This topic is interesting and very diverse. The issues invovled with the current state and the future of prehospital intubation are multifaceted. Like any other treatment we are discussing there are several questions that should be answered before we begin using it.
To me, we as clinicians need to first look at available evidence to determien what is the best treatment for our common patients' conditions.
Then we need to evaluate that treatment to determine if it can be accomplished safely and effectively in the pre-hospital environment.
If it can be, then we must develop a evidence based protocols and a QA/QI process to monitor it's use.
If it can not, then we shold look for the next best treatment for the given condition that can be safely performed and then develop a protocl and QA/QI process.
These basic steps should be evaluated for more then just intubation. Really we should look at everything we do using this method. Our goal shuold be patient outcome.
In my opinion after evaluating evidence, There are certain patients (Trauma Patients with decreased GCS, respiratory failure, etc...) for whom intubation using RSI is the best treatment. However, it can only be performed safely and effectively in the field if it is afforded a suitable amount of education and ongoing practice. If these two things are not present then intuabtion should not be an option for EMS providers and SGA's should be the next best option (and the only option for CPR, pending further research on this).
Now, the piece of this whole conversation that got me interested was the discussion on paralysis vs. sedation & analgesia for post intubation management.
In my experience, including several years as a flght paramedic, I have seen many providers use unnecessary paralysis. Generally they use the excuse that it is for flight safety or because the patient "can't be sedated". Too many times though I have seem patients who are simply under-sedated and the provider uses paralysis to make their life easier instead of properly sedating and providing pain relief. Often these providers move immediately to long term paralysis post intubation and then neglect the sedation that must accompany it. This usually results in patients who lay perfectly still (so the crew is happy) but are under-sedated and in pain (the patient is being tortured). I generally will push to use liberal sedation and analgesia and try to avoid vec unless absolutely necessary.
Like someone else mentioned, there are issues with completely making someone vent dependant even for a short time. These patients generally do better if allowed to mantain their own respiratory drive and are placed on "support" instead of mandatory ventilation.