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Case Study Heart Disease
Case Study Heart Disease

... 4. He does not participate in a regular exercise program. This is one of the top risk factors for heart disease (WebMD, 2013). The fact that he is working long hectic days does not give him much time to exercise. ...
Biventricular Pacemakers in Patients With Heart Failure
Biventricular Pacemakers in Patients With Heart Failure

... failure have left bundle branch block with a QRS duration greater than 120 ms.5(p388) Indications noted by the American Heart Association for biventricular pacing include LVEF of 35% or less, left bundle branch block with QRS duration 150 ms or greater, and heart failure greater than class II accord ...
23 January 2013 Re: Emma Chu MRN: 1138650 DOB: 31/8/2012
23 January 2013 Re: Emma Chu MRN: 1138650 DOB: 31/8/2012

... 82%. She was started antifailure therapy, syr frusemide 4mg tds, syr aldactone 6.25mg bd. Emma was reviewed again on 5 Deember 2012. Clinically, she was better. Although she remained to have subcostal recession, she had less tachypnoea. Liver 2cm. Echocardiography showed dilated left atrium and left ...
Pharmacology I for dental students Course Description: It
Pharmacology I for dental students Course Description: It

... This is the main indication for the use of vascular smooth-muscle relaxants other than the nitrates. Diastolic hypertension is consequent to increased peripheral resistance, and therefore the rationale for lowering arterial pressure by using drugs that relax vascular smooth muscle is obvious. Previo ...
Genotype-phenotype assessment in autosomal recessive
Genotype-phenotype assessment in autosomal recessive

... fulfilled the criteria for diagnosis of ARVC. Four subjects had T-wave inversion in V1 and V2; three had mild right ventricular dilation, and one had T-wave inversion from V1 to V3 and mild right ventricular outflow tract dilation. Five of them also had the woolly hair phenotype. Palmoplantar kerato ...
Pathogenesis of heart failure
Pathogenesis of heart failure

...  In chronic HF, BP is in normal range due to the compensation (increased blood volume and sympathetic excitability).  In acute HF, BP is decreased due to low cardiac output. ...
A Rare Congenital Heart Disease – Cor Triatriatum
A Rare Congenital Heart Disease – Cor Triatriatum

... been rising steadily until recently when incidence of 12 to 14 per1000 live births, or higher has been observed.1 The reasons for the early lower incidence rates of 4 to 5 per 1000 live births is that only the most severely affected subjects were referred to a cardiac center. Isolated ventricular s ...
Heart Anatomy (cont)
Heart Anatomy (cont)

... The heart is posterior to the sternum within its own pericardial cavity and surrounded by the pericardium. The parietal pericardium is a dense, irregular connective tissue with an epithelial lining that secretes pericardial fluid into the cavity. Is the pericardium a mucous or serous membrane? The e ...
Triangulation of the Monophasic Action Potential
Triangulation of the Monophasic Action Potential

... repolarization slows down. Sertindole also affected the morphology of electrocardiographic T-waves. The morphological changes in this case can be described as flattening of the T-wave. Both MAP changes and ECG changes were dependent on the dose administered and importantly, the peak changes for both ...
Functional Anatomy of Heart
Functional Anatomy of Heart

... 2. Myocardium – cardiac muscle tissue 3. Pericardium – external layer ...
rajiv gandhi university of health sciences, karnataka
rajiv gandhi university of health sciences, karnataka

... women in the series in contrast to men, who constituted 24% of total male cases. There was a higher proportion of significant coronary artery disease in men compared to women. Most patients had evidence of ≥ 1 nonspecific structural cardiac abnormalities like mitral valve prolapsed, left ventricular ...
Vitals and History Taking
Vitals and History Taking

... Color assessed using lips, nail beds, inside of mouth, membranes of the eye Pull back glove to determine temp and ...
Chapter 18: The Cardiovascular System: The Heart
Chapter 18: The Cardiovascular System: The Heart

... B. The connective tissue endomysium acts as both tendon and insertion C. Intercalated discs anchor cardiac cells together and allow free passage of ions D. Heart muscle behaves as a functional syncytium XI. Cardiac Muscle Contraction A. Heart muscle: 1. Is stimulated by nerves and is self-excitable ...
cardiovascular fitness- the circulatory system
cardiovascular fitness- the circulatory system

... Cor pulmonale (right-sided heart failure) Congestive heart failure (left-sided heart failure) ...
The Circulatory System
The Circulatory System

