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Zhou J, Dong G, Jing X, Huang G, Wang Z, Peng M, Zhou Y, Yu X, Yu J, Han Z, Liu F, Gao H, Zhang Y, Cheng Z, Ye X, Liang P. Image-guided percutaneous microwave ablation for unresectable pancreatic cancers: A multicenter retrospective study. Eur J Radiol 2024; 181:111720. [PMID: 39326234 DOI: 10.1016/j.ejrad.2024.111720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2024] [Revised: 07/22/2024] [Accepted: 09/02/2024] [Indexed: 09/28/2024]
Abstract
OBJECTIVE This study aims to assess the feasibility, effectiveness, and safety of image-guided percutaneous microwave ablation (PMWA) for unresectable pancreatic cancer. METHODS In this retrospective study, 72 patients from four hospitals were enrolled between November 2009 and October 2022. Descriptive statistics were employed to describe the patients' characteristics and prognostic factors. The primary endpoint compassed the complete ablation rate (CAR), incidence of complications and the pain relief rate (PRR). RESULTS The median age of the 72 patients was 61 (interquartile range (IQR) 52.5-67.0) years, with 62.5 % (45/72) being male. 26 cases received computed tomography (CT) guidance; 46 cases received ultrasound guidance. A total of 74 tumors were identified (2 in 2 patients), with 56.8 % (42/74) at the body and tail, and the rest at the head and neck. Overall, 73 ablation sessions were carried out, achieving a technical success rate (TSR) of 100 %. The CAR was 40.5 % (30/74). The median follow-up time was 4.6 (1-43.4) months. 50 % (36/72) of patients had died with a median overall survival (OS) of 5.6 (1-27) months. Regarding complications, 18.1 % (13/72) of cases were classified as grade I and II, and 9.8 % (7/72) as grade IIIa. Before surgery, 33 patients experienced pain symptoms, and the postoperative PRR was 96.7 % (32/33). The average pain score decreased from 6.3 (4-10) before surgery to 2.0 (0-8) after ablation (P<0.001). CONCLUSIONS Image-guided PMWA for unresectable pancreatic cancer is safe and feasible, effectively relieving cancer pain and improving patients' the quality of life.
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Affiliation(s)
- Jie Zhou
- Department of Interventional Ultrasound, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China 100853; Chinese PLA Medical School, Beijing, China
| | - Gang Dong
- Department of Ultrasound, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China 450000
| | - Xiang Jing
- Department of Ultrasound, Tianjin Third Central Hospital, Tianjin, China
| | - Guanghui Huang
- Department of Oncology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China 250021
| | - Zhen Wang
- Department of Interventional Ultrasound, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China 100853
| | - Mengfan Peng
- Department of Ultrasound, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China 450000
| | - Yan Zhou
- Department of Ultrasound, Tianjin Third Central Hospital, Tianjin, China
| | - Xiaoling Yu
- Department of Interventional Ultrasound, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China 100853
| | - Jie Yu
- Department of Interventional Ultrasound, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China 100853
| | - Zhiyu Han
- Department of Interventional Ultrasound, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China 100853
| | - Fangyi Liu
- Department of Interventional Ultrasound, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China 100853
| | - Hongjian Gao
- Faculty of Environmental and Life Sciences, Beijing University of Technology, Beijing 100124, China
| | - Yubo Zhang
- Faculty of Environmental and Life Sciences, Beijing University of Technology, Beijing 100124, China
| | - Zhigang Cheng
- Department of Interventional Ultrasound, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China 100853.
| | - Xin Ye
- Department of Oncology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Shandong Lung Cancer Institute, Jinan, China 250014.
| | - Ping Liang
- Department of Interventional Ultrasound, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China 100853.
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Zhang Y, Gao H, He H, Liu J, Xu F, Wu S, Zhou J, Cheng Z. Microwave ablation on ex vivo porcine pancreas: The influence of ablation parameters on ablation results and fat liquefaction. Proc Inst Mech Eng H 2024; 238:814-826. [PMID: 39045922 DOI: 10.1177/09544119241261891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/25/2024]
Abstract
The pancreas is adjacent to critical organs; excessive microwave ablation (MWA) can result in serious complications. The purpose of this paper is to provide the reference data of pancreas MWA for clinicians, analyze the ablation outcomes under different ablation parameters, and determine the critical temperature of pancreatic surface fat liquefaction outflow. Combinations of two power levels (30 W and 55 W), three antenna diameters (1.3 mm, 1.6 mm, and 1.9 mm), and three ablation times (1 min, 1.5 min, and 2 min) were applied to an ex vivo pig pancreas. Temperature measurements were taken at four thermocouple points. The center point is located 5 mm horizontally from the antenna slot, with a temperature measurement point located 5 mm above, below, and to the right of the center point. Main effect analysis and variance analysis were used to quantify the influences of each factor on the ablation outcomes. At 30 W, the antenna diameter contributing the most at 48.5%. At 30 W-1.3 mm-1 min, the spherical index (1.41) is closest to 1. At 55 W, the coagulation zone size was almost only affected by the ablation time, with a contribution rate of 28.7%, the temperature at point C exceeds point B. On the surface of the ex vivo porcine pancreas, the fat outflow temperature was 54ã. Ablation combinations with low power, short duration, and small antenna diameter results in a more nearly spherical coagulation zone. When performing MWA on the pancreas, it is advisable to avoid areas with higher fat content, while keeping the pancreatic surface temperature below 54°C.
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Affiliation(s)
- Yubo Zhang
- Faculty of Environmental and Life Sciences, Beijing University of Technology, Beijing, China
| | - Hongjian Gao
- Faculty of Environmental and Life Sciences, Beijing University of Technology, Beijing, China
| | - Huijing He
- Faculty of Environmental and Life Sciences, Beijing University of Technology, Beijing, China
| | - Ju Liu
- Faculty of Environmental and Life Sciences, Beijing University of Technology, Beijing, China
| | - Fan Xu
- Faculty of Environmental and Life Sciences, Beijing University of Technology, Beijing, China
| | - Shuicai Wu
- Faculty of Environmental and Life Sciences, Beijing University of Technology, Beijing, China
| | - Jie Zhou
- Interventional Ultrasound Department, Chinese PLA General Hospital, Beijing, China
| | - Zhigang Cheng
- Interventional Ultrasound Department, Chinese PLA General Hospital, Beijing, China
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Erdem S, Narayanan JS, Worni M, Bolli M, White RR. Local ablative therapies and the effect on antitumor immune responses in pancreatic cancer - A review. Heliyon 2024; 10:e23551. [PMID: 38187292 PMCID: PMC10767140 DOI: 10.1016/j.heliyon.2023.e23551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Revised: 12/05/2023] [Accepted: 12/06/2023] [Indexed: 01/09/2024] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is a devastating disease, projected to rank as the second most prevalent cause of cancer-related mortality by 2030. Despite significant progress in advances in surgical techniques and chemotherapy protocols, the overall survival (OS) remains to be less than 10 % for all stages combined. In recent years, local ablative techniques have been introduced and utilized as additional therapeutic approaches for locally advanced pancreatic cancer (LAPC), with promising results with respect to local tumor control and OS. In addition to successful cytoreduction, there is emerging evidence that local ablation induces antitumor immune activity that could prevent or even treat distant metastatic tumors. The enhancement of antitumor immune responses could potentially make ablative therapy a therapeutic option for the treatment of metastatic PDAC. In this review, we summarize current ablative techniques used in the management of LAPC and their impact on systemic immune responses.
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Affiliation(s)
- Suna Erdem
- Moores Cancer Center, University of California San Diego, CA, USA
- Clarunis, Department of Visceral Surgery, University Centre for Gastrointestinal and Liver Diseases, St. Clara Hospital and University Hospital Basel, Basel, Switzerland
| | | | - Mathias Worni
- Department of Surgery, Hirslanden Clinic Beau Site, Bern, Switzerland
- Department of Surgery, Duke University Switzerland
- Clarunis, Department of Visceral Surgery, University Centre for Gastrointestinal and Liver Diseases, St. Clara Hospital and University Hospital Basel, Basel, Switzerland
- Medical Center, Duke University, Durham, NC, USA
- Swiss Institute for Translational and Entrepreneurial Medicine, Stiftung Lindenhof, Campus SLB, Bern, Switzerland
| | - Martin Bolli
- Clarunis, Department of Visceral Surgery, University Centre for Gastrointestinal and Liver Diseases, St. Clara Hospital and University Hospital Basel, Basel, Switzerland
| | - Rebekah R. White
- Moores Cancer Center, University of California San Diego, CA, USA
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Ardeshna DR, Leupold M, Cruz-Monserrate Z, Pawlik TM, Cloyd JM, Ejaz A, Shah H, Burlen J, Krishna SG. Advancements in Microwave Ablation Techniques for Managing Pancreatic Lesions. Life (Basel) 2023; 13:2162. [PMID: 38004302 PMCID: PMC10672411 DOI: 10.3390/life13112162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 10/26/2023] [Accepted: 10/31/2023] [Indexed: 11/26/2023] Open
Abstract
Thermal ablation, including microwave ablation, has become increasingly important in the management of many solid tumors, including primary and metastatic tumors of the liver, kidney, and lung. However, its adoption to treat pancreatic lesions has been slowed due to concerns about potential adverse events. The success of radiofrequency ablation (RFA) in inoperable pancreatic cancers paved the way for its use in pancreatic neuroendocrine tumors and pancreatic cystic neoplasms (PCLs). In the last decade, other thermal ablation techniques, like microwave ablation, have emerged as alternatives to RFA. Microwaves, with frequencies ranging from 900 to 2450 MHz, generate heat by rapidly oscillating water molecules. Microwave ablation's advantage lies in its ability to achieve higher intra-lesion temperatures and uniform heating compared with RFA. Microwave ablation's application in pancreatic cancer and pancreatic neuroendocrine tumors has demonstrated promise with similar technical success to RFA. Yet, concern for peri-procedure complications, as well as a dearth of studies comparing RFA and microwave ablation, emphasize the need for further research. No studies have evaluated microwave ablation in PCLs. We herein review thermal ablation's potential to treat pancreatic lesions.
