Procedure Guidelines for Radionuclide Myocardial Perfusion Imaging
... exercise tolerance, symptoms and ECG changes during dynamic exercise are not required (table 1). It has the advantages of speed, reliability and reproducibility, but the disadvantages that it is not possible to monitor the adequacy of stress and it is not equivalent to physiological stress experienc ...
... exercise tolerance, symptoms and ECG changes during dynamic exercise are not required (table 1). It has the advantages of speed, reliability and reproducibility, but the disadvantages that it is not possible to monitor the adequacy of stress and it is not equivalent to physiological stress experienc ...
Assessment of Regional Left Ventricular Wall Motion Abnormalities
... for assessment of regional left ventricular（LV）wall motion abnormalities and global LV function, using left ventriculography（LVG）as a gold standard. Methods： Forty-three patients（25 men；mean age, 64.4±16.9 years）with confirmed or suspected coronar y arter y disease（CAD）under went cardiac DSCT and in ...
... for assessment of regional left ventricular（LV）wall motion abnormalities and global LV function, using left ventriculography（LVG）as a gold standard. Methods： Forty-three patients（25 men；mean age, 64.4±16.9 years）with confirmed or suspected coronar y arter y disease（CAD）under went cardiac DSCT and in ...
1443 Final Protocol - Medical Services Advisory Committee
... Following the documentation of an AF episode, the ILR continues to provide ongoing heart rhythm information that enables: ...
... Following the documentation of an AF episode, the ILR continues to provide ongoing heart rhythm information that enables: ...
Relations between heart failure, ejection fraction, arrhythmia
... by quantitative means (left ventricular ejection fraction) or clinical assessment by functional class of heart failure (1-5). Previous studies (1,3) have identified ventricular arrhythmias as an independent predictor of sudden death and total cardiovascular mortality after myocardial infarction. How ...
... by quantitative means (left ventricular ejection fraction) or clinical assessment by functional class of heart failure (1-5). Previous studies (1,3) have identified ventricular arrhythmias as an independent predictor of sudden death and total cardiovascular mortality after myocardial infarction. How ...
beta blockers in cardioprotection after acute myocardial infarction
... cardial infarction. In acute phase of the myocardial infarction beta blockers are indicated in the presence of the hypercinetic syndrome. Beta blockers may be given as cardioprotective agents as early as stabile hemodynamic condition are achieved after onset of myocardial infarction at third day or ...
... cardial infarction. In acute phase of the myocardial infarction beta blockers are indicated in the presence of the hypercinetic syndrome. Beta blockers may be given as cardioprotective agents as early as stabile hemodynamic condition are achieved after onset of myocardial infarction at third day or ...
angina
... Examination of the blood should include measurements of lipids (cholesterol—total, low density, and high density), glucose, creatinine, hematocrit, and, if indicated based on the physical examination, thyroid function. The urine should be examined for evidence of diabetes mellitus and renal disease ...
... Examination of the blood should include measurements of lipids (cholesterol—total, low density, and high density), glucose, creatinine, hematocrit, and, if indicated based on the physical examination, thyroid function. The urine should be examined for evidence of diabetes mellitus and renal disease ...
Title Page - Adolescent Health
... QTc ≥500 ms (marked QT prolongation) Short QT interval* QTc ≤320 ms Brugada-like ECG pattern High take-off and downsloping ST segment elevation followed by a negative T wave in ≥2 leads in V1–V3 Profound sinus bradycardia <30 bpm or sinus pauses ≥3 s Atrial tachyarrhythmias Supraventricular tachycar ...
... QTc ≥500 ms (marked QT prolongation) Short QT interval* QTc ≤320 ms Brugada-like ECG pattern High take-off and downsloping ST segment elevation followed by a negative T wave in ≥2 leads in V1–V3 Profound sinus bradycardia <30 bpm or sinus pauses ≥3 s Atrial tachyarrhythmias Supraventricular tachycar ...
Heart Failure Indicator Review
... • Outcomes for Class I and II (mild) Heart Failure patients are very different from Class III (moderate) and Class IV (severe) Heart Failure patients. • Indicator definition is unable to adjust for end stage (Stage IV) heart failure as severity is unable to be identified from data collection. • ...
