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Congenital third-degree AV block in the infant with a ventricular rate
Congenital third-degree AV block in the infant with a ventricular rate

... Congenital third-degree AV block in the infant with a ventricular rate less than 55 bpm or with congenital heart disease and a ventricular rate less than 70 bpm. (Level of Evidence: C) Congenital third-degree AV block beyond the first year of life with an average heart rate less than 50 bpm,abrupt p ...
Should Moderate or Greater Mitral Regurgitation Be Repaired in All
Should Moderate or Greater Mitral Regurgitation Be Repaired in All

... former pathology is found in dilated cardiomyopathy; the latter is the hallmark of chronic ischemic MR. Both of these forms of cardiomyopathy account for most cases of heart failure in the developed world and are the leading diagnoses of patients on our cardiac transplant waiting lists.11 In functio ...
Long-term ventricular assist devices in current clinical
Long-term ventricular assist devices in current clinical

... of mechanical assist devices as a DT on the outcome and quality of life in patients with CHF was the Randomized Evaluation of Mechanical Assistance for the Treatment of Congestive Heart Failure (REMATCH) trial 3. In this landmark trial, a total of 129 patients with end-stage heart failure – New York ...
A Case of Wide Complex Tachycardia in a Patient with a
A Case of Wide Complex Tachycardia in a Patient with a

basic echocardiography series
basic echocardiography series

... 8 The parasternal four chamber view demonstrates A The aortic valve B The pulmonary valve C The inter ventricular septum D All of the above 9 The standard three orthogonal image planes are determined by A Skeletal or external body landmarks B Transducer position C The axis of the heart itself D All ...
Physical training and relaxation therapy in cardiac rehabilitation
Physical training and relaxation therapy in cardiac rehabilitation

oppgave-tollofsrud - UiO
oppgave-tollofsrud - UiO

... 1. The central command hypothesis supposes that the brain controls the autonomic and respiratory neurons of the brainstem. The fact that the heart rate increase from the first moment of exercise supports this theory. This could be a feed forward mechanism. During dynamic exercise the heart rate and ...
The_Circulatory_System - Miami Beach Senior High School
The_Circulatory_System - Miami Beach Senior High School

... T Neutrophils destroy bacteria, viruses, and toxins in the bloodstream. __ T Platelets are important to the clotting process. pulls water into __ F Albumin is a small plasma protein that pushes water out of the bloodstream. __ T Hemostasis is the control of bleeding. ...
School of Health Sciences - University of Nottingham
School of Health Sciences - University of Nottingham

... 25% loss of output from the heart. However, the frequency of the non-conducted P waves will dictate symptoms. A loss of ventricular contraction every 10 beats is unlikely to cause any symptoms. A loss of output every 3 beats is more likely to cause symptoms as it represents a 33% loss of cardiac out ...
Monomorphic Ventricular Tachycardia Originating From Right
Monomorphic Ventricular Tachycardia Originating From Right

... to V3 (spontaneously or after drug challenge) in the absence of structural heart disease or other causes. Patients are at increased risk of syncope and sudden cardiac death (SCD) due to polymorphic ventricular tachycardia (VT) or ventricular fibrillation (VF). Prolongation of PR interval, P wave abn ...
Relationship of Heart Sounds to Acceleration of Blood Flow
Relationship of Heart Sounds to Acceleration of Blood Flow

... the atrial "c-wave" was not always as classically described, but was frequently biphasic and, on occasion, even more complex. There occurred at this time a distinct positive, or biphasic, wave in the central aorta. This wave was invariably present, even in one animal in the face of atrial fibrillati ...
Cardiac Arrest
Cardiac Arrest

... Turn face slightly down, mouth open Check Breathing: if breathing – leave in left lat position, apply O2, observe ABC Position: on firm flat surface (remember backboard) Exposure: expose abdomen & chest Conscious state: Shake, call name, tactile stimulus Airway: visual inspection, leave well-fitting ...
Circulatory System
Circulatory System

