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The Heart - LifeSciTRC
The Heart - LifeSciTRC

... • Arrhythmia – irregular heart rhythm. • Extrasystole – premature contraction. • Fibrillation – rapid, irregular rhythm. • Murmur – abnormal heart sound. ...
An atrioventricular septal defect (AVSD)
An atrioventricular septal defect (AVSD)

... is doing) when they are 1-2 months old. There are medications that can help to decrease these symptoms. All babies with AVSDs will require surgery. The timing of the surgery depends on the symptoms that the baby develops and whether or not the medications help the symptoms. Almost all babies will ha ...
3 fetal chest and heart
3 fetal chest and heart

... • Many are undetected, and only appreciable at birth or beyond • 50% close spontaneously, may need surgical closure especially if large with shunting ...
Practical Approach to Anesthesia for Parturient with Cardiac Disease
Practical Approach to Anesthesia for Parturient with Cardiac Disease

... Maintain sinus rhythm. Prevent pain, hypoxaemia, hypercarbia and acidosis as these can increase PVR. ...
Rhythm and Pharmacology ACLS Preclass
Rhythm and Pharmacology ACLS Preclass

... Upon completion of this program, participants will be able to: 1. Review anatomy, electrophysiology, normal sequence in activation of the conduction system and EKG wave forms. 2. Review the process of identifying arrhythmias, determination of:  Rate  Pattern Regularity  QRS Width  Recognition of ...
Regulation of the Heart`s Functions
Regulation of the Heart`s Functions

... In a dog that is familiar with treadmill exercise, confronting him with the switch that turns on the motor-driven treadmill will characteristically induce changes in left ventrieular performance that simulate those produced by the running at 3 m.p.h. on a 5 per cenit grade (fig. 2C). The left ventri ...
Myocardial ischemia in the postanesthesia care unit: A case report
Myocardial ischemia in the postanesthesia care unit: A case report

... abnormalities are consistent with ischemia; however, as these changes can be attributed to changes in heart rate, blood volume, and vascular resistance.9 Tachycardia induced by pain should be treated with narcotics if the patient’s respiratory effort is not already compromised. Persistent elevated h ...
Medical Terminology
Medical Terminology

... Failure of the ventricle to eject blood efficiently results in volume overload, chamber dilatation, and elevated intracardial pressure. Retrograde transmission of increased hydrostatic pressure from the left heart causes pulmonary congestion; elevated right heart pressure causes systemic venous cong ...
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File

... Temperatures outside the human body affect many organs within it, the heart being one of them. Some people are concerned about being out in cold temperatures and what effect it has on the human body. We formed an experiment to determine whether cold temperatures had an effect on heart rate, compared ...
L. Környei
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... Competitive Sports Participation in Athletes including 20 with IC With Congenital Long QT Syndrome ences between the to the nonathletes wer ...
Understanding cardiomyopathy
Understanding cardiomyopathy

... myocardium weakens and loses its ability to pump or receive blood effectively. This predisposes the person to varying degrees of cardiac failure. In addition, persons with cardiomyopathy are often at increased risk of arrhythmia and sudden cardiac death. This article will address the incidence, path ...
What is Heart Disease? - Alvarado Veterinary Clinic
What is Heart Disease? - Alvarado Veterinary Clinic

... Symptoms of heart disease in animals can take many forms including activity or exercise intolerance, shortness of breath or difficult breathing, restlessness during sleep, fainting, and blueness (cyanosis). Often, heart diseases in animals will not cause obvious symptoms until the disease becomes ad ...
tachycardia - Campbell M Gold.com Home
tachycardia - Campbell M Gold.com Home

... Additionally, magnesium can also make the heart much less likely to become irritated. Foods such as soybeans, spinach, bran, nuts, whole grains, and beans contain high amounts of magnesium. A good quality magnesium/calcium/vit D supplement can used. Potassium - Potassium is beneficial as it has the ...
What is Congestive Heart Failure?
What is Congestive Heart Failure?

... If you have congestive heart failure, you’re not alone. About 5.0 million Americans are living with it today. In fact, it’s one of the most common reasons people 65 and older go into the hospital. It can take years for heart failure to develop. So if you don’t yet have it but are at risk for it, you ...
tmt 1
tmt 1

... – Decreased specificity of exercise testing, but sensitivity is unaffected. Therefore, a standard exercise test may still be the first test, with referrals for additional tests only indicated in patients with an abnormal test result. ...
What is Congestive Heart Failure?
What is Congestive Heart Failure?

... If you have congestive heart failure, you’re not alone. About 5.0 million Americans are living with it today. In fact, it’s one of the most common reasons people 65 and older go into the hospital. It can take years for heart failure to develop. So if you don’t yet have it but are at risk for it, you ...
Pacemakers and AICDs: The ABCs
Pacemakers and AICDs: The ABCs

Four-terminal impedance monitoring of cardiac output: an elegant
Four-terminal impedance monitoring of cardiac output: an elegant

... difference between the RV defibrillation coil and the smaller electrophysiology catheter ring were irrelevant. (There are some slight changes in the electrical field but those should have no first-order effects.) The voltage was sensed between two electrodes in the left ventricular (LV) lead in the ...
Pericardium and external features of Heart (1)
Pericardium and external features of Heart (1)

... The transverse pericardial sinus lies anterior to the superior vena cava and posterior to the ascending aorta and pulmonary trunk. The oblique pericardial sinus lies posterior to the heart in the pericardial sac. ...
Review on Aspirin to Treat and Prevent Heart Attacks and
Review on Aspirin to Treat and Prevent Heart Attacks and

... by 23 percent in patients who took the drug within 24 hours of the onset of symptoms. And when aspirin was combined with specialized drugs during this early treatment period, deaths decreased by 42 percent. Since about 50,000 heart attack patients who are hospitalized in the US die from the conditio ...
Chapter 18 - The Cardiovascular System: The Heart
Chapter 18 - The Cardiovascular System: The Heart

... Chordae
tendineae
anchor
AV
valves
to
papillary
muscles
 Aortic
semilunar
valve
lies
between
the
left
ventricle
and
the
aorta
 Pulmonary
semilunar
valve
lies
between
the
right
ventricle
and
pulmonary
trunk
 Semilunar
valves
prevent
backflow
of
blood
into
the
ventricles
 ...
Aerobics 11th Grade Study Guide Terms • Aerobic – means with
Aerobics 11th Grade Study Guide Terms • Aerobic – means with

... Aerobic exercise intensity – work within your target heart rate zone for a minimum of 25 minutes. Target heart rate zone – can be calculated by subtracting your age from 220 and then multiply by 75%. High school students have a target heart rate zone of around 140 to 160 beats per minute. High schoo ...
Risk Stratification in Frequent Ventricular Extrasystoles: The
Risk Stratification in Frequent Ventricular Extrasystoles: The

Antenatal diagnosis of fetal heart malformation
Antenatal diagnosis of fetal heart malformation

... ­abnormalities such as hypoplastic left heart and double outlet/ inlet ventricle of 84 per cent and 74 per cent respectively, whereas detection rates in more subtle lesions such as coarctation and ­transposition were 26 per cent and 17 per cent ­respectively.2 ­Identification of all these abnormalit ...
Heart Big idea and assignment info
Heart Big idea and assignment info

... What are the health risks associated with watching TV? 2) What is the average amount of time Americans spend watching TV? 3) What indicators or data can be used to determine which group of people is most likely to have a higher risk of premature death? 4) Think about your lifestyle. What is your lev ...
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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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