Normal and Abnormal Coronary Artery Anatomy: Is it
... to the margin just before the RCA bends round the right ventricle it gives off the acute marginal branch (Fig 1 & 2) which supplies the anterior wall of the right ventricle. The RCA bends sharply at the margin to travel along the posterior surface of the heart. In 80-85% of patients the RCA gives of ...
... to the margin just before the RCA bends round the right ventricle it gives off the acute marginal branch (Fig 1 & 2) which supplies the anterior wall of the right ventricle. The RCA bends sharply at the margin to travel along the posterior surface of the heart. In 80-85% of patients the RCA gives of ...
Cardiac involvement in malaria: An overlooked important complication
... falciparum malaria. Plasma levels of these markers were correlated with lactate and glucose blood levels, indicators for hypovolemia, and with clinical outcome. Children suffering from severe malaria and children who died (n = 22) exhibited high to higher levels of cardiac markers, respectively. Myo ...
... falciparum malaria. Plasma levels of these markers were correlated with lactate and glucose blood levels, indicators for hypovolemia, and with clinical outcome. Children suffering from severe malaria and children who died (n = 22) exhibited high to higher levels of cardiac markers, respectively. Myo ...
Coronary Revascularization before Vascular Surgery
... not been clearly defined. Because the prevalence of coronary artery disease among these patients approaches 50 percent,1 the incidence of perioperative cardiac complications is high, leading to a rigorous process of risk stratification.2-5 In the absence of any outcome-based studies, panels of exper ...
... not been clearly defined. Because the prevalence of coronary artery disease among these patients approaches 50 percent,1 the incidence of perioperative cardiac complications is high, leading to a rigorous process of risk stratification.2-5 In the absence of any outcome-based studies, panels of exper ...
- Heart Rhythm Alliance
... Autonomic sympathetic nerves pass from the brain to blood vessels that maintain blood pressure. In reflex syncope a poorly understood reflex suddenly withdraws the effect of these nerves, and blood pressure falls abruptly. Another part of this reflex involves the vagus nerve from the brain. When the ...
... Autonomic sympathetic nerves pass from the brain to blood vessels that maintain blood pressure. In reflex syncope a poorly understood reflex suddenly withdraws the effect of these nerves, and blood pressure falls abruptly. Another part of this reflex involves the vagus nerve from the brain. When the ...
Chap 14 Study Guide
... will always flow from blood vessels in areas of higher pressure toward those in areas of lower pressure. Blood flow is also related to the volume of blood pumped from the heart each minute (cardiac output) and the degree of vascular constriction, or peripheral resistance, that circulating blood enco ...
... will always flow from blood vessels in areas of higher pressure toward those in areas of lower pressure. Blood flow is also related to the volume of blood pumped from the heart each minute (cardiac output) and the degree of vascular constriction, or peripheral resistance, that circulating blood enco ...
Resume Computer Science
... 140 adjustable parameters. 7) HRV analyses of ECG and EEG signals. 8) Automatic concatenation of results while running in batch mode. 9) Computation of time- and frequency-domain, and nonlinear variables. 10) Inclusion of several original methods of analyses, 11) Multithreading option. Programmed th ...
... 140 adjustable parameters. 7) HRV analyses of ECG and EEG signals. 8) Automatic concatenation of results while running in batch mode. 9) Computation of time- and frequency-domain, and nonlinear variables. 10) Inclusion of several original methods of analyses, 11) Multithreading option. Programmed th ...
Obstructive Sleep Apnea - UM Anesthesiology
... • It is possible to predict need for MET/RRT fairly accurately using advanced monitoring • MET/RRT intervention does not change mortality risk • Risk periods for desaturation and unplanned intubation are not congruent • Postoperative monitoring is associated with increased technological intensificat ...
... • It is possible to predict need for MET/RRT fairly accurately using advanced monitoring • MET/RRT intervention does not change mortality risk • Risk periods for desaturation and unplanned intubation are not congruent • Postoperative monitoring is associated with increased technological intensificat ...
electrocardiographic diagnosis of left ventricular hypertrophy
... ECG of the patients were recorded and Romhilt-Estes point score calculated. This was followed by echocardiography and left ventricular mass and left ventricular mass index was calculated. Results: It was found that Romhilt-Estes point score system of ECG had a sensitivity of 35% and specificity 90%. ...
