No abstract available.
Hepatic Veins*

The study carried out on 58 patients (45 men and 13 women) from 4 to 53 years old with hepatic venous injuries who were operated in Viet Duc Hospital. The result showed that there were 4 common kinds of hepatic venous injuries. Among them, retrohepatic venous injuries commonly causes death due to acute and uncontrol blood loss. The methods to treat hepatic venous injuries tend to don’t use shunt because of disadvantages. The methods include early surgery, attach liver to the diaphragm to stop the bleeding, blood transfusion with high amount and rapid speed to raise blood pressure, liver resection according to injury, pining liver stalk, chocking antlers, in case of need pining inferior vena cava, deal with vein injury was the most common and effective method to reduce mortality rate of patients with hepatic venous injuries
Hepatic Veins ; Surgery

PURPOSE: Portal branching patterns (ramification) that differ from those previously described are occasionally encountered during liver surgery. We studied the portal vein branching patterns by performing 64 MDCT. METHODS: A total of 100 patients with normal liver underwent MDCT during arterial portography. Next, the 3 dimensional portograms were reconstructed and the portal branching patterns were assessed. RESULTS: In 80 (80%) of the 100 patients we examined, the right anterior portal vein bifurcated into the ventral and dorsal branches. Only 20 percent of the patients showed the classic pattern, that is, bifurcating into the right anterior superior (P8) and right anterior inferior branches (P5). The portal branches in segment 5 showed many variations in their origins and numbers. The portal branches in segment 7 originated from both the right anterior and posterior portal veins, and not just the right posterior portal vein. CONCLUSION: Instead of dividing the right liver into the superior and inferior segments, we proposed that the right liver can be divided into 3 segments, which are designated as the right anterior, middle and posterior segments. In the view of the vascular watershed, the division of the right anterior and posterior sections by using the right hepatic vein might be inaccurate.
Hepatic Veins ; Humans ; Liver ; Portal Vein ; Portography

168 healthy livers from lead patients were studied. The results have shown that 4 basic anatomical forms of the right liver and 6 basic anatomical forms of left liver have been found. 36.9% of cases can be dissected the left hepatic vein. This finding can be applied for the liver transplantation and heapatectomy and plastic reconstruction of hepatic veins.
Hepatectomy ; Hepatic Veins ; Surgery, Plastic ; Liver Transplantation

To study on 65 HBsAg positive mothers and 61 their newborns received differents dosages and types of hepatitis B vaccine at 0, 1, 2 months. HBeAg was detected in 25 (38.5%) mothers and all of them were HBV DNA positive. HBsAg and HBV DNA was detected in 19 (76%) and 23 (92%) respectively of the 25 cord blood from HBeAg positive mothers, while detected in 16 (40%) and 12 (30%) respectively of the 40 cord blood from HBeAg negative mothers. Testing at 6 months after completion of the vaccineation schedule, the failure risk (HBsAg positive) of vaccines for dosage of 2.5 g/ml is higher than others (5 g/ml and 10 g/ml). Hepatitis B vaccine with hepatitis B immune globulin or vaccine dosages of 5 and 10g alone may be recommended for high-risk neonates.
Hepatectomy ; Hepatic Veins ; Surgery, Plastic ; Liver Transplantation

OBJECTIVETo determine whether there are differences in both the right hepatic vein (RHV) morphology and the size of the angle between the inferior vena cava and the RHV in patients with membranous obstruction of the inferior vena cava (MOVC),in healthy individuals and in patients with cinhosis (HLC), in order to help guide development of an effective interventional treatment program.

METHODSConsecutive patients (n=248) were divided into the following three groups: group A (control; n=94), group B (MOVC patients; n=68), group C (HLC patients; n=86). The angle between the hepatic vein and inferior vena cava was measured and defined as the T value. The morphology of the RHV was classified as N, U, or I. The difference of the constituent ratio was compared among the three groups for the T value and the angle type.Measurement data was calculated as x ± s,and groups were compared using one-way ANOVA; count data was calculated as relative number, and groups were compared using the chi-square test.

RESULTSThe average T value of group B was significantly higher than that of group A (56.1 ± 13.7 vs. 49.3 ± 7.8, P=0.010) and of group C (vs. 51.5 ± 10.0, P < 0.001); the difference was statistically significant (F=8.750, P < 0.001), but there was no significant difference between the groups A and C.N-type proportion of B group was 48.5% (33/68), greater than that of group A(16.0%,15/94) and C (16.3%, 14/86), x² = 20.1, x² =18.6.U-type proportion of B group was 11.8% (8/68), smaller than that of groups A (28.7%,27/94) and C (37.2%, 32/86), 2 2 = 6.70, x² =12.8, and the differences were statistically significant (P < 0.01). For groups A and C, the N and U types were not significantly different.

