Ghsy4y\y45y45y5
... [K+]o. Period-2 rhythms occur when [K+]o is ~13 mM (Figs. 2,7B). In the pig ventricle, alternans has been detected 39 mins post-occlusion (Downar et al., 1977), during which time the average [K+]o in the central ischemic zone is ~711 mM (Hill and Gettes, 1980; Coronel et al., 1988). However, the m ...
... [K+]o. Period-2 rhythms occur when [K+]o is ~13 mM (Figs. 2,7B). In the pig ventricle, alternans has been detected 39 mins post-occlusion (Downar et al., 1977), during which time the average [K+]o in the central ischemic zone is ~711 mM (Hill and Gettes, 1980; Coronel et al., 1988). However, the m ...
THE CARDIAC CYCLE
... The c wave occurs when the ventricles begin to contract; it is caused partly by slight backflow of blood into the atria at the onset of ventricular contraction but mainly by bulging of the A-V valves backward toward the atria because of increasing pressure in the ventricles. The v wave occurs toward ...
... The c wave occurs when the ventricles begin to contract; it is caused partly by slight backflow of blood into the atria at the onset of ventricular contraction but mainly by bulging of the A-V valves backward toward the atria because of increasing pressure in the ventricles. The v wave occurs toward ...
copyright 2002 scientific american, inc.
... could vary the heart rate to match the patient’s activity level. The controller developed by Abiomed is the size of a small paperback; implanted in the patient’s abdomen, it is connected to the artificial heart by wire. Sensors inside the heart measure the pressure of the blood filling the right chamb ...
... could vary the heart rate to match the patient’s activity level. The controller developed by Abiomed is the size of a small paperback; implanted in the patient’s abdomen, it is connected to the artificial heart by wire. Sensors inside the heart measure the pressure of the blood filling the right chamb ...
HRO_Europace_revisionV4 - Spiral
... For this sub-study, only patients with underlying LBBB QRS morphology or complete heart block (and therefore 100% RV pacing) were included. Left bundle branch block was defined as QRS duration above 120ms and typical 12-lead ECG morphology.16 Haemodynamic measurements Blood Pressure (BP) was measure ...
... For this sub-study, only patients with underlying LBBB QRS morphology or complete heart block (and therefore 100% RV pacing) were included. Left bundle branch block was defined as QRS duration above 120ms and typical 12-lead ECG morphology.16 Haemodynamic measurements Blood Pressure (BP) was measure ...
Does Ivabradine Improve Quality of Life in Cardiovascular Disease
... considered a clinical syndrome and should not be considered a single entity.1 One of the most common causes of HF is coronary artery disease (CAD).1 Other risks and causes of HF are dyslipidemia, obesity, type 1 and 2 diabetes, hypertension, arrhythmias, cardiomyopathy, congenital heart defects, and ...
... considered a clinical syndrome and should not be considered a single entity.1 One of the most common causes of HF is coronary artery disease (CAD).1 Other risks and causes of HF are dyslipidemia, obesity, type 1 and 2 diabetes, hypertension, arrhythmias, cardiomyopathy, congenital heart defects, and ...
Department of Transportation
... The more time that passes without treatment to restore blood flow, the greater the damage to the heart. This damage can cause irregular heart rhythms or even sudden cardiac arrest or stopping of the heart beat. Death can result. Coronary artery disease is the chief underlying cause of a heart ...
... The more time that passes without treatment to restore blood flow, the greater the damage to the heart. This damage can cause irregular heart rhythms or even sudden cardiac arrest or stopping of the heart beat. Death can result. Coronary artery disease is the chief underlying cause of a heart ...
Significance of the QX/QT Ratio and the Electrocardiogram
... A double two-step exercise test was performed on a total of 150 normal, young college students and nursing students between 17 and 21 years of age, with no clinical evidence of heart disease; all of them had normal resting electrocardiograms. The electrocardiograms were recorded by the technic of ra ...
... A double two-step exercise test was performed on a total of 150 normal, young college students and nursing students between 17 and 21 years of age, with no clinical evidence of heart disease; all of them had normal resting electrocardiograms. The electrocardiograms were recorded by the technic of ra ...