EC2021-Medical Electronics Lesson Notes
EC2021-Medical Electronics Lesson Notes

... So, you are an inventor who has a better idea. Describe an improvement • to make the electrode cheaper • more suitable for lower noise measurement for EEG • circumvent patents that are based on plastic/foam electrode body • attractive to consumers for use with their ECG machines at home • reduce art ...
Overview: Impact on Life Underwriting:
Overview: Impact on Life Underwriting:

... Unfortunately, the reporting of heart murmurs is a subjective process. Analysis by the examining p hysician depends on the experience of that physician. A medical director will want to obtain other clinical data (especially APSs), to conclude what type of significance a particular murmur may have. M ...
Heart Disease - Ark Veterinary Centre
Heart Disease - Ark Veterinary Centre

... the additional training needed to learn how to perform the examination and because of the cost of the sophisticated equipment. ...
What Is Atrial Flutter/Atrial Fibrillation?
What Is Atrial Flutter/Atrial Fibrillation?

... What Is Atrial Flutter/Atrial Fibrillation? The heart has its own electrical system. This system makes the signals that start each heartbeat. The heartbeat begins in 1 of the 2 upper chambers of the heart (atria). A problem can make the atria beat faster than normal. The atria may beat fast but stil ...
Noncardiac surgery: Postoperative arrhythmias
Noncardiac surgery: Postoperative arrhythmias

... status is the key to management. Although this manuscript is focused on noncardiac surgery, findings from studies conducted after cardiac surgery can be extrapolated (albeit carefully) to these perioperative arrhythmias. Postoperative dysrhythmias are most likely to occur in patients with structural ...
circulation regulation
circulation regulation

... 1. Because the reflex adapts, it is only responsible for short-term regulation; that is, it becomes less effective over time OTHER CARDIOVASCULAR REFLEXES A.. Low Pressure Baroreceptor Reflexes 1. receptor location: atria 2. reflex action: vasodilation and hypotension; affect renal function 3. role: ...
Heart Failure Case Law
Heart Failure Case Law

Photoacoustic microscopy of blood pulse wave
Photoacoustic microscopy of blood pulse wave

... blood is passively regulated by valves and driven by the skeletalmuscle neither have a correlation with heart beat. Therefore, we focused on PWV measurements in peripheral arteries and arterioles. By definition, PWV is the distance traveled, Δl, by the blood pulse wave divided by the corresponding t ...
Congestive Heart Failure Pathophysiology and other relations
Congestive Heart Failure Pathophysiology and other relations

... diastolic filling thus reducing the end diastolic volume which reduces stroke volume and the cardiac output goes down – causing identical symptoms of pulmonary congestion and oedema on the left side and portal hypertension and peripheral oedema on the right; although if systolic function is preserve ...
Automatic Real-Time Embedded QRS Complex
Automatic Real-Time Embedded QRS Complex

... One of the important tools in early diagnosis of arrhythmias is analysis of electrocardiograms (ECGs) obtained from ambulatory long-term recordings. The design of novel patch-type ECG recorders has increased the accessibility of these long-term recordings. In many applications, it is furthermore an ...
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Electrocardiography



Electrocardiography (ECG or EKG*) is the process of recording the electrical activity of the heart over a period of time using electrodes placed on a patient's body. These electrodes detect the tiny electrical changes on the skin that arise from the heart muscle depolarizing during each heartbeat.In a conventional 12 lead ECG, ten electrodes are placed on the patient's limbs and on the surface of the chest. The overall magnitude of the heart's electrical potential is then measured from twelve different angles (""leads"") and is recorded over a period of time (usually 10 seconds). In this way, the overall magnitude and direction of the heart's electrical depolarization is captured at each moment throughout the cardiac cycle. The graph of voltage versus time produced by this noninvasive medical procedure is referred to as an electrocardiogram (abbreviated ECG or EKG).During each heartbeat, a healthy heart will have an orderly progression of depolarization that starts with pacemaker cells in the sinoatrial node, spreads out through the atrium, passes through the atrioventricular node down into the bundle of His and into the Purkinje fibers spreading down and to the left throughout the ventricles. This orderly pattern of depolarization gives rise to the characteristic ECG tracing. To the trained clinician, an ECG conveys a large amount of information about the structure of the heart and the function of its electrical conduction system. Among other things, an ECG can be used to measure the rate and rhythm of heartbeats, the size and position of the heart chambers, the presence of any damage to the heart's muscle cells or conduction system, the effects of cardiac drugs, and the function of implanted pacemakers.
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