Physiology of Single Ventricle, Birth and Beyond James A. DiNardo
... circulation. Fontan patients adapt to reduce venous capacitance (reduce unstressed volume) so that elevated systemic venous pressure can be maintained with a normal systemic venous volume (increased stressed volume). This makes them particularly vulnerable to stimuli that reduce stressed volume such ...
... circulation. Fontan patients adapt to reduce venous capacitance (reduce unstressed volume) so that elevated systemic venous pressure can be maintained with a normal systemic venous volume (increased stressed volume). This makes them particularly vulnerable to stimuli that reduce stressed volume such ...
cardiac cycle
... this phase (fig. 2.2). The pressure gradient between ventricles and arteries decreases and blood is ejected more slowly – decreased or slow ejection. The maximum ventricular pressure at the top of the ejection reaches 120 mmHg and 25 mmHg in the left and right ventricles, respectively. This peak val ...
... this phase (fig. 2.2). The pressure gradient between ventricles and arteries decreases and blood is ejected more slowly – decreased or slow ejection. The maximum ventricular pressure at the top of the ejection reaches 120 mmHg and 25 mmHg in the left and right ventricles, respectively. This peak val ...
Interactive Quiz Heart Structure and Function
... What is the function of the left atrium/auricle? A wall that divides a structure into two parts ...
... What is the function of the left atrium/auricle? A wall that divides a structure into two parts ...
Delayed diagnosis of an isolated partial anomalous pulmonary
... extremely unusual for patients with single pulmonary vein anomaly. We think that our patient have significant shunting despite of single pulmonary vein anomaly because he is symptomatic (fatigue and dyspnoea on physical exertion, palpitations) and has signs of right heart dilatation and volume overl ...
... extremely unusual for patients with single pulmonary vein anomaly. We think that our patient have significant shunting despite of single pulmonary vein anomaly because he is symptomatic (fatigue and dyspnoea on physical exertion, palpitations) and has signs of right heart dilatation and volume overl ...
Angiography
... Angiographic projections are designated either according to the position of the recording detector (image intensifier or flat panel detector) or the direction of the X-ray beam toward the recording device. Generally speaking, in cardiology, the convention is the former, and all terminology discussed ...
... Angiographic projections are designated either according to the position of the recording detector (image intensifier or flat panel detector) or the direction of the X-ray beam toward the recording device. Generally speaking, in cardiology, the convention is the former, and all terminology discussed ...
Pulmonary artery and right ventricle function in
... Pulmonary artery acceleration time and maximal flow velocity values were measured with spectral Doppler. Maximum pulmonary artery diameter (PAD) was obtained 1 cm distal to the pulmonary annulus. Fractional area change of the right ventricle (RV) was calculated through percentage area change of the ...
... Pulmonary artery acceleration time and maximal flow velocity values were measured with spectral Doppler. Maximum pulmonary artery diameter (PAD) was obtained 1 cm distal to the pulmonary annulus. Fractional area change of the right ventricle (RV) was calculated through percentage area change of the ...
Left Ventricular Pseudoaneurysm After Inferior Wall Myocardial
... Pseudoaneurysms most commonly occur after myocardial infarction and rarely are seen after surgery, www.turner-white.com ...
... Pseudoaneurysms most commonly occur after myocardial infarction and rarely are seen after surgery, www.turner-white.com ...
Arrhythmogenic Right Ventricular Dysplasia/Cardiomyopathy
... Arrhythmogenic Right Ventricular Dysplasia (ARVD), also termed Arrhythmogenic Right Ventricular Cardiomiopathy (ARVC), is right ventricle myocardial disorder, whose causes are unknown, showing a frequent familial occurrence (1-5). The typical clinical manifestation consists of ventricular arrhythmia ...
... Arrhythmogenic Right Ventricular Dysplasia (ARVD), also termed Arrhythmogenic Right Ventricular Cardiomiopathy (ARVC), is right ventricle myocardial disorder, whose causes are unknown, showing a frequent familial occurrence (1-5). The typical clinical manifestation consists of ventricular arrhythmia ...
