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Doppler Tissue Imaging to Assess Systolic Function in Chagas
Doppler Tissue Imaging to Assess Systolic Function in Chagas

... nation of the diastolic function and pulmonary arterial pressure, which are extremely important data in a general cardiac assessment, cannot be measured with this technique. The introduction of the 2-dimensional and Doppler techniques provided important additional information for the assessment of c ...
85 Study of Left Ventricular Diastolic Function in
85 Study of Left Ventricular Diastolic Function in

... very common in patients with DM. Its prevalence is related to age and duration of the disease while severity has a tendency towards these two variables but demonstrated no significant statistical value. Early detection of LVDD may have important diagnostic, prognostic and therapeutic implications Li ...
Renin-Angiotensin-Aldosterone System Activation During
Renin-Angiotensin-Aldosterone System Activation During

... RAAS activation and incident WRF, which itself has also been associated with worse outcome (7). However, recent evidence has clearly demonstrated that a small increase in serum creatinine concentration is unlikely to portend worse prognosis if thorough decongestion can be achieved and that the same ...
Image quality and radiation dose of dual
Image quality and radiation dose of dual

... Background: All studies involving use of ionizing radiation should be performed in accordance with the ALARA (As Low As Reasonably Achievable) principle, especially in children. In this study, the prospective ECG triggering technique with low voltage was used in dual-source computed tomography (DSCT ...
Heart Murmurs in Dogs - Kingsbrook Animal Hospital
Heart Murmurs in Dogs - Kingsbrook Animal Hospital

... If your pet is still a young puppy and the murmur is of low intensity, your veterinarian may recommend a re-examination in a few weeks time to track whether the murmur has decreased in intensity or disappeared, indicating that it was likely an innocent murmur. Similarly, if your adult dog appears to ...
Right ventricular dilated cardiomyopathy - Heart
Right ventricular dilated cardiomyopathy - Heart

... extrasystoles that were only partially suppressed by quinidine, mexiletine, or propranolol. Amiodarone was successful in suppressing ventricular arrhythmias in three patients seen at a later date. In two patients (cases 12 and 13) intracardiac recordings were obtained. Case 12 was a 19 year old man ...
Copeptin in patients with heart failure and preserved ejection
Copeptin in patients with heart failure and preserved ejection

... copeptin in HFPEF is elevated, associated with diastolic dysfunction and N-terminal pro-brain natriuretic peptide (NT-proBNP) and predictive of HF hospitalisation and mortality. Methods and analysis: In a prospective observational substudy of the The Karolinska Rennes (KaRen) 86 patients with sympto ...
What Is Coronary Artery Bypass Grafting? Overview
What Is Coronary Artery Bypass Grafting? Overview

... Allowing you to resume a more active lifestyle Improving the pumping action of your heart if it has been damaged by a heart attack Lowering the risk of a heart attack (in some patients, such as those who have diabetes) Improving your chance of survival ...
Ventricular fibrillation: evolution of the multiple
Ventricular fibrillation: evolution of the multiple

... the myocardium, forming non-sustained re-entry loops. Occasionally, wavelets disappear when they collide with another wavelet or with the boundary. They can also break up, producing daughter wavelets after they encounter refractory cells. Moe’s simulations showed that such irregular activity can be ...
Stable Microreentrant Sources as a Mechanism of Atrial
Stable Microreentrant Sources as a Mechanism of Atrial

... At selected sites, 14 bipoles were placed (Figure 1) over the epicardium and endocardium of both atria, as follows: Bachmann’s bundle left and right (n51 each); RA free wall (n51); region around the PV ostium (in the sheep heart, the PVs come together to a common ostium that opens into the posterior ...
Inflow Valve Regurgitation During Left Ventricular Assist Device
Inflow Valve Regurgitation During Left Ventricular Assist Device

... Routine pretransplantation evaluation for all patients included echocardiography and right heart catheterization. Data obtained from these studies were used to ...
Dual-source cardiac computed tomography
Dual-source cardiac computed tomography

... fibrillation has been anecdotally reported (see Fig. 4) [29]. However, no sufficiently large trials about the accuracy of DSCT coronary angiography in patients with atrial fibrillation or other arrhythmias are currently available and it remains to be determined whether such promising initial results ...
1 - Jordan University of Science and Technology
1 - Jordan University of Science and Technology

