Transarterial Embolization With Cyanoacrylate for Severe Arterioportal Shunt Complicated by Hepatocellular Carcinoma

Hepatic Arterial Infusion Chemotherapy Combined with Lenvatinib and PD-1 Inhibitors for Managing Arterioportal Shunt in Hepatocellular Carcinoma with Portal Vein Tumor Thrombus: A Retrospective Cohort Study

Purpose

This study aimed to assess the effectiveness and safety of combining hepatic arterial infusion chemotherapy (HAIC) with lenvatinib (LEN) and PD-1 inhibitors in treating arterioportal shunt (APS) in hepatocellular carcinoma (HCC) patients with portal vein tumor thrombus (PVTT).

Patients and Methods

Conducted retrospectively, the study enrolled 54 HCC patients with APS and PVTT treated with HAIC, LEN, and PD-1 inhibitors at our center between January 2021 and October 2023. APS improvement, APS recanalization, tumor response, PVTT response rate, overall survival (OS), intrahepatic progression-free survival (InPFS), and adverse events were evaluated.

Results

APS improvement was observed in 42 patients (77.8%), with all improvement occurring within two treatment sessions. Complete APS occlusion was achieved in 40 patients (74.1%), and no recanalization occurred. The best objective response rate (ORR) and ORR after two HAIC sessions were 74.1% and 66.7%, respectively. The best PVTT response and PVTT response after two HAIC sessions were 98.1% and 94.4%, respectively. The median OS and InPFS were 10.0 months and 5.0 months, respectively. OS and InPFS were longer in patients with APS occlusion compared to those without (OS 12.1 vs 4.4 months, P<0.001, InPFS 6.2 vs 2.3 months, P=0.049). ALBI grade, extrahepatic spread, APS disappearance were potential prognostic factors for OS, while APS grade and extrahepatic spread being independently associated with InPFS. No treatment-related mortality occurred.

Conclusion

Combining HAIC with LEN and PD-1 inhibitors proves to be both effective and safe in managing APS in HCC with PVTT, potentially improving patient survival.

Treatment efficacy and safety of drug-eluting beads transarterial chemoembolization versus conventional transarterial chemoembolization in hepatocellular carcinoma patients with arterioportal fistula

This study aimed to compare the treatment efficacy and tolerance between drug-eluting beads transarterial chemoembolization (DEB-TACE) and conventional transarterial chemoembolization (cTACE) in hepatocellular carcinoma (HCC) patients with arterioportal fistula (APF). A total of 44 HCC patients with APF scheduled for DEB-TACE (N = 24, as DEB-TACE group) or cTACE (N = 20, as cTACE group) were recruited. Treatment response, hepatic function, and adverse events were assessed or recorded. Besides, progression-free survival (PFS) and overall survival (OS) were calculated. Total treatment response was better in the DEB-TACE group compared with the cTACE group (P = .012). Meanwhile, the objective response rate (87.5% versus 60.0%) was higher (P = .013), while the disease control rate (95.8% versus 85.0%) was similar in the DEB-TACE group compared to the cTACE group (P = .213). Besides, PFS (mean value: 12.2 (95%CI: 9.9-14.6) months versus 7.8 (95%CI: 5.6-10.0) months) (P = .037), but not OS (mean value: 20.0 (95%CI: 18.1-21.9) months versus. 18.6 (95%CI: 15.4-21.8) months) (P = .341) was prolonged in DEB-TACE group compared with cTACE group. Regarding the safety, Child-Pugh stage, albumin level, and bilirubin level after treatment were all similar between the DEB-TACE group and cTACE group (all P > .05); moreover, no difference was found in the occurrence of adverse events during or after treatment between the two groups (all P > .05). Moreover, subsequent analyses found that embolic materials for APF (microspheres) in the DEB-TACE group did not affect the treatment efficacy (all P > .05). DEB-TACE promotes treatment response and PFS compared with cTACE and shows good safety in HCC patients with APF.

Hepatic Arterioportal Fistulas: A Retrospective Analysis of 97 Cases

BACKGROUND AND AIMS

Hepatic arterioportal fistulas (HAPFs) are abnormal shunts or aberrant functional connections between the portal venous and the hepatic arterial systems. Detection of HAPFs has increased with the advances in diagnostic techniques. Presence of HAPFs over a prolonged period can aggravate liver cirrhosis and further deteriorate liver function. However, the underlying causes of HAPFs and the treatment outcomes are now well characterized. This study aimed to summarize the clinical characteristics of patients with HAPFs, and to compare the outcomes of different treatment modalities.

