Echocardiography in Pediatric and Congenital Heart
... venous flow patterns, and tissue Doppler velocities) are difficult to interpret in Fontan patients. Progressive increase in ventricular stiffness and reduction in compliance may be one of the major mechanisms explaining Fontan failure with progressive age. ...
... venous flow patterns, and tissue Doppler velocities) are difficult to interpret in Fontan patients. Progressive increase in ventricular stiffness and reduction in compliance may be one of the major mechanisms explaining Fontan failure with progressive age. ...
Evaluation of Diastolic Filling of Left Ventricle in Health and Disease
... shown (28 –30) that mitral flow velocity curves correlate well with the first derivative of diastolic volumetric flow rates obtained by other accepted methods, such as left ventriculography, radionuclide angiography and digitized M-mode echocardiography. On the basis of descriptive studies of transm ...
... shown (28 –30) that mitral flow velocity curves correlate well with the first derivative of diastolic volumetric flow rates obtained by other accepted methods, such as left ventriculography, radionuclide angiography and digitized M-mode echocardiography. On the basis of descriptive studies of transm ...
Point mutations in murine Nkx2-5 phenocopy human
... and predicted structural changes in the homeodomain region (22). These experiments confirm that the mutant proteins display a significant reduction in DNA binding affinity to endogenous sites in situ and therefore must lead to a wide array of changes in transcription regulatory networks in vivo, cor ...
... and predicted structural changes in the homeodomain region (22). These experiments confirm that the mutant proteins display a significant reduction in DNA binding affinity to endogenous sites in situ and therefore must lead to a wide array of changes in transcription regulatory networks in vivo, cor ...
Steeper restitution slopes across right ventricular endocardium in
... artifact (3). TWA is considered negative in the absence of these criteria at a heart rate ⱕ110 bpm (3). Patients were classified as high risk for ventricular arrhythmias if they had inducible VT or a positive TWA. In the absence of inducible VT or negative TWA, patients were considered to be low ris ...
... artifact (3). TWA is considered negative in the absence of these criteria at a heart rate ⱕ110 bpm (3). Patients were classified as high risk for ventricular arrhythmias if they had inducible VT or a positive TWA. In the absence of inducible VT or negative TWA, patients were considered to be low ris ...
Shox2 mediates Tbx5 activity by regulating Bmp4 in the pacemaker
... and homeobox-containing gene families (1). Different family members have been implicated in vertebrate heart tissue patterning and differentiation. In early stages of development, the heart is a slow conducting linear tube. During embryogenesis, the primitive tube develops into a synchronous and reg ...
... and homeobox-containing gene families (1). Different family members have been implicated in vertebrate heart tissue patterning and differentiation. In early stages of development, the heart is a slow conducting linear tube. During embryogenesis, the primitive tube develops into a synchronous and reg ...
Mathematical model of geometry and fibrous structure of - AJP
... longitudinal planes, has the limitation that both orthogonal planes cannot be studied in a single heart. In summary, there is a clear need to develop improved measurement techniques to characterize cardiac architecture. Moreover, if the data obtained are to be of general use, then they must be reduc ...
... longitudinal planes, has the limitation that both orthogonal planes cannot be studied in a single heart. In summary, there is a clear need to develop improved measurement techniques to characterize cardiac architecture. Moreover, if the data obtained are to be of general use, then they must be reduc ...
Images and Case Reports in Heart Failure
... made to temporarily turn off the LVAD, after full systemic heparinization to an activated clotting time of greater than 300, which the patient tolerated hemodynamically. An arteriogram of the ascending aorta/arch was then performed, and the location of the distal anastomosis of the LVAD outflow graf ...
... made to temporarily turn off the LVAD, after full systemic heparinization to an activated clotting time of greater than 300, which the patient tolerated hemodynamically. An arteriogram of the ascending aorta/arch was then performed, and the location of the distal anastomosis of the LVAD outflow graf ...
A case with pyopericardium and cardiac tamponade
... perforated the ventricular wall and subsequently migrated into the pericardial cavity. In both of these cases, gradual erosion of the atrial or ventricular wall caused by the distal tip of the VA shunt was one of the main sources of the cardiac tamponade. However, to our knowledge, there are no prev ...
... perforated the ventricular wall and subsequently migrated into the pericardial cavity. In both of these cases, gradual erosion of the atrial or ventricular wall caused by the distal tip of the VA shunt was one of the main sources of the cardiac tamponade. However, to our knowledge, there are no prev ...
Tumours of the Heart
... numerous miliary nodules measuring less than 1 mm; in this instance, the term “rhabdomyomatosis” has been used. The most common locations are the left ventricle and ventricular septum, although 30% will have atrial wall or right ventricular involvement {1602}. In contrast to patients with tuberous s ...
... numerous miliary nodules measuring less than 1 mm; in this instance, the term “rhabdomyomatosis” has been used. The most common locations are the left ventricle and ventricular septum, although 30% will have atrial wall or right ventricular involvement {1602}. In contrast to patients with tuberous s ...
