Document Detail

Heartworm migration toward right atrium following artificial pulmonary arterial embolism or injection of heartworm body fluid.
MedLine Citation:
PMID:  2385039     Owner:  NLM     Status:  MEDLINE    
Heartworms harboring in the pulmonary arteries migrated toward the right atrium following insertion of dead heartworms or heartworm-like silicone tubes, or intravenous injection of body fluid extract of a female heartworm. The migration occurred within 3 hr (early group) or 1 to 7 days (late group) after insertion of dead worms, 1 to 11 days after insertion of silicone tubes, and immediately after infusion of heartworm-body fluid. The cardiac output decreased to an unmeasurably low level, and the pulmonary arterial pressure was also reduced in the early group. Although the output decreased, the pulmonary arterial pressure and the total pulmonary resistance increased gradually in the late group. In dogs with heartworm migration, in which silicone tubes had been inserted, the changes in cardiopulmonary values were the same as those in dogs of the late group. In dogs to which the body fluid had been administered intravenously, the changes in cardiopulmonary values were well accord with those in the early group. The systemic blood pressure also fell immediately after the administration with the shock-like state. These results suggest that the death of a part of the heartworms may be closely associated with the migration of heartworms toward the right atrium through the pulmonary arterial embolism and/or shock-like reaction by heartworm body fluid.
H Kitagawa; Y Sasaki; K Ishihara; M Kawakami
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Nihon juigaku zasshi. The Japanese journal of veterinary science     Volume:  52     ISSN:  0021-5295     ISO Abbreviation:  Nippon Juigaku Zasshi     Publication Date:  1990 Jun 
Date Detail:
Created Date:  1990-09-18     Completed Date:  1990-09-18     Revised Date:  2011-07-25    
Medline Journal Info:
Nlm Unique ID:  0057113     Medline TA:  Nihon Juigaku Zasshi     Country:  JAPAN    
Other Details:
Languages:  eng     Pagination:  591-9     Citation Subset:  IM    
Laboratory of Internal Medicine, Faculty of Agriculture, Gifu University, Japan.
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MeSH Terms
Body Fluids
Dirofilaria / physiology*
Filarioidea / physiology*
Heart / parasitology*
Heart Atria / parasitology
Injections, Intra-Arterial / veterinary
Pulmonary Artery / parasitology*
Pulmonary Embolism / parasitology,  veterinary*

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

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