Publications by authors named "Cuthbert J"

To (1) assess the accuracy of the Uscom BP+ oscillometric upper-arm professional blood pressure (BP) monitor in children and adolescents as per the AAMI/ESH/ISO Universal Standard (ISO 81060-2:2018); (2) assess the suitability of a non-standard cuff; and (3) assess the impact of motion artefact on device accuracy and precision. Children and adolescents were recruited to fulfil the sex/cuff distribution criteria of the Universal Standard. Single arm sequential BP measurements were used, the test device measured on deflate with an altered child/adolescent algorithm, using three standard (Extra Small, Small Adult, Adult) and, as exploratory analysis, additionally in one non-standard cuff (Wide Range; WR) (arm circumferences: 12-17, 16-24, 22-32, 22-42 cm, respectively).

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Article Synopsis
  • The study investigated the effects of spironolactone on blood pressure (BP) during exercise in heart failure (HF) patients, finding that it significantly reduced both pre- and post-exercise BP levels over 9 months.
  • While spironolactone showed a small improvement in the number of completed shuttles during exercise tests, there was no significant difference in overall exercise capacity or quality of life (QoL) between the spironolactone group and the control group.
  • The results suggest that while spironolactone can lower BP in patients at increased risk of HF, it does not enhance their ability to exercise or improve their overall well-being.
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Aims: Few randomized trials assessed the changes over time in the chronotropic heart rate (HR) reactivity (CHR), HR recovery (HRR) and exercise endurance (EE) in response to the incremental shuttle walk test (ISWT). We addressed this issue by analysing the open HOMAGE (Heart OMics in Aging) trial.

Methods: In HOMAGE, 527 patients prone to heart failure were randomized to usual treatment with or without spironolactone (25-50 mg/day).

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Aims: Understanding the pattern of disease progression in chronic heart failure (HF) may inform patient care and healthcare system design. We used a four-state Markov model to describe the disease trajectory of patients with HF.

Methods And Results: Consecutive patients (n = 4918) were enrolled (median age 75 [67-81] years, 61.

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Objective: Heart failure (HF) is characterised by collagen deposition. Urinary proteomic profiling (UPP) followed by peptide sequencing identifies parental proteins, for over 70% derived from collagens. This study aimed to refine understanding of the antifibrotic action of spironolactone.

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Background: Loop diuretics are commonly prescribed in the community, not always to patients with a recorded diagnosis of heart failure (HF). The rate of HF events in patients prescribed loop diuretics without a diagnosis of HF is unknown.

Methods: This was a propensity-matched cohort study using data from the Clinical Practice Research Datalink, Hospital Episode Statistics and Office of National Statistics in the UK.

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Purpose Of Review: Fluid retention or congestion is a major cause of symptoms, poor quality of life, and adverse outcome in patients with heart failure (HF). Despite advances in disease-modifying therapy, the mainstay of treatment for congestion-loop diuretics-has remained largely unchanged for 50 years. In these two articles (part I: loop diuretics and part II: combination therapy), we will review the history of diuretic treatment and the current trial evidence for different diuretic strategies and explore potential future directions of research.

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Aims: Approximately half of patients with heart failure and a reduced ejection fraction (HeFREF) are discharged from hospital on triple therapy [angiotensin-converting enzyme inhibitors (ACE-Is) or angiotensin receptor blockers (ARBs), beta-blockers (BBs), and mineralocorticoid receptor antagonists (MRAs)]. We investigated what proportion of patients are on optimal doses prior to discharge and how many might be eligible for initiation of sacubitril-valsartan or sodium-glucose co-transporter-2 inhibitors (SGLT2Is).

Methods And Results: Between 2012 and 2017, 1277 patients admitted with suspected heart failure were enrolled at a single hospital serving a local community around Kingston upon Hull, UK.

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Article Synopsis
  • The study investigates the clinical and proteomic profiles of patients at risk for heart failure, distinguishing between those with and without coronary artery disease (CAD) or prior myocardial infarction (MI).
  • It involved 527 participants and identified distinct protein markers associated with CAD and MI, revealing higher levels of certain proteins like MMP-7 in those with CAD or MI.
  • The use of spironolactone in participants led to changes in these protein levels over 9 months, suggesting that treatment may influence specific biomarkers related to heart failure risk.
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Aim: To explore the frequency, causes, and pattern of hospitalisation for patients with chronic heart failure (HF) in the 12 months preceding death. We also investigated cause of death.

