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Ng KKC, Lok HT, Lee KF, Cheung TT, Chia NH, Ng WK, Law CK, Cheung CY, Cheng KC, Cheung SYS, Lai PBS. Comparison of post-hepatectomy long-term survival outcome between non-colorectal non-neuroendocrine and colorectal liver metastases: A population-based propensity-score matching analysis. Surgeon 2024; 22:e100-e108. [PMID: 38081758 DOI: 10.1016/j.surge.2023.11.007] [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: 02/28/2023] [Revised: 11/13/2023] [Accepted: 11/21/2023] [Indexed: 03/19/2024]
Abstract
BACKGROUND Hepatectomy is an established treatment for colorectal liver metastasis (CLM) or neuroendocrine liver metastasis. However, its role in non-colorectal non-neuroendocrine liver metastasis (NCNNLM) is controversial. This study aims to compare long-term survival outcomes after hepatectomy between NCNNLM and CLM in a population-based cohort. METHODS From 2009 to 2018, curative hepatectomy were performed in 964 patients with NCNNLM (n = 133) or CLM (n = 831). Propensity score (PS) matching was performed. Short-term and long-term outcomes were compared between PS-matched groups. Univariate and multivariate analyses were performed to identify prognostic factors affecting survival. RESULTS There were 133 patients in the NCNNLM group and 266 patients in the CLM group. The mortality (1.5 % vs 1.5 %) and morbidity (19.5 % vs 20.3 %) rates were comparable between the two groups. There was no statistically significant difference in 5-year overall (48.9 % vs 39.8 %) and recurrence-free (25.1 % vs 23.4 %) survival rates between NCNNLM and CLM groups. A high pre-operative serum bilirubin level, severe postoperative complications and multiple tumors were independent prognostic factors for poor survival. CONCLUSION Hepatectomy for selected patients with NCNNLM can achieve similar long-term oncological outcomes as those with CLM. High serum bilirubin, severe postoperative complication and multiple tumors are poor prognostic factors for survival.
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Affiliation(s)
- Kelvin K C Ng
- Department of Surgery, The Chinese University of Hong Kong, Hong Kong; Department of Surgery, Prince of Wales Hospital, New Territories, Hong Kong.
| | - Hon-Ting Lok
- Department of Surgery, Prince of Wales Hospital, New Territories, Hong Kong
| | - Kit-Fai Lee
- Department of Surgery, Prince of Wales Hospital, New Territories, Hong Kong
| | - Tan-To Cheung
- Department of Surgery, Queen Mary Hospital, The University of Hong Kong, Hong Kong
| | - Nam-Hung Chia
- Department of Surgery, Queen Elizabeth Hospital, Hong Kong
| | - Wai-Kuen Ng
- Department of Surgery, Princes Margaret Hospital, Hong Kong
| | - Cho-Kwan Law
- Department of Surgery, Tuen Mun Hospital, Hong Kong
| | | | - Kai-Chi Cheng
- Department of Surgery, Kwong Wah Hospital, Hong Kong
| | | | - Paul B S Lai
- Department of Surgery, The Chinese University of Hong Kong, Hong Kong; Department of Surgery, Prince of Wales Hospital, New Territories, Hong Kong
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2
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Bernardi L, Roesel R, Aghayan DL, Majno-Hurst PE, De Dosso S, Cristaudi A. Preoperative chemotherapy in upfront resectable colorectal liver metastases: New elements for an old dilemma? Cancer Treat Rev 2024; 124:102696. [PMID: 38335813 DOI: 10.1016/j.ctrv.2024.102696] [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: 01/09/2024] [Accepted: 02/01/2024] [Indexed: 02/12/2024]
Abstract
The use of preoperative or "neoadjuvant" chemotherapy (NAC) has long been controversial for resectable colorectal liver metastases (CRLM). The European Society of Medical Oncology (ESMO) 2023 guidelines on metastatic colorectal cancer (CRC) indicate a combination of surgical/technical and oncologic/prognostic criteria as the two determinants for allocating patients to NAC or upfront hepatectomy. However, surgical and technical criteria have evolved, and oncologic prognostic criteria date from the pre-modern chemotherapy era and lack prospective validation. The traditional literature is interpreted as not supporting the use of NAC because several studies fail to demonstrate a benefit in overall survival (OS) compared to upfront surgery; however, OS may not be the most appropriate endpoint to consider. Moreover, the commonly quoted studies against NAC contain many limitations that may explain why NAC failed to demonstrate its value. The query of the recent literature focused primarily on other aspects than OS, such as surgical technique, the impact of side effects of chemotherapy, the histological growth pattern of metastases, or the detection of circulating tumor DNA, shows data that support a more widespread use of NAC. These should prompt a critical reappraisal of the use of NAC, leading to a more precise selection of patients who could benefit from it.
