Global Cardiovascular Reserve Dysfunction in Heart
... where higher values indicate more severe symptoms (7). Cardiovascular function and reserve analysis. EchoDoppler measurements represent the mean of ⱖ3 beats. The left ventricular (LV) mass was obtained from 2-dimensional measurements of wall thickness and chamber dimension (8). The EF was determined ...
... where higher values indicate more severe symptoms (7). Cardiovascular function and reserve analysis. EchoDoppler measurements represent the mean of ⱖ3 beats. The left ventricular (LV) mass was obtained from 2-dimensional measurements of wall thickness and chamber dimension (8). The EF was determined ...
Left ventricular diastolic collapse in regional left heart
... right ventricular diastolic collapse has been associated with a significant reduction in cardiac output without substantial changes in blood pressure . It has been hypothesized (19) that the left ventricle does not demonstrate this motion because of its greater thickness md its symmetric shape . How ...
... right ventricular diastolic collapse has been associated with a significant reduction in cardiac output without substantial changes in blood pressure . It has been hypothesized (19) that the left ventricle does not demonstrate this motion because of its greater thickness md its symmetric shape . How ...
Annual Conference and Exhibition Programme
... to our Affiliated Groups track and the National Training Day. I hope this new format will provide a programme structure even more suited to delegates’ future needs. The clinical/translational science sessions have the moderated posters embedded within them, themed to the linked plenary sessions. Pos ...
... to our Affiliated Groups track and the National Training Day. I hope this new format will provide a programme structure even more suited to delegates’ future needs. The clinical/translational science sessions have the moderated posters embedded within them, themed to the linked plenary sessions. Pos ...
Myocarditis Presenting with Ventricular Arrhythmias
... Cardiac symptoms that develop during myocarditis may follow after a delay of days to weeks from the beginning of the pathological process; they are quite unspecific and include fatigue, dyspnoea, palpitations, malaise and atypical chest discomfort. Even the clinical cardiac signs may be vague in man ...
... Cardiac symptoms that develop during myocarditis may follow after a delay of days to weeks from the beginning of the pathological process; they are quite unspecific and include fatigue, dyspnoea, palpitations, malaise and atypical chest discomfort. Even the clinical cardiac signs may be vague in man ...
Cardiac Pacing - Patient Management
... Note: At all times, whenever possible, all patients with external pacing should be managed within a “cardiac protected” patient treatment area. A "cardiac protected" patient treatment area is one identified by a green sign with a white heart symbol in a white box. This is to reduce the risk of micro ...
... Note: At all times, whenever possible, all patients with external pacing should be managed within a “cardiac protected” patient treatment area. A "cardiac protected" patient treatment area is one identified by a green sign with a white heart symbol in a white box. This is to reduce the risk of micro ...
Interventricular Septal Thickness and Left Ventricular Hypertrophy
... SUMMARY Septal and left ventricular posterior wall (LVPW) thicknesses and their ratios were studied at the left ventricular outflow tract and left ventricular cavity in 66 patients with echocardiographically diagnosed left ventricular concentric hypertrophy, 20 with idiopathic hypertrophic subaortic ...
... SUMMARY Septal and left ventricular posterior wall (LVPW) thicknesses and their ratios were studied at the left ventricular outflow tract and left ventricular cavity in 66 patients with echocardiographically diagnosed left ventricular concentric hypertrophy, 20 with idiopathic hypertrophic subaortic ...
The impact of age on cardiac excitation
... Dalhousie University, Halifax, Nova Scotia, Canada B3H 1X5 ...
... Dalhousie University, Halifax, Nova Scotia, Canada B3H 1X5 ...
TASER® Electronic Control Devices Review of Safety Literature
... Q. Is there any danger from an ECD to a person with a pacemaker or an implantable defibrillator? In general, no. There is no risk with an implantable defibrillator. There is a theoretical tiny risk for someone with certain older pacemaker models but no such ECD induced injury has ever been recorded. ...
... Q. Is there any danger from an ECD to a person with a pacemaker or an implantable defibrillator? In general, no. There is no risk with an implantable defibrillator. There is a theoretical tiny risk for someone with certain older pacemaker models but no such ECD induced injury has ever been recorded. ...
7 The Pericardium
... and may help preserve left ventricular systolic function as measured by left ventricular +dP/dt following transplantation, but that these relative effects were not equivalent for both ventricles. The nonsymmetrical results between the left and right ventricles under constant filling preload and afte ...
