ACC/AHA/ESC Practice Guidelines
... It is important that the medical profession play a significant role in critically evaluating the use of diagnostic procedures and therapies as they are introduced and tested in the detection, management, or prevention of disease states. Rigorous and expert analysis of the available data documenting ...
... It is important that the medical profession play a significant role in critically evaluating the use of diagnostic procedures and therapies as they are introduced and tested in the detection, management, or prevention of disease states. Rigorous and expert analysis of the available data documenting ...
ACC/AHA/ESC Practice Guidelines
... For new or updated text, view the 2011 Focused Update and the 2011 Focused Update on Dabigatran. Text supporting unchanged recommendations has not been updated. It is important that the medical profession play a significant role in critically evaluating the use of diagnostic procedures and therapies ...
... For new or updated text, view the 2011 Focused Update and the 2011 Focused Update on Dabigatran. Text supporting unchanged recommendations has not been updated. It is important that the medical profession play a significant role in critically evaluating the use of diagnostic procedures and therapies ...
ACC/AHA/ESC 2006 guidelines for the management
... AHA/ESC 2006 guidelines for the management of patients with atrial fibrillation: a report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines and the European Society of Cardiology Committee for Practice Guidelines (Writing Committee to Revise the 2001 ...
... AHA/ESC 2006 guidelines for the management of patients with atrial fibrillation: a report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines and the European Society of Cardiology Committee for Practice Guidelines (Writing Committee to Revise the 2001 ...
ACC/AHA/ESC Practice Guidelines
... Copyright © 2006 American Heart Association. All rights reserved. Print ISSN: 0009-7322. Online ISSN: 1524-4539 ...
... Copyright © 2006 American Heart Association. All rights reserved. Print ISSN: 0009-7322. Online ISSN: 1524-4539 ...
DISSERTATION INFLUENCE OF ANATOMIC VALVE CONDITIONS
... Figure 4.17: Aortic flow waveform study particle streak plot snapshots ..................................... 73 Figure 4.18: Aortic flow waveform study velocity vectors and vorticity contours........................ 74 Figure 4.19: Time-varying vorticity magnitude for different aortic flow waveform ...
... Figure 4.17: Aortic flow waveform study particle streak plot snapshots ..................................... 73 Figure 4.18: Aortic flow waveform study velocity vectors and vorticity contours........................ 74 Figure 4.19: Time-varying vorticity magnitude for different aortic flow waveform ...
ANATOMIC VARIATIONS AND ANOMALIES OF THE CORONARY
... Angiography in our Institute for symptomatic and asymptomatic reasons. The number of incidental findings of coronary artery anomalies in these patients is tabulated in Table 1. From the Table 1 it is evident that, out of the 1600 patients, only 31 patients revealed congenital coronary anomalies acco ...
... Angiography in our Institute for symptomatic and asymptomatic reasons. The number of incidental findings of coronary artery anomalies in these patients is tabulated in Table 1. From the Table 1 it is evident that, out of the 1600 patients, only 31 patients revealed congenital coronary anomalies acco ...
Independent effects of preload, afterload, and contractility on left
... Protocol 1: load alteration. With this experimental preparation, the computer simulation of load may be altered, causing secondary changes in EDV and ESV. In eight hearts, the loading conditions were changed under a constant inotropic status (Fig. 1). We first changed the preload (preload down and p ...
... Protocol 1: load alteration. With this experimental preparation, the computer simulation of load may be altered, causing secondary changes in EDV and ESV. In eight hearts, the loading conditions were changed under a constant inotropic status (Fig. 1). We first changed the preload (preload down and p ...
Increased Connective Tissue Growth Factor Relative
... been given previous medication, including angiotensinconverting enzyme inhibitors and/or -adrenoceptor blockers, because of their previous history of congestive heart failure. Pulmonary artery wedge pressure and LV end-diastolic pressure were not different when comparing the 2 groups. Furthermore, ...
... been given previous medication, including angiotensinconverting enzyme inhibitors and/or -adrenoceptor blockers, because of their previous history of congestive heart failure. Pulmonary artery wedge pressure and LV end-diastolic pressure were not different when comparing the 2 groups. Furthermore, ...
