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Results 101 - 150 of 515
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Todorova Margarita G - - 2006
PURPOSE: This study was performed in an attempt to gain more information on whether the 30 Hz-flicker mfERG indeed provides a sensitive measure of dysfunction in patients with primary open-angle glaucoma (POAG) as has been suggested previously. METHODS: Eighteen POAG patients with visual field defects (MD > 2.2 dB) and ...
Peteiro Jesús C - - 2006
BACKGROUND: Although exercise echocardiography (EE) has value for the diagnosis of coronary artery disease (CAD), it's not clear whether it may be useful for risk assessment in all categories of patients. To determine whether: 1) there is an incremental value of EE over clinical, exercise and resting echocardiographic variables for ...
Ochoa Anthony B - - 2006
This study analyzed the acute effects of enhanced external counterpulsation (EECP) on oxygen uptake (VO2) at rest in adults with symptomatic coronary artery disease (CAD) compared with healthy volunteers. EECP therapy increases exercise tolerance in patients with refractory angina pectoris. This may be attributed, at least in part, to a ...
Defoor, Johan
Exercise performance, expressed as peak oxygen uptake (VO2) or aerobic power, is an independent prognostic factor in cardiovascular disease. An increase in aerobic power can be achieved through regular physical exercise. Larger increases are, furthermore, associated with greater decreases in cardiovascular mortality. Understanding the determinants of aerobic power and of ...
Diercks Deborah B - - 2006
BACKGROUND: Studies have shown that the addition of right precordial and left posterior leads to the standard 12-lead electrocardiogram (ECG) can significantly improve the sensitivity of exercise treadmill testing (ETT) for the diagnosis of myocardial ischemia. OBJECTIVE: The objective of this study was to determine the value of adding 2 ...
Martin R Shayn - - 2006
BACKGROUND: Resuscitation regimens based on stroke work index (SWI) and ventricular-arterial coupling (VAC) are controversial. The Signal Interpretation and Monitoring (SIMON) system continuously collects and stores physiologic intensive care unit (ICU) bedside data at 3- to 5-second intervals. The purpose of this study was to demonstrate the capabilities of a ...
Hirano Yutaka - - 2006
BACKGROUND: Exercise echocardiography is an effective means of noninvasively detecting coronary artery disease (CAD), and hand-carried cardiac ultrasound (HCU) devices are now being used to diagnose CAD in emergency rooms and at bedsides. OBJECTIVE: To compare the efficacies of exercise echocardiography with an HCU device (EchoCG-HCU) and exercise electrocardiography (ECG) ...
Rivero Abel - - 2006
BACKGROUND: Transient ischemic dilation (TID) has been established as an important independent marker of severe and extensive coronary artery disease (CAD) in myocardial perfusion imaging (MPI). The accuracy of the TID index is dependent on a well-determined threshold (normal limits) between normal and abnormal values for each study protocol. To ...
Fortune Brad - - 2006
PURPOSE: To assess the repeatability of the multifocal visual evoked potential (mfVEP) and to compare it with the repeatability of standard automated perimetry (SAP) in the same group of 50 normal controls retested after 1 year. Our second aim was to assess the repeatability of false alarm rates determined previously ...
Goyal Deepak - - 2007
Heart rate recovery following a Bruce exercise protocol provides prognostic information on survival. We investigated the impact of ethnicity on HRR in 271 consecutive patients being assessed for CAD in three main ethnic groups (Caucasian (C); South Asian (SA); Afro-Caribbean (AC)). Our sample contained greater referral of younger, male South ...
Birmingham D J - - 2006
Erythrocyte complement receptor type one (E-CR1) is thought to protect against immune complex (IC) disease through interactions that lead to E-CR1 consumption, and low E-CR1 levels are characteristic of systemic lupus erythematosus (SLE). The purpose of this study was to test the hypothesis that E-CR1 consumption can predict or mark ...
Apperloo Joke J - - 2006
BACKGROUND: The laboratory analysis of cerebrospinal fluid (CSF) plays a key role in considering subarachnoid haemorrhage (SAH) in patients with clinical suspicion, but negative CT scan. Although the determination of the CSF bilirubin concentration generally provides high sensitivity, it was recently shown that specificity and positive predictive value are unacceptably ...
