An observational claims data analysis on the risk of maternal chronic kidney disease after preterm delivery and preeclampsia

AbstractWomen with complications of pregnancy such as preeclampsia and preterm birth are at risk for adverse long-term outcomes, including an increased future risk of chronic kidney disease (CKD) and end-stage kidney disease (ESKD). This observational cohort study aimed to examine the risk of CKD after preterm delivery and preeclampsia in a large obstetric cohort in Germany, taking into account preexisting comorbidities, potential confounders, and the severity of CKD. Statutory claims data of the AOK Baden-Wuerttemberg were used to identify women with singleton live births between 2010 and 2017. Women with preexisting conditions including CKD, ESKD, and kidney replacement therapy (KRT) were excluded. Preterm delivery (< 37 gestational weeks) was the main exposure of interest; preeclampsia was investigated as secondary exposure. The main outcome was a newly recorded diagnosis of CKD in the claims database. Data were analyzed using Cox proportional hazard regression models. The time-dependent occurrence of CKD was analyzed for four strata, i.e., births with (i) neither an exposure of preterm delivery nor an exposure of preeclampsia, (ii) no exposure of preterm delivery but exposure of at least one preeclampsia, (iii) an exposure of at least one preterm delivery but no exposure of preeclampsia, or (iv) joint exposure of preterm delivery and preeclampsia. Risk stratification also included different CKD stages. Adjustments were made for confounding factors, such as maternal age, diabetes, obesity, and dyslipidemia. The cohort consisted of 193,152 women with 257,481 singleton live births. Mean observation time was 5.44 years. In total, there were 16,948 preterm deliveries (6.58%) and 14,448 births with at least one prior diagnosis of preeclampsia (5.61%). With a mean age of 30.51 years, 1,821 women developed any form of CKD. Compared to women with no risk exposure, women with a history of at least one preterm delivery (HR = 1.789) and women with a history of at least one preeclampsia (HR = 1.784) had an increased risk for any subsequent CKD. The highest risk for CKD was found for women with a joint exposure of preterm delivery and preeclampsia (HR = 5.227). These effects were the same in magnitude only for the outcome of mild to moderate CKD, but strongly increased for the outcome of severe CKD (HR = 11.90). Preterm delivery and preeclampsia were identified as independent risk factors for all CKD stages. A joint exposure or preterm birth and preeclampsia was associated with an excessive maternal risk burden for CKD in the first decade after pregnancy. Since consequent follow-up policies have not been defined yet, these results will help guide long-term surveillance for early detection and prevention of kidney disease, especially for women affected by both conditions.

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Preeclampsia and the risk of chronic kidney disease: a national registry-based cohort study

European Journal of Public Health ◽

10.1093/eurpub/ckaa165.1174 ◽

2020 ◽

Vol 30 (Supplement_5) ◽

Author(s):

P M Barrett ◽

F P McCarthy ◽

M Evans ◽

M Kublickas ◽

I J Perry ◽

...

Keyword(s):

Chronic Kidney Disease ◽

Kidney Disease ◽

Absolute Risk ◽

Population Based ◽

National Registry ◽

Medical Birth Register ◽

Increased Risk ◽

History Of

Abstract Background Preeclampsia is associated with increased risk of future cardiovascular disease, but evidence for associations with chronic kidney disease (CKD) has been inconsistent to date. We aimed to measure associations between preeclampsia and long-term CKD in a population-based sample of parous women, and to identify whether the risk differs by CKD subtype. Methods Using data from the Swedish Medical Birth Register, singleton live births from 1973-2012 were identified and linked to data from the Swedish Renal Register and National Patient Register (up to 2013). Preeclampsia was the main exposure of interest and was treated as a time-dependent variable. The primary outcome was maternal CKD, and this was classified into 5 subtypes: hypertensive, diabetic, glomerular/proteinuric, tubulo-interstitial, other/non-specific CKD. Cox proportional hazard regression models were used for analysis. Women with pre-pregnancy comorbidities were excluded. Results The dataset included 1,924,591 unique women who had 3,726,819 singleton pregnancies. The median follow-up was 20.7 (interquartile range 9.9-30.0) years. Overall, 90,964 women (4.7%) experienced preeclampsia and 18,146 (0.9%) developed CKD. Women who had preeclampsia had higher risk of developing any CKD during follow-up (aHR 1.88, 95% CI 1.79-1.98). The risk differed by CKD subtype, and was higher for hypertensive CKD (aHR 3.76, aHR 3.09-4.57), diabetic CKD (aHR 3.45, 95% CI 2.83-4.21) and glomerular/proteinuric CKD (aHR 2.08, 95% CI 1.90-2.29). Women who had preterm preeclampsia, recurrent preeclampsia, or preeclampsia complicated by pre-pregnancy obesity were also at greater risk of any CKD. Conclusions Women with a history of preeclampsia are at increased risk of long-term CKD. The risk is most marked for hypertensive CKD, diabetic CKD, and glomerular/proteinuric CKD. The absolute risk of CKD related to preeclampsia is substantial, and these women may warrant systematic renal monitoring in the years following delivery. Key messages Preeclampsia is an independent predictor of long-term risk of chronic kidney disease in otherwise healthy parous women. Women with a history of preeclampsia may warrant systematic renal monitoring through additional blood pressure, blood glucose, and proteinuria checks.

