Hepatocellular Carcinoma Undergoing Radiofrequency Ablation Research Articles

Impact of HCV eradication on recurrence pattern and long-term outcomes in patients with HCV-related hepatocellular carcinoma undergoing radiofrequency ablation.

The benefits of HCV eradication on distinct recurrence patterns and long-term hepatic outcomes in patients with hepatocellular carcinoma (HCC) undergoing radiofrequency ablation (RFA) remain uncertain. This study aims to assess the impact of HCV eradication on HCC recurrence patterns and long-term hepatic outcomes after RFA and to identify predictors of recurrence in patients achieving sustained virological response (SVR). We retrospectively enrolled 274 patients receiving RFA for HCV-related HCC, including 73 and 88 patients treated with interferon-based (IFN) and direct-acting antivirals (DAA) therapy, respectively. We analysed factors associated with local tumour progression (LTP), distant recurrence, overall survival, and hepatic decompensation. SVR was achieved in 49.3% of patients undergoing IFN therapy and 93.2% of patients undergoing DAA therapy. HCV eradication was not associated with LTP but significantly correlated with reduced risk of distant recurrence (by DAA: hazard ratio (HR) = 0.449, p = 0.006), overall survival (by IFN: HR = 0.242, p < 0.001; by DAA: HR = 0.274, p < 0.001) and hepatic decompensation (by IFN: HR = 0.313, p = 0.004; by DAA: HR = 0.281, p < 0.001). The benefits of achieving SVR in terms of overall survival and hepatic decompensation remained significant in subgroups of patients with and without recurrence. Patients with SVR showed a significant decline in FIB-4 score and a higher proportion of ALBI grade improvement. Among SVR patients, the IMbrave050 criteria predicted LTP but not distant recurrence, whereas the FIB-4 score after SVR, rather than the baseline FIB-4, predicted distant recurrence. HCV eradication was associated with a significant reduction in distant recurrence, mortality and hepatic decompensation following RFA in patients with HCV-related HCC.

Risk Models for Predicting the Recurrence and Survival in Patients With Hepatocellular Carcinoma Undergoing Radio-Frequency Ablation

Background: Hepatocellular carcinoma (HCC) patients have a poor prognosis after radio-frequency ablation (RFA), and investigating the risk factors affecting RFA and establishing predictive models are important for improving the prognosis of HCC patients. Methods: Patients with HCC undergoing RFA in Shenzhen People’s Hospital between January 2011 and December 2021 were included in this study. Using the screened independent influences on recurrence and survival, predictive models were constructed and validated, and the predictive models were then used to classify patients into different risk categories and assess the prognosis of different categories. Results: Cox regression model indicated that cirrhosis (hazard ratio [HR] = 1.65), alpha-fetoprotein (AFP) ⩾400 ng/mL (HR = 2.03), tumor number (multiple) (HR = 2.11), tumor diameter ⩾20 mm (HR = 2.30), and platelets (PLT) ⩾ 244 (109/L) (HR = 2.37) were independent influences for recurrence of patients after RFA. On the contrary, AFP ⩾400 ng/mL (HR = 2.48), tumor number (multiple) (HR = 2.52), tumor diameter ⩾20 mm (HR = 2.25), PLT ⩾244 (109/L) (HR = 2.36), and hemoglobin (HGB) ⩾120 (g/L) (HR = 0.34) were regarded as independent influences for survival. The concordance index (C-index) of the nomograms for predicting disease-free survival (DFS) and overall survival (OS) was 0.727 (95% confidence interval [CI] = 0.770-0.684) and 0.770 (95% CI = 0.821-7.190), respectively. The prognostic performance of the nomograms was significantly better than other staging systems by analysis of the time-dependent C-index and decision curves. Each patient was scored using nomograms and influencing factors, and patients were categorized into low-, intermediate-, and high-risk groups based on their scores. In the Kaplan-Meier survival curve, DFS and OS were significantly better in the low-risk group than in the intermediate- and high-risk groups. Conclusions: The 2 prediction models created in this work can effectively predict the recurrence and survival rates of HCC patients following RFA.