METHODS

Data of 97 patients with HAPFs who were admitted to the Second Xiangya Hospital between January 2010 and January 2020 were retrospectively reviewed. Demographic information, clinical manifestations, underlying causes, treatment options, and short-term outcomes were analyzed.

RESULTS

The main cause of HAPF in our cohort was hepatocellular carcinoma (78/97, 80.41%), followed by cirrhosis (10/97, 10.31%). The main clinical manifestations were abdominal distention and abdominal pain. Treatment methods included transcatheter arterial embolization (n=63, 64.9%), surgery (n=13, 13.4%), and liver transplantation (n=2, 2.1%); nineteen (19.6%) patients received conservative treatment. Among patients who underwent transcatheter arterial embolization, polyvinyl alcohol, lipiodol combined with gelatin sponge, and spring steel ring showed comparable efficacy.

CONCLUSIONS

Hepatocellular carcinoma and cirrhosis are common causes of HAPFs. Transcatheter arterial embolization is a safe and effective method for the treatment of HAPFs, and polyvinyl alcohol, lipiodol combined with gelatin sponge, and spring steel ring showed comparable efficacy in our cohort.

Combination therapy of sorafenib and drug-eluting bead transarterial chemoembolization for advanced hepatocellular carcinoma with and without hepatic arteriovenous shunt

BACKGROUND

To compare the efficacy and safety of combination therapy with sorafenib and drug-eluting bead transarterial chemoembolization (DEB-TACE) in advanced hepatocellular carcinoma (HCC) with or without hepatic arteriovenous shunt (HAVS).

METHODS

This retrospective, single-center study enrolled 59 advanced HCC patients treated with combination therapy, of whom 33 (55.9%) patients had HAVS. Tumor response according to the mRECIST criteria was evaluated based on the CT images 1 month after TACE, and changes in the arterial enhancement ratio (AER) of tumors and portal vein tumor thrombosis were also documented. Time-to-progression (TTP), overall survival (OS), and prognostic factors were analyzed. Safety was evaluated with the incidence of TACE-related complications within 6 weeks after TACE.

RESULTS

The tumor response between the two groups showed no significant difference in the objective response rate (69.2% in the group without HAVS vs 60.6% in the group with HAVS, p = 0.492) or disease control rate (92.3% vs 87.9%, p = 0.685). The two groups showed comparable TTP (4.23 vs 2.33 months, p = 0.235) and OS (12.77 vs 12.97 months, p = 0.910). A drop in the AER of tumors of more than 20% on post-TACE CT independently predicted better OS. With regard to safety, there was no significant difference between the two groups.

CONCLUSION

For advanced HCC, combination therapy had equal efficacy and safety in patients with HAVS compared to those without HAVS, indicating that DEB-TACE is an optional and effective treatment in these patients.

Efficacy and safety of transjugular intrahepatic portosystemic shunt combined with transcatheter embolization/chemoembolization in hepatocellular carcinoma with portal hypertension and arterioportal shunt

OBJECTIVES

This study seeks to assess the efficacy and safety of transjugular intrahepatic portosystemic shunt (TIPS) combined with transarterial embolization/transarterial chemoembolization (TAE/TACE) in hepatocellular carcinoma (HCC) with portal hypertension and arterioportal shunt (APS).

METHODS

Consecutive hospitalized patients having HCC accompanied by portal hypertension and APS were retrospectively analyzed. A total of 103 patients were enrolled. Of them, 26 patients were in Group A and 77 patients were in Group B according to the treatment protocol (Group A: TIPS plus TAE/TACE; Group B: TAE/TACE alone). The clinical outcomes and survival rate were compared between the two groups.

RESULTS

The mean survival time in Group A and Group B were 14 mo and 9.9 mo, respectively, with statistical difference (p = 0.043). The immediate APS improvement rate was 95.2% in Group A and 91.9% in Group B, respectively, with no signficant difference (p = 1.000). However, the first follow-up consultation revealed that APS improvement rate in Group A was more obvious (66.7% vs 27.4%, p = 0.001). Objective response rate of HCC tended to be greater in Group A compared with Group B (65.4% vs 38.7%, p = 0.019). Liver function parameters significantly increased in Group A than those in Group B. After TIPS placement, the mean portal pressure gradient decreased from 32.61 ± 8.87 mmHg to 15.61 ± 8.15 mmHg, with significant difference (p = 0.000). The rate of absorption of ascites and control of variceal bleeding were statistically different between the two groups (p = 0.045 and 0.039, respectively).

CONCLUSION

Our research suggests that TIPS combined with TAE/TACE seems to be safe and efficacious in patients with HCC accompanied by portal hypertension and APS, albeit may be accompanied by liver function damage.

