Left ventricular diastolic filling response to
... OBJECTIVE: The purpose of this study was to determine the effects of pregnancy and of maximal exercise on left ventricular diastolic filling response. STUDY DESIGN: Transmitral pulsed Doppler echocardiography was obtained in 10 healthy women during each trimester of pregnancy and at 12 weeks after d ...
... OBJECTIVE: The purpose of this study was to determine the effects of pregnancy and of maximal exercise on left ventricular diastolic filling response. STUDY DESIGN: Transmitral pulsed Doppler echocardiography was obtained in 10 healthy women during each trimester of pregnancy and at 12 weeks after d ...
Invasive Hemodynamic Monitoring
... blood through the aortic valve, into the aorta, and then through the systemic circulation. The pulmonary capillary bed lies between the right and left heart. The capillary bed is a very compliant system with a high capacity to hold blood. Changes in this capacity can be detected through pressure cha ...
... blood through the aortic valve, into the aorta, and then through the systemic circulation. The pulmonary capillary bed lies between the right and left heart. The capillary bed is a very compliant system with a high capacity to hold blood. Changes in this capacity can be detected through pressure cha ...
Chapter 12 The Circulatory System
... Elsevier items and derived items © 2008, 2004 by Mosby, Inc., an affiliate of Elsevier Inc. ...
... Elsevier items and derived items © 2008, 2004 by Mosby, Inc., an affiliate of Elsevier Inc. ...
AHA Scientific Statement
... reserve. Some studies, however, have shown acute exerciseinduced increases in LV preload in patients with HF, particularly those with coronary artery disease.10 The failure to increase LV systolic emptying and thus augment LVEF derives from a combination of impaired intrinsic contractility, reduced ...
... reserve. Some studies, however, have shown acute exerciseinduced increases in LV preload in patients with HF, particularly those with coronary artery disease.10 The failure to increase LV systolic emptying and thus augment LVEF derives from a combination of impaired intrinsic contractility, reduced ...
Corrigan`s Disease
... its precise nature o r its cause, requires the action and continued enforcement of measures calculated to exhaust strength and depress vital energy; and this error is sanct~or~ed by the standard works on the treatment of heart disease". T o prove his point he quotes from the works of Corvisart, Laen ...
... its precise nature o r its cause, requires the action and continued enforcement of measures calculated to exhaust strength and depress vital energy; and this error is sanct~or~ed by the standard works on the treatment of heart disease". T o prove his point he quotes from the works of Corvisart, Laen ...
Treatment of Ventricular Arrhythmias in Patients Undergoing LVAD
... (Stevenson & Soejima, 2007). The effective refractory period in the action potential of this borderline ischemic, viable myocardium is altered and bears the risk of generating the reentry circuits responsible for ventricular tachyarrhythmias (Doenst et al., 2007). In all patients with heart failure, ...
... (Stevenson & Soejima, 2007). The effective refractory period in the action potential of this borderline ischemic, viable myocardium is altered and bears the risk of generating the reentry circuits responsible for ventricular tachyarrhythmias (Doenst et al., 2007). In all patients with heart failure, ...
Metoduchka_III_kyrs._Modul_2
... 23.Please write Classification of myocarditis according to etiology. 24.Please write Classification of myocarditis according to cours of disease. 25.Please write Classification of myocarditis according to severity of cours. 26.List complaints of patients and sights during objective examination of mi ...
... 23.Please write Classification of myocarditis according to etiology. 24.Please write Classification of myocarditis according to cours of disease. 25.Please write Classification of myocarditis according to severity of cours. 26.List complaints of patients and sights during objective examination of mi ...
Mechanism of Cardiovascular Action of Tetrodotoxin in the Cat
... cardiovascular depression characterized by decreases in systolic and diastolic blood pressures, pulse pressure, heart rate, force of myocardial contraction, cardiac output and peripheral resistance. These effects were associated with marked inhibition of the responses to stimulation of nerves to the ...
... cardiovascular depression characterized by decreases in systolic and diastolic blood pressures, pulse pressure, heart rate, force of myocardial contraction, cardiac output and peripheral resistance. These effects were associated with marked inhibition of the responses to stimulation of nerves to the ...
Radiofrequency ablation on veno-arterial extracorporeal life support
... the right carotid artery and jugular vein. Thereafter, sinus rhythm could not be maintained despite amiodarone 35 mcg/kg/min and flecainide 2 mg/kg. The patient developed severe pulmonary oedema secondary to left ventricular dysfunction, exaccerbated by the increased afterload caused by the extracor ...
... the right carotid artery and jugular vein. Thereafter, sinus rhythm could not be maintained despite amiodarone 35 mcg/kg/min and flecainide 2 mg/kg. The patient developed severe pulmonary oedema secondary to left ventricular dysfunction, exaccerbated by the increased afterload caused by the extracor ...
Guidelines ARVD New Criteria Circ 2010
... changes may be absent or subtle and confined to a localized region of the RV, typically the inflow tract, outflow tract, or apex of the RV, the “triangle of dysplasia.”2 Progression to more ...
