WHAT DO YOU SUGGEST ?

Mike mmackinnon at cox.net
Fri Sep 1 00:50:10 BST 2006


hey

Im not saying the LMA is bad. Im saying its not as good as the ILMA. As the 
question was "what is the best" the answer is ILMA.

with all due respect, anecdotes are NOT evidence.

As for my literature search, i included all the cases i found in regards to 
aspiration risk and the LMA. Millers anesthesia as well as Rosens Emergency 
medicine and Ron Walls book INCLUDING every airway class taught in the 
country (i teach a few of them) clearly, and i do mean clearly, state the 
LMA is a choice of last resort and an ILMA is superior. The research also 
backs this up.

The fact is the evidence isnt conflicting. The perpondeance of evidence 
suggests one thing, an LMA (or any superglottic device) is only better than 
Masking a patient. All of these devices risk aspiration. The ILMA does not 
when used properly by passing an ETT.

I agree with you that an LMA is absolutely better than nothing, but it is 
not the "best option" which is what the poster had asked for.

m
----- Original Message ----- 
From: <HAXScott at aol.com>
To: <trauma-list at trauma.org>
Sent: Thursday, August 31, 2006 4:35 PM
Subject: Re: WHAT DO YOU SUGGEST ?


> Further, a quick review of the literature would yield uncommon but very 
> real
> problems associated with the Combitube, including multiple cases of
> esophageal rupture. I can share multiple anecdotes of the LMA being used 
> successfully
> as a rescue airway after failed intubation. In the past year at  least two
> adult patient have arrived in our TRU after failed intubation by other
> hospitals and were successfully ventilated and oxygenated without 
> substantial
> aspiration.
>
> In my own experience, Combitubes are used quite commonly by our ground EMS
> teams, and as a primary airway by some EMT-B and EMT-I level providers, 
> and we
> covert a number of Combitube placements to tracheal tube. Conversion to 
> ETT
> is  much easier with the LMA than with the Combitube. I have had success
> (though the  rate in the literature is low, about 50%) with converting LMA 
> to ETT
> simply by  intubating the trachea with a bougie via the LMA and advancing 
> an ETT
> over the  bougie once the LMA was removed... and what of our children? 
> There
> is no  pediatric version of the Combitube. The LMA has been used 
> world-over as
> a rescue  device for pediatric failed airway, including children with 
> major
> craniofacial  anomalies.
>
> Mr. MacKinnon, I'm glad to see you can conduct a literature search and
> include only those reviews, that which support your belief. The truth and 
> reality,
> back down here with the rest of us, about the LMA and it's use as a 
> rescue
> airway, is that it's NOT nearly as bad of a device as you would paint it, 
> and
> that the risk of aspiration, is greatly exaggerated by detractors of the
> device such as yourself.
>
> I'm truly very sorry to inform you, that the LMA has proven it's utility 
> as
> a rescue device in hospitals and in the field the world over. While
> admittably,  the available evidence may be conflicting, we are at the very 
> least assured
> that  aspiration with the LMA is rare, as proven by large trials in 
> important
> and  unbiased efforts by a number of investigators, and there is 
> absolutely
> no  question that it's proven itself.
>
> My hat is off to Archie Brain.
>
>
>
>
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