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http://dx.doi.org/10.1161/CIRCIMAGING.115.004104 | DOI Listing |
Pacing Clin Electrophysiol
December 2024
Arrhythmia Unit, Department of Cardiology, Hospital Juan Ramón Jiménez, Huelva, Spain.
Background: Interventricular dyssynchrony derived from the classic non-physiological stimulation (n-PS) of the right ventricle (RV) is a known cause of left ventricular dysfunction (LVDys).
Methods: This was a prospective descriptive single-center study. We analyzed patients who develop LVDys with n-PS, and the results after upgrading to conduction system pacing (CSP).
Acta Biochim Biophys Sin (Shanghai)
December 2024
Fibrosis is the main pathological feature of aortic stiffness, which is a common extracardiac comorbidity of heart failure with preserved ejection fraction (HFpEF) and a contributor to left ventricular (LV) diastolic dysfunction. Systemic low-grade inflammation plays a crucial role in the pathogenesis of HFpEF and the development of vascular fibrosis. In this study, we investigate the inflammatory mechanism of aortic fibrosis in HFpEF using a novel mouse model.
View Article and Find Full Text PDFBMC Cardiovasc Disord
December 2024
Department of Cardiovascular Medicine, Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, People's Republic of China.
Backgrounds: Due to the high mortality and hospitalization rate in chronic heart failure (HF), it is of great significance to study myocardial nutrition conditions. Amino acids (AAs) are essential nutrient metabolites for cell development and survival. This study aims to investigate the associations and prognostic value of plasma branched-chain amino acid/aromatic amino acid ratio (Fischer's ratio, FR) in patients with left ventricular ejection fraction (LVEF) ≤ 50%.
View Article and Find Full Text PDFPediatr Cardiol
December 2024
The Department of Ultrasound, Tianyou Hospital of Shanghai, No 528, Zhennan Road, Putuo District, Shanghai, 200331, China.
Persistent myocardial impairment proved by histopathologic studies universally existed in patients with Kawasaki disease (KD); however, the long-term effects on myocardial contractile reserve in KD patients, especially on patients without coronary artery lesions (CALs), is still unknown. The aim of this study was to investigate myocardial contractile reserve in KD patients during late convalescent stage by speckle-tracking adenosine triphosphate (AT) echocardiography. A total of 63 antecedent KD patients at least 4 years after the disease onset and 40 age- and gender-matched normal controls were prospectively enrolled.
View Article and Find Full Text PDFSci Rep
December 2024
Division of Cardiology, Department of Medicine, Heart Vascular Stroke Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
Sodium-glucose cotransporter 2 (SGLT-2) inhibitors are the only medications that improve clinical outcomes regardless of baseline left ventricular ejection fraction. Despite the recognized effectiveness of SGLT-2 inhibitors, there remains a paucity of research on the discontinuation of these medications. The objective of this study is to analyze the rate of discontinuation of SGLT-2 inhibitors, to evaluate the impact of discontinuation on the clinical outcome, and to identify the factors associated with discontinuation.
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