... changes may be absent or subtle and confined to a localized region of the RV, typically the inflow tract, outflow tract, or apex of the RV, the “triangle of dysplasia.”2 Progression to more ...
The role of the pericardium in the valveless, tubular heart of the
... A numerical model of an elastic heart tube connected to a nearly rigid racetrack was constructed to study flow through the Ciona heart. The racetrack design was used for easy comparison to previous models of tubular heart pumping (Jung and Peskin, 2001; Hickerson et al., 2005; Baird et al., 2014; Av ...
... A numerical model of an elastic heart tube connected to a nearly rigid racetrack was constructed to study flow through the Ciona heart. The racetrack design was used for easy comparison to previous models of tubular heart pumping (Jung and Peskin, 2001; Hickerson et al., 2005; Baird et al., 2014; Av ...
Segmentation of the heart and great vessels in CT images using a
... Recently, model-based methods for the automatic segmentation of the heart chambers have been proposed. An important application of these methods is the characterization of the heart function. Heart models are, however, increasingly used for interventional guidance making it necessary to also extract ...
... Recently, model-based methods for the automatic segmentation of the heart chambers have been proposed. An important application of these methods is the characterization of the heart function. Heart models are, however, increasingly used for interventional guidance making it necessary to also extract ...
Matching Questions - Sinoe Medical Association
... A) The mitral valve separates the right atrium from the right ventricle. B) The tricuspid valve divides the left atrium from the left ventricle. C) Aortic and pulmonary valves control the flow of blood into the heart. D) The AV valves are supported by chordae tendineae so that they do not blo ...
... A) The mitral valve separates the right atrium from the right ventricle. B) The tricuspid valve divides the left atrium from the left ventricle. C) Aortic and pulmonary valves control the flow of blood into the heart. D) The AV valves are supported by chordae tendineae so that they do not blo ...
48898Adult Child Infant CPR
... care, you should check the child or infant first for lifethreatening conditions. •One way to remember what to check for is “ABC” (Airway, Breathing and Circulation). •To find out if the heart is beating, an additional check for signs of life includes checking for a pulse in the child or ...
... care, you should check the child or infant first for lifethreatening conditions. •One way to remember what to check for is “ABC” (Airway, Breathing and Circulation). •To find out if the heart is beating, an additional check for signs of life includes checking for a pulse in the child or ...
Atrioventricular dissociation with accrochage - Heart
... impulses (Fletcher and Brennan, I959; Fletcher and Morton, I968). There is, however, a third mechanism less well documented in the English published reports, which links together atrial and ventricular systole in atrioventricular dissociation so that the P waves and QRS complexes synchronize with ea ...
... impulses (Fletcher and Brennan, I959; Fletcher and Morton, I968). There is, however, a third mechanism less well documented in the English published reports, which links together atrial and ventricular systole in atrioventricular dissociation so that the P waves and QRS complexes synchronize with ea ...
Ruptured Left Sinus of Valsalva Aneurysm
... aggressively as delay in intervention can lead to increased morbidity and mortality. Majority of series have shown increased incidence of the right sinus of valsalva involvement with rupture into the right ventricular outflow tract, right ventricle and right atrium in diminishing incidence respectiv ...
... aggressively as delay in intervention can lead to increased morbidity and mortality. Majority of series have shown increased incidence of the right sinus of valsalva involvement with rupture into the right ventricular outflow tract, right ventricle and right atrium in diminishing incidence respectiv ...
Noninvasive epicardial and endocardial mapping of premature
... dia (VT). All patients underwent pre-procedural computed tomography or magnetic resonance imaging of the heart and torso. Radiographic data were semi-automatically processed by the NEEES to reconstruct a realistic 3D model of the heart and torso. In the electrophysiology laboratory, body-surface ele ...
... dia (VT). All patients underwent pre-procedural computed tomography or magnetic resonance imaging of the heart and torso. Radiographic data were semi-automatically processed by the NEEES to reconstruct a realistic 3D model of the heart and torso. In the electrophysiology laboratory, body-surface ele ...
The SynCardia CardioWeste Total Artificial Heart
... supported by a portable briefcase-sized pneumatic driver. In summary, given the complete absence of long-term human experience with such devices at that time, the results seemed extraordinarily good. Yet, in many ways, the medical profession was not prepared for this technology. Most of the preclini ...
... supported by a portable briefcase-sized pneumatic driver. In summary, given the complete absence of long-term human experience with such devices at that time, the results seemed extraordinarily good. Yet, in many ways, the medical profession was not prepared for this technology. Most of the preclini ...
Assessment of coronary flow velocity with transthoracic
... was blinded to the patient’s clinical data. Wall motion in each of the 16 segments of the left ventricle was scored, ranging from 0 ⫽ hyperkinesis, 1 ⫽ normal to 4 ⫽ dyskinesis. Segments were assigned to a vascular supply on the basis of a previously described model (13). A test result was considere ...
... was blinded to the patient’s clinical data. Wall motion in each of the 16 segments of the left ventricle was scored, ranging from 0 ⫽ hyperkinesis, 1 ⫽ normal to 4 ⫽ dyskinesis. Segments were assigned to a vascular supply on the basis of a previously described model (13). A test result was considere ...