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Affiliation(s)
- Devarshi R. Ardeshna
- Division of Gastroenterology, Hepatology and Nutrition, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
| | - Matthew Leupold
- Department of Internal Medicine, Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
| | - Zobeida Cruz-Monserrate
- Division of Gastroenterology, Hepatology and Nutrition, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
- The James Comprehensive Cancer Center, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
| | - Timothy M. Pawlik
- The James Comprehensive Cancer Center, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
- Department of Surgery, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
| | - Jordan M. Cloyd
- The James Comprehensive Cancer Center, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
- Department of Surgery, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
| | - Aslam Ejaz
- The James Comprehensive Cancer Center, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
- Department of Surgery, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
| | - Hamza Shah
- The James Comprehensive Cancer Center, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
| | - Jordan Burlen
- The James Comprehensive Cancer Center, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
| | - Somashekar G. Krishna
- Division of Gastroenterology, Hepatology and Nutrition, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
- The James Comprehensive Cancer Center, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
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5
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Ma Y, Xing Y, Li H, Yuan T, Liang B, Li R, Li J, Li Z, Li S, Niu L. Irreversible electroporation combined with chemotherapy and PD-1/PD-L1 blockade enhanced antitumor immunity for locally advanced pancreatic cancer. Front Immunol 2023; 14:1193040. [PMID: 37691923 PMCID: PMC10485610 DOI: 10.3389/fimmu.2023.1193040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 08/09/2023] [Indexed: 09/12/2023] Open
Abstract
Background Irreversible electroporation (IRE) is a novel local tumor ablation approach with the potential to stimulate an antitumor immune response. However, it is not effective in preventing distant metastasis in isolation. This study aimed to compare the potential of augmenting the antitumor immune response in patients with locally advanced pancreatic cancer (LAPC) who underwent IRE combined with chemotherapy and PD-1/PD-L1 blockade with those who underwent IRE combined with chemotherapy. Methods A retrospective review was conducted on LAPC patients treated either with IRE in combination with chemotherapy and PD-1/PD-L1 blockade (group A) or with IRE with chemotherapy alone (group B) from July 2015 to June 2021. The primary outcomes were overall survival (OS) and progression-free survival (PFS), with immune responses and adverse events serving as secondary endpoints. Risk factors for OS and PFS were identified using univariate and multivariate analyses. Results A total of 103 patients were included in the final analysis, comprising 25 in group A and 78 in group B. The median duration of follow-up was 18.2 months (3.0-38.6 months). Group A patients demonstrated improved survival compared to group B (median OS: 23.6 vs. 19.4 months, p = 0.001; median PFS: 18.2 vs. 14.7 months, p = 0.022). The data suggest a robust immune response in group A, while adverse events related to the treatment were similar in both groups. The multivariate analysis identified the combination of IRE, chemotherapy, and PD-1/PD-L1 blockade as an independent prognostic factor for OS and PFS. Conclusion The addition of PD-1/PD-L1 blockade to the regimen of IRE combined with chemotherapy enhanced antitumor immunity and extended survival in LAPC patients.
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Affiliation(s)
- Yangyang Ma
- Central Laboratory, Affiliated Fuda Cancer Hospital, Jinan University, Guangzhou, China
| | - Yanli Xing
- Department of Oncology, Affiliated Fuda Cancer Hospital, Jinan University, Guangzhou, China
| | - Hongmei Li
- Department of Oncology, Affiliated Fuda Cancer Hospital, Jinan University, Guangzhou, China
| | - Ting Yuan
- Department of Oncology, Affiliated Fuda Cancer Hospital, Jinan University, Guangzhou, China
| | - Bing Liang
- Department of Surgery and Anesthesia, Affiliated Fuda Cancer Hospital, Jinan University, Guangzhou, China
| | - Rongrong Li
- Department of Ultrasound, Affiliated Fuda Cancer Hospital, Jinan University, Guangzhou, China
| | - Jianyu Li
- Department of Surgery and Anesthesia, Affiliated Fuda Cancer Hospital, Jinan University, Guangzhou, China
| | - Zhonghai Li
- Department of Radiology, Affiliated Fuda Cancer Hospital, Jinan University, Guangzhou, China
| | - Shuying Li
- Department of Surgery and Anesthesia, Affiliated Fuda Cancer Hospital, Jinan University, Guangzhou, China
| | - Lizhi Niu
- Department of Oncology, Affiliated Fuda Cancer Hospital, Jinan University, Guangzhou, China
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6
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De Grandis MC, Ascenti V, Lanza C, Di Paolo G, Galassi B, Ierardi AM, Carrafiello G, Facciorusso A, Ghidini M. Locoregional Therapies and Remodeling of Tumor Microenvironment in Pancreatic Cancer. Int J Mol Sci 2023; 24:12681. [PMID: 37628865 PMCID: PMC10454061 DOI: 10.3390/ijms241612681] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 08/05/2023] [Accepted: 08/08/2023] [Indexed: 08/27/2023] Open
Abstract
Despite the advances made in treatment, the prognosis of pancreatic ductal adenocarcinoma (PDAC) remains dismal, even in the locoregional and locally advanced stages, with high relapse rates after surgery. PDAC exhibits a chemoresistant and immunosuppressive phenotype, and the tumor microenvironment (TME) surrounding cancer cells actively participates in creating a stromal barrier to chemotherapy and an immunosuppressive environment. Recently, there has been an increasing use of interventional radiology techniques for the treatment of PDAC, although they do not represent a standard of care and are not included in clinical guidelines. Local approaches such as radiation therapy, hyperthermia, microwave or radiofrequency ablation, irreversible electroporation and high-intensity focused ultrasound exert their action on the tumor tissue, altering the composition and structure of TME and potentially enhancing the action of chemotherapy. Moreover, their action can increase antigen release and presentation with T-cell activation and reduction tumor-induced immune suppression. This review summarizes the current evidence on locoregional therapies in PDAC and their effect on remodeling TME to make it more susceptible to the action of antitumor agents.
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Affiliation(s)
| | - Velio Ascenti
- Postgraduate School of Diagnostic and Interventional Radiology, University of Milan, 20122 Milan, Italy; (V.A.); (C.L.)
| | - Carolina Lanza
- Postgraduate School of Diagnostic and Interventional Radiology, University of Milan, 20122 Milan, Italy; (V.A.); (C.L.)
| | - Giacomo Di Paolo
- Oncology Unit 1, Veneto Institute of Oncology IOV-IRCCS, 35128 Padua, Italy; (M.C.D.G.); (G.D.P.)
| | - Barbara Galassi
- Oncology Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy; (B.G.); (M.G.)
| | - Anna Maria Ierardi
- Radiology Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy; (A.M.I.); (G.C.)
| | - Gianpaolo Carrafiello
- Radiology Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy; (A.M.I.); (G.C.)
- Department of Oncology and Haemato-Oncology, University of Milan, 20122 Milan, Italy
| | - Antonio Facciorusso
- Section of Gastroenterology, Department of Medical and Surgical Sciences, University of Foggia, 71122 Foggia, Italy
| | - Michele Ghidini
- Oncology Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy; (B.G.); (M.G.)
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Prete AM, Gonda TA. Endoscopic Ultrasound-Guided Local Ablative Therapies for the Treatment of Pancreatic Neuroendocrine Tumors and Cystic Lesions: A Review of the Current Literature. J Clin Med 2023; 12:jcm12093325. [PMID: 37176764 PMCID: PMC10179349 DOI: 10.3390/jcm12093325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 05/02/2023] [Accepted: 05/05/2023] [Indexed: 05/15/2023] Open
Abstract
Since its emergence as a diagnostic modality in the 1980s, endoscopic ultrasound (EUS) has provided the clinician profound access to gastrointestinal organs to aid in the direct visualization, sampling, and subsequent identification of pancreatic pathology. In recent years, advancements in EUS as an interventional technique have promoted the use of local ablative therapies as a minimally invasive alternative to the surgical management of pancreatic neuroendocrine tumors (pNETs) and pancreatic cystic neoplasms (PCNs), especially for those deemed to be poor operative candidates. EUS-guided local therapies have demonstrated promising efficacy in addressing a spectrum of pancreatic neoplasms, while also balancing local adverse effects on healthy parenchyma. This article serves as a review of the current literature detailing the mechanisms, outcomes, complications, and limitations of EUS-guided local ablative therapies such as chemical ablation and radiofrequency ablation (RFA) for the treatment of pNETs and PCNs, as well as a discussion of future applications of EUS-guided techniques to address a broader scope of pancreatic pathology.
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Affiliation(s)
- Alexander M Prete
- Department of Medicine, New York University (NYU) Grossman School of Medicine, New York, NY 10016, USA
| | - Tamas A Gonda
- Division of Gastroenterology and Hepatology, New York University (NYU) Langone Health, New York, NY 10016, USA
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Punzi E, Carrubba C, Contegiacomo A, Posa A, Barbieri P, De Leoni D, Mazza G, Tanzilli A, Cina A, Natale L, Sala E, Iezzi R. Interventional Radiology in the Treatment of Pancreatic Adenocarcinoma: Present and Future Perspectives. Life (Basel) 2023; 13:life13030835. [PMID: 36983990 PMCID: PMC10059735 DOI: 10.3390/life13030835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Revised: 03/07/2023] [Accepted: 03/18/2023] [Indexed: 03/30/2023] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is a lethal disease; patients' long-term survival is strictly linked to the surgical resection of the tumor but only a minority of patients (2-3%) have a resectable disease at diagnosis. In patients with surgically unresectable disease, interventional radiology is taking on an increasing role in treatment with the application of loco-regional percutaneous therapies. The primary purposes of this narrative review are to analyze the safety and efficacy of ablative techniques in the management of borderline resectable and locally advanced diseases and to underline the role of the interventional radiologist in the management of patients with distant metastases. The secondary purpose is to focus on the synergy between immunotherapy and ablative therapies.
