Therapeutic targets for the anemia of predialysis chronic kidney disease: a meta-analysis of randomized, controlled trials

2019 ◽  
Vol 67 (6) ◽  
pp. 1002-1008 ◽  
Author(s):  
Hongyong Liu ◽  
Yuqiu Ye ◽  
Yanbing Chen ◽  
Yunqiang Zhang ◽  
Shaomin Li ◽  
...  

Anemia is one of the major complications in predialysis patients with chronic kidney disease (CKD). A clearer cognition of the prognostic impact of hemoglobin (Hb) or hematocrit (Hct) target on the outcomes of predialysis patients with CKD is significant. This article aims to establish the suitable hemoglobin target to provide clinical guidance. MEDLINE, EmBase, the Cochrane Library and other databases were searched with both MeSH terms and keywords to gather researches that assessed all-cause mortality, stroke, treatment of renal replacement, and transfusion. The meta-analysis was accomplished via Revman 5.3 version. Totally, 13 eligible studies involving 7606 patients were included. There was a significantly lower risk of transfusion (risk ratio (RR) 0.59, 95% CI 0.52 to 0.67; p<0.00001) in the higher hemoglobin group than in the lower one. However, no significant difference was found in all-cause mortality (RR 1.10, 95% CI 0.98 to 1.23; p=0.11), stroke (RR 1.32, 95% CI 0.82 to 2.10; p=0.25) and treatment of renal replacement including hemodialysis, peritoneal dialysis and renal transplant (RR 1.08, 95% CI 0.95 to 1.22; p= 0.23) between the higher hemoglobin group and the lower one. The results favor the higher hemoglobin target. To target the higher hemoglobin when treating predialysis patients with CKD may decrease the risk of transfusion without increasing the risk of death, stoke, and treatment of renal replacement.

2019 ◽  
Vol 77 (1) ◽  
Author(s):  
Ling Liu ◽  
Yanqiu Wang ◽  
Wanjun Zhang ◽  
Weiwei Chang ◽  
Yuelong Jin ◽  
...  

Abstract Background The incidence of chronic kidney disease (CKD) increases each year, and obesity is an important risk factor for CKD. The main anthropometric indicators currently reflecting obesity are body mass index (BMI), waist circumference (WC), waist-to-hip ratio (WHR) and waist-to-height ratio (WHtR), but the rationality and merits of various indicators vary. This article aims to find whether the WHtR is a more suitable physical measurement that can predict CKD. Methods Pubmed, embase, the cochrane library, and web of science were systematically searched for articles published between 1998 and 2019 screening CKD through physical indicators. Two reviewers independently screened the literature according to the inclusion and exclusion criteria, extracted the data, and evaluated the quality of the methodology included in the study. Meta-analysis used the Stata 12.0 software. Results Nine studies were included, with a total of 202,283 subjects. Meta-analysis showed that according to the analysis of different genders in 6 studies, regardless of sex, WHtR was the area with the largest area under the curve (AUC). Except WHtR and visceral fat index (VFI) in women which showed no statistical difference, WHtR and other indicators were statistically different. In three studies without gender-based stratification, the area under the curve AUC for WHtR remained the largest, but only the difference between WHtR and BMI was statistically significant. When the Chinese population was considered as a subgroup, the area under the curve AUC for WHtR was the largest. Except for WHtR and VFI which showed no statistical difference in women, there was a statistically significant difference between WHtR and other indicators in men and women. Conclusion WHtR could be better prediction for CKD relative to other physical measurements. It also requires higher-quality prospective studies to verify the clinical application of WHtR.


Blood ◽  
2007 ◽  
Vol 110 (11) ◽  
pp. 3748-3748
Author(s):  
Anat Gafter-Gvili ◽  
Benaya Rozen-Zvi ◽  
Mical Paul ◽  
Leonard Leibovici ◽  
Gafter Uzi ◽  
...  