RPA Newborn Care Guidelines
... babies with abnormal examinations were referred for early diagnosis. The rate of abnormal newborn examination varied from 0% with total anomalous pulmonary venous drainage to 75% of babies with pulmonary stenosis. Of the whole cohort with CHD, 54% were still undiagnosed at 6 weeks and 36% by 12 week ...
... babies with abnormal examinations were referred for early diagnosis. The rate of abnormal newborn examination varied from 0% with total anomalous pulmonary venous drainage to 75% of babies with pulmonary stenosis. Of the whole cohort with CHD, 54% were still undiagnosed at 6 weeks and 36% by 12 week ...
Mechanisms of Slow Ventricular Tachycardias in
... from the exit block of a ventricular tachycardia. The first ectopic beat in each ...
... from the exit block of a ventricular tachycardia. The first ectopic beat in each ...
The ESC Textbook of Cardiovascular Medicine
... investigations, through to comprehensive descriptions of disease processes and pathophysiological states, and finally to the complex interrelationship between the heart and the mind. Each chapter begins with a summary featuring key learning points, and is completed with personal reflections from th ...
... investigations, through to comprehensive descriptions of disease processes and pathophysiological states, and finally to the complex interrelationship between the heart and the mind. Each chapter begins with a summary featuring key learning points, and is completed with personal reflections from th ...
PHYSICAL EXAMINATION OF THE HEART
... STERNOCLEIDOMASTOID MUSCLE • WHY: DIAGNOSE HEART FAILURE, FLUID OVERLOAD, AV BLOCK ...
... STERNOCLEIDOMASTOID MUSCLE • WHY: DIAGNOSE HEART FAILURE, FLUID OVERLOAD, AV BLOCK ...
Right Atrial Lipoma
... JBM. Lipoma intrapericárdico. Arq Bras Cardiol 1991; 56: 309-312. 9. Silveira WL, Nery MW, Soares ECG, et al. Lipoma de átrio direito. Arq Bras Cardiol 2001; 77: 361-4. 10. Diamante L, Lion MF, Moreira AELC, et al. Inversão de aurícula esquerda por lipoma epicárdico: comportamento atípico de um tumo ...
... JBM. Lipoma intrapericárdico. Arq Bras Cardiol 1991; 56: 309-312. 9. Silveira WL, Nery MW, Soares ECG, et al. Lipoma de átrio direito. Arq Bras Cardiol 2001; 77: 361-4. 10. Diamante L, Lion MF, Moreira AELC, et al. Inversão de aurícula esquerda por lipoma epicárdico: comportamento atípico de um tumo ...
Now! - Don`t Fib Yourself
... heart failure, and death Increases a person’s risk for stroke by 4 to 5 times, compared with those without AF—an increased risk of about 5% per year Outcomes related to AF have not improved significantly, despite improvements in healthcare ...
... heart failure, and death Increases a person’s risk for stroke by 4 to 5 times, compared with those without AF—an increased risk of about 5% per year Outcomes related to AF have not improved significantly, despite improvements in healthcare ...
Brugada Syndrome - SADS Foundation
... channel in the heart are the most prevalent. In close to 60% of patients with clinical Brugada Syndrome, a genetic defect may not be identified because additional, as yet undiscovered defects, exist. Our window to this electrical activity of the heart is through an electrocardiogram (ECG). The ECG i ...
... channel in the heart are the most prevalent. In close to 60% of patients with clinical Brugada Syndrome, a genetic defect may not be identified because additional, as yet undiscovered defects, exist. Our window to this electrical activity of the heart is through an electrocardiogram (ECG). The ECG i ...
md-broj 08.qxp - md
... heart. Nevertheless the blood amount coming through the lung into the left heart might not be enough to allow rapid blood aspiration and injection for long period. For this reason additional fluid volume can be added over side-arm. Also hypothermic fluid or medication can be added by this route. The ...
... heart. Nevertheless the blood amount coming through the lung into the left heart might not be enough to allow rapid blood aspiration and injection for long period. For this reason additional fluid volume can be added over side-arm. Also hypothermic fluid or medication can be added by this route. The ...
