Left Ventricular Mass in Normal Children and its
... Dai et al., 2009). Bonatto et al. (2006) reported that for normal children there is no difference whether they correlate the values of cardiac measurements assessed by echocardiography with age, weight, height or BSA. Epstein et al. suggested that plotting the echocardiographic measurements against ...
... Dai et al., 2009). Bonatto et al. (2006) reported that for normal children there is no difference whether they correlate the values of cardiac measurements assessed by echocardiography with age, weight, height or BSA. Epstein et al. suggested that plotting the echocardiographic measurements against ...
Consequences of sleep disordered breathing
... caused by inspiring against the upper airway daytime sleepiness can also be objectively conobstruction results in sinus bradycardia during firmed by multiple sleep latency testing the apnoea followed by a reflex tachycardia at (MSLT).6' Mean sleep latency is reduced in apnoea termination.50 The degr ...
... caused by inspiring against the upper airway daytime sleepiness can also be objectively conobstruction results in sinus bradycardia during firmed by multiple sleep latency testing the apnoea followed by a reflex tachycardia at (MSLT).6' Mean sleep latency is reduced in apnoea termination.50 The degr ...
The Pathophysiology of the Acute MI
... • No proven benefit of thrombolytic therapy in patients without ST-segment elevation • Patients with ST-segment depression and/or T-wave inversion are currently not candidates for thrombolytic therapy ...
... • No proven benefit of thrombolytic therapy in patients without ST-segment elevation • Patients with ST-segment depression and/or T-wave inversion are currently not candidates for thrombolytic therapy ...
Surgery for Atrial Fibrillation - ANNALS Academy of Medicine
... with atrial fibrillation is 5 times greater than in agematched controls and atrial fibrillation is responsible for as many as 15% of all strokes.9,10 The failure rate of medical antiarrhythmic therapy for atrial fibrillation is 50% at 1 year and 84% at 2 years.10,11 ...
... with atrial fibrillation is 5 times greater than in agematched controls and atrial fibrillation is responsible for as many as 15% of all strokes.9,10 The failure rate of medical antiarrhythmic therapy for atrial fibrillation is 50% at 1 year and 84% at 2 years.10,11 ...
Arrhythmogenic right ventricular cardiomyopathy (ARVC
... Arrhythmogenic Right Ventricular Cardiomyopathy (ARVC) is one of the most arrhythmogenic forms of inherited cardiomyopathy and a frequent cause of sudden death in the young. Affected individuals typically present between the second and fourth decade of life with arrhythmias coming from the right ven ...
... Arrhythmogenic Right Ventricular Cardiomyopathy (ARVC) is one of the most arrhythmogenic forms of inherited cardiomyopathy and a frequent cause of sudden death in the young. Affected individuals typically present between the second and fourth decade of life with arrhythmias coming from the right ven ...
Restricting Excessive Cardiac Action Potential and QT Prolongation
... L-735,821, or HMR-1556 produces little effect on action potential duration (APD) in isolated rabbit and dog ventricular myocytes, the effect of IKs block on normal human ventricular muscle APD is not known. Therefore, studies were conducted to elucidate the role of IKs in normal human ventricular mu ...
... L-735,821, or HMR-1556 produces little effect on action potential duration (APD) in isolated rabbit and dog ventricular myocytes, the effect of IKs block on normal human ventricular muscle APD is not known. Therefore, studies were conducted to elucidate the role of IKs in normal human ventricular mu ...
Cachexia and Sarcopenia: Emerging Syndromes of Importance in
... Whereas obesity is a risk factor for development of heart disease in people, obesity actually may be associated with a protective effect once heart failure is present—this is known as the obesity paradox.23 This is a relatively recently identified phenomenon but the evidence has rapidly grown. A recen ...
... Whereas obesity is a risk factor for development of heart disease in people, obesity actually may be associated with a protective effect once heart failure is present—this is known as the obesity paradox.23 This is a relatively recently identified phenomenon but the evidence has rapidly grown. A recen ...
Regional Implementation of a Pediatric Cardiology Syncope
... syncope scales for daily dizziness and overall well-being/ wellness. The provider assessed a 0 to 12 point Syncope Severity Score (SSS) based on frequency, severity, and disability associated with the symptoms (Appendix S2). The initial ECG was evaluated and any abnormalities were noted. Pertinent a ...
... syncope scales for daily dizziness and overall well-being/ wellness. The provider assessed a 0 to 12 point Syncope Severity Score (SSS) based on frequency, severity, and disability associated with the symptoms (Appendix S2). The initial ECG was evaluated and any abnormalities were noted. Pertinent a ...
