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Aims: This study aimed to evaluate the bidirectional relationship between kidney and cardiovascular (CV) events in trial participants with type 2 diabetes and CV disease. Methods and results: Post hoc analyses of EMPA‐REG OUTCOME using Cox regression models were performed to assess the association of baseline factors with risk of a kidney event and bidirectional associations of incident kidney events and CV events. Among placebo‐treated participants, baseline factors significantly associated with greater kidney event risk included lower baseline estimated glomerular filtration rate, albuminuria, higher uric acid, low‐density lipoprotein cholesterol levels, and prior heart failure (HF). Coronary artery disease was not associated with increased risk. In placebo‐treated participants, occurrence of an incident non‐fatal kidney event increased the subsequent risk of hospitalization for HF (HHF) but not 3‐point major adverse CV events (non‐fatal stroke, non‐fatal myocardial infarction, and CV death). Vice versa, HHF (but not myocardial infarction/stroke) increased the risk of subsequent kidney events. These associations were generally also seen in empagliflozin‐treated participants and in the overall population. Interestingly, the risk of kidney events following HHF was not significantly increased in the relatively small number of placebo‐treated participants already diagnosed with HF at baseline. Conclusions: These findings demonstrate a bidirectional inter‐relationship between HHF and kidney events. Further exploration of this relationship and strategies to optimize the use of therapies to reduce both kidney and HF outcomes is warranted. [ABSTRACT FROM AUTHOR]

Importance: Acute kidney injury (AKI) is a common complication during hospitalization and is associated with adverse outcomes., Objective: To evaluate whether diagnostic and therapeutic recommendations sent by a kidney action team through the electronic health record improve outcomes among patients hospitalized with AKI compared with usual care., Design, Setting, and Participants: Randomized clinical trial conducted at 7 hospitals in 2 health systems: in New Haven, Bridgeport, New London, and Waterbury, Connecticut, and Westerly, Rhode Island; and in Baltimore, Maryland. Hospitalized patients with AKI were randomized between October 29, 2021, and February 8, 2024. Final follow-up occurred February 22, 2024., Intervention: An alert about AKI was sent to the kidney action team, consisting of a study physician and study pharmacist, which sent personalized recommendations through the electronic health record in 5 major categories (diagnostic testing, volume, potassium, acid base, and medications) within 1 hour of AKI detection. The note was immediately visible to anyone with access to the electronic health record. Randomization to the intervention or usual care occurred after the recommendations were generated, but the note was only delivered to clinicians of patients randomized to the intervention group., Main Outcomes and Measures: The primary outcome was a composite outcome consisting of AKI progression to a higher stage of AKI, dialysis, or mortality occurring while the patient remained hospitalized and within 14 days from randomization., Results: Of the 4003 patients randomized (median age, 72 years [IQR, 61-81 years), 1874 (47%) were female and 931 (23%) were Black patients. The kidney action team made 14 539 recommendations, with a median of 3 (IQR, 2-5) per patient. The primary outcome occurred in 19.8% of the intervention group and in 18.4% in the usual care group (difference, 1.4%, 95% CI, -1.1% to 3.8,% P = .28). Of 6 secondary outcomes, only 1 secondary outcome, rates of recommendation implementation, significantly differed between the 2 groups: 2459 of 7270 recommendations (33.8%) were implemented in the intervention group and 1766 of 7269 undelivered recommendations (24.3%) were implemented in the usual care group within 24 hours (difference, 9.5%; 95% CI, 8.1% to 11.0%)., Conclusions and Relevance: Among patients hospitalized with AKI, recommendations from a kidney action team did not significantly reduce the composite outcome of worsening AKI stage, dialysis, or mortality, despite a higher rate of recommendation implementation in the intervention group than in the usual care group., Trial Registration: ClinicalTrials.gov Identifier: NCT04040296.