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Affiliation(s)
- Lorenzo Bernardi
- Department of Surgery, Lugano Regional Hospital, Ente Ospedaliero Cantonale (EOC), Via Tesserete 46, 6900 Lugano, Switzerland
| | - Raffaello Roesel
- Department of Surgery, Lugano Regional Hospital, Ente Ospedaliero Cantonale (EOC), Via Tesserete 46, 6900 Lugano, Switzerland
| | - Davit L Aghayan
- Department of Surgery, Ringerike Hospital, Vestre Viken Hospital Trust, Drammen, Norway
| | - Pietro E Majno-Hurst
- Department of Surgery, Lugano Regional Hospital, Ente Ospedaliero Cantonale (EOC), Via Tesserete 46, 6900 Lugano, Switzerland; Faculty of Biomedical Sciences, University of Southern Switzerland (USI), Via Buffi 13, 6900 Lugano, Switzerland
| | - Sara De Dosso
- Faculty of Biomedical Sciences, University of Southern Switzerland (USI), Via Buffi 13, 6900 Lugano, Switzerland; Medical Oncology Department, Oncology Institute of Southern Switzerland (IOSI), Ente Ospedaliero Cantonale (EOC), Via A. Gallino 12, 6500 Bellinzona, Switzerland.
| | - Alessandra Cristaudi
- Department of Surgery, Lugano Regional Hospital, Ente Ospedaliero Cantonale (EOC), Via Tesserete 46, 6900 Lugano, Switzerland; Faculty of Biomedical Sciences, University of Southern Switzerland (USI), Via Buffi 13, 6900 Lugano, Switzerland
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3
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Araujo RLC, Carvalho CGCY, Maeda CT, Milani JM, Bugano DG, de Moraes PHZ, Linhares MM. Oncologic aspects of the decision-making process for surgical approach for colorectal liver metastases progressing during chemotherapy. World J Gastrointest Surg 2022; 14:877-886. [PMID: 36185562 PMCID: PMC9521463 DOI: 10.4240/wjgs.v14.i9.877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 07/27/2022] [Accepted: 08/18/2022] [Indexed: 02/07/2023] Open
Abstract
Colorectal cancer represents the third most diagnosed malignancy in the world. The liver is the main site of metastatic disease, affected in 30% of patients with newly diagnosed disease. Complete resection is considered the only potentially curative treatment for colorectal liver metastasis (CRLM), with a 5-year survival rate ranging from 35% to 58%. However, up to 80% of patients have initially unresectable disease, due to extrahepatic disease or bilobar multiple liver nodules. The availability of increasingly effective systemic chemotherapy has contributed to converting patients with initially unresectable liver metastases to resectable disease, improving long-term outcomes, and accessing tumor biology. In recent years, response to preoperative systemic chemotherapy before liver resection has been established as a major prognostic factor. Some studies have demonstrated that patients with regression of hepatic metastases while on chemotherapy have improved outcomes when compared to patients with stabilization or progression of the disease. Even if disease progression during chemotherapy represents an independent negative prognostic factor, some patients may still benefit from surgery, given the role of this modality as the main treatment with curative intent for patients with CRLM. In selected cases, based on size, the number of lesions, and tumor markers, surgery may be offered despite the less favorable prognosis and as an option for non-chemo responders.
