AIM: In the present study, the characteristics of PEI-RFA treatment were further elucidated by analyzing the relationship between the volume of coagulated necrosis and the energy requirement for ablation or the amount...AIM: In the present study, the characteristics of PEI-RFA treatment were further elucidated by analyzing the relationship between the volume of coagulated necrosis and the energy requirement for ablation or the amount of ethanol injected into HCC.METHODS: The volume of coagulated necrosis, total energy requirement and energy requirement for coagulation of per unit volume were examined in the groups of PEI-RFA and RFA alone using the Cool-tip RF system.RESULTS: The results showed that the volume of coagulated necrosis induced was significantly larger in PEI-RFA group than in routine RFA group, when the total energy administered was comparable in both groups.In PEI-RFA, enlargement of coagulated necrosis was admitted in 3 dimensions and the amount of energy requirement per unit volume of coagulated necrosis was negatively correlated with the amount of ethanol injected into HCC.CONCLUSION: These results suggest that, compared to RFA alone, PEI-RFA enables to induce comparable coagulated necrosis with smaller energy requirement, and that PEI-RFA is likely to be less invasive than RFA alone irrespective of inducing enhanced coagulated necrosis.Thus, simple prior injection of ethanol may make RFA treatment more effective and less invasive for the treatment of patients with HCC.展开更多
BACKGROUND: Hepatocellular carcinoma (HCC) is one of the most common malignant tumors in the world and ranks the third most common cause of cancer-related death. Surgical resection, liver transplantation and percutane...BACKGROUND: Hepatocellular carcinoma (HCC) is one of the most common malignant tumors in the world and ranks the third most common cause of cancer-related death. Surgical resection, liver transplantation and percutaneous ablation are generally considered the only curative treatment for early stage HCC. Besides the limitations of insufficient organ donors and a long waiting time for liver transplantation, however, resection is applied only to patients with good hepatic reserve and localized tumors, with a resectability of 30%. DATA SOURCES: Local ablation therapy, which is minimally invasive but contributes to the significant improvement of survival in patients with unresectable tumor, hasbeen widely used in treating small HCC. Among the techniques of local therapy, percutaneous ethanol injection (PEI) with a complete response in 80% of HCCs less than 3 cm has been accepted as an alternative to surgery in patients with small HCC. Moreover, percutaneous hepatic quantified ethanol injection (PHQEI) or PEI according to the standard criteria has been confirmed to benefit patients with HCC, especially when quantified ethanol is given at a short interval (QESI, the interval was 2-3 days). RESULT: Several limitations related to local percutaneous methods may result in incomplete therapeutic effect in case of larger HCC nodules (>3 cm). CONCLUSION: The combined use of different methods according to the clinical status of patients or tumors may be essential to the effective treatment of HCC.展开更多
Objective： To evaluate the effect of intraperitoneal chemotherapy or in combination with other therapies in patients with advanced primary liver cancer. Methods： 72 patients with advanced primary liver cancer with n...Objective： To evaluate the effect of intraperitoneal chemotherapy or in combination with other therapies in patients with advanced primary liver cancer. Methods： 72 patients with advanced primary liver cancer with no indication for surgery received intraperitoneal chemotherapy in combination with other therapies including transcatheter arterial chemoembolization （TACE）, radiofrequency catheter ablation （RFA）, percutaneous ethanol injection therapy （PELT） and radiotherapy. Of them, 29 cases were complicated with hilar or retroperitoneal multiple lymph node metastases, 14 with portal vein embolus, 15 with intrapedtoneal and diaphragmatic metastases, 6 with chylous ascites, one with cancerous ascites, and 7 with suspected cancerous ascites （referring to large amounts