RFA needle sizing for local anesthesia (without sedation)?

[BobBarker]

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Yep, nothing official. Probably just a sales job.

 

[Taus]

Yep, nothing official. Probably just a sales job.

I recently got a new mdt machine, been working with their reps and regional manager. Havent heard that.

Perhaps the 18g, 90 degrees for >90 seconds gives venom-like lesion (for 1/3 the cost per needle).

Nonetheless…. My partners and I are very happy with the machine thus far.

 

[cowboydoc]

I think that’s an excellent article for 2014 but doesn’t MDT have something about their system that is special that causes it to have the same lesion size as Venom?

I recently did trials on several machines comparing lesions in chicken breast. MDT rep had made a similar claim to me. Their standard lesion was a bit larger than the same sized Stryker (in non-venom configuration) or the Abbott, but definitely not the same size as the venom. They haven’t defied the laws of physics.

 

[bedrock]

What do you all think about this? This is why I've used 85 degrees for years.

This is straight from the SIS guideline manual (2nd edition) and is why I've used 85 degrees for my career. But like some of this book, maybe this is also outdated? I do wonder about 90 degrees, particularly with newer RF equipment compared to whatever was available when the guidelines were written.

 

[lobelsteve]

What do you all think about this? This is why I've used 85 degrees for years.
View attachment 387845
This is straight from the SIS guideline manual (2nd edition) and is why I've used 85 degrees for my career. But like some of this book, maybe this is also outdated? I do wonder about 90 degrees, particularly with newer RF equipment compared to whatever was available when the guidelines were written.

 

[MD87]

What do you all think about this? This is why I've used 85 degrees for years.
View attachment 387845
This is straight from the SIS guideline manual (2nd edition) and is why I've used 85 degrees for my career. But like some of this book, maybe this is also outdated? I do wonder about 90 degrees, particularly with newer RF equipment compared to whatever was available when the guidelines were written.

Notice there is no citation for "but risks cavitating the surround tissues..." In theory, it makes sense, but other articles refute it. I think this is just outdated.

 

[bedrock]

Notice there is no citation for "but risks cavitating the surround tissues..." In theory, it makes sense, but other articles refute it. I think this is just outdated.

you're probably right. A number of outdated things in the 2nd edition SIS manual