Metabolic Acidosis and Cardiovascular Disease in CKDPlain-Language Summary

Rationale & Objective: Metabolic acidosis related to chronic kidney disease (CKD) is associated with an accelerated decline in glomerular filtration rate (GFR) and the development of end-stage kidney disease. Whether metabolic acidosis is associated with cardiovascular (CV) events in patient...

Full description

Bibliographic Details
Main Authors: David Collister, Thomas W. Ferguson, Susan E. Funk, Nancy L. Reaven, Vandana Mathur, Navdeep Tangri
Format: Article
Language:English
Published: Elsevier 2021-09-01
Series:Kidney Medicine
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2590059521001151
_version_ 1818391084086067200
author David Collister
Thomas W. Ferguson
Susan E. Funk
Nancy L. Reaven
Vandana Mathur
Navdeep Tangri
author_facet David Collister
Thomas W. Ferguson
Susan E. Funk
Nancy L. Reaven
Vandana Mathur
Navdeep Tangri
author_sort David Collister
collection DOAJ
description Rationale &amp; Objective: Metabolic acidosis related to chronic kidney disease (CKD) is associated with an accelerated decline in glomerular filtration rate (GFR) and the development of end-stage kidney disease. Whether metabolic acidosis is associated with cardiovascular (CV) events in patients with CKD is unclear. Study Design: Retrospective cohort study. Setting &amp; Participants: The Optum De-identified Electronic Health Records Dataset, 2007–2017, was used to generate a cohort of patients with non-dialysis-dependent CKD who had at least 3 estimated GFR < 60 mL/min/1.73 m2. Patients with metabolic acidosis (serum bicarbonate 12 to <22 mEq/L) or normal serum bicarbonate (22‒29 mEq/L) at baseline were identified by 2 consecutive measurements 28‒365 days apart. Predictor: Serum bicarbonate as a continuous variable. Outcome: Primary outcome was a composite of major adverse cardiovascular events (MACE+). Secondary outcomes included individual components of the composite outcome. Analytical Approach: Cox proportional hazards models to evaluate the association between 1-mEq/L increments in serum bicarbonate and MACE+. Results: A total of 51,558 patients were evaluated, 34% had metabolic acidosis. The median follow-up period was 3.9–4.5 years, depending on the outcome assessed. The adjusted hazard ratio (HR) for MACE+ was 0.964 (95% CI, 0.961–0.968). For the individual components of incident heart failure (HF), stroke, myocardial infarction (MI), and CV death, HRs were 0.98 (95% CI, 0.97–0.98), 0.98 (95% CI, 0.97–0.99), 0.96 (95% CI, 0.96–0.97), and 0.94 (95% CI, 0.93–0.94), respectively, for every 1-mEq/L increase in serum bicarbonate. Limitations: Possible residual confounding. Conclusions: Metabolic acidosis in CKD is associated with an increased risk of MACE+ as well as the individual components of incident HF, stroke, MI, and CV death. Randomized controlled trials evaluating treatments for the correction of metabolic acidosis in CKD to prevent CV events are needed.
first_indexed 2024-12-14T05:07:54Z
format Article
id doaj.art-e08cffb18e9d4f4fb3dcf0fd67c103f0
institution Directory Open Access Journal
issn 2590-0595
language English
last_indexed 2024-12-14T05:07:54Z
publishDate 2021-09-01
publisher Elsevier
record_format Article
series Kidney Medicine
spelling doaj.art-e08cffb18e9d4f4fb3dcf0fd67c103f02022-12-21T23:16:04ZengElsevierKidney Medicine2590-05952021-09-0135753761.e1Metabolic Acidosis and Cardiovascular Disease in CKDPlain-Language SummaryDavid Collister0Thomas W. Ferguson1Susan E. Funk2Nancy L. Reaven3Vandana Mathur4Navdeep Tangri5Department of Medicine, McMaster University, Hamilton, ON, CanadaDepartment of Internal Medicine, Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, MB, CanadaStrategic Health Resources, La Cañada, CAStrategic Health Resources, La Cañada, CAMathur Consulting, Woodside, CADepartment of Internal