scholarly journals Proteinuria and cholesterol reduction are independently associated with less renal function decline in statin-treated patients; a post hoc analysis of the PLANET trials

2018 ◽  
Vol 34 (10) ◽  
pp. 1699-1706 ◽  
Author(s):  
Nienke M A Idzerda ◽  
Michelle J Pena ◽  
Hans-Henrik Parving ◽  
Dick de Zeeuw ◽  
Hiddo J L Heerspink

Abstract Background Statins have shown multiple effects on different renal risk factors such as lowering of total cholesterol (TC) and lowering of urine protein:creatinine ratio (UPCR). We assessed whether these effects of statins vary between individuals, the extent of discordance of treatment effects on both TC and UPCR within an individual, and the association of responses in TC and UPCR with estimated glomerular filtration rate (eGFR) decline. Methods The PLANET I and II (Renal effects of Rosuvastatin and Atorvastatin in Patients Who Have Progressive Renal Disease) trials examined effects of atorvastatin and rosuvastatin on proteinuria and renal function in patients with proteinuria. We post hoc analysed 471 therapy-adherent proteinuric patients from the two trials and assessed the individual variability in UPCR and TC response from 0 to 14 weeks and whether these responses were predictive of eGFR decline during the subsequent 9 months of follow-up. Results UPCR and TC response varied between individuals: mean UPCR response was −1.3% (5th–95th percentile −59.9 to 141.8) and mean TC response was −93.9 mg/dL (−169.1 to −26.9). Out of 471 patients, 123 (26.1%) showed a response in UPCR but not in TC, and 96 (20.4%) showed a response in TC but not in UPCR. eGFR (mL/min/1.73 m2) did not decrease significantly from baseline in both UPCR responders [0.4; 95% confidence interval (CI) −1.6 to 0.9; P = 0.54] and TC responders (0.3; 95% CI −1.8 to 1.1; P = 0.64), whereas UPCR and TC non-responders showed a significant decline in eGFR from baseline (1.8; 95% CI 0.6–3.0; P = 0.004 and 1.7; 95% CI 0.5–2.9; P = 0.007, respectively). A lack of response in both parameters resulted in the fastest rate of eGFR decline (2.1; 95% CI 0.5–3.7; P = 0.01). These findings were not different for rosuvastatin or atorvastatin. Conclusions Statin-induced changes in cholesterol and proteinuria vary between individuals and do not run in parallel within an individual. The initial fall in cholesterol and proteinuria is independently associated with a reduction in eGFR decline. This highlights the importance of monitoring both cholesterol and proteinuria after initiating statin therapy.

2019 ◽  
Vol 35 (12) ◽  
pp. 2103-2111 ◽  
Author(s):  
Vlado Perkovic ◽  
Audrey Koitka-Weber ◽  
Mark E Cooper ◽  
Guntram Schernthaner ◽  
Egon Pfarr ◽  
...  

Abstract Background Doubling of serum creatinine [equivalent to 57% reduction in estimated glomerular filtration rate (eGFR)] is an established surrogate for end-stage kidney disease (ESKD); however, this endpoint necessitates lengthy follow-up and large sample sizes in clinical trials. We explored whether alternative eGFR decline thresholds provide more feasible surrogate kidney endpoints. Methods The study involved post hoc analysis of the EMPA-REG OUTCOME® trial. Adults with type 2 diabetes, high cardiovascular risk and eGFR ≥30 mL/min/1.73 m2 were assigned empagliflozin 10 mg or 25 mg (n = 4687) or placebo (n = 2333), on top of standard of care. We assessed composite endpoints incorporating different eGFR decline thresholds (≥30, ≥40, ≥50 or ≥57%) combined with initiation of renal replacement therapy (RRT) or renal death. This trial is registered with ClinicalTrials.gov (NCT01131676). Results Empagliflozin versus placebo significantly lowered the risk of decline in eGFR for each threshold listed above, combined with initiation of RRT or renal death, ranging from a hazard ratio (HR) of 0.81 [95% confidence interval (CI) 0.72–0.91] for endpoints based on 30% eGFR decline to an HR of 0.37 (0.23–0.61) for endpoints based on 57% eGFR decline. Lower thresholds (e.g. 30%) were associated with higher event rates but weaker treatment effects. The time to the 95% CI of the HR falling to <1.0 decreased with increasing eGFR threshold. Conclusions The composite of 40% decline in eGFR, ESKD or renal death appears to provide reliable results similar to the traditional 57% decline in eGFR.


