Special Report Vein of Galen Aneurysms: A Review and Current
... harboring vein of Galen aneurysms . In severe cases, as much as 80% of left ventricular output may be delivered to the head as a consequence of the low vascular resistance within the malformation (12) . Because this output returns di rectly to the right ventricle , right heart failure from volume an ...
... harboring vein of Galen aneurysms . In severe cases, as much as 80% of left ventricular output may be delivered to the head as a consequence of the low vascular resistance within the malformation (12) . Because this output returns di rectly to the right ventricle , right heart failure from volume an ...
AHA/ASA Guideline
... with placebo in high-risk persons and found a 24% risk reduction (95% CI, 5 to 40) for stroke, MI, or vascular death among the 1013 patients with a history of stroke or TIA.14 Although the BP-lowering effect as measured during the study was minimal (average, 3/2 mm Hg), it may have been related to t ...
... with placebo in high-risk persons and found a 24% risk reduction (95% CI, 5 to 40) for stroke, MI, or vascular death among the 1013 patients with a history of stroke or TIA.14 Although the BP-lowering effect as measured during the study was minimal (average, 3/2 mm Hg), it may have been related to t ...
Guidelines for Prevention of Stroke in Patients With Ischemic Stroke
... with placebo in high-risk persons and found a 24% risk reduction (95% CI, 5 to 40) for stroke, MI, or vascular death among the 1013 patients with a history of stroke or TIA.14 Although the BP-lowering effect as measured during the study was minimal (average, 3/2 mm Hg), it may have been related to t ...
... with placebo in high-risk persons and found a 24% risk reduction (95% CI, 5 to 40) for stroke, MI, or vascular death among the 1013 patients with a history of stroke or TIA.14 Although the BP-lowering effect as measured during the study was minimal (average, 3/2 mm Hg), it may have been related to t ...
ASA: Guidelines for Prevention of Stroke in Patients With Ischemic
... with placebo in high-risk persons and found a 24% risk reduction (95% CI, 5 to 40) for stroke, MI, or vascular death among the 1013 patients with a history of stroke or TIA.14 Although the BP-lowering effect as measured during the study was minimal (average, 3/2 mm Hg), it may have been related to t ...
... with placebo in high-risk persons and found a 24% risk reduction (95% CI, 5 to 40) for stroke, MI, or vascular death among the 1013 patients with a history of stroke or TIA.14 Although the BP-lowering effect as measured during the study was minimal (average, 3/2 mm Hg), it may have been related to t ...
EHRA/HRS Expert Consensus on Catheter Ablation of
... that is provoked by adrenergic stimulation that is not triggered.1,15 This type of VT may become incessant under stress or during isoproterenol administration, but cannot be initiated or terminated by programmed electrical stimulation; it can sometimes be suppressed by calcium channel blockers or - ...
... that is provoked by adrenergic stimulation that is not triggered.1,15 This type of VT may become incessant under stress or during isoproterenol administration, but cannot be initiated or terminated by programmed electrical stimulation; it can sometimes be suppressed by calcium channel blockers or - ...
Dynamic cardiovascular control of arterial blood pressure and heart
... (Pinsky et al., 2005), securing hemodynamic stability, during major surgery and in the intensive care unit (ICU), is one of the main challenges faced by the clinicians, where maintenance of blood pressure and prevention of organ perfusion deficiencies are the primary goals. Thus, analysis of autonom ...
... (Pinsky et al., 2005), securing hemodynamic stability, during major surgery and in the intensive care unit (ICU), is one of the main challenges faced by the clinicians, where maintenance of blood pressure and prevention of organ perfusion deficiencies are the primary goals. Thus, analysis of autonom ...
Surgical Treatment of Coronary Artery Disease
... 40 years. • Although there are cases in which the best treatment approach (medical, surgical, or catheter-based) is clear, the best choice of intervention is not obvious for the majority of patients. • Five, 7, and 10 years after initial treatment, mortality is lower for coronary artery bypass graft ...
... 40 years. • Although there are cases in which the best treatment approach (medical, surgical, or catheter-based) is clear, the best choice of intervention is not obvious for the majority of patients. • Five, 7, and 10 years after initial treatment, mortality is lower for coronary artery bypass graft ...
Analysis of the Heart Sounds and Murmurs of Fetuses - REAL-PhD
... decisions have to be made about any further, more extensive examinations or special care. However, it seems that the real potential of heart sound analysis is still not exploited, especially in the field of fetal-neonatal examinations. The aim of this thesis work has been twofold. First, recent stud ...
... decisions have to be made about any further, more extensive examinations or special care. However, it seems that the real potential of heart sound analysis is still not exploited, especially in the field of fetal-neonatal examinations. The aim of this thesis work has been twofold. First, recent stud ...
