Secundum atrial septal defect in the adult. Clinical
... adult healthy volunteers, were only examined with MRvm. In a phantom study using an artificial shunt, flow assessed by MRvm was compared with the flow rate measured by means of a beaker and timer. 2) In 35 adult ASD patients (μ=53 years) and in 35 age- and sex-matched controls P-wave duration and P- ...
... adult healthy volunteers, were only examined with MRvm. In a phantom study using an artificial shunt, flow assessed by MRvm was compared with the flow rate measured by means of a beaker and timer. 2) In 35 adult ASD patients (μ=53 years) and in 35 age- and sex-matched controls P-wave duration and P- ...
Management of atrial fibrillation-Review
... and effective alternative. For use of intravenous amiodarone, an initial loading dose followed by a maintaining dose of infusion (webtable 2) should be given via a central venous line to avoid thrombophlebitis. The potential side-effects of intravenous amiodarone include hypotension and bradycardia. I ...
... and effective alternative. For use of intravenous amiodarone, an initial loading dose followed by a maintaining dose of infusion (webtable 2) should be given via a central venous line to avoid thrombophlebitis. The potential side-effects of intravenous amiodarone include hypotension and bradycardia. I ...
2001 The European Society of Cardiology
... The American College of Cardiology (ACC) and the American Heart Association (AHA) have jointly engaged in the production of such guidelines in the area of cardiovascular disease since 1980. The ACC/AHA Task Force on Practice Guidelines, whose charge is to develop and revise practice guidelines for i ...
... The American College of Cardiology (ACC) and the American Heart Association (AHA) have jointly engaged in the production of such guidelines in the area of cardiovascular disease since 1980. The ACC/AHA Task Force on Practice Guidelines, whose charge is to develop and revise practice guidelines for i ...
Secundum atrial septal defect in the adult. Clinical
... adult healthy volunteers, were only examined with MRvm. In a phantom study using an artificial shunt, flow assessed by MRvm was compared with the flow rate measured by means of a beaker and timer. 2) In 35 adult ASD patients (μ=53 years) and in 35 age- and sex-matched controls P-wave duration and P- ...
... adult healthy volunteers, were only examined with MRvm. In a phantom study using an artificial shunt, flow assessed by MRvm was compared with the flow rate measured by means of a beaker and timer. 2) In 35 adult ASD patients (μ=53 years) and in 35 age- and sex-matched controls P-wave duration and P- ...
8 Heart Murmurs Part II
... ductus arteriosus, the excess pulmonary flow due to the left-to-right shunt is added onto the normal pulmonary venous return. In these two conditions with left-to-right shunt, the left atrial v wave pressure may still be normal as long as the left ventricular diastolic function is preserved and its ...
... ductus arteriosus, the excess pulmonary flow due to the left-to-right shunt is added onto the normal pulmonary venous return. In these two conditions with left-to-right shunt, the left atrial v wave pressure may still be normal as long as the left ventricular diastolic function is preserved and its ...
Molecular distinction between physiological and pathological
... heart failure (Levy et al., 1990). Cardiac hypertrophy is also an independent risk factor for myocardial infarction, arrhythmia and sudden death (Levy et al., 1990). In response to a chronic increase in load, there is an initial increase in heart mass to normalize wall stress and permit normal cardi ...
... heart failure (Levy et al., 1990). Cardiac hypertrophy is also an independent risk factor for myocardial infarction, arrhythmia and sudden death (Levy et al., 1990). In response to a chronic increase in load, there is an initial increase in heart mass to normalize wall stress and permit normal cardi ...
Should All Patients With Heart Block Receive Biventricular Pacing?
... pacing are mostly retrospective in nature involve a small to moderate sample size (n=55–304) and encompass a wide range of follow-up (1–7.8 years; Table I in the Data Supplement).1–6 Most of these studies were conducted in patients with AF and subsequent RV pacing after atrioventricular node (AVN) a ...
... pacing are mostly retrospective in nature involve a small to moderate sample size (n=55–304) and encompass a wide range of follow-up (1–7.8 years; Table I in the Data Supplement).1–6 Most of these studies were conducted in patients with AF and subsequent RV pacing after atrioventricular node (AVN) a ...
as a PDF - Lettre de l`UFCV N°58
... and will be considered current unless the task force revises or withdraws them from distribution. The ACC/AHA/ESC Committee to Develop Guidelines for the Management of Patients With Atrial Fibrillation conducted a comprehensive review of the relevant literature from 1980 to June 2000. Literature ...