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Affiliation(s)
- Raphael L C Araujo
- Department of Surgery, Universidade Federal de São Paulo, São Paulo 04024-002, Brazil
- Department of Oncology, Hospital Israelita Albert Einstein, São Paulo 05652-900, Brazil
- Department of Surgical Oncology, Hospital e Maternidade Brasil Rede D'Or São Luiz, Santo André 09030-590, São Paulo, Brazil
| | - Camila G C Y Carvalho
- Department of Surgical Oncology, Hospital e Maternidade Brasil Rede D'Or São Luiz, Santo André 09030-590, São Paulo, Brazil
| | - Carlos T Maeda
- Department of Surgery, Universidade Federal de São Paulo, São Paulo 04024-002, Brazil
| | - Jean Michel Milani
- Department of Surgery, Universidade Federal de São Paulo, São Paulo 04024-002, Brazil
| | - Diogo G Bugano
- Department of Oncology, Hospital Israelita Albert Einstein, São Paulo 05652-900, Brazil
| | | | - Marcelo M Linhares
- Department of Surgery, Universidade Federal de São Paulo, São Paulo 04024-002, Brazil
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Lee KS, Suchett-Kaye I, Abbadi R, Finch-Jones M, Pope I, Strickland A, Rees J. Microscopic resection margins adversely influence survival rates after surgery for colorectal liver metastases: An open ambidirectional Cohort Study. Int J Surg 2020; 83:8-14. [PMID: 32927149 DOI: 10.1016/j.ijsu.2020.09.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Revised: 08/25/2020] [Accepted: 09/03/2020] [Indexed: 01/17/2023]
Abstract
BACKGROUND Liver resection is the most effective treatment for patients with colorectal liver metastases (CRLMs). Patients with tumour at the resection margin (R1) are reported to have worse survival compared to those with an uninvolved resection margin (R0). Recent data has questioned this finding. This study investigates whether R1 resections adversely influence survival when compared to R0 resections. MATERIAL AND METHODS Patients undergoing surgery for CRLM, identified from a prospectively maintained database, from January 2007 to January 2017, were included. Univariate and multivariate survival analyses were performed. p < 0.05 was significant. RESULTS 282 patients were included. Median age 72 (32-90) years. 236 patients (83.7%) had chemotherapy and surgery, whilst 46 (16.3%) had surgery alone. 149 patients (52.8%) were alive at the end of the study period. R1 resection on univariate survival analysis was associated with better survival (HR 2.12, 95%CI 1.60-4.61, p = 0.0002). Multivariate analysis controlling for age and gender, identified presence of extrahepatic disease (HR 2.03, 95%CI 1.17-3.52, p < 0.001), R0 resection (HR 0.33, 95%CI 0.19-0.59, p = 0.003), primary tumour stage (HR 1.57, 95%CI 1.04-2.40, p = 0.034) and primary tumour differentiation (HR 2.56, 95%CI 1.01-6.46, p = 0.047), as prognostic factors for poorer survival. Five-year and 10-year survival were 54.3% and 41.7% respectively in patients with an R0 resection and, 25.8% and 17.2% in those with an R1 resection. CONCLUSION The presence of extrahepatic disease, an R1 resection margin, advanced T-stage and poorer tumour differentiation were associated with worse survival in CRLM surgery and R0 resection is recommended.
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Affiliation(s)
- Keng Siang Lee
- University Hospitals Bristol NHS Foundation Trust, Bristol, BS2 8HW, UK; Bristol Medical School, University of Bristol, Bristol, BS8 1QU, UK; Centre for Surgical Research, University of Bristol, Canynge Hall, 39, Whatley Road, Bristol, BS8 2PS, UK.
| | - Ivo Suchett-Kaye
- Bristol Medical School, University of Bristol, Bristol, BS8 1QU, UK.
| | - Reyad Abbadi
- University Hospitals Bristol NHS Foundation Trust, Bristol, BS2 8HW, UK.
| | - Meg Finch-Jones
- University Hospitals Bristol NHS Foundation Trust, Bristol, BS2 8HW, UK.
| | - Ian Pope
- University Hospitals Bristol NHS Foundation Trust, Bristol, BS2 8HW, UK.
| | - Andrew Strickland
- University Hospitals Bristol NHS Foundation Trust, Bristol, BS2 8HW, UK.
| | - Jonathan Rees
- University Hospitals Bristol NHS Foundation Trust, Bristol, BS2 8HW, UK; Bristol Medical School, University of Bristol, Bristol, BS8 1QU, UK; Centre for Surgical Research, University of Bristol, Canynge Hall, 39, Whatley Road, Bristol, BS8 2PS, UK.
