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Soon GS, Yasir S, Wu TT, Welle C, Venkatesh SK, Torbenson MS, Chen ZE. Unique Morphologic Findings in the Liver After Stereotactic Radiation for Cholangiocarcinoma. Am J Surg Pathol 2023; 47:792-800. [PMID: 37204143 PMCID: PMC10330188 DOI: 10.1097/pas.0000000000002052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Newer radiotherapy techniques, such as stereotactic body radiation, have been increasingly used as part of the treatment of cholangiocarcinomas, particularly as a bridge to liver transplantation. Although conformal, these high-dose therapies result in tissue injury in the peritumoral liver tissue. This retrospective study characterized the morphologic changes in the liver after stereotactic body radiation in a series of liver explant specimens with perihilar cholangiocarcinoma. The morphologic changes in the irradiated zone were compared against the nonirradiated background liver parenchyma to control for chemotherapy-related changes. Of the 21 cases studied, 16 patients (76.2%) had underlying primary sclerosing cholangitis, and 13 patients (61.9%) had advanced liver fibrosis. The average duration between completion of radiotherapy and liver transplantation was 33.4 weeks (range: 6.29 to 67.7). Twelve patients (57.1%) had no residual tumor in the liver. The most frequent histologic changes in the peritumoral irradiated liver tissue were sinusoidal congestion (100%), sinusoidal edematous stroma (100%), and hepatocellular atrophy (100%), followed by partial/complete occlusion of central veins (76.2%), sinusoidal cellular infiltrates (76.2%), and hepatocyte dropout (66.7%). The findings in the radiated areas were more extensive than in the background liver ( P <0.01). Sinusoidal edematous stroma was striking and dominated the histologic findings in some cases. Over time, there was less sinusoidal congestion but more hepatocyte dropout (r s =-0.54, P =0.012 and r s =0.64, P =0.002, respectively). Uncommon findings, such as foam cell arteriopathy in the liver hilum, were also observed. In summary, postradiation liver specimens have distinctive morphologic findings.
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Affiliation(s)
| | - Saba Yasir
- Division of Anatomic Pathology, Mayo Clinic, Rochester, Minnesota, USA
| | - Tsung-Teh Wu
- Division of Anatomic Pathology, Mayo Clinic, Rochester, Minnesota, USA
| | - Christopher Welle
- Division of Anatomic Radiology, Mayo Clinic, Rochester, Minnesota, USA
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Owen M, Makary MS, Beal EW. Locoregional Therapy for Intrahepatic Cholangiocarcinoma. Cancers (Basel) 2023; 15:cancers15082384. [PMID: 37190311 DOI: 10.3390/cancers15082384] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 04/08/2023] [Accepted: 04/18/2023] [Indexed: 05/17/2023] Open
Abstract
Intrahepatic cholangiocarcinoma (ICC) has a poor prognosis, and surgical resection (SR) offers the only potential for cure. Unfortunately, only a small proportion of patients are eligible for resection due to locally advanced or metastatic disease. Locoregional therapies (LRT) are often used in unresectable liver-only or liver-dominant ICC. This review explores the role of these therapies in the treatment of ICC, including radiofrequency ablation (RFA), microwave ablation (MWA), transarterial chemoembolization (TACE), transarterial radioembolization (TARE), external beam radiotherapy (EBRT), stereotactic body radiotherapy (SBRT), hepatic arterial infusion (HAI) of chemotherapy, irreversible electroporation (IE), and brachytherapy. A search of the current literature was performed to examine types of LRT currently used in the treatment of ICC. We examined patient selection, technique, and outcomes of each type. Overall, LRTs are well-tolerated in the treatment of ICC and are effective in improving overall survival (OS) in this patient population. Further studies are needed to reduce bias from heterogenous patient populations and small sample sizes, as well as to determine whether certain LRTs are superior to others and to examine optimal treatment selection.