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Postoperative acute kidney injury in adult non-cardiac surgery: joint consensus report of the Acute Disease Quality Initiative and PeriOperative Quality Initiative

Nature Reviews Nephrology ◽

10.1038/s41581-021-00418-2 ◽

2021 ◽

Author(s):

John R. Prowle ◽

Lui G. Forni ◽

Max Bell ◽

Michelle S. Chew ◽

Mark Edwards ◽

...

Keyword(s):

Chronic Kidney Disease ◽

Acute Kidney Injury ◽

Cardiac Surgery ◽

Kidney Disease ◽

Kidney Injury ◽

Adverse Outcomes ◽

Baseline Risk ◽

Major Surgery ◽

Increased Risk

AbstractPostoperative acute kidney injury (PO-AKI) is a common complication of major surgery that is strongly associated with short-term surgical complications and long-term adverse outcomes, including increased risk of chronic kidney disease, cardiovascular events and death. Risk factors for PO-AKI include older age and comorbid diseases such as chronic kidney disease and diabetes mellitus. PO-AKI is best defined as AKI occurring within 7 days of an operative intervention using the Kidney Disease Improving Global Outcomes (KDIGO) definition of AKI; however, additional prognostic information may be gained from detailed clinical assessment and other diagnostic investigations in the form of a focused kidney health assessment (KHA). Prevention of PO-AKI is largely based on identification of high baseline risk, monitoring and reduction of nephrotoxic insults, whereas treatment involves the application of a bundle of interventions to avoid secondary kidney injury and mitigate the severity of AKI. As PO-AKI is strongly associated with long-term adverse outcomes, some form of follow-up KHA is essential; however, the form and location of this will be dictated by the nature and severity of the AKI. In this Consensus Statement, we provide graded recommendations for AKI after non-cardiac surgery and highlight priorities for future research.

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History of kidney stones and risk of chronic kidney disease: a meta-analysis

PeerJ ◽

10.7717/peerj.2907 ◽

2017 ◽

Vol 5 ◽

pp. e2907 ◽

Cited By ~ 9

Author(s):

Weifeng Shang ◽

Lixi Li ◽

Yali Ren ◽

Qiangqiang Ge ◽

Ming Ku ◽

...

Keyword(s):

Chronic Kidney Disease ◽

Kidney Disease ◽

Kidney Stones ◽

Meta Analysis ◽

Positive Association ◽

Significant Heterogeneity ◽

Adjusted Risk ◽

Increased Risk ◽

Subgroup Analyses ◽

History Of

Background Although the relationship between a history of kidney stones and chronic kidney disease (CKD) has been explored in many studies, it is still far from being well understood. Thus, we conducted a meta-analysis of studies comparing rates of CKD in patients with a history of kidney stones. Methods PubMed, EMBASE, and the reference lists of relevant articles were searched to identify observational studies related to the topic. A random-effects model was used to combine the study-specific risk estimates. We explored the potential heterogeneity by subgroup analyses and meta-regression analyses. Results Seven studies were included in this meta-analysis. Pooled results suggested that a history of kidney stones was associated with an increased adjusted risk estimate for CKD [risk ratio (RR), 1.47 95% confidence interval (CI) [1.23–1.76])], with significant heterogeneity among these studies (I2 = 93.6%, P < 0.001). The observed positive association was observed in most of the subgroup analyses, whereas the association was not significant among studies from Asian countries, the mean age ≥50 years and male patients. Conclusion A history of kidney stones is associated with increased risk of CKD. Future investigations are encouraged to reveal the underlying mechanisms in the connection between kidney stones and CKD, which may point the way to more effective preventive and therapeutic measures.

