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Olympic distance duathlon and cardiac performance in highly-trained triathletes.
Physiol Rep
December 2024
Department of Cardiology, St George's University Hospitals NHS Foundation Trust, London, UK.
The effects of triathlon exercise on cardiac function are well documented. While Olympic triathlon (swim-bike-run) remains the standard format, increasing concerns about water quality in natural waterways present ongoing challenges for open-water swimming events, highlighting the potential need to consider alternative formats such as duathlon (run-bike-run) in some circumstances. An additional run may increase the overall metabolic and cardiovascular demand compared with the swim in triathlon, leading to reduced future performance.
View Article and Find Full Text PDFAssay precision, 99th percentile reference value and proportion of detected healthy european adults for VIDAS® high-sensitive troponin I.
Pract Lab Med
November 2024
bioMérieux, Department of Research and Development for Immunoassays, Marcy-l'Étoile, France.
Introduction/objectives: Following the IFCC (The International Federation of Clinical Chemistry and Laboratory Medicine) guidelines concerning high-sensitivity cardiac troponin assays, we performed an assessment of the VIDAS® High-Sensitive Troponin I (TNHS) assay. The test was evaluated on its capacity to detect at least 50 % of healthy individuals and checked that the coefficient of variation was less than 10 % at the 99th percentile.
Methods: High-sensitivity performance was assessed by examining the limits of detection, the determination of the 99th percentile value, the evaluated imprecision at said value and the detectable results above limit of detection (LoD) in a cohort of healthy European individuals.
Predictive value of NT-proBNP for major adverse cardiovascular events within a 6-month period in patients with acute coronary syndrome.
Ir J Med Sci
December 2024
Department of Cardiology, Haseki Training and Research Hospital, University of Health Sciences, Istanbul, Türkiye.
Background: The role of NT-proBNP as a cardiac biomarker for predicting short-term major adverse cardiovascular events (MACEs) in acute coronary syndrome (ACS) remains unclear.
Aims: This study investigated the utility of the NT-proBNP level for predicting MACEs within a 6-month period in patients with ACS.
Methods: This prospective study included 241 consecutively enrolled adults with ACS between September 2023 and February 2024.
Clinical Laboratory Validation Study of a High Sensitivity Troponin I Assay on a POCT (Point of Care Testing) Device.
Glob Heart
December 2024
Hospital Israelita Albert Einstein, Laboratório Clínico, São Paulo - SP, Brazil.
Background: In Acute Coronary Syndrome without ST-segment elevation, the use of high-sensitivity troponins in rapid protocols is considered the gold standard for diagnostic exclusion/confirmation, in conjunction with clinical stratification. The biggest concern regarding the techniques for troponin evaluation is the time required between collection and delivery of the result.
Objective: The objective of the present study is the clinical/laboratory validation of a POCT device for TnI.
Preoperative activation of the renin-angiotensin system and myocardial injury in noncardiac surgery: exploratory mechanistic analysis of the SPACE randomised controlled trial.
Br J Anaesth
December 2024
Translational Medicine and Therapeutics, William Harvey Research Institute, Queen Mary University of London, London, UK. Electronic address:
Background: Hypertension therapy in older adults is often suboptimal, in part because of inadequate suppression of the renin-angiotensin-aldosterone system (RAAS). We hypothesised that distinct endotypes of RAAS activation before noncardiac surgery are associated with increased risk of myocardial injury.
Methods: This was a prespecified exploratory analysis of a multicentre randomised controlled trial (ISRCTN17251494) which randomised patients ≥60 yr old undergoing elective noncardiac surgery to either continue or stop RAAS inhibitors (determined by pharmacokinetic profiles).
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