... ECG of the patients were recorded and Romhilt-Estes point score calculated. This was followed by echocardiography and left ventricular mass and left ventricular mass index was calculated. Results: It was found that Romhilt-Estes point score system of ECG had a sensitivity of 35% and specificity 90%. ...
Complex intracardiac nervous system
... interventions, which at first step localize heart ganglia and then produce specific radiofrequency ablation has already been described (36). The role of intracardiac neurons in etiopathogenesis of arrhythmias supports observation of significant reduction of postoperative arrhythmias after coronary b ...
... interventions, which at first step localize heart ganglia and then produce specific radiofrequency ablation has already been described (36). The role of intracardiac neurons in etiopathogenesis of arrhythmias supports observation of significant reduction of postoperative arrhythmias after coronary b ...
Y-Adaptor Connection for LV Lead in Upgrading to Biventricular
... clinical deterioration in individuals with normal ventricular function.2-4 However, there are reports showing ventricularly based pacemakers per se might induce ventricular dysfunction and secondarily congestive heart failure. 5,6 Recent clinical studies have shown that either atrialbased or less RV ...
... clinical deterioration in individuals with normal ventricular function.2-4 However, there are reports showing ventricularly based pacemakers per se might induce ventricular dysfunction and secondarily congestive heart failure. 5,6 Recent clinical studies have shown that either atrialbased or less RV ...
Clinical Guidance by Consensus - The Society for Cardiological
... scapacity for dynamic exercise; other techniques, such as cardio-pulmonary exercise testing (CPX), exist for this purpose. To ensure the maximum effectiveness from the ETT, it should be performed to national standards derived from current best practice. Although ETT is considered a safe procedure, c ...
... scapacity for dynamic exercise; other techniques, such as cardio-pulmonary exercise testing (CPX), exist for this purpose. To ensure the maximum effectiveness from the ETT, it should be performed to national standards derived from current best practice. Although ETT is considered a safe procedure, c ...
Impact of Diet-Induced Weight Loss on the Cardiac Autonomic
... with a concomitant increased risk of sudden death (1). In the Framingham study, the risk of sudden cardiac death with increasing weight was encountered in both genders (2), and the annual sudden cardiac mortality rate in obese men and women was estimated at ⬃40 times higher than the rate of unexplai ...
... with a concomitant increased risk of sudden death (1). In the Framingham study, the risk of sudden cardiac death with increasing weight was encountered in both genders (2), and the annual sudden cardiac mortality rate in obese men and women was estimated at ⬃40 times higher than the rate of unexplai ...
Left Ventricular Function Described in Physical Terms
... A linear ramp voltage was formed while the ventricular pressure was above a predetermined level (about 15 mm. Hg), so that the peak voltage attained by the ramp indicated the duration of systole in seconds. To secure a record of heart rate, the abrupt rise in ventricular pressure at the beginning of ...
... A linear ramp voltage was formed while the ventricular pressure was above a predetermined level (about 15 mm. Hg), so that the peak voltage attained by the ramp indicated the duration of systole in seconds. To secure a record of heart rate, the abrupt rise in ventricular pressure at the beginning of ...
Aortic Regurgitation, acute
... CHIEF COMPLAINT: Chest pain of three days duration. PRESENT ILLNESS: The patient struck his chest on the steering wheel in a serious automobile accident and was immediately hospitalized. An extensive chest wall contusion was initially observed but he was otherwise stable for 48 hours. In the last 24 ...
... CHIEF COMPLAINT: Chest pain of three days duration. PRESENT ILLNESS: The patient struck his chest on the steering wheel in a serious automobile accident and was immediately hospitalized. An extensive chest wall contusion was initially observed but he was otherwise stable for 48 hours. In the last 24 ...
High Intensity Training (HIT)
... moderate-intensity continuous exercise (MICE). HIIT gives rise to many short and long-term central and peripheral adaptations in these populations. In stable and selected patients, it induces substantial clinical improvements, superior to those achieved by MICE, including beneficial effects on sever ...
... moderate-intensity continuous exercise (MICE). HIIT gives rise to many short and long-term central and peripheral adaptations in these populations. In stable and selected patients, it induces substantial clinical improvements, superior to those achieved by MICE, including beneficial effects on sever ...
