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Comparison of carbon dioxide control during pressure controlled versus pressure-regulated volume controlled ventilation in children (CoCO2): protocol for a pilot digital randomised controlled trial in a quaternary paediatric intensive care unit.
BMJ Open
January 2025
Department of Intensive Care and Neonatology and Children's Research Center, University of Zurich, University Children's Hospital Zürich, Zurich, Zurich, Switzerland.
Introduction: Digital trials are a promising strategy to increase the evidence base for common interventions and may convey considerable efficiency benefits in trial conduct. Although paediatric intensive care units (PICUs) are rich in routine electronic data, highly pragmatic digital trials in this field remain scarce. There are unmet evidence needs for optimal mechanical ventilation modes in paediatric intensive care.
View Article and Find Full Text PDFHypoxia Regulates Brown Adipocyte Differentiation and Stimulates miR-210 by HIF-1α.
Int J Mol Sci
December 2024
Institute for Cardiovascular Prevention (IPEK), Faculty of Medicine, Ludwig-Maximilians-Universität München, 81377 Munich, Germany.
MicroRNAs (miRNAs) are short sequences of single-stranded non-coding RNAs that target messenger RNAs, leading to their repression or decay. Interestingly, miRNAs play a role in the cellular response to low oxygen levels, known as hypoxia, which is associated with reactive oxygen species and oxidative stress. However, the physiological implications of hypoxia-induced miRNAs ("hypoxamiRs") remain largely unclear.
View Article and Find Full Text PDFAnalysis of the risk factors of delayed extubation after surgery for Ebstein's anomaly.
J Cardiothorac Surg
January 2025
Department of ICU in Pediatric Cardiology, Beijing An Zhen Hospital, Capital Medical University, Beijing, 100029, China.
Objective: In this study, we aimed to screen the risk factors for delayed extubation after surgery for Ebstein's anomaly (EA), determine the diagnostic cut-off values, and develop a prediction equation to accurately encourage rapid recovery after surgery.
Methods: The perioperative data of 76 pediatric patients undergoing EA surgery in the Surgical Department of the Pediatric Heart Center of Anzhen Hospital from September 2013 to September 2021 were retrospectively analyzed.
Results: Among these cases, 37 (48.
Reduced contrast agent volume using a heart-rate dependent and free-breathing scanning protocol in coronary computed tomography angiography (CTA) for patients with chronic obstructive pulmonary disease (COPD).
BMC Cardiovasc Disord
January 2025
Department of Radiology, Central Hospital Affiliated to Shandong First Medical University, Jinan City, Shandong Province, China.
Background: The personalized, free-breathing, heart rate-dependent computed tomography angiography (CTA) protocol can significantly reduce the utilization of contrast medium (CM). This proves especially beneficial for patients with chronic obstructive pulmonary disease (COPD) undergoing coronary artery CTA examinations.
Objective: The aim of this study was to evaluate the feasibility of a personalized CT scanning protocol that was tailored to patients' heart rate and free-breathing for coronary CTA of patients with COPD.
Sex-dependent adaptations in heart mitochondria from transgenic mice overexpressing cytochrome b reductase-3.
Mitochondrion
January 2025
Departamento de Biología Celular Fisiología e Inmunología Universidad de Córdoba Campus de Excelencia Internacional Agroalimentario ceiA3 Córdoba Spain. Electronic address:
Cytochrome b reductase 3 (CYB5R3) overexpression upregulates mitochondrial biogenesis, function, and abundance in skeletal muscle and kidneys, and mimics some of the salutary effects of calorie restriction, with the most striking effects being observed in females. We aimed to investigate the mitochondrial adaptations prompted by CYB5R3 overexpression in the heart, an organ surprisingly overlooked in studies focused on this long-lived transgenic model despite the critical role played by CYB5R3 in supporting cardiomyocytes mitochondrial respiration. Given that CYB5R3 effects have been found to be sex-dependent, we focused our research on both males and females.
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