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Cardioverter defibrillator therapy in the primary and secondary
Cardioverter defibrillator therapy in the primary and secondary

... who benefit from an ICD (1, 2, 14, 15). Non-ischemic dilated cardiomyopathy. For chronic heart failure of non-ischemic origin, existing clinical trial data are more heterogeneous. DEFINITE was the largest respective trial, enrolling nearly 500 individuals with non-ischemic dilated cardiomyopathy and ...
Risk for Incident Heart Failure: A Subject‐Level Meta‐Analysis From
Risk for Incident Heart Failure: A Subject‐Level Meta‐Analysis From

... Methods and Results-—Three studies with elderly persons (Health Aging and Body Composition [Health ABC], Valutazione della PREvalenza di DIsfunzione Cardiaca asinTOmatica e di scompenso cardiaco [PREDICTOR], and Prospective Study of Pravastatin in the Elderly at Risk [PROSPER]) were included to deve ...
FAMILY  STUDY Cardiovascular Disease in American Indians (Phase IV)
FAMILY STUDY Cardiovascular Disease in American Indians (Phase IV)

... The general approach to surveillance at each center is to divide the total number of participants into twelfths from a listing of surviving Phase I participants, ordered by calendar time from least to most recent exam date. This would result in an approximately equal distribution of participants acr ...
Therapeutic Hypothermia
Therapeutic Hypothermia

... – 776 some other rhythm ...
Birger Axelsson - Umeå universitet
Birger Axelsson - Umeå universitet

... from the cover of this thesis this seems to have been important even around 3260 years ago though the measuring methods and the reason for measuring were of course a bit different. To find out if the deceased person was worthy to enter the afterlife world his or her heart had to be evaluated by weig ...
Pacemaker Patient Information Booklet
Pacemaker Patient Information Booklet

Common Congenital Heart Disorders in Adults
Common Congenital Heart Disorders in Adults

... to co-existence of two diseases, namely ASD and primary pulmonary hypertension. Dr. Gary Webb: As a general rule, the mean pulmonary artery pressure in patients with ASD could be expected to be half the patient’s chronologic age. When more substantial pulmonary hypertension is present, another diagn ...
Optimal Power Generation by the Left Ventricle
Optimal Power Generation by the Left Ventricle

... SUMMARY. We studied the interaction of the left ventricle and the systemic arterial bed in the open thorax cat. In the steady state, the ventricle can be characterized by the pump function graph (i.e., the relationship between mean left ventricular pressure and mean outflow). From this pump function ...
Cordeiro et al. Am J Physiol Heart Circ Physiol
Cordeiro et al. Am J Physiol Heart Circ Physiol

... • 1d may already have been looked at by Roy – If so, could look at other factors such as contractility ...
Hyperoxia causes oxygen free radical
Hyperoxia causes oxygen free radical

... ECMO or CPB, systemic oxygen levels can reach an arterial PO2 (PaO2) of up to 500 mmHg, which can last several days during extracorporeal membrane oxygenation or for 2–5 h during a cardiac operation (1, 35). The original rationale for the use of hyperoxia was to ensure adequate oxygen delivery, assu ...
CAUSE: Cardiac arrest ultra-sound exam
CAUSE: Cardiac arrest ultra-sound exam

... pulmonary emboli, he found that right sided enlargement in this patient population demonstrated a sensitivity of 0.70 and a specificity of 0.86 for diagnosing acute pulmonary emboli when a threshold of 25 mm was used.23 Miniati et al. performed a prospective study in 110 consecutive patients with su ...
Afro-Caribbean Heart Failure in the UK
Afro-Caribbean Heart Failure in the UK

... The clinical features of biopsy-proven ATTR V122I amyloidosis A total of 72 ATTR V122I patients with histological corroboration were reviewed at the UK National Amyloidosis Centre between January 1995 and March 2013, including the 18 SGH patients (Table 2). Cardiac biopsies were obtained in 39 pati ...
Heart rate variability during simulated hemorrhage with lower body
Heart rate variability during simulated hemorrhage with lower body

