACEi or ARB treatment initiation led to lower risk for KFRT (adjusted hazard ratio, 0.66 [95% CI, 0.55 to 0.79]) but not death (hazard ratio, 0.86 [CI, 0.58 to 1.28]). There was no statistically significant interaction between ACEi or ARB treatment and age, eGFR, albuminuria, or diabetes (P for interaction > 0.05 for all).

LIMITATION

Individual participant-level data for hyperkalemia or acute kidney injury were not available.

CONCLUSION

Initiation of ACEi or ARB therapy protects against KFRT, but not death, in people with advanced CKD.

PRIMARY FUNDING SOURCE

National Institutes of Health. (PROSPERO: CRD42022307589).

Impact of baseline cardiovascular risk on the outcomes of intensive blood pressure intervention: a post hoc analysis of the China rural hypertension control project

BACKGROUND

The 2018/2023 ESC/ESH Guidelines underlined a gap how baseline cardiovascular disease (CVD) risk predicted blood pressure (BP) lowering benefits. Further, 2017 ACC/AHA Guideline and 2021 WHO Guideline recommended implementation studies about intensive BP control. Now, to bridge these guideline gaps, we conducted a post hoc analysis to validate whether the baseline CVD risk influences the effectiveness of the intensive BP control strategy, which was designed by China Rural Hypertension Control Project (CRHCP).

METHODS

This is a post hoc analysis of CRHCP, among which participants were enrolled except those having CVD history, over 80 years old, or missing data. Subjects were stratified into quartiles by baseline estimated CVD risk and then grouped into intervention and usual care group according to original assignment in CRHCP. Participants in the intervention group received an integrated, multi-faceted treatment strategy, executed by trained non-physician community health-care providers, aiming to achieve a BP target of < 130/80 mmHg. Cox proportional-hazards models were used to estimate the hazard ratios of outcomes for intervention in each quartile, while interaction effect between intervention and estimated CVD risk quartiles was additionally assessed. The primary outcome comprised myocardial infarction, stroke, hospitalization for heart failure, or CVD deaths.

RESULTS

Significant lower rates of primary outcomes for intervention group compared with usual care for each estimated CVD risk quartile were reported. The hazard ratios (95% confidence interval) in the four quartiles (from Q1 to Q4) were 0.59 (0.40, 0.87), 0.54 (0.40, 0.72), 0.72 (0.57, 0.91) and 0.65 (0.53, 0.80), respectively (all Ps < 0.01). There's no significant difference of hazard ratios by intervention across risk quartiles (P for interaction = 0.370). Only the relative risk of hypotension, not symptomatic hypotension, was elevated in the intervention group among upper three quartiles.

CONCLUSIONS

Intensive BP lowering strategy designed by CRHCP group was effective and safe in preventing cardiovascular events independent of baseline CVD risk.

TRIAL REGISTRATION

The trial is registered with ClinicalTrials.gov, NCT03527719.

Reviving Decades-Old Wisdom: Longitudinal Analysis of Renin-Angiotensin System Inhibitors and Its Effects on Acute Ischemic Stroke to Improve Outcomes

BACKGROUND

While renin-angiotensin system (RAS) inhibitors have a longstanding history in blood pressure control, their suitability as first-line in-patient treatment may be limited due to prolonged half-life and kidney failure concerns.

METHODS

Using a cohort design, we assessed the impact of RAS inhibitors, either alone or in combination with beta-blockers, on mortality, while exploring interactions, including those related to end-stage renal disease and serum creatinine levels. Eligible subjects were Acute Ischemic Stroke (AIS) patients aged 18 or older with specific subtypes who received in-patient antihypertensive treatment. The primary outcome was mortality rates. Statistical analyses included cross-sectional and longitudinal approaches, employing generalized linear models, G-computation, and discrete-time survival analysis over a 20-day follow-up period.