Arterioportal Fistulas (APFs) in Pediatric Patients: Single Center Experience with Interventional Radiological versus Conservative Management and Clinical Outcomes

Arterioportal fistulas (APFs) are uncommon vascular abnormalities with a heterogeneous etiology. In pediatric orthotopic liver transplantation (OLT), APFs are frequently iatrogenic, following percutaneous liver interventions. The aim of this study was to report the 10-year experience of a tertiary referral center for pediatric OLT in the interventional radiological (IR) and conservative management of acquired APFs. A retrospective search was performed to retrieve pediatric patients (<18 years old) with a diagnosis of APF at color Doppler ultrasound (CDUS) or computed tomography angiography (CTA) from 2010 to 2020. Criteria for IR treatment were the presence of hemodynamic alterations at CDUS (resistive index <0.5; portal flow reversal) or clinical manifestations (bleeding; portal hypertension). Conservatively managed patients served as a control population. Clinical and imaging follow-up was analyzed. Twenty-three pediatric patients (median age, 4 years; interquartile range = 11 years; 15 males) with 24 APFs were retrieved. Twenty patients were OLT recipients with acquired APFs (16 iatrogenic). Twelve out of twenty-three patients were managed conservatively. The remaining 11 underwent angiography with confirmation of a shunt in 10, who underwent a total of 16 embolization procedures (14 endovascular; 2 transhepatic). Technical success was reached in 12/16 (75%) procedures. Clinical success was achieved in 8/11 (73%) patients; three clinical failures resulted in one death and two OLTs. After a median follow-up time of 42 months (range 1–107), successfully treated patients showed an improvement in hemodynamic parameters at CDUS. Conservatively managed patients showed a stable persistence of the shunts in six cases, spontaneous resolution in four, reduction in one and mild shunt increase in one. In pediatric patients undergoing liver interventions, APFs should be investigated. Although asymptomatic in most cases, IR treatment of APFs should be considered whenever hemodynamic changes are found at CDUS.

Double-Balloon-Assisted N-Butyl-2-Cyanoacrylate Embolization of Nontumorous Intrahepatic Arterioportal Shunts

This report describes the safety and efficacy of double-balloon-assisted N-butyl-2-cyanoacrylate embolization of nontumorous intrahepatic arterioportal shunts in 5 consecutive, previously untreated patients. A proximal balloon was used for flow control and a coaxial microballoon was used to control the delivery of N-butyl-2-cyanoacrylate. Complete occlusion was achieved in 3 patients and shunt flow decreased in 2 patients, without complications. In the latter 2 patients, pre-embolization shunt flow was lower than that in patients with complete occlusion. Our results suggest that this coaxial double-balloon-assisted technique may be safe and effective for the embolization of nontumorous intrahepatic arterioportal shunts, especially in high-flow shunts.

Safety and efficacy assessment of transarterial chemoembolization using drug-eluting beads in patients with hepatocellular carcinoma and arterioportal shunt: a single-center experience

Objective

To evaluate the feasibility and safety of transarterial chemoembolization with drug-eluting beads (DEB-TACE) in patients with hepatocellular carcinoma (HCC) and arterioportal shunts (APSs).

Materials and methods

Fifty-eight patients with unresectable HCC and APSs who were treated with DEB-TACE (n=26) or polyvinyl alcohol (PVA) plus TACE (PVA-TACE, n=32) were included in this retrospective study. The tumor response was evaluated by the modified Response Evaluation Criteria in Solid Tumors. Toxicity was graded by the Common Terminology Criteria for Adverse Events version 5.0 (CTCAE v5.0) and compared between the two groups. Survival curves were calculated by the Kaplan-Meier method and compared by the log-rank test between the two groups. The influence of potential prognostic factors on survival in the DEB-TACE group was analyzed via a multivariate Cox regression model.

Results

The disease control rate was better in the DEB-TACE group than in the PVA-TACE group. The median survival times were 346 and 274 days in the DEB-TACE group and PVA-TACE group, respectively. There was no significant difference in survival rates between the two groups (P=0.081). Patients treated with DEB-TACE were significantly less likely to have fever (P=0.048) or a low-grade (grade 1-2) increase in transaminases (P=0.046) than the patients treated with PVA-TACE. The potential predictive prognostic factors in the DEB-TACE group were tumor response, APS grading, and serum bilirubin.

Conclusion

DEB-TACE may be feasible and safe in HCC patients with APS. Survival in the DEB-TACE group was associated with tumor response, APS grading, and serum bilirubin levels.