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Affiliation(s)
- Ernesto Punzi
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia-Istituto di Radiologia, Fondazione Policlinico Universitario A. Gemelli IRCCS, l.go A gemelli 8, 00168 Rome, Italy
| | - Claudio Carrubba
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia-Istituto di Radiologia, Fondazione Policlinico Universitario A. Gemelli IRCCS, l.go A gemelli 8, 00168 Rome, Italy
| | - Andrea Contegiacomo
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia-Istituto di Radiologia, Fondazione Policlinico Universitario A. Gemelli IRCCS, l.go A gemelli 8, 00168 Rome, Italy
| | - Alessandro Posa
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia-Istituto di Radiologia, Fondazione Policlinico Universitario A. Gemelli IRCCS, l.go A gemelli 8, 00168 Rome, Italy
| | - Pierluigi Barbieri
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia-Istituto di Radiologia, Fondazione Policlinico Universitario A. Gemelli IRCCS, l.go A gemelli 8, 00168 Rome, Italy
| | - Davide De Leoni
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia-Istituto di Radiologia, Fondazione Policlinico Universitario A. Gemelli IRCCS, l.go A gemelli 8, 00168 Rome, Italy
| | - Giulia Mazza
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia-Istituto di Radiologia, Fondazione Policlinico Universitario A. Gemelli IRCCS, l.go A gemelli 8, 00168 Rome, Italy
| | - Alessandro Tanzilli
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia-Istituto di Radiologia, Fondazione Policlinico Universitario A. Gemelli IRCCS, l.go A gemelli 8, 00168 Rome, Italy
| | - Alessandro Cina
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia-Istituto di Radiologia, Fondazione Policlinico Universitario A. Gemelli IRCCS, l.go A gemelli 8, 00168 Rome, Italy
| | - Luigi Natale
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia-Istituto di Radiologia, Fondazione Policlinico Universitario A. Gemelli IRCCS, l.go A gemelli 8, 00168 Rome, Italy
- Istituto di Radiodiagnostica, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
| | - Evis Sala
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia-Istituto di Radiologia, Fondazione Policlinico Universitario A. Gemelli IRCCS, l.go A gemelli 8, 00168 Rome, Italy
- Istituto di Radiodiagnostica, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
| | - Roberto Iezzi
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia-Istituto di Radiologia, Fondazione Policlinico Universitario A. Gemelli IRCCS, l.go A gemelli 8, 00168 Rome, Italy
- Istituto di Radiodiagnostica, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
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Design and Assessment of a Novel Biconical Human-Sized Alternating Magnetic Field Coil for MNP Hyperthermia Treatment of Deep-Seated Cancer. Cancers (Basel) 2023; 15:cancers15061672. [PMID: 36980560 PMCID: PMC10046348 DOI: 10.3390/cancers15061672] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 03/07/2023] [Accepted: 03/07/2023] [Indexed: 03/11/2023] Open
Abstract
Magnetic nanoparticle (MNP) hyperthermia therapy is a treatment technique that can be used alone or as an adjunct to radiation and/or chemotherapies for killing cancer cells. During treatment, MNPs absorb a part of electromagnetic field (EMF) energy and generate localized heat when subjected to an alternating magnetic field (AMF). The MNP-absorbed EMF energy, which is characterized by a specific absorption rate (SAR), is directly proportional to AMF frequency and the magnitude of transmitting currents in the coil. Furthermore, the AMF penetrates inside tissue and induces eddy currents in electrically conducting tissues, which are proportional to the electric field (J = σE). The eddy currents produce Joule heating (<J·E> = 0.5·σ·E2) in the normal tissue, the rate of energy transfer to the charge carriers from the applied electric fields. This Joule heating contains only the electric field because the magnetic field is always perpendicular to the velocity of the conduction charges, i.e., it does not produce work on moving charge. Like the SAR due to MNP, the electric field produced by the AMF coil is directly proportional to AMF frequency and the magnitude of transmitting currents in the coil. As a result, the Joule heating is directly proportional to the square of the frequency and transmitter current magnitude. Due to the fast decay of magnetic fields from an AMF coil over distance, MNP hyperthermia treatment of deep-seated tumors requires high-magnitude transmitting currents in the coil for clinically achievable MNP distributions in the tumor. This inevitably produces significant Joule heating in the normal tissue and becomes more complicated for a standard MNP hyperthermia approach for deep-seated tumors, such as pancreatic, prostate, liver, lung, ovarian, kidney, and colorectal cancers. This paper presents a novel human-sized AMF coil and MNP hyperthermia system design for safely and effectively treating deep-seated cancers. The proposed design utilizes the spatial distribution of electric and magnetic fields of circular coils. Namely, it first minimizes the SAR due to eddy currents in the normal tissue by moving the conductors away from the tissue (i.e., increasing coils’ radii), and second, it increases the magnetic field at the targeted area (z = 0) due to elevated coils (|z| > 0) by increasing the radius of the elevated coils (|z| > 0). This approach is a promising alternative aimed at overcoming the limitation of standard MNP hyperthermia for deep-seated cancers by taking advantage of the transmitter coil’s electric and magnetic field distributions in the human body for maximizing AMF in tumor regions and avoiding damage to normal tissue. The human-sized coil’s AMF, MNP activation, and eddy current distribution characteristics are investigated for safe and effective treatment of deep-seated tumors using numerical models. Namely, computational results such as AMF, Joule heating SAR, and temperature distributions are presented for a full-body, 3D human model. The SAR and temperature distributions clearly show that the proposed human-sized AMF coil can provide clinically relevant AMF to the region occupied by deep-seated cancers for the application of MNP hyperthermia therapy while causing less Joule heating in the normal tissues than commonly used AMF techniques.
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In Vitro Measurement and Mathematical Modeling of Thermally-Induced Injury in Pancreatic Cancer Cells. Cancers (Basel) 2023; 15:cancers15030655. [PMID: 36765619 PMCID: PMC9913239 DOI: 10.3390/cancers15030655] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 01/16/2023] [Accepted: 01/18/2023] [Indexed: 01/24/2023] Open
Abstract
Thermal therapies are under investigation as part of multi-modality strategies for the treatment of pancreatic cancer. In the present study, we determined the kinetics of thermal injury to pancreatic cancer cells in vitro and evaluated predictive models for thermal injury. Cell viability was measured in two murine pancreatic cancer cell lines (KPC, Pan02) and a normal fibroblast (STO) cell line following in vitro heating in the range 42.5-50 °C for 3-60 min. Based on measured viability data, the kinetic parameters of thermal injury were used to predict the extent of heat-induced damage. Of the three thermal injury models considered in this study, the Arrhenius model with time delay provided the most accurate prediction (root mean square error = 8.48%) for all cell lines. Pan02 and STO cells were the most resistant and susceptible to hyperthermia treatments, respectively. The presented data may contribute to studies investigating the use of thermal therapies as part of pancreatic cancer treatment strategies and inform the design of treatment planning strategies.
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11
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Zubair M, Adams MS, Diederich CJ. An endoluminal cylindrical sectored-ring ultrasound phased-array applicator for minimally-invasive therapeutic ultrasound. Med Phys 2023; 50:1-19. [PMID: 36413363 PMCID: PMC9870260 DOI: 10.1002/mp.16113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 11/10/2022] [Accepted: 11/10/2022] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND The size of catheter-based ultrasound devices for delivering ultrasound energy to deep-seated tumors is constrained by the access pathway which limits their therapeutic capabilities. PURPOSE To devise and investigate a deployable applicator suitable for minimally-invasive delivery of therapeutic ultrasound, consisting of a 2D cylindrical sectored-ring ultrasound phased array, integrated within an expandable paraboloid-shaped balloon-based reflector. The balloon can be collapsed for compact delivery and expanded close to the target position to mimic a larger-diameter concentric-ring sector-vortex array for enhanced dynamic control of focal depth and volume. METHODS Acoustic and biothermal simulations were employed in 3D generalized homogeneous and patient-specific heterogeneous models, for three-phased array transducers with 32, 64, and 128 elements, composed of sectored 4, 8, and 16 tubular ring transducers, respectively. The applicator performance was characterized as a function of array configuration, focal depth, phasing modes, and balloon reflector geometry. A 16-element proof-of-concept phased array applicator assembly, consisting of four tubular transducers each divided into four sectors, was fabricated, and characterized with hydrophone measurements along and across the axis, and ablations in ex vivo tissue. RESULTS Simulation results indicated that transducer arrays (1.5 MHz, 9 mm OD × 20 mm long), balloon sizes (41-50 mm expanded diameter, 20-60 mm focal depth), phasing mode (0-4) and sonication duration (30 s) can produce spatially localized acoustic intensity focal patterns (focal length: 3-22 mm, focal width: 0.7-8.7 mm) and ablative thermal lesions (width: 2.7-16 mm, length: 6-46 mm) in pancreatic tissue across a 10-90 mm focal depth range. Patient-specific studies indicated that 0.1, 0.46, and 1.2 cm3 volume of tumor can be ablated in the body of the pancreas for 120 s sonications using a single axial focus (Mode 0), or four, and eight simultaneous foci in a toroidal pattern (Mode 2 and 4, respectively). Hydrophone measurements demonstrated good agreement with simulation. Experiments in which chicken meat was thermally ablated indicated that volumetric ablation can be produced using single or multiple foci. CONCLUSIONS The results of this study demonstrated the feasibility of a novel compact ultrasound applicator design capable of focusing, deep penetration, electronic steering, and volumetric thermal ablation. The proposed applicator can be used for compact endoluminal or laparoscopic delivery of localized ultrasound energy to deep-seated targets.