Tumor burden score as a new prognostic surrogate in patients with hepatocellular carcinoma undergoing radiofrequency ablation: role of albumin-bilirubin (ALBI) grade vs easy ALBI grade

ABSTRACT Introduction Tumor burden score (TBS) was proposed to represent tumor burden in solid tumors, including hepatocellular carcinoma (HCC). The prognostic role of TBS in HCC patients in relation to recently introduced liver reserve markers, albumin-bilirubin (ALBI) grade, and easy (EZ)-ALBI grade, is unclear. We aimed to investigate the feasibility of TBS in HCC patients undergoing radiofrequency ablation (RFA). Research design and methods A total of 576 treatment-naïve patients with HCC undergoing RFA were analyzed. The multivariate Cox analysis was used to identify independent predictors associated with tumor recurrence and long-term survival. Results Patients with high TBS had increased risk of tumor recurrence and mortality compared with those with low TBS. The Cox analysis showed that serum ɑ-fetoprotein (AFP) level >20 ng/mL, medium and high TBS, ALBI grade 2 and grade 3, EZ-ALBI grade 2 and grade 3 were associated with tumor recurrence and decreased patient survival (all p <0.05). In addition, TBS can reliably stratify tumor recurrence and overall survival in different ALBI and EZ-ALBI grade groups. Conclusions TBS is a simple and feasible prognostic surrogate to predict tumor recurrence and survival in HCC patients undergoing RFA. Its prognostic ability remains stable in patients with variable liver functional reserve.

Preoperative prognostic value of alfa-fetoprotein density in patients with hepatocellular carcinoma undergoing radiofrequency ablation

Objectives To examine the prognostic value of preoperative alfa-fetoprotein (AFP) density and other clinical factors in patients undergoing percutaneous radiofrequency ablation (RFA) of hepatocellular carcinoma (HCC). Methods From January 2010 to December 2018, a total of 543 patients undergoing RFA for HCC meeting the Milan criteria were included at our institution. AFP density was calculated as absolute AFP pre-ablation divided by the total volume of all HCC lesions. The survival rates according to AFP density were estimated using the Kaplan–Meier method and compared using the log-rank test. Univariate and multivariate Cox proportional-hazards regression analyses were used to assess predictors of overall survival (OS) and progression-free survival (PFS). Results The Kaplan–Meier 1-, 3-, and 5-year OS rates were 98.8%, 88.5%, and 70.4%, respectively, for the low AFP density group, and 98.3%, 74.9%, and 49.4%, respectively, for the high AFP density group. The corresponding PFS rates were 78.9%, 56.7%, and 40.9% (low AFP density group), and 63.6%, 40.8%, and 27.5% (high AFP density group). High AFP density was associated with significantly reduced PFS and OS (both p < 0.001). Multivariate analysis suggested that AFP density was a predictor of OS and PFS. Conclusions Serum AFP density may serve as a promising predictor of survival in patients with HCC undergoing RFA. High AFP density could identify patients who might be prone to recurrence or progression and need close surveillance.

Effect of Nursing Strategies on the Performance and Satisfaction of Patients with Hepatocellular Carcinoma undergoing Radiofrequency Ablation Therapy

Effect of Nursing Strategies on the Performance and Satisfaction of Patients with Hepatocellular Carcinoma undergoing Radiofrequency Ablation Therapy

Prognostic Role of Albumin-Bilirubin Grade in Hepatocellular Carcinoma After Ultrasound-guided Percutaneous Radiofrequency Ablation: A Single-center Experience Over a Decade.

