Can't a bloke have a beer without getting drawn into a conversation about sedating head injured patients?
here's my question for you (or anyone else for that matter)
What would you with a combative trauma pt with low-ish bp that is combative? Morphine or valium?
My reasoning in regards to the opiates over benzos is, as others have correctly stated, that in general its a good idea to treat the actual problem rather than cover it up.
The idea is that you're actually treating their pain rather than just sedating them beyond the point of being able to experience it. For a perfectly compliant patient with an isolated femur fracture, we don't sit there and give midaz until they are so unconscious that they are no longer capable of experiencing pain. That would be absurd and dangerous. We treat their pain directly, such that they can be sitting there talking to us but still be relatively comfortable. This means they get relatively less of the drug in question which hopefully equals less of an affect on conscious state, haemodynamics etc. Why should it be significantly different for a pt who also has a head injury. I would argue that it is more important for a patient with a head injury given the deleterious affects of hypotension, hypoventilation & hypoxia.
I would argue because it is more likely to actually treat the cause (or part there of) of their agitation and because we really can't say for sure that their head injury makes them incapable of experiencing pain, that the lower doses involved, relatively speaking, make this both a safer and more humane way of treating these patients. A much better way to effectively sedate to facilitate assessment/treatment/pre-oxygenation for RSI.
I have applied, and seen others apply, the same logic to combative ROSC patients, combative intellectually disabled patients (pain or frustration is almost always the cause of their combativeness in my experience), and also children who have had too much red cordial. A little fentanyl and they're happy to sit there and stare at you with a stupid grin while you prepare for whatever torturous procedure you have in mind.
If not fentanyl, I would still prefer morphine over diaz or midaz. The risk of hypotension is ridiculously overstated with opiates. The vast majority of patients I see have a return to normal BP (either up or down). That said, it is the kinds of patients we're talking about who are most at risk...the hypovolaemic kind. The problem is similar with benzos though and for the reasons stated, I'd still argue you're ganna get more bang for your buck (and therefore, less adverse reactions) with an opiate.
If a patient is combative, it is rarely because of pain, however. A combative trauma patient should be assumed to have a head injury.
Absolutely....and RSI may shortly follow if appropriate. However, I don't know that I agree that the combativeness is rarely because of pain. Sure their head injury is a problem and they can be combative from that alone, but I strongly believe their is a subset of multi-trauma pt whose combativeness can be quelled with analgesia. My admittedly limited experience with even small amounts of morph or fent in these patients has been convincing and the idea overall is not mine alone...I was taught it by other far more senior Intensive Care paramedics who have considerable experience in the matter. I believe based on experience, the idea is even tentatively supported from an official point of view to facilitate preparation for RSI.