... and will be considered current unless the task force revises or withdraws them from distribution. The ACC/AHA/ESC Committee to Develop Guidelines for the Management of Patients With Atrial Fibrillation conducted a comprehensive review of the relevant literature from 1980 to June 2000. Literature ...
Anomalous Origin of the Left Anterior Descending Artery: A Report of
... A 75-year-old man with a history of hypertension presented to the emergency room with acute pulmonary edema. His medical history revealed no established coronary heart disease. He described 2 months of increasing shortness of breath and dyspnea on exertion. He also complained of increasing orthopnea ...
... A 75-year-old man with a history of hypertension presented to the emergency room with acute pulmonary edema. His medical history revealed no established coronary heart disease. He described 2 months of increasing shortness of breath and dyspnea on exertion. He also complained of increasing orthopnea ...
Anomalous Origin of the Left Anterior Descending Artery: A Report of
... A 75-year-old man with a history of hypertension presented to the emergency room with acute pulmonary edema. His medical history revealed no established coronary heart disease. He described 2 months of increasing shortness of breath and dyspnea on exertion. He also complained of increasing orthopnea ...
... A 75-year-old man with a history of hypertension presented to the emergency room with acute pulmonary edema. His medical history revealed no established coronary heart disease. He described 2 months of increasing shortness of breath and dyspnea on exertion. He also complained of increasing orthopnea ...
Pulmonary atresia with intact ventricular septum
... the last menstruation, which means that two weeks are added to the age of the embryo. In the present description, the age of the embryo is used. During weeks three to eight there is a rapid development from an embryonic disc with three layers to a human being with a complete set of organs. This peri ...
... the last menstruation, which means that two weeks are added to the age of the embryo. In the present description, the age of the embryo is used. During weeks three to eight there is a rapid development from an embryonic disc with three layers to a human being with a complete set of organs. This peri ...
Paper Questionnaire (For PCI Not Enable Hospital)
... Acute Coronary Syndrome with definite ECG changes and/or enzyme elevation Suspected of Unstable Angina but without definite ECG changes or elevation of cardiac enzymes. Suspected case of ACS but no definite ECG changes and no ENZYME elevation. However the patient has a definite history of any one or ...
... Acute Coronary Syndrome with definite ECG changes and/or enzyme elevation Suspected of Unstable Angina but without definite ECG changes or elevation of cardiac enzymes. Suspected case of ACS but no definite ECG changes and no ENZYME elevation. However the patient has a definite history of any one or ...
2003 The European Society of Cardiology
... be focused on the detection of other cardiac or non-cardiac causes of the presenting symptoms. A working diagnosis of myocardial infarction must first be made. This is usually based on the history of severe chest pain lasting for 20 min or more, not responding to nitroglycerine. Important clues are ...
... be focused on the detection of other cardiac or non-cardiac causes of the presenting symptoms. A working diagnosis of myocardial infarction must first be made. This is usually based on the history of severe chest pain lasting for 20 min or more, not responding to nitroglycerine. Important clues are ...
Management of acute myocardial infarction in patients presenting
... be focused on the detection of other cardiac or non-cardiac causes of the presenting symptoms. A working diagnosis of myocardial infarction must first be made. This is usually based on the history of severe chest pain lasting for 20 min or more, not responding to nitroglycerine. Important clues are ...
... be focused on the detection of other cardiac or non-cardiac causes of the presenting symptoms. A working diagnosis of myocardial infarction must first be made. This is usually based on the history of severe chest pain lasting for 20 min or more, not responding to nitroglycerine. Important clues are ...
Coronary arteries in tutorial revision: from normal variants to
... - So, during or immediately after intense/extreme exercise, there is risk of sudden death (till 30%). -"In addition, some interarterial coronaries actually take an intramural course through the wall of the aorta, which may cause them to be compressed during aortic pulsation" Young, P.M. AJR 2011; 1 ...
... - So, during or immediately after intense/extreme exercise, there is risk of sudden death (till 30%). -"In addition, some interarterial coronaries actually take an intramural course through the wall of the aorta, which may cause them to be compressed during aortic pulsation" Young, P.M. AJR 2011; 1 ...
Treatment-Specific Approaches for Analysis and Control of
... A Left Ventricular Assist Device (LVAD) is a mechanical pump that helps patients with heart failure conditions. This rotary pump works in parallel to the ailing heart and provides an alternative path for blood flow from the weak left ventricle to the aorta. The LVAD is controlled by the power suppli ...
