Intended for healthcare professionals


Cardiac defibrillators and other stories . . .

BMJ 2014; 349 doi: (Published 10 December 2014) Cite this as: BMJ 2014;349:g7491

How about creating a world where the accurate summarised results of every clinical trial can be fully accessed by everyone? By a quick web search, patients and clinicians alike could know the true benefits and potential harms of every intervention and also find out how ongoing trials are investigating important uncertainties. It’s a vision that Iain Chalmers has been pursuing for decades, but a study that assessed 14 primary clinical trial registries listed on the WHO International Clinical Trials Registry platform between January and February 2013 shows just how far we are from realising it (Trials 2014;15:428, doi:10.1186/1745-6215-15-428). Each online site differed in its characteristics, making it formidably difficult for ordinary patients or clinicians even to find out what trials have been completed or are being carried out.

Millions of automated external defibrillators (AEDs) stand ready for use across the developed world. For people with an out of hospital cardiac arrest caused …

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