Abstract Background: There is confounding data regarding the best method of iron supplementation in chronic kidney disease (CKD), without a consistent approach in clinical practice. Objectives: To evaluate the efficacy and safety of intravenous (IV) iron versus oral iron in patients treated for anemia of CKD. Methods: Systematic review and meta-analysis of randomized controlled trials comparing IV iron preparation with oral iron preparation for the treatment of anemia in patients with CKD (stage III, IV and V). The Cochrane Library, MEDLINE, conference proceedings and references were searched until 2007. Primary outcomes: absolute hemoglobin (Hb) level or change in Hb level from baseline at two months or at end of study; all-cause mortality. Secondary outcomes: need for renal replacement therapy (RRT) in predialysis patient and adverse events. Weighted mean differences (WMD) for outcomes with continuous variables and relative risks (RR) for dichotomous outcomes with 95% confidence intervals (CI) were estimated and pooled. Results: Our search yielded 11 trials which compared IV iron preparations (iron sucrose, iron gluconate or iron dextran) to oral iron. Compared to oral iron, there was a significant rise in Hb level in the IV iron treated hemodialysis patients (WMD 1.17; 95%CI 0.19–2.15, fig). Significant heterogeneity was observed due to different baseline Hb values and baseline iron status, different dosages of oral iron, and different dosages of erythropoiesis stimulating agents (ESA). For predialysis patients, there was a small but significant difference in the Hb level favoring the IV iron group (WMD 0.28; 95% CI 0.15–0.4, fig). For both groups effect estimates were not influenced by ESA administration. In predialysis patients, there was no significant difference in the risk for requiring RRT during the trial between the different groups (RR 0.63; 95%CI 0.25–1.65). Data on all-cause mortality were sparse (RR 0.54; 95%CI 0.09–3.13, 3 trials) and there was no difference in adverse events (RR 0.9; 95%CI 0.65–1.24) between the IV and oral treated patients. However, discontinuations of treatment were more common (RR 3.27; 95%CI 1.15–9.26) for the IV iron treated patients. Conclusions: Our review demonstrates that dialysis patients treated with IV iron have better Hb response than patients treated with oral iron. For predialysis patients, this effect is very small. IV iron should be preferred in the treatment of anemia in dialysis patients. In predialysis patients the slight advantage in Hb response should be weighed against the inconvenience and cost of IV iron treatment.


2021 ◽  
Vol 36 (Supplement_1) ◽  
Author(s):  
Canlin Yang ◽  
Xiaotong Xie ◽  
Jie Xing ◽  
Xin Yang ◽  
Xiao liang Zhang

Abstract Background and Aims Vascular calcification is an independent predict factor of cardiovascular mortality and all-cause mortality in chronic kidney disease (CKD) patients. Animals experiments and clinical studies showed the inhibition effect of diphosphonates in vascular calcification, but the results of the studies remains controversial. This meta-analysis aims to evaluate the effects of diphosphonates on vascular calcification in patients with CKD. Method Randomized controlled trials (RCT) and non-RCTs of diphosphonates for the treatment of vascular calcification in CKD patients until September 2020 were searched in the database of PubMed, Embase, Cochrane library, CNKI and Wanfang. Literatures were screened according to the inclusion and exclusion criteria and quality was evaluated by two investigators independently. The standard deviation from mean (SMD) and 95% confidence interval (CI) were used to representthe counting data. Data extracted from the literatures were analyzed with Stata software (version 15.0). Results A total of 6 RCTs and 1 non-RCT with 272 patients were included, characteristics of the studies included are shown in Table 1. Meta-analysis indicated that diphosphonates inhibit vascular calcification in CKD [SMD =-0.297, 95% CI = (-0.591, -0.002), P = 0.049] (Figure 1). Etidronate is the most effective one in treating with vascular calcification (P = 0.020) (Figure 2). But there isn’t significant difference in aortic artery calcification and coronary artery calcification compared with the control group (P&gt;0.05). There was no statistically significant difference in the change of blood calcium, blood phosphate, and serum parathyroid hormone between two groups (all P&gt;0.05). Conclusion Diphosphonates can inhibit the progression of vascular calcification in CKD patients, and it hasn’t obvious effect on blood calcium, blood phosphate, and serum parathyroid hormone. Etidronate is the most promising therapeutic agent.


