Document Detail

The development of a novel percutaneous lung biopsy procedure for use on feedlot steers.
MedLine Citation:
PMID:  22468022     Owner:  NLM     Status:  MEDLINE    
The purpose of this study was to develop a percutaneous lung biopsy technique to be used on steers in a commercial feedlot setting. Thirty-four crossbred steer and heifer calves from a commercial feedlot in southern Alberta were used in this study. The calves originated from the auction market and all were chronically affected with bovine respiratory disease (BRD). A technique was developed to obtain a lung sample from the right cranioventral lung lobe, intercostal space (ICS) 2, using a manual or an automatic biopsy instrument with a 14- or 12-gauge (ga) biopsy needle. Overall, lung parenchyma was successfully harvested in 55.9% of experimental animals and in 55.0% of lung biopsy trials. Compared with postmortem diagnosis, the biopsy resulted in the same pathologic diagnosis for 75% of biopsy samples when evaluated using standardized criteria by the same veterinary pathologist. The success rate was 61.5% and 42.9% in a hospital or field setting, respectively. With an automatic instrument, lung was recovered from 57.9% and 37.5% of samples obtained using a 12- or 14-ga biopsy needle, respectively. One experimental animal or 2.9% of the total had fatal complications from the procedure. In a commercial feedlot setting, the procedure took 20 min for each animal. Percutaneous lung biopsy of the right cranioventral lung lobe may be a viable technique when used on feedlot steers affected with chronic pneumonia. These findings suggest that using an automatic instrument with either a 14- or 12-ga biopsy needle may yield lung samples that are suitable for histopathological evaluation. However, this technique needs to be further evaluated in a field setting.
Brandy A Burgess; Steve H Hendrick; Colleen M Pollock; Sameeh M Abutarbush; Amanda Vogstad; G Kee Jim; Calvin W Booker
Publication Detail:
Type:  Evaluation Studies; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Canadian journal of veterinary research = Revue canadienne de recherche vétérinaire     Volume:  75     ISSN:  0830-9000     ISO Abbreviation:  Can. J. Vet. Res.     Publication Date:  2011 Oct 
Date Detail:
Created Date:  2012-04-02     Completed Date:  2012-07-26     Revised Date:  2013-06-26    
Medline Journal Info:
Nlm Unique ID:  8607793     Medline TA:  Can J Vet Res     Country:  Canada    
Other Details:
Languages:  eng     Pagination:  254-60     Citation Subset:  IM    
Department of Large Animal Clinical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, Saskatchewan.
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MeSH Terms
Biopsy, Needle / methods,  veterinary
Cattle Diseases / pathology*
Lung Diseases / diagnosis,  pathology,  veterinary*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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