The albumin-bilirubin (ALBI) grade has been proposed to evaluate liver function and predict prognosis in patients with hepatocellular carcinoma (HCC). Data are scarce in terms of the clinical application of ALBI score in patients with HCC undergoing radiofrequency ablation (RFA). The current study sought to assess the prognostic efficacy of ALBI grade in early-stage HCC after RFA. We retrospectively reviewed 344 treatment-naive patients, whereby the overall survival (OS), recurrence-free survival (RFS), local tumor progression, and intrahepatic distant recurrence were assessed using Kaplan-Meier analysis. Predictors determining OS and RFS after RFA were analyzed using Cox proportional hazards analysis. During a median follow-up time of 48.0 months (range: 2 to 158 mo), 48 patients had died because of tumor progression or liver failure. Patients with ALBI grade 2 had poorer OS (P=0.033) and RFS (P=0.002), and higher intrahepatic distant recurrence rate (P<0.001) than those with ALBI grade 1. Local tumor progression rates were comparable between the 2 groups (P=0.801). Multivariate analyses showed that ABLI grade 2 was the only independent risk factor for poor OS (hazard ratio=1.850, 95% confidence interval: 1.041-3.286, P=0.036) and poor RFS (hazard ratio=1.467, 95% confidence interval: 1.094-1.968, P=0.011) after RFA. For Child-Pugh grade A group, patients divided by ALBI grade 1 versus grade 2 showed significant differences in both OS and RFS (P=0.039 and 0.002). The ALBI grade can be used to discriminate long-term prognosis in patients with HCC following RFA and to further stratify prognosis in those with Child-Pugh grade A.

The Prognostic Value of the Albumin to Gamma-Glutamyltransferase Ratio in Patients with Hepatocellular Carcinoma Undergoing Radiofrequency Ablation.

Albumin to gamma-glutamyltransferase ratio (AGR) is a newly developed biomarker for the prediction of patients' prognosis in solid tumors. The purpose of the study was to establish a novel AGR-based nomogram to predict tumor prognosis in patients with early-stage HCC undergoing radiofrequency ablation (RFA). 394 hepatocellular carcinoma (HCC) patients who had received RFA as initial treatment were classified into the training cohort and validation cohort. Independent prognostic factors were identified by univariate and multivariate analyses. The value of AGR was evaluated by the concordance index (C-index), receiver operating characteristic (ROC) curves, and likelihood ratio tests (LAT). Logistic regression and nomogram were performed to establish the pretreatment scoring model based on the clinical variables. As a result, AGR = 0.63 was identified as the best cutoff value to predict overall survival (OS) in the training cohort. According to the results of multivariate analysis, AGR was an independent indicator for OS and recurrence-free survival (RFS). In both training cohort and validation cohort, the high-AGR group showed better RFS and OS than the low-AGR group. What is more, the C-index, area under the ROC curves, and LAT χ2 values suggested that AGR outperformed the Child-Pugh (CP) grade and albumin-bilirubin (ALBI) grade in terms of predicting OS. The AGR, AKP, and tumor size were used to establish the OS nomogram. Besides, the results of Hosmer-Lemeshow test and calibration curve analysis displayed that both nomograms in the training and validation cohorts performed well in terms of calibration. Therefore, the AGR-based nomogram can predict the postoperative prognosis of early HCC patients undergoing RFA.

Effect of Self-Care Guidelines on Quality of Life for Patients with Hepatocellular Carcinoma Undergoing Radiofrequency Ablation