Assessment of inpatient multimodal cardiac imaging
... number (31) from site 3. Overall more SPECT studies were performed by GIM than Cardiology (33 vs. 13). All were classifiable using the AUC for SPECT. There were no rarely appropriate studies and few studies that were classified as may be appropriate (2 at site 2 and 1 at site 3). The appropriateness ...
... number (31) from site 3. Overall more SPECT studies were performed by GIM than Cardiology (33 vs. 13). All were classifiable using the AUC for SPECT. There were no rarely appropriate studies and few studies that were classified as may be appropriate (2 at site 2 and 1 at site 3). The appropriateness ...
Death Due to Myocardial Bridging
... ur case was a 30-year-old women. As reports indicated she was found lying on the floor unconscious by her son, and her husband immediately informed healthcare teams, November 27, 2013. Mobile emergency healthcare service 112 arrived at the scene within 30 minutes. Resuscitation was performed about 4 ...
... ur case was a 30-year-old women. As reports indicated she was found lying on the floor unconscious by her son, and her husband immediately informed healthcare teams, November 27, 2013. Mobile emergency healthcare service 112 arrived at the scene within 30 minutes. Resuscitation was performed about 4 ...
High diagnostic accuracy of NT-proBNP for cardiac origin of pleural effusions
... resulting from heart failure from those of other causes is usually made by clinical criteria supported by the finding of a transudative effusion according to the criteria of LIGHT [1] (table 1). However, as these criteria were developed to detect exudative pleural effusions with a high sensitivity f ...
... resulting from heart failure from those of other causes is usually made by clinical criteria supported by the finding of a transudative effusion according to the criteria of LIGHT [1] (table 1). However, as these criteria were developed to detect exudative pleural effusions with a high sensitivity f ...
Rheumatic mitral stenosis in associationwith partial
... anterior cardinal vein, left vertical vein, and left superior vena cava are all synonymous terms, but the last is least cumbersome and certainly more descriptive. CASE HISTORY ...
... anterior cardinal vein, left vertical vein, and left superior vena cava are all synonymous terms, but the last is least cumbersome and certainly more descriptive. CASE HISTORY ...
Transseptal puncture
... developed to gain access to the left atrium (LA) for pressure measurement. Methods to measure left atrial pressure prior to the transseptal approach included direct left atrial puncture through the anterior chest wall, and transbronchial puncture via the left mainstem bronchus (1-B). These methods h ...
... developed to gain access to the left atrium (LA) for pressure measurement. Methods to measure left atrial pressure prior to the transseptal approach included direct left atrial puncture through the anterior chest wall, and transbronchial puncture via the left mainstem bronchus (1-B). These methods h ...
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 ...
The role of NT-proBNP in the diagnostics of isolated diastolic
... Methods and results Sixty-eight symptomatic patients with isolated diastolic dysfunction and preserved left ventricular ejection fraction (LVEF) (50%) and 50 patients with regular left ventricular (LV) function were examined by conventional echocardiography, tissue Doppler imaging (TDI), and left a ...
... Methods and results Sixty-eight symptomatic patients with isolated diastolic dysfunction and preserved left ventricular ejection fraction (LVEF) (50%) and 50 patients with regular left ventricular (LV) function were examined by conventional echocardiography, tissue Doppler imaging (TDI), and left a ...
Straddling Right Atrioventricular Valves in
... case with arterial discordance could descend directly onto the septum without encircling the pulmonary outflow tract. In any case, with double outlet right ventricle the bundle would not be expected to be related to the outflow tract because the left ventricle has no direct outlet. Nonetheless, the ...
... case with arterial discordance could descend directly onto the septum without encircling the pulmonary outflow tract. In any case, with double outlet right ventricle the bundle would not be expected to be related to the outflow tract because the left ventricle has no direct outlet. Nonetheless, the ...
Concentrated sterile solution of 14.9% Potassium Chloride Inj.
... bradycardia, AV blockade and ventricular fibrillation and cardiac arrest. In the ECG there are high, sharp, symmetrical T-waves and, at very high potassium levels, broadening of the QRS complex. The vascular effects are hypotension and centralisation. The neuromuscular symptoms encompass fatigue, we ...
... bradycardia, AV blockade and ventricular fibrillation and cardiac arrest. In the ECG there are high, sharp, symmetrical T-waves and, at very high potassium levels, broadening of the QRS complex. The vascular effects are hypotension and centralisation. The neuromuscular symptoms encompass fatigue, we ...
Fetal Diagnosis and Treatment of
... making an early and accurate assessment of cardiovascular structure as well as diagnosing and treating fetal arrhythmias. • Complete fetal echocardiographic study includes the structural and rhythm analysis using a combination of two-dimensional imaging, Mmode scanning, pulsed- and continuous-wave D ...