Chemoembolisation with polyvinyl alcohol for advanced hepatocellular carcinoma with portal vein tumour thrombosis and arterioportal shunts: efficacy and prognostic factors

AIM

To evaluate the efficacy and to identify prognostic factors of polyvinyl alcohol (PVA) chemoembolisation for treating advanced hepatocellular carcinoma (HCC) with portal vein (PV) tumour thrombosis (PVTT) and arterioportal shunts.

MATERIALS AND METHODS

The clinical data of 145 advanced HCC patients with PVTT and arterioportal shunts were collected. The patients were divided into two groups: group A, with main PV invasion, (n=56) and group B, with PV branch invasion, (n=89). Based on arterioportal shunt types, different particle sizes of PVA were used for chemoembolisation. The overall survival (OS), time to progression (TTP), and postoperative complications were analysed retrospectively.

RESULTS

The median OS of all patients was 10.1 months. The median OS of group A and group B was 8.2 and 12.5 months, respectively (χ²=6.03, p=0.01). The overall 6-, 12-, and 18-month survival rates of groups A and B were 63.8%, 24.9%, and 6.3%, and 78.1%, 55.2%, and 23.7%, respectively. After embolisation, there were two cases of acute liver failure and three cases of upper gastrointestinal bleeding. Cox multivariate survival analysis revealed that main PVTT (HR [hazard ratio]=1.75, p=0.01), Child-Pugh B class (HR=1.99, p=0.003) and tumour burden ≥50% (HR=3.25, p<0.001) were independent risk factors. A dose of oxaliplatin >100 mg (HR=0.48, p<0.001) was an independent protection factor.

CONCLUSION

Treatment of advanced HCC with PVTT and arterioportal shunts by PVA chemoembolisation is safe and effective. The patients achieved a better prognosis with the dose of oxaliplatin >100 mg, while main PVTT, Child-Pugh B class, and tumour burden ≥50% were poor prognostic indicators.

Novel treatment strategy for advanced hepatocellular carcinoma: combination of conventional transcatheter arterial chemoembolization and modified method with portal vein occlusion for cases with arterioportal shunt: a preliminary study

Background A novel strategy to combine conventional transcatheter arterial chemoembolization (TACE) and TACE during portal vein occlusion (TACE-PVO) in the presence of high-flow arterioportal shunt (APS) has been developed to treat hepatocellular carcinoma (HCC) with portal invasion. Purpose To evaluate the efficacy of this strategy. Material and Methods Twenty-five cases of HCC with portal invasion, treated between April 2006 and December 2015, were evaluated. Balloon occlusion of the portal venous outlet was performed in eight cases of high-flow APS when performing TACE. Conventional TACE was performed in the other 17 cases. The primary endpoint was overall survival. Adverse events and deterioration of liver function were also evaluated. Results The median survival time (MST) was 12 months. One-, two-, and three-year survival rates were 48.0%, 39.3%, and 26.2%, respectively. Subgroup analysis and multivariate analysis revealed the CLIP score as prognostic factor. MST was 2.5 months in the subgroup with CLIP score ≥4 and 26.0 months in the subgroup with CLIP score ≤3 (hazard ratio = 7.7, 95% confidence interval = 2.3-25.8). Transient elevations of the levels of transaminase and bilirubin were observed; however, deterioration of liver function was infrequent; upgrading of Child-Pugh class in 9.1% of cases. Conclusion A novel strategy, combining conventional TACE and TACE-PVO, is effective for HCC with portal invasion. The CLIP score may be useful for considering treatment indication.

Balloon-Assisted Chemoembolization Using a Micro-Balloon Catheter Alongside a Microcatheter for a Hepatocellular Carcinoma with a Prominent Arterioportal Shunt: A Case Report

Although transcatheter arterial chemoembolization is one of the established treatments for hepatocellular carcinoma (HCC), it is difficult to treat HCCs with prominent arterioportal (AP) shunts because anticancer drugs and embolic materials migrate into the non-tumorous liver through the AP shunts and may cause liver infarction. We developed a novel method of balloon-assisted chemoembolization using a micro-balloon catheter alongside a microcatheter simultaneously inserted through a single 4.5-Fr guiding sheath, comprising proximal chemoembolization with distal arterial balloon occlusion. We applied this method to treat an HCC with a prominent distal AP shunt induced by previous proton beam therapy and achieved successful chemoembolization without non-tumorous liver infarction under temporal balloon occlusion of a distal AP shunt.