DOI: 10.1161/CIRCULATIONAHA.108.191098 published online Feb
... his is the sixth and final section of the project to update electrocardiography (ECG) standards and interpretation. The project was initiated by the Council on Clinical Cardiology of the American Heart Association (AHA). The rationale for the project and the process for its implementation were descr ...
... his is the sixth and final section of the project to update electrocardiography (ECG) standards and interpretation. The project was initiated by the Council on Clinical Cardiology of the American Heart Association (AHA). The rationale for the project and the process for its implementation were descr ...
Helen brooke taussig: 1898 to 1986
... they are not listed because of lack of time and space (see follow-up. Dr. Blalock was responsible for surgical care. the Appendix). The outgrowth of this arrangement was the birth of the Dr. Taussig was HonoraryChairmanof theSecond World two companion collaborating fields of pediatric cardiolCongres ...
... they are not listed because of lack of time and space (see follow-up. Dr. Blalock was responsible for surgical care. the Appendix). The outgrowth of this arrangement was the birth of the Dr. Taussig was HonoraryChairmanof theSecond World two companion collaborating fields of pediatric cardiolCongres ...
Heart rate variability in young adults
... 2.1. Physiological cardiovascular control mechanisms and heart rate The cardiovascular system is regulated by multiple mechanisms, including e.g. the nervous and hormonal pathways. The two divisions of the ANS, the parasympathetic, via vagus nerves, and the sympathetic system, including the adrenal ...
... 2.1. Physiological cardiovascular control mechanisms and heart rate The cardiovascular system is regulated by multiple mechanisms, including e.g. the nervous and hormonal pathways. The two divisions of the ANS, the parasympathetic, via vagus nerves, and the sympathetic system, including the adrenal ...
Mitral valve anatomy for Transcatheter techniques
... the closure while the longest distance occurred at Point 5 (7.78 ± 2.61 mm), as demonstrated in Figure basal zone that is found only in the mural leaflet is mal area that has insertions of basal cords to its v surface. Being distant from the ventricular wall, leaflet does not have attachments to bas ...
... the closure while the longest distance occurred at Point 5 (7.78 ± 2.61 mm), as demonstrated in Figure basal zone that is found only in the mural leaflet is mal area that has insertions of basal cords to its v surface. Being distant from the ventricular wall, leaflet does not have attachments to bas ...
Determination of Inadvertent Atrial Capture During Para
... bipolar His pair) and is saturated at least to some degree during pacing. The proximal pair of the pacing catheter may not be a good surrogate because of poor contact and is itself distant from the site of interest. In addition, the pacing catheter may capture the ventricular muscle and His bundle, ...
... bipolar His pair) and is saturated at least to some degree during pacing. The proximal pair of the pacing catheter may not be a good surrogate because of poor contact and is itself distant from the site of interest. In addition, the pacing catheter may capture the ventricular muscle and His bundle, ...
Sleep Society Statement
... as a result of breathing events and consequential damages. This can be different aspects such as symptoms of insomnia, somnolence during the day or long-term metabolic, endocrine, neurological, psychiatric, cardiovascular or pulmonary consequences. The combination of the factors triggered in each ca ...
... as a result of breathing events and consequential damages. This can be different aspects such as symptoms of insomnia, somnolence during the day or long-term metabolic, endocrine, neurological, psychiatric, cardiovascular or pulmonary consequences. The combination of the factors triggered in each ca ...
The Sarcoplasmic Reticulum and the Evolution of the Vertebrate Heart
... Contraction and relaxation of cardiac muscle is initiated by the rise and fall in intracellular Ca2⫹. Ca2⫹ can enter the cardiac cell (cardiomyocyte) across the sarcolemmal membrane or it can be released from intracellular stores. In the mammalian myocardium, the majority of Ca2⫹ that activates cont ...
... Contraction and relaxation of cardiac muscle is initiated by the rise and fall in intracellular Ca2⫹. Ca2⫹ can enter the cardiac cell (cardiomyocyte) across the sarcolemmal membrane or it can be released from intracellular stores. In the mammalian myocardium, the majority of Ca2⫹ that activates cont ...
Myocardial Mechanics and Collagen Structure in the Osteogenesis
... the genes encoding type I collagen pro-␣1 and pro-␣2 chains. In most cases, the mutation is unknown and diagnosis is made by clinical assessment of symptoms, which include bone fragility, defective skeletal development, smaller stature, and blue sclera. Few data are available regarding implications ...
... the genes encoding type I collagen pro-␣1 and pro-␣2 chains. In most cases, the mutation is unknown and diagnosis is made by clinical assessment of symptoms, which include bone fragility, defective skeletal development, smaller stature, and blue sclera. Few data are available regarding implications ...
