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da Silva EB, Ramina R, Novak Filho JL, Jung GS, Bornancin GX, Neto MC. Pharmaceutical equivalent 5-aminolevulinic acid fluorescence guided resection of central nervous system tumors: feasibility, safeness and cost-benefit considerations. J Neurooncol 2024; 168:555-562. [PMID: 38709355 DOI: 10.1007/s11060-024-04698-z] [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: 03/27/2024] [Accepted: 04/25/2024] [Indexed: 05/07/2024]
Abstract
PURPOSE 5-aminolevulinic acid (5-ALA) fluorescence-guided resection (FGR) has been an essential tool in the 'standard of care' of malignant gliomas. Over the last two decades, its indications have been extended to other neoplasms, such as metastases and meningiomas. However, its availability and cost-benefit still pose a challenge for widespread use. The present article reports a retrospective series of 707 cases of central nervous system (CNS) tumors submitted to FGR with pharmacological equivalent 5-ALA and discusses financial implications, feasibility and safeness. METHODS From December 2015 to February 2024, a retrospective single institution series of 707 cases of 5-ALA FGR were analyzed. Age, gender, 5-ALA dosage, intraoperative fluorescence finding, diagnosis and adverse effects were recorded. Financial impact in the surgical treatment cost were also reported. RESULTS there was an additional cost estimated in $300 dollars for each case, increasing from 2,37 to 3,28% of the total hospitalization cost. There were 19 (2,69%) cases of asymptomatic photosensitive reaction and 2 (0,28%) cases of photosensitive reaction requiring symptomatic treatment. 1 (0,14%) patient had a cutaneous rash sustained for up to 10 days. No other complications related to the method were evident. In 3 (0,42%) cases of patients with intracranial hypertension, there was vomiting after administration. CONCLUSION FGR with pharmacological equivalent 5-ALA can be considered safe and efficient and incorporates a small increase in hospital expenses. It constitutes a reliable solution in avoiding prohibitive costs worldwide, especially in countries where commercial 5-ALA is unavailable.
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Affiliation(s)
- Erasmo Barros da Silva
- Division of Neurooncology, Department of Neurosurgery, Instituto de Neurologia de Curitiba, Rua Jeremias Maciel Perretto, 300 - Campo Comprido, 81210-310, Curitiba, PR, Brazil.
| | - Ricardo Ramina
- Division of Neurooncology, Department of Neurosurgery, Instituto de Neurologia de Curitiba, Rua Jeremias Maciel Perretto, 300 - Campo Comprido, 81210-310, Curitiba, PR, Brazil
| | - Jorge Luis Novak Filho
- Division of Neurooncology, Department of Neurosurgery, Instituto de Neurologia de Curitiba, Rua Jeremias Maciel Perretto, 300 - Campo Comprido, 81210-310, Curitiba, PR, Brazil
| | - Gustavo Simiano Jung
- Division of Neurooncology, Department of Neurosurgery, Instituto de Neurologia de Curitiba, Rua Jeremias Maciel Perretto, 300 - Campo Comprido, 81210-310, Curitiba, PR, Brazil
| | - Giulia Xavier Bornancin
- Division of Neurooncology, Department of Neurosurgery, Instituto de Neurologia de Curitiba, Rua Jeremias Maciel Perretto, 300 - Campo Comprido, 81210-310, Curitiba, PR, Brazil
| | - Maurício Coelho Neto
- Division of Neurooncology, Department of Neurosurgery, Instituto de Neurologia de Curitiba, Rua Jeremias Maciel Perretto, 300 - Campo Comprido, 81210-310, Curitiba, PR, Brazil
