hi all,
@samdive
It sounds to me as if you see a rescue more like a random affair rather than a rehearsed reply to a standard problem. Maybe I misunderstand something?
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Originally Posted by samdive
There is no AIDA style precisely because the way you lift someone will depend on a load of factors…
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That almost implies that one has to learn a large number of different rescue techniques to accommodate all those varieties. The more complicated a technique becomes the less likely it will work. Especially when considering the sad fact that most freedivers hardly ever practice rescues. If there is a possibility to drop a bo’d diver, or if the safety diver has problems when using a mono, then the technique that is applied is surely inefficient. Can an efficient technique be based on improvisation?
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Originally Posted by samdive
…you need to get the person to the top as quick as you can without dropping them, and if at all possible, hold their mouth shut while you do so. If you can also arrive on the surface in a position where you are going to easily be able to keep them afloat, hold their airway open and check for breathing - even better.
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In a rescue scenario I do not believe there is a place for “if possible” or “if you can…even better”. Water in a bo’d divers lungs can lead to drowning or secondary drowning. This is a potentially life threatening situation. Water in the mouth/throat can delay recovery from the bo which increases chances of brain damage. Therefore the rescuer is better SURE of what and how he/she is doing things and aware of their responsibilities.
An efficient and rehearsed way of getting a bo’d diver to the surface will dramatically increase chances of a quick recovery of the victim (i.e. spontaneous breathing). If complications are developing that make CPR necessary you are pretty much fucked. How many people have a proper platform right at their dive site or a proper rescue plan beyond bringing the victim to the surface?
@mr x.
the topic started with the question whether water can enter a bo'd divers lungs during ascent. regarding the buoyancy issue, spotting at 15m max means both divers are pretty much neutral. the deepest i practise rescues is 20m and even from there the strain on the neck is minimal. of course, i am not yanking on the guy. dropping the weightbelt is surely something that needs to be considered then.
also, if a diver needs a safety diver to meet him at 20m because he feels a real chance of blacking out at that depth he most certainly is way past his capabilities and should rather limit the depth somewhat.
during all practice we never found the heimlich maneuver to work reliably with both divers (rescuer and victim) floating on the surface. it's just too difficult to keep the victims head out of the water (even without weightbelts on and in pool-like conditions). i'd rather put priority on a fast evacuation to a platform or shore.
any comments on that?
Cheers,
Roland
