Chapter 13-cardiac 檔案
... ventricle 左心室 allows it to generate the force necessary to pump blood throughout the body Although the entire heart muscle functions as a unit, atrial 心房的 muscle and ventricular 心室的 muscle are physically anchored 固定to and separated 分隔 by a layer of fibrous connective tissue called the fibrous skel ...
... ventricle 左心室 allows it to generate the force necessary to pump blood throughout the body Although the entire heart muscle functions as a unit, atrial 心房的 muscle and ventricular 心室的 muscle are physically anchored 固定to and separated 分隔 by a layer of fibrous connective tissue called the fibrous skel ...
Association of prolapse of posterior cusp of mitral - Heart
... Angiography Left ventricular biplane angiograms (Elema-Schonander), or cineangiograms in the right anterior oblique were performed. Mitral regurgitation was seen in 6 patients; it was slight in 4, and moderate in 2 (Table). Prolapse of the posterior cusp of the mitral valve was shown in all. The ang ...
... Angiography Left ventricular biplane angiograms (Elema-Schonander), or cineangiograms in the right anterior oblique were performed. Mitral regurgitation was seen in 6 patients; it was slight in 4, and moderate in 2 (Table). Prolapse of the posterior cusp of the mitral valve was shown in all. The ang ...
DISORDER OF CARDIAC RHYTHM
... heart. The ends of the Purkinje fibers penetrate into the muscle mass and finally become continuous with the cardiac muscle fibers. In abnormal conditions if а rhythmical discharge rate some other part of the heart is more rapid than that of the sinus node they can develop rhythmical excitation. The ...
... heart. The ends of the Purkinje fibers penetrate into the muscle mass and finally become continuous with the cardiac muscle fibers. In abnormal conditions if а rhythmical discharge rate some other part of the heart is more rapid than that of the sinus node they can develop rhythmical excitation. The ...
View PDF - CiteSeerX
... major cause of death worldwide (2). The rat has been the most widely studied animal model in cardiovascular research over the last decade because its relatively low cost, short gestation period, and moderate size make it suitable for a range of physiologic tests (3). Rat models of hypertension, hear ...
... major cause of death worldwide (2). The rat has been the most widely studied animal model in cardiovascular research over the last decade because its relatively low cost, short gestation period, and moderate size make it suitable for a range of physiologic tests (3). Rat models of hypertension, hear ...
Non-invasive assessment of pulmonary blood flow using an inert
... histological diagnoses, including two patients with hypersensitivity pneumonitis. It is possible that patients with hypersensitivity pneumonitis may have increased intrapulmonary shunting related to local areas of consolidation. However, this is unlikely, as our results remained significant with the ...
... histological diagnoses, including two patients with hypersensitivity pneumonitis. It is possible that patients with hypersensitivity pneumonitis may have increased intrapulmonary shunting related to local areas of consolidation. However, this is unlikely, as our results remained significant with the ...
Left anterior fascicular VT
... The basis of his comment is that he saw 1 (ONE) patient with this characteristic (AV dissociation, wide complex, not VT) (perfectly explained by him, so no need for me to repeat it). That means that his UNIVERSE is composed by another 99 AV dissociations that were VT. (one case 1%, thus 100 is the t ...
... The basis of his comment is that he saw 1 (ONE) patient with this characteristic (AV dissociation, wide complex, not VT) (perfectly explained by him, so no need for me to repeat it). That means that his UNIVERSE is composed by another 99 AV dissociations that were VT. (one case 1%, thus 100 is the t ...
Consequences of Arterial Switch Operation in Children
... surgical procedure; imposing new challenges and questions that need to be addressed. The main aim for this thesis was to assess the long-term cardiac consequences on the autonomic nervous system after surgery (paper I and II) and to create an animal model allowing for cardiac physiological studies ( ...
... surgical procedure; imposing new challenges and questions that need to be addressed. The main aim for this thesis was to assess the long-term cardiac consequences on the autonomic nervous system after surgery (paper I and II) and to create an animal model allowing for cardiac physiological studies ( ...
