A-A Drug Treatment for Heart Rhythm Disorders Booklet.indd
... Arrhythmias are disorders of your heart’s electrical system whereby there is a change in the regular beat of your heart. Sometimes if the conduction pathway is damaged or becomes blocked, or if an extra pathway exists, the heart’s rhythm changes. The heart may beat too quickly (tachycardia), too slo ...
... Arrhythmias are disorders of your heart’s electrical system whereby there is a change in the regular beat of your heart. Sometimes if the conduction pathway is damaged or becomes blocked, or if an extra pathway exists, the heart’s rhythm changes. The heart may beat too quickly (tachycardia), too slo ...
Ventricles - science-b
... Intrinsic Conduction System of the Heart: Setting the Basic Rhythm Cardiac muscle is able to initiate its own contraction in a regular way, but its rate is influenced by both intrinsic and extrinsic factors The intrinsic conduction (nodal) system increases the rate of heart contraction and ensu ...
... Intrinsic Conduction System of the Heart: Setting the Basic Rhythm Cardiac muscle is able to initiate its own contraction in a regular way, but its rate is influenced by both intrinsic and extrinsic factors The intrinsic conduction (nodal) system increases the rate of heart contraction and ensu ...
Coarctation of the Aorta
... Coarctation of the Aorta What is Coarctation of the aorta? When the heart is functioning normally, a large artery called the aorta carries oxygen-rich (red) blood from the left ventricle to the body. It is shaped like a candy cane, with the first section moving up toward the head (ascending aorta), ...
... Coarctation of the Aorta What is Coarctation of the aorta? When the heart is functioning normally, a large artery called the aorta carries oxygen-rich (red) blood from the left ventricle to the body. It is shaped like a candy cane, with the first section moving up toward the head (ascending aorta), ...
Comparison of Left Ventricular Contractility in Pressure and Volume
... neither global strain rate nor strain rate for each wall was found to be different. Conclusion: We conclude that longitudinal LV function is reduced in both pressure and volume overload, and both of this overload patterns are equally harmful to the ventricle. (Echocardiography 2010;27:798-802) Key w ...
... neither global strain rate nor strain rate for each wall was found to be different. Conclusion: We conclude that longitudinal LV function is reduced in both pressure and volume overload, and both of this overload patterns are equally harmful to the ventricle. (Echocardiography 2010;27:798-802) Key w ...
Risk stratification for major adverse cardiac
... localisation was analysed using a 17-segment model. Participants underwent follow-up through 2015, and the development of major adverse cardiac events including ventricular tachyarrhythmias was recorded. Results: Increased left ventricular fibrosis mass was associated with increased prevalence of ve ...
... localisation was analysed using a 17-segment model. Participants underwent follow-up through 2015, and the development of major adverse cardiac events including ventricular tachyarrhythmias was recorded. Results: Increased left ventricular fibrosis mass was associated with increased prevalence of ve ...
May 2016
... The Society makes this award to candidates who can demonstrate the ability to recognise a broad range of adult electrocardiographic patterns under examination conditions. This is designed as an intermediate level award for all healthcare professionals who wish to demonstrate skills and knowledge in ...
... The Society makes this award to candidates who can demonstrate the ability to recognise a broad range of adult electrocardiographic patterns under examination conditions. This is designed as an intermediate level award for all healthcare professionals who wish to demonstrate skills and knowledge in ...
Pathological observations and tissue quantitative assessment of
... coronary arteries, over the free wall of RV, and over the apex of LV. A previous study showed that fat predominated in the epicardial layer in the right and left free walls in ARVC [18]. However, in this study, fat tissue was seen in the midzone layer of ARVC patients rather than epicardial and endo ...
... coronary arteries, over the free wall of RV, and over the apex of LV. A previous study showed that fat predominated in the epicardial layer in the right and left free walls in ARVC [18]. However, in this study, fat tissue was seen in the midzone layer of ARVC patients rather than epicardial and endo ...
A Clinical-pathological Study 2 Years Following Cardiomyoplasty
... Cardiomyocytes were surrounded by a diffuse interstitial fibrosis with important areas of sclerosis usually hyaline. New vessels were associated, often with alteration of preexistent arterioles whose wall were thickened. The endocardium was thickened in a diffuse but irregular mode and only small fo ...
... Cardiomyocytes were surrounded by a diffuse interstitial fibrosis with important areas of sclerosis usually hyaline. New vessels were associated, often with alteration of preexistent arterioles whose wall were thickened. The endocardium was thickened in a diffuse but irregular mode and only small fo ...
cardiac pressure-volume loops cardiac terminology afterload
... ventricular stroke work, which is a product of the stroke volume and the mean aortic or pulmonary artery pressure (afterload), depending on whether one is considering the left or the right ventricle. The area within a pressure‐volume loop only provides an estimate of cardiac stroke work due to the ...