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de Laurentis C, Pasquali C, Beuriat PA, Mottolese C, Szathmari A, Vinchon M, Di Rocco F. Role of sodium fluorescein in pediatric low-grade glioma surgery: an update. Childs Nerv Syst 2024:10.1007/s00381-024-06402-y. [PMID: 38662222 DOI: 10.1007/s00381-024-06402-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Accepted: 04/12/2024] [Indexed: 04/26/2024]
Abstract
PURPOSE Complete surgical resection is still the mainstay in the treatment of central nervous system low-grade tumors, eventually resulting curative. The complete surgical removal of these lesions, however, may be difficult in some cases because of their infiltrative nature. Intraoperative adjuncts may be a game changer. Sodium fluorescein (SF) is among the ideal candidates as intraoperative tools to favor the actual recognition of the tumor extension, since it accumulates in areas of altered blood-brain barrier, a typical characteristic of pediatric gliomas, and has a low rate of adverse events. This work proposes an update of previous works about the evaluation of the feasibility and usefulness of a systematic use of SF in a low-grade lesion group of pediatric patients. METHODS Pediatric patients operated on for a resection or a biopsy of a low-grade glial or glioneuronal lesion (WHO grade I and II) at our Institution between September 2021 and December 2023, with the intraoperative use of sodium fluorescein (SF), were enrolled in the study. We collected pre-operative and postoperative clinical and radiological data, intraoperative findings, and post-operative pathological diagnoses. RESULTS No adverse events were registered related to the intraoperative use of SF. SF appeared useful for the localization of boundaries of tumors, especially when characterized by a high degree of infiltration or by a deep-seated location, and for the checking of possible tumor remnants at the end of surgery. A good tumor-to-healthy tissue contrast was registered when tumor visualization was in a range between 1 to 2 h and 30 min after SF injection. Possible "false positives" due to intraoperative vascular wall injury and clearance of SF from both tumor and healthy tissue were observed in some cases and still remain open issues. CONCLUSIONS SF is a feasible and safe intraoperative adjunct tool in the surgical removal of pediatric low-grade tumors. SF may show its usefulness especially in selected cases, such as deep-seated lesions and infiltrating tumors. Its safety profile, user-friendly management, and potential utility in both tumor resections and neuronavigated biopsies favor its wider use in the surgical treatment of pediatric low-grade tumors.
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Affiliation(s)
- Camilla de Laurentis
- Pediatric Neurosurgery Unit, Hôpital Femme Mère Enfant, Lyon, France
- Functional Neurosurgery Unit, Hôpital Pierre Wertheimer, Lyon, France
| | - Claudia Pasquali
- Pediatric Neurosurgery Unit, Hôpital Femme Mère Enfant, Lyon, France
| | - Pierre-Aurélien Beuriat
- Pediatric Neurosurgery Unit, Hôpital Femme Mère Enfant, Lyon, France
- Functional Neurosurgery Unit, Hôpital Pierre Wertheimer, Lyon, France
- Department of Medicine and Surgery, Université Claude Bernard, Lyon 1, Lyon, France
| | - Carmine Mottolese
- Pediatric Neurosurgery Unit, Hôpital Femme Mère Enfant, Lyon, France
| | - Alexandru Szathmari
- Pediatric Neurosurgery Unit, Hôpital Femme Mère Enfant, Lyon, France
- Functional Neurosurgery Unit, Hôpital Pierre Wertheimer, Lyon, France
| | - Matthieu Vinchon
- Pediatric Neurosurgery Unit, Hôpital Femme Mère Enfant, Lyon, France
| | - Federico Di Rocco
- Pediatric Neurosurgery Unit, Hôpital Femme Mère Enfant, Lyon, France.
- Department of Medicine and Surgery, Université Claude Bernard, Lyon 1, Lyon, France.
