Asynchronous Atrioventricular Valve Opening as it Relates
... viewed on a television screen and simultaneously recorded on VHS videotape. When indicated, hard copy recordings were obtained at a paper speed of 50 or 100 mm/s. Color flow data were obtained only on the last nine babies studied because color flow instrumentation was not available earlier. Imaging ...
... viewed on a television screen and simultaneously recorded on VHS videotape. When indicated, hard copy recordings were obtained at a paper speed of 50 or 100 mm/s. Color flow data were obtained only on the last nine babies studied because color flow instrumentation was not available earlier. Imaging ...
Downloaded
... deficiency. Three patients (Nos. 21, 28, and 31) had been taking thiamine for several weeks prior to study. Some of the clinical characteristics are presented in Table I. The patients were studied in the early morning, in the postabsorptive state, in recumbency and without sedation. The cardiac outp ...
... deficiency. Three patients (Nos. 21, 28, and 31) had been taking thiamine for several weeks prior to study. Some of the clinical characteristics are presented in Table I. The patients were studied in the early morning, in the postabsorptive state, in recumbency and without sedation. The cardiac outp ...
long notes
... The atrioventricular valves develop as subendocardial and endocardial tissues and project into the AV canal. These bulges are excavated from the ventricular side and invaded by muscle. Eventually, the valve will be constituted from both connective tissue and myocardial tissue. In addition, muscle ce ...
... The atrioventricular valves develop as subendocardial and endocardial tissues and project into the AV canal. These bulges are excavated from the ventricular side and invaded by muscle. Eventually, the valve will be constituted from both connective tissue and myocardial tissue. In addition, muscle ce ...
Having a cardiac resynchronisation therapy CRT
... having the procedure under general anaesthetic is included on below. The CRT-P is usually put in on the opposite side to your dominant arm. For example, if you are right handed, it will be put in on the left side. This is usually because the leads will be under less strain on this side. The doctor w ...
... having the procedure under general anaesthetic is included on below. The CRT-P is usually put in on the opposite side to your dominant arm. For example, if you are right handed, it will be put in on the left side. This is usually because the leads will be under less strain on this side. The doctor w ...
Assessment of the Morphologic Right Ventricular Function after the
... slope is the mark of the ventilation efficacy for CO2 ejection from the body. Both reflect the prognosis index of chronic heart failure [4,5]. Better SV prognosis is expected with improved VO2 and VE/VCO2. Exercise along with appropriate medications may lead to improved physical conditioning, which ...
... slope is the mark of the ventilation efficacy for CO2 ejection from the body. Both reflect the prognosis index of chronic heart failure [4,5]. Better SV prognosis is expected with improved VO2 and VE/VCO2. Exercise along with appropriate medications may lead to improved physical conditioning, which ...
Supplementary Information (doc 58K)
... At the 3rd and 20th week after operation, rats were anesthetized with isoflurane and were placed in the supine position. The right internal jugular vein was cannulated to administer fluids. Mean arterial pressure was monitored and recorded via carotid artery cannulation during the hemodynamic study. ...
... At the 3rd and 20th week after operation, rats were anesthetized with isoflurane and were placed in the supine position. The right internal jugular vein was cannulated to administer fluids. Mean arterial pressure was monitored and recorded via carotid artery cannulation during the hemodynamic study. ...
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 ...
Full Text - Archives of Cardiovascular Imaging
... Background: Pulmonary artery hypertension is the presentation of various types of cardiovascular and systematic diseases. There are different kinds of noninvasive methods to determine right ventricular function, pulmonary artery pressure, and effect of pulmonary hypertension on right ventricular fun ...
... Background: Pulmonary artery hypertension is the presentation of various types of cardiovascular and systematic diseases. There are different kinds of noninvasive methods to determine right ventricular function, pulmonary artery pressure, and effect of pulmonary hypertension on right ventricular fun ...
ABSTRACT Athletic performance tests the limits of the human body
... Some have argued that there might be a lower mutation rate in sporadic ARVC cases than in familial cohorts, and that this could explain the low-mutation rate in our cohort. However, most studies have recruited sporadic ‘index cases’ by including unrelated cases as they present to their institution. ...