... ventricular stroke work, which is a product of the stroke volume and the mean aortic or pulmonary artery pressure (afterload), depending on whether one is considering the left or the right ventricle. The area within a pressure‐volume loop only provides an estimate of cardiac stroke work due to the ...
Denis and Hamilton 2013 - Boston University Medical Campus
... addition to elevated fasting glucose and insulin. These patients also exhibit local infiltration of adipose tissue with proinflammatory macrophages, proinflammatory T cells and a corresponding decline in these same tissues in numbers of alternatively activated macrophages and anti-inflammatory regul ...
... addition to elevated fasting glucose and insulin. These patients also exhibit local infiltration of adipose tissue with proinflammatory macrophages, proinflammatory T cells and a corresponding decline in these same tissues in numbers of alternatively activated macrophages and anti-inflammatory regul ...
Exercise Capacity in Patients with Severe Left Ventricular Dysfunction
... graded treadmill exercise test during the 24-month period from February 1977 through February 1979. Patients were excluded from the study if a major change in therapy (medical or surgical) was instituted between the two tests. The interval between the tests was 0.9 ± 1.5 weeks (mean ± SD). The study ...
... graded treadmill exercise test during the 24-month period from February 1977 through February 1979. Patients were excluded from the study if a major change in therapy (medical or surgical) was instituted between the two tests. The interval between the tests was 0.9 ± 1.5 weeks (mean ± SD). The study ...
First report of pentalogy of Cantrell in a calf: a case report
... Muraskas, 2007) like in the present report. Diagnosis of the complete syndrome requires the five criteria described by Cantrell, but incomplete variant forms exhibiting three or four of the features have been reported. The sternal defect can range from absence of the xiphoid to cleaving, shortening, ...
... Muraskas, 2007) like in the present report. Diagnosis of the complete syndrome requires the five criteria described by Cantrell, but incomplete variant forms exhibiting three or four of the features have been reported. The sternal defect can range from absence of the xiphoid to cleaving, shortening, ...
Effect of ivabradine on recurrent hospitalization for worsening heart
... pressure, heart rate, left ventricular ejection fraction (LVEF), and creatinine clearance]. The cumulative incidence rate of hospitalizations for HF, plotted by treatment group, was calculated using the Nelson – Aalen’s estimator, which corrects for the competing risk of death.15 In view of the rece ...
... pressure, heart rate, left ventricular ejection fraction (LVEF), and creatinine clearance]. The cumulative incidence rate of hospitalizations for HF, plotted by treatment group, was calculated using the Nelson – Aalen’s estimator, which corrects for the competing risk of death.15 In view of the rece ...
Relevance of blood pressure variation in the circadian onset of
... the Holter ST-segment depression, has been observed in the first and second hours after awakening. This finding provides an explanation as to why many patients report that they experience angina more frequently, or even exclusively, in the morning on arising. Similarly, observations of 1167 patients ...
... the Holter ST-segment depression, has been observed in the first and second hours after awakening. This finding provides an explanation as to why many patients report that they experience angina more frequently, or even exclusively, in the morning on arising. Similarly, observations of 1167 patients ...
Arrythmia_2014 - University of Washington
... Mental status changes, hypotension, angina, shock, heart failure Acute or chronic Are they sleeping? Do they have sleep apnea? Not everyone with bradycardia, even complete heart ...
... Mental status changes, hypotension, angina, shock, heart failure Acute or chronic Are they sleeping? Do they have sleep apnea? Not everyone with bradycardia, even complete heart ...
ONE-HALF CYCLE - Circulation Research
... In order that the amplifier may be used both to induce fibrillation and to terminate it, a manual selector switch (not shown on diagram) in the input circuit of the signal frequency amplifier allows the operator to pick one of three types of shock. The first of these is usually a low current 60 cycl ...
... In order that the amplifier may be used both to induce fibrillation and to terminate it, a manual selector switch (not shown on diagram) in the input circuit of the signal frequency amplifier allows the operator to pick one of three types of shock. The first of these is usually a low current 60 cycl ...
Evaluation of Native Left Ventricular Function During Mechanical
... Various tools have been used to treat patients with profound cardiogenic shock. Fig. 1 shows the current pathway of treatment. Such patients have been treated recently with heart transplantation, sometimes following a period of mechanical circulatory support. A small number of patients recover enoug ...
... Various tools have been used to treat patients with profound cardiogenic shock. Fig. 1 shows the current pathway of treatment. Such patients have been treated recently with heart transplantation, sometimes following a period of mechanical circulatory support. A small number of patients recover enoug ...