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Falco J, Broggi M, Rubiu E, Schiariti M, Restelli F, Mazzapicchi E, La Corte E, Ferroli P, Acerbi F. The Application of Sodium Fluorescein in Resection of Medulloblastoma Under YELLOW 560 Filter: Feasibility and Preliminary Results of a Monocentric Cohort and Systematic Review. World Neurosurg 2024; 183:e386-e394. [PMID: 38154682 DOI: 10.1016/j.wneu.2023.12.105] [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: 08/26/2023] [Revised: 12/18/2023] [Accepted: 12/18/2023] [Indexed: 12/30/2023]
Abstract
BACKGROUND Maximizing surgical resection of medulloblastoma (MB) affects overall survival; nevertheless, surgical resection remains a because of the infiltrative behavior of this tumor. Several dyes have been tested for improving tumor visualization; however, few reports with different protocols of fluorophores use are available and the results are inconsistent. Hence, we report our experience with sodium fluorescein in MB surgery, aiming to assess the role of this technique on the extent of resection. Furthermore, we performed a literature review of this topic. METHODS Fluorescence characteristics, extent of resection, and clinical outcome were analyzed in 9 consecutively operated patients with MB. A comprehensive literature search and review for English-language articles concerning fluorescein application in MB was conducted. RESULTS In our cohort, no side effect related to fluorescein occurred; all tumors presented with an intense or moderate yellow-green enhancement, and fluorescein was judged fundamental in distinguishing tumors from viable tissue in 7 of 9 cases. Gross total resection or near-total resection (i.e., a residual tumor volume <1.5 cm3) was achieved in 8 patients. The review explored the different techniques and surgical interpretations as well as surgical radicality; we did not find a homogenous protocol for fluorescein injection in the published articles. Fluorescence appeared moderate or intense in almost all cases, with a high percentage of usefulness and consensual achievement of a high rate of gross total resection. CONCLUSIONS Based on these results, we can infer that fluorescein-guided surgical resection is a safe and valuable method for patients with MB.
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Affiliation(s)
- Jacopo Falco
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milano, Italy
| | - Morgan Broggi
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milano, Italy.
| | - Emanuele Rubiu
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milano, Italy
| | - Marco Schiariti
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milano, Italy
| | - Francesco Restelli
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milano, Italy
| | - Elio Mazzapicchi
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milano, Italy
| | - Emanuele La Corte
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milano, Italy
| | - Paolo Ferroli
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milano, Italy
| | - Francesco Acerbi
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milano, Italy; Department of Neurosurgery, Experimental Microsurgical Laboratory, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milano, Italy
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Alshareef M, Bsat S, Hankinson TC. Operative Adjuncts in Pediatric Brain Tumor Surgery with a Focus on Suprasellar Tumors. Adv Tech Stand Neurosurg 2024; 53:13-25. [PMID: 39287800 DOI: 10.1007/978-3-031-67077-0_2] [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: 09/19/2024]
Abstract
The primary objective of surgery for brain tumor resection has always been maximizing safe resection while minimizing the risk to normal brain tissue. Technological advances applied in the operating room help surgeons to achieve this objective. This chapter discusses specific tools and approaches in the operating environment that target safe surgery for brain tumors in children, with a focus on pathologies in the sellar/suprasellar region. Particular focus is given to tools that help with safe patient positioning; intraoperative imaging modalities; and chemical visualization adjuncts. Both static (preoperative images used for neuronavigation) and dynamic (images updated during the procedure) intraoperative imaging modalities are discussed. There is further overview of operative rehearsal and preparation strategies, which are rapidly evolving as virtual reality systems become more commonplace. While the rapid evolution of intraoperative adjuncts in neurosurgery means the status of a given technology as novel is quite transient, this chapter offers a snapshot of the current state of advanced intraoperative tools for pediatric brain tumor surgery.
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Affiliation(s)
- Mohammed Alshareef
- Division of Pediatric Neurosurgery, Children's Hospital Colorado, University of Colorado School of Medicine, Aurora, CO, USA
| | - Shadi Bsat
- Division of Pediatric Neurosurgery, Children's Hospital Colorado, University of Colorado School of Medicine, Aurora, CO, USA
| | - Todd C Hankinson
- Division of Pediatric Neurosurgery, Children's Hospital Colorado, University of Colorado School of Medicine, Aurora, CO, USA.