Transcatheter Pulmonary Valve Implantation - 1/16
... which represented a significant improvement from baseline. Over a median follow-up of 4.5 years (range, 0.4-7.0 years), 4 deaths occurred. During the follow-up period, 32 patients required a reintervention on RV outflow tract, 25 of which were transcatheter TPV reinterventions. A total of 11 patient ...
... which represented a significant improvement from baseline. Over a median follow-up of 4.5 years (range, 0.4-7.0 years), 4 deaths occurred. During the follow-up period, 32 patients required a reintervention on RV outflow tract, 25 of which were transcatheter TPV reinterventions. A total of 11 patient ...
Section Four: Pulmonary Artery Waveform Interpretation
... Accurate identification of the a, c, and v waves requires correlation of the waveform with the ECG. On the ECG, the P wave represents discharge of the SA node and atrial depolarization, which causes right atrial contraction. Therefore, the a wave occurs after the P wave and usually in the PR interva ...
... Accurate identification of the a, c, and v waves requires correlation of the waveform with the ECG. On the ECG, the P wave represents discharge of the SA node and atrial depolarization, which causes right atrial contraction. Therefore, the a wave occurs after the P wave and usually in the PR interva ...
Section Four:
... Accurate identification of the a, c, and v waves requires correlation of the waveform with the ECG. On the ECG, the P wave represents discharge of the SA node and atrial depolarization, which causes right atrial contraction. Therefore, the a wave occurs after the P wave and usually in the PR interva ...
... Accurate identification of the a, c, and v waves requires correlation of the waveform with the ECG. On the ECG, the P wave represents discharge of the SA node and atrial depolarization, which causes right atrial contraction. Therefore, the a wave occurs after the P wave and usually in the PR interva ...
Left ventricular long-axis diastolic function is
... controls. Global systolic (ejection fraction) and diastolic (transmitral flow) function, and regional longitudinal and transverse myocardial velocities [tissue Doppler echocardiography (TDE)], were measured at rest and immediately after exercise. In endurance-trained compared with strength-trained a ...
... controls. Global systolic (ejection fraction) and diastolic (transmitral flow) function, and regional longitudinal and transverse myocardial velocities [tissue Doppler echocardiography (TDE)], were measured at rest and immediately after exercise. In endurance-trained compared with strength-trained a ...
causes of right ventricular failure
... sternum; and is bordered by the annulus of the tricuspid and pulmonary valves and the IV septum. The anatomy of the RV has been described as being unique and complex[10]. The RV appears triangular when viewed laterally and crescentshaped in cross-section, in contrast to the ellipsoidal LV. The RV sh ...
... sternum; and is bordered by the annulus of the tricuspid and pulmonary valves and the IV septum. The anatomy of the RV has been described as being unique and complex[10]. The RV appears triangular when viewed laterally and crescentshaped in cross-section, in contrast to the ellipsoidal LV. The RV sh ...
Outcome of surgical repair of atrial septal defect in adult age group
... ventricle,( right ventricular diastolic dimensions as high as 4 cm/m2. ) but probably the effect of the remodeled ventricle as a consequence of a long-standing volumetric overload plays a much more important role. Persistent right ventricle dilatation tends to be progressive and can affect the compe ...
... ventricle,( right ventricular diastolic dimensions as high as 4 cm/m2. ) but probably the effect of the remodeled ventricle as a consequence of a long-standing volumetric overload plays a much more important role. Persistent right ventricle dilatation tends to be progressive and can affect the compe ...
Evaluation of Diastolic Filling of Left Ventricle in Health and Disease
... Heart failure is the diagnosis made most commonly among inpatients in the United States and accounts for 720,000 hospital admissions annually (1). Previously, investigators focused on the abnormalities of systolic function to explain the signs and symptoms of heart failure. The inability of the left ...
... Heart failure is the diagnosis made most commonly among inpatients in the United States and accounts for 720,000 hospital admissions annually (1). Previously, investigators focused on the abnormalities of systolic function to explain the signs and symptoms of heart failure. The inability of the left ...
CASE REPORT CASE Unusual case of pulmonary valve atresia
... normal in size with normal peripheral pulmonary arborisation. In addition, systemic-to-pulmonary collateral vessels are not as well developed in patients with TOF with pulmonary atresia as they are in patients with PA-VSD.4,6 Our patient has a congenital cyanotic heart defect which is characterised ...