2021 ◽  
Vol 36 (Supplement_1) ◽  
Author(s):  
Takeshi Hasegawa ◽  
Hiroki Nihiwaki ◽  
Erika Ota ◽  
William Levack ◽  
Hisashi Noma

Abstract Background and Aims Patients with chronic kidney disease (CKD) undergoing dialysis are at a particularly high risk of cardiovascular mortality and morbidity. This systematic review and meta-analysis aimed to evaluate the benefits and harms of aldosterone antagonists, both non-selective (spironolactone) and selective (eplerenone), in comparison to control (placebo or standard care) in patients with CKD requiring haemodialysis or peritoneal dialysis. Method We searched the Cochrane Kidney and Transplant Register of Studies up to 29 July 2019 using search terms relevant to this review. Studies in the Register are identified through searches of CENTRAL, MEDLINE, and EMBASE, conference proceedings, the International Clinical Trials Register Search Portal and ClinicalTrials.gov. We included individual and cluster randomised controlled trials (RCTs), cross-over trials, and quasi-RCTs that compared aldosterone antagonists with placebo or standard care in patients with CKD requiring dialysis. We used a random-effects model meta-analysis to perform a quantitative synthesis of the data. We used the I2 statistic to measure heterogeneity among the trials in each analysis. We indicated summary estimates as a risk ratio (RR) for dichotomous outcomes with their 95% confidence interval (CI). We assessed the certainty of the evidence for each of the main outcomes using the GRADE (Grades of Recommendation, Assessment, Development, and Evaluation) approach. Results We included 16 trials (14 parallel RCTs and two cross-over trials) involving a total of 1,446 patients. Among included studies, 13 trials compared spironolactone to placebo or standard care and one trial compared eplerenone to a placebo. Most studies had an unclear or high risk of bias. Compared to control, aldosterone antagonists reduced the risk of all-cause death for patients with CKD requiring dialysis (9 trials, 1,119 patients: RR 0.45, 95% CI 0.30 to 0.67; moderate certainty of evidence). Aldosterone antagonist also decreased the risk of death due to cardiovascular disease (6 trials, 908 patients: RR 0.37, 95% CI 0.22 to 0.64; moderate certainty of evidence) and cardiovascular and cerebrovascular morbidity (3 trials, 328 patients: RR 0.38, 95% CI 0.18 to 0.76; moderate certainty of evidence). While aldosterone antagonists had an apparent increased risk of gynaecomastia compared with control (4 trials, 768 patients: RR 5.95, 95% CI 1.93 to 18.3; moderate certainty of evidence), the elevated risk of hyperkalaemia due to aldosterone antagonists was uncertain (9 trials, 981 patients: RR 1.41, 95% CI 0.72 to 2.78; low certainty of evidence). Conclusion Based on moderate certainty of the evidence, aldosterone antagonists could reduce the risk of all-cause and cardiovascular death and morbidity due to cardiovascular and cerebrovascular disease but increase the risk of gynaecomastia in patients with CKD requiring dialysis.


2021 ◽  
Author(s):  
Kevin C. Maki ◽  
Meredith L. Wilcox ◽  
Mary R. Dicklin ◽  
Rahul Kakkar ◽  
Michael H. Davidson