Context: Hepatocellular carcinoma (HCC) is considered one of the most challenging tumors with high incidence, prevalence, and mortality rates. Radiofrequency Ablation (RFA) is one of the emerging therapeutic modalities used for the minimally invasive treatment in the management of early-stage HCC.&#x0D; Aim: This study aimed to assess the effect of self-care guidelines on quality of life for patients with Hepatocellular Carcinoma undergoing Radio Frequency Ablation.&#x0D; Methods: A quasi-experimental design was used to achieve the aim of this study. This study was conducted at the Interventional Radiology Unit, affiliated to Ain Shams University Hospital, on a purposive sample of 50 patients with hepatocellular carcinoma; 25 randomly allocated to the study group, and 25 allocated to the control group. A structured interview questionnaire for patients with hepatocellular carcinoma undergoing radiofrequency ablation was used to collect the study data. It comprises three parts: Sociodemographic characteristic, assessment of patients' medical health, and knowledge about HCC and RFA. The second tool was the quality of life of cancer survivors questionnaire (pre /posttest), and finally, a patient-reported self-care practices assessment checklist (pre /posttests).&#x0D; Results: There were statistically significant differences between the study and control groups regarding their total knowledge about hepatocellular carcinoma and radiofrequency ablation therapy pre and post-implementation of self-care guidelines. There were highly statistically significant differences between both groups regarding the total quality of life, pre and post-implementation of self-care guidelines. In addition, there were highly statistically significant differences regarding total self-care practice, pre, and post-implementation of self-care guidelines. A positive correlation was revealed between total knowledge with total self-care practice and total quality of life (pre/posttest). Also, a significant correlation was revealed between the total quality of life and self-care practices post self-care guidelines implementation at (p&lt;0.001).&#x0D; Conclusion: Implementation of self-care guidelines were improved patients' knowledge, quality of life, and self-care practices for patients with hepatocellular carcinoma undergoing radiofrequency ablation. A simplified, illustrated, and comprehensive Arabic booklet including self-care guidelines should be available for patients with hepatocellular carcinoma undergoing radiofrequency ablation. Replication of the current study on a larger probability sample is recommended to achieve generalization of the results. Further studies are recommended to assess factors affecting the quality of life for patients with hepatocellular carcinoma undergoing radiofrequency ablation.

Albumin-to-alkaline phosphatase ratio as a predictor of tumor recurrence and prognosis in patients with early-stage hepatocellular carcinoma undergoing radiofrequency ablation as initial therapy

Objective Albumin-to-alkaline phosphatase ratio (AAPR), a newly developed blood biomarker, has been reported to have prognostic value in several types of cancer. This study aimed to investigate the predictive value of AAPR in patients with early-stage hepatocellular carcinoma (HCC) undergoing radiofrequency ablation (RFA) as initial therapy. Methods This retrospective study analyzed 445 patients with newly diagnosed HCC undergoing RFA as initial therapy. A series of survival analyses were performed to evaluate the prognostic value of AAPR. Univariate and multivariate analyses were performed to identify independent prognostic factors. An AAPR-based nomogram was constructed, and its predictive performance was validated. Results Patients with a low AAPR had a significantly reduced recurrence-free survival (RFS) and overall survival (OS) compared with those with a high AAPR. AAPR was found to be an independent prognostic indicator and showed superior discrimination efficacy than other liver function indices. The AAPR-based nomogram had a concordance index value of 0.72 (95% confidence interval [CI]: 0.65–0.79) in the training cohort and 0.72 (95% CI: 0.63–0.81) in the validation cohort, which significantly outperformed other existing staging systems. Conclusions AAPR serves as a promising indicator of prognosis in patients with early-stage HCC undergoing RFA. The AAPR-based nomogram might contribute to individualized prognosis prediction and clinical decision making.

Preoperative Albumin-Bilirubin Grade With Prognostic Nutritional Index Predicts the Outcome of Patients With Early-Stage Hepatocellular Carcinoma After Percutaneous Radiofrequency Ablation.

Background: Prognostic nutritional index (PNI) that was designed to assess the nutritional and immunological status of patients and albumin–bilirubin (ALBI) grades can be used as an assessment tool for hepatic function. Both nutritional and immunological statuses have been reported to be independent prognostic factors of patients with hepatocellular carcinoma (HCC). This study aimed to investigate whether PNI together with ALBI could be a better predictor in patients with early-stage HCC undergoing radiofrequency ablation (RFA).Method: The information of 110 patients with newly diagnosed HCC within the Milan criteria receiving RFA as the initial therapy between 2014 and 2015 was retrospectively collected. Pretreatment PNI, ALBI, and PNI-ALBI grades were calculated. Overall survival (OS) and recurrence-free survival (RFS) were estimated by the Kaplan–Meier method, and multivariate analysis was used to identify prognostic factors.Result: The 1-, 3-, and 5-years OS rates of patients were 80.0, 30.9, and 23.9%, respectively. Multivariate analysis showed that the tumor size [hazard ratio (HR) = 1.966, 95% confidence interval (CI) = 1.091–3.545, P = 0.025], PNI grade (H = 2.558, 95% CI = 1.289–5.078, P = 0.007), and PNI-ALBI grade (HR = 3.876, 95% CI = 1.729–8.690, P = 0.001) were independent risk factors for OS, whereas only the elevated α-fetoprotein (HR = 1.732, 95% CI = 1.003–2.991, P = 0.049) and the size of the tumor (HR = 1.640, 95% CI = 1.015–2.647, P = 0.43) were independent predictors for better RFS.Conclusion: This study demonstrates that preoperative PNI-ALBI grade is a simple and useful predictor for OS in patients with early-stage HCC after RFA.