Medicine, Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, MB, Canada; Address for Correspondence: Navdeep Tangri, MD, PhD, Seven Oaks General Hospital, 2LB19-2300 McPhillips St, Winnipeg, MB, Canada R2V 3M3.Rationale &amp; Objective: Metabolic acidosis related to chronic kidney disease (CKD) is associated with an accelerated decline in glomerular filtration rate (GFR) and the development of end-stage kidney disease. Whether metabolic acidosis is associated with cardiovascular (CV) events in patients with CKD is unclear. Study Design: Retrospective cohort study. Setting &amp; Participants: The Optum De-identified Electronic Health Records Dataset, 2007–2017, was used to generate a cohort of patients with non-dialysis-dependent CKD who had at least 3 estimated GFR < 60 mL/min/1.73 m2. Patients with metabolic acidosis (serum bicarbonate 12 to <22 mEq/L) or normal serum bicarbonate (22‒29 mEq/L) at baseline were identified by 2 consecutive measurements 28‒365 days apart. Predictor: Serum bicarbonate as a continuous variable. Outcome: Primary outcome was a composite of major adverse cardiovascular events (MACE+). Secondary outcomes included individual components of the composite outcome. Analytical Approach: Cox proportional hazards models to evaluate the association between 1-mEq/L increments in serum bicarbonate and MACE+. Results: A total of 51,558 patients were evaluated, 34% had metabolic acidosis. The median follow-up period was 3.9–4.5 years, depending on the outcome assessed. The adjusted hazard ratio (HR) for MACE+ was 0.964 (95% CI, 0.961–0.968). For the individual components of incident heart failure (HF), stroke, myocardial infarction (MI), and CV death, HRs were 0.98 (95% CI, 0.97–0.98), 0.98 (95% CI, 0.97–0.99), 0.96 (95% CI, 0.96–0.97), and 0.94 (95% CI, 0.93–0.94), respectively, for every 1-mEq/L increase in serum bicarbonate. Limitations: Possible residual confounding. Conclusions: Metabolic acidosis in CKD is associated with an increased risk of MACE+ as well as the individual components of incident HF, stroke, MI, and CV death. Randomized controlled trials evaluating treatments for the correction of metabolic acidosis in CKD to prevent CV events are needed.http://www.sciencedirect.com/science/article/pii/S2590059521001151Cardiovascularchronic kidney diseaseCKDheart failuremajor adverse cardiovascular eventsmetabolic acidosis
spellingShingle David Collister
Thomas W. Ferguson
Susan E. Funk
Nancy L. Reaven
Vandana Mathur
Navdeep Tangri
Metabolic Acidosis and Cardiovascular Disease in CKDPlain-Language Summary
Kidney Medicine
Cardiovascular
chronic kidney disease
CKD
heart failure
major adverse cardiovascular events
metabolic acidosis
title Metabolic Acidosis and Cardiovascular Disease in CKDPlain-Language Summary
title_full Metabolic Acidosis and Cardiovascular Disease in CKDPlain-Language Summary
title_fullStr Metabolic Acidosis and Cardiovascular Disease in CKDPlain-Language Summary
title_full_unstemmed Metabolic Acidosis and Cardiovascular Disease in CKDPlain-Language Summary
title_short Metabolic Acidosis and Cardiovascular Disease in CKDPlain-Language Summary
title_sort metabolic acidosis and cardiovascular disease in ckdplain language summary
topic Cardiovascular
chronic kidney disease
CKD
heart failure
major adverse cardiovascular events
metabolic acidosis
url http://www.sciencedirect.com/science/article/pii/S2590059521001151
work_keys_str_mv AT davidcollister metabolicacidosisandcardiovasculardiseaseinckdplainlanguagesummary
AT thomaswferguson metabolicacidosisandcardiovasculardiseaseinckdplainlanguagesummary
AT susanefunk metabolicacidosisandcardiovasculardiseaseinckdplainlanguagesummary
AT nancylreaven metabolicacidosisandcardiovasculardiseaseinckdplainlanguagesummary
AT vandanamathur metabolicacidosisandcardiovasculardiseaseinckdplainlanguagesummary
AT navdeeptangri metabolicacidosisandcardiovasculardiseaseinckdplainlanguagesummary