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... anteriorly to expel haemolymph into the aorta [36]. At the anterior side a secondary site of contraction initiation has been observed. This allows for a reversal in haemolymph flow [34]. Molecularly, the cardiac muscle cells in drosophila and mammalian species show a striking degree of similarity. T ...
... anteriorly to expel haemolymph into the aorta [36]. At the anterior side a secondary site of contraction initiation has been observed. This allows for a reversal in haemolymph flow [34]. Molecularly, the cardiac muscle cells in drosophila and mammalian species show a striking degree of similarity. T ...
Restrictive Cardiomyopathy, Constrictive Pericarditis, and Cardiac
... The majority of contemporary cases of nonidiopathic constrictive pericarditis are caused by previous cardiac surgery, radiation exposure, and chronic pericarditis with a myriad of etiologies (31). With the increasing rates of patients undergoing cardiac surgery, the prevalence of constrictive perica ...
... The majority of contemporary cases of nonidiopathic constrictive pericarditis are caused by previous cardiac surgery, radiation exposure, and chronic pericarditis with a myriad of etiologies (31). With the increasing rates of patients undergoing cardiac surgery, the prevalence of constrictive perica ...
Interpretation of the Electronic Fetal Heart Rate During Labor
... Electronic fetal heart rate monitoring is commonly used to assess fetal wellwell-being during labor Fetal heart rate patterns are classified as reassuring, nonreassuring or ominous Nonreassuring patterns such as fetal tachycardia, bradycardia and late decelerations with good shortshort-term variabil ...
... Electronic fetal heart rate monitoring is commonly used to assess fetal wellwell-being during labor Fetal heart rate patterns are classified as reassuring, nonreassuring or ominous Nonreassuring patterns such as fetal tachycardia, bradycardia and late decelerations with good shortshort-term variabil ...
Stroke Volume Dynamics During Progressive Exercise in Healthy
... Evidence supporting this concept is provided by stroke volume values at supine rest followed by upright exercise demonstrated in Study C. As indicated in Figure 2, average stroke volume fell by 25% when moving to the sitting position (with dependent legs) on the cycle ergometer from supine rest. Wit ...
... Evidence supporting this concept is provided by stroke volume values at supine rest followed by upright exercise demonstrated in Study C. As indicated in Figure 2, average stroke volume fell by 25% when moving to the sitting position (with dependent legs) on the cycle ergometer from supine rest. Wit ...
הצעה למבנה הקוריקולום לקורסים הקדם
... 1) Sketch a typical action potential in a ventricular muscle and a pacemaker cell, labeling both the voltage and time axes accurately. Describe how ionic currents contribute to the four phases of the cardiac action potential. Use this information to explain differences in shapes of the action potent ...
... 1) Sketch a typical action potential in a ventricular muscle and a pacemaker cell, labeling both the voltage and time axes accurately. Describe how ionic currents contribute to the four phases of the cardiac action potential. Use this information to explain differences in shapes of the action potent ...
SHORT TITLE OF THE THESIS CARDIOVASCULAR SYSTEM
... the relevant performance cri terion in the cardiovascular system. Although the emphasis is on the energy aspects in this work, it is understood that for a more complete optimization including such processes as diffusion of gases (oxygen) from and into the blood, etc., the more appropriate variable m ...
... the relevant performance cri terion in the cardiovascular system. Although the emphasis is on the energy aspects in this work, it is understood that for a more complete optimization including such processes as diffusion of gases (oxygen) from and into the blood, etc., the more appropriate variable m ...
Right ventricular function in systemic hypertension
... systolic flows were recorded in the main pulmonary artery. Peak pulmonary systolic velocity and pulmonary acceleration time (PAT) defined as a time from onset to peak systolic velocity were measured. Doppler recordings with maximal systolic velocity were used for calculations. Based on pulmonary art ...
... systolic flows were recorded in the main pulmonary artery. Peak pulmonary systolic velocity and pulmonary acceleration time (PAT) defined as a time from onset to peak systolic velocity were measured. Doppler recordings with maximal systolic velocity were used for calculations. Based on pulmonary art ...
Colour M-mode velocity propagation
... in white bars. Ventricular interdependence is considered as a potential form of dyssynergy, coronary engorgement as an epi-pericardial feature, and therefore none of both are depicted. ...
... in white bars. Ventricular interdependence is considered as a potential form of dyssynergy, coronary engorgement as an epi-pericardial feature, and therefore none of both are depicted. ...
