Search results for "Cardiology"

Dual channel photoplethysmography studies of cardio-vascular response to the body position changes

2005

The dual-channel photoplethysmography studies of physiological responses during 3-stage orthostatic test were performed. Clear differences in heartbeat rate, pulse wave transit time and blood pressure variations of healthy volunteers and diabetic patients have been observed.

Cancer antigen-125 and risk of atrial fibrillation: a systematic review and meta-analysis

2017

WOS: 000458034100002

Tomographic left ventricular volume determination in the presence of aneurysm by three-dimensional echocardiographic imaging. I: Asymmetric model hea…

1996

To improve the accuracy of measurements of left ventricular volume in the presence of an aneurysm, we used three-dimensional echocardiographic imaging to analyze the shape of left ventricles in 23 asymmetric model hearts with eccentric aneurysms of different sizes, shapes, and localizations. A standard 3.75 MHz ultrasound probe with a rotation motor device was used to obtain a three-dimensional data set. By rotating the probe stepwise 1 degree, 180 radial ultrasound pictures were digitized. On the basis of the three-dimensional data set, the following parameters were determined and compared with the dimensions of the model hearts obtained by direct measurement: total left ventricular volume…

Cardiac arrhythmia induced by hypothermia in a cardiac model in vitro

2013

The neurological damage after cardiac arrest (CA) constitutes a big challenge of hospital discharge since years. The therapeutic hypothermia therapy (34°C-32°C) has shown its benefit to reduce cerebral oxygen demand and improve neurological outcomes after the cardiac arrest. Despite the fact that induced hypothermia after CA has been shown to increase the hospital survival rate, it can have many adverse effects, among which the cardiac arrhythmia generation represents an important part (up to 34%, according different clinical studies). Compared to studies in vivo, cardiac culture in vitro provides a better spatial resolution at cellular level, which could bring some insights of the mechanis…

Optical immunosensing of effective cardiac biomarkers on acute myocardial infarction

2013

Abstract This review describes: • the advantages of examples of optical methods used in immunosensing of cardiac biomarkers and their reported applications, stressing their potential for future developments; • evaluation of some progress toward viable cardiac-biomarker measurements for detection and diagnostics of myocardial infarction; and, • trends in the development of optical immunosensors, including integrated immunosensors, and the application of nanotechnology and microfluidic technology.

P4613Long-term impact of postnatal nutritional programming on cardiac sensitivity to ischemia-reperfusion injury in vivo and on cardio-protective pat…

2019

Abstract Introduction Nutritional disturbances during the postnatal period may be responsible for a predisposition, or “programming”, to increased cardio-metabolic risk and to a progressive alteration of left ventricular contractility in adulthood. This nutritional perinatal programming may also lead to an alteration of cellular pathways involved in cardiac protection, such as the specific RISK and SAFE pathways, highlighted during pre- and post-ischemic conditioning or those of sirtuins (SIRT), histone deacetylases involved in the regulation of essential biological process. Purpose Our aim was to evaluate in mice the impact of postnatal overfeeding (PNOF) on cardiac sensitivity to ischemia…

Reperfusion Treatment in an Acute Myocardial Infarction in Patients Older Than 75 Years. Do We Need a Randomized Controlled Trial?

2005

Fibrinolytic therapy in ST-segment elevation acute myocardial infarction (AMI) constitutes one of the most important advances in cardiology in the last 25 years and has influenced the management and evolution of patients as much as the first coronary care units did. The most important limitations of fibrinolytics are the presence of absolute or relative contraindications to their administration in ≤25% of patients, their limited capacity to restore adequate coronary flow and the risk of inducing cerebral hemorrhage. They are at their most efficient in the first 2 hours’ evolution of AMI but lose their efficacy thereafter. 1 Consequently, treatment must be initiated as early as possible and …

P2482Prediction of in-hospital cardiogenic shock development among patients with ST-segment elevation myocardial infarction treated by primary percut…

2018

Exercise training intensity and connexin 43 expression in hypertrophic cardiomyopathy.

2017

• Moderate-intensity exercise improved peak oxygen consumption in hypertrophic cardiomyopathy.

Response to letter by Peng-Wu and Ma on: the relationship of cardiorespiratory fitness and venous thromboembolism: yes or no?

2019

Sir,We thank Peng-Wu and Ma for their letter [1] regarding our recently published article [2]. Their concern is that our findings cannot be generalized because it was based on only men and conducte...