Determination of infarct size in isolated perfused rat hearts subjected
... the left atrium and ventricle are cannulated. The perfusion fluid enters to the left atrium from the left atrial reservoir through the left atrial cannula. From the left atrium, and than from the left ventricle the own work of the heart ejects the perfusion fluid through the aorta against a certain ...
... the left atrium and ventricle are cannulated. The perfusion fluid enters to the left atrium from the left atrial reservoir through the left atrial cannula. From the left atrium, and than from the left ventricle the own work of the heart ejects the perfusion fluid through the aorta against a certain ...
Left Ventricular Systolic Dysfunction in Asymptomatic Black
... female subjects. Our male subjects also had significantly greater LV chamber dilatation compared to the female subjects, similar to Heart of Soweto Study.10 The explanation for this gender difference is uncertain, but it is generally known that cardiovascular disease tends to occur earlier in men th ...
... female subjects. Our male subjects also had significantly greater LV chamber dilatation compared to the female subjects, similar to Heart of Soweto Study.10 The explanation for this gender difference is uncertain, but it is generally known that cardiovascular disease tends to occur earlier in men th ...
Exercise Management
... • Pacing equipment can normalize these aberrations and improve symptoms while enhancing exercise performance ...
... • Pacing equipment can normalize these aberrations and improve symptoms while enhancing exercise performance ...
Normal age-related changes in left ventricular function: Role of
... analyse the tagging data by aligning a mesh on the tags between the endo- and epicardial contours, and is described in detail elsewhere [14,18]. The epicardial torsion between the two planes (taken as the circumferential-longitudinal shear angle defined on the epicardial surface) was calculated [19]. ...
... analyse the tagging data by aligning a mesh on the tags between the endo- and epicardial contours, and is described in detail elsewhere [14,18]. The epicardial torsion between the two planes (taken as the circumferential-longitudinal shear angle defined on the epicardial surface) was calculated [19]. ...
Datasheet VARIABLES Utstein(C=core, O=optional)
... resuscitation,” or ROSC, is defined for all rhythms as the restoration of a spontaneous perfusing rhythm that results in more than an occasional gasp, fleeting palpated pulse, or arterial waveform. Assisted circulation (e.g., extracorporeal support such as extracorporeal membrane oxygenation or bive ...
... resuscitation,” or ROSC, is defined for all rhythms as the restoration of a spontaneous perfusing rhythm that results in more than an occasional gasp, fleeting palpated pulse, or arterial waveform. Assisted circulation (e.g., extracorporeal support such as extracorporeal membrane oxygenation or bive ...
Atrial Fibrillation Begets Heart Failure and Vice Versa
... Background—Atrial fibrillation (AF) and heart failure (HF) frequently coexist and together confer an adverse prognosis. The association of AF with HF subtypes has not been well described. We sought to examine differences in the temporal association of AF and HF with preserved versus reduced ejection ...
... Background—Atrial fibrillation (AF) and heart failure (HF) frequently coexist and together confer an adverse prognosis. The association of AF with HF subtypes has not been well described. We sought to examine differences in the temporal association of AF and HF with preserved versus reduced ejection ...
Adaptation of baroreflex function to increased carotid artery
... consequence of abnormal aortico-pulmonary septal development. Although these TGApatients after surgical correction have good long-term prognosis, they also have considerable late morbidity and mortality caused, in part, by rhythm disturbances (1, 2, 3). The mechanism of these rhythm disturbances is ...
... consequence of abnormal aortico-pulmonary septal development. Although these TGApatients after surgical correction have good long-term prognosis, they also have considerable late morbidity and mortality caused, in part, by rhythm disturbances (1, 2, 3). The mechanism of these rhythm disturbances is ...
Cardiac Nurses Current Awareness Newsletter May 2016
... All topics are updated as new evidence becomes available and our peer review process is complete. Literature review current through: Apr 2016. | This topic last updated: May 09, 2016. The following represent additions to UpToDate from the past six months that were considered by the editors and autho ...
... All topics are updated as new evidence becomes available and our peer review process is complete. Literature review current through: Apr 2016. | This topic last updated: May 09, 2016. The following represent additions to UpToDate from the past six months that were considered by the editors and autho ...
Evaluation of left ventricular function in patients with chronic
... most frequent pulmonary disease in Poland affecting in about 10% of the population aged over 40 years. It is generally known that dyspnea and exercise tolerance reduction in COPD patients occur in the advanced stage of the disease as a result of bronchial patency disturbance progression, and the dev ...
... most frequent pulmonary disease in Poland affecting in about 10% of the population aged over 40 years. It is generally known that dyspnea and exercise tolerance reduction in COPD patients occur in the advanced stage of the disease as a result of bronchial patency disturbance progression, and the dev ...
Heart rate variability response to mental arithmetic stress in patients
... concerned with autonomic control, including the hippocampi, and temporal, cingulate, and prefrontal areas. (McDonald et al., 2004). Although it is well established that schizophrenia is highly heritable (Kendler et al., 1994; Cardno et al., 1999), the syndrome probably requires the concerted effect ...