... potentially provide information regarding cardiovascular status, the utility of HRV as a pre-hospital triage assist tool is the focus of many investigations (Cooke et al., 2006a,b; Batchinsky et al., 2007a; Cancio et al., 2008; Ryan et al., 2011). One criterion for the development of accurate and ti ...
Journal Review-CRT
Journal Review-CRT

... All-cause, cardiac, and HF hospitalization rates were significantly reduced in both CRT arms compared to medical therapy alone observed within days or weeks of CRT initiation and was sustained throughout the trial ...
effect of temperature on cardiac vagal action in the toad bufo marinus
effect of temperature on cardiac vagal action in the toad bufo marinus

Ventricular stroke work and efficiency both remain nearly optimal
Ventricular stroke work and efficiency both remain nearly optimal

... resistance divided by cardiac cycle length (24, 25). These two parameters were used to determine a ventricular-to-vascular coupling ratio (EJE,,), as previously described by Sunagawa and colleagues (25). To guarantee that a sufficient range of coupling ratios was assessed in each heart, E,, was firs ...
Diastology: What the Radiologist Needs to Know. Objectives LV
Diastology: What the Radiologist Needs to Know. Objectives LV

... valvular abnormalities on echocardiography. ...
None But The Lethal Heart
None But The Lethal Heart

... syndrome olwfs horse exhibiting the frame overo pattern none edit on, directed energy weapon wikipedia - a directed energy weapon it had little detectable effect on malleable organs such as the heart a non lethal directed energy weapon developed by the u s, arrhythmia ventricle heart heart - arrhyth ...
Counterpulsation applied
Counterpulsation applied

... responsible for the care of patients needing Intra-Aortic Balloon Pump (IABP) therapy. The participants should have a basic understanding of cardiac anatomy, physiology and hemodynamics. Participants should have experience with hemodynamic monitoring and its implications. Information and instruction ...
Syncopal Attacks Imitating Epileptic Seizures
Syncopal Attacks Imitating Epileptic Seizures

... Morbidity and mortality is up to 50% within the first 3 years following the initial attack, and it is cause-dependent. Palpitations, chest pain, shortness of breath, extreme fatigue or other features of cardiovascular insufficiency occur with other presyncopal symptoms of simple faints. Cardiac syncop ...
Beneficial Effect of Continuous Normobaric Hypoxia on Ventricular
Beneficial Effect of Continuous Normobaric Hypoxia on Ventricular

... heart against ischemia/reperfusion injury but much less is known about its potential therapeutic effects. The aim of this study was to find out whether post-infarction exposure to CNH can attenuate the progression of heart failure. Ten-week-old male rats underwent myocardial infarction (MI) or sham ...
Anatomical Variants of Coronary Venous System on Cardiac
Anatomical Variants of Coronary Venous System on Cardiac

... Background:  In a few studies, huge anatomical variability of coronary venous system (CVS) has been documented without analysis of its variants. The aim of the present study was to evaluate anatomical variants of CVS in multislice computed tomography (MSCT). Methods and Results:  In 199 patients (11 ...
Recruitment of Patients
Recruitment of Patients

... overall execution of the trial, and inquiries related to the protocol or the patients were directed to either coordinating center. An independent Data and Safely Monitoring Board was responsible for decisions about the safe conduct and continuation of the trial. ...
Early Fetal Echocardiography at the Time of 11 –13 Weeks Scan
Early Fetal Echocardiography at the Time of 11 –13 Weeks Scan

... ultrasound fetal assessment, which in most of the countries interferes with nuchal scan between 11 +0–13+6. This approach increases detection rate of CHDs in the first trimester to nearly 60-80%.3,6 Additional reasons to perform EFE at the nuchal scan are: CHDs are the commonest anomalies (approx 33 ...
Complete thoracic ectopia cordis
Complete thoracic ectopia cordis

... defects like ASD, VSD, LVD and TOF can be repaired at this time. Moreover, defects like ASD or VSD may have resolved spontaneously. Reduction of the heart into a small thoracic cavity in the neonatal period often produces compression, kinking of the great vessels and a low cardiac output [2,8]. Howe ...
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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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