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Affiliation(s)
- Muhammad Zubair
- Department of Radiation Oncology University of California San Francisco USA
| | - Matthew S. Adams
- Department of Radiation Oncology University of California San Francisco USA
| | - Chris J. Diederich
- Department of Radiation Oncology University of California San Francisco USA
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12
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Bazeed AY, Day CM, Garg S. Pancreatic Cancer: Challenges and Opportunities in Locoregional Therapies. Cancers (Basel) 2022; 14:cancers14174257. [PMID: 36077794 PMCID: PMC9454856 DOI: 10.3390/cancers14174257] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 08/29/2022] [Accepted: 08/29/2022] [Indexed: 12/12/2022] Open
Abstract
Simple Summary Pancreatic cancer is a serious ongoing global health burden, with an overall 5-year survival rate of less than 5%. One major hurdle in the treatment of this disease is the predominantly elderly patient population, leading to their ineligibility for curative surgery and a low rate of successful outcomes. Systemic administration introduces chemo-agents throughout the body via the blood, attacking not only tumours but also healthy organs. When localised interventions are employed, chemo-agents are retained specifically at tumour site, minimizing unwanted toxicity. As a result, there is a growing interest in finding novel localised interventions as alternatives to systemic therapy. Here, we present a detailed review of current locoregional therapies used in pancreatic cancer therapy. This work aims to present a thorough guide for researchers and clinicians intended to employ established and novel localised interventions in the treatment of pancreatic cancer. Furthermore, we present our insights and opinions on the potential ideals to improve these tools. Abstract Pancreatic cancer (PC) remains the seventh leading cause of cancer-related deaths worldwide and the third in the United States, making it one of the most lethal solid malignancies. Unfortunately, the symptoms of this disease are not very apparent despite an increasing incidence rate. Therefore, at the time of diagnosis, 45% of patients have already developed metastatic tumours. Due to the aggressive nature of the pancreatic tumours, local interventions are required in addition to first-line treatments. Locoregional interventions affect a specific area of the pancreas to minimize local tumour recurrence and reduce the side effects on surrounding healthy tissues. However, compared to the number of new studies on systemic therapy, very little research has been conducted on localised interventions for PC. To address this unbalanced focus and to shed light on the tremendous potentials of locoregional therapies, this work will provide a detailed discussion of various localised treatment strategies. Most importantly, to the best of our knowledge, the aspect of localised drug delivery systems used in PC was unprecedentedly discussed in this work. This review is meant for researchers and clinicians considering utilizing local therapy for the effective treatment of PC, providing a thorough guide on recent advancements in research and clinical trials toward locoregional interventions, together with the authors’ insight into their potential improvements.
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13
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Pion E, Karnosky J, Boscheck S, Wagner BJ, Schmidt KM, Brunner SM, Schlitt HJ, Aung T, Hackl C, Haerteis S. 3D In Vivo Models for Translational Research on Pancreatic Cancer: The Chorioallantoic Membrane (CAM) Model. Cancers (Basel) 2022; 14:cancers14153733. [PMID: 35954398 PMCID: PMC9367548 DOI: 10.3390/cancers14153733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 07/21/2022] [Accepted: 07/28/2022] [Indexed: 11/25/2022] Open
Abstract
Simple Summary The 5-year overall survival rate for all stages of pancreatic cancer is relatively low at about only 6%. As a result of this exceedingly poor prognosis, new research models are necessary to investigate this highly malignant cancer. One model that has been used extensively for a vast variety of different cancers is the chorioallantoic membrane (CAM) model. It is based on an exceptionally vascularized membrane that develops within fertilized chicken eggs and can be used for the grafting and analysis of tumor tissue. The aim of the study was to summarize already existing works on pancreatic ductal adenocarcinoma (PDAC) and the CAM model. The results were subdivided into different categories that include drug testing, angiogenesis, personalized medicine, modifications of the model, and further developments to help improve the unfavorable prognosis of this disease. Abstract Pancreatic ductal adenocarcinoma (PDAC) is a highly aggressive cancer with adverse outcomes that have barely improved over the last decade. About half of all patients present with metastasis at the time of diagnosis, and the 5-year overall survival rate across all stages is only 6%. Innovative in vivo research models are necessary to combat this cancer and to discover novel treatment strategies. The chorioallantoic membrane (CAM) model represents one 3D in vivo methodology that has been used in a large number of studies on different cancer types for over a century. This model is based on a membrane formed within fertilized chicken eggs that contain a dense network of blood vessels. Because of its high cost-efficiency, simplicity, and versatility, the CAM model appears to be a highly valuable research tool in the pursuit of gaining more in-depth insights into PDAC. A summary of the current literature on the usage of the CAM model for the investigation of PDAC was conducted and subdivided into angiogenesis, drug testing, modifications, personalized medicine, and further developments. On this comprehensive basis, further research should be conducted on PDAC in order to improve the abysmal prognosis of this malignant disease.
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Affiliation(s)
- Eric Pion
- Institute for Molecular and Cellular Anatomy, University of Regensburg, 93053 Regensburg, Germany; (E.P.); (S.B.); (T.A.)
| | - Julia Karnosky
- Department of Surgery, University Hospital Regensburg, 93053 Regensburg, Germany; (J.K.); (B.J.W.); (K.M.S.); (S.M.B.); (H.J.S.); (C.H.)
| | - Sofie Boscheck
- Institute for Molecular and Cellular Anatomy, University of Regensburg, 93053 Regensburg, Germany; (E.P.); (S.B.); (T.A.)
| | - Benedikt J. Wagner
- Department of Surgery, University Hospital Regensburg, 93053 Regensburg, Germany; (J.K.); (B.J.W.); (K.M.S.); (S.M.B.); (H.J.S.); (C.H.)
| | - Katharina M. Schmidt
- Department of Surgery, University Hospital Regensburg, 93053 Regensburg, Germany; (J.K.); (B.J.W.); (K.M.S.); (S.M.B.); (H.J.S.); (C.H.)
| | - Stefan M. Brunner
- Department of Surgery, University Hospital Regensburg, 93053 Regensburg, Germany; (J.K.); (B.J.W.); (K.M.S.); (S.M.B.); (H.J.S.); (C.H.)
| | - Hans J. Schlitt
- Department of Surgery, University Hospital Regensburg, 93053 Regensburg, Germany; (J.K.); (B.J.W.); (K.M.S.); (S.M.B.); (H.J.S.); (C.H.)
| | - Thiha Aung
- Institute for Molecular and Cellular Anatomy, University of Regensburg, 93053 Regensburg, Germany; (E.P.); (S.B.); (T.A.)
- Faculty of Applied Healthcare Science, Deggendorf Institute of Technology, 94469 Deggendorf, Germany
| | - Christina Hackl
- Department of Surgery, University Hospital Regensburg, 93053 Regensburg, Germany; (J.K.); (B.J.W.); (K.M.S.); (S.M.B.); (H.J.S.); (C.H.)
| | - Silke Haerteis
- Institute for Molecular and Cellular Anatomy, University of Regensburg, 93053 Regensburg, Germany; (E.P.); (S.B.); (T.A.)
- Correspondence:
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14
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Jones TH, Song JW, Abushahin L. Tumor treating fields: An emerging treatment modality for thoracic and abdominal cavity cancers. Transl Oncol 2022; 15:101296. [PMID: 34847422 PMCID: PMC8633677 DOI: 10.1016/j.tranon.2021.101296] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 11/13/2021] [Accepted: 11/22/2021] [Indexed: 01/05/2023] Open
Abstract
Tumor treating fields (TTFields)-an intermediate-frequency, electric field therapy-has emerged as a promising alternative therapy for the treatment of solid cancers. Since the first publication describing the anticancer effects of TTFields in 2004 there have been numerous follow-up studies by other groups, either to confirm the efficacy of TTFields or to study the primary mechanism of interaction. The overwhelming conclusion from these in vitro studies is that TTFields reduce the viability of aggressively replicating cell lines. However, there is still speculation as to the primary mechanism for this effect; moreover, observations both in vitro and in vivo of inhibited migration and metastases have been made, which may be unrelated to the originally proposed hypothesis of replication stress. Adding to this, the in vivo environment is much more complex spatially, structurally, and involves intricate networks of cell signaling, all of which could change the efficacy of TTFields in the same way pharmaceutical interventions often struggle transitioning in vivo. Despite this, TTFields have shown promise in clinical practice on multiple cancer types, which begs the question: has the primary mechanism carried over from in vitro to in vivo or are there new mechanisms at play? The goal of this review is to highlight the current proposed mechanism of action of TTFields based primarily on in vitro experiments and animal models, provide a summary of the clinical efficacy of TTFields, and finally, propose future directions of research to identify all possible mechanisms in vivo utilizing novel tumor-on-a-chip platforms.
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Affiliation(s)
- Travis H Jones
- Department of Mechanical and Aerospace Engineering, The Ohio State University, 201W. 19th Avenue, E406 Scott Laboratory, Columbus, OH 43210, United States; Department of Internal Medicine, Division of Medical Oncology, The Ohio State University, 1800 Canon Drive, 1300G, Columbus, OH 43210, United States
| | - Jonathan W Song
- Department of Mechanical and Aerospace Engineering, The Ohio State University, 201W. 19th Avenue, E406 Scott Laboratory, Columbus, OH 43210, United States; Arthur G. James Comprehensive Cancer Center and Richard J. Solove Research Institute, The Ohio State University Medical Center, Columbus, OH 43210, United States.
| | - Laith Abushahin
- Department of Internal Medicine, Division of Medical Oncology, The Ohio State University, 1800 Canon Drive, 1300G, Columbus, OH 43210, United States; Arthur G. James Comprehensive Cancer Center and Richard J. Solove Research Institute, The Ohio State University Medical Center, Columbus, OH 43210, United States.