... concerned with autonomic control, including the hippocampi, and temporal, cingulate, and prefrontal areas. (McDonald et al., 2004). Although it is well established that schizophrenia is highly heritable (Kendler et al., 1994; Cardno et al., 1999), the syndrome probably requires the concerted effect ...
Fibrosis as a contributing factor to the induction of ventricular
... amount of intracellular connections. In some conditions fibrosis may per se cause unidirectional block independently on dispersion of repolarization (sink-source mismatch phenomenon). The resulting re-entry may cause life-threatening arrhythmias: ventricular tachycardia (VT) or ventricular fibrillat ...
... amount of intracellular connections. In some conditions fibrosis may per se cause unidirectional block independently on dispersion of repolarization (sink-source mismatch phenomenon). The resulting re-entry may cause life-threatening arrhythmias: ventricular tachycardia (VT) or ventricular fibrillat ...
The Evolution of ICD Therapy:
... Indications for Dual Chamber Temporary Pacing Prior to the implant of a permanent ...
... Indications for Dual Chamber Temporary Pacing Prior to the implant of a permanent ...
the time course of repolarisation (and hence refrac - Heart
... St George's Hospital Medical School, London Patients with chronic complete heart block are known to have a reduced cerebral blood flow of up to 20% associated with a reduction in cardiac output of 30% despite a normal blood pressure. The time course of these changes is unknown, but they are reversed ...
... St George's Hospital Medical School, London Patients with chronic complete heart block are known to have a reduced cerebral blood flow of up to 20% associated with a reduction in cardiac output of 30% despite a normal blood pressure. The time course of these changes is unknown, but they are reversed ...
CURRICULUM VITAE - Assiut University
... extremity arterial disease in diabetic patients. M. Sc thesis, by Ahmed Mohamed Adel Ali, to be submitted in 2014. 36.Influence of admission plasma glucose level on the outcome of patients with STEMI during the first week and after one month. M. Sc, thesis by Bassem Mekhaeil Bassanty, to be submitte ...
... extremity arterial disease in diabetic patients. M. Sc thesis, by Ahmed Mohamed Adel Ali, to be submitted in 2014. 36.Influence of admission plasma glucose level on the outcome of patients with STEMI during the first week and after one month. M. Sc, thesis by Bassem Mekhaeil Bassanty, to be submitte ...
Morphological expression of the pig coronary sinus and its
... interventricular branch have been described in humans. MB is generally considered a vascular heart variation due to their intermittent or enduring reducing of the arterial lumen, with a possible ischemic effect. Cardiac muscle ischemia may occur during the first 1/3 of diastole due to prolonged coro ...
... interventricular branch have been described in humans. MB is generally considered a vascular heart variation due to their intermittent or enduring reducing of the arterial lumen, with a possible ischemic effect. Cardiac muscle ischemia may occur during the first 1/3 of diastole due to prolonged coro ...
Acute coronary syndromes
... death. The 10% increase in the risk of myocardial infarction during follow-up by hypertension was quadrupled by diabetes. In paper III the overall ventricular repolarization dispersion (Tarea) almost tripled (118 vs. 41µVs; p<.0001) and the heterogeneity of the action potential morphology (ventricul ...
... death. The 10% increase in the risk of myocardial infarction during follow-up by hypertension was quadrupled by diabetes. In paper III the overall ventricular repolarization dispersion (Tarea) almost tripled (118 vs. 41µVs; p<.0001) and the heterogeneity of the action potential morphology (ventricul ...
transesophageal echocardiography
... Trans thoracic echocardiogram views are particularly difficult to obtain in patients with obesity, emphysema, or abnormal chest wall anatomy because bone, fat and air containing lung interfere with ultrasonic penetration. To avoid these problems, TEE transducers were developed. They are mounted on m ...
... Trans thoracic echocardiogram views are particularly difficult to obtain in patients with obesity, emphysema, or abnormal chest wall anatomy because bone, fat and air containing lung interfere with ultrasonic penetration. To avoid these problems, TEE transducers were developed. They are mounted on m ...
Acute right ventricular failure–– from pathophysiology to new
... Right ventricular failure has a similar incidence to left-sided heart failure, with each affecting about 1 in 20 of the population [3]. Left-sided heart failure is often a chronic, progressive disease with mortality four to eight times greater than that of the age-matched general population [4]. In ...
... Right ventricular failure has a similar incidence to left-sided heart failure, with each affecting about 1 in 20 of the population [3]. Left-sided heart failure is often a chronic, progressive disease with mortality four to eight times greater than that of the age-matched general population [4]. In ...
H. Chiang, J. Zhao, S.M. - Rogers Research Group
... The tissue/SiO2/gate metal pad forms a large capacitor (CCAP) that couples with the gate that drives the transistor channel. This direct coupling to the semiconductor channel of the amplifier, bypasses the effects of capacitance in the wiring to remote electronics, and as such represents an importan ...