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Cross-Generational Contributors to Preterm Birth in California: Singletons Based on Race/Ethnicity

American Journal of Perinatology ◽

10.1055/s-0038-1668554 ◽

2018 ◽

Vol 36 (04) ◽

pp. 383-392

Author(s):

Juan Yang ◽

Rebecca Baer ◽

Paul Chung ◽

Laura Jelliffe-Pawlowski ◽

Tumaini Coker ◽

...

Keyword(s):

Logistic Regression ◽

Risk Factor ◽

Preterm Birth ◽

Preterm Delivery ◽

Clinical Characteristics ◽

Birth Registry ◽

Live Births ◽

Increased Risk ◽

Race Ethnicity ◽

Racial Ethnic

Objective Multiple studies have examined cross-generational patterns of preterm birth (PTB), yet results have been inconsistent and generally focused on primarily white populations. We examine the cross-generational PTB risk across racial/ethnic groups. Study Design Retrospective study of 388,474 grandmother–mother–infant triads with infants drawn from birth registry of singleton live births between 2005 and 2011 in California. Using logistic regression (odds ratios [ORs] and confidence intervals [CIs]), we examined the risk of preterm delivery by gestational age, sociodemographic, socioeconomic, and obstetric clinical characteristics stratified by maternal race/ethnicity. Results The risk of having a preterm infant <32 weeks was greater for women born at <32 weeks (OR: 2.09, 95% CI: 1.62–2.70) and 32 to 36 weeks (OR: 1.51, 95% CI: 1.35–1.70). This increased risk of preterm delivery was present among women in all race/ethnicity groups (white [AOR: 2.00, 95% CI: 1.52–2.63), black [AOR: 1.79, 95% CI: 1.37–2.34], Hispanic [AOR: 2.39, 95% CI: 2.05–2.79], and Asian [AOR: 2.12, 95% CI: 1.20–3.91]), with hypertension as the only consistent risk factor associated with increased risk of preterm delivery. Conclusion Our findings suggest a cross-generational risk of PTB that is consistent across race/ethnicity with hypertension as the only consistent risk factor.

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Abstract 15407: Comorbidities and the Associated Long-term Utilization of Transthoracic Echocardiography Among Medicare Beneficiaries at a Large Academic Center

Circulation ◽

10.1161/circ.142.suppl_3.15407 ◽

2020 ◽

Vol 142 (Suppl_3) ◽

Author(s):

Patrick M Hyland ◽

Jiaman Xu ◽

Changyu Shen ◽

Lawrence Markson ◽

Warren J Manning ◽

...

Keyword(s):

Myocardial Infarction ◽

Heart Failure ◽

Chronic Kidney Disease ◽

Kidney Disease ◽

Transthoracic Echocardiography ◽

Medicare Beneficiaries ◽

Female Sex ◽

History Of

Introduction: The association between baseline patient characteristics and the long-term utilization of transthoracic echocardiography (TTE) is unknown and may help focus value-based care initiatives. Methods: TTE reports from patients with ≥ 2 TTEs at our institution were linked to 100% Medicare Fee-for-service inpatient claims, 1/1/2000 – 12/31/2017. To avoid inclusion of individuals with short-interval follow-up, TTEs with < 1 year between studies were excluded. Validated claims algorithms were used to create 12 baseline cardiovascular comorbidities. Multivariable Poisson regression was used to estimate adjusted rates of TTE intensity according to baseline comorbidities. Results: Over a median (IQR) follow-up of 5.8 (3.1 – 9.5) years, 18,579 individuals (69.3 ± 12.8 years; 50.5% female) underwent a total of 59,759 TTEs (range 2 – 59). The median TTE intensity was 0.64 TTEs/patient/year (IQR 0.35 – 1.24; range 0.11 – 22.02). The top five contributors to TTE intensity were heart failure, chronic kidney disease, history of myocardial infarction, smoking, and hyperlipidemia ( Figure ). Female sex was associated with decreased TTE utilization (adjusted RR 0.95, 95% CI 0.94-0.96, p < 0.0001). Atrial fibrillation, hypertension, and history of ischemic stroke or transient ischemic attack were not significantly related to TTE intensity after multivariable adjustment (all p > 0.05). Conclusions: Among Medicare beneficiaries with ≥ 2 TTEs at our institution, the median TTE intensity was 0.64 TTEs/patient/year but varied widely. Heart failure, chronic kidney disease, and history of myocardial infarction were the strongest predictors of increased utilization. Female sex was associated with decreased utilization, reflecting broader disparities in utilization of cardiovascular procedures. Further research is needed to clarify reasons for this sex disparity and associations with cardiovascular outcomes.