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15
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Heger U, Hackert T. Can local ablative techniques replace surgery for locally advanced pancreatic cancer? J Gastrointest Oncol 2021; 12:2536-2546. [PMID: 34790414 DOI: 10.21037/jgo-20-379] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Accepted: 11/04/2020] [Indexed: 12/25/2022] Open
Abstract
In the treatment of pancreatic ductal adenocarcinoma (PDAC) the best chance at long term survival or cure has to date always included the complete surgical removal of the tumor. However, locally advanced pancreatic cancer (LAPC), about 25% of all newly diagnosed PDAC, is defined by its primary technical unresectability due to infiltration of visceral arteries and absence of metastasis. Induction therapies, especially FOLFIRINOX treatment, together with technical surgical advancement have increased the numbers for conversion to secondary resectability. Recent data on resections after induction therapy show promising, almost doubled survival compared to palliative treatment. Yet, around 70% of LAPC remain unresectable after induction therapy, often due to persistent local invasion. As locally ablative techniques are becoming more widely available this review examines their possible applicability to substitute for surgery in these cases which we propose to group under the new term "Inconvertible LAPC". The need for defining this novel subgroup who might benefit from ablative treatment is based on the findings in our review that high-level evidence on ablative techniques for PDAC is largely lacking and the latest effective, harmonized treatment guidelines for LAPC are not often incorporated in these studies. The "inconvertible LAPC" label requires persistent unresectability after staging and induction therapy of LAPC according to current guidelines followed by liberal indication for aggressive surgical exploration at a center equipped for extended pancreatic resections. Ideally, this specification of a new, distinct patient group will also put it in the spotlight more, hopefully prompt more trials designed to generate robust evidence and optimize transferability of study results.
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Affiliation(s)
- Ulrike Heger
- Department of Surgery, Heidelberg University Hospital, Heidelberg, Germany
| | - Thilo Hackert
- Department of Surgery, Heidelberg University Hospital, Heidelberg, Germany
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16
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Culp WTN, Johnson EG, Palm CA, Burton JH, Rebhun RB, Rodriguez CO, Kent MS, Glaiberman CB. Use of percutaneous microwave ablation in the treatment of retroperitoneal neoplasia in three dogs. J Am Vet Med Assoc 2021; 259:1171-1177. [PMID: 34727078 DOI: 10.2460/javma.20.09.0505] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
CASE DESCRIPTION 3 dogs with retroperitoneal masses (2 renal and 1 located near the diaphragm) were treated by percutaneous microwave ablation (MWA). CLINICAL FINDINGS Dogs between 11 and 13 years of age weighing between 13.7 and 43.8 kg had either a renal mass (n = 2) or a mass located in the caudodorsal aspect of the retroperitoneal space near the right side of the diaphragm (1). Cytology revealed that one of the renal masses and the mass located near the diaphragm were malignant neoplasias. Findings on cytologic evaluation of a sample of the other renal mass was nondiagnostic. Maximum mass diameters ranged between 1.4 and 2.5 cm. TREATMENT AND OUTCOME All dogs were treated by percutaneous MWA. Probes were directed into tumors by use of ultrasound and CT guidance, and microwave energy was applied to each mass. Findings on imaging of each mass following MWA was consistent with successful treatment. No intraprocedural or major postprocedural complications occurred, and all dogs were discharged from the hospital within 3 days of treatment. Two dogs died at 3 and 21 months after MWA with no known local recurrence; 1 dog was still alive 64 months after treatment. CLINICAL RELEVANCE Although the indications for MWA in the treatment of neoplasia in companion animals are limited, the outcomes of dogs in the present report provided preliminary evidence that percutaneous MWA can be safely used to effectively treat retroperitoneal neoplasia. This procedure was successfully performed with image guidance in all 3 dogs.
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Bibok A, Kim DW, Malafa M, Kis B. Minimally invasive image-guided therapy of primary and metastatic pancreatic cancer. World J Gastroenterol 2021; 27:4322-4341. [PMID: 34366607 PMCID: PMC8316906 DOI: 10.3748/wjg.v27.i27.4322] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 05/21/2021] [Accepted: 06/23/2021] [Indexed: 02/06/2023] Open
Abstract
Pancreatic cancer is a challenging malignancy with limited treatment options and poor life expectancy. The only curative option is surgical resection, but only 15%-20% of patients are resectable at presentation because more than 50% of patients has distant metastasis at diagnosis and the rest of them has locally advanced pancreatic cancer (LAPC). The standard of care first line treatment for LAPC patients is chemotherapy with or without radiation therapy. Recent developments in minimally invasive ablative techniques may add to the treatment armamentarium of LAPC. There are increasing number of studies evaluating these novel ablative techniques, including radiofrequency ablation, microwave ablation, cryoablation and irreversible electroporation. Most studies which included pancreatic tumor ablation, demonstrated improved overall survival in LAPC patients. However, the exact protocols are yet to set up to which stage of the treatment algorithm ablative techniques can be added and in what kind of treatment combinations. Patients with metastatic pancreatic cancer has dismal prognosis with 5-year survival is only 3%. The most common metastatic site is the liver as 90% of pancreatic cancer patients develop liver metastasis. Chemotherapy is the primary treatment option for patients with metastatic pancreatic cancer. However, when the tumor is not responding to chemotherapy or severe drug toxicity develops, locoregional liver-directed therapies can provide an opportunity to control intrahepatic disease progression and improve survival in selected patients. During the last decade new therapeutic options arose with the advancement of minimally invasive technologies to treat pancreatic cancer patients. These new therapies have been a topic of increasing interest due to the severe prognostic implications of locally advanced and metastatic pancreatic cancer and the low comorbid risk of these procedures. This review summarizes new ablative options for patients with LAPC and percutaneous liver-directed therapies for patients with liver-dominant metastatic disease.
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Affiliation(s)
- Andras Bibok
- Department of Diagnostic Imaging and Interventional Radiology, H. Lee Moffitt Cancer Center, Tampa, FL 33612, United States
- Department of Transplantation & Surgery, Radiology Unit, Semmelweis University, Budapest 1085, Hungary
| | - Dae Won Kim
- Department of Gastrointestinal Oncology, H. Lee Moffitt Cancer Center, Tampa, FL 33612, United States
| | - Mokenge Malafa
- Department of Gastrointestinal Oncology, H. Lee Moffitt Cancer Center, Tampa, FL 33612, United States
| | - Bela Kis
- Department of Diagnostic Imaging and Interventional Radiology, H. Lee Moffitt Cancer Center, Tampa, FL 33612, United States
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Granata V, Grassi R, Fusco R, Belli A, Palaia R, Carrafiello G, Miele V, Grassi R, Petrillo A, Izzo F. Local ablation of pancreatic tumors: State of the art and future perspectives. World J Gastroenterol 2021; 27:3413-3428. [PMID: 34163121 PMCID: PMC8218359 DOI: 10.3748/wjg.v27.i23.3413] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Revised: 03/28/2021] [Accepted: 05/08/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Currently, the technologies most commonly used to treat locally advanced pancreatic cancer are radiofrequency ablation (RFA), microwave ablation, and irreversible (IRE) or reversible electroporation combined with low doses of chemotherapeutic drugs.
AIM To report an overview and updates on ablative techniques in pancreatic cancer.
METHODS Several electronic databases were searched. The search covered the years from January 2000 to January 2021. Moreover, the reference lists of the found papers were analysed for papers not indexed in the electronic databases. All titles and abstracts were analysed.
RESULTS We found 30 studies (14 studies for RFA, 3 for microwave therapy, 10 for IRE, and 3 for electrochemotherapy), comprising 1047 patients, which were analysed further. Two randomized trials were found for IRE. Percutaneous and laparotomy approaches were performed. In the assessed patients, the median maximal diameter of the lesions was in the range of 2.8 to 4.5 cm. All series included patients unfit for surgical treatment, but Martin et al assessed a subgroup of patients with borderline resectable tumours who underwent resection with margin attenuation with IRE. Most studies administered chemotherapy prior to ablative therapies. However, several studies suggest that the key determinant of improved survival is attributable to ablative treatment alone. Nevertheless, the authors suggested chemotherapy before local therapies for several reasons. This strategy may not only downstage a subgroup of patients to curative-intent surgery but also support to recognize patients with biologically unfavourable tumours who would likely not benefit from ablation treatments. Ablation therapies seem safe based on the 1047 patients assessed in this review. The mortality rate ranged from 1.8% to 2%. However, despite the low mortality, the reported rates of severe post procedural complications ranged from 0%-42%. Most reported complications have been self-limiting and manageable. Median overall survival varied between 6.0 and 33 mo. Regarding the technical success rate, assessed papers reported an estimated rate in the range of 85% to 100%. However, the authors reported early recurrence after treatment. A distinct consideration should be made on whether local treatments induce an immune response in the ablated area. Preclinical and clinical studies have shown that RFA is a promising mechanism for inducing antigen-presenting cell infiltration and enhancing the systemic antitumour T-cell immune response and tumour regression.
CONCLUSION In the management of patients with pancreatic cancer, the possibility of a multimodal approach should be considered, and conceptually, the combination of RFA with immunotherapy represents a novel angle of attack against this tumour.
