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Hemodynamic changes in hepatic cancer before and after cluster electrode radio-frequency ablation

Hepatobiliary & Pancreatic Diseases International 2002年第2期1卷 215-218页

作者： Shu-Rong Luo Yun-You Duan Bo-Shan Zhao Li-Jun Yuan From the Department of Ultrasound Diagnostics, Tangdu Hospital, Fourth Military Medical University, Xi’an 710038, China Department of Ultrasound Diagnostics Tangdu Hospital Fourth Military Medical University Xi'an 710038 China

Objective: To evaluate the hemodynamic changes of hepatic artery (HA), portal vein (PV) and tumors in hepatic cancer patients treated by cluster electrode radio-frequency ablation with the aid of color Doppler flow imaging (CDFI). Methods: The hemodynamic changes of HA, PV and 42 tumors in 30 cases of hepatic cancer were investi- gated by CDFI one week before and after cluster e- lectrode radio-frequency ablation. Results: One week after radio-frequency ablation, the velocity of HA decreased (Pradio- frequency ablation, blood signals were observed in 35 cancer nodes (83.0 % of all 42 nodes). After radio- frequency ablation, blood signals were reduced in 15 nodes and disappeared in 14 nodes. Early investiga- tion implied that the decrease of blood supply was parallel with the reduction of node size. However, the outcome in case of huge nodes with double blood supply was not as promising as those small nodes. Conclusion: CDFI is useful to assess blood supply in ablation of hepatic cancer by using cluster electrode radio-frequency therapy.

关键词： CDFI hepatic cancer radio-frequency ablation hemodynamic

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radiofrequency ablation as a treatment for hilar cholangiocarcinoma

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World Journal of Gastroenterology 2008年第28期14卷 4540-4545页

作者： Wei-Jun Fan Pei-Hong Wu Liang Zhang Jin-Hua Huang Fu-Jun Zhang Yang-Kui Gu Ming Zhao Xiang-Long Huang Chang-Yu Guo Cancer Center of Sun Yat-Sen University 651# Dong Feng Dong Road Guangzhou 510060 Guangdong Province China radiology Department Centro Hospitalar Conde de Sao Januario (CHCSJ) Macao SAR CP3002 China

AIM: To explore the role of radio-frequency ablation (RFA) as a treatment for hilar cholangiocarcinoma. METHODS: Eleven patients with obstructive cholestasis underwent Computed Tomography (CT) examination, occupying lesions were observed in the hepatic hilar region in each patient. All lesions were confirmed as cholangioadenocarcinoma by biopsy and were classified as type or by percutaneous transhepatic cholangiography. Patients were treated with multiple electrodes RFA combined with other adjuvant therapy. The survival rate, change of CT attenuation coefficient of the tumor and tumor size were studied in these patients after RFA. RESULTS: In a follow-up CT scan one month after RFA, a size reduction of about 30% was observed in six masses, and two masses were reduced by about 20% in size, three of the eleven masses remained unchanged. In a follow-up CT scan 6 mo after RFA, all the masses were reduced in size (overall 35%), in which the most significant size reduction was 60%. The survival follow-up among these eleven cases was 18 mo in average. Ongoing follow-up showed that the longest survival case was 30 mo and the shortest case was 10 mo. CONCLUSION: RFA is a microinvasive and effective treatment for hilar cholangiocarcinoma.

关键词： radio-frequency ablation Cholangiocarcinoma Computed tomography

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Successful initial ablation therapy contributes to survival in patients with hepatocellular carcinoma

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World Journal of Gastroenterology 2007年第7期13卷 1003-1009页

作者： Manabu Morimoto Kazushi Numata Kazuya Sugimori Kazuhito Shirato Atsushi Kokawa Hiroyuki Oka Kingo Hirasawa Ryonho Koh Hiromi Nihommatsu Katsuaki Tanaka Gastroenterological Center Yokohama City University Medical Center 4-57 Urafune-cho Minami-ku Yokohama 232-0024 Japan

AIM： To evaluate the outcome predictors of percutaneous ablation therapy in patients with unresectable hepatocellular carcinoma （HCC）, especially to identify whether the initial treatment response contributes to the survival of the patients. METHODS： The study cohort included 153 patients with single （102） and two or three （51） HCC nodules 5 cm or less in maximum diameter. As an initial treatment, 110 patients received radiofrequency ablation and 43 patients received percutaneous ethanol injection. RESULTS： The Kaplan-Meier estimates of overall 3- and S-year survival rates were 75% and 59%, respectively. The log-rank test revealed statistically significant differences in the overall survivals according to ChildPugh class （P = 0.0275）, tumor size （P = 0.0130）, serum albumin level （P = 0.0060）, serum protein induced by vitamin K absence or antagonist Ⅱ level （P = 0.0486）, and initial treatment response （P = 0.0130）. The independent predictors of survival were serum albumin level （dsk ratio, 3.216; 950 CI, 1.407-7.353; P = 0.0056） and initial treatment response （risk ratio, 2.474; 95% CI, 1.076-5.692; P = 0.0330） based on the Cox proportional hazards regression models. The patients had a serum albumin level 3.5 g/dL and the 3- and 5-year survival rates of 86% and 82%. CONCLUSION： In HCC patients treated with percutaneous ablation therapy, serum albumin level and initial treatment response are the independent outcome predictors.

关键词： Percutaneous ethanol injection radio-frequency ablation Successful initial treatment Overallsurvival Prognostic factor

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