Update on Management of Non-Valvular Atrial Fibrillation
... The mechanisms underlying AF are multifactorial and challenging to pinpoint on an individual case basis.5 Age is the strongest determinant of AF with a life-time risk estimated at 25% for a 40-year old person.5,6 A familial component of AF is also well established, especially in the case of young-on ...
... The mechanisms underlying AF are multifactorial and challenging to pinpoint on an individual case basis.5 Age is the strongest determinant of AF with a life-time risk estimated at 25% for a 40-year old person.5,6 A familial component of AF is also well established, especially in the case of young-on ...
Lack of Social Support in the Etiology and the Prognosis of Coronary
... Study participants of etiologic studies were adult men and women who were free of subjective symptoms of angina pectoris, had never had a conspicuous test for CHD, and were not predominantly suffering from any other disease. Participants of prognostic studies were adult men and women with preexistin ...
... Study participants of etiologic studies were adult men and women who were free of subjective symptoms of angina pectoris, had never had a conspicuous test for CHD, and were not predominantly suffering from any other disease. Participants of prognostic studies were adult men and women with preexistin ...
arrhythmogenesis in mitral valve prolapse
... and informed consent was also taken from all the patients. 37 patients with mitral valve prolapse, from 15 to 38 years of age were included in the study. Patients with acute or old myocardial infarction, diabetes mellitus, ischemic heart disease, systemic hypertension or bundle branch block were exc ...
... and informed consent was also taken from all the patients. 37 patients with mitral valve prolapse, from 15 to 38 years of age were included in the study. Patients with acute or old myocardial infarction, diabetes mellitus, ischemic heart disease, systemic hypertension or bundle branch block were exc ...
Efficacy, safety and tolerability of metoprolol CR/XL in patients with
... the diabetic group (95% CI 53% to 15%), and by 35% in the non-diabetic group (95% CI 48% to 19%). Pooling of mortality data from the Cardiac Insufficiency Bisoprolol Study II (CIBIS II), MERIT-HF, and the Carvedilol Prospective Randomized Cumulative Survival Study (COPERNICUS) showed similar surviva ...
... the diabetic group (95% CI 53% to 15%), and by 35% in the non-diabetic group (95% CI 48% to 19%). Pooling of mortality data from the Cardiac Insufficiency Bisoprolol Study II (CIBIS II), MERIT-HF, and the Carvedilol Prospective Randomized Cumulative Survival Study (COPERNICUS) showed similar surviva ...
Metformin enhances left ventricular function in patients with
... All patients received the same dietary and exercise counseling as well as an antagonist of angiotensin two receptors and; statins, fibrates or both, if needed. The protocol was approved by the Ethics and Research Institutional Committees, and the study was conducted according to standards derived fr ...
... All patients received the same dietary and exercise counseling as well as an antagonist of angiotensin two receptors and; statins, fibrates or both, if needed. The protocol was approved by the Ethics and Research Institutional Committees, and the study was conducted according to standards derived fr ...
Regulation of Human Heart Rate
... reactions in other parts of the body. The nervous system is divided broadly into two categories: the peripheral nervous system and the central nervous system. It includes your brain, all your sensory organs (eyes, ears, etc.) and your nerve network. The Digestive System breaks down of chemicals in ...
... reactions in other parts of the body. The nervous system is divided broadly into two categories: the peripheral nervous system and the central nervous system. It includes your brain, all your sensory organs (eyes, ears, etc.) and your nerve network. The Digestive System breaks down of chemicals in ...
Modeling Pathologies of Diastolic and Systolic Heart Failure
... all human mortality.4 Despite tremendous scientific efforts during the past 20 years, heart failure remains one of the most common, costly, disabling, and deadly medical conditions affecting more than 25 million people worldwide.40 Heart failure usually worsens over time; it is the major cause of hos ...
... all human mortality.4 Despite tremendous scientific efforts during the past 20 years, heart failure remains one of the most common, costly, disabling, and deadly medical conditions affecting more than 25 million people worldwide.40 Heart failure usually worsens over time; it is the major cause of hos ...
Risk Factors for Post-Coronary Artery Bypass Grafting (CABG)
... and in-hospital and long term mortality.1,4,19 Although the exact mechanisms leading to the development of post- CABG AF are not entirely clear, however several studies indicate that increased level of oxidative stress secondary to ischemia,20, ...
... and in-hospital and long term mortality.1,4,19 Although the exact mechanisms leading to the development of post- CABG AF are not entirely clear, however several studies indicate that increased level of oxidative stress secondary to ischemia,20, ...
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.