Late potentials are depolarizations which arise from areas of delayed ventricular activation and may indicate a propensity for ventricular tachycardia. Sixty-four subjects were assessed by non-invasive measurement. Late potentials were not present in 20 subjects with normal hearts nor in 6 patients with cardiac disease but with no evidence of ventricular tachycardia (VT). Seventeen of 20 patients with recurrent sustained ventricular tachycardia (RSVT) and 2 of 10 patients with unsustained VT had late potentials. None of the 6 patients with automatic VT or the 2 patients with torsades de pointe had late potentials. In a subgroup of 28 symptomatic patients in whom programmed ventricular stimulation was performed, late potentials correlated with inducibility of sustained VT (P less than 0.05). Late potentials may therefore serve as a useful marker of RSVT and confirm a re-entrant mechanism of VT.
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iScience
January 2025
Department of Vascular Surgery, Lausanne University Hospital (CHUV), Lausanne, Switzerland.
Aging is accompanied by a decline in neovascularization potential and increased susceptibility to ischemic injury. Here, we confirm the age-related impaired neovascularization following ischemic leg injury and impaired angiogenesis. The age-related deficits in angiogenesis arose primarily from diminished EC proliferation capacity, but not migration or VEGF sensitivity.
View Article and Find Full Text PDFOpen Res Eur
December 2024
Geosciences, Universitetet i Oslo Institutt for geofag, Oslo, Oslo, 0371, Norway.
Background: Despite extensive studies of the Mesozoic-Cenozoic magmatic history of Svalbard, little has been done on the Paleozoic magmatism due to fewer available outcrops.
Methods: 2D seismic reflection data were used to study magmatic intrusions in the subsurface of eastern Svalbard.
Results: This work presents seismic evidence for west-dipping, Middle Devonian-Mississippian sills in eastern Spitsbergen, Svalbard.
J Inflamm Res
January 2025
Precision Medicine Laboratory, School of Medical Technology and Engineering, Henan University of Science and Technology, Luoyang, People's Republic of China.
Ovarian cancer (OC) remains one of the most lethal gynecological malignancies, largely due to its late-stage diagnosis and high recurrence rates. Chronic inflammation is a critical driver of OC progression, contributing to immune evasion, tumor growth, and metastasis. Inflammatory cytokines, including IL-6, TNF-α, and IL-8, as well as key signaling pathways such as nuclear factor kappa B (NF-kB) and signal transducer and activator of transcription 3 (STAT3), are upregulated in OC, promoting a tumor-promoting environment.
View Article and Find Full Text PDFBackground And Aims: Even though aging is a known risk factor for prostate cancer incidence and mortality, there has been an increase in incidence among young men since the late 1980s with notably lower survival rates than those among older men. However, there is insufficient knowledge about recent trends in the incidence and survival of this disease.
Methods: We analyzed prostatic cancer incidence trends in men under 50 from 1975 to 2020 using Surveillance, Epidemiology, and End Results (SEER) 8 registries data.
Front Pediatr
January 2025
Heart Center, Women and Children's Hospital, Qingdao University, Qingdao, China.
Background: This study aimed to assess right ventricular (RV) endocardial fibroelastosis (EFE) in fetuses with critical pulmonary stenosis (CPS) and pulmonary atresia with intact ventricular septum (PA-IVS) and to investigate the implications of RV EFE for circulatory outcomes.
Methods: Fetal echocardiographic data from July 2018 to January 2021 were collected. Three reviewers independently graded EFE based on the presence and extent of endocardial echogenicity.
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