Effect of Nursing Care Instructions on Outcomes of Patients with Hepatocellular Carcinoma Undergoing Radiofrequency Ablation Therapy

Effect of Nursing Care Instructions on Outcomes of Patients with Hepatocellular Carcinoma Undergoing Radiofrequency Ablation Therapy

VWF/ADAMTS13 ratio as a potential biomarker for early detection of hepatocellular carcinoma

BackgroundTo investigate the von Willebrand factor to ADAMTS13 ratio as a potential biomarker for early detection of hepatocellular carcinoma (HCC) in cirrhosis.MethodsSerum levels of alpha-fetoprotein, des-γ-carboxy prothrombin, Lens culinaris agglutinin-reactive fraction of alpha-fetoprotein (alpha-fetoprotein-L3%), vascular endothelial growth factor, and vascular endothelial growth factor receptor-2, as well as the plasma levels of von Willebrand factor antigen (von Willebrand factor: Ag) and ADAMTS13 activity (ADAMTS13:AC), were evaluated in 41 cirrhotic patients with HCC undergoing radiofrequency ablation and in 20 cirrhotic patients without HCC. The diagnostic accuracy of each biomarker was evaluated using the receiver operating characteristic curve analysis.ResultsThe von Willebrand factor: Ag and von Willebrand factor: Ag/ADAMTS13:AC ratios were significantly higher in cirrhotic patients with HCC than in those without HCC (p < 0.05 and p < 0.01, respectively), whereas ADAMTS13:AC was significantly lower in those with HCC than those without HCC (p < 0.05). However, no relationship was observed between the von Willebrand factor: Ag/ADAMTS13:AC ratio and serum tumor markers such as alpha-fetoprotein, des-γ-carboxy prothrombin, and alpha-fetoprotein-L3%. Multivariate regression analysis identified von Willebrand factor: Ag/ADAMTS13:AC ratio and alpha-fetoprotein-L3% as significant factors of HCC development. Receiver operating characteristic analysis showed that the von Willebrand factor: Ag/ADAMTS13:AC ratio and alpha-fetoprotein-L3% had a better performance than alpha-fetoprotein, des-γ-carboxy prothrombin, alpha-fetoprotein-L3%, vascular endothelial growth factor, and vascular endothelial growth factor receptor-2, von Willebrand factor: Ag, and ADAMTS13:AC. The von Willebrand factor: Ag/ADAMTS13:AC ratio was exclusively correlated with tumor volume and stage as well as serum vascular endothelial growth factor levels.ConclusionsThe von Willebrand factor: Ag/ADAMTS13:AC ratio can potentially serve as a novel biomarker for early diagnosis of HCC in cirrhotic patients.

Development and validation of a prognostic model for patients with hepatocellular carcinoma undergoing radiofrequency ablation.

