Spatial relation of the right coronary artery to the cavotricuspid
... report a distance of approximately 5mm whereas RFlesions penetrate up to 8mm. ...
... report a distance of approximately 5mm whereas RFlesions penetrate up to 8mm. ...
Protocol
... healthy ventricle to become severely dysfunctional, with impaired pumping ability of the heart, leading to heart failure (HF).1 Ventricular remodelling occurs rapidly immediately post-MI, and more slowly thereafter.1 The initial stage of ventricular remodelling is the thinning of the wall of the ven ...
... healthy ventricle to become severely dysfunctional, with impaired pumping ability of the heart, leading to heart failure (HF).1 Ventricular remodelling occurs rapidly immediately post-MI, and more slowly thereafter.1 The initial stage of ventricular remodelling is the thinning of the wall of the ven ...
PATHOPHYSIOLOGY
... phenylpropanolamine, and phenylephrine) share some similar clinical features when taken in excessive amounts. Common symptoms include nausea, vomiting, diarrhea, abdominal pain, tremors, anxiety, agitation, and headaches.[1] Less common but more severe symptoms include delirium, seizures, hypertensi ...
... phenylpropanolamine, and phenylephrine) share some similar clinical features when taken in excessive amounts. Common symptoms include nausea, vomiting, diarrhea, abdominal pain, tremors, anxiety, agitation, and headaches.[1] Less common but more severe symptoms include delirium, seizures, hypertensi ...
Heart muscle engineering: An update on cardiac muscle
... equal differentiation capacities. Most experiments on cardiac differentiation have been performed with murine D3 and R1 cell lines or human H1, H7, H9, hES2, and hES3 cell lines and their respective subclones (H9.1, H9.2) [24,26,28,29,31]. Differences in cardiac myocyte yield from ES-cells do not on ...
... equal differentiation capacities. Most experiments on cardiac differentiation have been performed with murine D3 and R1 cell lines or human H1, H7, H9, hES2, and hES3 cell lines and their respective subclones (H9.1, H9.2) [24,26,28,29,31]. Differences in cardiac myocyte yield from ES-cells do not on ...
Cardiac Cycle - Just In Time Medicine
... First, draw in the correct locations of the cardiac valves, and label with them with correct anatomical names: ...
... First, draw in the correct locations of the cardiac valves, and label with them with correct anatomical names: ...
Lecture 56: Development of Heart II
... electrical depolarizations at a faster rate than cardiac myocytes in other regions. • B. As dextral looping occurs, sinus venous becomes incorporated into right atrium, and these fast-rate depolarizing cardiac myocytes become sinoatrial (SA) node and atrioventricular (AV) node. • C. In the adult, th ...
... electrical depolarizations at a faster rate than cardiac myocytes in other regions. • B. As dextral looping occurs, sinus venous becomes incorporated into right atrium, and these fast-rate depolarizing cardiac myocytes become sinoatrial (SA) node and atrioventricular (AV) node. • C. In the adult, th ...
Brianne Connizzo
... continuum in that there are many sports that are both anaerobic and aerobic. Sports that are solely aerobic are those that involve periods of prolonged activity like long-distance running. Anaerobic activities involve short bursts of energy in which the presence of oxygen is not needed to produce th ...
... continuum in that there are many sports that are both anaerobic and aerobic. Sports that are solely aerobic are those that involve periods of prolonged activity like long-distance running. Anaerobic activities involve short bursts of energy in which the presence of oxygen is not needed to produce th ...
Heart Rate Variability as an Index of Regulated
... interbeat intervals. Obtaining a series of interbeat intervals requires a continuous measure of heart rate, typically electrocardiography (ECG). A simple lead II configuration (electrodes on the right arm and left leg, plus a ground) is sufficient for HRV analysis. Data should be sampled at a rate r ...
... interbeat intervals. Obtaining a series of interbeat intervals requires a continuous measure of heart rate, typically electrocardiography (ECG). A simple lead II configuration (electrodes on the right arm and left leg, plus a ground) is sufficient for HRV analysis. Data should be sampled at a rate r ...
cardiovascular physiology and cardiopulmonary interactions
... Heart Rate Normal ranges for HR vary according to age / size of child. Cardiac output is equal to heart rate (HR) X stroke volume (SV). Therefore if the SV is fixed, the CO will increase in direct proportion to the HR. In small infants the SV does not show much variation over the usual physiologic r ...