Subclinical Atrial Fibrillation and the Risk of Stroke
... episodes of atrial tachyarrhythmia detected by devices during the follow-up period, episodes lasting longer than 6 minutes, as compared with no episodes, were associated with an increased risk of ischemic stroke or systemic embolism (hazard ratio, 1.76; 95% CI, 0.99 to 3.11; P = 0.05). The increase ...
... episodes of atrial tachyarrhythmia detected by devices during the follow-up period, episodes lasting longer than 6 minutes, as compared with no episodes, were associated with an increased risk of ischemic stroke or systemic embolism (hazard ratio, 1.76; 95% CI, 0.99 to 3.11; P = 0.05). The increase ...
Rad GTPase Deletion Increases Ltype Calcium Channel Current
... perfusion with a constant preload of 10 mm Hg and constant afterload of 55 mm Hg. The working heart supraventricularly paced throughout the study at a rate slightly higher than the intrinsic rate. Left ventricular pressure, cardiac output, and coronary flow were measured once the heart had reached st ...
... perfusion with a constant preload of 10 mm Hg and constant afterload of 55 mm Hg. The working heart supraventricularly paced throughout the study at a rate slightly higher than the intrinsic rate. Left ventricular pressure, cardiac output, and coronary flow were measured once the heart had reached st ...
The Enigma of the Fontan circulation Wolff, Djoeke
... These commandments have gradually been adapted over the years, in particular the age criterion has been modified7,8. Furthermore, the classic Fontan operation was performed in patients with tricuspid atresia6, but gradually more univentricular cardiac defects were referred for a Fontan correction, i ...
... These commandments have gradually been adapted over the years, in particular the age criterion has been modified7,8. Furthermore, the classic Fontan operation was performed in patients with tricuspid atresia6, but gradually more univentricular cardiac defects were referred for a Fontan correction, i ...
2016 Rhythm Management Billing and Coding
... Item/Service Description A. General Permanent cardiac pacemakers refer to a group of self-contained, battery operated, implanted devices that send electrical stimulation to the heart through one or more implanted leads. They are often classified by the number of chambers of the heart that the device ...
... Item/Service Description A. General Permanent cardiac pacemakers refer to a group of self-contained, battery operated, implanted devices that send electrical stimulation to the heart through one or more implanted leads. They are often classified by the number of chambers of the heart that the device ...
Effect of Acutely Increased Right Ventricular Afterload on Work
... the anteroposterior minor axis dimensions of the left ventricle at end diastole and at end ejection during the two occlusion states in one study are shown in Figure 5. As observed previously,31 these relations were shifted to the right during pulmonary arterial occlusion, indicating that for any giv ...
... the anteroposterior minor axis dimensions of the left ventricle at end diastole and at end ejection during the two occlusion states in one study are shown in Figure 5. As observed previously,31 these relations were shifted to the right during pulmonary arterial occlusion, indicating that for any giv ...
Coexpression of Cardiac titins
... than do N2B titins (600–800 vs. 163 residues), as well as an additional tandem Ig segment (4). Recent sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) studies (2) of myocardium isolated from various species indicate that the expression level of N2B and N2BA cardiac titins varies ...
... than do N2B titins (600–800 vs. 163 residues), as well as an additional tandem Ig segment (4). Recent sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) studies (2) of myocardium isolated from various species indicate that the expression level of N2B and N2BA cardiac titins varies ...
Ticagrelor Protects the Heart Against Reperfusion Injury and
... clinical trial did not show a clear clinical benefit in patients with STEMI receiving ticagrelor en route to the hospital versus in the catheterization laboratory.16 As the study was not powered for benefit on cardiovascular events, it is inconclusive about the hypothesis that administration of tica ...
... clinical trial did not show a clear clinical benefit in patients with STEMI receiving ticagrelor en route to the hospital versus in the catheterization laboratory.16 As the study was not powered for benefit on cardiovascular events, it is inconclusive about the hypothesis that administration of tica ...
Dissection of Sheep`s Pluck
... a. What happened to the lungs when air was forced into them? b. Do you think there is a limit to how much air can be pumped into the lungs? Explain your answer ...