RESULTS

In our study of 3,058 AIS patients, those using RAS inhibitors had significantly lower in-hospital mortality (2.2%) compared to non-users (12.1%), resulting in a relative risk (RR) of 0.18 (95% CI: 0.12-0.26). Further analysis using G-computation revealed a marked reduction in mortality risk associated with RAS inhibitors (0.0281 vs. 0.0913, risk difference [RD] of 6.31% or 0.0631, 95% CI: 0.046-0.079). Subgroup analysis demonstrated notable benefits, with individuals having creatinine levels below and above 1.3 mg/dl exhibiting statistically significant RD (RD -0.0510 vs. -0.0895), and a significant difference in paired comparison (-0.0385 or 3.85%, CI 0.023-0.054). Additionally, longitudinal analysis confirmed a consistent daily reduction of 0.93% in mortality risk associated with the intake of RAS inhibitors.

CONCLUSIONS

RAS inhibitors are associated with a significant reduction in in-hospital mortality in AIS patients, suggesting potential clinical benefits in improving patient outcomes.

A European Renal Association (ERA) synopsis for nephrology practice of the 2023 European Society of Hypertension (ESH) Guidelines for the Management of Arterial Hypertension

In June 2023, the European Society of Hypertension (ESH) presented and published the new 2023 ESH Guidelines for the Management of Arterial Hypertension, a document that was endorsed by the European Renal Association (ERA). Following the evolution of evidence in recent years, several novel recommendations relevant to the management of hypertension in patients with chronic kidney disease (CKD) appeared in these Guidelines. These include recommendations for target office blood pressure (BP) <130/80 mmHg in most and against target office BP <120/70 mmHg in all patients with CKD; recommendations for use of spironolactone or chlorthalidone for patients with resistant hypertension with estimated glomerular filtration rate (eGFR) higher or lower than 30 mL/min/1.73 m2, respectively; use of a sodium-glucose cotransporter 2 inhibitor for patients with CKD and estimated eGFR ≥20 mL/min/1.73 m2; use of finerenone for patients with CKD, type 2 diabetes mellitus, albuminuria, eGFR ≥25 mL/min/1.73 m2 and serum potassium <5.0 mmol/L; and revascularization in patients with atherosclerotic renovascular disease and secondary hypertension or high-risk phenotypes if stenosis ≥70% is present. The present report is a synopsis of sections of the ESH Guidelines that are relevant to the daily clinical practice of nephrologists, prepared by experts from ESH and ERA. The sections summarized are those referring to the role of CKD in hypertension staging and cardiovascular risk stratification, the evaluation of hypertension-mediated kidney damage and the overall management of hypertension in patients with CKD.

Clinical Decision Support for Hypertension Management in Chronic Kidney Disease: A Randomized Clinical Trial

Importance

Chronic kidney disease (CKD) affects 37 million adults in the United States, and for patients with CKD, hypertension is a key risk factor for adverse outcomes, such as kidney failure, cardiovascular events, and death.

Objective

To evaluate a computerized clinical decision support (CDS) system for the management of uncontrolled hypertension in patients with CKD.

Design, Setting, and Participants

This multiclinic, randomized clinical trial randomized primary care practitioners (PCPs) at a primary care network, including 15 hospital-based, ambulatory, and community health center-based clinics, through a stratified, matched-pair randomization approach February 2021 to February 2022. All adult patients with a visit to a PCP in the last 2 years were eligible and those with evidence of CKD and hypertension were included.

Intervention

The intervention consisted of a CDS system based on behavioral economic principles and human-centered design methods that delivered tailored, evidence-based recommendations, including initiation or titration of renin-angiotensin-aldosterone system inhibitors. The patients in the control group received usual care from PCPs with the CDS system operating in silent mode.

Main Outcomes and Measures

The primary outcome was the change in mean systolic blood pressure (SBP) between baseline and 180 days compared between groups. The primary analysis was a repeated measures linear mixed model, using SBP at baseline, 90 days, and 180 days in an intention-to-treat repeated measures model to account for missing data. Secondary outcomes included blood pressure (BP) control and outcomes such as percentage of patients who received an action that aligned with the CDS recommendations.