... • Outcomes for Class I and II (mild) Heart Failure patients are very different from Class III (moderate) and Class IV (severe) Heart Failure patients. • Indicator definition is unable to adjust for end stage (Stage IV) heart failure as severity is unable to be identified from data collection. • ...
A novel role for cardiac neural crest in heart development
... themselves should cause ventricular function to be altered, similar to neural crest ablation. Leatherbury and Connuck made lesions in the right pharyngeal wall prior to formation of pharyngeal arches 3 and 4, which caused a diminished number of right aortic arch arteries to form. The left aortic arc ...
... themselves should cause ventricular function to be altered, similar to neural crest ablation. Leatherbury and Connuck made lesions in the right pharyngeal wall prior to formation of pharyngeal arches 3 and 4, which caused a diminished number of right aortic arch arteries to form. The left aortic arc ...
... CHAM is one of the nation’s top hospitals for children, earning the distinction of being included in U.S. News and World Report’s “Best Children’s Hospitals” rankings for the third consecutive year. In this issue, we have highlighted some of our capabilities such as advances in electrophysiology and ...
pulmonary circulation
... Pathological physiology of cardiovascular system Congenital heart diseases Rácz Oliver, Sedláková Eva Institute of Pathological Physiology, Medical School, P.J. Šafárik University © Oliver Rácz, Eva Sedláková 2011 - 2017 ...
... Pathological physiology of cardiovascular system Congenital heart diseases Rácz Oliver, Sedláková Eva Institute of Pathological Physiology, Medical School, P.J. Šafárik University © Oliver Rácz, Eva Sedláková 2011 - 2017 ...
cardiology - Turner White
... tamponade such as jugular venous distention, quiet heart sounds, and pulsus paradoxus. In these patients, the appropriate imaging modality is needed for a correct and quick diagnosis.14,15 A high index of suspicion for cardiac tamponade is required because right ventricular myocardial infarction and ...
... tamponade such as jugular venous distention, quiet heart sounds, and pulsus paradoxus. In these patients, the appropriate imaging modality is needed for a correct and quick diagnosis.14,15 A high index of suspicion for cardiac tamponade is required because right ventricular myocardial infarction and ...
Physiological systolic and diastolic changes of the left and right
... a basis for comparison to stress echo values in patients with pulmonary hypertension to characterize their right heart limitations or their right heart reserve under exercise conditions, and in patients of an incipient diastolic heart failure to help physicians for their therapeutic decisions. ...
... a basis for comparison to stress echo values in patients with pulmonary hypertension to characterize their right heart limitations or their right heart reserve under exercise conditions, and in patients of an incipient diastolic heart failure to help physicians for their therapeutic decisions. ...
stroke volume during incremental exercise Heart rate deflection
... reproducibility in 9 out of 15 well-trained male distance runners who performed a treadmill simulation of the Conconi test protocol. Therefore, HRDP was not demonstrated in a considerable number of highly trained endurance athletes, whereas their HR response was curvilinear during the incremental ex ...
... reproducibility in 9 out of 15 well-trained male distance runners who performed a treadmill simulation of the Conconi test protocol. Therefore, HRDP was not demonstrated in a considerable number of highly trained endurance athletes, whereas their HR response was curvilinear during the incremental ex ...
The slow mo mutation reduces pacemaker current and heart rate in
... pacemaking in the intact animal comes from the mutation slow mo. We discovered this mutation as part of a large-scale zebrafish genetic screen. The homozygous slow mo fish has a slow heart rate (sinus bradycardia) evident from the first heartbeats (3). This is the only noticeable effect of the mutat ...
... pacemaking in the intact animal comes from the mutation slow mo. We discovered this mutation as part of a large-scale zebrafish genetic screen. The homozygous slow mo fish has a slow heart rate (sinus bradycardia) evident from the first heartbeats (3). This is the only noticeable effect of the mutat ...
Quantification and Visualization of Cardiovascular Function using
... and nonlinear relationships among a large number of cardiovascular variables [1]. There is a considerable amount of publications in this field and cardiac mechanics and the pumping function of the heart have been differently described over the years. However, the function of this substantial organ, ...
