Pulmonary Arterial Hypertension - The Association of Physicians of
... of apoptosis, although excessive vasoconstriction plays a significant role in approximately 20% of patients.2 Pulmonary arterial hypertension is a panvasculopathy predominantly affecting small pulmonary arteries (resistant vessels).3 Pulmonary arterial hypertension is characterized by a variety of ...
... of apoptosis, although excessive vasoconstriction plays a significant role in approximately 20% of patients.2 Pulmonary arterial hypertension is a panvasculopathy predominantly affecting small pulmonary arteries (resistant vessels).3 Pulmonary arterial hypertension is characterized by a variety of ...
Common Pulmonary Vein Atresia
... aorta are normally developed. Our cases, as well as the only two previously reported in whom cardiac catheterization was carried out, showed right-to-left shunting through the ductus. In all infants the ductus arteriosus was widely patent at autopsy. A diagnosis of CPVA should be considered in any i ...
... aorta are normally developed. Our cases, as well as the only two previously reported in whom cardiac catheterization was carried out, showed right-to-left shunting through the ductus. In all infants the ductus arteriosus was widely patent at autopsy. A diagnosis of CPVA should be considered in any i ...
Assessment of systemic right ventricular function using tissue
... widely available in outpatient settings. Echocardiography remains the most widely available, non-invasive, and reproducible diagnostic tool [4]. Echocardiographic eva luation of the single ventricle function, particularly with the right ventricular morphology (e.g., in HLHS), continues to be a chal ...
... widely available in outpatient settings. Echocardiography remains the most widely available, non-invasive, and reproducible diagnostic tool [4]. Echocardiographic eva luation of the single ventricle function, particularly with the right ventricular morphology (e.g., in HLHS), continues to be a chal ...
Effects of Nitroprusside on Venous Return and Central
... SUMMARY The effects of nitroprusside (380-760 ug/min) on the systemic venous return, the central blood volume and the equilibrium point between the venous return and cardiac output curves were studied in eight dogs using a right-heart bypass preparation at constant total blood volume. Experiments we ...
... SUMMARY The effects of nitroprusside (380-760 ug/min) on the systemic venous return, the central blood volume and the equilibrium point between the venous return and cardiac output curves were studied in eight dogs using a right-heart bypass preparation at constant total blood volume. Experiments we ...
The electrocardiogram in normal and some abnormal conditions
... early SS years ago a telephone wire connecting Einthoven's laboratory with the intern al clinic, made it possible to register electrocardiograms from patients. Af ter some time this connection was severed by the clinician. It must have been astrange idea indeed that a machine could . give informatio ...
... early SS years ago a telephone wire connecting Einthoven's laboratory with the intern al clinic, made it possible to register electrocardiograms from patients. Af ter some time this connection was severed by the clinician. It must have been astrange idea indeed that a machine could . give informatio ...
Full Text - Digital Access to Scholarship at Harvard
... Parasympathetic regulation of sinoatrial node (SAN) pacemaker activity modulates multiple ion channels to temper heart rate. The functional role of the G-protein–activated K+ current (IKACh) in the control of SAN pacemaking and heart rate is not completely understood. We have investigated the functi ...
... Parasympathetic regulation of sinoatrial node (SAN) pacemaker activity modulates multiple ion channels to temper heart rate. The functional role of the G-protein–activated K+ current (IKACh) in the control of SAN pacemaking and heart rate is not completely understood. We have investigated the functi ...
Loss of Cardiac Magnesium in Experimental Heart Failure
... sublingual epithelium and free cardiac levels. Finally, the APD and beat to beat variability appear to be sensitive to changes in cytosolic Mg21 over a narrow range; thus, prolongation and instability in APD seen in heart failure may be partly due to magnesium depletion. Magnesium deficiency in hear ...
... sublingual epithelium and free cardiac levels. Finally, the APD and beat to beat variability appear to be sensitive to changes in cytosolic Mg21 over a narrow range; thus, prolongation and instability in APD seen in heart failure may be partly due to magnesium depletion. Magnesium deficiency in hear ...
Coronary calcification score: the coronary-risk impact factor
... Initial data on the predictive power of coronary calcification were ambiguous in that almost 20% of myocardial ...
... Initial data on the predictive power of coronary calcification were ambiguous in that almost 20% of myocardial ...
Document
... Myxomas are the most common primary cardiac tumor, accounting for 25–50% of cases [20]. They occur most often in patients 30 to 60 years old, with a higher prevalence in women [21,22]. Most occur sporadically, although there have been cases of familial lesions and lesions associated with a clinical ...