... The tissue/SiO2/gate metal pad forms a large capacitor (CCAP) that couples with the gate that drives the transistor channel. This direct coupling to the semiconductor channel of the amplifier, bypasses the effects of capacitance in the wiring to remote electronics, and as such represents an importan ...
A study of electrocardiographic changes in acute cerebrovascular
... SAH demonstrates that electrocardiographical abnormalities occur very frequently in these conditions. Among the 100 patients, 54 were males and 46 were females (sex ratio was M:F – 1.1:1). The cases of stroke were more common in the 5th and 6th decade, making 61%, which is comparable to Bozluoclay e ...
... SAH demonstrates that electrocardiographical abnormalities occur very frequently in these conditions. Among the 100 patients, 54 were males and 46 were females (sex ratio was M:F – 1.1:1). The cases of stroke were more common in the 5th and 6th decade, making 61%, which is comparable to Bozluoclay e ...
Acute right ventricular failure—from pathophysiology to new
... Right ventricular failure has a similar incidence to left-sided heart failure, with each affecting about 1 in 20 of the population [3]. Left-sided heart failure is often a chronic, progressive disease with mortality four to eight times greater than that of the age-matched general population [4]. In ...
... Right ventricular failure has a similar incidence to left-sided heart failure, with each affecting about 1 in 20 of the population [3]. Left-sided heart failure is often a chronic, progressive disease with mortality four to eight times greater than that of the age-matched general population [4]. In ...
USCOM: ultrasound cardiac output monitor for patients requiring
... DISCLAIMER: This report is based on information available at the time of research and cannot be expected to cover any developments arising from subsequent improvements to health technologies. This report is based on a limited literature search and is not a definitive statement on the safety, effecti ...
... DISCLAIMER: This report is based on information available at the time of research and cannot be expected to cover any developments arising from subsequent improvements to health technologies. This report is based on a limited literature search and is not a definitive statement on the safety, effecti ...
Heart Transplantation at Duke University Medical Center
... alone and may be referred for heart-lung transplantation.However, heart transplant patients can experience prolonged respiratory dysfunction and may require more than twenty four hours of ventilator support. Rarely, an individual will remain on a ventillator for more than seven days, and may require ...
... alone and may be referred for heart-lung transplantation.However, heart transplant patients can experience prolonged respiratory dysfunction and may require more than twenty four hours of ventilator support. Rarely, an individual will remain on a ventillator for more than seven days, and may require ...
Relations between pressure in pulmonary special - Heart
... is continually monitored in order to disclose Direct flow measurements from the pulmonleft ventricular insufficiency and the wedged ary vein and left atrium are in accordance pressure cannot be easily recorded. This is with these results (Morkin et al., i965). now becoming more common in coronary Th ...
... is continually monitored in order to disclose Direct flow measurements from the pulmonleft ventricular insufficiency and the wedged ary vein and left atrium are in accordance pressure cannot be easily recorded. This is with these results (Morkin et al., i965). now becoming more common in coronary Th ...
Cardiac contractility modulation
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Cardiac contractility modulation (CCM) is a treatment for patients with moderate to severe left ventricular systolic heart failure (NYHA class II–IV). The short- and long-term use of this therapy enhances both the strength of ventricular contraction and the heart’s pumping capacity. The CCM mechanism is based on stimulation of the cardiac muscle by non-excitatory electrical signals (NES). CCM treatment is delivered by a pacemaker-like device that applies the NES, adjusted to and synchronized with the electrical action in the cardiac cycle.In CCM therapy, electrical stimulation is applied to the cardiac muscle during the absolute refractory period. In this phase of the cardiac cycle, electrical signals cannot trigger new cardiac muscle contractions, hence this type of stimulation is known as a non-excitatory stimulation. However, the electrical CCM signals increase the influx of calcium ions into the cardiac muscle cells (cardiomyocytes). In contrast to other electrical stimulation treatments for heart failure, such as pacemaker therapy or implantable cardioverter defibrillators (ICD), CCM does not affect the cardiac rhythm directly. Rather, the aim is to enhance the heart’s natural contraction (the native cardiac contractility) sustainably over long periods of time. Furthermore, unlike most interventions that increase cardiac contractility, CCM is not associated with an unfavorable increase in oxygen demand by the heart (measured in terms of Myocardial Oxygen Consumption or MVO2). This may be explained by the beneficial effect CCM has in improving cardiac efficiency. A meta-analysis in 2014 and an overview of device-based treatment options in heart failure in 2013 concluded that CCM treatment is safe, that it is generally beneficial to patients and that CCM treatment increases the exercise tolerance (ET) and quality of life (QoL) of patients. Furthermore, preliminary long-term survival data shows that CCM is associated with lower long-term mortality in heart failure patients when compared with expected rates among similar patients not treated with CCM.