Document Detail

Intraoperative ultrasonography of the portal vein during attenuation of intrahepatic portocaval shunts in dogs.
MedLine Citation:
PMID:  12710771     Owner:  NLM     Status:  MEDLINE    
A method for intraoperative measurement of portal blood flow velocity with duplex Doppler ultrasonography in 7 dogs with congenital intrahepatic portosystemic shunts is described. The aims of the study were to determine whether intraoperative ultrasonography was an acceptable alternative to mesenteric portography in such dogs and to identify quantitative portal hemodynamic variables that might correlate with clinical outcome better than portal pressure does. Ultrasonographic measurements did not influence decision-making by the surgeon, who attenuated the shunt on the basis of appearance of the viscera and change in mean systemic arterial blood pressure. All dogs recovered without complications, and surgery was considered to be successful in all 7. Intraoperative B-mode ultrasonography provided real-time information about the anatomy of the shunt and the portal branches, suggesting that it may be a useful alternative to mesenteric portography. The time-averaged mean portal blood velocity ranged from 6.5 to 33.7 cm/s before shunt attenuation and from 5.0 to 9.5 cm/s after shunt attenuation. This narrow range of postligation velocities suggested that intraoperative ultrasonography might be an alternative to intraoperative portal pressure measurement.
Viktor Szatmári; Frederik J van Sluijs; Jan Rothuizen; George Voorhout
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of the American Veterinary Medical Association     Volume:  222     ISSN:  0003-1488     ISO Abbreviation:  J. Am. Vet. Med. Assoc.     Publication Date:  2003 Apr 
Date Detail:
Created Date:  2003-04-24     Completed Date:  2003-06-17     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  7503067     Medline TA:  J Am Vet Med Assoc     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1086-92, 1077     Citation Subset:  IM    
Division of Diagnostic Imaging, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 10, 3584 CM Utrecht, The Netherlands.
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MeSH Terms
Blood Flow Velocity / veterinary
Decision Making
Dog Diseases / surgery*,  ultrasonography
Intraoperative Period / veterinary
Portal System / abnormalities*,  physiology,  surgery,  ultrasonography
Portal Vein / abnormalities,  physiology,  surgery*,  ultrasonography*
Treatment Outcome
Ultrasonography, Doppler / methods,  veterinary

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