Publications by authors named "Mariam E Malik"

Aims: Iron deficiency (ID) is prevalent in chronic heart failure (HF) but lacks a consensus definition. This study evaluates the prevalence and the prognostic impact of ID using different criteria on all-cause and cardiovascular mortality, as well as first hospitalization for HF in patients with new-onset chronic HF.

Methods: In this nationwide registry-based cohort, we explored four definitions of ID: the current European Society of Cardiology (ESC) guidelines [ferritin <100 ng/mL or ferritin 100-299 ng/mL and transferrin saturation (TSAT) <20%], ferritin level <100 ng/mL, TSAT < 20% and serum iron ≤13 μmol/L.

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Background: Despite improved survival, hospitalization is still common among patients with heart failure (HF).

Objective: This study aimed to examine temporal trends in infection-related hospitalization among HF patients and compare it to temporal trends in the risk of HF hospitalization and death.

Methods: Using Danish nationwide registers, we included all patients aged 18 to 100 years, with HF diagnosed between January 1, 1997 and December 31, 2017, resulting in a total population of 147.

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Aims: We aimed to investigate temporal trends in all-cause mortality, heart failure (HF) hospitalisation, and stroke from 1997 to 2018 in patients diagnosed with both HF and atrial fibrillation (AF).

Methods And Results: From Danish nationwide registers, we identified 152 059 patients with new-onset HF between 1997 and 2018. Patients were grouped according to year of new-onset HF and AF-status: Prevalent AF (n = 34 734), New-onset AF (n = 12 691), and No AF (n = 104 634).

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Background: Despite advances in heart failure care reducing mortality in clinical trials, it remains unclear whether real-life cohorts have had similar improvements in life expectancy across the age spectrum. We aimed to investigate how mortality trends changed in patients with heart failure over the past 25 years, stratified by age groups.

Methods: Using Danish nationwide registries, we identified patients with new-onset heart failure aged 18-95 years.

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Background: The incidence and distribution of acute and chronic dialysis among patients with heart failure (HF), stratified by diabetes, remain uncertain. We hypothesized that with improved survival and rising comorbidities, the demand for dialysis would increase over time.

Methods And Results: Patients with incident HF, aged 18 to 100 years, between 2002 and 2016, were identified using Danish nationwide registers.

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Background: Whether frailty influences the initiation of two cardioprotective diabetes drug therapies (ie, SGLT2 inhibitors and GLP-1 receptor agonists) in people with type 2 diabetes and cardiovascular disease is unknown. We aimed to assess rates of initiation of SGLT2 inhibitors and GLP-1 receptor agonists according to frailty in people with type 2 diabetes and cardiovascular disease.

Methods: For this cross-sectional, nationwide study, all people with type 2 diabetes and cardiovascular disease in Denmark between Jan 1, 2015, and Dec 31, 2021, from six Danish health-data registers were identified.

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Article Synopsis
  • * Analyzed data from over 42,000 HF patients highlighted that those with poor kidney function were older and frailer, with lower initiation rates for certain medications as kidney function declined.
  • * Results indicated that while medication initiation for mineralocorticoid receptor antagonists (MRA) decreased with reduced kidney function, age and frailty primarily impacted the use of RAS inhibitors and beta-blockers (BB) in those with moderate kidney dysfunction.
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Background: Small observational studies have observed poor persistency to sodium-glucose cotransporter-2 inhibitors (SGLT2-i) and glucacon-like-peptide-1-receptor agonists (GLP1-RA), contrary to what has been reported in clinical trials. Therefore, we investigated the risk of discontinuing SGLT2-is and GLP1-RAs in patients with type 2 diabetes (T2D) in a nationwide population.

Methods: From Danish nationwide registers, all first-time users of SGLT2-is and GLP1-RAs from 2013 to 2021 were identified.

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Background: Fluid retention and endothelial dysfunction have been related to use of nonsteroidal anti-inflammatory drugs (NSAIDs), and type 2 diabetes mellitus (T2DM) has been linked to both a decline in kidney function and subclinical cardiomyopathy.

Objectives: The authors hypothesized that short-term use of NSAIDs could lead to subsequent development of incident heart failure (HF) in patients with T2DM.

Methods: Using nationwide Danish registers, we identified patients diagnosed with T2DM during 1998 to 2021 and included patients without previous HF, rheumatic disease, or use of NSAIDs 120 days before diagnosis.

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Importance: Updated guidelines on diabetes recommend targeting sodium-glucose cotransporter-2 inhibitors (SGLT2i) at patients at risk of heart failure (HF) and glucagon-like peptide-1 receptor agonists (GLP1-RA) at those at greater risk of atherothrombotic events.

Objective: We estimated the risk of different cardiovascular events in patients with type 2 diabetes (T2D) and newly established cardiovascular disease.

Design, Setting And Participants: Patients with T2D and newly established cardiovascular disease from 1998 to 2016 were identified using Danish healthcare registers and divided into one of four phenotype groups: (1) HF, (2) ischemic heart disease (IHD), (3) transient ischemic stroke (TIA)/ischemic stroke, and (4) peripheral artery disease (PAD).

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Background: Low socioeconomic position may affect initiation of sodium-glucose cotransporter-2 inhibitors (SGLT-2i) and glucacon-like-peptide-1 receptor agonists (GLP-1RA) among patients with type 2 diabetes (T2D). We examined the association between socioeconomic position and initiation of SGLT-2i or GLP-1RA in patients with T2D at time of first intensification of antidiabetic treatment.

Methods: Through nationwide registers, we identified all Danish patients on metformin who initiated second-line add-on therapy between December 10, 2012, and December 31, 2020.

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Background: The prognostic importance of new-onset type 2 diabetes (T2D) in heart failure (HF) remains unknown. We aimed to describe the cardiovascular outcome profile in HF patients with new-onset, no and prevalent T2D.

Methods: We constructed a cohort of patients with first HF admission between 1998 and 2016 from nationwide Danish registers.

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Background: SGLT2 inhibitors are a promising treatment option in patients with heart failure and reduced ejection fraction. We aimed to investigate the effects of empagliflozin on estimated extracellular volume, estimated plasma volume, and measured glomerular filtration rate (GFR) in patients with heart failure and reduced ejection fraction.

Methods: Empire HF Renal was a prespecified substudy of the investigator-initiated, double-blind, randomised, placebo-controlled Empire HF trial.

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Aims: To evaluate the risk of heart failure (HF) in patients with type 2 diabetes (T2D) complicated by development of intercurrent ischaemic heart disease (IHD), end-stage renal disease (ESRD), or both, compared to patients with T2D and no IHD and ESRD.

Methods And Results: From Danish nationwide registries, we identified all patients with new-onset T2D with no history of HF between 1998 and 2015. Landmark analyses were used to estimate the 5-year absolute risk of HF at several follow-up times, and accounted for the occurrence of IHD and ESRD, identified before HF.

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Background: Individuals who suffer from mental illness are more prone to obesity and related co-morbidities, including the metabolic syndrome. Autopsies provide an outstanding platform for the macroscopic, microscopic and molecular-biological investigation of diseases. Autopsy-based findings may assist in the investigation of the metabolic syndrome.

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