... and nonlinear relationships among a large number of cardiovascular variables [1]. There is a considerable amount of publications in this field and cardiac mechanics and the pumping function of the heart have been differently described over the years. However, the function of this substantial organ, ...
A rare case of cardiac anomaly: prenatally diagnosed ectopia cordis
... Complete ectopia cordis is defined as the heart being located outside the thoracic cavity without an overlaying pericardial sac and partial ectopia cordis is defined as the heart being located outside the thoracic cavity covered with pericardium and skin (7). Our patient had complete ectopia cordis. ...
... Complete ectopia cordis is defined as the heart being located outside the thoracic cavity without an overlaying pericardial sac and partial ectopia cordis is defined as the heart being located outside the thoracic cavity covered with pericardium and skin (7). Our patient had complete ectopia cordis. ...
Short Communication A gross anatomical study of pulmonary valve
... horizontally aligned rim or free margin. The lateral attachments of the cusps form commissures, each being the junction between two adjacent leaflets. [8] The three semilunar cusps are termed as anterior, right posterior and left posterior. [9] The interest in the morphology of cardiac valves, which ...
... horizontally aligned rim or free margin. The lateral attachments of the cusps form commissures, each being the junction between two adjacent leaflets. [8] The three semilunar cusps are termed as anterior, right posterior and left posterior. [9] The interest in the morphology of cardiac valves, which ...
Pharmacology Objectives 9
... concentration. Plasma digoxin concentration is not extremely useful because there isn’t a clear value for toxic blood concentration. This is because other factors such as serum K+ concentration, when low, will result in digoxin toxicity at serum digoxin levels that would otherwise be “therapeutic”. ...
... concentration. Plasma digoxin concentration is not extremely useful because there isn’t a clear value for toxic blood concentration. This is because other factors such as serum K+ concentration, when low, will result in digoxin toxicity at serum digoxin levels that would otherwise be “therapeutic”. ...
MRI Anatomy and Positioning Series
... heart. This size difference is related to their functions and the size of the two circulatory loops. ...
... heart. This size difference is related to their functions and the size of the two circulatory loops. ...
Chronic Atrial Fibrillation - American Academy of Family Physicians
... effective than digoxin for controlling symptoms of chronic atrial fibrillation, but very few trials have been done. When a beta blocker alone is ineffective, current consensus supports the addition of digoxin. Current consensus is that calcium channel blockers are more effective than digoxin for con ...
... effective than digoxin for controlling symptoms of chronic atrial fibrillation, but very few trials have been done. When a beta blocker alone is ineffective, current consensus supports the addition of digoxin. Current consensus is that calcium channel blockers are more effective than digoxin for con ...
Commotio Cordis
... Commercially available chest protectors may be inadequate in the prevention of sudden death due to commotio cordis. Reasons include the fact that the protector may move when the arms are raised, leaving the precordium exposed composite material the protector is made from does not adequately attenuat ...
... Commercially available chest protectors may be inadequate in the prevention of sudden death due to commotio cordis. Reasons include the fact that the protector may move when the arms are raised, leaving the precordium exposed composite material the protector is made from does not adequately attenuat ...
Relationship of the Pulmonary Artery End
... The relationship of the left ventricular end-diastolic pressure (LVEDP) and the pulmonary arterial "wedge" mean pressure (PAWMP) to the pulmonary artery enddiastolic pressure (PAEDP) was investigated by cardiac catheterization in 71 subjects. Pressure records were obtained simultaneously or immediat ...
... The relationship of the left ventricular end-diastolic pressure (LVEDP) and the pulmonary arterial "wedge" mean pressure (PAWMP) to the pulmonary artery enddiastolic pressure (PAEDP) was investigated by cardiac catheterization in 71 subjects. Pressure records were obtained simultaneously or immediat ...
Print - Circulation
... for transposition of the great arteries with ventricular septal defect or double outlet right or left ventricle. There were three hospital deaths (4.8%), and no deaths occurred in neonates (<1 month of age, n = 18). There were three late deaths, one due to coronary obstruction and two due to pulmona ...
... for transposition of the great arteries with ventricular septal defect or double outlet right or left ventricle. There were three hospital deaths (4.8%), and no deaths occurred in neonates (<1 month of age, n = 18). There were three late deaths, one due to coronary obstruction and two due to pulmona ...
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.