the operation and management of a case after left atrium
... more the same day to lower the oxygen requirements and to proceed as soon as possible with the reoperation. We know that one patient has been left with an inferior vena cava draining into the left atrium for two days ; but that patient died. It seemed to us important to give the patient a long enoug ...
... more the same day to lower the oxygen requirements and to proceed as soon as possible with the reoperation. We know that one patient has been left with an inferior vena cava draining into the left atrium for two days ; but that patient died. It seemed to us important to give the patient a long enoug ...
... This document was approved by the American College of Cardiology Foundation Board of Trustees in May 2008 and by the American Heart Association Science Advisory and Coordinating Committee in May 2008. The American College of Cardiology Foundation requests that this document be cited as follows: Bono ...
A or V
... – Class III: Conditions in which there is general agreement that pacemakers are not necessary. Sinus node dysfunction in asymptomatic patients including those in whom substantial sinus bradycardia (heart rate < 40/min.) is a consequence of long-term drug treatment Sinus node dysfunction in patie ...
... – Class III: Conditions in which there is general agreement that pacemakers are not necessary. Sinus node dysfunction in asymptomatic patients including those in whom substantial sinus bradycardia (heart rate < 40/min.) is a consequence of long-term drug treatment Sinus node dysfunction in patie ...
Acute Heart Failure
... in acute heart failure after AMI and thus are best applied to acute de novo heart failure. The third ‘clinical severity’ classification has been validated in a cardiomyopathy service20 and is based on clinical findings.21 It is most applicable to chronic decompensated heart failure.22 3.1.1. Killip cl ...
... in acute heart failure after AMI and thus are best applied to acute de novo heart failure. The third ‘clinical severity’ classification has been validated in a cardiomyopathy service20 and is based on clinical findings.21 It is most applicable to chronic decompensated heart failure.22 3.1.1. Killip cl ...
PBMB - MEF Review_submitted_UNMARKED
... In the beating heart, stretch-induced changes in SAN function are thought to vary with timing during the cardiac cycle, being maximal in the latter part of diastole (towards the end of atrial filling), which is the very time when SAN Vm is moving towards the threshold for AP initiation. Stretch-indu ...
... In the beating heart, stretch-induced changes in SAN function are thought to vary with timing during the cardiac cycle, being maximal in the latter part of diastole (towards the end of atrial filling), which is the very time when SAN Vm is moving towards the threshold for AP initiation. Stretch-indu ...
O`Rourke, Catherine M. Otto, Pravin M. Shah and
... This document was approved by the American College of Cardiology Foundation Board of Trustees in May 2008 and by the American Heart Association Science Advisory and Coordinating Committee in May 2008. The American Heart Association requests that this document be cited as follows: Bonow RO, Carabello ...
... This document was approved by the American College of Cardiology Foundation Board of Trustees in May 2008 and by the American Heart Association Science Advisory and Coordinating Committee in May 2008. The American Heart Association requests that this document be cited as follows: Bonow RO, Carabello ...
2008 Focused Update Incorporated Into the ACC/AHA 2006 Guidelines for... Management of Patients With Valvular Heart Disease: A Report of...
... 2008 Focused Update Incorporated Into the ACC/AHA 2006 Guidelines for the Management of Patients With Valvular Heart Disease: A Report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines (Writing Committee to Revise the 1998 Guidelines for the Managemen ...
... 2008 Focused Update Incorporated Into the ACC/AHA 2006 Guidelines for the Management of Patients With Valvular Heart Disease: A Report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines (Writing Committee to Revise the 1998 Guidelines for the Managemen ...
Left atrial systolic and diastolic function accompanying chronic rapid
... MN) lead was sutured to the right atrial appendage through a right lateral thoracotomy and small pericardiotomy. In eight dogs, a pulse generator programmed at 400 beats/min was implanted in the subcutaneous tissue over the back of the neck. Six weeks after we instituted rapid pacing, the pacemaker ...
... MN) lead was sutured to the right atrial appendage through a right lateral thoracotomy and small pericardiotomy. In eight dogs, a pulse generator programmed at 400 beats/min was implanted in the subcutaneous tissue over the back of the neck. Six weeks after we instituted rapid pacing, the pacemaker ...
- SlideBoom
... hence no contractions of the myocardium and no cardiac output or blood flow. ...
... hence no contractions of the myocardium and no cardiac output or blood flow. ...
Echocardiographic Evaluation ofLeft Ventricular Size
... The circulatory response to handgrip exercise is complex and partly dependent on the severity of the handgrip stress.'" The general response to isometric exercise is similar to that of any type of exercise and consists of an increase in heart rate, blood pressure and cardiac output. However, in cont ...