... making an early and accurate assessment of cardiovascular structure as well as diagnosing and treating fetal arrhythmias. • Complete fetal echocardiographic study includes the structural and rhythm analysis using a combination of two-dimensional imaging, Mmode scanning, pulsed- and continuous-wave D ...
Inhibition of Dipeptidyl Peptidase-4 Impairs
... butan-2-aminium chloride, designated compound 6b in the study by Edmondson et al. (13), mixed into the HFD (18 mg/kg diet or 3 mg/kg body wt; Merck Laboratories, Rahway, NJ) and also injected daily with saline solution. MK-0626 is from a related yet different structural class than sitagliptin or des ...
... butan-2-aminium chloride, designated compound 6b in the study by Edmondson et al. (13), mixed into the HFD (18 mg/kg diet or 3 mg/kg body wt; Merck Laboratories, Rahway, NJ) and also injected daily with saline solution. MK-0626 is from a related yet different structural class than sitagliptin or des ...
Syncope: Diagnosis and Evidence
... In patients younger than 65 years, noncardiac causes make up approximately 40% of syncope cases, while 20% may be attributed to cardiac abnormalities. In those aged 65 years or older, cardiac causes comprise up to 40% of cases, while noncardiac causes comprise only 20% [23]. In general, syncope in c ...
... In patients younger than 65 years, noncardiac causes make up approximately 40% of syncope cases, while 20% may be attributed to cardiac abnormalities. In those aged 65 years or older, cardiac causes comprise up to 40% of cases, while noncardiac causes comprise only 20% [23]. In general, syncope in c ...
Carotid arterial haemodynamics after mild degrees of lower
... unpredictable amplitude changes in the echo waveform. Newer devices have a high spatial resolution with a better linearity, dynamic range and tracking speed, even in the presence of a low original signalto-noise ratio. The present apparatus was substantially improved by the additional use of measure ...
... unpredictable amplitude changes in the echo waveform. Newer devices have a high spatial resolution with a better linearity, dynamic range and tracking speed, even in the presence of a low original signalto-noise ratio. The present apparatus was substantially improved by the additional use of measure ...
Prospective Evaluation of 18F-Fluorodeoxyglucose Uptake in
... Although the role of the immune system in the pathogenesis of myocardial disease has been established for pathogen-driven diseases such as viral myocarditis, research more recently has focused on the cardiac inflammatory response after AMI as a risk factor for adverse remodeling. Peripheral blood mo ...
... Although the role of the immune system in the pathogenesis of myocardial disease has been established for pathogen-driven diseases such as viral myocarditis, research more recently has focused on the cardiac inflammatory response after AMI as a risk factor for adverse remodeling. Peripheral blood mo ...
Longitudinal Strain Is a Marker of Microvascular Obstruction and
... Results: GLS was evaluable in 97% of the patients, while CGS and RGS could be assessed in 85%. Infarct size significantly correlated with GLS (R = 0.601, p,0.001), RGS (R = 20.405, p = 0.010), CGS (R = 0.526, p = 0.001), ejection fraction (R = 20.699, p,0.001), wall motion score index (WMSI) (R = 0. ...
... Results: GLS was evaluable in 97% of the patients, while CGS and RGS could be assessed in 85%. Infarct size significantly correlated with GLS (R = 0.601, p,0.001), RGS (R = 20.405, p = 0.010), CGS (R = 0.526, p = 0.001), ejection fraction (R = 20.699, p,0.001), wall motion score index (WMSI) (R = 0. ...
Electrocardiography
Electrocardiography (ECG or EKG*) is the process of recording the electrical activity of the heart over a period of time using electrodes placed on a patient's body. These electrodes detect the tiny electrical changes on the skin that arise from the heart muscle depolarizing during each heartbeat.In a conventional 12 lead ECG, ten electrodes are placed on the patient's limbs and on the surface of the chest. The overall magnitude of the heart's electrical potential is then measured from twelve different angles (""leads"") and is recorded over a period of time (usually 10 seconds). In this way, the overall magnitude and direction of the heart's electrical depolarization is captured at each moment throughout the cardiac cycle. The graph of voltage versus time produced by this noninvasive medical procedure is referred to as an electrocardiogram (abbreviated ECG or EKG).During each heartbeat, a healthy heart will have an orderly progression of depolarization that starts with pacemaker cells in the sinoatrial node, spreads out through the atrium, passes through the atrioventricular node down into the bundle of His and into the Purkinje fibers spreading down and to the left throughout the ventricles. This orderly pattern of depolarization gives rise to the characteristic ECG tracing. To the trained clinician, an ECG conveys a large amount of information about the structure of the heart and the function of its electrical conduction system. Among other things, an ECG can be used to measure the rate and rhythm of heartbeats, the size and position of the heart chambers, the presence of any damage to the heart's muscle cells or conduction system, the effects of cardiac drugs, and the function of implanted pacemakers.