Methods: Patients referred to a secondary care HF clinic were routinely consented for follow-up between 2001 and 2020 and classified into three phenotypes: (i) HF with reduced ejection fraction (HFrEF), (ii) HF with preserved ejection fraction (HFpEF) with plasma N-terminal pro B-type natriuretic peptide (NT-proBNP) 125-399 ng L-1, and (iii) HFpEF with NT-proBNP ≥400 ng L-1.

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Aims: Transferrin saturation (TSAT), a marker of iron deficiency, reflects both serum concentrations of iron (SIC) and transferrin (STC). TSAT is susceptible to changes in each of these biomarkers. Little is known about determinants of STC and its influence on TSAT and mortality in patients with heart failure.

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Aims: A high, Doppler-derived, tricuspid regurgitation velocity (TRV) indicates pulmonary hypertension, which may contribute to right ventricular dysfunction and worsening tricuspid regurgitation leading to systemic venous congestion, reflected by an increase in inferior vena cava (IVC) diameter. We hypothesized that venous congestion rather than pulmonary hypertension would be more strongly associated with prognosis.

Methods And Results: 895 patients with chronic heart failure (CHF) (median (25th and 75th centile) age 75 (67-81) years, 69% men, LVEF 44 (34-55)% and NT-proBNP 1133 (423-2465) pg/ml) were enrolled.

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The majority of beef cattle in the United States often receive at least one anabolic implant resulting in improved growth, feed efficiency, and environmental and economic sustainability. However, the physiological and molecular mechanisms through which anabolic implants increase skeletal muscle growth of beef cattle remain elusive. The objective of this study was to identify transcriptional changes occurring in skeletal muscle of steers receiving anabolic implants containing different steroid hormones.

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Heart failure (HF) and chronic obstructive pulmonary disease (COPD) are common causes of breathlessness which frequently co-exist; one potentially exacerbating the other. Distinguishing between the two can be challenging due to their similar symptomatology and overlapping risk factors, but a timely and correct diagnosis is potentially lifesaving. Modern treatment for HF can substantially improve symptoms and prognosis for many patients and may have beneficial effects for patients with COPD.

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Photoinduced electron/energy transfer (PET)-reversible addition-fragmentation chain transfer polymerization (RAFT) and conventional photoinitiated RAFT were used to synthesize polymer networks. In this study, two different metal catalysts, namely, tris[2-phenylpyridinato-C2,N]iridium(III) (Ir(ppy)) and zinc tetraphenylporphyrin (ZnTPP), were selected to generate two different catalytic pathways, one with Ir(ppy) proceeding through an energy-transfer pathway and one with ZnTPP proceeding through an electron-transfer pathway. These PET-RAFT systems were contrasted against a conventional photoinitated RAFT process.

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Aims: In people at risk of heart failure (HF) enrolled in the Heart 'OMics' in AGEing (HOMAGE) trial, spironolactone reduced circulating markers of collagen synthesis, natriuretic peptides, and blood pressure and improved cardiac structure and function. In the present report, we explored factors associated with dyskalaemia.

Methods And Results: The HOMAGE trial was an open-label study comparing spironolactone (up to 50 mg/day) versus standard care in people at risk for HF.

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Article Synopsis
  • The beef cattle industry can boost efficiency and sustainability through growth promotants and crossbreeding, with over 90% of cattle in the U.S. receiving anabolic implants for muscle growth.
  • A study compared the effects of these implants on Angus and Santa Gertrudis influenced steers, examining skeletal muscle changes post-implantation using biopsies and gene expression analysis.
  • Findings indicated significant differences in mRNA and protein expression related to muscle growth between the breeds, particularly in steers that did not receive implants, highlighting the interaction between breed type and treatment.
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Introduction: Iron deficiency (ID) is common in patients with chronic heart failure (CHF) and is associated with worse symptoms and prognosis regardless of whether anemia is also present. However, randomized controlled trials (RCT) of intravenous (IV) iron in patients with CHF have produced inconsistent results. This review considers the past, present, and future of defining and treating ID in patients with CHF.

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Aims: Risk changes with the progression of disease and the impact of treatment. We developed a dynamic risk stratification Markov chain model using artificial intelligence in patients with chronic heart failure (CHF).

Methods And Results: We described the pattern of behaviour among 7496 consecutive patients assessed for suspected HF.

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