Apptech wrote:
>> Has anyone here built a heart beat logger? I'm wanting to log each beat,
>> not the average rate.
>>
>> It would be worn by the user while sleeping. Wireless would be ideal,
>> but tethered is not out of the question.
>>     
>
> For interest - what is the reason?
>   

Hi Russell,
Someone I know has an ongoing issue (last few years) of an occasional 
feeling of racing heart, accompanied by feeling "odd / shaky" at that 
moment. Almost always while sleeping (it wakes them up), but it has 
occurred while awake a few times.

They have tried wearing a 24 hour heart monitor (on loan from hospital), 
but Murphy's Law has always meant that the symptom has never occurred 
when the monitor was present.

In a given month, the effect may happen 0 - 8 times, seemingly with no 
pattern. Various doctors and specialists are yet to figure out what is 
going on.

Since the episodes are fairly brief and hard to capture, there is 
uncertainty on whether the heart is doing weird stuff, or it just feels 
that way.

The logger idea was to try to record heart beat data over extended 
periods for review if an episode had occurred. Hopefully this data may 
help doctors get further down the path to a solution.
David...

-- 
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David Duffy        Audio Visual Devices P/L
Unit 8, 10 Hook St, Capalaba 4157 Australia
Ph: +61 7 38235717      Fax: +61 7 38234717
Our Web Site: www.audiovisualdevices.com.au
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