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5
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Pérez-Santiago L, Dorcaratto D, Garcés-Albir M, Muñoz-Forner E, Huerta Álvaro M, Roselló Keranën S, Sabater L. The actual management of colorectal liver metastases. MINERVA CHIR 2020; 75:328-344. [PMID: 32773753 DOI: 10.23736/s0026-4733.20.08436-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Colorectal cancer is one of the most frequent cancers in the world and between 50% and 60% of patients will develop colorectal liver metastases (CRLM) during the disease. There have been great improvements in the management of CRLM during the last decades. The combination of modern chemotherapeutic and biological systemic treatments with aggressive surgical resection strategies is currently the base for the treatment of patients considered unresectable until few years ago. Furthermore, several new treatments for the local control of CRLM have been developed and are now part of the arsenal of multidisciplinary teams for the treatment of these complex patients. The aim of this review was to summarize and update the management of CRLM, its controversies and relevant evidence.
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Affiliation(s)
- Leticia Pérez-Santiago
- Unit of Liver, Biliary and Pancreatic Surgery, Department of Surgery, Clinic Hospital, INCLIVA Biomedical Research Institute, University of Valencia, Valencia, Spain
| | - Dimitri Dorcaratto
- Unit of Liver, Biliary and Pancreatic Surgery, Department of Surgery, Clinic Hospital, INCLIVA Biomedical Research Institute, University of Valencia, Valencia, Spain -
| | - Marina Garcés-Albir
- Unit of Liver, Biliary and Pancreatic Surgery, Department of Surgery, Clinic Hospital, INCLIVA Biomedical Research Institute, University of Valencia, Valencia, Spain
| | - Elena Muñoz-Forner
- Unit of Liver, Biliary and Pancreatic Surgery, Department of Surgery, Clinic Hospital, INCLIVA Biomedical Research Institute, University of Valencia, Valencia, Spain
| | - Marisol Huerta Álvaro
- Department of Medical Oncology, Clinic Hospital, INCLIVA Biomedical Research Institute, University of Valencia, Valencia, Spain
| | - Susana Roselló Keranën
- Department of Medical Oncology, Clinic Hospital, INCLIVA Biomedical Research Institute, University of Valencia, Valencia, Spain
| | - Luis Sabater
- Unit of Liver, Biliary and Pancreatic Surgery, Department of Surgery, Clinic Hospital, INCLIVA Biomedical Research Institute, University of Valencia, Valencia, Spain
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6
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Araujo RLCD, Figueiredo MN, Sanctis MAD, Romagnolo LGC, Linhares MM, Melani AGF, Marescaux J. Decision making process in simultaneous laparoscopic resection of colorectal cancer and liver metastases. Review of literature. Acta Cir Bras 2020; 35:e202000308. [PMID: 32490901 PMCID: PMC7251979 DOI: 10.1590/s0102-865020200030000008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2019] [Accepted: 02/22/2020] [Indexed: 12/24/2022] Open
Abstract
Purpose: The benefits of laparoscopic approaches to treat colorectal cancer (CRC) and colorectal liver metastases (CRLM) separately are well established. However, there is no consensus about the optimal timing to approach the primary tumor and CRLM, whether simultaneously or staged. The objective of this review with practical reports is to discuss technical aspects required for patient selection to perform simultaneous laparoscopic approaches for CRC and CRLM. Methods: Literature review of oncological factors associated with patient selection for surgical treatment of CRLM and the use of laparoscopy in those cases, and report of technical aspects for simultaneous CRC and CRLM approaches. Results: Simultaneous laparoscopic resection has been successful in many series of selected patients, although it seems to be safer to perform minor and major liver resection with non-extended colorectal resections, and to avoid two high-risk procedures at the same time. Conclusions: Simultaneous CRC and CRLM resections seem to be safe when patients are carefully selected, also considering the risk of recurrence concerning oncologic outcomes. The pre-planning of simultaneous resection is mandatory to plan trocar positioning, procedure sequencing, and patient position.