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Affiliation(s)
- Mackenzie Owen
- The Ohio State University College of Medicine, Columbus, OH 43210, USA
| | - Mina S Makary
- Division of Vascular and Interventional Radiology, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
| | - Eliza W Beal
- Departments of Surgery and Oncology, Barbara Ann Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, MI 48201, USA
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Mo A, Velten C, Jiang JM, Tang J, Ohri N, Kalnicki S, Mirhaji P, Nemoto K, Aasman B, Garg M, Guha C, Brodin NP, Kabarriti R. Improving Adjuvant Liver-Directed Treatment Recommendations for Unresectable Hepatocellular Carcinoma: An Artificial Intelligence-Based Decision-Making Tool. JCO Clin Cancer Inform 2022; 6:e2200024. [PMID: 35671414 PMCID: PMC9225499 DOI: 10.1200/cci.22.00024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
PURPOSE Liver-directed therapy after transarterial chemoembolization (TACE) can lead to improvement in survival for selected patients with unresectable hepatocellular carcinoma (HCC). However, there is uncertainty in the appropriate application and modality of therapy in current clinical practice guidelines. The aim of this study was to develop a proof-of-concept, machine learning (ML) model for treatment recommendation in patients previously treated with TACE and select patients who might benefit from additional treatment with combination stereotactic body radiotherapy (SBRT) or radiofrequency ablation (RFA). METHODS This retrospective observational study was based on data from an urban, academic hospital system selecting for patients diagnosed with stage I-III HCC from January 1, 2008, to December 31, 2018, treated with TACE, followed by adjuvant RFA, SBRT, or no additional liver-directed modality. A feedforward, ML ensemble model provided a treatment recommendation on the basis of pairwise assessments evaluating each potential treatment option and estimated benefit in survival. RESULTS Two hundred thirty-seven patients met inclusion criteria, of whom 54 (23%) and 49 (21%) received combination of TACE and SBRT or TACE and RFA, respectively. The ML model suggested a different consolidative modality in 32.7% of cases among patients who had previously received combination treatment. Patients treated in concordance with model recommendations had significant improvement in progression-free survival (hazard ratio 0.5; P = .007). The most important features for model prediction were cause of cirrhosis, stage of disease, and albumin-bilirubin grade (a measure of liver function). CONCLUSION In this proof-of-concept study, an ensemble ML model was able to provide treatment recommendations for HCC who had undergone prior TACE. Additional treatment in line with model recommendations was associated with significant improvement in progression-free survival, suggesting a potential benefit for ML-guided medical decision making.
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Affiliation(s)
- Allen Mo
- Department of Radiation Oncology, Montefiore Medical Center and Albert Einstein College of Medicine, Bronx, NY
| | - Christian Velten
- Department of Radiation Oncology, Montefiore Medical Center and Albert Einstein College of Medicine, Bronx, NY.,Institute for Onco-Physics, Montefiore Medical Center and Albert Einstein College of Medicine, Bronx, NY
| | - Julie M Jiang
- Department of Radiation Oncology, Montefiore Medical Center and Albert Einstein College of Medicine, Bronx, NY
| | - Justin Tang
- Department of Radiation Oncology, Montefiore Medical Center and Albert Einstein College of Medicine, Bronx, NY
| | - Nitin Ohri
- Department of Radiation Oncology, Montefiore Medical Center and Albert Einstein College of Medicine, Bronx, NY
| | - Shalom Kalnicki
- Department of Radiation Oncology, Montefiore Medical Center and Albert Einstein College of Medicine, Bronx, NY
| | - Parsa Mirhaji
- Department of Systems & Computational Biology, Montefiore Medical Center and Albert Einstein College of Medicine, Bronx, NY.,Center for Health Data Innovation, Montefiore Medical Center and Albert Einstein College of Medicine, Bronx, NY
| | - Kei Nemoto
- Center for Health Data Innovation, Montefiore Medical Center and Albert Einstein College of Medicine, Bronx, NY
| | - Boudewijn Aasman
- Center for Health Data Innovation, Montefiore Medical Center and Albert Einstein College of Medicine, Bronx, NY
| | - Madhur Garg
- Department of Radiation Oncology, Montefiore Medical Center and Albert Einstein College of Medicine, Bronx, NY
| | - Chandan Guha
- Department of Radiation Oncology, Montefiore Medical Center and Albert Einstein College of Medicine, Bronx, NY.,Institute for Onco-Physics, Montefiore Medical Center and Albert Einstein College of Medicine, Bronx, NY
| | - N Patrik Brodin
- Department of Radiation Oncology, Montefiore Medical Center and Albert Einstein College of Medicine, Bronx, NY.,Institute for Onco-Physics, Montefiore Medical Center and Albert Einstein College of Medicine, Bronx, NY
| | - Rafi Kabarriti
- Department of Radiation Oncology, Montefiore Medical Center and Albert Einstein College of Medicine, Bronx, NY
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Papamichail M, Pizanias M, Heaton ND, M P, M P, Nd H. Minimizing the risk of small-for-size syndrome after liver surgery. Hepatobiliary Pancreat Dis Int 2022; 21:113-133. [PMID: 34961675 DOI: 10.1016/j.hbpd.2021.12.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 12/06/2021] [Indexed: 02/05/2023]
Abstract
BACKGROUND Primary and secondary liver tumors are not always amenable to resection due to location and size. Inadequate future liver remnant (FLR) may prevent patients from having a curative resection or may result in increased postoperative morbidity and mortality from complications related to small-for-size syndrome (SFSS). DATA SOURCES This comprehensive review analyzed the principles, mechanism and risk factors associated with SFSS and presented current available options in the evaluation of FLR when planning liver surgery. In addition, it provided a detailed description of specific modalities that can be used before, during or after surgery, in order to optimize the conditions for a safe resection and minimize the risk of SFSS. RESULTS Several methods which aim to reduce tumor burden, preserve healthy liver parenchyma, induce hypertrophy of FLR or prevent postoperative complications help minimize the risk of SFSS. CONCLUSIONS With those techniques the indications of radical treatment for patients with liver tumors have significantly expanded. The successful outcome depends on appropriate patient selection, the individualization and modification of interventions and the right timing of surgery.