... normal in size with normal peripheral pulmonary arborisation. In addition, systemic-to-pulmonary collateral vessels are not as well developed in patients with TOF with pulmonary atresia as they are in patients with PA-VSD.4,6 Our patient has a congenital cyanotic heart defect which is characterised ...
Mock circulatory system for Ventricular Assist Device (VAD) Testing
... the maximum and minimum pressures and waveform observation. Figure 2 shows a typical waveform observation. The maximum and minimum voltage readings on the bottom of the screen represent the systolic and diastolic pressures respectively, when multiplied by 100. The mock loop was tested at three diffe ...
... the maximum and minimum pressures and waveform observation. Figure 2 shows a typical waveform observation. The maximum and minimum voltage readings on the bottom of the screen represent the systolic and diastolic pressures respectively, when multiplied by 100. The mock loop was tested at three diffe ...
PDF file - Via Medica Journals
... Background: Abnormal diameters of foetal vessels are common findings in congenital heart defects. However, it is difficult for pathologist to assess whether the diameters of the vessels are normal or not and to compare with echocardiographic data. The Z-score is a dimensionless quantity representing ...
... Background: Abnormal diameters of foetal vessels are common findings in congenital heart defects. However, it is difficult for pathologist to assess whether the diameters of the vessels are normal or not and to compare with echocardiographic data. The Z-score is a dimensionless quantity representing ...
Congestive heart failure in the dog
... Large- and giant-breed dogs are predisposed to dilated cardiomyopathy. The condition has also been recognized in Cocker Spaniels. Small and medium-size breeds of dogs are predisposed to chronic valvular disease. CHF is more usual in middle-aged to older dogs, but can develop as a result of congenita ...
... Large- and giant-breed dogs are predisposed to dilated cardiomyopathy. The condition has also been recognized in Cocker Spaniels. Small and medium-size breeds of dogs are predisposed to chronic valvular disease. CHF is more usual in middle-aged to older dogs, but can develop as a result of congenita ...
Preeclampsia and Peripartum Cardiomyopathy in a 24-Year
... preeclampsia, with early clinical signs in the absence of diagnostic criteria and then rapid development of a definitive early-onset preeclampsia at 30 weeks gestation, which has a particularly bad prognosis.3 This development highlights the importance of close monitoring in patients with preeclamps ...
... preeclampsia, with early clinical signs in the absence of diagnostic criteria and then rapid development of a definitive early-onset preeclampsia at 30 weeks gestation, which has a particularly bad prognosis.3 This development highlights the importance of close monitoring in patients with preeclamps ...
New insights in the assessment of right ventricular function
... compartment where the rate of volume fall correlated with the time to peak RV ejection (r = 0.62, p = 0.03). In Group 1, this relationship was lost and became with the inflow compartment (r = 0.61, p = 0.01). In Group 2, the highest correlation was with the apex (r=0.60, p<0.05), but not with the ou ...
... compartment where the rate of volume fall correlated with the time to peak RV ejection (r = 0.62, p = 0.03). In Group 1, this relationship was lost and became with the inflow compartment (r = 0.61, p = 0.01). In Group 2, the highest correlation was with the apex (r=0.60, p<0.05), but not with the ou ...
Assessment of diastolic dysfunction and heart failure with integrated
... than 1. In the presence of elevated left ventricular filling pressure this ratio is ...
... than 1. In the presence of elevated left ventricular filling pressure this ratio is ...
Muscular Subaortic Stenosis: The Temporal
... should last as long as papillary muscle contraction, i.e., to end-systole.- If the Venturi effect is the cause of SAM and SAM-septal contact, then one would expect SAM-septal contact to cease before end-systole because of a reduced ejection velocity, or because of a decrease in left ventricular pres ...
... should last as long as papillary muscle contraction, i.e., to end-systole.- If the Venturi effect is the cause of SAM and SAM-septal contact, then one would expect SAM-septal contact to cease before end-systole because of a reduced ejection velocity, or because of a decrease in left ventricular pres ...
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.