... 6. Recognize the characteristics of microorganisms that cause infection of the cardiovascular system, their pathogenicity and methods of identification. 7. Be familiar with the more common types of blood vessels and heart diseases with emphasis on (etiology, mechanism, morphology and briefly to corr ...
Chapter on Heart Disease
Chapter on Heart Disease

... be noted in several dog breeds but is most commonly seen in Doberman Pinschers, and current research is helping to define a genetic basis for this condition. Idiopathic DCM is also seen rarely in the cat. Some clinicians feel that idiopathic DCM may be the longterm result of unidentified viral infec ...
Prevalence of myocardial infarction in congestive heart failure
Prevalence of myocardial infarction in congestive heart failure

... heart failure using the Framingham criteria is based on either two major criteria or one major criterion with two minor criteria in the diagnosis of congestive heart failure [3]. In 1998, Mihai G and the Board conducted a review of research related to heart failure (Chronic Heart Failure in the Unit ...
high total leukocyte count and heart failure after myocardial infarction
high total leukocyte count and heart failure after myocardial infarction

... development.6,7,8 Inflammatory biomarkers have been identified as an important tool for post myocardial infarction risk stratification.9,10 Heart failure biomarkers can be categorized empirically as neurohormonal mediators, markers of myocyte injury and remodeling like BNP (Brain Type Natruretic Pep ...
How are arrhythmias managed in the paediatric population in
How are arrhythmias managed in the paediatric population in

... vast majority of paediatric arrhythmias concerns children older than 1 year and patients with grown-up congenital heart disease. In 65% of the hospitals there is a specialized paediatric centre, and the most commonly observed arrhythmias include Wolff-Parkinson-White syndrome and atrioventricular no ...
Sudden Cardiac Death in Heart Failure
Sudden Cardiac Death in Heart Failure

... A single centre retrospective study over a 6 months period including patients < 80 years old, who were enrolled in our heart failure clinical care pathway was performed. Demographics including gender, age, LVEF and HF aetiology were analysed. The prevalence of ICD implantation in patients enrolled i ...
Implantable Cardioverter Defibrillator (ICD)
Implantable Cardioverter Defibrillator (ICD)

... The Federal Employee Health Benefit Program (FEHBP/FEP) requires that procedures, devices or laboratory tests approved by the U.S. Food and Drug Administration (FDA) may not be considered investigational and thus these procedures, devices or laboratory tests may be assessed only on the basis of thei ...
Review on CFD simulation in heart with dilated cardiomyopathy and
Review on CFD simulation in heart with dilated cardiomyopathy and

... Hemodynamics within the heart chamber can be indicative of exert cardiac health. Due to the limitations of current cardiac imaging modalities, computational fluid dynamics (CFD) have been widely used for the purposes of cardiac function assessment and heart disease diagnosis, as they provide detailed ...
When Oxygen Goes Bad or How Not to Kill a Small Child with O2
When Oxygen Goes Bad or How Not to Kill a Small Child with O2

... The higher the ratio, the higher the demand on the heart So, a Qp:Qs of 2:1 means that the heart is pumping about 3 “cardiac outputs” It must maintain such a high output in an attempt to allow for acceptable systemic oxygen delivery ...
Independent and additive prognostic value of right ventricular
Independent and additive prognostic value of right ventricular

... receiving infusion therapy with dopamine, dobutamine or phosphodiesterase inhibitors at presentation were also excluded. All patients underwent right heart catheterization as part of the diagnostic protocol for heart transplantation eligibility. Medical therapy was individually adjusted according to ...
Mammalian Heart and Blood Vessels
Mammalian Heart and Blood Vessels

... work by Dr. S. Girod, Anton Becker; scale-bar data from Matt Russell) ...
PDF - World Wide Journals
PDF - World Wide Journals

... associated with persistent left superior vena cava and coronary sinus dilatation. Ultrasound Obstet Gynecol 2003; 22 (5): 527–30. | 2. Pasquini L, Belmar C, Seale A, Gardiner HM. Prenatal diagnosis of absent right and persistent left superior vena cava. Prenat Diagn 2006; 26 (8): 700–2. | 3. Berg C, ...
Diastolic Heart Failure Demystified - CHEST Journal
Diastolic Heart Failure Demystified - CHEST Journal

... explanation satisfying both theoretical and clinical observations; (2) contrary to general perception, DHF is no more vulnerable to diuretic-induced hypotension than systolic HF; (3) heart rate reduction should not yet be considered an established therapeutic goal in DHF; (4) since HF is HF whether ...
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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.
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