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The Contemporary Management of Atrial
The Contemporary Management of Atrial

... The most frequent histopathological changes in A FIB are atrial fibrosis and loss of atrial muscle mass. There are many possible causes for these findings, including: coronary artery disease causing atrial ischaemia; age-related atrial fibrotic changes; alcohol and caffeine; changes in autonomic ton ...
Left Ventricular Assist Devices *LVAD*
Left Ventricular Assist Devices *LVAD*

... Imminent risk of death Candidate for cardiac transplantation For both in-patient and out-patient use ...
Hypoplastic left heart syndrome: From in
Hypoplastic left heart syndrome: From in

... patterns has resulted in a much clearer understanding of this complex and unique physiology. In fetal HLHS, placental and systemic venous return drains to the right atrium. Blood flows across the tricuspid valve into the right ventricle and is ejected into the pulmonary artery. The majority of blood ...
Rulebased Assignment of Myocardial Sheet Orientation
Rulebased Assignment of Myocardial Sheet Orientation

... tricles. There are typically four myocytes across the thickness of a layer. One axis of the sheets is built by the myocardial fibre orientation. The other axis is measured relative to the local outer-wall normal in planes built by the principal axis of the heart and a vector radial to it. Near the e ...
Copeptin in patients with heart failure and preserved ejection
Copeptin in patients with heart failure and preserved ejection

... copeptin in HFPEF is elevated, associated with diastolic dysfunction and N-terminal pro-brain natriuretic peptide (NT-proBNP) and predictive of HF hospitalisation and mortality. Methods and analysis: In a prospective observational substudy of the The Karolinska Rennes (KaRen) 86 patients with sympto ...
Diastolic Filling Characteristics in the Stage 12 to 27 Chick
Diastolic Filling Characteristics in the Stage 12 to 27 Chick

... Dorsal aortic stroke volume (A) increases with stages. Passive filling analysis independent of rate. volume (0)is dominant until stage 18, then active filling volume (0) Changes in diastolic properties may be an important epigenetic progressively increases. Insert shows similar plot of volumes at st ...
T Beta-blockers for heart failure: Why you should use them more
T Beta-blockers for heart failure: Why you should use them more

... Because of the bradyarrhythmic and hypotensive effects of beta-blockers, the major heart failure trials excluded patients with a heart rate of <50 to 68 beats per minute (BPM) or systolic blood pressure <80 to 100 mm Hg (the ranges cited reflect the variation in cut points from one study to another) ...
Heart Metastasis of Extraskeletal Myxoid Chondrosarcoma
Heart Metastasis of Extraskeletal Myxoid Chondrosarcoma

... There was no evidence of leg venous thrombosis on a Duplex scan. Abdominal ultrasound revealed only moderately enlarged liver with dilated intrahepatic veins. Chest computerized tomography (CT) scan confirmed the big tumor in the right heart (8×6 cm) and no involvement of the pericardial sac or big ...
Beginning 12 Lead ECG Workshop - California Association for
Beginning 12 Lead ECG Workshop - California Association for

... • QT interval length depends on rate, physiology and medications: normal is generally .36-.44 • QTc = QT Corrected – Males > .45 seconds is abnormal – Females > .47 seconds is abnormal ...
Contemporary Management of Acute Right Ventricular Failure: A
Contemporary Management of Acute Right Ventricular Failure: A

... systolic functional adaptation (Anrep’s law of the heart) within minutes of a rise in pulmonary artery pressure; chronically it implements a heterometric or dimensional adaptation (Starling’s law of the heart) to preserve flow output. Insufficient systolic functional adaptation will limit cardiac o ...
Gene Regulatory Networks in the Evolution and
Gene Regulatory Networks in the Evolution and

... Mutation of the GATA gene, pannier, in Drosophila results in an absence of cardioblasts and a decrease in the number of pericardial cells (20). tinman expression is lost in pannier mutants, and ectopic expression of pannier results in the production of supernumerary cardioblasts. Multiple T-box gene ...
Case
Case