Polyvinyl alcohol terminal chemoembolization for hepatocellular carcinoma with hepatic arteriovenous shunts: Safety, efficacy, and prognostic factors

PURPOSE

To evaluate the safety and efficacy of polyvinyl alcohol (PVA) terminal chemoembolization and to identify the prognostic factors associated with survival in hepatocellular carcinoma (HCC) patients with hepatic arteriovenous shunts (HAVS).

MATERIALS AND METHODS

Of 133 patients' managements were retrospectively analyzed. HAVS was classified into three types: slow-flow, intermediate-flow and high-flow. The size of the PVA used was determined following the scheme: slow-flow HAVS: 300-500μm PVA; intermediate-flow HAVS: 500-710μm PVA; high-flow HAVS: 710-1000μm PVA. The HCCs with slow-flow and intermediate-flow HAVS were embolized by PVA plus chemotherapeutic agents lipiodol emulsion, while the high-flow HAVS were treated by PVA with chemotherapeutic agents. Survival curves were calculated by Kaplan-Meier method and compared by log-rank test. The influence of possible prognostic factors on survival were analyzed by multivariate Cox proportional-hazards method.

RESULTS

The median overall survival (OS) of 133 patients was 9.1 months. The median OS of the slow-flow type, intermediate-flow type and high-flow type patients were 10.8, 9.1 and 7.3 months, respectively. There was no statistically significant difference among different HAVS types (P=0.239). The 30-day mortality was 3.8%. Cox multivariate survival analysis revealed that initial preoperative AFP value≥400ng/ml (HR=2.105, P=0.006) was an independent risk factor. While multiple embolization (HR=0.482, P=0.011), tumor remission (HR=0.431, P=0.041) and multimodality therapy (HR=0.416, P=0.004) were independent protection factors.

CONCLUSION

It is safe and effective for HCCs with HAVS treated by terminal chemoembolization therapy with PVA plus chemotherapeutic agents lipiodol emulsion (or PVA plus chemotherapeutic agents). The HCCs with HAVS achieves good prognosis with multiple embolization, tumor remission and multimodality therapy, while achieves poor prognosis with inital preoperative high AFP value (≥400ng/ml).

Chemoembolization of recurrent hepatoma after curative resection: prognostic factors

OBJECTIVE

The long-term prognosis after hepatic resection for the treatment of hepatocellular carcinoma (HCC) has been disappointing because of the high recurrence rates in the remnant liver, which constitutes the major cause of death. The purpose of this study was to identify the prognostic factors for overall survival after transarterial chemoembolization (TACE) in recurrent HCC after the initial curative surgical resection.

MATERIALS AND METHODS

From January 2003 through October 2012, 362 patients who developed recurrent HCC after initial surgical resection and underwent TACE as the first-line therapy were retrospectively studied at a single institution in our hospital. Patients who met our inclusion criteria were followed until December 2012. Prognostic factors for overall survival were analyzed.

RESULTS

In total, 287 patients were enrolled. The median overall survival period was 747 days. The 1-, 2-, and 3-year overall survival rates after TACE were 72.9%, 51.8%, and 31.8%, respectively. Multivariate analysis indicated that the number of resected HCCs (≥ 2, p < 0.001), the number (≥ 2, p < 0.001) and size (> 5 cm, p = 0.022) of the recurrent HCCs, and the number of TACE sessions (≤ 3, p < 0.001) are independent risk factors for poor survival after TACE for recurrent HCC after HCC resection.

CONCLUSION

TACE appears to be an effective treatment of patients who experienced a recurrence after curative HCC resection. An initial solitary HCC, a solitary recurrence, and recurrent tumor mass 5 cm or smaller are statistically significant independent prognostic factors for survival.

Transcatheter Arterial Chemoembolization and Chemotherapy plus Sorafenib in a Large Hepatocellular Carcinoma with Arterioportal Shunt

Introduction. Arterioportal shunts (APS) are sometimes encountered in patients with hepatocellular carcinoma (HCC) and associated with poor prognosis. The management of HCC with APS is a challenge so far. Case Presentations. We report here in detail a 37-year-old man who was diagnosed as an advanced HCC accompanied with severe APS and treated by two sessions of transcatheter arterial chemoembolization (TACE) and three sessions of transcatheter arterial chemotherapy (TAC) plus sorafenib therapy. The tumor shrinks were revealed continuously during 152 days after the diagnosis. Although tumor progress emerged at 209 days after the diagnosis, the patient remarkably achieved 366-day survival. Discussion. TACE plus sorafenib may be a promising treatment for advanced HCC accompanied with APS. Prospective case-control studies should be advocated to evaluate the combination of TACE, TAC, and sorafenib in the management of HCC with APS.