A Prospective, Randomized Trial of an Emergency
... atrial fibrillation is compared with routine hospital admission and management. Methods: Adult patients presenting to the ED with atrial fibrillation of less than 48 hours’ duration without hemodynamic instability or other comorbid conditions requiring hospitalization were enrolled. Participants wer ...
... atrial fibrillation is compared with routine hospital admission and management. Methods: Adult patients presenting to the ED with atrial fibrillation of less than 48 hours’ duration without hemodynamic instability or other comorbid conditions requiring hospitalization were enrolled. Participants wer ...
Physiology of the Right Ventricle
... functionally very different. As a matter of fact, a brisk increase in PVR produced by pulmonary arterial constriction to mimic massive pulmonary embolism, induces an acute dilatation and pump failure of the RV [9], and there is no clinical counterpart of this observation for the LV. However, a gradu ...
... functionally very different. As a matter of fact, a brisk increase in PVR produced by pulmonary arterial constriction to mimic massive pulmonary embolism, induces an acute dilatation and pump failure of the RV [9], and there is no clinical counterpart of this observation for the LV. However, a gradu ...
ECG in STEMI - American Heart Association
... • Also known as apical ballooning, takotsubo cardiomyopathy or broken heart syndrome • More common than previously thought • More common in elderly women but can occur in other groups • An emotional or medical trigger such as loss of a loved one or severe pain or medical illness ...
... • Also known as apical ballooning, takotsubo cardiomyopathy or broken heart syndrome • More common than previously thought • More common in elderly women but can occur in other groups • An emotional or medical trigger such as loss of a loved one or severe pain or medical illness ...
2014 AATS guidelines for the prevention and management of
... made available to each task force member via a shared electronic folder. The subgroup summaries as well as the original literature were presented and discussed at 9 scheduled teleconferences. The conferences were recorded. Articles were selected for inclusion based on consensus opinion by task force ...
... made available to each task force member via a shared electronic folder. The subgroup summaries as well as the original literature were presented and discussed at 9 scheduled teleconferences. The conferences were recorded. Articles were selected for inclusion based on consensus opinion by task force ...
Congenital heart diseases Single Choice 1. CS. Select the most
... E. Atrial septal defect 31. MC. Specify pathophysiological mechanisms in Tetralogy of Fallot: A. Right-left flow in relation with degree of stenosis B. Systemic vascular resistance C. Size of ventricular septal defect D. Aortic position E. Additional left ventricular trabeculae 32. MC. Specify card ...
... E. Atrial septal defect 31. MC. Specify pathophysiological mechanisms in Tetralogy of Fallot: A. Right-left flow in relation with degree of stenosis B. Systemic vascular resistance C. Size of ventricular septal defect D. Aortic position E. Additional left ventricular trabeculae 32. MC. Specify card ...
Practice Alert - Dysrhythmia Monitoring
... Left Arm (LA) infra-clavicular fossa close to left shoulder Left Leg (LL) below rib cage on left side of abdomen Ground (RL) anywhere on torso ...
... Left Arm (LA) infra-clavicular fossa close to left shoulder Left Leg (LL) below rib cage on left side of abdomen Ground (RL) anywhere on torso ...
Components of Left Ventricular Ejection and Filling in Patients with
... AR, 34 patients with severe AR, and 28 healthy subjects (control group). Severity of AR was assessed according to the recommendations for evaluation of the severity of native valvular regurgitation with 2-dimensional and Doppler echocardiography (14). The patients were recruited from the inpatient a ...
... AR, 34 patients with severe AR, and 28 healthy subjects (control group). Severity of AR was assessed according to the recommendations for evaluation of the severity of native valvular regurgitation with 2-dimensional and Doppler echocardiography (14). The patients were recruited from the inpatient a ...
Minimizing Ventricular Pacing to Reduce Atrial Fibrillation in Sinus
... dual-chamber pacing (12.7%), and 42 of 530 in the group assigned to dual-chamber minimal ventricular pacing (7.9%) (P = 0.004 by the log-rank test). Kaplan–Meier estimates of time to persistent atrial fibrillation showed absolute reductions in the rates of persistent atrial fibrillation associated w ...
... dual-chamber pacing (12.7%), and 42 of 530 in the group assigned to dual-chamber minimal ventricular pacing (7.9%) (P = 0.004 by the log-rank test). Kaplan–Meier estimates of time to persistent atrial fibrillation showed absolute reductions in the rates of persistent atrial fibrillation associated w ...
Chapter 1
... completion of filling of the ventricles; thus, this “pause” should make intuitive sense. The PR segment represents the electrically quiet period between atrial and ventricular depolarization. The PR segment does not include any waves; it is the region after the P wave and before the QRS complex. Int ...
... completion of filling of the ventricles; thus, this “pause” should make intuitive sense. The PR segment represents the electrically quiet period between atrial and ventricular depolarization. The PR segment does not include any waves; it is the region after the P wave and before the QRS complex. Int ...