Abstract Background Cardiovascular disease is an important driver of the increased mortality associated with chronic kidney disease (CKD). Higher left ventricular mass (LVM) predicts increased risk of adverse cardiovascular outcomes and total mortality, but previous reviews have shown no clear association between intervention-induced LVM change and all-cause or cardiovascular mortality in CKD. Methods The primary objective of this meta-analysis was to investigate whether treatment-induced reductions in LVM over periods ≥ 12 months were associated with all-cause mortality in patients with CKD. Cardiovascular mortality was investigated as a secondary outcome. Measures of association in the form of relative risks (RRs) with associated variability and precision (95% confidence intervals [CIs]) were extracted directly from each study, when reported, or were calculated based on the published data, if possible, and pooled RR estimates were determined. Results The meta-analysis included 38 trials with duration ≥ 12 months: 6 of erythropoietin stimulating agents treating to higher vs. lower hemoglobin targets, 10 of renin-angiotensin-aldosterone system inhibitors vs. placebo or another blood pressure lowering agent, 14 of modified hemodialysis regimens, and 8 of other types of interventions. All-cause mortality was reported in 116/2385 (4.86%) subjects in intervention groups and 161/2404 (6.70%) subjects in control groups. The pooled RR estimate of the 24 trials ≥ 12 months with ≥ 1 event in ≥ 1 group was 0.72 (95% CI 0.57 to 0.91, p = 0.005), with little heterogeneity across studies. Directionalities of the associations in intervention subgroups were the same. Sensitivity analyses of ≥ 6 months (31 trials), ≥ 9 months (26 trials), and > 12 months (9 trials), and including studies with no events in either group, demonstrated similar risk reductions to the primary analysis. The point estimate for cardiovascular mortality was similar to all-cause mortality, but not statistically significant: RR 0.66, 95% CI 0.38 to 1.15. Conclusions These results suggest that LVM regression may be a useful surrogate marker for benefits of interventions intended to reduce mortality risk in patients with CKD.


Author(s):  
TAOPHEEQ MUSTAPHA ◽  
VARIJA BHOGIREDDY ◽  
HARTMAN MADU ◽  
ADU BOACHIE ◽  
ABDUL OSENI ◽  
...  

BACKGROUND: Heart failure (HF) and Chronic kidney disease (CKD) are major public health problems that often co-exist with a resultant high mortality and morbidity. Most of the studies evaluating their reciprocal prognostic impact have focused on mortality in majority populations. There is limited literature on the impact of CKD on HF morbidities in ethnic minorities. AIMS: Our study seeks to compare HF outcomes in patients with or without CKD in an African-American predominant cohort. METHODS: We obtained data from the NGH at Meharry Heart Failure Cohort; a comprehensive retrospective HF database comprised of patient care data (HF admissions, non-HF admissions, and emergency room visits) were assessed from January 2006 to December 2008. The study group consist of 306 subjects with a mean age of 65±15 years. 81% were African-American (AA), 19% Caucasian and 48.5% are females. Following the NKF KDOQI guidelines, 5 stages of CKD were outlined based on GFR. RESULTS: The overall prevalence of CKD in this population is 54.2%. CKD stage 1 was most prevalent with 45.8%, prevalence for stages 2-5 are 21.6%, 18.3%, 9.5% and 4.9% respectively. The comparison of the mean of ER visits, non HF hospitalizations and HF hospitalizations between normal and CKD patients was done using independent t-test and showed no significant difference in the mean number of ER visits (p=0.564), or HF hospitalizations(p=0.235). However, there is a statistically significant difference in the mean number of non -HF hospitalizations between normal and CKD patients (p=0.031). CONCLUSION: This study shows that the prevalence of CKD in this minority -predominant HF cohort is similar to prior studies in majority populations. However, only the non-HF hospitalizations were significantly increased in the CKD group. Future prospective studies will be needed to define the implications of this in the management of HF patients with CKD.


2020 ◽  
Vol 2020 ◽  
pp. 1-13
Author(s):  
Yao Zhou ◽  
Shi-min Jiang ◽  
Li Li ◽  
Ying Wang ◽  
Lei Ding ◽  
...  