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The obese patient (metabolic syndrome)

10.1093/med/9780199592548.003.0168 ◽

2015 ◽

Author(s):

Maarit Korkeila ◽

Bengt Lindholm ◽

Peter Stenvinkel

Keyword(s):

Risk Factors ◽

Metabolic Syndrome ◽

Chronic Kidney Disease ◽

Kidney Disease ◽

Overweight And Obesity ◽

Blood Cholesterol ◽

Long Term Effects ◽

Reverse Epidemiology ◽

Increased Risk

Overweight and obesity cause pathophysiological changes in renal function and increase the risk for chronic kidney disease in otherwise healthy subjects. This should not be a surprise as the risk factors for metabolic syndrome largely overlap with those for chronic kidney disease. Intentional weight loss has beneficial effects on risk factors, but long term effects are less clear. Bariatric surgery does seem to achieve rapid benefits on blood pressure and proteinuria as well as on other aspects of metabolic syndrome, but its long term implications for kidney function are less clear cut as there may be an increased risk of nephrolithiasis, and possibly AKI and other complications.Obesity in haemodialysis patients is one of those paradoxical examples of reverse epidemiology where a factor associated with negative outcomes in the general population is associated with better outcomes in dialysis patients. The same is true for high blood cholesterol values. Interpretation is complicated by complex competing outcomes and confounders.

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Helping people to live well with chronic kidney disease

British Journal of Hospital Medicine ◽

10.12968/hmed.2020.0069 ◽

2020 ◽

Vol 81 (6) ◽

pp. 1-10 ◽

Cited By ~ 1

Author(s):

Simon Fraser ◽

Maarten Taal

Keyword(s):

Quality Of Life ◽

Chronic Kidney Disease ◽

Kidney Disease ◽

Treatment Burden ◽

Pharmacological Interventions ◽

Increased Risk ◽

Future Risk ◽

Poor Outcomes

Reduced glomerular filtration rate and presence of albuminuria are both associated with increased risk of several poor outcomes. People with chronic kidney disease also commonly suffer from lower quality of life than their age-matched peers. The experiences reported by patients with chronic kidney disease include being shocked by the diagnosis, being uncertain about the cause and worrying about progression and future treatment. Issues such as depression, pain and fatigue are common in people with chronic kidney disease. Helping people to live well with a long-term condition like chronic kidney disease should include efforts to reduce the risk of adverse events occurring in the future, and consider what can be done to enhance quality of life now. Clinicians can help by being aware of the patient perspective, communicating clearly and recommending interventions that reduce future risk as well as recognising and treating symptoms. Assessing overall treatment burden is an important component of management and non-pharmacological interventions that may improve mobility, strength and pain should be considered.

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Feasibility of evaluation of the natural history of kidney disease in the general population using electronic healthcare records

Clinical Kidney Journal ◽

10.1093/ckj/sfaa175 ◽

2020 ◽

Author(s):

Faye Cleary ◽

David Prieto-Merino ◽

Sally Hull ◽

Ben Caplin ◽

Dorothea Nitsch

Keyword(s):

