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Time course of sinus node function recovery in patients with sinus
Time course of sinus node function recovery in patients with sinus

... hemodynamic compromise (as determined by the post-operative clinicians) or symptoms; persistent heart rate < 90 in children under 2 years of age, < 80 between 2-5 years, < 70 between 5-12 years and < 60 between 12-15 years of age. For children 16 and older, a heart rate under 50 beats per minute wil ...
Diapositivo 1
Diapositivo 1

... • Identifying AMI signals (retrosternal discomfort or dyspnea, for example) with subsequent activation of the emergency number is the first step towards a speedy and effective action leading to a reduction of injuries and consequent harm to the patient. ...
information analysis of restructural heart ventricles peculiarities
information analysis of restructural heart ventricles peculiarities

... cardiomyocites space changes of the affected heart parts and interrelations between them information analysis has been used to define entropy, relative entropy and redundancy. Euthanasia of experimental animals was carried out by bloodletting under the tiopenthaloval anesthesia. The parts of the le ...
cardiac cycle
cardiac cycle

... electrical currents that can be detected at the surface of the body. A recording of the electrical changes that accompany each cardiac cycle (heartbeat) is called an electrocardiogram (ECG or EKG). • The ECG helps to determine if the conduction pathway is abnormal, if the heart is enlarged, and if c ...
Examination of the Heart3
Examination of the Heart3

... and then striking the flexed finger at the distal end of the first phalanx. ...
Spontaneous resolution of ventricular tachycardia with right bundle
Spontaneous resolution of ventricular tachycardia with right bundle

... with no apparent structural heart disease is termed idiopathic VT, which could be either right ventricular or left ventricular in origin. Idiopathic left VT has the morphology of a RBBB with a leftward axis. The origin of the VT is usually at the inferior left ventricular midseptum or apex in the re ...
Morphological features of the P-waves at surface electrocardiogram
Morphological features of the P-waves at surface electrocardiogram

... Holter studies were obtained at 3- and 12-month period after the operation. All available clinical data from visits not performed in our institute, including ECG and Holter exams, were obtained. Patients were included in this current analysis if: (i) sinus rhythm without conduction disorders that re ...
Mitral valve replacement
Mitral valve replacement

... 3. LV dilated and ending by failure if the regurge is severe & prolonged. 4. LV failure leading to pulmonary congestion and if this is prolonged , pulmonary hypertension occurs 5. Atrial fibrillation may occur due to LA dilatation ...
Print this article - University of Edinburgh Open Journals
Print this article - University of Edinburgh Open Journals

... Triple rhythm signifies that three heart sounds can be heard instead of the usual two and therefore this term should not be used to include splitting of the first or second heart sounds nor for extra-cardiac sounds. The added sound of true triple rhythm falls during diastole. The extra sounds or "cl ...
Pediatric Advanced Life Support
Pediatric Advanced Life Support

... sodium bicarbonate may be administered IV. The drug is not as stable in the pediatric population but is often used during the resuscitative phase of CPR. ...
Transcripts/4_6 2
Transcripts/4_6 2

... d. The atrioventricular node (AV) located in the interatrial septum, near the opening of the coronary sinus e. From the AV node the impulse spreads via the atrioventricular bundle (bundle of His) 1. The AV bundle runs along the edge of the membranous part of the interventricular septum 2. The most c ...
as PDF
as PDF

... team of cardiologists or surgeons. Before discharge, careful evaluation of the pacing system is required. Diagnosis of malfunction is not always evident. Most of the patients needed an invasive procedure or medical intervention to prevent further morbidity. Through practical clinical examples, we ai ...
ECE_BioTech
ECE_BioTech

... • Stability analysis of the system performed. Stability ...
Atrial tachycardia
Atrial tachycardia

... AVRT: Catheter ablation of accessory pathway Radio frequency ablation of the accessory pathway is often indicated in patients with WPW who are at risk of sudden death due to atrial fibrillation with a ...
Cardio - It`s Good For Your Heart
Cardio - It`s Good For Your Heart

... to learn more about risk free health screenings, including a fullhealthy. lipid profile, health for heart disease and keeping your heart If you need information and the AmeriHeart, a walk-through interactive help locating a primary care physician, call the Healthy Hotline exhibit. In order to obtain ...
Decreased Cardiac Output
Decreased Cardiac Output

4 Decisions Driving Growth - Croydon Health Services NHS Trust
4 Decisions Driving Growth - Croydon Health Services NHS Trust

... Preserved LV G583 ...
Inside Physio
Inside Physio

... Although a single shock works for the majority of patients, many others need more than one shock. “When we look at the scientific literature, we see that some studies report a first shock success rate in the 90% range, while others are in the 70% range,” Chapman says. “If it’s in the 70% range, that ...
Chap 23 — CV System, Part 1
Chap 23 — CV System, Part 1

...  All cells must – receive nutrients, ...
Sustained ventricular tachycardia in structural heart disease
Sustained ventricular tachycardia in structural heart disease

... tachycardia (VT) occurs, being reentry the predominant mechanism. Other cardiac conditions, such as idiopathic dilated cardiomyopathy, Chagas disease, sarcoidosis, arrhythmogenic cardiomyopathies, and repaired congenital heart disease may also present with VT in follow-up. Analysis of the 12-lead el ...
Dare, P
Dare, P

... He takes water pills so he can pee. His big bass voice, which used to sing hymns, is barely audible. A new heart is his last chance. He's been close before. Two years ago, the call came from the Heart Institute. "It was such a dramatic feeling," says Jack. An hour later the institute called again af ...
circulatory systems
circulatory systems

... – remove wastes. ...
Printable Version - Library - University Hospitals of Leicester
Printable Version - Library - University Hospitals of Leicester

... ABNORMAL HEART RHYTHM ie TACHYCARDIA Occasionally, electrical signals arise in areas of the heart away from the normal pacemaker (sino-atrial node). This may be in the atria (atrial ectopic beats or atrial fibrillation), atrioventricular node (AV nodal tachycardia) or ventricles (ventricular ectopic ...
Role of Biological Sex in Normal Cardiac Function and in its
Role of Biological Sex in Normal Cardiac Function and in its

... underrepresented in clinical trial [13] which may be due to their poor enrolment. Further women generally do not develop cardiovascular disease until older age. However, women do not always fare better than men. They tend to have a poor prognosis in case of dilated cardiomyopathy [14]. Women are mor ...
CARDIOVASCULAR SYSTEM PHYSIOLOGY AND MANIFISTATIONS
CARDIOVASCULAR SYSTEM PHYSIOLOGY AND MANIFISTATIONS

... ventricular diastole, these valves prevent back flow of blood from the arteries into the ventricles (as these valves become closed during ventricular diastole). ...
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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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