TBX5 drives Scn5a expression to regulate cardiac conduction
... (SA) and atrioventricular (AV) nodes, and the rapidly propagating ventricular conduction system (VCS), including the AV (His) bundle and right and left bundle branches. The VCS is uniquely adapted for fast conduction in order to rapidly transmit the electrical impulse governing ventricular contracti ...
... (SA) and atrioventricular (AV) nodes, and the rapidly propagating ventricular conduction system (VCS), including the AV (His) bundle and right and left bundle branches. The VCS is uniquely adapted for fast conduction in order to rapidly transmit the electrical impulse governing ventricular contracti ...
Effects of Increasing Left Ventricular Filling Pressure in Patients with
... admission to the unit. This was 12 hr to 3 days after admission to the hospital for chest pain, arrhythmia, or systemic embolus. Two patients were referred to this institution approximately 2 wk after infarction, one (J. R.) for arrhythmia and one (C. N.) for femoral artery embolus, although the lat ...
... admission to the unit. This was 12 hr to 3 days after admission to the hospital for chest pain, arrhythmia, or systemic embolus. Two patients were referred to this institution approximately 2 wk after infarction, one (J. R.) for arrhythmia and one (C. N.) for femoral artery embolus, although the lat ...
Relation between myocardial infarct location and stroke
... The ability of anticoagulation to prevent stroke is also difficult to assess because of inadequate controls and a relative paucity of embolic events (Table 3). In the present study, warfarin was used in only 1% of patients with anterior infarction, raising the possibility of a type 2 error to he lac ...
... The ability of anticoagulation to prevent stroke is also difficult to assess because of inadequate controls and a relative paucity of embolic events (Table 3). In the present study, warfarin was used in only 1% of patients with anterior infarction, raising the possibility of a type 2 error to he lac ...
450 pg/ml - Alberta Heart
... physiological requirements of the body, or requires elevated filling pressures to do so ...
... physiological requirements of the body, or requires elevated filling pressures to do so ...
Estrogen Receptor Я Protects the Murine Heart Against Left
... treatment for ER␣⫺/⫺ as well as ER⫺/⫺), the UW/BW and UW/tibia length (TL) ratios showed a significant difference between placebo and E2-treated mice (Table). In E2-treated WT and ER⫺/⫺ mice, the UW/BW ratios are significantly higher than that of E2-treated ER␣⫺/⫺ mice (Table). Together, we were a ...
... treatment for ER␣⫺/⫺ as well as ER⫺/⫺), the UW/BW and UW/tibia length (TL) ratios showed a significant difference between placebo and E2-treated mice (Table). In E2-treated WT and ER⫺/⫺ mice, the UW/BW ratios are significantly higher than that of E2-treated ER␣⫺/⫺ mice (Table). Together, we were a ...
“WITH LOVE” VALENTINE CAKE TUTORIAL Gum Glue Recipe
... Step 12B Take the coil that you made in step 11 and place it on one side of the heart as shown making sure that the beginning of the coil is secured well with gumglue. ...
... Step 12B Take the coil that you made in step 11 and place it on one side of the heart as shown making sure that the beginning of the coil is secured well with gumglue. ...
Evaluation of Suspected Valvular Heart Disease I
... Can be useful in patients whose signs/sxs are likely noncardiac in origin but cannot rule out cardiac basis ...
... Can be useful in patients whose signs/sxs are likely noncardiac in origin but cannot rule out cardiac basis ...
Percutaneous closure of a postoperative residual atrial septal defect
... catheterization, systolic pulmonary artery pressure was measured as 50 mmHg, diastolic pulmonary artery pressure as 27 mmHg, mean pulmonary artery pressure as 35 mmHg, and Qp/Qs was 3.0. During the procedure, the patient received 2 mg midazolam and continuous TEE guidance. A 6-Fr multipurpose cathet ...
... catheterization, systolic pulmonary artery pressure was measured as 50 mmHg, diastolic pulmonary artery pressure as 27 mmHg, mean pulmonary artery pressure as 35 mmHg, and Qp/Qs was 3.0. During the procedure, the patient received 2 mg midazolam and continuous TEE guidance. A 6-Fr multipurpose cathet ...