BackgroundThere are large variations in prognosis among hepatocellular carcinoma (HCC) patients undergoing radiofrequency ablation (RFA). However, current staging or scoring systems hardly discriminate the outcome of HCC patients treated with RFA.MethodsA total of 757 treatment‐naïve HCC patients undergoing RFA (derivation cohort) were analyzed to establish a nomogram for disease‐free survival (DFS) based on Cox proportional hazard regression model. Accuracy of the nomogram was assessed and compared with conventional staging or scoring systems. Furthermore, external validation was performed in an independent cohort including 208 patients (validation cohort).ResultsTumor size, tumor number, alpha‐fetoprotein, prothrombin induced by vitamin K absence‐II, lymphocyte count, albumin, and presence of ascites were adopted to construct the prognostic nomogram from the derivation cohort. Calibration curves to predict probability of DFS at 3 and 5 years after RFA showed good agreements between the nomogram and actual observations. The concordance index of the present nomogram was 0.759 (95% confidence interval 0.728‐0.790), which was superior to those of conventional staging or scoring systems (range 0.505‐0.683, all P < .001). These results were also reproduced in the validation cohort.ConclusionOur simple‐to‐use nomogram optimized for treatment‐naïve HCC patients undergoing RFA provided better prognostic performance than conventional staging or scoring systems.

Prognostic value of enhancement rate by enhanced ultrasound in hepatitis B virus-positive hepatocellular carcinoma undergoing radiofrequency ablation.

To assess the prognostic significance of enhancement rate (ER) measured by contrast-enhanced ultrasonography (CEUS) in patients with hepatocellular carcinoma (HCC) undergoing radiofrequency ablation (RFA). A total of 253 patients with single primary HCC undergoing preoperative CEUS and RFA were enrolled in this study. The ER were evaluated though pretreatment CEUS. After a mean follow-up of 36.8 ± 10.2 months, the correlation of ER measured by CEUS and survival after RFA was analyzed by univariate and multivariate analysis. The optimal cutoff ER value to predict survival was determined using receiver-operating characteristic analysis. Mean follow-up period for all 253 patients was 36.8 ± 10.2 months, 31.2% of patients had died at endpoint. The optimal cutoff ER value predicting survival was 2.2dB/s. Univariate analysis demonstrated that patients with a high ER level had poorer OS (62.8months vs 48.8 months, P=0.02) and recurrence-free survival (RFS = 60.2months vs 47.4 months, P=0.03) than patients with a low ER level. ER measured by CEUS also been confirmed as independent risk factor for overall survival (hazard ratio [HR], 1.87; 95% confidence interval [95% CI], 1.21-7.25; P<0.01) and RFS (HR, 1.67; 95% CI, 1.08-6.21; P<0.01) in multivariate analysis enrolling gender, BMI, tumor size, antiviral therapy, HBV DNA, histological differentiation, Child-Pugh score and tumor node metastasis (TNM) stage. ER measured by CEUS was a significant predictive factor for survival after RFA for HCC.

Serum levels of ferritin do not affect the prognosis of patients with hepatocellular carcinoma undergoing radiofrequency ablation.

Background & aimsHepatic iron accumulation can accelerate liver injury in patients with various chronic liver diseases and lead to hepatocarcinogenesis. We elucidated the impact of serum levels of ferritin on the prognosis of hepatocellular carcinoma (HCC) after radiofrequency ablation (RFA) in a large cohort.MethodsWe retrospectively analyzed 578 treatment-naïve HCC patients who underwent RFA. We divided our cohort into four groups by the quartile points of serum ferritin level: G1 (≤55 ng/mL, n = 148), G2 (56–130 ng/mL, n = 142), G3 (131–243 ng/mL, n = 144) and G4 (≥244 ng/mL, n = 144). We analyzed the recurrence and survival of patients using the Kaplan–Meier method. We also evaluated pathological iron deposition among patients with a solitary tumor smaller than 2 cm.ResultsThe cumulative rates of overall recurrence and survival at 5 years were 81.6% and 66.3%, respectively. The serum levels of ferritin were correlated with pathological iron deposition. There were no significant differences in recurrence and survival rates according to serum levels of ferritin and pathological hepatic iron deposition.ConclusionsSerum levels of ferritin do not affect the prognosis of HCC patients undergoing RFA.