Christ-Crain Mirjam - - 2006
INTRODUCTION: Pro-adrenomedullin (proADM) is helpful for individual risk assessment and outcome prediction in sepsis. A major cause of sepsis is community-acquired pneumonia (CAP). The aim of this study was to investigate the value of proADM levels for severity assessment and outcome prediction in CAP. METHODS: Data from 302 patients admitted ...
Linke Axel - - 2006
Coronary vasorelaxation depends on nitric oxide (NO) bioavailability, which is a function of endothelial nitric oxide synthase-derived NO production and NO inactivation by reactive oxygen species. This fine-tuned balance is disrupted in coronary artery disease (CAD). The impairment of NO production in conjunction with excessive oxidative stress promotes the loss ...
Yilmaz Remzi - - 2006
BACKGROUND: Although prolongation of the QT intervals in acute ischemic conditions, such as acute myocardial infarction, intracoronary balloon inflation, and exercise induced ischemia, has been shown, association of rest QT intervals with extent and severity of stable coronary artery disease (CAD) has not been assessed so far. The effects of ...
Kharabsheh Suleiman M - - 2006
Exercise stress testing is a non-invasive, safe and affordable screening test for coronary artery disease (CAD), provided there is careful patient selection for better predictive value. Patients at moderate risk for CAD are best served with this kind of screening, with the exception of females during their reproductive period, when ...
Kleinstreuer Clement - - 2006
Ruptured abdominal aortic aneurysms (AAAs) are the 13th leading cause of death in the United States. While AAA rupture may occur without significant warning, its risk assessment is generally based on critical values of the maximum AAA diameter (> 5 cm) and AAA-growth rate (> 0.5 cm/year). These criteria may ...
Rahimi Kazem - - 2005
BACKGROUND: There is growing evidence for the association between physical activity and systemic inflammatory markers in healthy individuals and populations with a low prevalence of coronary artery disease (CAD). However, the association between fitness and CRP in patients with stable CAD treated with medications known to influence the inflammatory response, ...
Chan Henry Ho-Lung - - 2005
The first-order kernel analysis in multifocal electroretinogram (mfERG) using low contrast stimulation is suggested as a way to detect the inner retinal responses in animal studies. In this case report, this protocol is applied to human patients with glaucoma to demonstrate the possibility of using mfERG as a tool to ...
Tonelli Marcello - - 2005
BACKGROUND: Most large studies evaluating the diagnostic properties of access blood flow (Qa) in arteriovenous (AV) accesses have used the Transonic HD01 (Transonic Systems Inc, Ithaca, NY) device, and recommended thresholds for angiography are based on data from these studies. There has been little exploration of how the use of ...
Abuissa Hussam - - 2005
BACKGROUND: Metabolic syndrome (MetSyn) has reached epidemic proportions; however, regular exercise can prevent its progression to type 2 diabetes. HYPOTHESIS: The study was undertaken to determine both the rate and predictors of routine exercise 1 year after an acute coronary syndrome (ACS) in patients with MetSyn. METHODS: In a registry ...
Patterson Dean - - 2005
To investigate the effect of tadalafil on the time to exercise-induced myocardial ischaemia in subjects with coronary artery disease (CAD). Background CAD and erectile dysfunction (ED) share similar risk factors. It is important to know the cardiovascular effects of tadalafil in patients with CAD during physical exertion that is comparable ...
Millslagle Duane - - 2005
As research is limited the purpose of this study was to investigate dynamic visual acuity while cycling at different exercise loads. Accuracy of dynamic visual acuity scores of 20 college-age participants was analyzed by a repeated-measures analysis of variance which indicated improved dynamic visual acuity during cycling as the intensity ...
le Bris Stéphanie - - 2006
BACKGROUND: The aim of this study was to apply a systems model of training for athletes in patients with coronary artery disease (CAD) undergoing phase 2 cardiac rehabilitation. METHODS: Data from six patients with CAD undergoing 20 conventional training sessions were used to test this model. The method required daily ...
Sharma Rajan - - 2005
BACKGROUND: After renal transplantation half of all deaths are cardiac, so prior detection and treatment of severe coronary artery disease (CAD) is advocated. The aim of this study was to identify non-invasive predictors of severe CAD in a group of renal transplant candidates. METHODS: One hundred and twenty-five renal transplant ...
Kumar Shekar P - - 2005
BACKGROUND: An increased lung to heart ratio (LHR) on thallium-201 (Tl-201) stress myocardial perfusion imaging (MPI) is a predictor of adverse cardiac events and identifies people with extensive coronary artery disease (CAD). The implications of increased LHR in patients undergoing stress technetium-99m (tc-99m) sestamibi are developing. Our aim is to ...
