[Dysphagia] Silent aspiration

[nprw at xmission.com (Lynne)]

Another abstract:

http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=11824392&itool=iconabstr&query_hl=10 
<http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=11824392&itool=iconabstr&query_hl=10>

Dysphagia. 2002 Winter;17(1):40-9. Related Articles, Links 

Detection of swallowing sounds: methodology revisited.

Cichero JA, Murdoch BE.

Department of Speech Pathology and Audiology, University of Queensland, 
Brisbane, Australia

Cervical auscultation is in the process of gaining clinical credibility. 
In order for it to be accepted by the clinical community, the procedure 
and equipment used must first be standardized. Takahashi et al. 
[Dysphagia 9:54-62, 1994] attempted to provide benchmark methodology for 
administering cervical auscultation. They provided information about the 
acoustic detector unit best suited to picking up swallowing sounds and 
the best cervical site to place it. The current investigation provides 
contrasting results to Takahashi et al. with respect to the best type of 
acoustic detector unit to use for detecting swallowing sounds. Our study 
advocates an electret microphone as opposed to an accelerometer for 
recording swallowing sounds. However, we agree on the optimal placement 
site. We conclude that cervical auscultation is within reach of the 
average dysphagia clinic.


Paula leslie wrote:

>I am curious about how exactly CA allows one to detect "silent aspiration" 
>when, to my knowledge, there is no evidence that shows aspiration (silent or 
>otherwise) linked to any sound made before, during or after swallowing.  We 
>need videofluoroscopy or laryngoscopy images ie direct visualisation done on 
>the same swallow not just the same patient at a different time.  Anything else 
>is just presumption of a link.  People do talk of wet breath sounds but again 
>there is no evidence of what exactly this is.
>
>Features such as coughing, wet voice, stridor etc do not need CA to be 
>detected.
>
>People may have such data from simultaneous swallow studies, ie CA AND VF/LSE 
>done at the same time.  If so it would be very useful to get them into the 
>public domain to increase the evidence base on this topic.
>
>Paula
>
>
>
>
>
>  
>
>>===== Original Message From Kimberley ODonnell 
>>    
>>
><OdonneK@doh.health.nsw.gov.au> =====
>  
>
>>I agree that cervical auscultation is extremely useful in detecting
>>silent aspiration in many but not all people.   Wouldn't be without it.
>>Kim
>>
>>Kimberley O'Donnell
>>Speech Pathologist - BAppSc MSPAA CPSP
>>Royal Rehab. Centre Sydney
>>ph:(02) 9808 9210 or (02) 9807 1144 - pager 48
>>59 Charles Street   RYDE   NSW 2112
>>
>>    
>>
>>>>Pat Buen <patbuen@telus.net> 10/11/2005 2:56:15 pm >>>
>>>>        
>>>>
>>As Debbie states, however my last bedside test (b/4 VFSS if needed)
>>includes
>>cervical auscultation and a good assessment of  lung status.
>>Pat
>>----- Original Message -----
>>From: <LCDM11@aol.com>
>>To: <tervomm@yahoo.com>; <dysphagia@b9.com>
>>Sent: Wednesday, November 09, 2005 7:38 PM
>>Subject: Re: [Dysphagia] Silent aspiration
>>
>>
>>    
>>
>>>It's SILENT aspiration. It can't be determined at bedside. You may
>>>      
>>>
>>have
>>    
>>
>>>reason to suspect it, but it CAN NOT be determined by a clinical
>>>      
>>>
>>evaluation.
>>    
>>
>>>Debbie
>>>_______________________________________________
>>>Dysphagia mailing list
>>>Dysphagia@b9.com
>>>http://lists.b9.com/mailman/listinfo/dysphagia
>>>      
>>>
>
>_______________________________________________
>Dysphagia mailing list
>Dysphagia@b9.com
>http://lists.b9.com/mailman/listinfo/dysphagia
>
>  
>