The combination of high-frequency QRS and ST-segment alterations during exercise stress tests enhanced the diagnostic efficacy for coronary artery disease.

Background: High-frequency QRS (HF-QRS) manifests as a novel adjunct electrocardiographic marker with potential utility in coronary artery disease (CAD) detection.

Hypothesis: We hypothesize that HF-QRS analysis may be superior to conventional ST-segment analysis in detecting CAD, and the combination of these two analyses in the exercise stress test may enhance the diagnostic efficacy for CAD.

Methods: The study incorporated a sample of 157 patients (mean age 62   9 years) referred for nonemergent angiography.

Diagnosis and treatment of recurrent syncope in a middle-aged women.

A 50-year-old female patient, presented with repeated syncope for more than 2 years. Prior assessments were conducted at different hospitals, but no definite abnormalities were found. The patient's fear and anxiety about possible future attacks were escalating.

Seasonal variation in diurnal blood pressure pattern.

Aims: To explore the relationship between diurnal blood pressure (BP) pattern and season.

Methods: A total of 6765 eligible patients (average age 57.35 ± 15.

Predictive value of acoustic cardiography for post-PCI early ventricular remodeling in acute myocardial infarction.

Acoustic cardiography is a completely new technology, it has great advantages in the rapid diagnosis of cardiovascular diseases. The purpose of this study was to investigate the clinical value of the fourth heart sound (S4), cardiac systolic dysfunction index (SDI), and the cardiac cycle time-corrected electromechanical activation time (EMATc) in the prediction of post-percutaneous coronary intervention (PCI) early ventricular remodeling (EVR) in patients with acute myocardial infarction (AMI). We recruited 161 patients with AMI of 72-h post-PCI, including 44 EVR patients with left ventricular ejection fraction (LVEF) < 50% and 117 Non-EVR patients (normal left ventricular systolic function group, LVEF ≥ 50%).

Ankyrin-2 genetic variants: A case of Ankyrin-B syndrome.

Inherited cardiac arrhythmias (ICA) have become one of the leading causes of sudden cardiac death in people under 40 years old. Variants in the ankyrin-B or ankyrin-2 genes will result in several cardiac arrhythmias ranging from sinus node dysfunction to life-threatening arrhythmias. In this case study, we report a typical ankyrin-2 variant, in which ventricular tachyarrhythmias might be reproduced through exercise or stress tests.

Anti-inflammatory effects of neferine on LPS-induced human endothelium MAPK, and NF-κβ pathways.

This study aimed to evaluate the anti-inflammatory mechanism of neferine, a bisbenzylisoquinoline alkaloid, on the lipopolysaccharide (LPS)-induced inflammation in Human Umbilical Endothelial Cells (HUVECs) and pulmonary aorta cells. Production of pro-inflammatory cytokines and nitric oxide (NO) was determined using Griess reaction in human endothelial cells. The levels of inducible nitric oxide synthase (iNOS), cyclooxygenase-2 (COX-2), and mitogen-activated protein kinases (MAPKs) were analyzed using real time PCR and western blotting.