2021 ◽  
Vol 42 (1) ◽  
pp. 34-39
Author(s):  
Sittichon Suriyawongkul ◽  
◽  
Chawawat Gosrisirikul ◽  
Vorapot Choonhaklai ◽  
Tanet Thaidumrong ◽  
...  

Objectives: Our objectives were to evaluate the long-term renal function after radical cystectomy (RC) and ileal conduit diversion (ICD) and to analyze year-by-year the estimated glomerular filtration rate (eGFR) and morphologic upper urinary tract changes. Materials and Methods: We retrospectively identified 214 patients who had undergone RC and ICD from 2012 to 2018, with regular postoperative follow-up visits. The eGFR was calculated using the Modification of Diet in Renal Disease equation at baseline and during follow-up. A renal function decrease was defined as a greater than 10 mL/min/1.73 m2 reduction in the estimated glomerular filtration rate. Results: The median follow-up period after RC was 24 months (range, 6-60 months). The median eGFR decreased from 64 mL/min/1.73 m2 (range, 9-125 mL/min/1.73 m2) to 61.5 mL/min/1.73 m2 (range, 8-125 mL/min/1.73 m2). A decline in renal function occurred during the first postoperative years (2.74 mL/ min/1.73 m2 and 3.95 mL/min/1.73 m2 in the first and second year, respectively), with a slight decrease in the subsequent years. The strongest predictor of an eGFR decline was CKD stage 1 or 2 (> 60 mL/min/1.73 m2). Urinary obstruction was diagnosed in 6 patients (2.8%). Among the patients who underwent prompt interventional treatment, we did not find any association with the eGFR decline. Conclusion: Patients with urinary ICD have a lifelong risk of chronic kidney disease. Regular monitoring of renal function and the morphologic upper urinary tract will permit early diagnosis and treatment of modifiable factors, avoiding irreversible kidney damage.


2019 ◽  
Vol 130 (2) ◽  
pp. 227-236 ◽  
Author(s):  
Alexandre Joosten ◽  
Amélie Delaporte ◽  
Julien Mortier ◽  
Brigitte Ickx ◽  
Luc Van Obbergh ◽  
...  

Abstract Editor’s Perspective What We Already Know about This Topic What This Article Tells Us That Is New Background The authors recently demonstrated that administration of balanced hydroxyethyl starch solution as part of intraoperative goal-directed fluid therapy was associated with better short-term outcomes than administration of a balanced crystalloid solution in patients having major open abdominal surgery. In the present study, a 1-yr follow-up of renal and disability outcomes in these patients was performed. Methods All patients enrolled in the earlier study were followed up 1 yr after surgery for renal function and disability using the World Health Organization Disability Assessment Schedule 2.0 (WHODAS). The main outcome measure was the estimated glomerular filtration rate. Other outcomes were serum creatinine, urea, pruritus, and WHODAS score. Groups were compared on a complete-case analysis basis, and modern imputation methods were then used in mixed-model regressions to assess the stability of the findings taking into account the missing data. Results Of the 160 patients enrolled in the original study, follow-up data were obtained for renal function in 129 and for WHODAS score in 114. There were no statistically significant differences in estimated glomerular filtration rate at 1 yr (ml min−1 1.73 m−2): 80 [65 to 92] for crystalloids versus 74 [64 to 94] for colloids; 95% CI [−10 to 7], P = 0.624. However, the WHODAS score (%) was statistically significantly lower in the colloid than in the crystalloid group (2.7 [0 to 12] vs. 7.6 [1.3 to 18]; P = 0.015), and disability-free survival was higher (79% vs. 60%; 95% CI [2 to 39]; P = 0.024). Conclusions In patients undergoing major open abdominal surgery, there was no evidence of a statistically significant difference in long-term renal function between a balanced hydroxyethyl starch and a balanced crystalloid solution used as part of intraoperative goal-directed fluid therapy, although there was only limited power to rule out a clinically significant difference. However, disability-free survival was significantly higher in the colloid than in the crystalloid group.


