| The history of automated external defibrillator is filled | | | | researches hoping to find ways to treat conditions |
| with successful reports on the AED as a breakthrough | | | | linked with sudden death in individuals. Early studies |
| in saving numerous patients with life-threatening | | | | were conducted around power utility workers, who |
| cardiac arrhythmias of the ventricular fibrillation and | | | | had one of the highest mortality rates due to |
| ventricular tachycardia. The device has gone through | | | | ventricular fibrillation. |
| major advancements throughout the decades in | | | | Medical establishments were then finally able to use |
| restoring normal heart rhythm and in accessibility. | | | | modified versions of AEDs. During this time only |
| Advancements In the History of Automated External | | | | doctors and other medical staff were able to use |
| Defibrillator | | | | AEDs on patients. For example, the AED was |
| An alternating current was used in conjunction with | | | | commonly used in the ambulance during emergencies. |
| earlier models of the AED. In 1947, one of the first | | | | Much later in the history of automated external |
| AEDs was used on a human with successful results. | | | | defibrillator, AEDs are being situated in public |
| Newer modifications of the AED opened doors to | | | | environments such as schools, transportation stations, |
| safer procedures such as closed chest defibrillation, | | | | hotels and malls. Places that had higher risks of serious |
| where electrodes were sent via the chest wall of | | | | heart conditions usually now have AEDs available. |
| tested laboratory animals. The method was then | | | | High-risk places include work environments mainly |
| applied to human patients and ended up successful. | | | | consisting male employees aged over 50. Accessibility |
| In the history of automated external defibrillator, three | | | | of AEDs in these places is vital in urgent |
| more devices emerged together with CPR. The | | | | circumstances. |
| devices used alternating current techniques and | | | | In the modern day AEDs can be easily purchased and |
| required surgery. The surgery that had to be | | | | placed in the home. This has given relief to patients |
| performed before the application of the these devices | | | | who are staying at home and are not located in |
| sounded inconvenient and daunting to many. | | | | hospitals. Then again, some medical specialists are |
| Hence the development of closed chest direct current | | | | concerned over the unprofessional use of AED on |
| defibrillators, which caused less-serious side effects | | | | patients. |
| and was more effective. In this case, electrodes were | | | | In the beginning of the history of automated external |
| applied externally. Later on, new designs for both | | | | defibrillator, the thought of using defibrillation at home |
| internal and external application emerged. | | | | seemed vague. But since its introduction to public |
| Accessibility | | | | environments a growing number of individuals have |
| The history of automated external defibrillator contains | | | | embraced the idea of the home use of defibrillators. |
| a significant change in accessibility. In the beginning, the | | | | The devices are now accessible in both medical and |
| AED was being used among scientists and | | | | commercial institutions. |