Background: Guideline-directed medical therapy (GDMT) for heart failure with reduced ejection fraction (HFrEF) remains underused. Acute heart failure (HF) hospitalization represents a critical opportunity for rapid initiation of evidence-based medications. However, data on GDMT use at discharge are mostly derived from national quality improvement registries., Objectives: This study aimed to describe contemporary GDMT use patterns across HF hospitalizations at community-based health systems., Methods: The authors identified HF hospitalizations from 2016 to 2022 in a U.S. database aggregating deidentified electronic health record data from more than 30 health systems. In-hospital and discharge rates of GDMT use were reported for eligible HFrEF patients. Factors associated with inpatient GDMT use and predischarge discontinuation were evaluated with the use of multivariable models., Results: A total of 20,387 HF hospitalizations among 13,729 HFrEF patients were identified. Renin-angiotensin system inhibitors, beta-blockers, and mineralocorticoid receptor antagonists were administered during 70%, 86%, and 37% of eligible hospitalizations, respectively. Angiotensin receptor-neprilysin inhibitors and sodium-glucose cotransporter 2 inhibitors were used in 17% and 8% of eligible hospitalizations, respectively. Discharge GDMT rates were low. Triple/quadruple therapy was administered in 26% of hospitalizations, falling to 14% on discharge. Predischarge GDMT discontinuations were associated with inpatient hypotension, hyperkalemia, and worsening renal function, but 43%-57% had no medical contraindications. In adjusted analyses, use of 3 or more GDMT classes was associated with fewer 90-day all-cause deaths and HF readmissions compared with less comprehensive GDMT., Conclusions: Inpatient GDMT use in a national analysis of HF hospitalizations was lower than reported in quality improvement registries. High discontinuation rates emphasize an unmet need for inpatient and postdischarge strategies to optimize GDMT use., Competing Interests: Funding Support and Author Disclosures Dr Zheng has consulted for Reprieve Cardiovascular. Dr Sandhu has received relevant research support from the National Heart Lung, Blood Institute (1K23HL151672) and the American Heart Association and has consulted for Reprieve Cardiovascular, Lexicon Pharmaceuticals, and Cleerly. Dr Bhatt has received relevant research support through grants to his institution from the National Heart, Lung, and Blood Institute, National Institute on Aging, Centers for Disease Control (CDC), and American College of Cardiology Foundation and has received consulting fees from Sanofi Pasteur and Novo Nordisk. Dr Collins receives research support from the National Institutes of Health, Patient-Centered Outcomes Research Institute, Department of Defense, and Beckman Coulter and consulting fees from Abbott, Redesign Health, and Reprieve Cardiovascular. Dr Flint receives relevant grant funding from Abbott and has consulted for Abbott, Amgen, AstraZeneca, Bayer, Boehringer Ingelheim, Cytokinetics, Eli Lilly, Johnson and Johnson, Medtronic, Merck, Novartis, and Pfizer. Dr Fudim receives research support from Reprieve and consults for Lexicon. Dr Greene has received research support from the Duke University Department of Medicine Chair’s Research Award, American Heart Association (number 929502), Amgen, AstraZeneca, Boehinger Ingelheim, Bristol Myers Squibb, Cytokinetics, Merck, Novartis, Pfizer, and Sanofi; has served on advisory boards or as consultant for Amgen, AstraZeneca, Bayer, Boehringer Ingelheim/Lilly, Bristol Myers Squibb, Corteria, CSL Vifor, Cytokinetics, Lexicon, Merck, Roche Diagnostics, Sanofi, scPharmaceuticals, Tricog Health, and Urovant Pharmaceuticals; and has received speaker fees from Boehringer Ingelheim, Cytokinetics, Lexicon, and Roche Diagnostics. Dr Varshney has received consulting fees from Broadview Ventures. Dr Ambrosy has received relevant research support through grants to his institution from the National Heart, Lung, and Blood Institute (K23HL150159), American Heart Association (2nd Century Early Faculty Independence Award), Permanente Medical Group, Northern California Community Benefits Programs, Garfield Memorial Fund, Abbott Laboratories, Amarin Pharma, Edwards Lifesciences, Esperion Therapeutics, and Novartis. All other authors have reported that they have no relationships relevant to the contents of this paper to disclose., (Copyright © 2024 American College of Cardiology Foundation. Published by Elsevier Inc. All rights reserved.)