2019 ◽  
Vol 20 (1) ◽  
Author(s):  
Delia Colombo ◽  
◽  
Alessandro Zullo ◽  
Lucia Simoni ◽  
Emanuela Zagni

Abstract Background Female sex has been reported as an independent predictor of severe post-liver transplantation (LT) chronic kidney disease. We performed a by sex post-hoc analysis of the SURF study, that investigated the prevalence of renal impairment following LT, aimed at exploring possible differences between sexes in the prevalence and course of post-LT renal damage. Methods All patients enrolled in the SURF study were considered evaluable for this sex-based analysis, whose primary objective was to evaluate by sex the proportion of patients with estimated Glomerular Filtration Rate (eGFR) < 60 ml/min/1.73m2 at inclusion and follow-up visit. Results Seven hundred thirty-eight patients were included in our analysis, 76% males. The proportion of patients with eGFR < 60 mL/min/1.73 m2 was significantly higher in females at initial study visit (33.3 vs 22.8%; p = 0.005), but also before, at time of transplantation (22.9 vs 14.7%; p = 0.0159), as analyzed retrospectively. At follow-up, such proportion increased more in males than in females (33.9 vs 26.0%, p = 0.04). Mean eGFR values decreased over the study in both sexes, with no significant differences. Statistically significant M/F differences in patient distribution by O’Riordan eGFR levels were observed at time of transplant and study initial visit (p = 0.0005 and 0.0299 respectively), but not at follow-up. Conclusions Though the limitation of being performed post-hoc, this analysis suggests potential sex differences in the prevalence of renal impairment before and after LT, encouraging further clinical research to explore such differences more in depth.


2017 ◽  
Vol 118 (5) ◽  
pp. 375-382 ◽  
Author(s):  
Gerrie-Cor M. Herber-Gast ◽  
Marijke Boersma ◽  
W. M. Monique Verschuren ◽  
Coen D. A. Stehouwer ◽  
Ron T. Gansevoort ◽  
...  

AbstractEmerging evidence suggests that diet and renal function are related. Little is known, however, about the association of consumption of whole grains, fruit and vegetables with urinary albumin:creatinine ratio (ACR) and changes in estimated glomerular filtration rate (eGFR). We investigated this in a population-based cohort aged 26–65 years. Data were from 3787 participants from the Doetinchem cohort study, who were examined ≥3 times, 5 years apart. Consumption of food groups was assessed at each round with a validated FFQ. GFR was estimated at each round from routinely measured cystatin C and creatinine using the Chronic Kidney Disease-Epidemiology (CKD-EPI) equation. ACR was measured at the last round. Generalised estimated equation models were performed to examine associations with changes in eGFR. Linear regression was used to examine associations with ACR. Adjustments were made for covariates related to lifestyle, biological factors and diet. Mean baseline eGFR was 104·5 (sd 13·7) and mean annual decline was −0·95 (sd 0·67) ml/min per 1·73 m2 over a 15-year follow-up. A trend was observed towards slightly less annual decline in eGFR among those with higher consumption of whole grains (P=0·06). This association, however, was attenuated and no longer significant in multivariate models (P=0·29). Consumption of fruit and vegetables was not associated with changes in eGFR and urinary ACR. In conclusion, consumption of whole grains, fruit and vegetables is not associated with changes in eGFR and mean ACR. As this was the first longitudinal study into this association in the general population, and as results are only partially in line with related studies, further research is recommended.


2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Yi-Chi Chen ◽  
Shuo-Chun Weng ◽  
Jia-Sin Liu ◽  
Han-Lin Chuang ◽  
Chih-Cheng Hsu ◽  
...  

