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BACKGROUND Pulse wave velocity (PWV) is correlated with cardiovascular risk. This study presents a new method for measuring the arterial PWV by simultaneously recording the digital volume pulse through the finger and the toe by way of dual-channel photoplethysmography (PPG). METHODS In this study, 100 asymptomatic subjects (54 men and 46 women, 19 to 64(More)
Analysis of short-term heart rate variability (HRV) may provide useful information about autonomic nervous control of heart rate recovery. We studied 495 individuals (273 men), age range 19-85 years, submitted to treadmill exercise tests and short-term HRV evaluations over time (standard deviation of the normal-to-normal interval [SDNN], the square root of(More)
BACKGROUND Postprandial hypertriglyceridemia is known to cause endothelial dysfunction and increased oxidative stress. Oral supplements of l-arginine have been found to improve endothelial function. However, the effects of supplements of l-arginine on the influences of postprandial hypertriglyceridemia were not studied before. METHODS Forty young healthy(More)
It is unknown whether there has been any change in the causes of death for acute ST-segment elevation myocardial infarction (STEMI) in the era of aggressive reperfusion. We analyzed the direct causes of in-hospital death in patients with STEMI treated with primary percutaneous coronary intervention (PCI) in a tertiary referral center over the past 10(More)
BACKGROUND Patients with end-stage renal disease on maintenance dialysis therapy have a high prevalence of cardiovascular risk factors and cardiovascular disease (CVD). A similar finding is noted in patients with chronic kidney disease (CKD). The important contributors are premature and accelerated atherosclerosis and vascular calcification. We assessed the(More)
BACKGROUND We hypothesized that contraction of the LA wall could be documented by speckle tracking and could be applied for assessment of LA function. This study tried to identify the association between LA longitudinal strain (LAS) and strain rate (LASR) measured by speckle tracking with paroxysmal atrial fibrillation (PAF). METHODS Fifty-two patients(More)
Premature arteriosclerosis may be one of the mechanisms linking pre-diabetes mellitus (pre-DM) and cardiovascular disease. We sought to characterize premature arteriosclerosis in pre-DM using different arterial stiffness indices and to find the independent contributors of this process. We recruited 33 patients without DM, 53 patients with pre-DM, and 34(More)
UNLABELLED The objective of the present study was to develop a simple clinical model for predicting pulmonary embolism (PE) in patients with acute dyspnea in the emergency room. PATIENTS AND MEASUREMENTS We enrolled 56 patients diagnosed with PE, and 92 consecutive patients without PE, all of whom presented with acute dyspnea in the emergency room.(More)
BACKGROUND Evidence about the efficacy and safety of statin treatment in high-risk patients with hypercholesterolemia is available for some populations, but not for ethnic Chinese. To test the hypothesis that treatment with pitavastatin (2 mg/day) is not inferior to treatment with atorvastatin (10 mg/day) for reducing low-density lipoprotein cholesterol(More)