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Affiliation(s)
- Vincenza Granata
- Department of Radiology, Istituto Nazionale Tumori –IRCCS- Fondazione G. Pascale, Naples 80131, Italy
| | - Roberta Grassi
- Department of Radiology, Università degli Studi della Campania Luigi Vanvitelli, Naples 80127, Italy
| | - Roberta Fusco
- Department of Radiology, Istituto Nazionale Tumori –IRCCS- Fondazione G. Pascale, Naples 80131, Italy
| | - Andrea Belli
- Department of Surgery, Istituto Nazionale Tumori –IRCCS- Fondazione G. Pascale, Naples 80131, Italy
| | - Raffaele Palaia
- Department of Surgery, Istituto Nazionale Tumori –IRCCS- Fondazione G. Pascale, Naples 80131, Italy
| | | | - Vittorio Miele
- Italian Society of Medical and Interventional Radiology SIRM, SIRM Foundation Milan 20122, Italy
- Department of Emergency Radiology, San Camillo Hospital, Firenze 50139, Italy
| | - Roberto Grassi
- Department of Radiology, Università degli Studi della Campania Luigi Vanvitelli, Naples 80127, Italy
- Italian Society of Medical and Interventional Radiology SIRM, SIRM Foundation Milan 20122, Italy
| | - Antonella Petrillo
- Department of Radiology, Istituto Nazionale Tumori –IRCCS- Fondazione G. Pascale, Naples 80131, Italy
| | - Francesco Izzo
- Department of Surgery, Istituto Nazionale Tumori –IRCCS- Fondazione G. Pascale, Naples 80131, Italy
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Iancu I, Bartoș A, Cioltean CL, Breazu C, Iancu C, Bartoș D. Role of radio-ablative technique for optimizing the survival of patients with locally advanced pancreatic adenocarcinoma (Review). Exp Ther Med 2021; 22:853. [PMID: 34178126 PMCID: PMC8220652 DOI: 10.3892/etm.2021.10285] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Accepted: 05/05/2021] [Indexed: 12/19/2022] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is one of the most common and frequently diagnosed malignant tumor of the pancreas with few treatment options and poor life expectancy. Despite the advances in the surgical field, 40% of the patients are diagnosed with locally advanced disease which is not suitable for surgery. Radio-frequency ablation (RFA) has been described as a new ‘weapon’ in the multimodal treatment of PDAC, representing a cytoreductive procedure which must be completed with radiotherapy or chemo-radiotherapy. A systematic research was carried out utilizing the PubMed database in regards to this subject, to evaluate the role of RFA in PDAC management. Abstracts, letters-to-the-editor and non-English language manuscripts were excluded. The literature showed that RFA can be used in open and laparoscopic surgery but it is also feasible for endoscopic ultrasound (EUS-guided RFA) or percutaneous approach. Even though we found optimistic and encouraging reports on overall survival (OS), randomized studies are still required to corroborate these findings. Our review research underline that surgical resection remains the only radical treatment option, RFA being a safe and feasible technique reserved for unresectable, non-metastatic pancreatic tumors. Its combination with oncological treatment can improve the OS of these patients.
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Affiliation(s)
- Ioana Iancu
- Department of Surgery, Regional Institute of Gastroenterology and Hepatology, 400162 Cluj-Napoca, Romania.,Anatomy and Embryology Department, 'Iuliu Hațieganu' University of Medicine and Pharmacy, 400006 Cluj-Napoca, Romania
| | - Adrian Bartoș
- Department of Surgery, Regional Institute of Gastroenterology and Hepatology, 400162 Cluj-Napoca, Romania.,Department of Surgery, 'Iuliu Hațieganu' University of Medicine and Pharmacy, 400162 Cluj-Napoca, Romania
| | - Cristian Liviu Cioltean
- Department of Surgery, Regional Institute of Gastroenterology and Hepatology, 400162 Cluj-Napoca, Romania
| | - Caius Breazu
- Department of Surgery, Regional Institute of Gastroenterology and Hepatology, 400162 Cluj-Napoca, Romania.,Department of Anesthesiology and Intensive Care, Regional Institute of Gastroenterology and Hepatology, 400162 Cluj-Napoca, Romania
| | - Cornel Iancu
- Department of Surgery, Regional Institute of Gastroenterology and Hepatology, 400162 Cluj-Napoca, Romania
| | - Dana Bartoș
- Department of Surgery, Regional Institute of Gastroenterology and Hepatology, 400162 Cluj-Napoca, Romania.,Anatomy and Embryology Department, 'Iuliu Hațieganu' University of Medicine and Pharmacy, 400006 Cluj-Napoca, Romania
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Ablation in Pancreatic Cancer: Past, Present and Future. Cancers (Basel) 2021; 13:cancers13112511. [PMID: 34063784 PMCID: PMC8196600 DOI: 10.3390/cancers13112511] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 04/19/2021] [Accepted: 04/28/2021] [Indexed: 12/15/2022] Open
Abstract
The insidious onset and aggressive nature of pancreatic cancer contributes to the poor treatment response and high mortality of this devastating disease. While surgery, chemotherapy and radiation have contributed to improvements in overall survival, roughly 90% of those afflicted by this disease will die within 5 years of diagnosis. The developed ablative locoregional treatment modalities have demonstrated promise in terms of overall survival and quality of life. In this review, we discuss some of the recent studies demonstrating the safety and efficacy of ablative treatments in patients with locally advanced pancreatic cancer.
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Timmer FE, Geboers B, Nieuwenhuizen S, Schouten EA, Dijkstra M, de Vries JJ, van den Tol MP, de Gruijl TD, Scheffer HJ, Meijerink MR. Locally Advanced Pancreatic Cancer: Percutaneous Management Using Ablation, Brachytherapy, Intra-arterial Chemotherapy, and Intra-tumoral Immunotherapy. Curr Oncol Rep 2021; 23:68. [PMID: 33864144 PMCID: PMC8052234 DOI: 10.1007/s11912-021-01057-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/11/2021] [Indexed: 02/07/2023]
Abstract
PURPOSE OF REVIEW Pancreatic ductal adenocarcinoma (PDAC) is one of the most aggressive neoplasms, bearing a terrible prognosis. Stage III tumors, also known as locally advanced pancreatic cancer (LAPC), are unresectable, and current palliative chemotherapy regimens have only modestly improved survival in these patients. At this stage of disease, interventional techniques may be of value and further prolong life. The aim of this review was to explore current literature on locoregional percutaneous management for LAPC. RECENT FINDINGS Locoregional percutaneous interventional techniques such as ablation, brachytherapy, and intra-arterial chemotherapy possess cytoreductive abilities and have the potential to increase survival. In addition, recent research demonstrates the immunomodulatory capacities of these treatments. This immune response may be leveraged by combining the interventional techniques with intra-tumoral immunotherapy, possibly creating a durable anti-tumor effect. This multimodality treatment approach is currently being examined in several ongoing clinical trials. The use of certain interventional techniques appears to improve survival in LAPC patients and may work synergistically when combined with immunotherapy. However, definitive conclusions can only be made when large prospective (randomized controlled) trials confirm these results.
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Affiliation(s)
- Florentine E.F. Timmer
- Department of Radiology and Nuclear Medicine, Amsterdam UMC (location VUmc), De Boelelaan 1117, 1081 HV Amsterdam, The Netherlands
| | - Bart Geboers
- Department of Radiology and Nuclear Medicine, Amsterdam UMC (location VUmc), De Boelelaan 1117, 1081 HV Amsterdam, The Netherlands
| | - Sanne Nieuwenhuizen
- Department of Radiology and Nuclear Medicine, Amsterdam UMC (location VUmc), De Boelelaan 1117, 1081 HV Amsterdam, The Netherlands
| | - Evelien A.C. Schouten
- Department of Radiology and Nuclear Medicine, Amsterdam UMC (location VUmc), De Boelelaan 1117, 1081 HV Amsterdam, The Netherlands
| | - Madelon Dijkstra
- Department of Radiology and Nuclear Medicine, Amsterdam UMC (location VUmc), De Boelelaan 1117, 1081 HV Amsterdam, The Netherlands
| | - Jan J.J. de Vries
- Department of Radiology and Nuclear Medicine, Amsterdam UMC (location VUmc), De Boelelaan 1117, 1081 HV Amsterdam, The Netherlands
| | - M. Petrousjka van den Tol
- Department of Surgical Oncology, Amsterdam UMC (location VUmc), De Boelelaan 1117, 1081 HV Amsterdam, The Netherlands
| | - Tanja D. de Gruijl
- Department of Medical Oncology, Amsterdam UMC (location VUmc)-Cancer Center Amsterdam, De Boelelaan 1117, 1081 HV Amsterdam, The Netherlands
| | - Hester J. Scheffer
- Department of Radiology and Nuclear Medicine, Amsterdam UMC (location VUmc), De Boelelaan 1117, 1081 HV Amsterdam, The Netherlands
| | - Martijn R. Meijerink
- Department of Radiology and Nuclear Medicine, Amsterdam UMC (location VUmc), De Boelelaan 1117, 1081 HV Amsterdam, The Netherlands
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22
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Duan X, Wang M, Han X, Ren J, Huang G, Ju S, Zhang Q. Combined use of microwave ablation and cell immunotherapy induces nonspecific immunity of hepatocellular carcinoma model mice. Cell Cycle 2020; 19:3595-3607. [PMID: 33283623 DOI: 10.1080/15384101.2020.1853942] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Microwave ablation (MWA) has been widely used in the treatment of solid tumors. Studies have been less conducted on the efficacy of MWA used with cell immunotherapy in treating hepatocellular carcinoma (HCC). The current study aimed at exploring the efficacy of MWA in combination with cell immunotherapy in treating HCC. Hepa1-6 HCC mice were treated by MWA, blockade, or the combined therapy (MWA used with blockade), or left untreated. Survival rates of the mice were plotted by Kaplan-Meier Curve, followed by log-rank test. 25 days after the operation, surviving mice were monitored for tumor recurrence, and tumor volumes were calculated every 5 days. Immunohistochemistry and flow cytometry were performed to detect the numbers of CD4+ and CD8+ cells in the tumors and spleens of mice. The expressions of related cytokines were detected and measured by ELISPOT and ELISA. The results showed that MWA combined with anti-PD-1/anti-CTLA-4 not only increased the survival time, protected the mice against tumor recurrence, but also enhanced the intratumoral infiltration of cytotoxic T lymphocyte and systemic T-cell immune responses induced by MWA through activation of synergistically specific antitumor immunity. In addition, the combined therapy increased T-helper 1 cell (Th1-type) cytokines, but reduced Th2-type cytokines, resulting in the polarization of Th1 cells. T-cell immune responses of HCC cells were activated by MWA. In addition, the combined therapy of MWA and anti-PD-1/anti-CTLA-4 induced Th1-type immune response, and showed specific antitumor immunity.