Objective. To systematically evaluate the efficacy and safety of tanshinone for chronic kidney disease (CKD). Methods. Randomized controlled trials (RCTs) on the treatment of CKD using tanshinone were searched using 4 Chinese databases (China National Knowledge Infrastructure (CNKI), Value In Paper (VIP), Wanfang, and Chinese Biology Medicine (CBM)) and 3 English databases (PubMed, Cochrane Library, and Excerpta Medica Database (Embase)). The results included data on blood urine nitrogen (BUN), serum creatinine (Scr), glomerular filtration rate (GFR), 24 h urine protein, microalbuminuria (mALB), β2-macroglobulin (β2-MG), cystatin C (CysC), and safety events. The data were analyzed using Revman 5.3 and Stata 12.0 software. Results. Twenty-one studies were entered into this meta-analysis, which involved 1857 patients including 954 cases from the tanshinone treatment group and 903 cases from the control group. BUN levels in the tanshinone treatment group were significantly reduced compared with the control (standardized mean difference (SMD) = −0.65, 95% confidence interval (CI): −0.81 to −0.49, p<0.01). In addition, subgroup analysis indicated that tanshinone had a significant effect in reducing Scr levels at 14, 21, and 28 days. Scr levels in the tanshinone treatment group were significantly reduced compared with the control group (SMD = −1.40, 95% CI: −2.09 to −0.71, p<0.01); subgroup analysis based on treatment time also yielded the same results. GFR in the tanshinone treatment group was better than that in the control group (SMD = 0.83, 95% CI: 0.59 to 1.07, p<0.01). In terms of urine protein levels, 24 h urine protein level, mALB, and β2-MG of CKD patients were reduced to some degree compared with controls, and CysC levels in the tanshinone treatment group were also significantly reduced compared with the control group (SMD = −0.24, 95% CI: −0.44 to −0.03, p<0.05). Safety in the tanshinone treatment group did not differ significantly from that of the control group (risk ratio (RR) = 7.78, 95% CI: 0.99 to 61.05, p>0.05). Conclusion. This meta-analysis showed that tanshinone could control urine protein level in CKD patients, improve kidney function, and delay the evolution of CKD without significant side effects. However, the results were limited and should be interpreted with caution because of the low quality of the included studies. In the future, more rigorous clinical trials need to be conducted to provide sufficient and accurate evidence.


2020 ◽  
pp. 089686082091871
Author(s):  
Guo Xieyi ◽  
Tang Xiaohong ◽  
Wu Xiaofang ◽  
Li Zi

An increasing number of studies have focused on whether peritoneal dialysis (PD) can be used for the urgent initiation of dialysis in patients with chronic kidney disease (CKD). We performed this systematic review and meta-analysis to evaluate the feasibility and safety of urgent-start PD compared with those of planned PD and urgent-start hemodialysis (HD) in this population. PubMed, EMBASE, the Cochrane Central Register of Controlled Trials (CENTRAL), clinicaltrials.gov , and China National Knowledge Infrastructure (CNKI) were searched for relevant studies. Conference abstracts were also searched in relevant websites. The meta-analysis was performed using RevMan 5.3 software. A total of 15 trials involving 2426 participants were identified. The quality of the included studies was fair, but the quality of evidence was very low. Unadjusted meta-analysis showed that urgent-start PD had significantly higher mortality than planned PD, while adjusted meta-analysis did not show a significant difference. Higher incident of leakage and catheter mechanical dysfunction were observed in urgent-start PD. However, peritonitis, exit-site infection, or PD technique survival were comparable between urgent-start and planned PD. The all-cause mortality was comparable in urgent-start PD and urgent-start HD. Bacteremia was significantly lower in the urgent-start PD group than with urgent-start HD. Based on limited evidences, PD may be a viable alternative to HD for CKD patients requiring urgent-start dialysis. Because of the inconsistent results and the low quality of evidence, a definitive conclusion could not be drawn for whether urgent-start PD was comparable with planned PD. Therefore, high-quality and large-scale studies are needed in the future.


Sign in / Sign up

Export Citation Format

Share Document