Left juxtaposed atrial appendages: Diagnostic two
... Left juxtaposition of the atrial appendages is a rare congenital malformation usually associated with cyanotic congenital heart disease, in which the right and left atrial appendages lie side by side to the left of the great arteries (Fig. IA). Recognition of this problem in complex congenital heart ...
... Left juxtaposition of the atrial appendages is a rare congenital malformation usually associated with cyanotic congenital heart disease, in which the right and left atrial appendages lie side by side to the left of the great arteries (Fig. IA). Recognition of this problem in complex congenital heart ...
Vitamin C prevents hyperoxia-mediated
... Missisauga, Canada) was administered to assess endothelium-dependent vascular responses. FBF was measured during infusion of acetylcholine at doses of 15, 30, and 60 g/min in CHF patients and at doses of 7.5, 15, and 30 g/min in healthy subjects. Verapamil (verapamil hydrochloride injection 5 mg/2 ...
... Missisauga, Canada) was administered to assess endothelium-dependent vascular responses. FBF was measured during infusion of acetylcholine at doses of 15, 30, and 60 g/min in CHF patients and at doses of 7.5, 15, and 30 g/min in healthy subjects. Verapamil (verapamil hydrochloride injection 5 mg/2 ...
2011 ACCF/AHA/SCAI Guideline for Percutaneous Coronary
... weigh the strength of evidence for or against particular tests, treatments, or procedures; and include estimates of expected outcomes where such data exist. Patient-specific modifiers, comorbidities, and issues of patient preference that may influence the choice of tests or therapies are considered. ...
... weigh the strength of evidence for or against particular tests, treatments, or procedures; and include estimates of expected outcomes where such data exist. Patient-specific modifiers, comorbidities, and issues of patient preference that may influence the choice of tests or therapies are considered. ...
2011 ACCF/AHA/SCAI Guideline for Percutaneous Coronary
... weigh the strength of evidence for or against particular tests, treatments, or procedures; and include estimates of expected outcomes where such data exist. Patient-specific modifiers, comorbidities, and issues of patient preference that may influence the choice of tests or therapies are considered. ...
... weigh the strength of evidence for or against particular tests, treatments, or procedures; and include estimates of expected outcomes where such data exist. Patient-specific modifiers, comorbidities, and issues of patient preference that may influence the choice of tests or therapies are considered. ...
Transcatheter Aortic Valve Implantation for Aortic Stenosis
... the transfemoral approach compared to continued medical care with or without balloon valvuloplasty. There was a large decrease in mortality for the TAVI patients at one year compared with medical care. This trial also reported improvements on other relevant clinical outcomes for the TAVI group. Ther ...
... the transfemoral approach compared to continued medical care with or without balloon valvuloplasty. There was a large decrease in mortality for the TAVI patients at one year compared with medical care. This trial also reported improvements on other relevant clinical outcomes for the TAVI group. Ther ...
Obesity and atrial electrical and mechanical remodeling
... The following thesis is the product of 5 years of work investigating the relationship between obesity and atrial fibrillation mechanisms and therapy. It is presented as a thesis by publication. The thesis abstract provides an overview of the research questions addressed and the hypotheses examined a ...
... The following thesis is the product of 5 years of work investigating the relationship between obesity and atrial fibrillation mechanisms and therapy. It is presented as a thesis by publication. The thesis abstract provides an overview of the research questions addressed and the hypotheses examined a ...
Independent effects of preload, afterload, and contractility on left
... isolated isovolumic beating hearts (20). Thus under some circumstances, torsion may vary with force, as well as with volume. Because inotropic stimulation enhances pressure (or force) generation at any given end-diastolic volume (EDV) and end-systolic volume (ESV; 17, 18), it may therefore have a di ...
... isolated isovolumic beating hearts (20). Thus under some circumstances, torsion may vary with force, as well as with volume. Because inotropic stimulation enhances pressure (or force) generation at any given end-diastolic volume (EDV) and end-systolic volume (ESV; 17, 18), it may therefore have a di ...
A congenital cardiovascular malformation in which there is an
... Systemic venous anomaly A congenital cardiovascular malformation in which there is an abnormality of the mediastinal systemic veins including but not limited to: caval veins, coronary sinus, hepatic veins connecting to the heart, brachiocephalic veins, and/or azygos veins. ...
... Systemic venous anomaly A congenital cardiovascular malformation in which there is an abnormality of the mediastinal systemic veins including but not limited to: caval veins, coronary sinus, hepatic veins connecting to the heart, brachiocephalic veins, and/or azygos veins. ...
Cardiac contractility modulation
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.