Effects of mitral valve replacement concomitant with tricuspid
... of right ventricular function is an important indicator of heart disease. In clinical work, special attention is paid to the left ventricular function, and there is rare research on right ventricular function. RVFAC, RVEF and TAPSE are the indicators of clinical evaluation of right ventricular funct ...
... of right ventricular function is an important indicator of heart disease. In clinical work, special attention is paid to the left ventricular function, and there is rare research on right ventricular function. RVFAC, RVEF and TAPSE are the indicators of clinical evaluation of right ventricular funct ...
Interventional Cardiology
... Complex lesions include tetralogy of Fallot (TOF), transposition of the great arteries, congenitally corrected transposition of the great arteries, Ebstein’s anomaly and single ventricle defects such as hypoplastic left heart syndrome or tricuspid atresia. These complex defects occur much less frequ ...
... Complex lesions include tetralogy of Fallot (TOF), transposition of the great arteries, congenitally corrected transposition of the great arteries, Ebstein’s anomaly and single ventricle defects such as hypoplastic left heart syndrome or tricuspid atresia. These complex defects occur much less frequ ...
Tissue doppler echocardiography for evaluating left ventricular
... which standard LV parameters were normal.1 In addition, when compared to conventional Doppler parameters, TDE data are relatively independent from preload and afterload so it is useful in assessment of diastolic functions. TDE is a recently used new technique; for that reason there are a few studies ...
... which standard LV parameters were normal.1 In addition, when compared to conventional Doppler parameters, TDE data are relatively independent from preload and afterload so it is useful in assessment of diastolic functions. TDE is a recently used new technique; for that reason there are a few studies ...
Double Outlet Right Ventricle
... • In the absence of pulmonary stenosis, corrective operation should be performed in the first 6 months of life, or pulmonary artery banding and subsequent delayed repair at age 1-2 years or beyond 2 years, if morphology is more challenging • In the presence of pulmonary stenosis, this approach are s ...
... • In the absence of pulmonary stenosis, corrective operation should be performed in the first 6 months of life, or pulmonary artery banding and subsequent delayed repair at age 1-2 years or beyond 2 years, if morphology is more challenging • In the presence of pulmonary stenosis, this approach are s ...
NEJM -- An International Ra
... The trial was designed to provide high power for detecting a 15 percent reduction in mortality or an absolute decrease of 1 percent, whichever was larger, for the experimental treatments as compared with the controls. The two groups assigned to monotherapy with streptokinase were considered the cont ...
... The trial was designed to provide high power for detecting a 15 percent reduction in mortality or an absolute decrease of 1 percent, whichever was larger, for the experimental treatments as compared with the controls. The two groups assigned to monotherapy with streptokinase were considered the cont ...
Mitochondria Oxidative Stress, Connexin43 Remodeling, and
... Figure 1. A mitochondrial antioxidant inhibits sudden cardiac death and ventricular arrhythmia inducibility. A, Renin–angiotensin system activation mice were treated with the following antioxidants: apocynin, L-NIO, sepiapterin, allopurinol, TEMPOL, and MitoTEMPO. A group of ACE8/8 mice were also c ...
... Figure 1. A mitochondrial antioxidant inhibits sudden cardiac death and ventricular arrhythmia inducibility. A, Renin–angiotensin system activation mice were treated with the following antioxidants: apocynin, L-NIO, sepiapterin, allopurinol, TEMPOL, and MitoTEMPO. A group of ACE8/8 mice were also c ...
Preserved ventricular contractility in infarcted mouse - AJP
... specific overexpression of 2-adrenergic receptors (2-AR) on the development of heart failure (HF) were studied in wildtype (WT) and transgenic (TG) mice following myocardial infarction (MI) by coronary artery occlusion. Animals were studied by echocardiography at weeks 7 to 8 and by catheterizatio ...
... specific overexpression of 2-adrenergic receptors (2-AR) on the development of heart failure (HF) were studied in wildtype (WT) and transgenic (TG) mice following myocardial infarction (MI) by coronary artery occlusion. Animals were studied by echocardiography at weeks 7 to 8 and by catheterizatio ...
Document
... The right ventricle remodeling is concomitant with an increase in the pulmonary resistance (Fig. 1). When the pulmonary arterial pressure progressively increases from a normal value (Fig. 1a) to a value corresponding to a light pulmonary hypertension (Fig. 1b), pulmonary arteries are slightly vasoco ...
... The right ventricle remodeling is concomitant with an increase in the pulmonary resistance (Fig. 1). When the pulmonary arterial pressure progressively increases from a normal value (Fig. 1a) to a value corresponding to a light pulmonary hypertension (Fig. 1b), pulmonary arteries are slightly vasoco ...