... and may help preserve left ventricular systolic function as measured by left ventricular +dP/dt following transplantation, but that these relative effects were not equivalent for both ventricles. The nonsymmetrical results between the left and right ventricles under constant filling preload and afte ...
Murmurs in children - Pediatric Associates of Newnan
... Heart murmurs are one of the most common physical findings in any practice that cares for children 50-60% of children have a heart murmur Over 90% of heart murmurs are normal and require no further evaluation/referral termed “innocent,” “functional,” “benign,” or “physiologic” ...
... Heart murmurs are one of the most common physical findings in any practice that cares for children 50-60% of children have a heart murmur Over 90% of heart murmurs are normal and require no further evaluation/referral termed “innocent,” “functional,” “benign,” or “physiologic” ...
The Use of Digoxin in Patients With Worsening Chronic Heart Failure
... Groningen, the Netherlands; and Chicago, Illinois Digoxin is the oldest cardiac drug still in contemporary use, yet its role in the management of patients with heart failure (HF) remains controversial. A purified cardiac glycoside derived from the foxglove plant, digoxin increases ejection fraction, ...
... Groningen, the Netherlands; and Chicago, Illinois Digoxin is the oldest cardiac drug still in contemporary use, yet its role in the management of patients with heart failure (HF) remains controversial. A purified cardiac glycoside derived from the foxglove plant, digoxin increases ejection fraction, ...
Role of catheter-induced mechanical trauma in localization of target
... recorded by the distal pair of the exploring catheter electrodes, and the beginning of the P wave on the surface electrocardiogram (AP interval) during atrial tachycardia. The site characterized by the longest AP interval, with an AP interval ->30 ms, was considered as the ideal atrial ablation site ...
... recorded by the distal pair of the exploring catheter electrodes, and the beginning of the P wave on the surface electrocardiogram (AP interval) during atrial tachycardia. The site characterized by the longest AP interval, with an AP interval ->30 ms, was considered as the ideal atrial ablation site ...
Cardiac Resynchronization in Heart
... in some cases, and increased stroke volume and cardiac output. Nishimura et al.22 performed hemodynamic studies during DDD pacing at various AV delays in 15 patients with LVEF less than 19%. Four patients had LBBB, 1 had RBBB, and 2 were paced. In 8 patients with a PR interval of more than 200 ms, A ...
... in some cases, and increased stroke volume and cardiac output. Nishimura et al.22 performed hemodynamic studies during DDD pacing at various AV delays in 15 patients with LVEF less than 19%. Four patients had LBBB, 1 had RBBB, and 2 were paced. In 8 patients with a PR interval of more than 200 ms, A ...
Severely ectatic left circumflex coronary artery with fistula to
... literature review a total of 14 cases of LCX to CS fistula were reported [6]. Most of these cases were found incidentally in male and most common presentation was either dysnpnea on exertion or chest pain, rarely can remain asymptomatic. Two cases involved inferior and inferolateral myocardial infar ...
... literature review a total of 14 cases of LCX to CS fistula were reported [6]. Most of these cases were found incidentally in male and most common presentation was either dysnpnea on exertion or chest pain, rarely can remain asymptomatic. Two cases involved inferior and inferolateral myocardial infar ...
Closure of atrial septal defect in the adult. Cardiac remodeling is an
... frequency of atrial fibrillation among them compared to normotensives (67 % vs 30 %, p=0.06). No patient had a history of myocardial infarction or angina pectoris. Pre-closure stress test was performed in 23 of the 39 patients without findings making ischemic heart disease likely. The majority of th ...
... frequency of atrial fibrillation among them compared to normotensives (67 % vs 30 %, p=0.06). No patient had a history of myocardial infarction or angina pectoris. Pre-closure stress test was performed in 23 of the 39 patients without findings making ischemic heart disease likely. The majority of th ...
R P V C
... o Residual ventricular septal defect with a left-to-right shunt greater than 1.5:1 o Severe aortic regurgitation with associated symptoms or more than mild LV dysfunction o A combination of multiple residual lesions leading to RV enlargement or dysfunction ...
... o Residual ventricular septal defect with a left-to-right shunt greater than 1.5:1 o Severe aortic regurgitation with associated symptoms or more than mild LV dysfunction o A combination of multiple residual lesions leading to RV enlargement or dysfunction ...