of ascites without hypoproteinemia while exfoliative cytology of the ascites was positive）. The mean maximum tumor size was 8.2 cm in diameter. Liver function at the initial treatment was Child A in 53 cases, and Child B in 19 cases. I ntrapedtoneal chemotherapy was performed in all these patients. The intraperitoneal chemotherapy protocols included： 5-FU 0.5-0.75 g/d for 10-15 consecutive days, with a total dosage of 5-12.5 g, and at the last day of chemotherapy 10 mg mitomycin （MMC） or 100 mg carboplatin was injected. For 7 cases of cholangiocarcinoma, Gemzar 800-1000 mg was administered additionally. A majority of all these patients received another one or two therapy methods followed by intraperitoneal chemotherapy. TACE was performed in the patients with multiple tumors or nodule more than 5 cm in diameter in the liver, RFA or PElT with nodule fewer than 4 in number and 5 cm or less than 5 cm in diameter and radiotherapy, only for metastases, with metastatic lymph nodes, localized metastasis within the abdominal cavity or portal vein embolus. Interval time between two methods was one month or so. Two months after the sequential therapy, repeated treatment would be given if general medical condition and liver function were perfect at that time. Results： The median survival time of the group was 13.97 ± 6.27 months. The 1- and 2-year survival rates were 59.7% and 30.6% respectively. The mean survival time of the patients with liver function Child A was 15.91 ± 5.49 months, and that of the patients with Child B was 8.55 ± 5.09 months. The difference was statistically significant （P 〈 0.05）. Conclusion： Intraperitoneal chemotherapy or in combination with other therapies in patients with advanced primary liver cancer with metastases to abdominal cavity is an effective method. It can prolong the survival time and improve life quality for a certain percentage of patients with advanced pnmary liver cancer.展开更多
Hepatocellular carcinoma (HCC) is one of the most common malignant tumors worldwide. The major etiologies and risk factors for the development of HCC are well defined and some of the multiple steps involved in hepatoc...Hepatocellular carcinoma (HCC) is one of the most common malignant tumors worldwide. The major etiologies and risk factors for the development of HCC are well defined and some of the multiple steps involved in hepatocarcinogenesis have been elucidated in recent years. Despite these scientific advances and the implementation of measures for the early detection of HCC in patients at risk, patient survival has not improved during the last three decades. This is due to the advanced stage of the disease at the time of clinical presentation and limited therapeutic options. The therapeutic options fall into five main categories: surgical interventions including tumor resection and liver transplantation, percutaneous interventions including ethanol injection and radiofrequency thermal ablation, transarterial interventions including embolization and chemoembolization, radiation therapy and drugs as well as gene and immune therapies. These therapeutic strategies have been evaluated in part in randomized controlled clinical trials that are the basis for therapeutic recommendations. Though surgery, percutaneous and transarterial interventions are effective in patients with limited disease (1-3 lesions, ＜5 cm in diameter) and compensated underlying liver disease (cirrhosis Child A), at the time of diagnosis more than 80% patients present with multicentric HCC and advanced liver disease or comorbidities that restrict the therapeutic measures to best supportive care. In order to reduce the morbidity and mortality of HCC, early diagnosis and the development of novel systemic therapies for advanced disease, including drugs, gene and immune therapies as well as primary HCC prevention are of paramount importance. Furthermore, secondary HCC prevention after successful therapeutic interventions needs to be improved in order to make an impact on the survival of patients with HCC. New technologies, including gene expression profiling and proteomic analyses, should allow to further elucidate the molecular events underlying HCC development and to identify novel diagnostic markers as well as therapeutic and preventive targets.展开更多