Transcatheter Mitral Valve Replacement for Severe Mitral
... number of patients was five. In each of the studies the patients selected were those deemed not suitable for surgical valve replacement or percutaneous repair with a MitraClip. All three studies demonstrated successful implantation of the device. Across all three studies the longest follow-up of a s ...
... number of patients was five. In each of the studies the patients selected were those deemed not suitable for surgical valve replacement or percutaneous repair with a MitraClip. All three studies demonstrated successful implantation of the device. Across all three studies the longest follow-up of a s ...
syncope: diagnosis and treatment – marc kraus
... When history and physical examination suggest metabolic disorders, serum chemistry profiles should be evaluated for electrolyte abnormalities, renal function, and to rule out hypoglycemia. In addition, complete blood count is used to detect anemia/ polycythemia or white blood cell abnormalities. How ...
... When history and physical examination suggest metabolic disorders, serum chemistry profiles should be evaluated for electrolyte abnormalities, renal function, and to rule out hypoglycemia. In addition, complete blood count is used to detect anemia/ polycythemia or white blood cell abnormalities. How ...
818-2787-2-RV
... produced during ischemia was involved in the coordination of ATP supply and demand, and also in protection from cell death using cultured cardiac myocytes. Unexpectedly, the survival rate of myocytes for 3 h simulated ischemia (SI) was increased as compared with that for 2 h SI at 24 h after reperfu ...
... produced during ischemia was involved in the coordination of ATP supply and demand, and also in protection from cell death using cultured cardiac myocytes. Unexpectedly, the survival rate of myocytes for 3 h simulated ischemia (SI) was increased as compared with that for 2 h SI at 24 h after reperfu ...
Anthropometric Study of the Pectoralis Minor Muscle as a Power
... The aim of the study was to select the most suitable muscle, to assess its vascular distribution and to determine the range of mobilization of the muscle dependent on the location and the length of the vascular pedicle. The following muscles were distinguished: • of one vascular pedicle • of two vas ...
... The aim of the study was to select the most suitable muscle, to assess its vascular distribution and to determine the range of mobilization of the muscle dependent on the location and the length of the vascular pedicle. The following muscles were distinguished: • of one vascular pedicle • of two vas ...
PDF - Circulation Research
... maximal tension development between sarcomere lengths of 2.00// and 2.20// in skeletal muscle (10, 16). However, no plateau of actively developed tension is observed in cardiac muscle; instead, active tension decreases rapidly at sarcomere lengths both above and below 2.20// (Fig. 4). A 10% reductio ...
... maximal tension development between sarcomere lengths of 2.00// and 2.20// in skeletal muscle (10, 16). However, no plateau of actively developed tension is observed in cardiac muscle; instead, active tension decreases rapidly at sarcomere lengths both above and below 2.20// (Fig. 4). A 10% reductio ...
Print - Circulation Research
... maximal tension development between sarcomere lengths of 2.00// and 2.20// in skeletal muscle (10, 16). However, no plateau of actively developed tension is observed in cardiac muscle; instead, active tension decreases rapidly at sarcomere lengths both above and below 2.20// (Fig. 4). A 10% reductio ...
... maximal tension development between sarcomere lengths of 2.00// and 2.20// in skeletal muscle (10, 16). However, no plateau of actively developed tension is observed in cardiac muscle; instead, active tension decreases rapidly at sarcomere lengths both above and below 2.20// (Fig. 4). A 10% reductio ...
Print - Circulation
... warm (37°C) saline was applied to the heart intermittently to prevent surface cooling and to moisten the epicardium. A thermistor on the epicardial surface ensured that the epicardial temperature was maintained at 37°C. After a stabilization period of 30 minutes, bipolar electrogram information was ...
... warm (37°C) saline was applied to the heart intermittently to prevent surface cooling and to moisten the epicardium. A thermistor on the epicardial surface ensured that the epicardial temperature was maintained at 37°C. After a stabilization period of 30 minutes, bipolar electrogram information was ...
PDF (Thesis_Part2)
... Chapter 2 provides essential background information for the research presented. We review heart development in vertebrates and explain why zebrafish are the model system of choice to study dynamic cardiac function. We provide evidence that hemodynamic forces contribute to normal and abnormal heart d ...
... Chapter 2 provides essential background information for the research presented. We review heart development in vertebrates and explain why zebrafish are the model system of choice to study dynamic cardiac function. We provide evidence that hemodynamic forces contribute to normal and abnormal heart d ...
thrombosis of the main pulmonary arteries - Heart
... and Means and Mallory (1932) described patients showing chronic right heart failure; in each case organized or organizing thrombus occluded the main pulmonary artery or its branches. The case of Means and Mallory showed evidence of collateral circulation to the lungs via hypertrophied bronchial and ...
