Thursday, 24 November 2011

What Is the Difference Between a Heart Attack and Cardiac Arrest?

!±8± What Is the Difference Between a Heart Attack and Cardiac Arrest?

Although you may have heard the terms cardiac arrest and heart attack used interchangeably, they are two distinct situations with different symptoms and effects. The term heart attack refers to the muscle tissue in the heart being damaged by lack of blood flow. When a person experiences a heart attack, it is usually due to a blood clot in one of their heart's major arteries which drastically limits or stops the blood flow to the heart. Once the flow of blood is cut off from the muscle tissue in the heart, it will begin to die and cause severe chest pains.

Symptoms of Heart Attack:
Chest Pain Pressure, heaviness or tightness in the chest Pain or pressure in the neck or jaw Shortness of Breath Sweating Pain or throbbing at or in-between the shoulder blades

The condition cardiac arrest refers to when the heart actually fails to pump blood to the bodies vital organs. In the case of cardiac arrest, the heart will either stop pumping blood adroitly, or vary in speed which would render it useless. A person experiencing cardiac arrest can die within four minutes if not immediately receiving efficient medical attention. There are three main causes for sudden cardiac arrest are ventricular fibrillation, ventricular tachycardia, and asystole.

Ventricular Fibrillation

Ventricular fibrillation occurs when the heart muscle begins to quiver erratically, leading to a loss of blood flow through the heart.

Treatments for ventricular fibrillation include CPR and defibrillation

Ventricular Tachycardia

Ventricular tachycardia is a problem in which a recurring loop in the conduction pathways of the heart gives way to rapid contractions of the ventricles.

As a result, the victims blood pressure and overall blood flow will be greatly reduced due to the inability of the ventricles to fully fill with blood between contractions

Asystole

Asystole is the absolute standstill of the heart muscle

It is very important to recognize the difference between a heart attack and cardiac arrest. In the instance of a heart attack, immediately seek medical attention by calling 9-1-1 or getting to your local ER center. In a cardiac arrest situation, immediate action has to be taken to save the person's life in the form of an automatic external defibrillator (AED). The AED unit is a small, portable, and civilian friendly (easy to use) defibrillator that can be used in order to jump start a persons heart long enough for medical attention to arrive.


What Is the Difference Between a Heart Attack and Cardiac Arrest?

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Tuesday, 15 November 2011

Looking After the Health of Your Defibrillator Battery

!±8± Looking After the Health of Your Defibrillator Battery

A defibrillator is not going to run correctly unless the defibrillator battery is working. A defibrillator battery creates the charge of energy that travels through the rest of the defibrillator to jumpstart the heart. Without an energy source, the defibrillator simply won't work.

Battery Interaction

Defibrillator batteries are used in both internal and external defibrillators. In an internal defibrillator, or defibrillator implant, the entire defibrillator is placed in the person's chest. The battery in a defibrillator implant sends a charge through an electrode wire. The electrode wire is actually placed in a vein in the heart's chamber. This allows it to deliver the shock immediately when it detects and irregular heartbeat. Defibrillator implants are only placed in people who have serious heart conditions.

The other type of defibrillator is called an external defibrillator. This device is used by emergency technicians when a patient is going through cardiac arrest. Cardiac arrest occurs when the heartbeat becomes extremely irregular (usually it speeds up) and prevents the heart from delivering blood and oxygen to vital organs.

An external defibrillator battery is connected to two pads. These pads are the size of a man's hand. They are placed on a person's chest. The battery is housed in a carrying unit. When it's needed, it sends the charge through the pad chords to the pads. After the shock, the person should make some kind of movement between 10 and 12 seconds.

Keeping Your Battery Charged

Anything that's battery operated requires a well maintained battery. Your remote control won't work if the batteries are dead and neither will your defibrillator. If you're getting a defibrillator implant, make sure you go over the battery function with your doctor. Your doctor will program the implant to beep when the battery is running out of power. You'll also be expected to have a check up every three months to make sure the battery is working correctly.



When your defibrillator battery is ready to be charged, you'll use some kind of external charger to juice it up. External defibrillators are also charged through some sort of external source. These batteries generally have a shelf life of four years. Though these defibrillator batteries last for a while, they will need to be replaced at some point.

Disposing of the Battery

As people have become more environmentally conscious, defibrillator providers have started to offer battery-recycling services. For example, the AED Superstore will recycle defibrillator batteries. All you have to do is discharge the batteries and ship them to the company.

You do not have to recycle your defibrillator battery, but it is an environmentally friendly gesture and it's not expensive. All you have to pay for is the shipping costs to send your defibrillator battery to the superstore.


Looking After the Health of Your Defibrillator Battery

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Wednesday, 9 November 2011

The Function of Automated External Defibrillators

!±8± The Function of Automated External Defibrillators

Automated External Defibrillators (AEDs) are not vastly dissimilar from the ones many of us have seen for years on medical shows or in emergency rooms at hospitals. The device exists to correct a fibrillation, or irregular heart rate that is negatively impacting blood flow, but unlike the standard defibrillators, the automated external defibrillator can be operated by any citizen; even those with little or no medical training.

When a person experiences cardiac arrest or a heart attack, a defibrillator is placed on the chest and an electric current or shock is channeled via electrodes or paddles. The shock is intended to jolt the patient's elevated and chaotic heart rhythm back into a normal range, thus returning blow flow to normal levels. But in the case of the automated external defibrillator, or AED, the device determines whether or not a shock is warranted, and if so, what level of energy is required to revive the patient. The user cannot override the determination of the AED, and therefore an inexperienced person without medical training need not worry about using the defibrillator on a patient not actually in cardiac arrest.

Due to this drastically reduced risk of abuse, the AED has become a fixture at various public forums such as airports, casinos or sports arenas. There have been many cases where individuals, particularly athletes or the elderly, have been stricken by sudden cardiac arrest only to be saved by the presence of an automated external defibrillator.

One brand of AED available to the public, the Zoll AED Plus, has many features designed to make the use of the defibrillator as simple as possible for someone with little or no medical background. It includes a graphical user interface and voice prompts that will walk the user, step by step, through the entire process, as well as a single pad that eliminates the confusion of placing electrodes on the patient's body. In addition the Zoll AED Plus runs on conventional batteries, promising both convenience and financial savings.

The American Heart Association strongly supports the placement of Automated External Defibrillators or AEDs in any public places where immediate cardiac care may be needed. Other prime targets include shopping malls, gated communities and office complexes.

For those interested in purchasing an AED for use in their community or organization, the FDA may require a physician's prescription for the device. Your local EMS system can assist you in determining the local and state protocols for owning and operating an AED.

There are also AED training and education courses available through the American Heart Association. One such course is the new Heartsaver AED course that combines CPR and AED training.

With the immergence of Automated External Defibrillators or AEDs, the potentially life saving measure of averting cardiac arrest has been made available to the general public with a very low risk of misuse or abuse. As AEDs continue to appear in more and more public domains, the hope is that the tragic results of sudden cardiac arrest or heart attack can be reduced significantly, giving regular people the chance to be a hero.


The Function of Automated External Defibrillators

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