AHA/ACC/HRS Practice Guideline
... as well as evidence and/or agreement that a given treatment or procedure is or is not useful/effective or in some situations may cause harm; this is defined in Table 1. The Level of Evidence (LOE) is an estimate of the certainty or precision of the treatment effect. The writing committee reviews and ...
... as well as evidence and/or agreement that a given treatment or procedure is or is not useful/effective or in some situations may cause harm; this is defined in Table 1. The Level of Evidence (LOE) is an estimate of the certainty or precision of the treatment effect. The writing committee reviews and ...
A STUDY OF THE PATHOLOGY AND PATHOGENSIS OF MYOCARDIAL
... cases. In two sheep cardiac dilatation was associated with subendocardial pallor (fibrosis) and transmural myocardial mottling. Myofibre hypertrophy was recorded in all the sheep, myofibre necrosis and replacement fibrosis occurred in seven animals the latter being particularly evident in animals w ...
... cases. In two sheep cardiac dilatation was associated with subendocardial pallor (fibrosis) and transmural myocardial mottling. Myofibre hypertrophy was recorded in all the sheep, myofibre necrosis and replacement fibrosis occurred in seven animals the latter being particularly evident in animals w ...
Kinematic Characterization of Left Ventricular Chamber Stiffness
... Mossahebi, Sina, "Kinematic Characterization of Left Ventricular Chamber Stiffness and Relaxation" (2014). All Theses and Dissertations (ETDs). 1327. http://openscholarship.wustl.edu/etd/1327 ...
... Mossahebi, Sina, "Kinematic Characterization of Left Ventricular Chamber Stiffness and Relaxation" (2014). All Theses and Dissertations (ETDs). 1327. http://openscholarship.wustl.edu/etd/1327 ...
Normal and Abnormal Coronary Artery Anatomy: Is it
... to the margin just before the RCA bends round the right ventricle it gives off the acute marginal branch (Fig 1 & 2) which supplies the anterior wall of the right ventricle. The RCA bends sharply at the margin to travel along the posterior surface of the heart. In 80-85% of patients the RCA gives of ...
... to the margin just before the RCA bends round the right ventricle it gives off the acute marginal branch (Fig 1 & 2) which supplies the anterior wall of the right ventricle. The RCA bends sharply at the margin to travel along the posterior surface of the heart. In 80-85% of patients the RCA gives of ...
Pradyot Saklani, Andrew Krahn and George Klein Syncope doi
... as well as to distinguish between seizures and syncope.28 A point scoring system considers both the presence and absence of key historical features in coming to a diagnosis. Key historical features, although not intended for interpretation in isolation, are listed in Table 3. The physical examinatio ...
... as well as to distinguish between seizures and syncope.28 A point scoring system considers both the presence and absence of key historical features in coming to a diagnosis. Key historical features, although not intended for interpretation in isolation, are listed in Table 3. The physical examinatio ...
Helen brooke taussig: 1898 to 1986
... Drs. Taussig and Blalock adjusted to this tremendous inAlthough she stepped down from the leadership role at crease in patients needing diagnosis and treatment. Wisely, her Cardiac Clinic in 1963, her scientific activities and her they dividedresponsibilitiesas they collaborated. Dr. Tausadvocacyof ...
... Drs. Taussig and Blalock adjusted to this tremendous inAlthough she stepped down from the leadership role at crease in patients needing diagnosis and treatment. Wisely, her Cardiac Clinic in 1963, her scientific activities and her they dividedresponsibilitiesas they collaborated. Dr. Tausadvocacyof ...
Structural study of pulmonary circulation and of heart in total
... Quantitative morphometric techniques have been applied to the injected and inflated lung and to the heart in 9 infants with total anomalous pulmonary venous return dying with obstruction to pulmonary venous return. In 5 (mean age at death 55 days) pulmonary venous blood drained to a supradiaphragmat ...
... Quantitative morphometric techniques have been applied to the injected and inflated lung and to the heart in 9 infants with total anomalous pulmonary venous return dying with obstruction to pulmonary venous return. In 5 (mean age at death 55 days) pulmonary venous blood drained to a supradiaphragmat ...
Task Force Report Guidelines on management (diagnosis and treatment) of syncope*
... and each was assigned the task of reviewing the literature on a specific topic and of developing a draft summarizing the issue. Each subgroup was to perform literature searches on MEDLINE and to supplement the search by documents from their personal collection. The panel reconvened in January 2000, ...