Conti Alberto - - 2005
OBJECTIVES: The aim of the study was to compare head-to-head the performance of exercise tolerance test-stress echocardiography (ex-Echo) and exercise stress-perfusion nuclear imaging (exercise-single-photon emission computed tomography [ex-SPECT]) for the diagnosis of coronary artery disease (CAD) in patients evaluated at the chest pain unit with delay from chest pain (CP) ...
Turkmen Muhsin - - 2005
Myocardial bridging (MB) of coronary arteries has been considered as an incidental angio-graphic finding; however, several reports suggest its association with angina pectoris, myocardial ischemia, and even infarction. In this study the authors aimed to assess exercise-induced QRS changes in patients with isolated MB and to compare those with coronary ...
Kurita Akira - - 2005
Vascular tone is regulated by vasodilators and vasoconstrictors. Endothelin-1 (ET-1) is the predominant vasoconstrictor peptide that constricts vascular smooth muscle, whereas nitric oxide (NO) is the primary vasodilator peptide that relaxes vascular smooth muscle. In this study, the authors examined whether NO/ET-1 ratio is a useful marker for detecting coronary ...
Goldhammer Ehud - - 2005
BACKGROUND: Physical activity may lower the risk for coronary artery disease (CAD) by mitigating inflammation, which plays a key role in the pathophysiology of atherosclerosis. The purpose of this study was to determine the effect of aerobic exercise training on levels of pro- and anti-inflammatory cytokines, IL-1, IL-6, IL-10, INF-gamma, ...
Noguchi Yoshinori - - 2005
BACKGROUND: The relative performance of alternative stressors for stress echocardiography for the diagnosis of coronary artery disease (CAD) is not well established. METHODS: All studies published between 1981 to December 2001 who met inclusion criteria were included in this analysis. We performed a summary receiver operator characteristic (SROC) analysis and ...
Sargin Haluk - - 2005
Cardiovascular disease (CVD) is the major cause of death in patients with type 2 diabetes mellitus. However, the diagnosis of CVD is delayed due to concealment of antecedent symptoms by factors such as autonomic neuropathy. In this study, we aimed to investigate the frequency of silent ischemia by using exercise ...
Woods Bryan T - - 2005
BACKGROUND: Whole brain volume (BV) is significantly reduced in groups of schizophrenic patients, but there is disagreement as to when in relation to onset of illness these losses occur. Given what is known about the normal development and lifetime course of BV, intraventricular volume (IVV), extracerebral volume (ECV), and intracranial ...
Lewis Jannet F - - 2005
BACKGROUND: Exercise testing, a major diagnostic modality in individuals with suspected coronary artery disease (CAD), has in general demonstrated less overall diagnostic accuracy in women compared to men. As part of the WISE, a modified protocol was examined with the intention of improving reliability of exercise testing. METHODS: Criteria for ...
Steiner Sabine - - 2005
OBJECTIVE: As regular physical exercise improves endothelial dysfunction and promotes cardiovascular health, we investigated the effect of training on angiogenesis by measuring the number of circulating endothelial progenitor cells (EPC), the level of EPC-mobilizing growth factors and tested vascular function by flow-mediated dilation (FMD) in patients with coronary artery disease ...
Marashi R - - 2005
AIM: To set up a reliable automated method of allowing to identify the ES1 and ES2 periods of exteroceptive suppression of the temporal muscle (EST), thereby reducing their intra- and inter-individual variability. MATERIALS AND METHODS: Analyses were performed in 79 healthy subjects with strict inclusion and exclusion criteria. Each individual ...
Jagathesan Rohan R Medical Research Council Clinical Sciences Centre, Imperial College, London W12 N00, - - 2005
Although physical exercise is the preferred stimulus for cardiac stress testing, pharmacologic agents are useful in patients who are unable to exercise. Previous studies have demonstrated short-term repeatability of exercise and adenosine stress, but little data exist regarding dobutamine (Dob) stress or the long-term reproducibility of pharmacologic stressors in coronary ...
Najjar Samer S - - 2005
BACKGROUND: Conventional strategies to treat myocardial ischemia include interventions that reduce oxygen demand and/or increase myocardial blood flow. Animal experiments suggest that right-shifting the hemoglobin-oxygen dissociation curve may also attenuate the metabolic consequences of myocardial ischemia. We evaluated whether exercise-induced myocardial ischemia can be alleviated in subjects with coronary artery ...
