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Heart Disease powerpoint
Heart Disease powerpoint

... Heart disease is any condition that reduces the strength or functioning of the heart and blood vessels. Heart disease kills more American adults than any other cause of death. A high-fat diet, lack of physical activity, and genetic factors may all contribute to the development of heart disease. ...
Heart Failure - Canis Maximus
Heart Failure - Canis Maximus

... the tissues). Specially formulated low-sodium diets, such as Prescription Diet h/d made by Hill's, are available from your veterinarian. However, dogs (like people) often find salt-free diet food unpalatable at first, so it may take some determination on the owner's part to make this essential chang ...
Document
Document

... • The shorter the PR interval, the louder the first heart sound (mitral valve leaflets are wide open and deep within the ventricle when contraction begins causing the leaflets to close forcefully. • The longer the PR interval, the softer the first sound • The PR interval directly influences the posi ...
Chapter 18- The Heart
Chapter 18- The Heart

... cells located in the interatrial septum. This is the site where signal is delayed so ventricles fill. • 4. Atrioventricular bundle (bundle of his)- heart cells that carry an impulse to the interventricular septum. • 5. Bundle branches (left/right)- heart cells that carry an impulse from the interven ...
13181_2014_401_MOESM2_ESM
13181_2014_401_MOESM2_ESM

... 17) A 22-year-old woman with a history of depression presents to the ED 4 hours after ingesting 100 tablets of aspirin (325 mg) in a suicide attempt. She denies any other ingestions. Her vital signs are: blood pressure,110/60 mm Hg; heart rate, 120 bpm; respiratory rate, 22 breaths/min; temperature, ...
shape analysis of the left ventricular endocardial surface and its
shape analysis of the left ventricular endocardial surface and its

... Classification Accuracy A 20-bin histogram of the shape index value is computed for each of the 17 segments. The 17 × 20 = 340-dimensional data is reduced to 1 dimension using Linear Discriminant Analysis (LDA). Classification is performed in the 1D Figure 1: Left ventricle endo-surface segmentation ...
Occurring During Cardiac Catheterization
Occurring During Cardiac Catheterization

... esophageal and other leads were recorded. The most frequent mechanism was retrograde conduction to the atria with varying degrees of V-A (ventriculo-atrial) block which occurred in 26 of the 38 patients. Runs of ventricular tachycardia with one-toone V-A conduction occurred in 13 patients. Runs with ...
091907 Health Page tab
091907 Health Page tab

... hooked up to the state-of-theart telemetry system, which measures, records and transmits the electrical activity of the heart while the patient is exercising. With a baseline EKG obtained from the patient’s physician, the telemetry helps the staff detect irregular heart rhythms or problems during ex ...
In a Heartbeat - Oklahoma 4-H
In a Heartbeat - Oklahoma 4-H

... was a method used by physicians at that time. He remembered a trick he learned as a child, that sound travels through solids, so he rolled up 24 sheets of paper, placed one end to his ear and the other end to the woman's chest. He was delighted to discover that the sounds were not only conveyed thro ...
Athletes and Sudden Cardiac Death
Athletes and Sudden Cardiac Death

... 3. Excessive exertional and unexplained dyspnea/fatigue, associated with exercise 4. Prior recognition of a heart murmur 5. Elevated systemic blood pressure 6. Prior sport restriction 7. Prior cardiac testing Family history 8. Premature death before age 50 years due to heart disease in ≥1 relative 9 ...
Langendorff - ADInstruments
Langendorff - ADInstruments

... Traditionally, constant perfusion pressure in a Langendorff setup is maintained by a complex and delicate system of elevated reservoirs. ADInstruments has introduced an electronic pressure/ flow feedback system to the Langendorff apparatus, to allow easy switching between constant flow and constant ...
Narrow Complex Tachycardias - Calgary Emergency Medicine
Narrow Complex Tachycardias - Calgary Emergency Medicine

... 78 yo F presents w/ NCT Hx of PSVT – ECG looks identical Had severe side effects w/ adenosine previously & refuses repeat Does not want to be shocked either When you ask for Verapamil the nurse points out her pressure is only 88/65 What can you do? ...
Pre-operative - Affinia Health Network
Pre-operative - Affinia Health Network

... 1. No consult for eye surgeries, colonoscopy or EGD 2. No need to repeat testing or consult if no change in symptoms and most recent tests less than 12 months old 3. Stress testing is not indicated in the perioperative patient solely because of the surgery if there is no other indication 4. Resting ...
Lecture 17
Lecture 17

... Damage to the mitral valve could result in an inefficient flow of blood from the _____________ to the _________________. (a) Pulmonary trunk to right ventricle (b) Right atrium to right ventricle (c) Left ventricle to aorta (d) Right ventricle to left ventricle (e) Left atrium to left ventricle ...


... working or that you are having a heart attack (but, people with heart failure often have had a heart attack in the past). Heart failure is also called congestive heart failure, or CHF ...
Exercise 31
Exercise 31

...  Is stimulated by nerves and is self-excitable (automaticity)  Contracts as a unit  Has a long (250 ms) absolute refractory period ...
Properties of Cardiac Muscle
Properties of Cardiac Muscle

... timing and strength of each heart beat but do not establish the fundamental rhythm. ...
The Cardiorespiratory System
The Cardiorespiratory System

... Cardiac Muscle Contraction • Specialized conduction system of cardiac muscle that provides the rhythm for the heart rate includes: – Sinoatrial (SA) node • Located in the right atrium. • Called the “pacemaker” because it initiates the heartbeat ...
Heart failure
Heart failure

... Endocrine dysfunction (thyroid) Conditions/diseases which damage the blood vessels (diabetes, rheumatic fever) Emotional stress Excessive physical stress ...
Chapter 11 Slides
Chapter 11 Slides

... Basic Pathophysiology ...
Added Spectral Features in ECGs From Patients With Ventricular
Added Spectral Features in ECGs From Patients With Ventricular

... Fourier analysis of the signal-averaged ECG (SAECG) has previously revealed significant differences in magnitude spectra that differentiate patients with ventricular tachycardia(VT) from those without VT. To determine additional distinguishing features in the frequency domain, we analyzed phase spec ...
L5 Heart anatomy
L5 Heart anatomy

... On each side are two chambers. ...
Diseases and hygiene of the cardiovascular system
Diseases and hygiene of the cardiovascular system

... change in the rhythm, producing an uneven heartbeat, or a change in the rate, causing a very slow or very fast heartbeat. ...
The Heart
The Heart

... Heart Transplantation • People who require heart ...
Long-term Survival Possible for Pediatric Heart Transplant Patients
Long-term Survival Possible for Pediatric Heart Transplant Patients

... 82.5% (151) were currently alive and showed good heart function at most recent follow-up. Their average ejection fraction was 62%, meaning that 62% of the blood in the left ventricle was pushed out with each heartbeat. A normal ejection fraction is between 55% and 70%. “Our study demonstrates that p ...
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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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