Hepatectomy ; methods ; Humans ; Liver ; blood supply

No abstract available.
Human ; Liver/*blood supply/ultrasonography ; Liver Cirrhosis/*pathology ; Microcirculation/ultrasonography

Contrast Media ; Humans ; Imaging, Three-Dimensional ; Liver Neoplasms ; blood supply

No abstract available.
Hemangioma/*blood supply ; Hepatic Artery/radiography ; Humans ; *Liver Circulation ; Liver Neoplasms/*blood supply ; Male ; Middle Aged ; Portal Vein/radiography

Hepatocellular carcinoma (HCC) remains one of the major public health problems throughout the world. Although originally associated with tumorigenic processes, liver angiogenesis has also been observed in the context of different liver inflammatory, fibrotic, and ischemic conditions. Here we investigate the fractal dimension as a quantitator of non-Euclidean two-dimensional vascular geometry in a series of paired specimens of primary HCC and surrounding non-tumoral tissue, and discuss why this parameter might provide additional information regarding cancer behavior. The application of fractal geometry to the measurement of liver vascularity and the availability of a computer-aided quantitative method can eliminate errors in visual interpretation, and make it possible to obtain closer-to-reality numerals that are compulsory for any measurement process.
Animals ; Biomarkers ; Biomarkers, Tumor ; Biomechanical Phenomena ; Carcinoma, Hepatocellular ; blood supply ; pathology ; Humans ; Liver ; blood supply ; Liver Neoplasms ; blood supply ; pathology ; Neovascularization, Pathologic ; pathology

OBJECTIVETo study the clinical value of total hemihepatic vascular exclusion (THHVE) in liver resection for patients with hepatocellular carcinoma (HCC) and impaired liver function.

METHODSThe data of 70 patients who underwent liver resection for HCC with impaired liver function between January 2009 and October 2011 were analyzed retrospectively. THHVE was applied in 38 patients (THHVE group), Pringle maneuver in 25 patients (Pringle group) and no vascular occlusion in 7 patients. In the THHVE group, 36 patients were male, 2 were female, average age was (54 ± 9) years. And in Pringle group, 23 patients were male, 2 were female, average age was (53 ± 10) years. Total intraoperative blood loss, blood transfusion rate, clamping time, postoperative complication rate, postoperative hospital stay and postoperative liver function were compared between the THHVE and Pringle group.

RESULTSTotal blood loss ((317 ± 186) ml vs. (506 ± 274) ml, t = -3.025, P = 0.004) and transfusion rate (10.5% vs. 32.0%, χ(2) = 4.509, P = 0.034) were significantly lower in the THHVE group than in the Pringle group. Although the clamping time was longer ((21 ± 5) minutes vs. (17 ± 5) minutes, t = 3.209, P = 0.002), the total bilirubin levels on postoperative day 3 and 7 and ALT levels on postoperative day 1, 3, 7 were significantly lower in the THHVE group than in the Pringle group, and the pre-albumin level on postoperative day 7 was higher in the THHVE group than in the Pringle group. Total complication rate (26.3% vs. 52.0%, χ(2) = 4.291, P = 0.038) and major complication rate (7.9% vs. 28.0%, χ(2) = 4.565, P = 0.033) were lower in the THHVE group than in the Pringle group. And postoperative hospital stay duration was shorter in the THHVE group than in the Pringle group ((14.0 ± 2.6) d vs. (16.4 ± 4.0) d, t = -2.625, P = 0.012).

CONCLUSIONSTHHVE is a safe and effective technique in liver resection for patients with HCC and impaired liver function. It is associated with less blood loss, lower transfusion requirements, better postoperative liver function recovery, lower postoperative complication rate and shorter postoperative hospital stay.

Adult ; Aged ; Carcinoma, Hepatocellular ; blood supply ; surgery ; Female ; Hepatectomy ; methods ; Humans ; Liver ; blood supply ; physiopathology ; Liver Neoplasms ; blood supply ; surgery ; Male ; Middle Aged ; Retrospective Studies

OBJECTIVETo investigate the influence of myocardial inhibition on injury to liver, kidney and intestine and blood perfusion at early stage in rat with severe burn.

METHODSThirty-two healthy male Wistar rats were enrolled in the study and randomly divided into sham scald, propranolol, scald control and scald + propranolol groups, with 8 rats in each group. After intraperitoneal injection of 10 g/L pentobarbital sodium for anesthesia, rats of the former two groups were sham scalded in a water bath of 37 degrees C for 18 s, while the latter two groups were inflicted with 30% TBSA full-thickness scald in a 97 degrees C water bath for 18 s. Rats were resuscitated with Ringer's lactate solution (4 mL x kg(-1) x 1% TBSA(-1), i. p.) following the Parkland formula 30 mins after the injury. At the same time, rats in propranolol and scald + propranolol groups received propranolol 0.75 mg/kg intravenously. After 6 hours, parameters of myocardiac mechanics (SBP, DBP, MAP, LVSP, LVEDP, +/- dp/dt max) were recorded by the multiple channel physiological signal collecting and processing system; blood flow of liver, kidney and intestine were detected with the laser doppler flowmetry; the serum contents of cTnI, TBA, beta2-MG and DAO were determined for reflecting injuries to the heart, liver, kidney and intestine, respectively.