Abstract Cognitive dysfunction is closely related to aging and chronic kidney disease (CKD). However, the association between renal function changes and the risk of developing cognitive impairment has not been elucidated. This longitudinal cohort study was to determine the influence of annual percentage change in estimated glomerular filtration rate (eGFR) on subsequent cognitive deterioration or death of the elderly within the community. A total of 33,654 elders with eGFR measurements were extracted from the Taipei City Elderly Health Examination Database. The Short Portable Mental Status Questionnaire was used to assess their cognitive progression at least twice during follow-up visits. Multivariable Cox regression models were used to estimate the hazard ratio (HR) for cognitive deterioration or all-cause mortality with the percentage change in eGFR. During a median follow-up of 5.4 years, the participants with severe decline in eGFR (>20% per year) had an increased risk of cognitive deterioration (HR, 1.33; 95% confidence interval [CI], 1.08–1.72) and the composite outcome (HR, 1.17; 95% CI, 1.03–1.35) when compared with those who had stable eGFR. Severe eGFR decline could be a possible predictor for cognitive deterioration or death among the elderly. Early detection of severe eGFR decline is a critical issue and needs clinical attentions.


2020 ◽  
Vol 35 (Supplement_3) ◽  
Author(s):  
SAUL PAMPA-SAICO ◽  
M Soledad Pizarro-Sánchez ◽  
Simona Alexandru ◽  
Laura García Puente-Suárez ◽  
María López-Picasso ◽  
...  

Abstract Background and Aims Renal cell carcinoma is the most common form of kidney cancer. Reduction of renal mass after radical nephrectomy (RN) in these patients, results in compensatory hypertrophy of the contralateral kidney. The capacity of compensation will determine the renal function (RF) evolution. Measuring of total renal volume (TRV) of the remaining kidney pre and post RN can help assess the RF evolution. Aims To determine the correlation between TRV pre and post nephrectomy (a year of follow-up) with RF and the factors that modify. Method A retrospective cohort study was carried out in our institution, in 62 patients who had underwent RN from 2014 to 2018, due to renal cell carcinoma (confirmed by histopathology). The demographic data included age, gender, body mass index (BMI), associated comorbidities, smoking habits were collected. Serum creatinine, estimated glomerular filtration rate (eGFR) and proteinuria were collected in the preoperative period and in the follow-up. The TRV was calculated pre and post (a year of follow-up) RN, using ellipsoid formula equation (computed tomography scan or magnetic resonance imaging). Renal function evolution was assessed by eGFR using the modification of diet in Renal Disease formula. Multivariate linear regression analysis was used to determine the predictor of TRV at 1 year of follow-up. Results The median age at the time of RN was 71 years old (range, 43-86 years). Most of them were men, 69% (43/19). The estimated glomerular filtration rate (FGe) pre and post nephrectomy was 74 (41-102) and 52.1 ml/min/ m2 (22-89) respectively (P=0.013). The TRV pre and post-nephrectomy was 165.3 (102.3-259.7) and 188.3 ml (115.3-271.2) respectively (P=0.001). On multivariate linear regression analysis, controlling for age and sex; the pre-nephrectomy FGe (β = 0.42; P = 0.023) and the pre TRV (β = 1.23; P &lt;0.0001) were positively correlated with the post-nephrectomy TRV, while the FGe at year of follow-up was correlated negatively (β = -1.11; P = 0.024) Conclusion The post nephrectomy TRV was positively correlated with TRV and FGe pre nephrectomy. While with the FGe at one year post nephrectomy was negatively correlated. The increasing TRV pre and post nephrectomy can help to predict renal function at a year of follow-up in this group of patients.


2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
G Boriani ◽  
M Proietti ◽  
C Laroche ◽  
I Diemberger ◽  
Z Kalarus ◽  
...  

