[Show abstract][Hide abstract] ABSTRACT: To explore the relation between heparanase (HPA) and nm23-H1 in hepatocellular carcinoma (HCC), and whether they could be used as valuable markers in predicting post-operative metastasis and recurrence of HCC.
Reverse transcription-polymerase chain reaction and immunohistochemistry (S-P method) were used to measure the expressions of HPA mRNA and nm23-H1 protein in primary tumor tissue and paracancerous tissue of 33 cases of HCC. Paracancerous tissues of 9 cases of benign liver tumor were used as normal controls. The results were analyzed in combination with the results of clinicopathological examination and follow-up.
The positive expression of HPA gene was significantly higher in primary tumor tissues of HCC (48.5%, 16/33) as compared to the paracancerous tissues of HCC and normal controls (3.03%, 1/33) (P < 0.01). HPA expression was not related with the size of tumor, envelope formation, AFP level, HBsAg state and cirrhosis of liver. The positive rates of HPA mRNA in the group with high tendency to metastasis or recurrence and in the group with metastasis or recurrence during the follow-up were significantly higher than those in the group with low tendency to metastasis or recurrence (62.5% vs 37.5%, P < 0.05) and in the group without metastasis or recurrence (78.6% vs 21.4%, P < 0.01). The poorly differentiated tumor and tumor of TNM stages III-IV had a higher positive rate of HPA gene expression than the well differentiated tumor and tumor of TNM stages I-II (66.7% vs 33.3%, P < 0.05). The positive expression rate of nm23-H1 protein in HCC tissue was significantly lower than that in corresponding non-cancerous or normal liver tissue (45.5, 72.7, 88.9%, P < 0.05). nm23-H1 expression was not related with the size of tumor, envelope formation, AFP level, HBsAg state, cirrhosis of liver, Edmondson grade, and TNM stage (P > 0.05). The positive rates of nm23-H1 in the group with high tendency to metastasis and recurrence and in patients with metastasis or recurrence during the follow-up were obviously higher than those in the group with low tendency to metastasis and recurrence (P = 0.018) and in the patients without metastasis and recurrence (P = 0.024); but no significant difference was found between HPA positive and negative groups (P = 0.082). According to the results of follow-up, the rate of accuracy in predicting metastasis of positive HPA, negative nm23-H1 and combination of positive HPA with negative nm23-H1 was 78.6% (11/14), 68.8% (11/16) and 88.9% (8/9), respectively.
Expression of HPA and/or nm23-H1 is related with metastasis and recurrence of HCC. Detection of the expression rate of HPA and nm23-H1 may help increase the accuracy in predicting post-operative metastasis and recurrence of HCC.
Preview · Article · Mar 2005 · World Journal of Gastroenterology
[Show abstract][Hide abstract] ABSTRACT: To explore the effect of Peng's binding pancreaticojejunotomy (PBPJ) in prevention of pancreaticojejunal anastomotic leakage.
From 1996 to 2001, 200 patients, 139 males and 61 females, aged 32 approximately 80, with carcinomas of head of pancreas, ampulla, bile duct, duodenal papilla, descending partof duodenum, gallbladder, and body of pancreas, chronic pancreatitis, polyp of lower segment of bile duct, and gastric carcinomas that invaded the head of pancreas or recurred after operation, lithiasis of pancreatic duct, and islet cell carcinoma, underwent Peng's binding pancreaticojejunotomy, devised to prevent pancreaticojejunal anastomotic leakage from the needle holes of stoma, interspace between jejunal mucosa and pancreas, high pressure of jejunum, high tension and blood circulation deficiency of pancreaticojejunal stoma, etc. The clinical data were collected and analyzed.
While the cut end of jejunum was sutured to the pancreatic remnant the needle only penetrated the jejunal mucosa without causing a needle hole on the surface of the stoma. After the remnant of pancreas was inserted into the jejunal cavity, a piece of cat gut was bound around the entire jejunal serous muscular sheath and the pancreatic remnant so as to make them stick to each other closely. No pancreatic leakage occurred among these 200 cases after operation.
The PBPJ procedure can definitively avoid anastomotic leakage following pancreatoduodenectomy.
No preview · Article · Jul 2004 · Zhonghua yi xue za zhi
[Show abstract][Hide abstract] ABSTRACT: To summarize the experience of surgical intervention for hepatocellular carcinoma with bile duct thrombi, and to evaluate the influence on prognosis.
From 1994 to 2002, 15 patients with hepatocellular carcinoma and bile duct thrombi who underwent surgical intervention were retrospectively analyzed. The operative procedures included hepatectomy with removal of bile duct thrombi (n=7), hepatectomy combined with extrahepatic bile duct resection (n=4), thrombectomy through choledochotomy (n=3), and piggyback orthotopic liver transplantation (n=1).
The 1- and 3-year survival rates were 73.3% and 40%, respectively. Two patients survived over 5 years. There were no significant differences in the survival rates between patients with and without obstructive jaundice (P>0.05). The survival rate of patients with portal vein invasion was significantly lower than for those without portal vein invasion (P<0.05).
Surgical intervention was effective for patients with hepatocellular carcinoma and bile duct thrombi. Operation for recurrent intrahepatic tumor can prolong the survival period. Liver transplantation is a new operative procedure worthy of investigation.
No preview · Article · May 2004 · Hepato-gastroenterology
[Show abstract][Hide abstract] ABSTRACT: To explore the role of extrahepatic control on blood flow of hepatic vein and inferior vena cava in hepatectomy, and observe its effect on minimizing hemorrhage.
From 2001 to April 2003, 33 patients who had liver tumors involving segment IV, VII, VIII or half liver underwent major hepatectomies that required exposure of the inferior vena cava and main trunks of hepatic veins, during which the major hepatic veins and inferior vena cava were isolated and taped to control blood flow when necessary.
In 33 attempts, 32 were successful and all tumors were resected successfully. The placement of occlusion tape was unsuccessful in 1 case. 7 cases did not need blood transfusion during operation. The amount of blood transfusion for other cases were form 0 to 1 600 ml. there was no operative mortality.
Appropriate control of main truck of hepatic vein and inferior vena cava is effective in reducing blood loss during hepatectomies. It is also very helpful for performing difficult hepatectomies.
No preview · Article · Apr 2004 · Zhonghua wai ke za zhi [Chinese journal of surgery]