Characterisation of the human embryonic and foetal epicardium
... embryos), a time point coinciding with looping of the human embryonic heart (Hirakow, 1992; Sylva et al., 2014). To further characterise the development of the embryonic epicardium, we analysed Haematoxylin and Eosin-stained serial sections of paraffin-embedded human hearts at stages CS11 to CS14 (b ...
... embryos), a time point coinciding with looping of the human embryonic heart (Hirakow, 1992; Sylva et al., 2014). To further characterise the development of the embryonic epicardium, we analysed Haematoxylin and Eosin-stained serial sections of paraffin-embedded human hearts at stages CS11 to CS14 (b ...
Heart Lung Transplant
... fibrosis (14%). Eisenmenger syndrome is a form of congenital heart disease in which systemicto-pulmonary shunting leads to pulmonary vascular resistance. Eventually, pulmonary hypertension may lead to a reversal of the intracardiac shunting and inadequate peripheral oxygenation, or cyanosis.1 Howeve ...
... fibrosis (14%). Eisenmenger syndrome is a form of congenital heart disease in which systemicto-pulmonary shunting leads to pulmonary vascular resistance. Eventually, pulmonary hypertension may lead to a reversal of the intracardiac shunting and inadequate peripheral oxygenation, or cyanosis.1 Howeve ...
Diastolic Function Assessment: Yes you can!
... the lateral mitral annular velocities using TVI. Early transmitral flow is also a ‘one-button’ measurement. Moreover, the E wave can be measured even when at higher heart rates that preclude assessment of deceleration time or the A wave. ...
... the lateral mitral annular velocities using TVI. Early transmitral flow is also a ‘one-button’ measurement. Moreover, the E wave can be measured even when at higher heart rates that preclude assessment of deceleration time or the A wave. ...
Echocardiography use in the diagnosis and management of cardiac
... of known structural heart disease or of clinical signs of cardiac diseases (i.e. arrhythmias, heart murmurs). However, the presence of a potential cardioembolic source of embolism does not itself justify the diagnosis of cardioembolic stroke or TIA, since atherosclerotic cerebrovascular disease and ...
... of known structural heart disease or of clinical signs of cardiac diseases (i.e. arrhythmias, heart murmurs). However, the presence of a potential cardioembolic source of embolism does not itself justify the diagnosis of cardioembolic stroke or TIA, since atherosclerotic cerebrovascular disease and ...
Cir Res Review_R1_last_PK - Spiral
... and, potentially, therapeutic interventions. In this review, we focus on acute mechanical effects on cardiac electrophysiology, explore molecular candidates underlying observed responses, and discuss their pharmaceutical regulation. From this, we identify open research questions and highlight emergi ...
... and, potentially, therapeutic interventions. In this review, we focus on acute mechanical effects on cardiac electrophysiology, explore molecular candidates underlying observed responses, and discuss their pharmaceutical regulation. From this, we identify open research questions and highlight emergi ...
Heart rate modulates the slow enhancement of contraction due to
... Total atrioventricular block was induced by injecting 10% formalin (0.6–2.0 ml) into the region of the atrioventricular node through a right atrial incision, and the atriostomy was closed by a purse-string suture. This procedure was performed during temporary occlusion of the coronary perfusion line ...
... Total atrioventricular block was induced by injecting 10% formalin (0.6–2.0 ml) into the region of the atrioventricular node through a right atrial incision, and the atriostomy was closed by a purse-string suture. This procedure was performed during temporary occlusion of the coronary perfusion line ...
The Cardiovascular System
... The left and right ventricles pump blood into the systemic and pulmonary arterial trees, respectively. Cardiac output, the volume of blood ejected from each ventricle during 1 minute, is the product of heart rate and stroke volume. Stroke volume (the volume of blood ejected with each heartbeat) depe ...
... The left and right ventricles pump blood into the systemic and pulmonary arterial trees, respectively. Cardiac output, the volume of blood ejected from each ventricle during 1 minute, is the product of heart rate and stroke volume. Stroke volume (the volume of blood ejected with each heartbeat) depe ...
Your guide to heart failure
... Medication needs may vary for each person. Your doctor will work with you to find the right medications to relieve symptoms and improve your quality of life. Medication for people with heart failure Treatment of heart failure has changed with the development of new medications. Medications now contr ...
... Medication needs may vary for each person. Your doctor will work with you to find the right medications to relieve symptoms and improve your quality of life. Medication for people with heart failure Treatment of heart failure has changed with the development of new medications. Medications now contr ...
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.