Implantable Cardioverter Defibrillator
... that most patients who meet criteria for an ICD at the time of initial NICM diagnosis will no longer meet the criteria several months after initiation of treatment. The evidence is sufficient to determine qualitatively that the technology results in a large improvement in the net health outcome. For ...
... that most patients who meet criteria for an ICD at the time of initial NICM diagnosis will no longer meet the criteria several months after initiation of treatment. The evidence is sufficient to determine qualitatively that the technology results in a large improvement in the net health outcome. For ...
Original article CARDIAC STRUCTURES MEASUREMENTS BY
... (Slater & Herrtage, 1995) are reported. Studies in warmblood horses are relatively scarce and no information is available for some cardiac structures dimensions, including cardiac fractions. During the interpretation of echographic parameters, a special attention is paid on the ratio between left at ...
... (Slater & Herrtage, 1995) are reported. Studies in warmblood horses are relatively scarce and no information is available for some cardiac structures dimensions, including cardiac fractions. During the interpretation of echographic parameters, a special attention is paid on the ratio between left at ...
Control of ventricular excitability by neurons of the dorsal motor
... Despite this evidence, there has been no attempt to study the central nervous mechanisms underlying parasympathetic antiarrhythmic influences. In this study, we aimed to identify a population of vagal preganglionic neurons that provide functional parasympathetic innervation of the ventricles and cont ...
... Despite this evidence, there has been no attempt to study the central nervous mechanisms underlying parasympathetic antiarrhythmic influences. In this study, we aimed to identify a population of vagal preganglionic neurons that provide functional parasympathetic innervation of the ventricles and cont ...
Print - Circulation
... All hemodynamic measurements were made under steadystate conditions with mechanical ventilation for 15 to 30 sec suspended to eliminate respiratory variation. Hemodynamic data were recorded on an analog FM tape recorder (A. R. Vetter Co.) and on an eight-channel strip-chart recorder (Gould Model 280 ...
... All hemodynamic measurements were made under steadystate conditions with mechanical ventilation for 15 to 30 sec suspended to eliminate respiratory variation. Hemodynamic data were recorded on an analog FM tape recorder (A. R. Vetter Co.) and on an eight-channel strip-chart recorder (Gould Model 280 ...
Forensic Dissection – An Autopsy
... the right ventricle, the blood is pumped through the pulmonary valve and into the pulmonary artery going to the lungs. The left atrium receives the oxygenated blood from the lungs, and out to the body. Keep these two halves of the fetal pig heart to compare later with those of an adult pig heart. 6. ...
... the right ventricle, the blood is pumped through the pulmonary valve and into the pulmonary artery going to the lungs. The left atrium receives the oxygenated blood from the lungs, and out to the body. Keep these two halves of the fetal pig heart to compare later with those of an adult pig heart. 6. ...
- AORN Journal
... care, all surgical team members should be competent in maintaining an airway and providing ventilation and cardiac compression.10 The team member performing chest compressions should provide hard, fast compressions in the center of the patient’s chest.1 These compressions should depress the chest of ...
... care, all surgical team members should be competent in maintaining an airway and providing ventilation and cardiac compression.10 The team member performing chest compressions should provide hard, fast compressions in the center of the patient’s chest.1 These compressions should depress the chest of ...
Ejection Fraction Response to Exercise in Patients with
... artery pressure < 35 mm Hg and mean pulmonary artery pressure < 20 mm Hg. (5) No definite previous myocardial infarction. A focal wall motion abnormality at catheterization and either ECG Q waves or positive cardiac isoenzyme measurements were required for the diagnosis of a definite infarction. Six ...
... artery pressure < 35 mm Hg and mean pulmonary artery pressure < 20 mm Hg. (5) No definite previous myocardial infarction. A focal wall motion abnormality at catheterization and either ECG Q waves or positive cardiac isoenzyme measurements were required for the diagnosis of a definite infarction. Six ...
Transposition of the great arteries associated with a - Heart
... aortic valve is transferred to the same posterior position as the aortic conus, and the aorta and pulmonary artery become entwined-the situation seen in the normal heart. Failure of truncal inversion results in dextroposition of the aortic valve (anterior and rightward displacement) and its origin p ...
... aortic valve is transferred to the same posterior position as the aortic conus, and the aorta and pulmonary artery become entwined-the situation seen in the normal heart. Failure of truncal inversion results in dextroposition of the aortic valve (anterior and rightward displacement) and its origin p ...
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.