Peer-reviewed veterinary case report
How anemia changes blood flow in Beagle dogs' abdominal vessels
By Koma, Lee M et al.·Published in American journal of veterinary research·2005·Department of Companion Animal Clinical Studies·View original on PubMed →
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Original publication title: Influence of normovolemic anemia on Doppler characteristics of the abdominal aorta and splanchnic vessels in Beagles.
- Species:
- dog
Plain-English summary
A group of 11 healthy Beagles underwent tests to see how their blood flow changed when they were made anemic (having low red blood cell levels). The tests showed that severe anemia caused their heart rates to increase significantly and affected blood flow in various arteries. Even after the anemia was treated, some changes in blood flow patterns persisted. This study helps us understand how anemia can impact circulation in dogs, which could be useful for veterinarians when diagnosing and treating similar conditions in pets.
People also search for: dog anemia symptoms · Beagle heart rate increase · treatment for dog anemia
Abstract
OBJECTIVE: To ultrasonographically evaluate hemodynamics in the abdominal aorta (AAo) and splanchnic vessels in dogs with experimentally induced normovolemic anemia. ANIMALS: 11 healthy Beagles. PROCEDURE: The AAo, cranial mesenteric artery (CMA), celiac artery (CA), hilar splenic artery (HSA), and main portal vein (MPV) were evaluated in conscious dogs immediately before and after experimental induction of severe normovolemic anemia (Hct, 16%) and during recovery from moderate and mild anemia (Hct, 26% and 34%, respectively). Peak systolic velocity (PSV) or peak velocity (PV), time-averaged mean velocity (TAVmean), pulsatility index (PI), resistive index (RI), blood flow, congestion index (CI), and heart rate (HR) were recorded. Results were compared for anemic and control states. RESULTS: Severe anemia caused significant increases in HR (25% to 70%), PSV (AAo, 45.8%; CMA, 56.1%; and CA, 41.9%), PV (MPV, 84.2%), and TAVmean, (AAo, 69.4%, CMA, 64.3%; CA, 29.7%; and MPV, 76.9%) and significant decreases in PI (AAo, 26.1%; HSA, 19.3%) and Cl (MPV, 45.2%). There was no significant change in PI of the CMA or CA, portal blood flow, or RI of any artery. Significantly higherTAVmean persisted in all vessels during moderate anemia, but higher PSV persisted only in the CMA; PI (CMA and CA) and RI (CA) decreased significantly, but portal blood flow increased significantly. Significant increase in TAVmean (AAo and CMA) persisted during mild anemia, and PI (AAo, CMA, and HSA) and RI (CMA) were significantly lower. CONCLUSIONS AND CLINICAL RELEVANCE: Doppler ultrasonography revealed hyperdynamic circulation in the AAo and splanchnic vessels in dogs with experimentally induced normovolemic anemia.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/15757114/