... and each was assigned the task of reviewing the literature on a specific topic and of developing a draft summarizing the issue. Each subgroup was to perform literature searches on MEDLINE and to supplement the search by documents from their personal collection. The panel reconvened in January 2000, ...
Mechanical Alternans in Patients With Chronic Heart Failure
... monary artery. A 5F pacing catheter was advanced to the right atrium in patients with sinus rhythm and to the right ventricle in patients with atrial fibrillation. Left ventricular pressure, the first derivatives of left ventricular pressure (dP/dt), and pulmonary artery pressure were recorded on a ch ...
... monary artery. A 5F pacing catheter was advanced to the right atrium in patients with sinus rhythm and to the right ventricle in patients with atrial fibrillation. Left ventricular pressure, the first derivatives of left ventricular pressure (dP/dt), and pulmonary artery pressure were recorded on a ch ...
Left Ventricular Eccentric Remodeling and Matrix Loss Are Mediated
... volume overload (1,2). During the compensated phase of volume overload, forward cardiac output is maintained by a greater-than-normal fractional shortening and stroke volume (2). In fact, normal or slightly reduced fractional shortSee page 822 ...
... volume overload (1,2). During the compensated phase of volume overload, forward cardiac output is maintained by a greater-than-normal fractional shortening and stroke volume (2). In fact, normal or slightly reduced fractional shortSee page 822 ...
atrial arrhythmogenesis during myocardial infarction
... Fibrillation After Myocardial Infarction ...................................................................................................... 95 ...
... Fibrillation After Myocardial Infarction ...................................................................................................... 95 ...
Atrial fibrillation - European Society of Cardiology
... coordinated atrial systole. This arrhythmia is characterized on the ECG by the absence of consistent P waves before each QRS complex; instead there are rapid oscillations of ‘f’ waves which vary in size, shape, and timing and there is usually an irregular ventricular rate[5]. However, the presence o ...
... coordinated atrial systole. This arrhythmia is characterized on the ECG by the absence of consistent P waves before each QRS complex; instead there are rapid oscillations of ‘f’ waves which vary in size, shape, and timing and there is usually an irregular ventricular rate[5]. However, the presence o ...
File
... The American College of Cardiology (ACC) and the American Heart Association (AHA) are committed to the prevention and management of cardiovascular diseases through professional education and research for clinicians, providers, and patients. Since 1980, the ACC and AHA have shared a responsibility to ...
... The American College of Cardiology (ACC) and the American Heart Association (AHA) are committed to the prevention and management of cardiovascular diseases through professional education and research for clinicians, providers, and patients. Since 1980, the ACC and AHA have shared a responsibility to ...
Coupling interval from slow to tachycardiac pacing - AJP
... generate sustained contractile alternans. We provided a variable coupling interval between the slow priming and tachycardiac periods as a sole independent variable. We performed similar runs only by changing the coupling interval in steps of 20–50 ms from 200 to 600 ms in each heart. Experimental pr ...
... generate sustained contractile alternans. We provided a variable coupling interval between the slow priming and tachycardiac periods as a sole independent variable. We performed similar runs only by changing the coupling interval in steps of 20–50 ms from 200 to 600 ms in each heart. Experimental pr ...
Pulmonary Venous Anomalies
... Sinus Venosus Defects: The true defect is the deficiency of the common wall between the right SVC and the right upper pulmonary vein or the wall between the right atrium and the right upper and lower pulmonary veins. ...
... Sinus Venosus Defects: The true defect is the deficiency of the common wall between the right SVC and the right upper pulmonary vein or the wall between the right atrium and the right upper and lower pulmonary veins. ...
Identification and Documentation of Environmental
... ‘views’ of the same set of assumptions, with each view being distinguished by a unique set of classification criteria. Therefore, in essence, the PACEMAKER project is merely a magnified case study, demonstrating the practicality of the documentation approaches that are proposed in this thesis, and t ...
... ‘views’ of the same set of assumptions, with each view being distinguished by a unique set of classification criteria. Therefore, in essence, the PACEMAKER project is merely a magnified case study, demonstrating the practicality of the documentation approaches that are proposed in this thesis, and t ...