... The circulatory response to handgrip exercise is complex and partly dependent on the severity of the handgrip stress.'" The general response to isometric exercise is similar to that of any type of exercise and consists of an increase in heart rate, blood pressure and cardiac output. However, in cont ...
ACC/AHA 2006 Guidelines for the Management of Patients With
... This document was approved by the American College of Cardiology Foundation Board of Trustees in May 2006 and by the American Heart Association Science Advisory and Coordinating Committee in May 2006. When citing this document, the American College of Cardiology Foundation requests that the followin ...
... This document was approved by the American College of Cardiology Foundation Board of Trustees in May 2006 and by the American Heart Association Science Advisory and Coordinating Committee in May 2006. When citing this document, the American College of Cardiology Foundation requests that the followin ...
Correlation between Pulmonary Vascular Resistance and Some
... conditions, is illustrative of a ventricular dysfunction. Examination of LV diastolic function Determination of left ventricular diastolic function is an important component of the cardiac evaluation. Patients are classified into four classes, depending on the degree of diastolic dysfunction (Table ...
... conditions, is illustrative of a ventricular dysfunction. Examination of LV diastolic function Determination of left ventricular diastolic function is an important component of the cardiac evaluation. Patients are classified into four classes, depending on the degree of diastolic dysfunction (Table ...
Assessment of clients with CVS conditions
... First Heart sound S1 (Lub): – Is timed with the closure of (AV valves ; mitral & tricuspid) at the beginning of ventricular systole. – Louder than S2 at the apex (mitral valve closure is responsible for most of the sound produced). – Loud S1: The intensity of the 1st heart sound may be increased whe ...
... First Heart sound S1 (Lub): – Is timed with the closure of (AV valves ; mitral & tricuspid) at the beginning of ventricular systole. – Louder than S2 at the apex (mitral valve closure is responsible for most of the sound produced). – Loud S1: The intensity of the 1st heart sound may be increased whe ...
Segmentation of the right ventricle in cardiac CT images
... In 1628 William Harvey came to the conclusion that the heart was a pump and the blood circulated the body which laid the foundation of todays understanding of the heart [1]. However, Harvey did not answer all of the questions, for an example he never understood the function of the septum as he belie ...
... In 1628 William Harvey came to the conclusion that the heart was a pump and the blood circulated the body which laid the foundation of todays understanding of the heart [1]. However, Harvey did not answer all of the questions, for an example he never understood the function of the septum as he belie ...
maximum cardiac performance of rainbow trout (oncorhynchus
... loads were subambient and there were no significant effects of temperature on the filling pressure required to generate routine cardiac output (Table 1). Increasing the filling pressure generated a typical Starling curve for stroke volume at all temperatures. However, acclimation temperature signifi ...
... loads were subambient and there were no significant effects of temperature on the filling pressure required to generate routine cardiac output (Table 1). Increasing the filling pressure generated a typical Starling curve for stroke volume at all temperatures. However, acclimation temperature signifi ...
SERIES ‘‘PULMONARY HYPERTENSION: BASIC CONCEPTS FOR PRACTICAL MANAGEMENT’’
... assessment of left and right ventricular function. The SSFP technique is the preferred CMR pulse sequence for acquisition of volumetric datasets of the left and right ventricles. Cine mode MRI allows regional and global systolic function to be evaluated because wall motion abnormalities can be ident ...
... assessment of left and right ventricular function. The SSFP technique is the preferred CMR pulse sequence for acquisition of volumetric datasets of the left and right ventricles. Cine mode MRI allows regional and global systolic function to be evaluated because wall motion abnormalities can be ident ...
Comparison of Contractile Performance of Canine Atrial and
... than can ventricular muscle before optimum length is reached. At any given initial muscle length, the maximum of tension rise for atrial trabeculae amounted to at least twice that for ventricular trabeculae. At any given load up to 1.5 g/mm2, the maximum velocity of shortening of an atrial trabecula ...
... than can ventricular muscle before optimum length is reached. At any given initial muscle length, the maximum of tension rise for atrial trabeculae amounted to at least twice that for ventricular trabeculae. At any given load up to 1.5 g/mm2, the maximum velocity of shortening of an atrial trabecula ...
CLINICAL AND ECHOCARDIOGRAPHIC FINDINGS OF LEFT
... Hypertension is the commonest of the cardiovascular risk factors, whose prevalence in Tanzania is high between 20-30%, among rural and urban residents respectively. Uncontrolled hypertension leads to a number of structural changes in the heart which eventually cumulates into interstitial fibrosis, m ...
