QT Corrections for Long QT Risk Assessment: Implications for the Preparticipation Examination

Conclusion: Our results support the application of the Fridericia-corrected threshold of 460 for men and 470 milliseconds for women (and 485 milliseconds for marked prolongation) rather than Bazett correction for the preparticipation examination.
Source: Clinical Journal of Sport Medicine - Category: Sports Medicine Tags: Original Research Source Type: research

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ConclusionsOur findings indicate that Arnebiae Radix treatment can attenuate Ach-CaCl2-induced atrial injury and serve as an effective therapeutic strategy for the treatment of AF in the future.Graphical abstract
Source: Journal of Ethnopharmacology - Category: Drugs & Pharmacology Source Type: research
This study evaluated whether prehospital 12-lead electrocardiogram (ECG) could shorten system delay in STEMI management. METHODS: From November 2015 to November 2017, 15 ambulances equipped with X Series Monitor/ Defibrillator (Zoll Medical Corporation) were used in the catchment area of Queen Mary Hospital, Hong Kong. Prehospital ECG was performed for patients with chest pain; the data were tele-transmitted to attending emergency physicians at the Accident and Emergency Department (AED) for rapid assessment. Data from patients with STEMI who were transported by these 15 ambulances were compared with data from patients...
Source: Hong Kong Medical Journal - Category: General Medicine Tags: Hong Kong Med J Source Type: research
Conclusions: Tbx3 dose reduction results in deregulation of a large number of genes affecting the electrical properties of the atrioventricular node and causes failure to maintain the structural integrity of the atrioventricular bundle. These data provide a mechanism underlying differences in PR interval and QRS duration in individuals carrying associated variants in the TBX3 locus.
Source: GEO: Gene Expression Omnibus - Category: Genetics & Stem Cells Tags: Genome binding/occupancy profiling by high throughput sequencing Mus musculus Source Type: research
Conclusions: Tbx3 dose reduction results in deregulation of a large number of genes affecting the electrical properties of the atrioventricular node and causes failure to maintain the structural integrity of the atrioventricular bundle. These data provide a mechanism underlying differences in PR interval and QRS duration in individuals carrying associated variants in the TBX3 locus.
Source: GEO: Gene Expression Omnibus - Category: Genetics & Stem Cells Tags: Expression profiling by high throughput sequencing Mus musculus Source Type: research
AbstractBackgroundMetabolic syndrome (MS) has attracted much attention worldwide for its harmful effects. Although the Cornell product (CP) and Sokolow-Lyon (SL) voltage are independent and strong risk factors of cardiovascular disease, their associations with MS and the relative strength of these associations are unknown. Therefore, we studied these aspects in a community of middle-aged people.MethodsA total of 1112 community residents aged 40 –65 years, among which 169 had IDF (2005)–defined MS (MS group) and 943 did not have MS (NMS group), underwent electrocardiography (ECG) at baseline. A questionnair...
Source: International Journal of Diabetes in Developing Countries - Category: Endocrinology Source Type: research
Coronary artery bypass graft (CABG) surgery may lead to postoperative complications such as the acute kidney dysfunction (AKD), identified as any post-intervention increase of serum creatinine level. Cardiovascular control reflexes like the baroreflex can play a role in the AKD development. The aim of this study is to test whether baroreflex sensitivity (BRS) estimates derived from non-causal and causal approaches applied to spontaneous systolic arterial pressure (SAP) and heart period (HP) fluctuations can help in identifying subjects at risk of developing AKD after CABG and which BRS estimates provide the best performanc...
Source: Frontiers in Physiology - Category: Physiology Source Type: research
Conditions:   Hypertrophic Cardiomyopathy;   Endothelial Dysfunction Interventions:   Biological: BNP blood sample test;   Diagnostic Test: Electrocardiogram;   Diagnostic Test: Holter ECG;   Diagnostic Test: Echocardiography;   Diagnostic Test: Air venous plethysmography;   Diagnostic Test: Upper member arterial Doppler echography with analysis of FMD;   Bio logical: Endothelial function biomarkers Sponsors:   University Hospital, Bordeaux;   Fédé...
Source: ClinicalTrials.gov - Category: Research Source Type: clinical trials
AbstractIn pulmonary angiography, the heartbeat creates artifacts that hinder extraction of blood vessel images in digital subtraction angiography. Remasking according to the cardiac phase of the angiogram may be effective but has yet to be automated. Here, automatic remasking was developed and assessed according to the cardiac phase from electrocardiographic information collected simultaneously with imaging. Manual remasking, fixed remasking, and our proposed automatic remasking were applied to 14 pulmonary angiography series from five participants with either chronic thromboembolic pulmonary hypertension or pulmonary art...
Source: Journal of Digital Imaging - Category: Radiology Source Type: research
AbstractThe History, Electrocardiogram, Age, Risk Factors, Troponin (HEART) score is a useful tool in the Emergency Department setting to identify those patients safe for outpatient evaluation of chest pain. Its utility for predicting cardiac interventions is unclear. Our objective was to evaluate the prognostic accuracy of the HEART score to predict the need for cardiac stent or coronary artery bypass grafting (CABG). We conducted a retrospective chart review of 625 consecutive subjects with chest pain presenting to an Emergency Department (ED) with a HEART pathway protocol in place. We also reviewed each subject ’s...
Source: Internal and Emergency Medicine - Category: Emergency Medicine Source Type: research
Authors: Yelgeç NS, Karataş MB, Karabay CY, Çanga Y, Şimşek B, Çalık AN, Emre A Abstract Background: Lead aVR provides prognostic information in various settings for patients with cardiovascular diseases. The present study aimed to investigate the prognostic value of a positive T wave in lead aVR (TaVR) for patients with acute pulmonary embolism (APE). Methods: We screened a total of 412 consecutive patients who were hospitalised with a diagnosis of APE between 2008 and 2018. We investigated electrocardiograms (ECGs) for the presence of a positive TaVR and classified other abnormal ECG find...
Source: Acta Cardiologica - Category: Cardiology Tags: Acta Cardiol Source Type: research
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