Reduced reactive O2 species formation and preserved
... experiment, hearts were removed and ventricles cut into transverse sections of 3-mm thickness. These were stained with 0.1% 2,3,5-triphenyltetrazolium chloride and digitally imaged. Ventricular infarct size was measured in % by cumulative planimetry as described previously [6]. Repro- ...
... experiment, hearts were removed and ventricles cut into transverse sections of 3-mm thickness. These were stained with 0.1% 2,3,5-triphenyltetrazolium chloride and digitally imaged. Ventricular infarct size was measured in % by cumulative planimetry as described previously [6]. Repro- ...
Guidelines on the Diagnosis and Management of Pericardial Diseases
... Guidelines and Expert Consensus documents aim to present all the relevant evidence on a particular issue in order to help physicians to weigh the benefits and risks of a particular diagnostic or therapeutic procedure. They should be helpful in everyday clinical decision-making. A great number of Guid ...
... Guidelines and Expert Consensus documents aim to present all the relevant evidence on a particular issue in order to help physicians to weigh the benefits and risks of a particular diagnostic or therapeutic procedure. They should be helpful in everyday clinical decision-making. A great number of Guid ...
Guidelines on the Diagnosis and Management of Pericardial Diseases
... Guidelines and Expert Consensus documents aim to present all the relevant evidence on a particular issue in order to help physicians to weigh the benefits and risks of a particular diagnostic or therapeutic procedure. They should be helpful in everyday clinical decision-making. A great number of Guid ...
... Guidelines and Expert Consensus documents aim to present all the relevant evidence on a particular issue in order to help physicians to weigh the benefits and risks of a particular diagnostic or therapeutic procedure. They should be helpful in everyday clinical decision-making. A great number of Guid ...
The Effect of Tai Chi Chuan on the Autonomic Nervous Modulation
... Equipment and measurement. The sampling frequency for ECG recording was 200 Hz. R-wave detecting software was used to identify the peaks of the R waves in the recorded ECG signals and to measure the consecutive RR intervals. Sinus pause and arterial or ventricular arrhythmia were deleted, and the la ...
... Equipment and measurement. The sampling frequency for ECG recording was 200 Hz. R-wave detecting software was used to identify the peaks of the R waves in the recorded ECG signals and to measure the consecutive RR intervals. Sinus pause and arterial or ventricular arrhythmia were deleted, and the la ...
Exercise Standards for Testing and Training A Statement for
... especially with regard to footwear. No unusual physical efforts should be performed for at least 12 hours before testing. When exercise testing is performed for diagnostic purposes, withdrawal of medications may be considered because some drugs (especially -blockers) attenuate the exercise response ...
... especially with regard to footwear. No unusual physical efforts should be performed for at least 12 hours before testing. When exercise testing is performed for diagnostic purposes, withdrawal of medications may be considered because some drugs (especially -blockers) attenuate the exercise response ...
Simons-Morton, Mark A. Williams and Terry Bazzarre Jerome Fleg
... especially with regard to footwear. No unusual physical efforts should be performed for at least 12 hours before testing. When exercise testing is performed for diagnostic purposes, withdrawal of medications may be considered because some drugs (especially -blockers) attenuate the exercise response ...
... especially with regard to footwear. No unusual physical efforts should be performed for at least 12 hours before testing. When exercise testing is performed for diagnostic purposes, withdrawal of medications may be considered because some drugs (especially -blockers) attenuate the exercise response ...
Crawford Current Cardiology Edition 2
... The patient's history is a critical feature in the evaluation of suspected or overt heart disease. It includes information about the present illness, past illnesses, and the patient's family. From this information, a chronology of the patient's disease process should be constructed. Determining what ...
... The patient's history is a critical feature in the evaluation of suspected or overt heart disease. It includes information about the present illness, past illnesses, and the patient's family. From this information, a chronology of the patient's disease process should be constructed. Determining what ...
ACC/AHA Guidelines for the Management of Patients With Acute
... one randomized trial to another impose some limitation on the generalizability of their findings. Likewise, in its efforts to reconcile conflicting data, the committee emphasized the importance of properly characterizing the population under study. Not all patients diagnosed with AMI are alike. For ...
... one randomized trial to another impose some limitation on the generalizability of their findings. Likewise, in its efforts to reconcile conflicting data, the committee emphasized the importance of properly characterizing the population under study. Not all patients diagnosed with AMI are alike. For ...
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.