Importance: COVID-19 infection is associated with a high incidence of acute kidney injury (AKI). Although rapid kidney function decline has been reported in the first few months after COVID-19-associated AKI (COVID-AKI), the longer-term association of COVID-AKI with kidney function remains unknown., Objective: To assess long-term kidney outcomes of patients who had COVID-19-associated AKI., Design, Setting, and Participants: This was a retrospective longitudinal multicenter cohort study conducted in a large hospital system using electronic health records data on adult hospitalized patients with AKI and COVID-19 or other illnesses. Included patients were hospitalized during the COVID-19 pandemic (March 2020-June 2022), were screened for SARS-CoV-2, had AKI, and survived to discharge, or had been hospitalized during the 5 years before the pandemic (October 2016-January 2020), had a positive influenza A or B test result, had AKI, and survived to discharge. Patients were followed up for a maximum of 2 years after hospital discharge. Data analyses were performed from December 2022 to November 2023., Exposure: COVID-19 and influenza., Main Outcomes and Measures: The primary outcome was major adverse kidney events (MAKE), defined as a composite of mortality and worsened kidney function (estimated glomerular filtration rate [eGFR] decline by ≥25% from discharge eGFR or kidney failure requiring dialysis). Multivariable time-to-event analyses were performed to compare MAKE between individuals with COVID-AKI and those who had AKI associated with other illnesses hospitalized during the same period. For further comparison, this outcome was assessed for a historic cohort of patients with influenza-associated AKI., Results: The study cohort included 9624 hospitalized patients (mean [SD] age, 69.0 [15.7] years; 4955 [51.5%] females) with AKI, including 987 patients with COVID-AKI, 276 with influenza-associated AKI, and 8361 with AKI associated with other illnesses (other-AKI). Compared with the other 2 groups, patients with COVID-19-associated AKI were slightly younger in age, had a higher baseline eGFR, worse baseline comorbidity scores, higher markers of illness severity, and longer hospital stay. Compared with the other-AKI group, the COVID-AKI group had lower MAKE (adjusted hazard ratio [aHR], 0.67; 95% CI, 0.59-0.75) due to lower all-cause mortality (aHR, 0.31; 95% CI, 0.24-0.39) and lower rates of worsened kidney function (aHR, 0.78; 95% CI, 0.69-0.88)., Conclusions and Relevance: The findings of this multicenter cohort study indicate that survivors of hospitalization with COVID-AKI experience lower rates of MAKE, long-term kidney function decline, and mortality compared with patients with AKI associated with other illnesses.

Implantable devices form an integral part of the management of patients with heart failure (HF) and provide adjunctive therapies in addition to cornerstone drug treatment. Although the number of these devices is growing, only few are supported by robust evidence. Current devices aim to improve haemodynamics, improve reverse remodelling, or provide electrical therapy. A number of these devices have guideline recommendations and some have been shown to improve outcomes such as cardiac resynchronization therapy, implantable cardioverter-defibrillators and long-term mechanical support. For others, more evidence is still needed before large-scale implementation can be strongly advised. Of note, devices and drugs can work synergistically in HF as improved disease control with devices can allow for further optimization of drug therapy. Therefore, some devices might already be considered early in the disease trajectory of HF patients, while others might only be reserved for advanced HF. As such, device therapy should be integrated into HF care programmes. Unfortunately, implementation of devices, including those with the greatest evidence, in clinical care pathways is still suboptimal. This clinical consensus document of the Heart Failure Association (HFA) and European Heart Rhythm Association (EHRA) of the European Society of Cardiology (ESC) describes the physiological rationale behind device-provided therapy and also device-guided management, offers an overview of current implantable device options recommended by the guidelines and proposes a new integrated model of device therapy as a part of HF care., (© 2024 European Society of Cardiology.)