... Heart Rate Normal ranges for HR vary according to age / size of child. Cardiac output is equal to heart rate (HR) X stroke volume (SV). Therefore if the SV is fixed, the CO will increase in direct proportion to the HR. In small infants the SV does not show much variation over the usual physiologic r ...
Normal ranges of left ventricular global longitudinal strain: a meta
... that the healthy female had a lower GLS compared to the healthy male. ...
... that the healthy female had a lower GLS compared to the healthy male. ...
Diagnosing primary diastolic heart failure
... measurements, an unreliable index of performance if not first normalized or corrected, with often substantial shifts in the timing of ventricular relaxation. Evaluation of ventricular relaxation should, therefore, include timing of this phase of the cardiac cycle with respect to the onset of systole ...
... measurements, an unreliable index of performance if not first normalized or corrected, with often substantial shifts in the timing of ventricular relaxation. Evaluation of ventricular relaxation should, therefore, include timing of this phase of the cardiac cycle with respect to the onset of systole ...
paradoxical splitting of the second heart sound - Heart
... The second heart sound is caused by closure of the aortic-and pulmonary valves at the end of ventricular systole. Two components, from the separate closure of the two valves, are usually audible because of slight asynchrony of the two ventricles, aortic closure preceding pulmonary closure in normal ...
... The second heart sound is caused by closure of the aortic-and pulmonary valves at the end of ventricular systole. Two components, from the separate closure of the two valves, are usually audible because of slight asynchrony of the two ventricles, aortic closure preceding pulmonary closure in normal ...
Print - Circulation
... The cardiovascular disease most commonly identified was hypertrophic cardiomyopathy, which was present in 14 athletes (figs. 1 and 2; table 2). Each of these patients had a hypertrophied, nondilated left ventricle in the absence of another cardiac or systemic disease that could produce left ventricu ...
... The cardiovascular disease most commonly identified was hypertrophic cardiomyopathy, which was present in 14 athletes (figs. 1 and 2; table 2). Each of these patients had a hypertrophied, nondilated left ventricle in the absence of another cardiac or systemic disease that could produce left ventricu ...
Therapy of CHF, Outline Slides
... Diagnosis and Evaluation of of CHF: Clinical Challenge The symptoms and signs of heart failure like shortness of breath and edema have a broad differential diagnosis The physical exam is neither sensitive nor specific for volume overload and, even in good hands, there are often errors. Chest ...
... Diagnosis and Evaluation of of CHF: Clinical Challenge The symptoms and signs of heart failure like shortness of breath and edema have a broad differential diagnosis The physical exam is neither sensitive nor specific for volume overload and, even in good hands, there are often errors. Chest ...
Beyond the Mitral Inflow - Society of Cardiovascular Anesthesiologists
... the evaluation of left ventricular diastolic function by echocardiography (1). Its direct application in the perioperative period is questionable for several reasons. Most validation studies were performed on awake ...
... the evaluation of left ventricular diastolic function by echocardiography (1). Its direct application in the perioperative period is questionable for several reasons. Most validation studies were performed on awake ...
publication
... stimulating electrodes were implanted circumferentially around both carotid sinuses and connected to the implantable pulse generator. Efficacy of the stimulation algorithm and proper placement of the electrodes were confirmed at the time of surgery by 3 to 4 acute stimulation ...
... stimulating electrodes were implanted circumferentially around both carotid sinuses and connected to the implantable pulse generator. Efficacy of the stimulation algorithm and proper placement of the electrodes were confirmed at the time of surgery by 3 to 4 acute stimulation ...
Measurement of cardiovascular function using a
... respectively. These advances provide substantial benefit for small animal cardiac PET imaging; however, the use of high temporal resolution PET techniques as previously described [11] (i.e., 0.3 s/frame) will sacrifice the spatial resolution gain achieved through the rotating gantry design. Therefor ...