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Affiliation(s)
- Xuhua Duan
- Department of Interventional Radiology, the First Affiliated Hospital, Zhengzhou University , Zhengzhou, Henan Province, China
| | - Manzhou Wang
- Department of Interventional Radiology, the First Affiliated Hospital, Zhengzhou University , Zhengzhou, Henan Province, China
| | - Xinwei Han
- Department of Interventional Radiology, the First Affiliated Hospital, Zhengzhou University , Zhengzhou, Henan Province, China
| | - Jianzhuang Ren
- Department of Interventional Radiology, the First Affiliated Hospital, Zhengzhou University , Zhengzhou, Henan Province, China
| | - Guohao Huang
- Department of Interventional Radiology, the First Affiliated Hospital, Zhengzhou University , Zhengzhou, Henan Province, China
| | - Shuguang Ju
- Department of Interventional Radiology, the First Affiliated Hospital, Zhengzhou University , Zhengzhou, Henan Province, China
| | - Qinghui Zhang
- Department of Interventional Radiology, the First Affiliated Hospital, Zhengzhou University , Zhengzhou, Henan Province, China
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23
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Granata V, Grassi R, Fusco R, Setola SV, Palaia R, Belli A, Miele V, Brunese L, Grassi R, Petrillo A, Izzo F. Assessment of Ablation Therapy in Pancreatic Cancer: The Radiologist's Challenge. Front Oncol 2020; 10:560952. [PMID: 33330028 PMCID: PMC7731725 DOI: 10.3389/fonc.2020.560952] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 10/30/2020] [Indexed: 12/12/2022] Open
Abstract
This article provides an overview of imaging assessment of ablated pancreatic cancer. Only studies reporting radiological assessment on pancreatic ablated cancer were retained. We found 16 clinical studies that satisfied the inclusion criteria. Radiofrequency ablation and irreversible electroporation have become established treatment modalities because of their efficacy, low complication rates, and availability. Microwave Ablation (MWA) has several advantages over radiofrequency ablation (RFA), which may make it more attractive to treat pancreatic cancer. Electrochemotherapy (ECT) is a very interesting emerging technique, characterized by low complication rate and safety profile. According to the literature, the assessment of the effectiveness of ablative therapies is difficult by means of the Response Evaluation Criteria in Solid Tumors (RECIST) criteria that are not suitable to evaluate the treatment response considering that are related to technique used, the timing of reassessment, and the imaging procedure being used to evaluate the efficacy. RFA causes various appearances on imaging in the ablated zone, correlating to the different effects, such as interstitial edema, hemorrhage, carbonization, necrosis, and fibrosis. Irreversible electroporation (IRE) causes the creation of pores within the cell membrane causing cell death. Experimental studies showed that Diffusion Weigthed Imaging (DWI) extracted parameters could be used to detect therapy effects. No data about functional assessment post MWA is available in literature. Morphologic data extracted by Computed Tomography (CT) or Magnetic Resonance Imaging (MRI) do not allow to differentiate partial, complete, or incomplete response after ECT conversely to functional parameters, obtained with Position Emission Tomography (PET), MRI, and CT.
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Affiliation(s)
- Vincenza Granata
- Radiology Division, Istituto Nazionale Tumori, IRCCS, Fondazione G. Pascale, Naples, Italy
| | - Roberta Grassi
- Radiology Division, Universita’ Degli Studi Della Campania Luigi Vanvitelli, Naples, Italy
| | - Roberta Fusco
- Radiology Division, Istituto Nazionale Tumori, IRCCS, Fondazione G. Pascale, Naples, Italy
| | - Sergio Venanzio Setola
- Radiology Division, Istituto Nazionale Tumori, IRCCS, Fondazione G. Pascale, Naples, Italy
| | - Raffaele Palaia
- Hepatobiliary Surgical Oncology Division, Istituto Nazionale Tumori, IRCCS, Fondazione G. Pascale, Naples, Italy
| | - Andrea Belli
- Hepatobiliary Surgical Oncology Division, Istituto Nazionale Tumori, IRCCS, Fondazione G. Pascale, Naples, Italy
| | - Vittorio Miele
- Department of Radiology, Careggi University Hospital, Florence, Italy
| | - Luca Brunese
- Department of Medicine and Health Sciences “V. Tiberio,” University of Molise, Campobasso, Italy
| | - Roberto Grassi
- Radiology Division, Universita’ Degli Studi Della Campania Luigi Vanvitelli, Naples, Italy
| | - Antonella Petrillo
- Radiology Division, Istituto Nazionale Tumori, IRCCS, Fondazione G. Pascale, Naples, Italy
| | - Francesco Izzo
- Hepatobiliary Surgical Oncology Division, Istituto Nazionale Tumori, IRCCS, Fondazione G. Pascale, Naples, Italy
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Flak RV, Stender MT, Stenholt L, Thorlacius-Ussing O, Petersen LJ. Imaging response evaluation after local ablative treatments in locally advanced pancreatic cancer: an expedited systematic review. HPB (Oxford) 2020; 22:1083-1091. [PMID: 32451236 DOI: 10.1016/j.hpb.2020.04.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 04/15/2020] [Accepted: 04/20/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND Several local ablative modalities have been introduced for the treatment of locally advanced pancreatic cancer (LAPC). However, there is no consensus on how to evaluate the imaging response after treatment. A systematic review was performed regarding the use of imaging for response assessment in LAPC. METHODS A systematic literature search was conducted in PubMed. Studies reporting imaging outcomes were included in the review. Studies were excluded if the imaging outcomes could not be differentiated between different disease stages, tumor histology or surgical approaches. RESULTS Thirty-four studies were included in the analysis. Fourteen studies used standardized response criteria, while six studies did not report the response evaluation method. The rest used self-determined criteria, absolute size comparisons or similar methods. One study found a correlation between early systemic progression (<6 months) and overall survival. CONCLUSION There was notable variation in the use of imaging for response assessment in LAPC. This significantly hinders cross-comparison of results among studies. There is currently only sparse evidence of an association between imaging responses and overall survival. The field calls for standardized recommendations regarding the choice of response assessment method, timing of scans, target definition and reporting of outcomes.
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Affiliation(s)
- R V Flak
- Department of Gastrointestinal Surgery, Aalborg University Hospital, Denmark; Department of Clinical Science, Aalborg University, Denmark.
| | - Mogens T Stender
- Department of Gastrointestinal Surgery, Aalborg University Hospital, Denmark; Department of Clinical Science, Aalborg University, Denmark
| | | | - Ole Thorlacius-Ussing
- Department of Gastrointestinal Surgery, Aalborg University Hospital, Denmark; Department of Clinical Science, Aalborg University, Denmark; Clinical Cancer Research Center, Aalborg University Hospital, Denmark
| | - Lars J Petersen
- Department of Clinical Science, Aalborg University, Denmark; Clinical Cancer Research Center, Aalborg University Hospital, Denmark; Department of Nuclear Medicine, Aalborg University Hospital, Denmark
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25
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Kloth C, Kratzer W, Schmidberger J, Beer M, Clevert DA, Graeter T. Ultrasound 2020 - Diagnostics & Therapy: On the Way to Multimodal Ultrasound: Contrast-Enhanced Ultrasound (CEUS), Microvascular Doppler Techniques, Fusion Imaging, Sonoelastography, Interventional Sonography. ROFO-FORTSCHR RONTG 2020; 193:23-32. [PMID: 32731265 DOI: 10.1055/a-1217-7400] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
BACKGROUND Ultrasound as a non-ionizing imaging procedure is one of the most important diagnostic procedures in everyday clinical practice. The technology is widely used. Due to constant technical innovations, sonographic procedures, such as contrast-enhanced ultrasound (CEUS), sonoelastography, new microvascular Doppler modalities and, as an example of interventional procedures, sonographically controlled microwave ablation (MWA), are becoming increasingly important in diagnostic imaging and interventional medicine alongside CT and MRI. However, this also requires greater expertise, specialization and qualification on the part of users. METHOD This review article provides information about the range of technical innovations in ultrasound in recent years and describes the underlying technology, the clinical applications, and their diagnostic value. These are presented in the context of the current literature, explaining their advantages and disadvantages and their clinical value. RESULTS AND CONCLUSION Contrast-enhanced ultrasound (CEUS), microvascular Doppler modalities, fusion imaging and elastography complement B-scan ultrasound and conventional Doppler procedures for various problems. Microwave ablation (MWA) has a firm place as an ablative procedure for local tumor therapy in different organ systems and can be performed under ultrasound guidance. Thanks to new developments, the possibilities of ultrasound are now greater than ever. Knowledge of the technology, indications, and possible applications of newer procedures is essential for adequate patient care. KEY POINTS · Contrast-enhanced ultrasound (CEUS) allows an increase in sensitivity and specificity in the assessment of parenchymal lesions.. · CEUS allows the microperfusion to be visualized and quantified. For larger vessels, CEUS is an important instrument in diagnosing endoleak after stenting.. · Microvascular Doppler techniques with clutter suppression algorithms allow a more accurate representation of the smallest vessels than regular color or power Doppler.. · Elastography of the liver in diffuse hepatopathies is a noninvasive diagnostic tool to exclude higher grade fibrosis/cirrhosis.. · Microwave ablation (MWA) also offers sonographically controlled ablation of tumors.. CITATION FORMAT · Kloth C, Kratzer W, Schmidberger J et al. Ultrasound 2020 - Diagnostics & Therapy: On the Way to Multimodal Ultrasound: Contrast-Enhanced Ultrasound (CEUS), Microvascular Doppler Techniques, Fusion Imaging, Sonoelastography, Interventional Sonography . Fortschr Röntgenstr 2021; 193: 23 - 32.