... Hypertension is the commonest of the cardiovascular risk factors, whose prevalence in Tanzania is high between 20-30%, among rural and urban residents respectively. Uncontrolled hypertension leads to a number of structural changes in the heart which eventually cumulates into interstitial fibrosis, m ...
Isolated Ventricular Systolic Interaction During
... itself as decreases in ventricular compliance with increases in contralateral chamber pressure and volume, an effect that is potentiated at high end-diastolic volumes by the presence of the pericardium.' The same shared ventricular anatomy that is responsible for diastolic interaction also permits t ...
... itself as decreases in ventricular compliance with increases in contralateral chamber pressure and volume, an effect that is potentiated at high end-diastolic volumes by the presence of the pericardium.' The same shared ventricular anatomy that is responsible for diastolic interaction also permits t ...
Use of Pressure-volume Conductance Catheters in Real
... Dobutamine infusion produced expected inotropic, chronotropic and vascular effects which reached steady state in approximately 15 minutes after the start of drug delivery (Fig. 1A). In this case, as in many previous experiments we have observed, the four distinct phases of the cardiac cycle seen pri ...
... Dobutamine infusion produced expected inotropic, chronotropic and vascular effects which reached steady state in approximately 15 minutes after the start of drug delivery (Fig. 1A). In this case, as in many previous experiments we have observed, the four distinct phases of the cardiac cycle seen pri ...
CONTRACTI:LITY Alternating contractility in pulsus
... and weak beats. Simulated vascular parameters (afterload impedance) and filling-source pressure (simulated left atrial pressure) were held constant. The pressurevolume loops of all the strong beats were virtually identical, as were the pressure-volume loops of the weak beats. This reproducibility wa ...
... and weak beats. Simulated vascular parameters (afterload impedance) and filling-source pressure (simulated left atrial pressure) were held constant. The pressurevolume loops of all the strong beats were virtually identical, as were the pressure-volume loops of the weak beats. This reproducibility wa ...
PDF Article - ScienceDirect
... central upper portion of the interventricular septum. In many respects this may be a more crucially important synchro• nizing location than is the attachment of free right ventricular wall to the left ventricle along the lines of either the anterior or the posterior interventricular sulci. All three ...
... central upper portion of the interventricular septum. In many respects this may be a more crucially important synchro• nizing location than is the attachment of free right ventricular wall to the left ventricle along the lines of either the anterior or the posterior interventricular sulci. All three ...
Pulmonary arteriovenous shunting in the normal fetal lung
... Contrast bubbles are normally lost in the pulmonary capillary bed. The presence of bubbles in the left atrium (LA) within three cardiac cycles of injection into the PA indicates PAVS (11) (Fig. 1). Contrast material circumventing the lungs through incompetent pulmonary and tricuspid valves and foram ...
... Contrast bubbles are normally lost in the pulmonary capillary bed. The presence of bubbles in the left atrium (LA) within three cardiac cycles of injection into the PA indicates PAVS (11) (Fig. 1). Contrast material circumventing the lungs through incompetent pulmonary and tricuspid valves and foram ...
Print - Circulation
... may have an opposite and detrimental effect on right ventricular outflow pressure due to augmented flow through the elevated pulmonary vascular resistance.' This is apparently what happened in a number of patients with LVADs reported by Pennington et al.,8 in whom pulmonary vascular resistance incre ...
... may have an opposite and detrimental effect on right ventricular outflow pressure due to augmented flow through the elevated pulmonary vascular resistance.' This is apparently what happened in a number of patients with LVADs reported by Pennington et al.,8 in whom pulmonary vascular resistance incre ...
Asymptomatic Aortic Stenosis-Prognosis, Risk Stratification and
... 2.9 Cardiac multislice computed tomography and cardiac magnetic resonance Although limited by the exposure to radiation, its availibity and its use in patients with high heart rate or atrial fibrillation, multislice computed tomography (MSCT) may be helpful in certain clinical situations in patients ...
... 2.9 Cardiac multislice computed tomography and cardiac magnetic resonance Although limited by the exposure to radiation, its availibity and its use in patients with high heart rate or atrial fibrillation, multislice computed tomography (MSCT) may be helpful in certain clinical situations in patients ...
Mitral insufficiency
Mitral insufficiency (MI), mitral regurgitation or mitral incompetence is a disorder of the heart in which the mitral valve does not close properly when the heart pumps out blood. It is the abnormal leaking of blood backwards from the left ventricle, through the mitral valve, into the left atrium, when the left ventricle contracts, i.e. there is regurgitation of blood back into the left atrium. MI is the most common form of valvular heart disease.