Prognostic Performance of Ten Liver Function Models in Patients with Hepatocellular Carcinoma Undergoing Radiofrequency Ablation

Liver functional capacity is a crucial survival determinant for hepatocellular carcinoma (HCC). Noninvasive models were proposed to assess hepatic reserve, but their performance in outcome prediction is unclear. We aimed to investigate 10 currently used liver function models in HCC patients undergoing radiofrequency ablation (RFA). A total 499 HCC patients were prospectively identified. Homogeneity and corrected Akaike information criteria (AICc) were compared. Cox proportional hazards model was used to identify independent survival predictors. Significance survival differences were found across 10 noninvasive models (all p < 0.001) except for GUCI and APRI grade 2 vs 3, and King’s score grade 1 vs 2. Among these models, ALBI grade showed the highest homogeneity and lowest AICs value, indicating a better prognostic performance. Within Child-Turcotte-Pugh (CTP) score 5 group, significant survival difference was demonstrated between ALBI grade 1 and 2 (p < 0.001); for those with CTP score 6 or higher, only ALBI grade 2 and 3 showed survival difference (p < 0.001). Cox analysis disclosed that ALBI grade, tumor size and performance status were independent prognostic predictors. There was significant correlation between CTP score and other 9 models. We conclude that ALBI grade may serve as objective and feasible surrogate for prognostic prediction in HCC patients undergoing RFA.

Implication of Psoas Muscle Index on Survival for Hepatocellular Carcinoma Undergoing Radiofrequency Ablation Therapy.

Aims We aimed to retrospectively examine the impact of pretreatment psoas muscle index (PMI) as determined by computed tomography on survival for treatment naïve hepatocellular carcinoma (HCC) patients who underwent percutaneous radiofrequency ablation (RFA) therapy (n=182; 111 males and 71 females with median age of 70 years).Patients and methods Optimal cut-off points of PMI in male and female were calculated by receiver operating characteristic analysis for survival. We investigated parameters associated with overall survival (OS) in the univariate and multivariate analyses.Results The median follow-up period in this study was 4.28 years. For all cases, the 5-year cumulative OS rate after initial RFA was 69.2%. The median (range) value in PMI for male was 6.03 (1.63-9.90) cm2/m2 whereas that for female was 4.06 (1.21-7.32) cm2/m2. Maximum tumor size ranged from 0.7 cm to 3.5 cm (median, 1.5cm). There were 145 patients with single nodule and 37 with multiple nodules. The optimal cut-off point for PMI was 6.31 cm2/m2 in male and 3.91 cm2/m2 in female. The 5-year cumulative OS rates were 51.5% in the decreased PMI group (n=90) and 86.5% in the non-decreased PMI group (n=92) (P<0.0001). In patients with Child-Pugh A (n=137) and Child-Pugh B or C (n=45), similar results were obtained. In the multivariate analysis, presence of decreased PMI (P<0.0001), total bilirubin ≥1.2 mg/dl (P=0.0015) and des-γ-carboxy prothrombin ≥34 mAU/ml (P=0.0089) were found to be significant adverse predictors related to OS.Conclusion PMI can be useful for predicting outcomes in HCC patients undergoing percutaneous RFA therapy.

Impact of renal insufficiency on patients with hepatocellular carcinoma undergoing radiofrequency ablation.

Renal insufficiency (RI) is commonly seen in patients with hepatocellular carcinoma (HCC). We aimed to investigate the impact of RI on the long-term survival of HCC patients undergoing radiofrequency ablation (RFA) and to determine the optimal staging strategy for these patients. RI was defined as an estimated glomerular filtration rate < 60 mL/min/1.73 m(2) . A total of 123 and 344 patients with and without RI undergoing RFA, respectively, were enrolled. A one-to-one propensity score matching analysis with preset caliper width was performed. The prognostic ability of four currently used staging systems was compared by the Akaike information criterion (AIC). HCC patients with RI undergoing RFA were older (P < 0.001) and had significantly different baseline characteristics. Of all patients, RI was significantly associated with a decreased long-term survival (P = 0.03). After matching in the propensity model, the baseline characteristics were similar between patients with (n = 92) and without (n = 92) RI. In the propensity model, RI was not significantly associated with a shortened survival (P = 0.273). In the Cox multivariate analysis, Child-Turcotte-Pugh class B or C was identified as the only independent predictor of poor prognosis. Among patients with RI undergoing RFA, the Taipei Integrated Scoring (TIS) system provided the highest homogeneity and lowest AIC value among the currently used staging systems. The long-term survival of HCC patients undergoing RFA is not affected by RI. The TIS staging system may provide a better prognostic prediction for HCC patients with RI undergoing RFA.