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Affiliation(s)
- Michail Papamichail
- Department of Hepato-Pancreato-Biliary Surgery, Royal Blackburn Hospital, Blackburn BB2 3HH, UK.
| | - Michail Pizanias
- Department of General Surgery, Whittington Hospital, London N19 5NF, UK
| | - Nigel D Heaton
- Department of Liver Transplant and Hepato-Pancreato-Biliary Surgery, Institute of Liver Studies, Kings Health Partners at King's College Hospital NHS Trust, London SE5 9RS, UK
| | - Papamichail M
- Department of Hepato-Pancreato-Biliary Surgery, Royal Blackburn Hospital, Blackburn BB2 3HH, UK; Department of General Surgery, Whittington Hospital, London N19 5NF, UK; Department of Liver Transplant and Hepato-Pancreato-Biliary Surgery, Institute of Liver Studies, Kings Health Partners at King's College Hospital NHS Trust, London SE5 9RS, UK
| | - Pizanias M
- Department of Hepato-Pancreato-Biliary Surgery, Royal Blackburn Hospital, Blackburn BB2 3HH, UK; Department of General Surgery, Whittington Hospital, London N19 5NF, UK; Department of Liver Transplant and Hepato-Pancreato-Biliary Surgery, Institute of Liver Studies, Kings Health Partners at King's College Hospital NHS Trust, London SE5 9RS, UK
| | - Heaton Nd
- Department of Hepato-Pancreato-Biliary Surgery, Royal Blackburn Hospital, Blackburn BB2 3HH, UK; Department of General Surgery, Whittington Hospital, London N19 5NF, UK; Department of Liver Transplant and Hepato-Pancreato-Biliary Surgery, Institute of Liver Studies, Kings Health Partners at King's College Hospital NHS Trust, London SE5 9RS, UK
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Thuehøj AU, Andersen NC, Worm ES, Høyer M, Tabaksblat EM, Weber B, Mortensen HR. Clinical outcomes after stereotactic ablative radiotherapy in locally advanced cholangiocarcinoma. Acta Oncol 2022; 61:197-201. [PMID: 34726565 DOI: 10.1080/0284186x.2021.1995893] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
| | | | - Esben Schjødt Worm
- Department of Medical Physics, Aarhus University Hospital, Aarhus, Denmark
| | - Morten Høyer
- Danish Centre of Particle Therapy, Aarhus University Hospital, Aarhus, Denmark
| | | | - Britta Weber
- Department of Oncology, Aarhus University Hospital, Aarhus, Denmark
- Danish Centre of Particle Therapy, Aarhus University Hospital, Aarhus, Denmark
| | - Hanna Rahbek Mortensen
- Department of Oncology, Aarhus University Hospital, Aarhus, Denmark
- Danish Centre of Particle Therapy, Aarhus University Hospital, Aarhus, Denmark
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Chen WY, Kong CL, Meng MM, Chen WQ, Zheng LY, Mao JT, Fang SJ, Chen L, Shu GF, Yang Y, Weng QY, Chen MJ, Xu M, Ji JS. Percutaneous biliary stent combined with brachytherapy using 125I seeds for treatment of unresectable malignant obstructive jaundice: A meta-analysis. World J Clin Cases 2021; 9:10979-10993. [PMID: 35047608 PMCID: PMC8678863 DOI: 10.12998/wjcc.v9.i35.10979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 08/03/2021] [Accepted: 11/04/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Malignant obstructive jaundice (MOJ) is a common pathologic manifestation of malignant biliary obstruction. Recently, several clinical trials have explored the clinical effectiveness of intraluminal 125I seed-based brachytherapy for MOJ patients, and various outcomes have been reported.