... Some have argued that there might be a lower mutation rate in sporadic ARVC cases than in familial cohorts, and that this could explain the low-mutation rate in our cohort. However, most studies have recruited sporadic ‘index cases’ by including unrelated cases as they present to their institution. ...
Normothermic donor heart perfusion
... be simple, reproducible, reliable and sensitive. For example, coronary angiography can be performed on the OCS device allowing detection of occult coronary artery disease [24]. Contrast echocardiography has also been utilised to ensure myocardial perfusion [25]. Intravascular ultra sound has yet to ...
... be simple, reproducible, reliable and sensitive. For example, coronary angiography can be performed on the OCS device allowing detection of occult coronary artery disease [24]. Contrast echocardiography has also been utilised to ensure myocardial perfusion [25]. Intravascular ultra sound has yet to ...
the star™ biphasic waveform - AED Defibrillator, Buy AED
... the fat under the skin, the muscles, and the lungs surrounding the heart all "impede" the flow of electrical current to the heart. The higher a patient's impedance, the greater the opposition to defibrillation energy. Impedance varies from patient to patient based on many factors, such as skin condi ...
... the fat under the skin, the muscles, and the lungs surrounding the heart all "impede" the flow of electrical current to the heart. The higher a patient's impedance, the greater the opposition to defibrillation energy. Impedance varies from patient to patient based on many factors, such as skin condi ...
Computational cardiac atlases: from patient to population and back Review Article
... of local wall motion. However, these images provide detailed information on regional wall motion during diastole and systole, which can be combined with other imaging or clinical data to yield greater understanding of underlying disease processes. Model-based analysis tools (Fig. 2) allow the calcul ...
... of local wall motion. However, these images provide detailed information on regional wall motion during diastole and systole, which can be combined with other imaging or clinical data to yield greater understanding of underlying disease processes. Model-based analysis tools (Fig. 2) allow the calcul ...
Timing of Depolarization and Contraction in the Paced
... RVA and LVFW. Epicardial recordings were obtained at an acquisition rate of 1,000 Hz. After the electrical data were obtained, the animals were euthanized and the hearts excised. The hearts were filled with vinyl polysiloxane in order to maintain an end-diastolic shape and the sock electrode locatio ...
... RVA and LVFW. Epicardial recordings were obtained at an acquisition rate of 1,000 Hz. After the electrical data were obtained, the animals were euthanized and the hearts excised. The hearts were filled with vinyl polysiloxane in order to maintain an end-diastolic shape and the sock electrode locatio ...
Effects of the HeartMate II continuous
... failure, alterations in RV function, severity of tricuspid regurgitation (TR), and cardiac hemodynamics after HMII implantation. METHODS: Echocardiograms (n ⫽ 22) and right heart catheterizations (n ⫽ 40) were performed before and after 4 to 6 months of HMII support in 40 bridge-to-transplant patien ...
... failure, alterations in RV function, severity of tricuspid regurgitation (TR), and cardiac hemodynamics after HMII implantation. METHODS: Echocardiograms (n ⫽ 22) and right heart catheterizations (n ⫽ 40) were performed before and after 4 to 6 months of HMII support in 40 bridge-to-transplant patien ...
Acute coronary syndromes and atrial fibrillation
... fibrillation increases with age, from <0.5% at 40 to 50 years old, up to 5% to 15% at 80 years old. Men suffer more often than women from atrial fibrillation. It is estimated that more than 8 million patients over 80 years old will be affected by atrial fibrillation in 2050. Atrial fibrillation is a ...
... fibrillation increases with age, from <0.5% at 40 to 50 years old, up to 5% to 15% at 80 years old. Men suffer more often than women from atrial fibrillation. It is estimated that more than 8 million patients over 80 years old will be affected by atrial fibrillation in 2050. Atrial fibrillation is a ...
short communication heart rate and gas exchange in freely diving
... Dunstone & O'Connor, 1979a; Birks& Dunstone, 1985). A pronounced bradycardia during such dives suggests that in this situation the mink invoke physiological adjustments (i.e. an oxygen-conserving response) that will result in an increased breath-hold endurance time. The duration of dives during whic ...
