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Cardiac Resynchronization Therapy
Cardiac Resynchronization Therapy

... and 30% of patients receiving CRT do not appear to gain in benefit. The recently completed CAREHF trial, the largest with longest follow-up CRT-only trial to date, found about 40% of subjects receiving CRT still had worsening of heart failure.18 There are several potential reasons for this. First, t ...
realized by autonomic nervous system
realized by autonomic nervous system

... Baroreceptor reflex • Baroreceptor continuously generate AP in response to the ongoing pressure within the arteries (constantly provide information about BP to the center) • BP increase, the receptor potential of the Baroreceptor increase, the rate of firing in the afferent neurons increase ...
Assessment of Proper Physiologic Response with
Assessment of Proper Physiologic Response with

... defibrillate a patient whose tachyarrhythmia(s) might otherwise be convertible by an ICD system. In order to deliver defibrillation therapy, the single-coil lead must be implanted with a separate defibrillation electrode. BSC recommends using the single-coil lead with a pectorally implanted device t ...
Jan De Pooter - Ghent University Library
Jan De Pooter - Ghent University Library

... echocardiographic follow-up at 6 months post- CRT implantation. Response to CRT was defined as an increase of at least one class in New York Heart Association (NYHA) classification together with an increase in echocardiographic left ventricle ejection fraction (LVEF) of > 7.5 % (measured by biplane ...
pulmonary venous return via the superior vena cava
pulmonary venous return via the superior vena cava

... the City General Hospital, Leicester, for their help, and Mr. Calder, senior Radiographer to the Royal Infirmary, Leicester, for taking the photographs. ...
Guided Lecture Notes
Guided Lecture Notes

... o Test of ventricular function and wall motion o Computed tomography (CT) o Positron emission tomography (PET) o Magnetic resonance angiography (MRA) Describe the specific nursing care of the patient undergoing a cardiac catherization. (Refer to PowerPoint slides 29 and 30.) o Nursing responsibiliti ...
BIOL242Chap18HeartOCT2012
BIOL242Chap18HeartOCT2012

... Impulse  passes  to   heart  apex;  ventricular   excita5on  begins ...
ECG Interpretation and Clinical Significance
ECG Interpretation and Clinical Significance

... the different waveforms and their patterns. The next step is to match all the information to the specific ECG rhythm criteria in order to classify the various cardiac dysrhythmias. In this chapter, you are introduced to the rhythm criteria used to identify the various cardiac dysrhythmias. You will ...
Lenient versus Strict Rate Control in Patients with Atrial Fibrillation
Lenient versus Strict Rate Control in Patients with Atrial Fibrillation

... Follow-up was terminated after a maximum follow-up period of 3 years or on June 30, 2009, During the follow-up period, the resting/exercise heart rate was assessed by the attending physician at each visit. If rate-control drugs had to be adjusted, 24-hour Holter monitoring was repeated to check for ...
Association Between Left Atrial Compression And Atrial Fibrillation
Association Between Left Atrial Compression And Atrial Fibrillation

... arrhythmia characterized by irregular, disorganized and rapid atrial activation leading to an irregular ventricular rhythm.1 Almost any cardiovascular condition can predispose to AF, common causes being hypertension, coronary artery disease, heart failure, valvular heart disease, cardiomyopathy, per ...
South African Heart Association
South African Heart Association

... an in-depth discussion of two cases by a South African and a British expert – a session that was well attended and received. I want to congratulate and thank all who were involved. Other contributions by South Africans included abstract presentations by Dr Graham Cassel, a representative of Dr Farre ...
Lecture_8_Cardiovascular System_13
Lecture_8_Cardiovascular System_13

... The Conduction System of the Heart • The bundle of His is located within the interventricular septum and continues through the ventricle as the ventricular Purkinje fibers • Purkinje fibers carry impulses through the ventricular muscle causing the ventricles to contract ...
Cardiac Meds - hostedvoipinfo.net
Cardiac Meds - hostedvoipinfo.net

... • Function of the volume of blood to the LV and the compliance (ability of the ventricle to stretch) of the ventricles at the end of diastole (LVEDP) • Factors affecting are: venous return, total blood volume and atrial kick • Hypovolemic patient has too little preload • Heart failure patient has to ...
Immunohistochemical analysis
Immunohistochemical analysis

... Sudden Cardiac Death (SCD) is usually unexpected death from arrhythmia or acute ventricular failure. This can happen to an individual with or without known pre-existing heart disease. Cardiac arrest occurs after a while when the heart’s output is absent or inadequate and is followed by circulatory c ...
Update on Global Heart Failure Program
Update on Global Heart Failure Program

... the funding requirements for the program. The growing body of clinical evidence validates our strong conviction in the potential of our product candidate MPC-150-IM to change the way that advanced heart failure is treated. We thank our partner Teva for having brought our Phase 3 heart failure progra ...
Pre-participation screening in the young competitive athlete
Pre-participation screening in the young competitive athlete

... naire and ECG were used to screen athletes and nonathletes. A study of the program was conducted between 1989 and 1997 and the authors found the screening to be cost-effective ($8800/year of life saved) and useful in identifying hypertrophic cardiomy­ opathy (HCM) and reducing SCD.11 However, over t ...
ACS - Faculty Sites - Metropolitan Community College
ACS - Faculty Sites - Metropolitan Community College

Basic Chest X-ray Interpretation: Programme 1
Basic Chest X-ray Interpretation: Programme 1

... The hila are made up of the proximal pulmonary arteries and veins and main bronchi. Lymph nodes are also present here but are normally too small to be seen on chest radiograph. However they can become visible when pathologically enlarged. The left hilum* is usually about 1cm higher than the right* a ...
Slide 1
Slide 1

... Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT®, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for dat ...
Lab 5: The Heart and Blood Histology
Lab 5: The Heart and Blood Histology

... http://www.heartpoint.com/theheart.html ...
FINAL EXAM Prep Part 2
FINAL EXAM Prep Part 2

... • It is the failure of the right side of the heart brought on by long-term high blood pressure ...
Congenital Heart Defects - Children`s Hospital of Wisconsin
Congenital Heart Defects - Children`s Hospital of Wisconsin

... 10% of the cases of congenital heart disease. most common cyanotic heart defect involves four (Greek tetra = four) anomalies of the structure of the heart:  1) A large ventricular septal defect (VSD)  2) A narrowing (stenosis) of the outflow tract (infundibular stenosis) from the right ventricle i ...
supplement
supplement

... The SAR was illuminated within a narrow region of interest (ROI). The sinus lip continued beating while atrial and ventricular contractions were blocked. Supplementary Movie 7 | Illumination of three cells blocks heartbeat. NpHR activation in approximately three cells in the right half of the SAR in ...
Heart Sound Classification from Wavelet Decomposed Signal using
Heart Sound Classification from Wavelet Decomposed Signal using

... lungs and blood using a stethoscope to provide information about the valve functioning, rate and rhythm, and anatomical defects of the heart. Auscultation has become official diagnostic method after the invention of the stethoscope in 1816 by Laennec [2]. Thus, by providing critical initial clues in ...
The Heart
The Heart

... also called: epicardium ...
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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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