Atrial Tachycardia - Thomas Jefferson University
... – Discrete P waves before every QRS, constant PR interval – Rate should vary in response to respirations, vagal stimulation, pain, stress – An isolated sinus tachycardia is a potentially life threatening rhythm until the underlying cause is identified and treated! ...
... – Discrete P waves before every QRS, constant PR interval – Rate should vary in response to respirations, vagal stimulation, pain, stress – An isolated sinus tachycardia is a potentially life threatening rhythm until the underlying cause is identified and treated! ...
cardiac structure and function in young athletes
... Some studies within the literature have described cardiovascular adaptations following intensive and long-tern training in adults. The rationale behind this study is that adolescent athlete who have been involved for over 12 months of endurance exercise, might exhibit cardiac structure and functiona ...
... Some studies within the literature have described cardiovascular adaptations following intensive and long-tern training in adults. The rationale behind this study is that adolescent athlete who have been involved for over 12 months of endurance exercise, might exhibit cardiac structure and functiona ...
Dr. Andrew Mackie - Murmurs in Children
... Pulmonary valve stenosis any age crescendo‐decrescendo LUSB radiating to lung fields if mild, sounds similar to a pulmonary flow murmur or ASD • however, is associated with a variable early systolic ejection click (heard in expiration) ...
... Pulmonary valve stenosis any age crescendo‐decrescendo LUSB radiating to lung fields if mild, sounds similar to a pulmonary flow murmur or ASD • however, is associated with a variable early systolic ejection click (heard in expiration) ...
Cardiovascular Drugs
... Have crash cart available in room. Give IV over 1-2 seconds followed with rapid flush. May have 1st, 2nd, or 3rd degree heart block or may stop until SA node takes over again – If give too slow causes vasodilation/tachycardia ...
... Have crash cart available in room. Give IV over 1-2 seconds followed with rapid flush. May have 1st, 2nd, or 3rd degree heart block or may stop until SA node takes over again – If give too slow causes vasodilation/tachycardia ...
Electrophysiological Effects of MS
... pointes, 2 of 15 developed ventricular fibrillation and 5 of 15 developed sustained ventricular tachycardia. The idioventricular rates and left ventricular pressures were reduced significantly by sotalol, not by MS-551. In conclusion, MS-551 is a potent class III antiarrhythmic agent that selectivel ...
... pointes, 2 of 15 developed ventricular fibrillation and 5 of 15 developed sustained ventricular tachycardia. The idioventricular rates and left ventricular pressures were reduced significantly by sotalol, not by MS-551. In conclusion, MS-551 is a potent class III antiarrhythmic agent that selectivel ...
Anesthesia and Pulmonary Hypertension
... elevation in MPAP is out of proportion to the degree of PCWP elevation, hence the popular term “PH out of proportion to left heart disease” that is also often used to describe this condition. Mixed PH may further be described as “vasoreactive” or “fixed,” depending on the reversal of TPG and PVR with ...
... elevation in MPAP is out of proportion to the degree of PCWP elevation, hence the popular term “PH out of proportion to left heart disease” that is also often used to describe this condition. Mixed PH may further be described as “vasoreactive” or “fixed,” depending on the reversal of TPG and PVR with ...
Cardiac contractility modulation
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Cardiac contractility modulation (CCM) is a treatment for patients with moderate to severe left ventricular systolic heart failure (NYHA class II–IV). The short- and long-term use of this therapy enhances both the strength of ventricular contraction and the heart’s pumping capacity. The CCM mechanism is based on stimulation of the cardiac muscle by non-excitatory electrical signals (NES). CCM treatment is delivered by a pacemaker-like device that applies the NES, adjusted to and synchronized with the electrical action in the cardiac cycle.In CCM therapy, electrical stimulation is applied to the cardiac muscle during the absolute refractory period. In this phase of the cardiac cycle, electrical signals cannot trigger new cardiac muscle contractions, hence this type of stimulation is known as a non-excitatory stimulation. However, the electrical CCM signals increase the influx of calcium ions into the cardiac muscle cells (cardiomyocytes). In contrast to other electrical stimulation treatments for heart failure, such as pacemaker therapy or implantable cardioverter defibrillators (ICD), CCM does not affect the cardiac rhythm directly. Rather, the aim is to enhance the heart’s natural contraction (the native cardiac contractility) sustainably over long periods of time. Furthermore, unlike most interventions that increase cardiac contractility, CCM is not associated with an unfavorable increase in oxygen demand by the heart (measured in terms of Myocardial Oxygen Consumption or MVO2). This may be explained by the beneficial effect CCM has in improving cardiac efficiency. A meta-analysis in 2014 and an overview of device-based treatment options in heart failure in 2013 concluded that CCM treatment is safe, that it is generally beneficial to patients and that CCM treatment increases the exercise tolerance (ET) and quality of life (QoL) of patients. Furthermore, preliminary long-term survival data shows that CCM is associated with lower long-term mortality in heart failure patients when compared with expected rates among similar patients not treated with CCM.