Aortic valve calcification using multislice CT
... predictive value: 100%), while a score of more than 2000 was strongly predictive of stenosis [9] . Clinical applications of calcium burden measurements may be particularly useful in patients with left ventricular dysfunction. However, the correlation between calcium score and ultrasound indices of ...
... predictive value: 100%), while a score of more than 2000 was strongly predictive of stenosis [9] . Clinical applications of calcium burden measurements may be particularly useful in patients with left ventricular dysfunction. However, the correlation between calcium score and ultrasound indices of ...
Beta blockers and their combinations in the management of
... were associated with an increase in mortality, myocardial infarction and stroke.1 Furthermore, beta blockers were not as effective in reducing central aortic blood pressure as other antihypertensive drugs. • Reduced compliance: As a class, beta blockers are associated with many adverse effects and ...
... were associated with an increase in mortality, myocardial infarction and stroke.1 Furthermore, beta blockers were not as effective in reducing central aortic blood pressure as other antihypertensive drugs. • Reduced compliance: As a class, beta blockers are associated with many adverse effects and ...
icassp10 ecg
... the hash function to be the average content of counters for the best performance, the THR will be any value fallen out of normal range. In other words, the abnormal heart beats are those that do not fit in the bell-shape normal behavior of counter values. The features that are used in our profiling sc ...
... the hash function to be the average content of counters for the best performance, the THR will be any value fallen out of normal range. In other words, the abnormal heart beats are those that do not fit in the bell-shape normal behavior of counter values. The features that are used in our profiling sc ...
Parental electrocardiographic screening identifies a high degree of
... children with AV block diagnosed in utero, at birth, or before 15 years of age without structural heart abnormalities and without maternal antibodies. Parents and matched control subjects were investigated for family history and for ECG screening. In parents, a family history of sudden death or prog ...
... children with AV block diagnosed in utero, at birth, or before 15 years of age without structural heart abnormalities and without maternal antibodies. Parents and matched control subjects were investigated for family history and for ECG screening. In parents, a family history of sudden death or prog ...
Exenatide infusion decreases atrial natriuretic peptide levels by
... levels were not directly associated with exenatide levels, but were related to the action of the decreased filling pressure during exenatide infusion. In our previous study, we demonstrated that exenatide infusion increased cardiac index as a result of chronotropy, without any changes in stroke volu ...
... levels were not directly associated with exenatide levels, but were related to the action of the decreased filling pressure during exenatide infusion. In our previous study, we demonstrated that exenatide infusion increased cardiac index as a result of chronotropy, without any changes in stroke volu ...
Myocardial infarction
Myocardial infarction (MI) or acute myocardial infarction (AMI), commonly known as a heart attack, occurs when blood flow stops to a part of the heart causing damage to the heart muscle. The most common symptom is chest pain or discomfort which may travel into the shoulder, arm, back, neck, or jaw. Often it is in the center or left side of the chest and lasts for more than a few minutes. The discomfort may occasionally feel like heartburn. Other symptoms may include shortness of breath, nausea, feeling faint, a cold sweat, or feeling tired. About 30% of people have atypical symptoms, with women more likely than men to present atypically. Among those over 75 years old, about 5% have had an MI with little or no history of symptoms. An MI may cause heart failure, an irregular heartbeat, or cardiac arrest.Most MIs occur due to coronary artery disease. Risk factors include high blood pressure, smoking, diabetes, lack of exercise, obesity, high blood cholesterol, poor diet, and excessive alcohol intake, among others. The mechanism of an MI often involves the rupture of an atherosclerotic plaque, leading to complete blockage of a coronary artery. MIs are less commonly caused by coronary artery spasms, which may be due to cocaine, significant emotional stress, and extreme cold, among others. A number of tests are useful to help with diagnosis, including electrocardiograms (ECGs), blood tests, and coronary angiography. An ECG may confirm an ST elevation MI if ST elevation is present. Commonly used blood tests include troponin and less often creatine kinase MB.Aspirin is an appropriate immediate treatment for a suspected MI. Nitroglycerin or opioids may be used to help with chest pain; however, they do not improve overall outcomes. Supplemental oxygen should be used in those with low oxygen levels or shortness of breath. In ST elevation MIs treatments which attempt to restore blood flow to the heart are typically recommended and include angioplasty, where the arteries are pushed open, or thrombolysis, where the blockage is removed using medications. People who have a non-ST elevation myocardial infarction (NSTEMI) are often managed with the blood thinner heparin, with the additional use angioplasty in those at high risk. In people with blockages of multiple coronary arteries and diabetes, bypass surgery (CABG) may be recommended rather than angioplasty. After an MI, lifestyle modifications, along with long term treatment with aspirin, beta blockers, and statins, are typically recommended.Worldwide, more than 3 million people have ST elevation MIs and 4 million have NSTEMIs each year. STEMIs occur about twice as often in men as women. About one million people have an MI each year in the United States. In the developed world the risk of death in those who have had an STEMI is about 10%. Rates of MI for a given age have decreased globally between 1990 and 2010.