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7
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Araujo RLC, Milani JM, Armentano DP, Moreira RB, Pinto GSF, de Castro LA, Lucchesi FR. Disappearing colorectal liver metastases: Strategies for the management of patients achieving a radiographic complete response after systemic chemotherapy. J Surg Oncol 2019; 121:848-856. [PMID: 31773747 DOI: 10.1002/jso.25784] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Accepted: 11/14/2019] [Indexed: 12/12/2022]
Abstract
The mainstays of treatment for colorectal liver metastases (CRLMs) are surgery and chemotherapy. Chemotherapeutic benefits of tumor shrinkage and systemic control of micrometastases are in part counterbalanced by chemotoxicity that can modify the liver parenchyma, jeopardizing the detection of CRLM. This review addresses the clinical decision-making process in the context of radiographic and pathologic responses, the preoperative imaging workup, and the approaches to the liver for CRLM, which disappear after systemic chemotherapy.
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Affiliation(s)
- Raphael L C Araujo
- Department of Digestive Surgery, Escola Paulista de Medicina - UNIFESP, São Paulo, Brazil.,Department of Oncology, Americas Medical Service/Brazil, United Health Group, São Paulo, Brazil.,Hospital Israelita Albert Einstein, São Paulo, Brazil.,Post-Graduation Program, Barretos Cancer Hospital, Barretos, Brazil
| | - Jean Michel Milani
- Department of Digestive Surgery, Escola Paulista de Medicina - UNIFESP, São Paulo, Brazil
| | | | - Raphael Brandão Moreira
- Department of Oncology, Americas Medical Service/Brazil, United Health Group, São Paulo, Brazil
| | - Gustavo S F Pinto
- Department of Clinical Oncology, Barretos Cancer Hospital, Barretos, Brazil
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8
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Au KP, Chan ACY. Current status of associating liver partition with portal vein ligation for staged hepatectomy: Comparison with two-stage hepatectomy and strategies for better outcomes. World J Gastroenterol 2019; 25:6373-6385. [PMID: 31798275 PMCID: PMC6881507 DOI: 10.3748/wjg.v25.i43.6373] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2019] [Revised: 07/31/2019] [Accepted: 08/07/2019] [Indexed: 02/06/2023] Open
Abstract
Since its introduction in 2012, associating liver partition with portal vein ligation for staged hepatectomy (ALPPS) has significantly expanded the pool of candidates for liver resection. It offers patients with insufficient liver function a chance of a cure. ALPPS is most controversial when its high morbidity and mortality is concerned. Operative mortality is usually a result of post-hepatectomy liver failure and can be minimized with careful patient selection. Elderly patients have limited reserve for tolerating the demanding operation. Patients with colorectal liver metastasis have normal liver and are ideal candidates. ALPPS for cholangiocarcinoma is technically challenging and associated with fair outcomes. Patients with hepatocellular carcinoma have chronic liver disease and limited parenchymal hypertrophy. However, in selected patients with limited hepatic fibrosis satisfactory outcomes have been produced. During the inter-stage period, serum bilirubin and creatinine level and presence of surgical complication predict mortality after stage II. Kinetic growth rate and hepatobiliary scintigraphy also guide the decision whether to postpone or omit stage II surgery. The outcomes of ALPPS have been improved by a combination of technical modifications. In patients with challenging anatomy, partial ALPPS potentially reduces morbidity, but remnant hypertrophy may compare unfavorably to a complete split. When compared to conventional two-stage hepatectomy with portal vein embolization or portal vein ligation, ALPPS offers a higher resection rate for colorectal liver metastasis without increased morbidity or mortality. While ALPPS has obvious theoretical oncological advantages over two-stage hepatectomy, the long-term outcomes are yet to be determined.