Left Ventricular Assist Devices
... This document addresses the role of echocardiography during the different phases of care of patients with FDAapproved long-term, surgically implanted CF-LVADs. The phases of patient care addressed include preoperative patient selection, perioperative TEE imaging, postoperative surveillance, optimiza ...
... This document addresses the role of echocardiography during the different phases of care of patients with FDAapproved long-term, surgically implanted CF-LVADs. The phases of patient care addressed include preoperative patient selection, perioperative TEE imaging, postoperative surveillance, optimiza ...
Pilot Survey of the Diagnosis and Management of Heart Failure in
... We hope our results will lead to strategies to improve patient care. Ann Acad Med Singapore 2004;33:413-8 Key words: Cardiac oedema, Heart decompensation, Heart disease ...
... We hope our results will lead to strategies to improve patient care. Ann Acad Med Singapore 2004;33:413-8 Key words: Cardiac oedema, Heart decompensation, Heart disease ...
Ministry of Public Health Republic of Uzbekistan Center for
... and morphological changes in the valve (thickening, fibrosis, calcification, impaired movement of cusps), functional parameters (gradient pressure, pressure in the LA, the presence and severity of concomitant mitral regurgitation, LV and RV function), the size of the left atrium and mitral orifice ...
... and morphological changes in the valve (thickening, fibrosis, calcification, impaired movement of cusps), functional parameters (gradient pressure, pressure in the LA, the presence and severity of concomitant mitral regurgitation, LV and RV function), the size of the left atrium and mitral orifice ...
Heart Physiology
... ▪ concentration of various ions ▪ potassium and sodium decrease heart action ▪ calcium increases heart action • physical exercise increases heart action • increase in body temperature increases heart action • age deceases heart action • sex influences heart action ...
... ▪ concentration of various ions ▪ potassium and sodium decrease heart action ▪ calcium increases heart action • physical exercise increases heart action • increase in body temperature increases heart action • age deceases heart action • sex influences heart action ...
Expert consensus for multi-modality imaging evaluation of
... adjuvant radiotherapy after conservative or radical breast surgery, adjuvant or exclusive radiotherapy of lung and oesophageal cancer, and as a complement to systemic treatment in lymphoma. Irradiation of the heart increases the risk of the so-called ‘radiation-induced’ heart disease (RIHD).2 RIHD i ...
... adjuvant radiotherapy after conservative or radical breast surgery, adjuvant or exclusive radiotherapy of lung and oesophageal cancer, and as a complement to systemic treatment in lymphoma. Irradiation of the heart increases the risk of the so-called ‘radiation-induced’ heart disease (RIHD).2 RIHD i ...
echocardiographic findings in patients with acute coronary
... coronary event. This subgroup of patients has an increased risk of ischemia related morbidity and mortality. Echocardiographically documented segmental wall motion abnormalities in these patients stratifies this particular subgroup at increased risk for adverse cardiac events, although there is no c ...
... coronary event. This subgroup of patients has an increased risk of ischemia related morbidity and mortality. Echocardiographically documented segmental wall motion abnormalities in these patients stratifies this particular subgroup at increased risk for adverse cardiac events, although there is no c ...
Canine Heart Failure Research at Wayne State University
... The lack of translational success of heart failure animal research is primarily attributable to species differences in cardiovascular physiology and pathophysiology, and to the inability to replicate human heart failure causes, natural history, manifestations, complications, and responses to treatme ...
... The lack of translational success of heart failure animal research is primarily attributable to species differences in cardiovascular physiology and pathophysiology, and to the inability to replicate human heart failure causes, natural history, manifestations, complications, and responses to treatme ...
English
... passageway for the electric signals between the atria and ventricles and allow electric activity in the ventricles to occur immediately after electric activity in the atria without having to wait for the electric impulse to travel through the AV node. In this situation, the ECG may not have much of ...
... passageway for the electric signals between the atria and ventricles and allow electric activity in the ventricles to occur immediately after electric activity in the atria without having to wait for the electric impulse to travel through the AV node. In this situation, the ECG may not have much of ...
16 Analyzing EKG vectors and MEA
... • Read from each lead independently; one at a time over several heartbeats. • See what each lead shows. • 12 leads – 3 bipolar limb leads (I, II, III) – 3 augmented unipolar limb leads • (aVR, aVL, aVF) – 6 precordial leads (chest leads, V1V6) ...