... carry blood away from heart. Arterial walls are able to expand and contract. Arteries have three layers of thick walls. Smooth muscle fibers contract, another layer of connective tissue is quite elastic, allowing the arteries to carry blood under high pressure. http://www.estrellamountain.edu/facult ...
Reducing Readmissions for Congestive Heart Failure
Reducing Readmissions for Congestive Heart Failure

... in patients with heart failure. These agents have been the mainstay of therapy for left ventricular dysfunction since their substantial impact on symptoms was recognized. The trend in treating mild to moderate heart failure is to maximize the use of ACE inhibitors and minimize or possibly stop the u ...
Application of the Transtheoretical Model to Exercise Behavior and
Application of the Transtheoretical Model to Exercise Behavior and

... to non-participants, patients participated in an outpatient CR was more in maintenance stage and less in pre-contemplation in our study. This result showed that attending a CR program may influence patient exercise behavior after discharge. Pinto et al.9 followed-up cardiac patients for 12 months. T ...
Cardiac Arrest VF/Pulseless VT Learning Station Checklist
Cardiac Arrest VF/Pulseless VT Learning Station Checklist

... (eg, initial dose of   120-200 J); if unknown, use maximum available.   Second and subsequent doses should be equivalent, and higher doses may be considered. •  Monophasic: 360 J ...
Basic Pharmacology of Bradykinin Receptor Agonists
Basic Pharmacology of Bradykinin Receptor Agonists

... Kinins are potent vasorelaxant polypeptides located in the vascular smooth muscle as well as in the heart. A number of observations obtained from clinical and experimental models of hypertension, cardiac failure, ischaemia, myocardial infarction and left ventricular hypertrophy, have suggested that ...
The QT interval: How long is too long?
The QT interval: How long is too long?

... Each lead of an ECG will most likely give you a slightly different QT measurement. When measuring QT intervals, it’s important to find a lead on the ECG that has a T wave with a clearly defined end. Always use that lead when measuring your QT interval, and remember to be consistent with your measure ...
Persistent ductus arteriosus
Persistent ductus arteriosus

dysrhythmias
dysrhythmias

... – Do not place the anterior electrode over female breast tissue; rather, displace breast tissue and place under the breast – Do not take the pulse or BP on the left side because the results will not be accurate due to the muscle twitching and electrical current – Assure that electrodes are in good c ...
syllabus apk 6128 ekg interpretation fall semester, 2012
syllabus apk 6128 ekg interpretation fall semester, 2012

... requesting special classroom accommodations must first register with the Dean of Students Office. The Dean of Students Office will provide documentation to the student who must then provide this documentation to the instructor when requesting accommodation.” DISABILITY RESOURCE CENTER NOTE: “For opt ...
Long-term effects of non-excitatory cardiac contractility modulation
Long-term effects of non-excitatory cardiac contractility modulation

... during the absolute refractory period improved LV function in dogs with chronic heart failure HF . In the present study we examined the long-term effects of CCM signal delivery on the progression of LV dysfunction and remodeling in dogs with chronic HF. Ó»¬¸±¼-: Chronic HF was produced in 12 dogs by ...
Effect of exercise training in essential arterial hypertension
Effect of exercise training in essential arterial hypertension

... in peripheral vascular resistance15. A decrease in sympathetic efferent activity in the vessels surely plays a fundamental role regarding the heart, as does an increase in efferent vagal activity. It has long been recognized that an increase in sympathetic nervous system (SNS) activity is of major i ...
Modern Left Ventricular Assist Devices (LVAD) : An Intro
Modern Left Ventricular Assist Devices (LVAD) : An Intro

... All three of these LVADs follow a few of the same design concepts. ...
The Correlation between Left and Right Ventricular Ejection
The Correlation between Left and Right Ventricular Ejection

... ischemic heart disease. RVEF and LVEF were measured by Cardiovascular Magnetic Resonance (CMR) imaging. Materials and Methods: This observational study was done in Ghaem general hospital in 2014. LVEF and RVEF were measured in a series of 33 patients with ischemic heart disease, undergoing CMR for t ...
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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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