Effectiveness of Public-Access Automated External Defibrillators at Tokyo Railroad Stations, published May 2021

Aim of the study was to investigate the effectiveness of public-access automated external defibrillators (AEDs) at Tokyo railroad stations. The study analysed data from a population-based registry of out-of-hospital cardiac arrests in Tokyo, Japan (2014-2018). The primary outcome was survival at 1 month after cardiac arrest with favourable neurological outcomes. Among 280 eligible patients who had bystander-witnessed cardiac arrest and received defibrillation at railroad stations, 245 patients (87.5%) received defibrillation using public-access AEDs and 35 patients (12.5%) received defibrillation administered by emergency medical services (EMS). Favourable neurological outcomes at 1 month after cardiac arrest were significantly more common in the group that received defibrillation using public-access AEDs (50.2% vs. 8.6%; adjusted odds ratio: 11.2, 95% confidence interval: 1.43-88.4) than in the group that received defibrillation by EMS. Over a 5-year period, favourable neurological outcomes at 1 month after cardiac arrest of 101.9 cases (95% confidence interval: 74.5-129.4) were calculated to be solely attributable to public-access AED use. The incremental cost-effectiveness ratio to gain one favourable neurological outcome obtained from public-access AEDs at railroad stations was lower than that obtained from nationwide deployment (48.5 vs. 2133.4 AED units). Conclusion: Deploying public-access AEDs at Tokyo railroad stations presented significant benefits and cost-effectiveness. Thus, it may be prudent to prioritise metropolitan railroad stations in public-access defibrillation programs.

https://pubmed.ncbi.nlm.nih.gov/33964334/

Saving Sudden Cardiac Arrest Victims in the Workplace

Saving Sudden Cardiac Arrest Victims in the Workplace by installing Automated External Defibrillators. Interesting report from OSHA (Occupational Safety and Health Administration) – stating that there are 220,000 victims of sudden cardiac arrest per year in the USA with about 10,000 sudden cardiac arrests occurring at work.  Studies with immediate defibrillation have shown up to 60% survival one year after sudden cardiac arrest.

https://www.osha.gov/sites/default/files/publications/osha3185.pdf

Where is my nearest defibrillator / AED in the UK?

How quickly you can find the nearest defibrillator / AED can be a matter of life and death. When someone is in cardiac arrest and not breathing, every second counts. If a defibrillator is used within the first 4 minutes of a person suffering a cardiac arrest, their chances of survival can increase to 70%, compared to just 5% if defibrillation is delayed. It’s shocking really, but there’s no centralised, national database of defibrillators in the UK.

Check out  http://www.nias.hscni.net/our-services/aed/aed-mapping/ that have lists of a number of AED locations.


History of ECG/EKG capture – the journey since 1873

Scientists began the journey to modern electrocardiography in 1873 thanks to the capillary electrometer—which was invented by Gabriel Lippmann to detect electric current. The machine consisted of metal wires and a tube with one thick end and one thin end that was filled with mercury and sulfuric acid.  Using the electrometer, British physiologist Augustus Desiré Waller developed the first EKG machine in 1887. It consisted of a capillary electrometer that was affixed to a projector. Electrodes were placed on the patient’s chest and back; when electrical current entered the tube, the mercury leapt up a short distance. The movement of the mercury, which represented the heart’s electrical pulses, was projected onto a photographic plate, a flat sheet of metal on which an image was recorded.

https://spectrum.ieee.org/the-institute/ieee-history/forget-electrodes-the-first-ekg-machine-used-buckets-of-saline-solution-and-telephone-wire

Intelesens Website Launch

We are delighted to launch our updated Intelesens website – which provides you with more information on the range of design, development and manufacturing services we offer to you.  

We are a specialist manufacturer of bespoke defibrillator and ECG electrodes are renowned for our design, validation, development and manufacturing excellence. Our product portfolio incorporates the design and manufacture of precision defibrillation and ECG electrodes.

Manufactured to the highest quality standards, we are proud of our strong technical and production expertise built around our customer’s exacting needs and requirements. 

If you would like to learn more, check out the website or just contact us

electrodes@intelesens.com,  +44(0)28 9073 6801 – we are here to help.