Safety and Efficacy of Metformin in Patients With Type 2 Diabetes Mellitus and Chronic Hepatitis C

To evaluate the safety and efficacy of metformin in patients with type 2 diabetes mellitus (T2DM) and chronic hepatitis C virus (HCV) with or without cirrhosis and hepatocellular carcinoma (HCC). A PubMed (1946-August 2013) search using the keywords type 2 diabetes mellitus, metformin, hepatitis C virus, cirrhosis, and hepatocellular carcinoma was conducted. The references in published articles were reviewed to identify additional references for inclusion. Studies written in English, evaluating metformin use in human patients with T2DM and chronic HCV were included. Eight studies met criteria for inclusion. Two prospective, randomized controlled trials showed increased benefit with metformin on virological response in patients with insulin resistance receiving HCV treatment. A prospective observational study evaluated metformin exclusively in patients with T2DM and HCV and showed significant reductions in the occurrence of HCC, liver-related death, and liver transplant. Four retrospective case control studies showed a decreased risk of HCC with metformin treatment in patients with T2DM and chronic liver disease. Finally, a retrospective cohort study indicated an increased survival rate in patients with diabetes and HCC undergoing radiofrequency ablation. Although diarrhea was increased in patients receiving metformin, no serious adverse effects, including lactic acidosis, were reported. Metformin may provide benefit in the treatment of HCV and in reducing the risk of HCC in patients with T2DM and HCV. Further long-term, randomized controlled trials are needed to adequately assess the safety and efficacy of metformin therapy in patients with comorbid diabetes and chronic HCV.

Postoperative Neutrophil-to-Lymphocyte Ratio Change Predicts Survival of Patients with Small Hepatocellular Carcinoma Undergoing Radiofrequency Ablation

BackgroundAn elevated preoperative neutrophil-to-lymphocyte ratio (NLR) has been reported to be a prognostic factor for hepatocellular carcinoma (HCC) patients after treatment. However, the clinical implication of postoperative NLR change remains unclear.Materials and MethodsFrom May 2005 to Aug 2008, a cohort of consecutive 178 small HCC patients treated with radiofrequency ablation (RFA) was retrospectively reviewed. The NLR was recorded within 3 days before and 1 month after RFA. Baseline characteristics, overall survival (OS) and recurrence free survival (RFS) were compared according to preoperative NLR and/or postoperative NLR change. Prognostic factors were assessed by multivariate analysis.ResultsCompared with preoperative NLR level, postoperative NLR decreased in 87 patients and increased in 91 patients after RFA. No significant differences were identified between two groups in commonly used clinic-pathologic features. The 1, 3, 5 years OS was 98.8%, 78.6%, 67.1% for NLR decreased group, and 92.2%, 55.5%, 35.4% for NLR increased group respectively (P<0.001); the corresponding RFS was 94.2%, 65.2%, 33.8% and 81.7%, 46.1%, 12.4% respectively (P<0.001). In subgroup analysis, the survival of patients with lower or higher preoperative NLR can be distinguished more accurate by postoperative NLR change. Multivariate analysis showed that postoperative NLR change, but not preoperative NLR, was an independent prognostic factor for both OS (P<0.001, HR = 2.39, 95%CI 1.53–3.72) and RFS (P = 0.003, HR = 1.69, 95%CI 1.87–8.24).ConclusionThe postoperative NLR change was an independent prognostic factor for small HCC patient undergoing RFA, and patients with decreased NLR indicated better survival than those with increased NLR.