... a. What happened to the lungs when air was forced into them? b. Do you think there is a limit to how much air can be pumped into the lungs? Explain your answer ...
Normal and Variant Coronary Arterial and Venous Anatomy
... The LAD artery (Fig. 13) runs in the anterior interventricular sulcus along the ventricular septum. Commonly, the LAD artery may be embedded within the anterior myocardium forming an overlying myocardial bridge (Fig. 14). Myocardial bridging is seen more often on CT than described in the coronary an ...
... The LAD artery (Fig. 13) runs in the anterior interventricular sulcus along the ventricular septum. Commonly, the LAD artery may be embedded within the anterior myocardium forming an overlying myocardial bridge (Fig. 14). Myocardial bridging is seen more often on CT than described in the coronary an ...
Valvular-ventricular interaction: importance of the
... mixture of radiographic contrast material and mineral oil. The unstressed volume of the chamber was measured directly as the maximum volume producing an end-diastolic pressure of precisely 0 mm Hg. Images of the contrast-filled balloon obtained with a portable C-arm flouroscope and Vidicon tube were ...
... mixture of radiographic contrast material and mineral oil. The unstressed volume of the chamber was measured directly as the maximum volume producing an end-diastolic pressure of precisely 0 mm Hg. Images of the contrast-filled balloon obtained with a portable C-arm flouroscope and Vidicon tube were ...
Impaired right and left ventricular diastolic
... evaluation between the years 2007 and 2009. This was a crosssectional study consisting of a single evaluation. To avoid influence of extraneous factors such as ventricular pacing, TOF variants with distinct pathophysiology, and the influence of severe RV afterload on diastolic function, we excluded ...
... evaluation between the years 2007 and 2009. This was a crosssectional study consisting of a single evaluation. To avoid influence of extraneous factors such as ventricular pacing, TOF variants with distinct pathophysiology, and the influence of severe RV afterload on diastolic function, we excluded ...
Chapter 34
... • Label the major parts of the heart. • Describe the flow of blood through the heart and coronary vessels. • Name the elements of the heart’s conduction system. • State the order in which normal impulses are conducted through the heart. • Explain the nursing considerations for patients having proced ...
... • Label the major parts of the heart. • Describe the flow of blood through the heart and coronary vessels. • Name the elements of the heart’s conduction system. • State the order in which normal impulses are conducted through the heart. • Explain the nursing considerations for patients having proced ...
Print - Circulation
... electrical quiescence (type A defibrillation); ventricular premature beats, couplets, or tachycardia, followed by resumption of normal rhythm (type B defibrillation); and unsuccessful defibrillation.1 In both type B successful defibrillation and unsuccessful defibrillation, an isoelectric window usu ...
... electrical quiescence (type A defibrillation); ventricular premature beats, couplets, or tachycardia, followed by resumption of normal rhythm (type B defibrillation); and unsuccessful defibrillation.1 In both type B successful defibrillation and unsuccessful defibrillation, an isoelectric window usu ...
The Sarcoplasmic Reticulum and the Evolution of the Vertebrate Heart
... magnitude of SR Ca2⫹ release are key mechanisms by which the rate and force of cardiac contraction are altered. The indispensable role of the SR in mammalian species can be appreciated by the failure or reduction in cardiomyocyte contraction and relaxation after SR Ca2⫹ cycling is inhibited (13). Th ...
... magnitude of SR Ca2⫹ release are key mechanisms by which the rate and force of cardiac contraction are altered. The indispensable role of the SR in mammalian species can be appreciated by the failure or reduction in cardiomyocyte contraction and relaxation after SR Ca2⫹ cycling is inhibited (13). Th ...
the PDF - Heart Rhythm Society
... of developing AV block following pacemaker implantation within 5 years of follow-up is 3–35%.15,16,19,20 This risk varies with patient factors including age and comorbidities and likely increases further over time and with the addition of medications that have negative dromotropic effects. In patien ...
... of developing AV block following pacemaker implantation within 5 years of follow-up is 3–35%.15,16,19,20 This risk varies with patient factors including age and comorbidities and likely increases further over time and with the addition of medications that have negative dromotropic effects. In patien ...
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.