... Myxomas are the most common primary cardiac tumor, accounting for 25–50% of cases [20]. They occur most often in patients 30 to 60 years old, with a higher prevalence in women [21,22]. Most occur sporadically, although there have been cases of familial lesions and lesions associated with a clinical ...
Angiotensin-Converting Enzyme and Angiotensinogen Gene
... eart rate variability (HRV), defined as spontaneous fluctuations in sinus rate due to internal and H external body processes, is an indicator of risk for ...
... eart rate variability (HRV), defined as spontaneous fluctuations in sinus rate due to internal and H external body processes, is an indicator of risk for ...
Cardioversion of acute atrial fibrillation in the emergency department
... In all patients presenting to the emergency department with acute AF, immediate provision of supplementary oxygen, establishment of an intravenous line, continuous electrocardiographic monitoring, blood pressure and 12 lead ECG is mandatory. In the emergency department assessment of AF (Table 8): It ...
... In all patients presenting to the emergency department with acute AF, immediate provision of supplementary oxygen, establishment of an intravenous line, continuous electrocardiographic monitoring, blood pressure and 12 lead ECG is mandatory. In the emergency department assessment of AF (Table 8): It ...
Prenatal diagnosis of major aortopulmonary collateral arteries
... subclavian artery. The number of collateral vessels can vary, as does the nature of the connection of these vessels into the lung vasculature. Collateral vessel stenosis is possible, or such vessels may be completely unobstructed [8, 9]. When there is no obstruction, these can lead to pulmonary vasc ...
... subclavian artery. The number of collateral vessels can vary, as does the nature of the connection of these vessels into the lung vasculature. Collateral vessel stenosis is possible, or such vessels may be completely unobstructed [8, 9]. When there is no obstruction, these can lead to pulmonary vasc ...
Computational modeling of acute myocardial
... Mathematical Institute, University of Oxford, Oxford, UK; bDepartment of Mechanical Engineering, Stanford University, Stanford, CA, USA ...
... Mathematical Institute, University of Oxford, Oxford, UK; bDepartment of Mechanical Engineering, Stanford University, Stanford, CA, USA ...
New QT and JT correction methods in right bundle branch block in
... Introduction: QT interval prolongation on the surface ECG is a marker of abnormal repolarization and the potential for arhythmogenesis. In patients with right bundle branch block (RBBB), the assessment of ventricular repolarization remains controversial. We set out to compute the best derived QT and ...
... Introduction: QT interval prolongation on the surface ECG is a marker of abnormal repolarization and the potential for arhythmogenesis. In patients with right bundle branch block (RBBB), the assessment of ventricular repolarization remains controversial. We set out to compute the best derived QT and ...
Heart Online First, published on December 30, 2005 as 10.1136/hrt.2005.077164
... Abstract Introduction: It has been verified that glycoprotein IIb/IIIa inhibitor tirofiban can attenuate myocardial no-reflow. However, whether the antiplatelet therapy with aspirin-clopidogrel combination is also effective has not been evaluated. In addition, endothelial dysfunction plays an import ...
... Abstract Introduction: It has been verified that glycoprotein IIb/IIIa inhibitor tirofiban can attenuate myocardial no-reflow. However, whether the antiplatelet therapy with aspirin-clopidogrel combination is also effective has not been evaluated. In addition, endothelial dysfunction plays an import ...
Creatine kinase-MB fraction and cardiac troponin T to
... Patients. The patients in this study were selected from those patients served by the Department of Emergency Medicine at the Vienna General Hospital, a tertiary care university hospital. The study period was from May 1, 1995 through December 1, 1995. The performance of this study was approved by the ...
... Patients. The patients in this study were selected from those patients served by the Department of Emergency Medicine at the Vienna General Hospital, a tertiary care university hospital. The study period was from May 1, 1995 through December 1, 1995. The performance of this study was approved by the ...
Blood pressure
... Age: The very young have a rapid pulse rate. The adults have a normal range of 70 to 80 per minute. The very old have relatively slow pulse rate. Before birth - 140 to 150 per minute, 130 to 150 per minute. At birth (Newborn) - 115 to 130 per minute. First year - 100 to 115 per minute. Second year - ...