Results

The study included 174 PCPs and 2026 patients (mean [SD] age, 75.3 [0.3] years; 1223 [60.4%] female; mean [SD] SBP at baseline, 154.0 [14.3] mm Hg), with 87 PCPs and 1029 patients randomized to the intervention and 87 PCPs and 997 patients randomized to usual care. Overall, 1714 patients (84.6%) were treated for hypertension at baseline. There were 1623 patients (80.1%) with an SBP measurement at 180 days. From the linear mixed model, there was a statistically significant difference in mean SBP change in the intervention group compared with the usual care group (change, -14.6 [95% CI, -13.1 to -16.0] mm Hg vs -11.7 [-10.2 to -13.1] mm Hg; P = .005). There was no difference in the percentage of patients who achieved BP control in the intervention group compared with the control group (50.4% [95% CI, 46.5% to 54.3%] vs 47.1% [95% CI, 43.3% to 51.0%]). More patients received an action aligned with the CDS recommendations in the intervention group than in the usual care group (49.9% [95% CI, 45.1% to 54.8%] vs 34.6% [95% CI, 29.8% to 39.4%]; P < .001).

Conclusions and Relevance

These findings suggest that implementing this computerized CDS system could lead to improved management of uncontrolled hypertension and potentially improved clinical outcomes at the population level for patients with CKD.

Trial Registration

ClinicalTrials.gov Identifier: NCT03679247.

The lowest well tolerated blood pressure: A personalized target for all?

The optimal blood pressure (BP) target for prevention of cardiovascular complications of hypertension remains uncertain. Most Guidelines suggest different targets depending on age, comorbidities and treatment tolerability, but the underlying evidence is not strong. Results of randomized strategy trials comparing lower (i.e., more intensive) versus higher (i.e., less intensive) BP targets should drive the definition. However, these trials tested different BP targets based on systolic BP, diastolic BP or combined systolic and diastolic BP goals. Overall, the more intensive treatment targets reduced the risk of major cardiovascular complications of hypertension when compared with the less intensive targets, despite a higher incidence of unwanted effects including, but not limited to, hypotension, electrolyte abnormalities and renal dysfunction. Consequently, some Guidelines defined low BP thresholds (i.e., 120/70 mmHg) not to exceed downward because of the expectation that unwanted effects may outweigh the outcome benefits. The present review discusses the evidence underlying the choice of BP targets, which remains an important step in the management of hypertensive patients. We conclude that, on the ground of the heterogeneity of available data in support to fixed BP targets, their definition should be personalized in all patients and based on best trade-off between efficacy and safety, i.e., the lowest well tolerated BP.

Representation of Real-World Adults With Chronic Kidney Disease in Clinical Trials Supporting Blood Pressure Treatment Targets

BACKGROUND

Little is known about how well trial participants with chronic kidney disease (CKD) represent real-world adults with CKD. We assessed the population representativeness of clinical trials supporting the 2021 Kidney Disease: Improving Global Outcomes blood pressure (BP) guidelines in real-world adults with CKD.

METHODS AND RESULTS

Using a cross-sectional analysis, we identified patients with CKD who met the guideline definition of hypertension based on use of antihypertensive medications or sustained systolic BP ≥120 mm Hg in 2019 in the Veterans Affairs and Kaiser Permanente of Southern California. We applied the eligibility criteria from 3 BP target trials, SPRINT (Systolic Pressure Intervention Trial), ACCORD (Action to Control Cardiovascular Risk in Diabetes), and AASK (African American Study of Kidney Disease), to estimate the proportion of adults with a systolic BP above the guideline-recommended target and the proportion who met eligibility criteria for ≥1 trial. We identified 503 480 adults in the Veterans Affairs and 73 412 adults in Kaiser Permanente of Southern California with CKD and hypertension in 2019. We estimated 79.7% in the Veterans Affairs and 87.3% in the Kaiser Permanente of Southern California populations had a systolic BP ≥120 mm Hg; only 23.8% [23.7%-24.0%] in the Veterans Affairs and 20.8% [20.5%-21.1%] in Kaiser Permanente of Southern California were trial-eligible. Among trial-ineligible patients, >50% met >1 exclusion criteria.

CONCLUSIONS

Major BP target trials were representative of fewer than 1 in 4 real-world adults with CKD and hypertension. A large proportion of adults who are at risk for cardiovascular morbidity from hypertension and susceptible to adverse treatment effects lack relevant treatment information.

Comorbidity of patients with noncommunicable diseases in general practice. Eurasian guidelines

Создание руководства поддержано Советом по терапевтическим наукам отделения клинической медицины Российской академии наук.