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Affiliation(s)
- Kin Pan Au
- Department of Surgery, Queen Mary Hospital, Hong Kong, China
| | - Albert Chi Yan Chan
- Department of Surgery and State Key Laboratory for Liver Research, The University of Hong Kong, Hong Kong, China
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9
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Araujo RLC, Linhares MM. Pushing the limits of liver surgery for colorectal liver metastases: Current state and future directions. World J Gastrointest Surg 2019; 11:34-40. [PMID: 30842810 PMCID: PMC6397797 DOI: 10.4240/wjgs.v11.i2.34] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2018] [Revised: 01/29/2019] [Accepted: 01/30/2019] [Indexed: 02/06/2023] Open
Abstract
Liver surgery for the treatment of colorectal liver metastases is the standard treatment in a dynamic surgical field with many variables that should be considered in a curative intent scenario. Hepatectomy for colorectal liver metastases has undergone constant changes over the last 30 years, including indications until the need for rescue procedures of recurrent and advanced diseases as well as minimally invasive surgery. These advancements in liver surgery have not only resulted from overall improvements in the surgical field but have also resulted from a better understanding of the biological behavior of the disease, liver regeneration, and homeostasis during and after surgery. Improvements in anesthesiology, intensive care medicine, radiology, and surgical devices have correlated with further advancements of hepatectomies. Moreover, changes are still forthcoming, and both fields of augmented reality and artificial intelligence will likely have future contributions in this field in regard to both diagnoses and the planning of procedures. The aim of this editorial is to emphasize several aspects that have contributed to the paradigm shifts in colorectal liver metastases surgery over the last three decades as well as to discuss the factors concerning patient selection and the technical aspects of liver surgery. Finally, this editorial will highlight the promising new features of this surgery for diagnoses and treatments in this field.
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Affiliation(s)
- Raphael LC Araujo
- Department of Digestive Surgery, Escola Paulista de Medicina - UNIFESP, São Paulo SP 04023-062, Brazil
- Department of Oncology, Americas Medical Service/Brazil, United Health Group, Sao Paulo SP 04023-062, Brazil
- Postgraduation Program, Barretos Cancer Hospital, Barretos, São Paulo SP 04023-062, Brazil
| | - Marcelo M Linhares
- Department of Digestive Surgery, Escola Paulista de Medicina - UNIFESP, São Paulo SP 04023-062, Brazil
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10
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Krasnick BA, Sindram D, Simo K, Goss R, Bharadwaj J, Howk K, Herdina KA, Hammill CW. Tumor Ablation Using 3-Dimensional Electromagnetic-Guided Ultrasound Versus Standard Ultrasound in a Porcine Model. Surg Innov 2019; 26:420-426. [DOI: 10.1177/1553350619825717] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Introduction. The objective of this study was to compare the placement of ablation needles using 3-dimensional electromagnetic-guided ultrasound (guided) to standard ultrasound guidance (standard) in both laparoscopic surgery and open surgery. Endpoints for this study included targeting accuracy and number of required needle withdrawals and reorientations. Methods. Using a porcine model, fiducial markers were placed into the kidney and liver to represent tumors. Navigation and identification of target sites was achieved using standard or guided ultrasound. Intraprocedural observations as well as the number of needle placement attempts per target were recorded. Three board-certified general surgeons performed the navigation and ablation procedures. After completion of the navigation and ablation procedures, necropsy was performed. The position of the ablation zones relative to the fiducial markers was recorded. Results. A total of 48 procedures were performed across 6 animals (50% open and 50% laparoscopic). Overall, the guided ablations required 50% fewer attempts to successfully target the marker ( P = .01). There was a 62% reduction of attempts for guided laparoscopic ablation ( P = .006). On subgroup analysis of laparoscopic ablation, the benefit remained for liver ( P = .041) ablations, but not for renal ablations ( P = .093). There was no significant difference between the groups with regard to targeting accuracy (91.3% guided vs 95.4% standard, P = .58). Conclusions. The number of targeting attempts required during laparoscopic ablation procedures was significantly less with guided than with standard ultrasound, particularly for laparoscopic ablation of liver lesions. These findings suggest that the guided ultrasound can potentially reduce complications during laparoscopic ablation procedures.