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Affiliation(s)
- Christopher Kloth
- Department of Interventional and Diagnostic Radiology, University Hospital Ulm, Germany
| | - Wolfgang Kratzer
- Department of Internal Medicine I, University Hospital Ulm, Germany
| | | | - Meinrad Beer
- Department of Interventional and Diagnostic Radiology, University Hospital Ulm, Germany
| | - Dirk Andre Clevert
- Department of Clinical Radiology, University Hospital Munich Campus Großhadern, München, Germany
| | - Tilmann Graeter
- Department of Interventional and Diagnostic Radiology, University Hospital Ulm, Germany
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26
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Hu C, Li M. In advanced pancreatic cancer: The value and significance of interventional therapy. J Interv Med 2020; 3:118-121. [PMID: 34805920 PMCID: PMC8562155 DOI: 10.1016/j.jimed.2020.07.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Pancreatic cancer is famous as “the king of cancer” due to its high degree of malignancy, rapid course of disease development, and poor prognosis. Relevant epidemiological studies have indicated that with improvement in people’s standard of living, the morbidity and mortality of pancreatic cancer has increased. At the same time, the disease shows an obvious upward trend worldwide. Pancreatic cancer has become a major public health problem that seriously affects the life and health of people. The present review focuses on the recent advances in interventional therapy such as transcatheter arterial infusion, radiofrequency ablation, microwave ablation, and irreversible electroporation of pancreatic cancer.
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Affiliation(s)
- Chao Hu
- Tongji University School of Medicine, No. 1239 Si Ping Road, Shanghai, 200082, China
| | - Maoquan Li
- Department of Interventional & Vascular Surgery, Tenth People's Hospital of Tongji University, No. 301 Middle Yan Chang Road, Shanghai, 200072, China.,Institute of Interventional & Vascular Surgery, Tongji University, No. 301 Middle Yan Chang Road, Shanghai, 200072, China
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27
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Maiettini D, Mauri G, Varano G, Bonomo G, Della Vigna P, Rebonato A, Orsi F. Pancreatic ablation: minimally invasive treatment options. Int J Hyperthermia 2019; 36:53-58. [DOI: 10.1080/02656736.2019.1647354] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Affiliation(s)
- Daniele Maiettini
- Division of Interventional Radiology, IEO, European Institute of Oncology IRCCS, Milan, Italy
| | - Giovanni Mauri
- Division of Interventional Radiology, IEO, European Institute of Oncology IRCCS, Milan, Italy
| | - Gianluca Varano
- Division of Interventional Radiology, IEO, European Institute of Oncology IRCCS, Milan, Italy
| | - Guido Bonomo
- Division of Interventional Radiology, IEO, European Institute of Oncology IRCCS, Milan, Italy
| | - Paolo Della Vigna
- Division of Interventional Radiology, IEO, European Institute of Oncology IRCCS, Milan, Italy
| | - Alberto Rebonato
- Department of Radiology, AO Ospedali Riuniti Marche Nord, Pesaro, Italy
| | - Franco Orsi
- Division of Interventional Radiology, IEO, European Institute of Oncology IRCCS, Milan, Italy
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28
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Paiella S, De Pastena M, Romeo F, D'onofrio M, Fontana M, Pea A, De Marchi G, Crinò SF, Bassi C, Salvia R. Ablation treatments in unresectable pancreatic cancer. MINERVA CHIR 2019; 74:263-269. [PMID: 30600963 DOI: 10.23736/s0026-4733.18.07881-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Ablation treatments have been increasingly applied as an alternative treatment for unresectable locally advanced pancreatic cancer (LAPC). The goal of LAPC therapy is surgical resection with negative margins (R0); however, that can be achieved only in a minority of patients and only following neoadjuvant treatment. Ablation might be useful for those patients with unresectable LAPC that do not progress towards metastatic stage and do not experience a true downstaging. Indeed, some LAPC that tend to grow locally, might be the subgroup of tumors that could benefit from ablation. Experience is necessary to select patients and the technique to adopt, since serious or fatal complications can occur. This review aims to discuss the role of ablation treatments in LAPC, with a unique focus on radiofrequency ablation and irreversible electroporation.
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Affiliation(s)
- Salvatore Paiella
- Unit of General and Pancreatic Surgery, Pancreas Institute, Policlinico GB Rossi, University of Verona, Verona, Italy -
| | - Matteo De Pastena
- Unit of General and Pancreatic Surgery, Pancreas Institute, Policlinico GB Rossi, University of Verona, Verona, Italy
| | - Francesco Romeo
- Unit of General and Pancreatic Surgery, Pancreas Institute, Policlinico GB Rossi, University of Verona, Verona, Italy
| | - Mirko D'onofrio
- Unit of Radiology, Pancreas Institute, Policlinico GB Rossi, University of Verona, Verona, Italy
| | - Martina Fontana
- Unit of General and Pancreatic Surgery, Pancreas Institute, Policlinico GB Rossi, University of Verona, Verona, Italy
| | - Antonio Pea
- Unit of General and Pancreatic Surgery, Pancreas Institute, Policlinico GB Rossi, University of Verona, Verona, Italy
| | - Giulia De Marchi
- Unit of Gastroenterology B, Pancreas Institute, Policliclino GB Rossi, University of Verona, Verona, Italy
| | - Stefano F Crinò
- Unit of Gastroenterology and Digestive Endoscopy, Pancreas Institute, Policliclino GB Rossi, University of Verona, Verona, Italy
| | - Claudio Bassi
- Unit of General and Pancreatic Surgery, Pancreas Institute, Policlinico GB Rossi, University of Verona, Verona, Italy
| | - Roberto Salvia
- Unit of General and Pancreatic Surgery, Pancreas Institute, Policlinico GB Rossi, University of Verona, Verona, Italy
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29
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Paiella S, De Pastena M, D'Onofrio M, Crinò SF, Pan TL, De Robertis R, Elio G, Martone E, Bassi C, Salvia R. Palliative therapy in pancreatic cancer-interventional treatment with radiofrequency ablation/irreversible electroporation. Transl Gastroenterol Hepatol 2018; 3:80. [PMID: 30505967 DOI: 10.21037/tgh.2018.10.05] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2018] [Accepted: 10/11/2018] [Indexed: 12/18/2022] Open
Abstract
Pancreatic cancer (PC) is a solid tumor with still a dismal prognosis. Diagnosis is usually late, when the disease is metastatic or locally advanced (LAPC). Only 20% of PC are amenable to surgery at the time of diagnosis and the vast majority of them, despite radically resected will unavoidably recur. The treatment of LAPC is a challenge. Current guidelines suggest to adopt systemic therapies upfront, based on multi-drugs chemotherapy regimens. However, the vast majority of patients will never experience conversion to surgical exploration and radical resection. Thus, there a large subgroup of LAPC patients where the only therapeutic chance is to offer palliative treatments, such as interventional ablative treatments, in order to obtain a cytoreduction of the tumor, trying to delay its growth and spread. Radiofrequency ablation (RFA) and irreversible electroporation (IRE) demonstrated to be safe and effective in obtaining a local control of the disease with some promising oncological results in terms of overall survival (OS). However, they should be adopted as a treatment strategy to adopt in parallel with other systemic therapies, within multidisciplinary choices. They are not free from complications, even serious, thus they should applied only in specialized centers of pancreatology. This review depicts the state of the art of the two techniques.
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Affiliation(s)
- Salvatore Paiella
- General and Pancreatic Surgery Unit, Pancreas Institute, University of Verona, Policlinico GB Rossi, Piazzale L.A. Scuro, Verona, Italy
| | - Matteo De Pastena
- General and Pancreatic Surgery Unit, Pancreas Institute, University of Verona, Policlinico GB Rossi, Piazzale L.A. Scuro, Verona, Italy
| | - Mirko D'Onofrio
- Radiology Unit, Pancreas Institute, University of Verona, Policlinico GB Rossi, Piazzale L.A. Scuro, Verona, Italy
| | - Stefano Francesco Crinò
- Gastroenterology and Digestive Endoscopy Unit, Pancreas Institute, University of Verona, Policlinico GB Rossi, Piazzale L.A. Scuro, Verona, Italy
| | - Teresa Lucia Pan
- General and Pancreatic Surgery Unit, Pancreas Institute, University of Verona, Policlinico GB Rossi, Piazzale L.A. Scuro, Verona, Italy
| | | | - Giovanni Elio
- General and Pancreatic Surgery Unit, Pancreas Institute, University of Verona, Policlinico GB Rossi, Piazzale L.A. Scuro, Verona, Italy
| | - Enrico Martone
- Radiology Unit, Pancreas Institute, University of Verona, Policlinico GB Rossi, Piazzale L.A. Scuro, Verona, Italy
| | - Claudio Bassi
- General and Pancreatic Surgery Unit, Pancreas Institute, University of Verona, Policlinico GB Rossi, Piazzale L.A. Scuro, Verona, Italy
| | - Roberto Salvia
- General and Pancreatic Surgery Unit, Pancreas Institute, University of Verona, Policlinico GB Rossi, Piazzale L.A. Scuro, Verona, Italy
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