Cardiac Remodeling in Obesity
... patients; but higher again in more severely obese patients (85, 126). It has also been posited that more intense treatment regimens are applied in obese patients and that this might explain their increased survival post-MI (85). However, this seems doubtful given the widely accepted and well-publici ...
... patients; but higher again in more severely obese patients (85, 126). It has also been posited that more intense treatment regimens are applied in obese patients and that this might explain their increased survival post-MI (85). However, this seems doubtful given the widely accepted and well-publici ...
cardiac rhythm and atrial transport function after surgical ablation of
... Key words: Atrial fibrillation/Maze procedure/Cryoablation/Arrhythmia surgery/Atrial transport function Aim. The aim of this prospective study was to assess the presence of sinus rhythm and atrial transport function after surgical ablation of atrial fibrillation using cryoenergy, and to evaluate pre ...
... Key words: Atrial fibrillation/Maze procedure/Cryoablation/Arrhythmia surgery/Atrial transport function Aim. The aim of this prospective study was to assess the presence of sinus rhythm and atrial transport function after surgical ablation of atrial fibrillation using cryoenergy, and to evaluate pre ...
Robo1 - Circulation Research
... caval veins was much thicker in Slit3−/− embryos, but no missing parts were observed (Figure 3B and 3C). These data suggest that Slit3 acts as the main ligand required by Robo1 and Robo2 in regulating the formation of the region. However, the absence of pericardial defects in Slit3 mutants indicates ...
... caval veins was much thicker in Slit3−/− embryos, but no missing parts were observed (Figure 3B and 3C). These data suggest that Slit3 acts as the main ligand required by Robo1 and Robo2 in regulating the formation of the region. However, the absence of pericardial defects in Slit3 mutants indicates ...
Effect of healthy aging on left ventricular relaxation and - AJP
... metroplex and a diverse health care company. All subjects were nonsmokers, were not taking any cardiovascular medications, had a 24-h blood pressure ⬍140/90 mmHg, body mass index ⱕ30 kg/m2, and had a normal electrocardiogram and exercise stress echocardiogram. Subjects were either sedentary or casua ...
... metroplex and a diverse health care company. All subjects were nonsmokers, were not taking any cardiovascular medications, had a 24-h blood pressure ⬍140/90 mmHg, body mass index ⱕ30 kg/m2, and had a normal electrocardiogram and exercise stress echocardiogram. Subjects were either sedentary or casua ...
cardiac potassium channel subtypes: new roles in repolarization
... thus performs ⬃100,000 successful and coordinated contractions every day. These contractions are controlled by electrical signals, known as action potentials, which trigger an intracellular signaling pathway referred to as the excitation-contraction coupling leading to the muscle contraction (41). T ...
... thus performs ⬃100,000 successful and coordinated contractions every day. These contractions are controlled by electrical signals, known as action potentials, which trigger an intracellular signaling pathway referred to as the excitation-contraction coupling leading to the muscle contraction (41). T ...
Document
... populations include upper dimensions previously regarded as abnormal. Doppler measurements and derived values should be listed. Text This should include a description of observations made in a logical order. The order will vary for the operator and the study. The most important feature might be desc ...
... populations include upper dimensions previously regarded as abnormal. Doppler measurements and derived values should be listed. Text This should include a description of observations made in a logical order. The order will vary for the operator and the study. The most important feature might be desc ...
Potential Changes Attending the Excitation Process in the
... aorta. The shaft of the needle was then arched against the aorta, permitting the tip to slide over the cartilaginous ring into the tissue forming the crest of the septum. The majority of nodal potentials were obtained by exposing the posterior surface of the right ventricle through an incision in th ...
... aorta. The shaft of the needle was then arched against the aorta, permitting the tip to slide over the cartilaginous ring into the tissue forming the crest of the septum. The majority of nodal potentials were obtained by exposing the posterior surface of the right ventricle through an incision in th ...
Y.Q. Zhou, F.S. Foster, R. Parkes, S.L. Adamson. Developmental
... from 4 to 12 wk of age. Postnatal mice were anesthetized as described above for pregnant mice. Heart rate and body temperature were monitored as above in the postweaning group. Heat and anesthetic settings were the same in the neonatal and preweaning groups, but heart rate and body temperature were ...
... from 4 to 12 wk of age. Postnatal mice were anesthetized as described above for pregnant mice. Heart rate and body temperature were monitored as above in the postweaning group. Heat and anesthetic settings were the same in the neonatal and preweaning groups, but heart rate and body temperature were ...
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.