AIM To assess the efficacy and safety of percutaneous biliary stents with 125I seeds compared to conventional metal stents in patients with unresectable MOJ.
METHODS A systematic search of English-language databases (PubMed, Embase, Cochrane Library, and Web of Science) was performed to identify studies published prior to June 2020 that compared stents with or without 125I seeds in the treatment of unresectable MOJ. The outcomes analyzed included primary outcomes (stent patency and overall survival) and secondary outcomes (complications and liver function parameters).
RESULTS Six randomized controlled trials and four retrospective studies involving 875 patients were eligible for the analysis. Of the 875 included patients, 404 were treated with 125I seed stents, while 471 were treated with conventional stents. Unadjusted pooled analysis demonstrated that compared to conventional stents, 125I seed stents extended the stent patency time [hazard ratio (HR) = 0.36, 95% confidence interval (CI) = 0.28-0.45, P < 0.0001] and overall survival period (HR = 0.52, 95%CI = 0.42–0.64, P < 0.00001). Subgroup analyses based on the type of 125I seed stent and type of study design showed consistent results. However, there were no significant differences in the occurrence of total complications [odds ratio (OR) = 1.12, 95%CI = 0.75-1.67, P = 0.57], hemobilia (OR = 1.02, 95%CI = 0.45-2.3, P = 0.96), pancreatitis (OR = 1.79, 95%CI = 0.42-7.53, P = 0.43), cholangitis (OR = 1.13, 95%CI = 0.60-2.13, P = 0.71), or pain (OR = 0.67, 95%CI = 0.22-2, P = 0.47). In addition, there were no reductions in the levels of serum indices, including total bilirubin [mean difference (MD) = 10.96, 95%CI = -3.56-25.49, P = 0.14], direct bilirubin (MD = 7.37, 95%CI = -9.76-24.5, P = 0.4), alanine aminotransferase (MD = 7.52, 95%CI = -0.71-15.74, P = 0.07), and aspartate aminotransferase (MD = -4.77, 95%CI = -19.98-10.44, P = 0.54), after treatment. Publication bias was detected regarding the outcome overall survival; however, the conclusions were not changed after the adjustment.
CONCLUSION Placement of stents combined with brachytherapy using 125I seeds contributes to a longer stent patency and higher overall survival than placement of conventional stents without extra complications or severe liver damage. Thus, it can be considered an effective and safe treatment for unresectable MOJ.
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Affiliation(s)
- Wei-Yue Chen
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research/Department of Radiology, Lishui Hospital of Zhejiang University, Lishui 323000, Zhejiang Province, China
| | - Chun-Li Kong
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research/Department of Radiology, Lishui Hospital of Zhejiang University, Lishui 323000, Zhejiang Province, China
| | - Miao-Miao Meng
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research/Department of Radiology, Lishui Hospital of Zhejiang University, Lishui 323000, Zhejiang Province, China
| | - Wei-Qian Chen
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research/Department of Radiology, Lishui Hospital of Zhejiang University, Lishui 323000, Zhejiang Province, China
| | - Li-Yun Zheng
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research/Department of Radiology, Lishui Hospital of Zhejiang University, Lishui 323000, Zhejiang Province, China
| | - Jian-Ting Mao
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research/Department of Radiology, Lishui Hospital of Zhejiang University, Lishui 323000, Zhejiang Province, China
| | - Shi-Ji Fang
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research/Department of Radiology, Lishui Hospital of Zhejiang University, Lishui 323000, Zhejiang Province, China
| | - Li Chen
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research/Department of Radiology, Lishui Hospital of Zhejiang University, Lishui 323000, Zhejiang Province, China
| | - Gao-Feng Shu
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research/Department of Radiology, Lishui Hospital of Zhejiang University, Lishui 323000, Zhejiang Province, China
| | - Yang Yang
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research/Department of Radiology, Lishui Hospital of Zhejiang University, Lishui 323000, Zhejiang Province, China
| | - Qiao-You Weng
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research/Department of Radiology, Lishui Hospital of Zhejiang University, Lishui 323000, Zhejiang Province, China
| | - Min-Jiang Chen
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research/Department of Radiology, Lishui Hospital of Zhejiang University, Lishui 323000, Zhejiang Province, China
| | - Min Xu
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research/Department of Radiology, Lishui Hospital of Zhejiang University, Lishui 323000, Zhejiang Province, China
| | - Jian-Song Ji
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research/Department of Radiology, Lishui Hospital of Zhejiang University, Lishui 323000, Zhejiang Province, China
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