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HILLIAM_SWINNEY t1_j1ua7ii wrote

Reply to comment by Q8DD33C7J8 in Nerve block (an injection around a major sensory nerve for the shoulder) is an effective treatment for painful shoulder condition by giuliomagnifico

Yep. I had a temporary nerve block for a surgery on my elbow, and they assured me I wouldn’t feel my arm for at least 24 hours. It lasted for about 3 hours post op, leaving me in way more pain than the pain meds could help with

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Q8DD33C7J8 t1_j1uad4a wrote

Yep. I don't know how it can go sooo wrong? Like I get that it won't work exactly the same on everyone but geez weeks versus hours is a bit of a range.

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midge_rat t1_j1uwby0 wrote

Is your husband a redhead by any chance, or have a redheaded parent?

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Q8DD33C7J8 t1_j1wrsu0 wrote

He had a red cast to his hair as a child

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WonkyHonky69 t1_j1xa9b0 wrote

This is probably not the reason. As much as I’m aware, the red hair anesthetic resistance was tested discovered for inhalational anesthetics, which do not have the same mechanisms of action as local anesthetics.

The real answer to your question could probably better be answered by an attending anesthesiologist (I’m only an intern), but you’re asking hours vs days as if all nerve blocks are created equal. They are not. Some local anesthetics last longer than others and there is an element of proceduralist dependence (in the case of a few hours vs 24 hours like OP stated). What the other commenter was talking about (weeks) is almost certainly a steroid injection, which is intended to reduce inflammation around the nerve, which will indeed last weeks. A local anesthetic nerve block for a surgery will not.

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Q8DD33C7J8 t1_j1xau1o wrote

I know that's his red hair isn't a contributing factor in why his meds don't work.

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midge_rat t1_j1wy0hz wrote

that might be the answer!

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DeadlyInertia t1_j1yul8y wrote

Seems like this study uses desflurane, an inhaled anesthetic. Good study but nerve blocks are done using injectables

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midge_rat t1_j1yzfli wrote

The results have been replicated with Novocaine and lidocaine

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bbpr120 t1_j1x32ux wrote

when I was in for one of my (many...) knee surgeries the guy next to me was getting a nerve block for shoulder surgery. They turned off his arm and took him shortly before it was my turn under the knife.

I woke up to him screaming in agony as the nerve block had worn off already...

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