Chronic Kidney Disease ◽

Kidney Disease ◽

General Population ◽

Natural History ◽

Sufficient Information ◽

Long Term Changes ◽

History Of ◽

Method Of Evaluation ◽

Changes Over Time

Abstract Background Knowledge about the nature of long-term changes in kidney function in the general population is sparse. We aim to identify whether primary care electronic healthcare records capture sufficient information to study the natural history of kidney disease. Methods The National Chronic Kidney Disease Audit database covers ∼14% of the population of England and Wales. Availability of repeat serum creatinine tests was evaluated by risk factors for chronic kidney disease (CKD) and individual changes over time in estimated glomerular filtration rate (eGFR) were estimated using linear regression. Sensitivity of estimation to method of evaluation of eGFR compared laboratory-reported eGFR and recalculated eGFR (using laboratory-reported creatinine), to uncover any impact of historical creatinine calibration issues on slope estimation. Results Twenty-five per cent of all adults, 92% of diabetics and 96% of those with confirmed CKD had at least three creatinine tests, spanning a median of 5.7 years, 6.2 years and 6.1 years, respectively. Median changes in laboratory-reported eGFR (mL/min/1.73 m2/year) were −1.32 (CKD) and −0.60 (diabetes). Median changes in recalculated eGFR were −0.98 (CKD) and −0.11 (diabetes), underestimating decline. Magnitude of underestimation (and between-patient variation in magnitude) decreased with deteriorating eGFR. For CKD Stages 3, 4 and 5 (at latest eGFR), median slopes were −1.27, −2.49 and -3.87 for laboratory-reported eGFR and −0.89, −2.26 and −3.75 for recalculated eGFR. Conclusions Evaluation of long-term changes in renal function will be possible in those at greatest risk if methods are identified to overcome creatinine calibration problems. Bias will be reduced by focussing on patients with confirmed CKD.

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Cardiac status in patients of chronic kidney disease: an assessment by non-invasive tools

Bangladesh Journal of Medical Science ◽

10.3329/bjms.v15i2.23596 ◽

2016 ◽

Vol 15 (2) ◽

pp. 207-215

Author(s):

Kiran Kumar Singal ◽

Neerja Singal ◽

Parveen Gupta ◽

Jagdish Chander ◽

Pankaj Relan

Keyword(s):

Cardiovascular Disease ◽

Chronic Kidney Disease ◽

Kidney Disease ◽

Left Ventricular Mass ◽

Left Ventricular ◽

Treatment Schedule ◽

Ventricular Mass ◽

Increased Risk ◽

History Of ◽

Cardiac Status

Background: Chronic Renal Insufficiency is a major public health problem. Cardiovascular Disease is the leading cause of morbidity and mortality in patients at every stage of Chronic Kidney Disease. There is a 10-200 fold increased risk of cardiovascular disease in those with Chronic Kidney Disease compared to the age and sex matched with general population, depending on the stage of Chronic Kidney Disease. Objective: The objective of the study was to see correlation, if any, of cardiac status and stage of kidney disease. Materials and methods: The study was conducted at M. M. Institute of Medical Sciences and Research, Mullana, Ambala. Thirty patients of Chronic Kidney Disease were included in the study. Chronic Kidney Disease is defined as kidney damage lasting for more than 3 months characterised by structural or functional abnormalities of the kidney, with or without decreased Glomerular Filtration Rate (GFR), according to the K/DOQI Guidelines. Inclusion criteria were based on symptomatology and clinical history of features suggestive of Chronic Kidney Disease. Symptoms, Signs and history of the patients were used to filter out patients who did not fit in the criteria and selected patients on the basis of criteria were further evaluated and investigated. All patients were subjected to detailed history and clinical examination. Patients with age <20 years, with history of Diabetes Mellitus, Dyslipidemia, Intrinsic Diseases of Ventricles, Congenital Heart Disease and chronic smokers were excluded from the study. A standard 12 lead ECG was done in all cases. Echocardiography was done in ECHO lab of Cardiology unit in MMIMSR. Echocardiographic assessment was done by using Model vivid Colour Doppler Echocardiography machine of GE make. Apical four chamber view was employed to obtain the measurements of Left ventricular volume in diastole and systole, Ejection fraction; Left Ventricular Indices were assessed and then were used to calculate Left Ventricular Mass by using the cube formula proposed by Devereux. Patients included in the study were treated as per the standard treatment schedule. The data obtained was analysed with appropriate statistical analysis tools at the end of the study and conclusive evidence was derived. Results: In the present study the mean Left Ventricular Mass was 249.76 ± 69.35 gms with 73% study cases having Left Ventricular Mass more than the reference range, also Left Ventricular Mass showed a progressive rise with increase in S. Creatinine levels. In the present study, Left Ventricular dysfunction was seen in nearly half of the cases while approximately one-fourth cases (23%) also had Systolic Dysfunction. Pericardial Effusion was also observed in 10 % the study cases in the present study.Conclusion: Cardiac functions particularly Left Ventricular parameters. Left Ventricular free wall thickness and Left Ventricular Mass being common abnormality in CKD patients.Bangladesh Journal of Medical Science Vol.15(2) 2016 p.207-215

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Delayed Chronic Kidney Disease (CKD) after Hematopoietic Cell Transplantation (HCT).