Hepatocellular carcinoma(HCC) is the fifth most common cancer and the third most common cause of cancer-related death worldwide. There have been great improvements in the diagnosis and treatment of HCC in recent years...Hepatocellular carcinoma(HCC) is the fifth most common cancer and the third most common cause of cancer-related death worldwide. There have been great improvements in the diagnosis and treatment of HCC in recent years, but the problems, including difficult diagnosis at early stage, quick progression, and poor prognosis remain unsolved. Surgical resection is the mainstay of the treatment for HCC. However, 70%-80% of HCC patients are diagnosed at an advanced stage when most are ineligible for potentially curative therapies such as surgical resection and liver transplantation. In recent years, non-surgical management for unrespectable HCC, such as percutaneous ethanol injection, percutaneous microwave coagulation therapy, percutaneous radiofrequency ablation, transcatheter arterial chemoembolization, radiotherapy, chemotherapy, biotherapy, and hormonal therapy have been developed. These therapeutic options, either alone or in combination, have been shown to control tumor growth, prolong survival time, and improve quality of life to some extent. This review covers the current status and progress of non-surgical management for HCC.展开更多
文摘AIM: In the present study, the characteristics of PEI-RFA treatment were further elucidated by analyzing the relationship between the volume of coagulated necrosis and the energy requirement for ablation or the amount of ethanol injected into HCC.METHODS: The volume of coagulated necrosis, total energy requirement and energy requirement for coagulation of per unit volume were examined in the groups of PEI-RFA and RFA alone using the Cool-tip RF system.RESULTS: The results showed that the volume of coagulated necrosis induced was significantly larger in PEI-RFA group than in routine RFA group, when the total energy administered was comparable in both groups.In PEI-RFA, enlargement of coagulated necrosis was admitted in 3 dimensions and the amount of energy requirement per unit volume of coagulated necrosis was negatively correlated with the amount of ethanol injected into HCC.CONCLUSION: These results suggest that, compared to RFA alone, PEI-RFA enables to induce comparable coagulated necrosis with smaller energy requirement, and that PEI-RFA is likely to be less invasive than RFA alone irrespective of inducing enhanced coagulated necrosis.Thus, simple prior injection of ethanol may make RFA treatment more effective and less invasive for the treatment of patients with HCC.
文摘BACKGROUND: Hepatocellular carcinoma (HCC) is one of the most common malignant tumors in the world and ranks the third most common cause of cancer-related death. Surgical resection, liver transplantation and percutaneous ablation are generally considered the only curative treatment for early stage HCC. Besides the limitations of insufficient organ donors and a long waiting time for liver transplantation, however, resection is applied only to patients with good hepatic reserve and localized tumors, with a resectability of 30%. DATA SOURCES: Local ablation therapy, which is minimally invasive but contributes to the significant improvement of survival in patients with unresectable tumor, hasbeen widely used in treating small HCC. Among the techniques of local therapy, percutaneous ethanol injection (PEI) with a complete response in 80% of HCCs less than 3 cm has been accepted as an alternative to surgery in patients with small HCC. Moreover, percutaneous hepatic quantified ethanol injection (PHQEI) or PEI according to the standard criteria has been confirmed to benefit patients with HCC, especially when quantified ethanol is given at a short interval (QESI, the interval was 2-3 days). RESULT: Several limitations related to local percutaneous methods may result in incomplete therapeutic effect in case of larger HCC nodules (>3 cm). CONCLUSION: The combined use of different methods according to the clinical status of patients or tumors may be essential to the effective treatment of HCC.