... A Left Ventricular Assist Device (LVAD) is a mechanical pump that helps patients with heart failure conditions. This rotary pump works in parallel to the ailing heart and provides an alternative path for blood flow from the weak left ventricle to the aorta. The LVAD is controlled by the power suppli ...
A Rare Case of Congenital Coronary Artery Fistula Evaluated by
... demonstrate dilatation of the involved coronary artery, the tortuous nature of the dilated fistula, blood flow within the fistula and its communication with right atrium. Coronary artery fistulas are among the rare anomalies of coronary arteries. Role of angiography is well established in identifica ...
... demonstrate dilatation of the involved coronary artery, the tortuous nature of the dilated fistula, blood flow within the fistula and its communication with right atrium. Coronary artery fistulas are among the rare anomalies of coronary arteries. Role of angiography is well established in identifica ...
2011 ACCF/AHA Guidelines for Coronary Artery Bypass Graft Surgery
... Classification of Recommendations and Levels of Evidence A recommendation with Level of Evidence B or C does not imply that the recommendation is weak. Many important clinical questions addressed in the guidelines do not lend themselves to clinical trials. Although randomized trials are unavailable ...
... Classification of Recommendations and Levels of Evidence A recommendation with Level of Evidence B or C does not imply that the recommendation is weak. Many important clinical questions addressed in the guidelines do not lend themselves to clinical trials. Although randomized trials are unavailable ...
Effects of Low and High Concentrations of Potassium on the
... 5 to 20 megohms. Most records were obtained from the septal end of the moderator band, and we attempted to record from the same fibers throughout each experiment. Each recording system consisted of a Medistor cathode follower and preamplifier (model A-35) and an Electronics for Medicine amplifier (m ...
... 5 to 20 megohms. Most records were obtained from the septal end of the moderator band, and we attempted to record from the same fibers throughout each experiment. Each recording system consisted of a Medistor cathode follower and preamplifier (model A-35) and an Electronics for Medicine amplifier (m ...
Action Potential Dynamics Explain Arrhythmic Vulnerability in
... This 59-year-old man had ischemic cardiomyopathy and left ventricular ejection fraction (LVEF) of 20%. (A) Pacing at 109 beats/min; (B) action potential duration (APD) shows minimal oscillations over time. However, when 64 consecutive beats were superimposed, (C) action potential (AP) amplitude show ...
... This 59-year-old man had ischemic cardiomyopathy and left ventricular ejection fraction (LVEF) of 20%. (A) Pacing at 109 beats/min; (B) action potential duration (APD) shows minimal oscillations over time. However, when 64 consecutive beats were superimposed, (C) action potential (AP) amplitude show ...
The Relationship Between Pericardial Fat and Atrial Fibrillation
... fat.28 Moreover, when using MRI with ECG gating, arrhythmias such as AF can cause imaging artifacts. There is controversy regarding where and at what period during the cardiac cycle to optimally measure fat thickness. Iacobelis et al. suggested that fat thickness should be measured perpendicularly o ...
... fat.28 Moreover, when using MRI with ECG gating, arrhythmias such as AF can cause imaging artifacts. There is controversy regarding where and at what period during the cardiac cycle to optimally measure fat thickness. Iacobelis et al. suggested that fat thickness should be measured perpendicularly o ...
THE INFLUENCE OF THE VAGUS NERVES ON THE FARADIZED
... rapidly and irregularly recurring ventricular complexes, irregular waves of various sizes occur usually at a rate averaging 500 to 600 per minute. The waves may be four to five millimeters in height, but the larger waves are often interrupted by much smaller, finer, and more rapid movements of the s ...
... rapidly and irregularly recurring ventricular complexes, irregular waves of various sizes occur usually at a rate averaging 500 to 600 per minute. The waves may be four to five millimeters in height, but the larger waves are often interrupted by much smaller, finer, and more rapid movements of the s ...
Acute oedema in the evaluation of microvascular reperfusion and
... All subjects were enrolled through the Department of Cardiology, Humboldt-University, Charité; Campus Buch, Franz Volhard Klinik, Berlin Germany. Patients with AMI were considered for enrolment if they had undergone successful emergency percutaneous coronary intervention (PCI) within the preceding 2 ...
... All subjects were enrolled through the Department of Cardiology, Humboldt-University, Charité; Campus Buch, Franz Volhard Klinik, Berlin Germany. Patients with AMI were considered for enrolment if they had undergone successful emergency percutaneous coronary intervention (PCI) within the preceding 2 ...
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.