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A V Chzhao

Publications and source records attributed to A V Chzhao.

13 recordsLinked to original sources
PubMed2001

[Portal embolization (an experimental-morphological study)].

Results of experimental-morphological study of influence of unilobar portal embolization by biologic occlusive material RABROM on the liver of 6 laboratory animals are presented. It is shown that portal venous embolization leads to focal necrosis of parenchyma of embolized hepatic lobe, it atrophy and formation of portal cirrhosis. In non-embolized hepatic lobe the distinct signs of increased regeneration and hypertrophy of hepatocytes were revealed. RABROM didn't lead to damage and inflammatory changes of vascular wall that testifies to it biologic inertia. It is recommended to use the method of portal venous embolization for preparation of patients with low functional hepatic reserve for extensive resections.

Animals↗
PubMed1998

[Spiral computer tomography in diagnosis of hepatic diseases].

Spiral computer tomography (SCT) is a new method of computer tomography by which, in contrast to conventional CT, the information about absorptional capacity of tissues is obtained without omission of images which makes it possible to build MPR and 3D of a very high quality. 205 patients with diseases of hepatopancreatoduodenal area were examined, in 189 patients the diagnosis being verified. Optimal technique of intravenous bolus contrasting in SCT was developed. Using various time interval between the start of the scanning and the beginning of infusion of contrast media, it is possible to obtain primary image of the arteries (arterial phase of contrasting, time of delay 18-25 sec.), the picture of veins and the image of saturation of hepatic parenchyma--(venous return phase, time of delay 60-80 sec.), to reveal characteristics of contrasting of the liver masses during delay (8-15 min) phase. The largest quantity of masses are revealed in arterial phase of contrasting. Specific features of contrasting in hemangiomas and malignant tumors of the liver has been revealed. Hemangiomas absorb contrast medium already at the early phase as hypercontrasted lacunas in an outlying areas, at a late phase they are hyperdenced in relation to hepatic parenchyma. Primary and metastatic tumors of the liver accumulate contrast medium in an early phase along the whole area and quickly lose contrast medium during parenchymal phase. The method of contrast intensification enables evaluation of interrelation between tumor and vessels, to determine passage of hepatic arteries and branches of portal and hepatic veins, to visualise choledochal duct, to determine the distance between hepatic and tumor surface, and to produce these data as a view of multiplanar and three-dimensional image (reconstruction). The effectiveness of obtained reconstructions in planning of the extent of surgical intervention is demonstrated.

Contrast Media↗
PubMed1992

[The comprehensive assessment of the degree of severity of their condition in patients with mechanical jaundice].

The authors examined 42 patients with obstructive jaundice of various severity. Comparison of the findings of radiohepatography with intoxication values according to the medium-weight molecule test and the biochemical parameters revealed statistically significant differences of some quantitative indices depending of the severity of jaundice. The results of the study made it possible to recommend the use of the values of blood clearance, time of maximum accumulation of a radiopharmacological agent in the liver, hepatic and blood retention index, and the medium-weight molecule test for objective quantitative appraisal of the severity of obstructive jaundice. Study of the time course of changes of the above parameters showed that normalization of hepatic function in resolving jaundice begins only from the second week after decompression of the biliary tract, which must be borne in mind in choosing the optimal time for the operation.

Aged↗
PubMed1990

[Diagnostic value of determining plasma levels of middle molecule toxins in patients with mechanical jaundice].

On the basis of complex examination of 54 patients with obstructive jaundice, the authors show the diagnostic value of testing the level of middle-mass molecules for qualitative appraisal of the severity of the intoxication as well as for determination of the rational tactics in the management of patients with obstructive jaundice. With the use of the test for middle-mass molecules, the volume of nonoperative therapy and the time for the operative interventions will be determined more rationally, as the result of which the results of treatment of this severe disease will improve.

Adult↗
PubMed1990

[Surgical tactics in mechanical jaundice].

On the basis of complex examination and treatment of 167 patients with obstructive jaundice of various etiology, the authors suggest a differentiated approach to the choice of the volume, method, and duration of detoxification therapy as well as the time and volume of an operative intervention. The necessity of preoperative correction of cholestasis by nonoperative measures and instrumental methods of decompression of the biliary tract is substantiated. It is shown that intraarterial regional infusion therapy must be applied in patients whose condition is most serious.

Choledochostomy↗