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Leon R, Fabelo H, Ortega S, Cruz-Guerrero IA, Campos-Delgado DU, Szolna A, Piñeiro JF, Espino C, O'Shanahan AJ, Hernandez M, Carrera D, Bisshopp S, Sosa C, Balea-Fernandez FJ, Morera J, Clavo B, Callico GM. Hyperspectral imaging benchmark based on machine learning for intraoperative brain tumour detection. NPJ Precis Oncol 2023; 7:119. [PMID: 37964078 PMCID: PMC10646050 DOI: 10.1038/s41698-023-00475-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 10/24/2023] [Indexed: 11/16/2023] Open
Abstract
Brain surgery is one of the most common and effective treatments for brain tumour. However, neurosurgeons face the challenge of determining the boundaries of the tumour to achieve maximum resection, while avoiding damage to normal tissue that may cause neurological sequelae to patients. Hyperspectral (HS) imaging (HSI) has shown remarkable results as a diagnostic tool for tumour detection in different medical applications. In this work, we demonstrate, with a robust k-fold cross-validation approach, that HSI combined with the proposed processing framework is a promising intraoperative tool for in-vivo identification and delineation of brain tumours, including both primary (high-grade and low-grade) and secondary tumours. Analysis of the in-vivo brain database, consisting of 61 HS images from 34 different patients, achieve a highest median macro F1-Score result of 70.2 ± 7.9% on the test set using both spectral and spatial information. Here, we provide a benchmark based on machine learning for further developments in the field of in-vivo brain tumour detection and delineation using hyperspectral imaging to be used as a real-time decision support tool during neurosurgical workflows.
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Affiliation(s)
- Raquel Leon
- Research Institute for Applied Microelectronics, University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain.
| | - Himar Fabelo
- Research Institute for Applied Microelectronics, University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain.
- Fundación Canaria Instituto de Investigación Sanitaria de Canarias (FIISC), Las Palmas de Gran Canaria, Spain.
| | - Samuel Ortega
- Research Institute for Applied Microelectronics, University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain
- Nofima, Norwegian Institute of Food Fisheries and Aquaculture Research, Tromsø, Norway
| | - Ines A Cruz-Guerrero
- Facultad de Ciencias, Universidad Autónoma de San Luis Potosí, San Luis Potosí, México
- Department of Biostatistics and Informatics, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
- Department of Pediatric Plastic and Reconstructive Surgery, Children's Hospital Colorado, Aurora, Colorado, USA
| | - Daniel Ulises Campos-Delgado
- Facultad de Ciencias, Universidad Autónoma de San Luis Potosí, San Luis Potosí, México
- Instituto de Investigación en Comunicación Óptica, Universidad Autónoma de San Luis Potosí, San Luis Potosí, México
| | - Adam Szolna
- Department of Neurosurgery, University Hospital Doctor Negrin of Gran Canaria, Las Palmas de Gran Canaria, Spain
| | - Juan F Piñeiro
- Instituto de Investigación en Comunicación Óptica, Universidad Autónoma de San Luis Potosí, San Luis Potosí, México
| | - Carlos Espino
- Department of Neurosurgery, University Hospital Doctor Negrin of Gran Canaria, Las Palmas de Gran Canaria, Spain
| | - Aruma J O'Shanahan
- Department of Neurosurgery, University Hospital Doctor Negrin of Gran Canaria, Las Palmas de Gran Canaria, Spain
| | - Maria Hernandez
- Department of Neurosurgery, University Hospital Doctor Negrin of Gran Canaria, Las Palmas de Gran Canaria, Spain
| | - David Carrera
- Department of Neurosurgery, University Hospital Doctor Negrin of Gran Canaria, Las Palmas de Gran Canaria, Spain
| | - Sara Bisshopp
- Department of Neurosurgery, University Hospital Doctor Negrin of Gran Canaria, Las Palmas de Gran Canaria, Spain