... respectively. These advances provide substantial benefit for small animal cardiac PET imaging; however, the use of high temporal resolution PET techniques as previously described [11] (i.e., 0.3 s/frame) will sacrifice the spatial resolution gain achieved through the rotating gantry design. Therefor ...
AHEART August 46/2 - AJP
... CHAOS THEORY, referring to the overlapping mathematical disciplines of fractal geometry and nonlinear dynamics, has been used to provide insight into the pathophysiology and prognostic importance of cardiac arrhythmias (2–5, 8, 22, 23). In the mathematical sense, ‘‘chaos’’ refers to a system that is ...
... CHAOS THEORY, referring to the overlapping mathematical disciplines of fractal geometry and nonlinear dynamics, has been used to provide insight into the pathophysiology and prognostic importance of cardiac arrhythmias (2–5, 8, 22, 23). In the mathematical sense, ‘‘chaos’’ refers to a system that is ...
Arrhythmic risk stratification of post–myocardial infarction patients
... evaluating frequency and complexity of premature ventricular contractions, detected on Holter monitoring, often in association with determination of percent ejection fraction. This methodology has been proven to be limited and fallacious according to the Cardiac Arrhythmia Suppression Trial I and II ...
... evaluating frequency and complexity of premature ventricular contractions, detected on Holter monitoring, often in association with determination of percent ejection fraction. This methodology has been proven to be limited and fallacious according to the Cardiac Arrhythmia Suppression Trial I and II ...
C11.2 PPT - Destiny High School
... • The electrical impulse travels to the left atrium and goes through the atrioventricular node (AV Node) • Once the electrical impulse leaves the AV node, it is carried through conducting fibers called the bundle of His. ...
... • The electrical impulse travels to the left atrium and goes through the atrioventricular node (AV Node) • Once the electrical impulse leaves the AV node, it is carried through conducting fibers called the bundle of His. ...
Contraindications to magnetic resonance imaging
... However, the results of various studies indicate that these devices are safe when patients are examined using magnets of 1.5 T or less.17 w24 For information on a specific product, reference should be made to the manufacturer’s information and to dedicated websites (box 1). The same holds true for d ...
... However, the results of various studies indicate that these devices are safe when patients are examined using magnets of 1.5 T or less.17 w24 For information on a specific product, reference should be made to the manufacturer’s information and to dedicated websites (box 1). The same holds true for d ...
Simultaneous three-dimensional myocardial T1 QALAS
... with surrounding tissue. Recently it has become feasible to obtain a quantitative measurement of the signal intensity corresponding to the absolute value of the longitudinal relaxation (T1), transverse relaxation (T2) and proton density in many organs [1]. This enables numerical comparison between d ...
... with surrounding tissue. Recently it has become feasible to obtain a quantitative measurement of the signal intensity corresponding to the absolute value of the longitudinal relaxation (T1), transverse relaxation (T2) and proton density in many organs [1]. This enables numerical comparison between d ...
Intraoperative Recording of Specialized Atrioventricular Conduction
... probe 3-5 mm in diameter, with three biopolar pairs of electrodes (1 mm apart). The patients' esophageal temperatures were maintained between 30-37°C. Each bipolar pair of electrodes was connected to a Hewlett-Packard high impedance differential amplifier (MN8811 A) and was isolated from both ground ...
... probe 3-5 mm in diameter, with three biopolar pairs of electrodes (1 mm apart). The patients' esophageal temperatures were maintained between 30-37°C. Each bipolar pair of electrodes was connected to a Hewlett-Packard high impedance differential amplifier (MN8811 A) and was isolated from both ground ...
Evaluating Heart Rate and Lying Behaviour to Predict Calving of
... Heart rate measurements were done using the Polar® heart rate monitors S810i and equine electrodes fixed with a customized elastic belt. The electrodes were placed on the left part of the cow’s body, right behind the withers. The routine work like measuring rectal temperature and scoring of pelvic l ...
... Heart rate measurements were done using the Polar® heart rate monitors S810i and equine electrodes fixed with a customized elastic belt. The electrodes were placed on the left part of the cow’s body, right behind the withers. The routine work like measuring rectal temperature and scoring of pelvic l ...
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.