文摘Objective： To evaluate the effect of intraperitoneal chemotherapy or in combination with other therapies in patients with advanced primary liver cancer. Methods： 72 patients with advanced primary liver cancer with no indication for surgery received intraperitoneal chemotherapy in combination with other therapies including transcatheter arterial chemoembolization （TACE）, radiofrequency catheter ablation （RFA）, percutaneous ethanol injection therapy （PELT） and radiotherapy. Of them, 29 cases were complicated with hilar or retroperitoneal multiple lymph node metastases, 14 with portal vein embolus, 15 with intrapedtoneal and diaphragmatic metastases, 6 with chylous ascites, one with cancerous ascites, and 7 with suspected cancerous ascites （referring to large amounts of ascites without hypoproteinemia while exfoliative cytology of the ascites was positive）. The mean maximum tumor size was 8.2 cm in diameter. Liver function at the initial treatment was Child A in 53 cases, and Child B in 19 cases. I ntrapedtoneal chemotherapy was performed in all these patients. The intraperitoneal chemotherapy protocols included： 5-FU 0.5-0.75 g/d for 10-15 consecutive days, with a total dosage of 5-12.5 g, and at the last day of chemotherapy 10 mg mitomycin （MMC） or 100 mg carboplatin was injected. For 7 cases of cholangiocarcinoma, Gemzar 800-1000 mg was administered additionally. A majority of all these patients received another one or two therapy methods followed by intraperitoneal chemotherapy. TACE was performed in the patients with multiple tumors or nodule more than 5 cm in diameter in the liver, RFA or PElT with nodule fewer than 4 in number and 5 cm or less than 5 cm in diameter and radiotherapy, only for metastases, with metastatic lymph nodes, localized metastasis within the abdominal cavity or portal vein embolus. Interval time between two methods was one month or so. Two months after the sequential therapy, repeated treatment would be given if general medical condition and liver function were perfect at that time. Results： The median survival time of the group was 13.97 ± 6.27 months. The 1- and 2-year survival rates were 59.7% and 30.6% respectively. The mean survival time of the patients with liver function Child A was 15.91 ± 5.49 months, and that of the patients with Child B was 8.55 ± 5.09 months. The difference was statistically significant （P 〈 0.05）. Conclusion： Intraperitoneal chemotherapy or in combination with other therapies in patients with advanced primary liver cancer with metastases to abdominal cavity is an effective method. It can prolong the survival time and improve life quality for a certain percentage of patients with advanced pnmary liver cancer.
文摘Hepatocellular carcinoma (HCC) is one of the most common malignant tumors worldwide. The major etiologies and risk factors for the development of HCC are well defined and some of the multiple steps involved in hepatocarcinogenesis have been elucidated in recent years. Despite these scientific advances and the implementation of measures for the early detection of HCC in patients at risk, patient survival has not improved during the last three decades. This is due to the advanced stage of the disease at the time of clinical presentation and limited therapeutic options. The therapeutic options fall into five main categories: surgical interventions including tumor resection and liver transplantation, percutaneous interventions including ethanol injection and radiofrequency thermal ablation, transarterial interventions including embolization and chemoembolization, radiation therapy and drugs as well as gene and immune therapies. These therapeutic strategies have been evaluated in part in randomized controlled clinical trials that are the basis for therapeutic recommendations. Though surgery, percutaneous and transarterial interventions are effective in patients with limited disease (1-3 lesions, ＜5 cm in diameter) and compensated underlying liver disease (cirrhosis Child A), at the time of diagnosis more than 80% patients present with multicentric HCC and advanced liver disease or comorbidities that restrict the therapeutic measures to best supportive care. In order to reduce the morbidity and mortality of HCC, early diagnosis and the development of novel systemic therapies for advanced disease, including drugs, gene and immune therapies as well as primary HCC prevention are of paramount importance. Furthermore, secondary HCC prevention after successful therapeutic interventions needs to be improved in order to make an impact on the survival of patients with HCC. New technologies, including gene expression profiling and proteomic analyses, should allow to further elucidate the molecular events underlying HCC development and to identify novel diagnostic markers as well as therapeutic and preventive targets.
文摘Hepatocellular carcinoma(HCC) is the fifth most common cancer and the third most common cause of cancer-related death worldwide. There have been great improvements in the diagnosis and treatment of HCC in recent years, but the problems, including difficult diagnosis at early stage, quick progression, and poor prognosis remain unsolved. Surgical resection is the mainstay of the treatment for HCC. However, 70%-80% of HCC patients are diagnosed at an advanced stage when most are ineligible for potentially curative therapies such as surgical resection and liver transplantation. In recent years, non-surgical management for unrespectable HCC, such as percutaneous ethanol injection, percutaneous microwave coagulation therapy, percutaneous radiofrequency ablation, transcatheter arterial chemoembolization, radiotherapy, chemotherapy, biotherapy, and hormonal therapy have been developed. These therapeutic options, either alone or in combination, have been shown to control tumor growth, prolong survival time, and improve quality of life to some extent. This review covers the current status and progress of non-surgical management for HCC.