... Age: The very young have a rapid pulse rate. The adults have a normal range of 70 to 80 per minute. The very old have relatively slow pulse rate. Before birth - 140 to 150 per minute, 130 to 150 per minute. At birth (Newborn) - 115 to 130 per minute. First year - 100 to 115 per minute. Second year - ...
Risk Stratification for Sudden Cardiac Death after Acute Myocardial
... Many patients who survive an acute myocardial infarction (AMI) remain at risk of recurrent cardiac events and sudden cardiac death after discharge, despite optimal medical treatment. Assessment of the degree of left ventricular dysfunction and residual myocardial ischaemia is useful to identify the ...
... Many patients who survive an acute myocardial infarction (AMI) remain at risk of recurrent cardiac events and sudden cardiac death after discharge, despite optimal medical treatment. Assessment of the degree of left ventricular dysfunction and residual myocardial ischaemia is useful to identify the ...
Polar S810 as an Alternative Resource to the Use of the
... Background: The 4-second exercise test (T4s) evaluates the cardiac vagal tone during the initial heart rate (HR) transient at sudden dynamic exercise, through the identification of the cardiac vagal index (CVI) obtained from the electrocardiogram (ECG). Objective: To evaluate the use of the Polar S8 ...
... Background: The 4-second exercise test (T4s) evaluates the cardiac vagal tone during the initial heart rate (HR) transient at sudden dynamic exercise, through the identification of the cardiac vagal index (CVI) obtained from the electrocardiogram (ECG). Objective: To evaluate the use of the Polar S8 ...
Dobutamine stress echo-induced apical ballooning (Takotsubo
... Recovery is usually rapid, although heart failure, cardiogenic shock, ventricular arrhythmia, mitral incompetence, LV outflow tract (LVOT) obstruction, and free wall rupture have all been described as a complication of this condition. In the published literature, it is associated with a 3.5% risk of ...
... Recovery is usually rapid, although heart failure, cardiogenic shock, ventricular arrhythmia, mitral incompetence, LV outflow tract (LVOT) obstruction, and free wall rupture have all been described as a complication of this condition. In the published literature, it is associated with a 3.5% risk of ...
Atrial Fibrillation In Heart Failure
... offer improved stroke prevention in patients with heart failure albeit at a higher drug cost. Alternative methods of stroke reduction such as left atrial appendage occlusion are emerging, although evidence for their benefit in patients with heart failure has not yet been published. ...
... offer improved stroke prevention in patients with heart failure albeit at a higher drug cost. Alternative methods of stroke reduction such as left atrial appendage occlusion are emerging, although evidence for their benefit in patients with heart failure has not yet been published. ...
pacemaker and iCd insertion procedure
... infection, formation of blood clots, damage incision into the skin on the front of the to the heart wall with bleeding around the chest wall just below the collarbone. The heart, damage to blood vessels and partial pacing leads are then passed through a vein collapse of one lung. Very occasionally o ...
... infection, formation of blood clots, damage incision into the skin on the front of the to the heart wall with bleeding around the chest wall just below the collarbone. The heart, damage to blood vessels and partial pacing leads are then passed through a vein collapse of one lung. Very occasionally o ...
The study of the pulmonary circulation has, therefore, always at
... active deposit could be ascertained, and that with the passage of the active deposit into the vessels of the lungs, the ionization effect would diminish only to increase when the active deposit of radium was concentrated again within the left chambers of the heart. Unfortunately, once the ionization ...
... active deposit could be ascertained, and that with the passage of the active deposit into the vessels of the lungs, the ionization effect would diminish only to increase when the active deposit of radium was concentrated again within the left chambers of the heart. Unfortunately, once the ionization ...
Aortic root abscess complicating bacterial endocarditis - Heart
... even tumour deposits.3 In the clinical context abscesses seemed to be the most likely lesion. In addition to the abdominal examination a limited computed tomographic study of the thorax was undertaken to visualise the region of the aortic root. Figure (a) is an image from this study and represents a ...
... even tumour deposits.3 In the clinical context abscesses seemed to be the most likely lesion. In addition to the abdominal examination a limited computed tomographic study of the thorax was undertaken to visualise the region of the aortic root. Figure (a) is an image from this study and represents a ...
Cardiac surgery
Cardiovascular (heart) surgery is surgery on the heart or great vessels performed by cardiac surgeons. Frequently, it is done to treat complications of ischemic heart disease (for example, coronary artery bypass grafting), correct congenital heart disease, or treat valvular heart disease from various causes including endocarditis, rheumatic heart disease and atherosclerosis. It also includes heart transplantation.