that administers an electric shock of preset voltage to the heart through the chest wall in an attempt to restore the normal rhythm of the heart during ventricular fibrillation. Defibrillation is a procedure used to treat life threatening conditions that affect the rhythm of the heart such as cardiac arrhythmia‚ ventricular fibrillation and pulseless ventricular tachycardia. The procedure involves the delivery of an electric shock to the heart which causes depolarisation of the heart muscles and
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getting enough blood with sufficient oxygen in it. Sudden cardiac arrest happens when the electrical system to the heart fails and becomes irregular; the heart begins to beat too fast and the ventricles quiver or flutter‚ which is called ventricular fibrillation. During this process blood is not delivered to the body‚ causing the person to lose consciousness due to the blood flow to the brain being so drastically reduced‚ and death is close unless the necessary treatment is administered immediately. Treatments
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Essay on EKG Replacement for missing work By Mohammad Chenchar http://www.webmd.com/heart-disease/electrocardiogram http://www.nobelprize.org/nobel_prizes/medicine/laureates/1924/einthoven-bio.html http://www.ecglibrary.com/ecghist.html EKG is an electrocardiogram‚ a machine used to check on problems with your electrical activity with your heart. An electrocardiogram machine translates the heart’s electrical pattern into lines that specific professionals can read
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trace** The ECG records 5 different waves that correspond with myocardial activity. The first wave is the P wave which occurs in response to atrial depolarization. Next the QRS complex occurs as a result of ventricular depolarization and may or may not include Q and S portions of the wave. Finally‚ the T wave is in response to ventricular repolarization. Atrial repolarization is not typically seen on the ECG because it happens around the same time as the QRS complex(reference text book). In order
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improve circulation in damaged heart muscles. He also developed ways to revive heart attack victims‚ including the defibrillator and CPR (AED). In 1947‚ Beck successfully defibrillated his first patient‚ a 14-year-old boy whose heart went into fibrillation after an operation. The defibrillator used on this patient was made by James Rand‚ a friend of Beck. It had silver paddles (the size of large tablespoons) that were used in
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Known CPR The Right Way One thing that ever person on earth should know is Cardiopulmonary Resuscitation (CPR).A person will never know when or were it my come in to use. A lot of people say that they know how to give CPR but‚ most of them will not give it in the create way or will panic and freeze up when the time comes. Hopefully this course will teach you the create process in CPR training. Hopefully you will never need to perform CPR but if you do you will now have the skills to save someone
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Kelly liu Arrhythmogenic Right Ventricular Dysplasia/Cardiomyopathy Blood is pumped to the lungs and the rest of the body due to coordinated muscular contractions in the heart. Different cardiovascular diseases can unfortunately affect the heart muscle and cause it to become weak‚ which decreases its ability to pump blood efficiently. Any type of cardiovascular disease‚ such as Arrhythmogenic Right Ventricular Dysplasia/ Cardiomyopathy‚ which weakens the heart muscle is categorized as cardiomyopathy
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the ventricles will still contract it will still be able to depolarize spontaneously. A form of treatment that can cause the atria to receive stimulation to is to have an implantation of an external pacemaker into the heart in order to cause the Atrial Muscle
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The cardiac cycle involves a sequence of events affiliated with the flow of blood within the heart during a complete heartbeat‚ which include atrial systole and diastole followed by ventricular systole and diastole. Systole indicates contraction whereas diastole indicates relaxation. The first phase of the cardiac cycle is Atrial systole‚ or Atrial contraction in which contraction of the atria tops off the ventricles‚ filling them to
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Premature Atrial Contraction A premature atrial contraction (PAC) is a kind of irregular heartbeat (arrhythmia). It happens when the heart beats too early and then pauses before beating again. PACs are also called skipped heartbeats because they may make you feel like your heart is stopping for a second. CAUSES Your heart has four chambers. Normally electrical signals spread across your heart and make all the chambers beat together. During a PAC‚ the upper chambers of the heart (atria) beat too
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