Ultrasound and Imaging: Are we crossing borders?
... Although in experimental stage , using only analgo-sedation may be an added advantage for performing interventional procedures. ...
... Although in experimental stage , using only analgo-sedation may be an added advantage for performing interventional procedures. ...
Heart Rhythm Services
... risk with a CHADS score less than 1. Patients with several risk factors (age >75 years, hypertension, diabetes, prior stroke or transient ischemic attack, left ventricular dysfunction) are at higher risk, necessitating anticoagulation therapy with warfarin. This recommendation is based on an extensi ...
... risk with a CHADS score less than 1. Patients with several risk factors (age >75 years, hypertension, diabetes, prior stroke or transient ischemic attack, left ventricular dysfunction) are at higher risk, necessitating anticoagulation therapy with warfarin. This recommendation is based on an extensi ...
ไม่มีชื่อเรื่องภาพนิ่ง
... Definition of Terms “Atherosclerosis” is a special type of thickening and hardening of medium - sized and large arteries because of deposits of a fatty substance. ...
... Definition of Terms “Atherosclerosis” is a special type of thickening and hardening of medium - sized and large arteries because of deposits of a fatty substance. ...
Right ventricular function in critically ill patients
... with distended jugular veins, hypotension and clear lungs. Electrocardiography (ECG) can indicate RV hypertrophy, but its specificity and sensitivity is low. The same is true for the typical ECG signs (S1Q3T3) of acute RV overload in pulmonary embolism (8). Nevertheless, the right precordial ECG lea ...
... with distended jugular veins, hypotension and clear lungs. Electrocardiography (ECG) can indicate RV hypertrophy, but its specificity and sensitivity is low. The same is true for the typical ECG signs (S1Q3T3) of acute RV overload in pulmonary embolism (8). Nevertheless, the right precordial ECG lea ...
Acute Coronary Syndromes - the Australian Resuscitation Council
... In patients with suspected ACS there are a variety of imaging techniques which may be utilised to diagnose acute coronary syndrome. These include CT angiography, MRI, nuclear cardiography and echocardiography64-78. A non-invasive test may be considered in selective patients who present to the ED wit ...
... In patients with suspected ACS there are a variety of imaging techniques which may be utilised to diagnose acute coronary syndrome. These include CT angiography, MRI, nuclear cardiography and echocardiography64-78. A non-invasive test may be considered in selective patients who present to the ED wit ...
Strain Rate Imaging
... • ‘Speckles’ are small dots or groups of myocardial pixels that are created by the interaction of ultrasonic beams and the myocardium. • Considered as acoustic fingerprint for that region. • This enables to judge the direction of movement, the speed of such movement, and the distance of such movemen ...
... • ‘Speckles’ are small dots or groups of myocardial pixels that are created by the interaction of ultrasonic beams and the myocardium. • Considered as acoustic fingerprint for that region. • This enables to judge the direction of movement, the speed of such movement, and the distance of such movemen ...
Tasers -Circulation-2012-Zipes-2417-22
... Background—The safety of electronic control devices (ECDs) has been questioned. The goal of this study was to analyze in detail cases of loss of consciousness associated with ECD deployment. Methods and Results—Eight cases of TASER X26 ECD–induced loss of consciousness were studied. In each instance ...
... Background—The safety of electronic control devices (ECDs) has been questioned. The goal of this study was to analyze in detail cases of loss of consciousness associated with ECD deployment. Methods and Results—Eight cases of TASER X26 ECD–induced loss of consciousness were studied. In each instance ...
The Non Invasive Assessment of Risk of Sudden Death
... the question of whether such patients should undergo routine ambulatory monitoring to screen for NSVT. Such monitoring would pose an enormous burden on the health care system (63, 65). There are not currently guidelines recommending routine ambulatory monitoring in post MI patients (22). As is menti ...
... the question of whether such patients should undergo routine ambulatory monitoring to screen for NSVT. Such monitoring would pose an enormous burden on the health care system (63, 65). There are not currently guidelines recommending routine ambulatory monitoring in post MI patients (22). As is menti ...
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.