Semenyutin V B - - 2005
The purpose of this study was to evaluate dynamics of B-waves' amplitudes (BWA) of blood flow velocity (BFV) in patients with cerebrovascular diseases during endovascular operations. We examined 12 patients with neurovascular pathology during neuroendovascular interventions. Patients were divided into two groups: 1st group (6 cases)--without intraoperative neurological complications, 2nd ...
Fukui Masayoshi - - 2005
BACKGROUND: We evaluated usefulness of the postexercise systolic blood pressure (SBP) response for detecting coronary artery disease (CAD) in hemodialysis patients. METHODS: A treadmill exercise testing was done, and the SBP response was measured in 44 hemodialysis patients (30 men, 14 women; age 41 to 81 years). The postexercise SBP ...
Ravi N - - 2005
The most common type of esophageal dysfunction associated with chest pain is gastroesophageal reflux, which may be induced by exercise. The effect of exercise on esophageal function has mainly been investigated in normal subjects or trained athletes. Few studies have investigated exercise and esophageal motility disorders. One hundred and thirty-five ...
Scherhag A A I. Medical Clinic, University Hospital Mannheim, Faculty of Clinical Medicine Mannheim, University of Heidelberg, Mannheim, Germany. - - 2005
Automated impedance cardiography (ICG) is an attractive method for noninvasive hemodynamic evaluation. The objective of our study was to evaluate the feasibility and diagnostic value automated ICG in patients with suspected coronary artery disease (CAD). We measured stroke index (SI) and cardiac index (CI) in 65 patients with suspected CAD ...
Hayashino Yasuaki - - 2004
Screening for coronary artery disease (CAD) in asymptomatic diabetic patients with two additional atherogenic risk factors has been recommended by the American College of Cardiology/American Diabetes Association, but its cost-effectiveness is yet to be determined. The present study aims to evaluate the cost-effectiveness of screening and determine acceptable strategies. Cost-effectiveness ...
Altinok M Tayfun - - 2004
OBJECTIVE: Dynamic carpal tunnel syndrome (CTS) is a subtype of CTS in which symptoms usually subside with rest and return with repetitive motions. In this subgroup, nerve conduction studies, performed at rest, are often inconclusive. In this study, the diagnostic value of provocative sonography was evaluated in patients with dynamic ...
Cholewinski W - - 2004
AIM: It has been shown that exercise may lead to the myocardial stunning with reduction of LVEF, persisting for some time despite recovery of perfusion. The aim of this study was to check whether the post-stress decrease of LVEF lasts as long as 3 h after exercise. PATIENTS, METHODS: The ...
Lavoie Kim L - - 2004
BACKGROUND: Major depressive disorder (MDD) disproportionately affects patients with coronary artery disease (CAD). Evidence of myocardial ischemia with electrocardiography (ECG) or single-photon-emission-computed-tomography (SPECT) assessments during exercise testing is an important determinant of CAD prognosis. However, many key symptoms of MDD, such as reduced interest in daily activities, lack of energy, ...
Elhendy Abdou - - 2004
The role of stress echocardiography in the prognostic evaluation of patients with angina pectoris is not well defined. This study included 437 patients (241 men and 196 women) with angina pectoris and a pretest probability of coronary artery disease (CAD) of > or = 0.7 who were referred for exercise ...
Gayda Mathieu - - 2004
OBJECTIVES: To measure the cardiorespiratory requirements of the six-minute walk test (6MWT), to compare this demand with the symptom-limited exercise test (SLET) at ventilatory threshold and at maximal level in elderly patients with coronary artery disease (CAD), and to assess the reproducibility of the 6MWT in cardiorespiratory exchanges in those ...
Le Bris Stephanie - - 2004
PURPOSE: The aim of the present study was to apply a systems model of training for athletes to a patient with coronary artery disease (CAD) undergoing phase 3 rehabilitation. METHODS: A patient with CAD underwent 14 wk of training during which exercise was quantified using intensity and duration. Real exercise ...
Zafrir Nili - - 2004
BACKGROUND: Several studies have shown that strenuous exercise induces changes in the immune system. Soluble interleukin-2 receptor (sIL-2R) is a marker of immune system activation and is known to increase in association with cardiac disease. The aim of the present study was to assess sIL-2R levels in patients with coronary ...
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