... Ventricular bigeminy refers to alternating normal sinus and premature ventricular complexes. Amiodarone is a potent antiarrhythmic agent to treat ventricular arrhythmias. Amiodarone administration in hypokalemia may increase the risk of adverse effect of amiodarone. Case report A 51-year old woman w ...
CARDIOVASCULAR PHYSIOLOGY • Electrical Conduction of the
CARDIOVASCULAR PHYSIOLOGY • Electrical Conduction of the

... SINUS BRADYCARDIA: A heart rate slower than 60 SA-Nodal depolarizations per minute. "Sinus" indicates that the cardiac impulse is originating from the SA-Node as normal. SINUS TACHYCARDIA: Heart rate faster than 100 bpm, originating as normal from the SA-Node. o Tachycardia generally means you'll se ...
Association Between Elevated Blood Glucose and Outcome in Acute
Association Between Elevated Blood Glucose and Outcome in Acute

... in serious illness are associated with an altered short-term outcome in AHF. As an example, altered glycemic control is common during critical illness, occurs in patients with or without a history of diabetes mellitus (DM), and may be associated with adverse outcome in this setting (3). In cardiovas ...
3/09 LV Systolic Function
3/09 LV Systolic Function

Use of the Rating of Perceived Exertion to Control
Use of the Rating of Perceived Exertion to Control

... of testing. On the first visit, physical characteristics were recorded and a submaximal graded exercise test was administered. The purpose of this was to acquire a physiological data base for the children that would enable the prediction of maximal oxygen uptake and maximal power output for each sub ...
What is a heart murmur? - Willows Vets
What is a heart murmur? - Willows Vets

... In puppies less than 6 months of age, in addition to murmurs produced by congenital defects, puppies can have innocent or benign murmurs - often called a puppy murmur. These occur due the fast flow of blood in such a small heart. As the puppy and its heart grow and mature, then the murmur gradually ...
Persistent Truncus Arteriosus with Survival to the Age of38
Persistent Truncus Arteriosus with Survival to the Age of38

Notes on Residuals
Notes on Residuals

File
File

... :are uncommon but may include • Worsening of the arrhythmias. • Blood clots that can cause a stroke or other organ damage, bruising, burning or pain where the paddles were used. • Allergic reactions from medicines used in pharmacologic cardioversion . ...
- International Journal of Applied Research
- International Journal of Applied Research

... and Non-Smokers were recorded as 75.57 ±2.17 and 83.45 ±9.69 respectively. It indicates that Non-Smokers are significantly better than Smokers. Discussion The cardiovascular system includes the heart and all of the blood vessels that carry blood to and from the organs. Blood vessels include arteries ...
children with congenital heart disease Perioperative manipulation of
children with congenital heart disease Perioperative manipulation of

... oxygen delivery can complicate the early postoperative recovery early after surgery for congenital heart disease (CHD). All patients undergoing surgery on cardiopulmonary bypass (CPB) are at risk for a low cardiac output state, but the risk is greatest for younger patients undergoing more complex su ...
Structure and Function of the Developing Zebrafish Heart
Structure and Function of the Developing Zebrafish Heart

... zebrafish vital for developmental biologists. However, there is no comprehensive reference of morphology and function for this animal. Since study of gene expression must be integrated with structure and function, we undertook a longitudinal study to define the cardiac morphology and physiology of t ...
Primary Cardiac Neoplasms
Primary Cardiac Neoplasms

... • The prognosis for apical CVD depended on associated intracardiac malformations and was generally good after repair. • The outcome for nonapical CVD was also excellent, with even a total regression in some cases • CVA had a poor prognosis with frequent fatal cardiovascular complications in the neon ...
Thirty-Five Years of Mechanical Circulatory Support at the Texas
Thirty-Five Years of Mechanical Circulatory Support at the Texas

... eplacing the failing human heart has had a turbulent history. The 1st human-to-human heart transplantation, performed by Christiaan Barnard in 1967,1 marked an exciting advance in cardiac surgery. It revealed to the medical community at large and to the public that failing hearts could be replaced, ...
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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.
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