CONCLUSIONThe angle between the RHV and the inferior vena cava in MOVC patients is morphologically different from that in healthy humans, with the angle value in MOVC patients being slightly larger. However, this difference is irrelevant to cirrhosis.

BACKGROUND/AIMS: The fetus liver was characterized by its relatively larger left lobe than right lobe. So far there are no available morphometrical data and shape of the late-stage of human fetal liver, including identification of the intrahepatic vessels, which is little bit different from adult liver. METHODS: Among usual anatomic cadavers in department of anatomy of Sapporo medical university we choose normal- looking 12 late-stage human and 10 adult livers. At first, we measured the thickness and height and width of the livers at each designated sites and than underwent dissection for measurement of major intrahepatic vessels. In fetus, the upward protrusion of S8 was not evident, while S4 provided the greatest thickness of the liver. The fetus revealed an ellipsoid or oval shaped visceral surface and large S3, while the adult liver was triangular. The Arantius duct was almost always narrower than each of the 3 major hepatic veins, and it was often narrower than the umbilical vein. CONCLUSION: Both S2 and S6 seemed to enlarge during the postnatal growth, although there seemed to be great individual variations in the process of the growth. In the late stage fetus, three major hepatic veins seemed to play a great role for the venous return to the heart from the liver, rather then the Arantius duct.
Adult ; Cadaver ; Fetus ; Heart ; Hepatic Veins ; Humans* ; Liver* ; Umbilical Veins

PURPOSE: To determine the effects of blood vessels on the size and shape of microwave coagulation. MATERIALS AND METHODS: Microwave coagulation was performed with 60 W output and 60 second duration. In the first experiment five exvivo porcine livers were used to determine the size of the coagulation area and its reproducibility. The second experiment involved the used of two in-vivo porcine livers to determine how adjacent vessels affect the size and shape of coagulation. RESULTS: The result of the first experiment was that the maximum mean diameter of lesions was 1.4 cm +/- 0.1 , reproducible in the range of 1.3 c m -1 .5 cm. In the second experiment, maximum mean diameter was found to be 1.5cm +/- 0.1, reproducible in the range of 1.3 cm - 1.7cm, and the size and shape of the lesion was affected by nearby blood vessels. The shape factor of the lesion, defined as roundness of sphere, was 0.8, but the r a n g e ( 0 . 5 8 -0.92) was wide due to the effect of vascular cooling. This was more prominent in the portal vein than in the hepatic vein, and the minimum diameter of the portal vein which deformed the lesion by more than 1 mm was 0.1 mm. CONCLUSION: Microwave coagulation gives a well-defined lesion, the size of which can be reproduced, but size variation and nonuniformity can be caused by nearby blood vessels.
Animals ; Blood Vessels* ; Hepatic Veins ; Liver ; Microwaves* ; Portal Vein

PURPOSE: To determine the effects of blood vessels on the size and shape of microwave coagulation. MATERIALS AND METHODS: Microwave coagulation was performed with 60 W output and 60 second duration. In the first experiment five exvivo porcine livers were used to determine the size of the coagulation area and its reproducibility. The second experiment involved the used of two in-vivo porcine livers to determine how adjacent vessels affect the size and shape of coagulation. RESULTS: The result of the first experiment was that the maximum mean diameter of lesions was 1.4 cm +/- 0.1 , reproducible in the range of 1.3 c m -1 .5 cm. In the second experiment, maximum mean diameter was found to be 1.5cm +/- 0.1, reproducible in the range of 1.3 cm - 1.7cm, and the size and shape of the lesion was affected by nearby blood vessels. The shape factor of the lesion, defined as roundness of sphere, was 0.8, but the r a n g e ( 0 . 5 8 -0.92) was wide due to the effect of vascular cooling. This was more prominent in the portal vein than in the hepatic vein, and the minimum diameter of the portal vein which deformed the lesion by more than 1 mm was 0.1 mm. CONCLUSION: Microwave coagulation gives a well-defined lesion, the size of which can be reproduced, but size variation and nonuniformity can be caused by nearby blood vessels.
Animals ; Blood Vessels* ; Hepatic Veins ; Liver ; Microwaves* ; Portal Vein

Hepatectomy ; methods ; Hepatic Veins ; surgery ; Humans ; Liver ; surgery