| | - Coralia Sosa
- Department of Neurosurgery, University Hospital Doctor Negrin of Gran Canaria, Las Palmas de Gran Canaria, Spain
| | - Francisco J Balea-Fernandez
- Research Institute for Applied Microelectronics, University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain
- Department of Psychology, Sociology and Social Work, University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain
| | - Jesus Morera
- Department of Neurosurgery, University Hospital Doctor Negrin of Gran Canaria, Las Palmas de Gran Canaria, Spain
| | - Bernardino Clavo
- Fundación Canaria Instituto de Investigación Sanitaria de Canarias (FIISC), Las Palmas de Gran Canaria, Spain
- Research Unit, University Hospital Doctor Negrin of Gran Canaria, Las Palmas de Gran Canaria, Spain
| | - Gustavo M Callico
- Research Institute for Applied Microelectronics, University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain
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Patel N, Felton K, Bhattacharya S, Almira-Suarez MI, Eze A, Turner J, Keating R, Oluigbo C, Schore RJ, Kilburn L, Packer RJ, Myseros JS, Bornhorst M. Surveillance imaging and early surgical intervention for improved CNS tumor outcomes in children with Li-Fraumeni syndrome: Children's National Hospital experience and literature review. J Neurosurg Pediatr 2023; 31:258-267. [PMID: 36609372 PMCID: PMC11177722 DOI: 10.3171/2022.12.peds22261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Accepted: 12/01/2022] [Indexed: 01/08/2023]
Abstract
OBJECTIVE Li-Fraumeni syndrome (LFS) is a cancer predisposition syndrome caused by germline mutations in the TP53 gene. CNS tumors are the fourth most common tumor type in LFS, and recent screening guidelines demonstrate that early tumor detection is associated with improved long-term survival. However, there is a paucity of data regarding surgical intervention when lesions are identified in asymptomatic patients on surveillance imaging. The authors investigated this through their cohort and literature review. METHODS The cohort consisted of children seen in the Pediatric Cancer Genetics Program at Children's National Hospital between August 2012 and August 2021. The authors also include a PubMed (MEDLINE) literature search of articles from 2006 to 2021 related to surveillance and CNS tumors in patients with LFS. Studies in which CNS tumors were not identified or detailed patient information was not provided were excluded. Patients from the selected articles and the authors' cohort were added for further analysis. RESULTS Between August 2012 and August 2021, 10 children with LFS and CNS tumors were assessed at Children's National Hospital: 4 who were known carriers of the TP53 mutation had CNS lesions found on surveillance imaging, whereas 6 presented with symptomatic CNS lesions and were either known or subsequently found to have germline TP53 mutations. The literature search identified 148 articles, 7 of which were included in this review. Patients from the literature and the present cohort were added for a total of 56 CNS lesions. A majority of the low-grade CNS lesions (22/24, 92%) were found on surveillance protocols in asymptomatic patients, whereas the majority of the high-grade lesions (22/26, 85%) presented in symptomatic patients who were not undergoing routine surveillance or as the initial diagnosis of LFS. The authors noted a significant survival advantage in pediatric patients with low-grade lesions, with an overall survival of 100% at 30 months. Minor limitations of the study include patient sample size and limitations in the patient cohort due to this being a retrospective rather than a prospective study. CONCLUSIONS Data presented in this study support surveillance protocols in LFS and demonstrate the importance of dedicated CNS imaging and early surgical intervention when lesions are identified. Systematic review registration no.: CRD42022372610 (www.crd.york.ac.uk/prospero).
