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. 2024 Jul 20;7(6):100877.
doi: 10.1016/j.xkme.2024.100877. eCollection 2025 Jun.

Cardiovascular and Thromboembolic Events in Children and Adults With Glomerular Disease: Findings From the Cure GlomeruloNephropathy (CureGN) Network

Shikha Wadhwani  1 , Sarah A Mansfield  2 , Abigail R Smith  2 , Bruce M Robinson  3 , Eman Abdelghani  4 , Amira Al-Uzri  5 , Isa F Ashoor  6 , Sharon M Bartosh  7 , Aftab S Chishti  8   9 , Salim S Hayek  10 , Michelle A Hladunewich  11 , Bryce A Kerlin  4   12 , Siddharth S Madapoosi  3 , Laura H Mariani  3 , Amy K Mottl  13 , Michelle N Rheault  14 , Michelle M O'Shaughnessy  15 , Christopher John Sperati  16 , Tarak Srivastava  17 , David T Selewski  18 , Chia-Shi Wang  19 , Craig S Wong  20 , Donald J Weaver Jr  21 , Myda Khalid  22 ; GlomeruloNephropathy (CureGN) Study Consortium
Affiliations

Cardiovascular and Thromboembolic Events in Children and Adults With Glomerular Disease: Findings From the Cure GlomeruloNephropathy (CureGN) Network

Shikha Wadhwani et al. Kidney Med. .

Abstract

Rationale & objective: Cardiovascular (CV) and thromboembolic (TE) events are known complications of glomerular disease (GD), but their incidence and risk factors are poorly characterized. This analysis describes CV and TE outcomes in the Cure GlomeruloNephropathy (CureGN) Network.

Study design: Prospective cohort study.

Setting & participants: CureGN is a prospective cohort study of children and adults with biopsy-proven minimal change disease (MCD), focal segmental glomerulosclerosis (FSGS), membranous nephropathy (MN), or IgA nephropathy (IgAN)/vasculitis (IgAV). Data from 2,545 children and adults (23% MCD, 23% MN, 25% FSGS, 29% IgAN/IgAV) was analyzed.

Exposure: Estimated glomerular filtration rate (eGFR), proteinuria, serum albumin, tobacco use, body mass index, hypertension, renin-angiotensin-aldosterone system.

Outcomes: CV and TE events.

Analytic approach: Kaplan-Meier curves were used to estimate cumulative incidence, and multivariable Cox proportional hazards models were fitted to estimate associations of histologic diagnosis, age, biological sex, and race. Laboratory and other clinical data were evaluated separately in models adjusted for base model covariates.

Results: Median follow-up time was 4.6 years (IQR 2.7-6.1). The cumulative incidence of first CV and TE event postbiopsy was 3% and 2% in children and 10% and 5% in adults, respectively. No association between GD subtype and risk of CV or TE event was detected. Older age and Black race were associated with higher risk of first CV and TE event {hazard ratio (HR) (95% confidence interval {CI}) per 5 years, CV = 1.17 (1.12-1.23); TE = 1.11 (1.05-1.18); for Black race, CV = 1.62 (1.03-2.56), TE = 2.25 (1.27-4.01)}. Lower eGFR, higher urinary protein-creatinine ratio (UPCR), and lower serum albumin levels at enrollment were associated with higher risk of first CV and TE event (eGFR per 10 mL/min/1.73 m2, CV = 0.87 [0.81-0.93], TE = 0.80 [0.73-0.88]; UPCR per mg/mg, CV = 1.04 [1.02-1.07], TE = 1.03 [1.00-1.07]; serum albumin per g/dL, CV = 0.75 [0.59-0.95], TE = 0.71 [0.53-0.96]).

Limitations: Age of cohort, duration of follow-up.

Conclusions: In the CureGN cohort, elevated risk of incident CV and TE events is associated with severity of kidney disease rather than GD subtype.

Keywords: Cardiovascular; glomerular disease; thromboembolic.

Plain language summary

Individuals with glomerular disease are at risk for cardiovascular and thromboembolic events. The aim of our study was to determine the frequency and risk factors for such events in adults and children with minimal change disease, focal segmental glomerulosclerosis, membranous nephropathy, and IgA nephropathy/vasculitis enrolled in the CureGN study. Our ultimate goal is to equip physicians with tools to identify high-risk individuals and help develop mitigative therapies. We found that poor kidney function, low serum albumin level, and high levels of urine protein at the time participants entered the study, along with older age and self-reported Black race were associated with a higher risk of both cardiovascular and thromboembolic events. In addition, these risk factors are more important than the specific type of glomerular disease.

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Figures

Figure 1
Figure 1
Cumulative incidence of cardiovascular and thromboembolic events since biopsy.
Figure 2
Figure 2
Cumulative incidence of cardiovascular and thromboembolic events since biopsy, by diagnosis and age at biopsy.
Figure 3
Figure 3
Cox proportional hazards model time from enrollment to first cardiovascular event (N = 2,299 participants).
Figure 4
Figure 4
Cox proportional hazards model time from enrollment to first thromboembolic event (N = 2,402 participants).
See this image and copyright information in PMC

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