... and Means and Mallory (1932) described patients showing chronic right heart failure; in each case organized or organizing thrombus occluded the main pulmonary artery or its branches. The case of Means and Mallory showed evidence of collateral circulation to the lungs via hypertrophied bronchial and ...
Heart rate variability during simulated hemorrhage with lower body
... within the 3-min analysis window resulted in the correction of the beat by linear interpolation prior to analysis. If more than one ectopic beat occurred during an LBNP level, the ECG data for that level were not analyzed. Acceptable ECG signals were used to calculate RRI and heart rate. The RRI sig ...
... within the 3-min analysis window resulted in the correction of the beat by linear interpolation prior to analysis. If more than one ectopic beat occurred during an LBNP level, the ECG data for that level were not analyzed. Acceptable ECG signals were used to calculate RRI and heart rate. The RRI sig ...
Atrial natriuretic polypeptide is removed by the lungs and released
... thought to be synthesized and stored in the atria but not in the ventricles in adult mammals, more recent studies (IS-lg) show that it is also present in tiny amounts in extra-atria] sites, including the ventricles. Three distinct molecular forms of human atrial natriuretic polypeptide, (Y,/3and y, ...
... thought to be synthesized and stored in the atria but not in the ventricles in adult mammals, more recent studies (IS-lg) show that it is also present in tiny amounts in extra-atria] sites, including the ventricles. Three distinct molecular forms of human atrial natriuretic polypeptide, (Y,/3and y, ...
Restenosis - Repeat Narrowing of a Coronary Artery
... ngioplasty is a safe and effective way to unblock coronary arteries. During this procedure, a catheter is inserted into the groin or arm of the patient and guided forward through the aorta and into the coronary arteries of the heart. There, blocked arteries can be opened with a balloon positioned at ...
... ngioplasty is a safe and effective way to unblock coronary arteries. During this procedure, a catheter is inserted into the groin or arm of the patient and guided forward through the aorta and into the coronary arteries of the heart. There, blocked arteries can be opened with a balloon positioned at ...
... the other both in pre-exercise values of FEV1, MEF50 and MEF25: (p<0.0001) and after the treadmill test (FEV1 and MEF50: p<0.0001; MEF25: p<0.0005). No significant differences were found between the lung function values pre-exercise or postexercise for salmeterol 25 µg and 50 µg. The mean values wit ...
Fibrillation and defibrillation of the heart
... time to defibrillation; electrode size, contact, pressure, and distance from the heart; previous shocks; and ventilatory phase. The success of defibrillation depends not only on threshold but also on probability. Defibrillation at too high energy levels can be proarrhythmic and cause functional and ...
... time to defibrillation; electrode size, contact, pressure, and distance from the heart; previous shocks; and ventilatory phase. The success of defibrillation depends not only on threshold but also on probability. Defibrillation at too high energy levels can be proarrhythmic and cause functional and ...
Final Protocol - Word 831 KB - Medical Services Advisory Committee
... increase in afterload, progressive hypertrophy of the left ventricle, and a decrease in systemic and coronary blood flow as consequences of valve obstruction. Aortic stenosis is the most common valvular heart disease in adults (Yan, Cao et al. 2010). Affected individuals are typically > 65 years of ...
... increase in afterload, progressive hypertrophy of the left ventricle, and a decrease in systemic and coronary blood flow as consequences of valve obstruction. Aortic stenosis is the most common valvular heart disease in adults (Yan, Cao et al. 2010). Affected individuals are typically > 65 years of ...
Cardiac Auscultation: Rediscovering the Lost Art
... Systematic Approach to Cardiac Auscultation. As a rule, most practitioners conduct the examination from the right side of the patient and begin with the patient reclining in the supine position. The examiner first listens over the patient’s second right intercostal space (aortic area) and slowly mov ...
... Systematic Approach to Cardiac Auscultation. As a rule, most practitioners conduct the examination from the right side of the patient and begin with the patient reclining in the supine position. The examiner first listens over the patient’s second right intercostal space (aortic area) and slowly mov ...
Serum Levels of the Interleukin-1 Receptor Family
... weight, and extent of coronary artery disease, did not correlate with baseline ST2 levels (Table 1). Few patients in this population had either a prior history of or presented with clinical evidence of heart failure. Heart rate (P⬍0.0001) and systolic blood pressure (P⫽0.05) were associated with ST2 ...
... weight, and extent of coronary artery disease, did not correlate with baseline ST2 levels (Table 1). Few patients in this population had either a prior history of or presented with clinical evidence of heart failure. Heart rate (P⬍0.0001) and systolic blood pressure (P⫽0.05) were associated with ST2 ...
Cardiac contractility modulation
.jpg?width=300)
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.