Hemodynamic evaluation of the right portal vein in healthy dogs of different body weights
نویسندگان
چکیده
BACKGROUND Doppler ultrasonography is an important tool for evaluating hepatic portal hemodynamics. However, no study in dogs of different body weights, in the range encountered in routine clinical veterinary practice, has been reported. It can be difficult to obtain an ideal insonation angle when evaluating the main portal vein, so evaluation of the right portal vein branch has been described in humans as an alternative. The aim of this study was to analyze, through Doppler ultrasonography, the hemodynamics in the right portal vein branch in dogs of different body weights. METHODS Thirty normal dogs were divided in three groups by weight, in order to establish normal values for mean velocity, flow volume and portal congestion index of the right portal vein branch by means of Doppler ultrasonography. RESULTS In all dogs ideal insonation angles were obtained for the right portal vein branch. The average velocity was similar in the three groups, but the portal congestion index and the flow volume differed, showing that the weight of the dog can influence these values. CONCLUSION Doppler ultrasonography for the evaluation of flow in the right branch of the portal vein could be a viable alternative, or complement, to examining the main vessel segment. This is especially so in those animals in which an ideal insonation angle for examination of the main portal vein is hard to obtain. In addition, the weight of the dog must be considered for the correct evaluation of the portal system hemodynamics, particularly for portal blood flow and the congestion index.
منابع مشابه
Sonographic Evaluation of Liver Hemodynamic Indices in Overweight and Obese Dogs
BACKGROUND Hepatic circulatory disturbances have been associated with obesity and fatty liver in humans. In the veterinary literature, however, there is limited information regarding the effects of different body condition scores (BCS) on liver hemodynamic indices in dogs. OBJECTIVES To investigate the influence of BCS on liver hemodynamic indices. ANIMALS Fifty-three client-owned dogs of v...
متن کاملIntrahepatic ramifications of the portal vein in the horse
The ramifications of the portal vein in the liver of horses were studied by using corrosion casting and gross dissection. The portal vein in the horse supplies the hepatic lobes by six major branches. The right lobe is supplied by three main branches, namely the dorsal diaphragmatic, the right caudodorsal and the right intermediate branches. The left branch supplies the left lateral and medial ...
متن کاملA Survey Parameters of Hepatic Vessels in Healthy Cats by Color Doppler Ultrasonography
Objective- This survey was accomplished to describe the hepatic artery and portal vein indices in healthy domestic cats by color Doppler ultrasonography technique. Design- Retrospective experimental study. Animals- Twenty domestic short hair (DSH) cats (10 males and 10 females). Procedures- Doppler indices of ...
متن کاملNormal Color and Pulsed-Waved Doppler Ultrasonography of Femoral and Axillary Arteries in Dogs
Objective- Obtaining the normal images ofcolor doppler and estimation ofblood flow velocity parametersof femoral and axillary arteries in dog.Design- Descriptive studyAnimals- 7 healthy adult mixed-breed dogs, weighing 14.3 ± 2.8 kg (mean ± SD).Proceudure- Left and right femoral and axillary arteries of hind and forelimbs were evaluated. Colorand spectral doppler images ofthe each artery were o...
متن کاملFaecal fat and body weight changes following Roux-en-Y and jejunal loop interposition reconstructive technique in total gastrectomized dogs
Total gastrectomy is one of the most common operative procedures for gastric malignancy, but therecommended method of gastrointestinal reconstruction after gastrectomy is still controversial. Significantweight loss has been noted by many observers following gastrectomy. The Roux-en-Y method is the mostfrequent reconstructive technique performed after gastrectomy. This technique is easy to perfo...
متن کامل