Blood ◽

10.1182/blood.v108.11.552.552 ◽

2006 ◽

Vol 108 (11) ◽

pp. 552-552

Author(s):

Andrea R. Carter ◽

Michael Choi ◽

Can-Lan Sun ◽

Liton Francisco ◽

Stephen J. Forman ◽

...

Keyword(s):

Risk Factors ◽

Chronic Kidney Disease ◽

Kidney Disease ◽

Unrelated Donor ◽

Transplant Recipients ◽

Increased Risk ◽

Autologous Hct ◽

One Year

Abstract Exposure to pre-transplant nephrotoxic agents, total body irradiation (TBI), and presence of chronic graft-versus-host disease (cGVHD) have been identified as risk factors for developing CKD after HCT. However, small sample size, short follow-up post-HCT, and varying definitions of CKD have precluded a precise estimation of the magnitude of risk and associated risk factors. The aim of the current study was to describe the incidence and risk factors associated with the development of delayed CKD in HCT survivors. Eligible subjects underwent HCT for hematological malignancies or severe aplastic anemia at City of Hope, survived at least one year post-transplant, and were free of CKD at one year post-HCT. Information on pre-transplant therapeutic exposures and post-transplant CKD was obtained via medical record abstraction. All CKD cases were defined according to the National Kidney Foundation’s definition based on glomerular filtration rate (GFR) values. The endogenous filtration marker creatinine was used to estimate GFR values. CKD was defined as a sustained elevation of serum creatinine which infer a GFR of less than 60 mL/min/1.73 m2 for 3 months or longer. The equation used to calculate GFR was as follows: GFR = 186 x (Pcr) −1.154 x (age) − 0.203 (x 0.742 if female) (x 1.210 if African American). Totally, 1,546 eligible subjects were identified (median age at HCT of 34.4, median length of follow-up 6.2 years; autologous HCT in 718 patients [46%], related donor HCT in 726 patients [47%], and unrelated donor HCT in 102 patients [7%]; 59% of subjects (n=913) were male). A total of 65 patients were identified with CKD, resulting in a cumulative incidence of 3.6% [95% confidence interval (CI), 2.6% to 4.6%] at five years post–HCT and 4.8% at 10 years (autologous HCT: 2.9% at five years; matched sibling HCT: 4.1%; matched unrelated donor HCT: 10.5%, p<0.05). In allogeneic transplant recipients, older age at HCT (RR per increase of five years, 1.34; 95% CI, 1.30 to 1.38), prophylaxis/treatment of GvHD with cyclosporine and/or tacrolimus (RR, 4.32; 95% CI, 1.25 to 14.89), and a primary diagnosis of Multiple Myeloma (RR=5.38, 95% CI=1.79 to 16.15) were associated with increased risk. For autologous transplant recipients, older age at HCT was associated with increased risk (RR per increase of five years, 1.33; 95% CI, 1.29 to 1.38). Of note, use of TBI, and chemotherapeutic agents for conditioning, and a history of fungal infection were not associated with risk of delayed CKD development. This study describes the magnitude of risk of delayed chronic kidney disease in a large cohort of long-term survivors of autologous and allogeneic HCT, as well as identifies high risk groups in this population, thus setting the stage for appropriate long-term follow-up of the vulnerable sub–groups. Incidence of Chronic Kidney Disease in 1+ Year Survivors of HCT Incidence of Chronic Kidney Disease in 1+ Year Survivors of HCT Incidence of Chronic Kidney Disease in 1+ Year Survivors of HCT (by Type of Transplant) Incidence of Chronic Kidney Disease in 1+ Year Survivors of HCT (by Type of Transplant)

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