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11
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Marques MC, C Ribeiro HS, Costa WL, de Jesus VHF, de Macedo MP, Diniz AL, Godoy AL, Farias IC, Aguiar S, Riechelmann RSP, S Begnami MDF, Coimbra FJF. Is primary sidedness a prognostic factor in patients with resected colon cancer liver metastases (CLM)? J Surg Oncol 2018; 117:858-863. [PMID: 29611198 DOI: 10.1002/jso.25048] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Accepted: 02/21/2018] [Indexed: 12/13/2022]
Abstract
BACKGROUND AND OBJECTIVES Recent studies have suggested that sidedness of origin from colorectal adenocarcinomas is a predictor of survival, however the impact of this factor in patients with resected colon cancer liver metastases (CLM) is not clear. So, in this study, we compared clinic and pathologic characteristics and long-term survival of patients with resected CLM according to the primary tumor location. METHODS This is a retrospective analyzes of a prospective database. Patients with resected CLM from 1998 to 2012 were included. Right colon included tumors from cecum to middle transverse colon, and left colon included tumors from splenic flexure to sigmoid. RESULTS One hundred fifty-one patients were included, 27 right colon and 124 left colon. In the latter group, there were more patients with synchronous disease (67.7 × 6.2%, P = 0.026) and a higher CEA (22.0 × 11.7 ng/mL, P = 0.001). However, K-Ras mutation was more frequent in right sided tumors (75.0 × 24.1%, P = 0.001). There was no difference in long term survival in both groups in this series even when adjusted for the confounding variables. CONCLUSION Sidedness do not seem to be a predictor of long term survival in patients with resected colon cancer liver metastases.
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Affiliation(s)
- Márcio C Marques
- Abdominal Surgery Department, AC Camargo Cancer Center, São Paulo, SP, Brazil
| | - Héber S C Ribeiro
- Abdominal Surgery Department, AC Camargo Cancer Center, São Paulo, SP, Brazil
| | - Wílson L Costa
- Abdominal Surgery Department, AC Camargo Cancer Center, São Paulo, SP, Brazil
| | | | - Mariana P de Macedo
- Anatomic Pathology Department, AC Camargo Cancer Center, São Paulo, SP, Brazil
| | - Alessandro L Diniz
- Abdominal Surgery Department, AC Camargo Cancer Center, São Paulo, SP, Brazil
| | - André L Godoy
- Abdominal Surgery Department, AC Camargo Cancer Center, São Paulo, SP, Brazil
| | - Igor C Farias
- Abdominal Surgery Department, AC Camargo Cancer Center, São Paulo, SP, Brazil
| | - Samuel Aguiar
- Pelvic Surgery Department, AC Camargo Cancer Center, São Paulo, SP, Brazil
| | | | | | - Felipe J F Coimbra
- Abdominal Surgery Department, AC Camargo Cancer Center, São Paulo, SP, Brazil
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12
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Lymphangiogenic Gene Expression Is Associated With Lymph Node Recurrence and Poor Prognosis After Partial Hepatectomy for Colorectal Liver Metastasis. Ann Surg 2017; 266:765-771. [PMID: 28742689 DOI: 10.1097/sla.0000000000002430] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
OBJECTIVES To investigate the relevance of lymphangiogenic gene expression in primary and liver metastasis of colorectal cancer (CRC) and identify determinants of lymphatic invasion. BACKGROUND Lymphatic development promoting vascular endothelial growth factor C (VEGFC) is associated with poor outcome in primary CRC. For colorectal liver metastasis (CRLM), intrahepatic lymph invasion and lymph node metastasis are poor prognostic factors. Exact biological factors promoting lymphatic involvement remain elusive, just as the association with molecular subtypes of CRC. METHODS We designed a lymphangiogenic gene set (VEGFC, Nrp-2, PDPN, LYVE-1, MRC1, CCL-21) and applied it to large datasets of CRC. Gene expression of the lymphangiogenic signature was assessed in resected CRLM specimens by Rt-QPCR. In vitro experiments were performed with colon cancer cell line Colo320 (high Nrp-2 expression) and human dermal microvascular lymphatic endothelial cells (LECs). RESULTS Lymphangiogenic gene expression was associated with poor prognosis in both primary and liver metastasis of CRC. CRLM with high expression of consensus molecular subtype-4 identifier genes also exhibited high lymphangiogenic gene expression. Lymph node recurrence following CRLM resection was associated with high expression of VEGFC and Nrp-2. Blocking Nrp-2 significantly reduced invasion of Colo320 cells through an LEC monolayer. CONCLUSIONS Lymphangiogenic gene expression is correlated with worse prognosis and consensus molecular subtype-4 in both primary and liver metastatic CRC. VEGFC and Nrp-2 expression may be predictive of lymph node involvement in recurrence after resection of CRLM. Nrp-2, expressed on both tumor and LECs, may have a mechanistic role in lymphatic invasion and is a potential novel target in CRC.
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