... • Read from each lead independently; one at a time over several heartbeats. • See what each lead shows. • 12 leads – 3 bipolar limb leads (I, II, III) – 3 augmented unipolar limb leads • (aVR, aVL, aVF) – 6 precordial leads (chest leads, V1V6) ...
Full Text
... Diagnostics, Basel, Switzerland) recognizes only the proBNP. These data, together with previous studies, support the hypothesis that HF is a state of deficiency of active BNP 1-32, thus accounting partially for the discrepancy between the high immunoreactive BNP levels and the lack of biological act ...
... Diagnostics, Basel, Switzerland) recognizes only the proBNP. These data, together with previous studies, support the hypothesis that HF is a state of deficiency of active BNP 1-32, thus accounting partially for the discrepancy between the high immunoreactive BNP levels and the lack of biological act ...
Double Chambered Right Ventricle - Journal of the Association of
... A 27 years old female was admitted to our hospital with complaints of swelling of feet and abdomen, pain abdomen and exertional dyspnea from last 1 week. On examination she was found to have congestive heart failure. Chest x-ray revealed mild cardiomegaly with left pleural effusion and electrocardio ...
... A 27 years old female was admitted to our hospital with complaints of swelling of feet and abdomen, pain abdomen and exertional dyspnea from last 1 week. On examination she was found to have congestive heart failure. Chest x-ray revealed mild cardiomegaly with left pleural effusion and electrocardio ...
File
... How are micro and macro structures related to cardiac function? How does this relation change in the presence of disease? And how can MRI help to uncover these changes? The central theme of this Workshop program seeks to provide attendees with an in-depth look at structure and physiology of the hear ...
... How are micro and macro structures related to cardiac function? How does this relation change in the presence of disease? And how can MRI help to uncover these changes? The central theme of this Workshop program seeks to provide attendees with an in-depth look at structure and physiology of the hear ...
Stage #1 - IEEE Real World Engineering Projects
... places on the body surface – Measure potential difference across a lead (i.e. a pair of electrodes) – Exploit the fact that body tissue is a conductive medium that can relay cardiac potentials ...
... places on the body surface – Measure potential difference across a lead (i.e. a pair of electrodes) – Exploit the fact that body tissue is a conductive medium that can relay cardiac potentials ...
Cardiovascular Manifestations of Tuberous Sclerosis Complex and
... increasing dramatically; therefore, it is reasonable to anticipate that the rate of fetal diagnosis will increase significantly. Fetal cardiac tumors may present in utero as a mass on ultrasonography, irregular heart rhythm, hydrops fetalis, or pericardial effusion. Cardiac rhabdomyomas can increase ...
... increasing dramatically; therefore, it is reasonable to anticipate that the rate of fetal diagnosis will increase significantly. Fetal cardiac tumors may present in utero as a mass on ultrasonography, irregular heart rhythm, hydrops fetalis, or pericardial effusion. Cardiac rhabdomyomas can increase ...
THE ELECTROCARDIOGRAM, PRINCIPLES AND RECORDING
... The electrocardiogram (ECG or EKG) records the electrical potentials arising within the heart. The potential changes are measured by electrodes placed on the body surface. ECG records only the electrical activity and is not a measure of the mechanical behavior of the heart. Thus three of five major ...
... The electrocardiogram (ECG or EKG) records the electrical potentials arising within the heart. The potential changes are measured by electrodes placed on the body surface. ECG records only the electrical activity and is not a measure of the mechanical behavior of the heart. Thus three of five major ...
New Observation of Electrocardiogram During Sinus Rhythm on the
... through the His-Purkinje axis.18 Another possible explanation is the AF or decremental AV pathway is being rendered refractory by concealed retrograde penetration into it from impulse over the AV node.23 The terminal QRS slurring or notching was absent in all 8 patients with subtle delta waves. Ther ...
... through the His-Purkinje axis.18 Another possible explanation is the AF or decremental AV pathway is being rendered refractory by concealed retrograde penetration into it from impulse over the AV node.23 The terminal QRS slurring or notching was absent in all 8 patients with subtle delta waves. Ther ...
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.