RESULTSMyocardiac mechanics parameters, with the exception of LVEDP, were decreased in propranolol group as compared with those in sham group (P <.05). All myocardiac mechanics parameters in burn control group were lower than those in sham group and higher than those in burn + propranolol group (P < 0.05). Blood flow of organs showed similar changes in above-mentioned 3 groups (P < 0.05). Organ damages as shown in burn control group [cTnI (4.86 +/- 0.29) microg/L, TBA (83.6 +/- 18.2) micromol/L, beta2-MG (2.75 +/- 0.19) mg/L, DAO (1.45 +/- 0.09) x 10(3) U/L] were more serious than those in sham control group [cTnI (1.73 +/- 0.09) microg/L, TBA (24.5 +/- 2.4) micromol/L, beta2-MG (1.15 +/- 0.18) mg/L, DAO (0.87 +/- 0.13) x 10(3) U/L], and less serious than those in scald + propranolol group [cTnI 5.95 +/- 0.42 microg/L, TBA 125.8 +/- 21.3 micromol/L, beta2-MG 3.25 +/- 0.17 mg/L, DAO (1.83 +/- 0.13) x 10(3) U/L] (P < 0.05).

CONCLUSIONSPropranolol can aggravate injury to the liver, kidney and intestine at early stage in rat with severe burn, suggesting that "shock heart" may be one of initial factors in lowering blood flow to the organs, thus inducing injury to them.

Animals ; Blood Pressure ; Burns ; metabolism ; physiopathology ; Intestines ; blood supply ; Kidney ; blood supply ; Liver ; blood supply ; Male ; Myocardium ; metabolism ; Propranolol ; adverse effects ; Rats ; Rats, Wistar ; Shock

Carcinoma, Hepatocellular ; blood ; blood supply ; Endothelin-1 ; blood ; Female ; Humans ; Liver Neoplasms ; blood ; blood supply ; Male ; Neovascularization, Pathologic ; metabolism ; Nitric Oxide ; blood ; Vascular Endothelial Growth Factors ; blood

Carcinoma, Hepatocellular ; blood supply ; therapy ; Chemoembolization, Therapeutic ; Humans ; Liver Neoplasms ; blood supply ; therapy ; Tomography, X-Ray Computed

OBJECTIVETo evaluate the effects of selective hepatic vascular exclusion (SHVE) on prevention of serious hemorrhage and air embolism during hepatectomy and on the liver function after operation.

METHODSFrom January 2004 to March 2007, 29 huge hepatic tumors were resected in our department. Both SHVE and Pringle maneuver were used to control the blood loss during hepatectomy. They were divided into two groups: SHVE group (15 cases) and Pringle group (14 cases). Data regarding the intraoperative and postoperative courses of the patients were analyzed.

RESULTSThere was no significant difference between the two groups regarding the age, sex, tumor size, cirrhosis, HbsAg positive rate and operating time (P > 0.05). Intraoperative blood loss was reduced significantly in the SHVE group (P < 0.05). The serum prealbumin levels on the postoperative day 1, 3 and 7 in SHVE group were significantly higher than those in the Pringle group (P < 0.05). The serum ALT value in SHVE group was significantly lower than that in the Pringle group on postoperative day 1, 3 and 7. The mean drainage volume in SHVE group was significantly less than that in the Pringle group on postoperative day 1 and 2. Liver failure occurred in two cases of the Pringle group, while no one in the SHVE group. Rupture of hepatic vein with massive blood loss occurred in 3 cases and air embolism in one case of the Pringle group, but did not occur in any case of the SHVE group.

CONCLUSIONWhen the selective exclusion of hepatic outflow and inflow is applied in hepatectomy, the resection rate of huge hepatic tumors and operative tolerance of hepatectomy are improved. It is a safe and rational operation type, and provides an optimal choice for hepatectomy.

Adolescent ; Adult ; Aged ; Alanine Transaminase ; blood ; Bile Duct Neoplasms ; blood ; blood supply ; surgery ; Bile Ducts, Intrahepatic ; Blood Loss, Surgical ; Carcinoma, Hepatocellular ; blood ; blood supply ; surgery ; Cholangiocarcinoma ; blood ; blood supply ; surgery ; Female ; Hepatectomy ; methods ; Hepatic Veins ; surgery ; Humans ; Intraoperative Care ; Liver ; blood supply ; surgery ; Liver Neoplasms ; blood ; blood supply ; surgery ; Male ; Middle Aged ; Prealbumin ; metabolism ; Young Adult