... Dunstone & O'Connor, 1979a; Birks& Dunstone, 1985). A pronounced bradycardia during such dives suggests that in this situation the mink invoke physiological adjustments (i.e. an oxygen-conserving response) that will result in an increased breath-hold endurance time. The duration of dives during whic ...
14 Cardiovascular Physiology
... presents a problem because diffusion slows as distance increases [p. 141]. For example, oxygen consumption in the interior cells of larger animals exceeds the rate at which oxygen can diffuse from the body surface. One solution to overcome slow diffusion was the evolutionary development of circulato ...
... presents a problem because diffusion slows as distance increases [p. 141]. For example, oxygen consumption in the interior cells of larger animals exceeds the rate at which oxygen can diffuse from the body surface. One solution to overcome slow diffusion was the evolutionary development of circulato ...
Example of ICS Formatting
... expressions, the lexical resources used in discourse, whether figurative language, idioms or ordinary vocabulary. Metaphor is for most people a device of the poetic imagination and the rhetorical flourish—a matter of extraordinary rather than ordinary language. Moreover, metaphor is typically viewed ...
... expressions, the lexical resources used in discourse, whether figurative language, idioms or ordinary vocabulary. Metaphor is for most people a device of the poetic imagination and the rhetorical flourish—a matter of extraordinary rather than ordinary language. Moreover, metaphor is typically viewed ...
heart failure - Maury Regional Medical Center
... increased activity. You must listen to your body. If you feel poorly after physical activity, take it easy until you feel better. Remember, sexual activity is physical activity, too. Your doctor can also advise you when to resume sexual activity. ...
... increased activity. You must listen to your body. If you feel poorly after physical activity, take it easy until you feel better. Remember, sexual activity is physical activity, too. Your doctor can also advise you when to resume sexual activity. ...
Arrhythmogenic Right Ventricular Dysplasia
... be noted. Rarely, a murmur may be appreciated. If the right ventricle is greatly dilated, asymmetry of the chest wall may be seen. The diagnosis of ARVD often is made following a work-up for tachycardia in an otherwise healthy adult. Fifty to 90 percent of persons with ARVD will have characteristic ...
... be noted. Rarely, a murmur may be appreciated. If the right ventricle is greatly dilated, asymmetry of the chest wall may be seen. The diagnosis of ARVD often is made following a work-up for tachycardia in an otherwise healthy adult. Fifty to 90 percent of persons with ARVD will have characteristic ...
Retinoids and Cardiac Development
... its pumping function. At this stage, the heart is not yet covered by the epicardium, an external tissue layer, which is only added during the establishment of cardiac chambers (Figure 1). Development of ...
... its pumping function. At this stage, the heart is not yet covered by the epicardium, an external tissue layer, which is only added during the establishment of cardiac chambers (Figure 1). Development of ...
Normal age-related changes in left ventricular function: Role of
... of the data presented and their discussed interpretation. ...
... of the data presented and their discussed interpretation. ...
Electrocardiography
Electrocardiography (ECG or EKG*) is the process of recording the electrical activity of the heart over a period of time using electrodes placed on a patient's body. These electrodes detect the tiny electrical changes on the skin that arise from the heart muscle depolarizing during each heartbeat.In a conventional 12 lead ECG, ten electrodes are placed on the patient's limbs and on the surface of the chest. The overall magnitude of the heart's electrical potential is then measured from twelve different angles (""leads"") and is recorded over a period of time (usually 10 seconds). In this way, the overall magnitude and direction of the heart's electrical depolarization is captured at each moment throughout the cardiac cycle. The graph of voltage versus time produced by this noninvasive medical procedure is referred to as an electrocardiogram (abbreviated ECG or EKG).During each heartbeat, a healthy heart will have an orderly progression of depolarization that starts with pacemaker cells in the sinoatrial node, spreads out through the atrium, passes through the atrioventricular node down into the bundle of His and into the Purkinje fibers spreading down and to the left throughout the ventricles. This orderly pattern of depolarization gives rise to the characteristic ECG tracing. To the trained clinician, an ECG conveys a large amount of information about the structure of the heart and the function of its electrical conduction system. Among other things, an ECG can be used to measure the rate and rhythm of heartbeats, the size and position of the heart chambers, the presence of any damage to the heart's muscle cells or conduction system, the effects of cardiac drugs, and the function of implanted pacemakers.