Abstract Background Renal function is an important predictor of major adverse outcomes in the general population. In the setting of atrial fibrillation (AF), renal dysfunction may act both as a risk factor and a proxy of vascular risk factors and comorbidities. Methods We analyzed the association of renal function, as estimated glomerular filtration rate (eGFR) using the CKD-EPI formula, with 1-year outcomes in a “real-world” cohort of European AF patients from the EORP-AF Long-Term General Registry. Results 7725 were available for this analysis. Of these, 1294 (16.7%) had normal renal function (≥90 mL/min/1.73 m2), 3848 (49.8%) mildly reduced renal function (60–89 mL/min/1.73 m2), 2311 (29.9%) moderately reduced renal function (30–59 mL/min/1.73 m2) and 272 (3.5%) severely reduced renal function (<30 mL/min/1.73 m2). CHA2DS2-VASc and HAS-BLED scores values increased across eGFR strata (p<0.0001). Among patients qualifying for oral anticoagulant (OAC) therapy, those with severely impaired renal function were less often prescribed with any OAC (79.8%, p<0.0001), more likely with vitamin K antagonist (62.9%) than non-vitamin K antagonist oral anticoagulants (16.9%) (p<0.0001). At 1-year follow-up the rates of any thromboembolic event (TE)/acute coronary syndrome (ACS)/cardiovascular (CV) death progressively increased with worsening renal function, up to 20.7% in patients with severe dysfunction (p<0.0001). Rates of CV death and all-cause death were higher in severe renal dysfunction (16.9% and 21.3%; p<0.0001). Cox regression analysis (adjusted for known predictors) showed that eGFR <30 mL/min/1.73 m2, compared to normal renal function was associated with an increased risk of all the adverse outcomes (Table). eGFR decrease by 10 mL/min/1.73 m2 was associated with increased risks (Table). Any TE/ACS/CV Death CV Death All-Cause Death mL/min/1.73 m2 HR (95% CI) HR (95% CI) HR (95% CI) eGFR ≥90 (ref.) – – – eGFR 60–89 0.99 (0.67–1.46) 0.81 (0.44–1.51) 0.74 (0.47–1.19) eGFR 30–50 1.12 (0.74–1.69) 1.00 (0.53–1.89) 0.95 (0.59–1.54) eGFR <30 2.47 (1.52–3.99) 2.73 (1.36–5.49) 2.16 (1.25–3.72) eGFR (by 10 mL/min/1.73 m2 decrease) 1.11 (1.05–1.17) 1.18 (1.10–1.27) 1.11 (1.03–1.18) ACS = Acute coronary syndrome; CI = Confidence interval; CV = Cardiovascular; eGFR = estimated Glomerular Filtration Rate; HR = Hazard ratio; TE = Thromboembolic event. Conclusions In AF patients, impaired renal function at baseline is associated with a progressive increase in the risk of major adverse outcomes during follow up. Severe renal dysfunction is an independent predictor of all the adverse outcomes.


Author(s):  
Shane A Bobart ◽  
Mariam P Alexander ◽  
Khaled Shawwa ◽  
Lisa E Vaughan ◽  
Ranine Ghamrawi ◽  
...  

Abstract Background Microhematuria is common in immunoglobulin A nephropathy (IgAN). However, current prognostication is based on proteinuria and mesangial hypercellularity, endocapillary hypercellularity, segmental sclerosis, tubulointerstitial fibrosis and crescent (MEST-C) scores. Methods In this retrospective study, we evaluated whether MEST-C score components are associated with the presence of microhematuria at biopsy and whether the degree of microhematuria during follow-up is associated with change in estimated glomerular filtration rate (eGFR), after adjusting for clinical and histological parameters. We identified 125 patients with biopsy-proven IgAN and MEST-C scoring who were not on immunosuppressive therapy at biopsy. Microhematuria was defined as ≥3 red blood cells (RBCs)/high-power field (hpf). Results Of the 125 patients, 97 had microhematuria at baseline and were more likely to have M1, E1 and C ≥ 1 lesions (P &lt; 0.05 for all) compared with patients without microhematuria. Of the 125 patients, 72 had follow-up data available. An increase in the degree of microhematuria was significantly associated with an eGFR decline of −0.81 mL/min/1.73 m2 [95% confidence interval (CI) −1.44 to −0.19, P = 0.01], after adjusting for follow-up time, proteinuria and T score. Severe microhematuria (≥21 RBCs/hpf) was associated with an even larger decline in eGFR (−3.99 mL/min/1.73 m2; 95% CI −6.9411 to −1.0552, P = 0.008), after similar adjustments. Conclusion Degree of microhematuria during follow-up is an independent predictor of eGFR decline after adjusting for clinical and histological parameters. Therefore, monitoring the degree of microhematuria as well as proteinuria is important when evaluating patients with IgAN. Additional studies using improvement in microhematuria as a primary surrogate outcome are needed.


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