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Affiliation(s)
- Nirali Patel
- Division of Neurosurgery, Children’s National Hospital, Washington, DC
| | - Kathleen Felton
- Department of Pediatric Hematology/Oncology, University of Saskatchewan College of Medicine, Saskatoon, Saskatchewan, Canada
| | | | | | - Augustine Eze
- Center for Genetics Medicine Research, Children’s National Hospital
- Brain Tumor Institute, Children’s National Hospital
| | - Joyce Turner
- Division of Genetics and Metabolism, Children’s National Hospital
| | - Robert Keating
- Division of Neurosurgery, Children’s National Hospital, Washington, DC
- Brain Tumor Institute, Children’s National Hospital
| | - Chima Oluigbo
- Division of Neurosurgery, Children’s National Hospital, Washington, DC
- Brain Tumor Institute, Children’s National Hospital
| | - Reuven J. Schore
- Division of Hematology/Oncology, Children’s National Hospital
- Department of Pediatrics, School of Medicine and Health Sciences, George Washington University
| | - Lindsay Kilburn
- Division of Hematology/Oncology, Children’s National Hospital
- Department of Pediatrics, School of Medicine and Health Sciences, George Washington University
- Brain Tumor Institute, Children’s National Hospital
| | - Roger J. Packer
- Brain Tumor Institute, Children’s National Hospital
- Center for Neuroscience and Behavioral Medicine, Children’s National Hospital, Washington, DC
| | - John S. Myseros
- Division of Neurosurgery, Children’s National Hospital, Washington, DC
- Brain Tumor Institute, Children’s National Hospital
| | - Miriam Bornhorst
- Center for Genetics Medicine Research, Children’s National Hospital
- Division of Hematology/Oncology, Children’s National Hospital
- Department of Pediatrics, School of Medicine and Health Sciences, George Washington University
- Brain Tumor Institute, Children’s National Hospital
- Center for Neuroscience and Behavioral Medicine, Children’s National Hospital, Washington, DC
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7
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Cheok SK, Zada G. Commentary: Transmiddle Cerebellar Peduncle Approach to a Large Pontine Tumor: 2-Dimensional Operative Video. Oper Neurosurg (Hagerstown) 2023; 24:e114-e115. [PMID: 36537817 DOI: 10.1227/ons.0000000000000551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Accepted: 09/29/2022] [Indexed: 01/14/2023] Open
Affiliation(s)
- Stephanie Kim Cheok
- Department of Neurological Surgery, Keck School of Medicine at University of Southern California, Los Angeles, California, USA
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Mui OOT, Murray DB, Walsh B, Crimmins DW, Caird JD. Spontaneous intracerebral haemorrhage secondary to 5-ALA-induced thrombocytopaenia in a paediatric patient: case report and literature review. Childs Nerv Syst 2023; 39:1051-1058. [PMID: 36662275 PMCID: PMC10160215 DOI: 10.1007/s00381-023-05846-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Accepted: 01/10/2023] [Indexed: 01/21/2023]
Abstract
INTRODUCTION The primary objective of neurosurgical management of malignant gliomas is maximal safe resection of the tumour. One of the main obstacles in achieving this is the ability to accurately discriminate between tumour edges and the surrounding healthy brain tissue. The use of fluorescence-guided surgery utilising 5-aminolevulinic acid (5-ALA), first introduced more than 20 years ago, has become an invaluable adjunct in high-grade glioma surgery in adults. However, as 5-ALA is not licensed for use in paediatric patients, the safety profile for such use remains undetermined. CASE REPORT We describe the case of a 4-year-old boy who underwent 5-ALA-guided resection of a fourth ventricle anaplastic ependymoma. Although complete resection was achieved and the patient awoke from surgery well with no neurological deficits, the patient developed acute transaminitis, anaemia, thrombocytopaenia and coagulopathy postoperatively. The patient had a sudden neurological deterioration on postoperative day 2; imaging revealed that he had suffered a spontaneous right frontal intracerebral haemorrhage. The patient returned to theatre for surgical decompression and evacuation of the haematoma, and ultimately went on to make a full recovery. CONCLUSION The use of 5-ALA in paediatric patients can be helpful in maximising surgical resection, but the associated safety profile remains undefined. Further research is urgently warranted in order to characterise the efficacy and risk of the use of 5-ALA in the paediatric population.
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Affiliation(s)
- Olivia O T Mui
- School of Medicine and Medical Science, University College Dublin, Dublin, Ireland. .,Royal College of Surgeons in Ireland, Dublin, Ireland.
| | - Daniel B Murray
- School of Medicine and Medical Science, University College Dublin, Dublin, Ireland.,Royal College of Surgeons in Ireland, Dublin, Ireland.,Temple Street Children's University Hospital, Dublin, Ireland
| | - Bill Walsh
- Temple Street Children's University Hospital, Dublin, Ireland
| | - Darach W Crimmins
- School of Medicine and Medical Science, University College Dublin, Dublin, Ireland.,Royal College of Surgeons in Ireland, Dublin, Ireland.,Temple Street Children's University Hospital, Dublin, Ireland
| | - John D Caird
- Royal College of Surgeons in Ireland, Dublin, Ireland.,Temple Street Children's University Hospital, Dublin, Ireland
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9
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Multifunctional Photoactive Nanomaterials for Photodynamic Therapy against Tumor: Recent Advancements and Perspectives. Pharmaceutics 2022; 15:pharmaceutics15010109. [PMID: 36678738 PMCID: PMC9866498 DOI: 10.3390/pharmaceutics15010109] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/16/2022] [Accepted: 12/20/2022] [Indexed: 12/31/2022] Open
Abstract
Numerous treatments are available for cancer, including chemotherapy, immunotherapy, radiation therapy, hormone therapy, biomarker testing, surgery, photodynamic therapy, etc. Photodynamic therapy (PDT) is an effective, non-invasive, novel, and clinically approved strategy to treat cancer. In PDT, three main agents are utilized, i.e., photosensitizer (PS) drug, oxygen, and light. At first, the photosensitizer is injected into blood circulation or applied topically, where it quickly becomes absorbed or accumulated at the tumor site passively or actively. Afterward, the tumor is irradiated with light which leads to the activation of the photosensitizing molecule. PS produces the reactive oxygen species (ROS), resulting in the death of the tumor cell. However, the effectiveness of PDT for tumor destruction is mainly dependent on the cellular uptake and water solubility of photosensitizer molecules. Therefore, the delivery of photosensitizer molecules to the tumor cell is essential in PDT against cancer. The non-specific distribution of photosensitizer results in unwanted side effects and unsuccessful therapeutic outcomes. Therefore, to improve PDT clinical outcomes, the current research is mostly focused on developing actively targeted photosensitizer molecules, which provide a high cellular uptake and high absorption capacity to the tumor site by overcoming the problem associated with conventional PDT. Therefore, this review aims to provide current knowledge on various types of actively and passively targeted organic and inorganic nanocarriers for different cancers.
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10
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Falco J, Broggi M, Schiariti M, Vetrano IG, Esposito S, Ferroli P, Acerbi F. The role of sodium fluorescein in pediatric supratentorial intra-axial tumor resection: new insights from a monocentric series of 33 consecutive patients. Childs Nerv Syst 2022; 39:1463-1471. [PMID: 36520160 DOI: 10.1007/s00381-022-05764-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Accepted: 11/15/2022] [Indexed: 12/23/2022]
Abstract
INTRODUCTION Surgical resection represents the mainstay of treatment, in pediatric central nervous system (CNS) tumors, and aggressive resection correlates with prognosis for several histotypes. Sodium fluorescein (SF), a green, water-soluble dye, is used as neurosurgical fluorescent tracer thanks to its property to accumulate in cerebral regions of blood-brain barrier disruption, acting as a valid tool to improve the extent of resection in tumors enhancing at preoperative MRI. Brain neoplasms represent a heterogeneous group of tumors in the pediatric age, constituting the most common solid cancers; they typically show a varying degree of contrast enhancement on MRI. MATERIALS AND METHODS In March 2016, the authors started a prospective, observational trial to evaluate intraoperative fluorescence's characteristics of CNS tumors, the percentage of extent of resection, thanks to fluorescein aid, and side effects related to fluorescein administration. This report is based on a retrospective analysis of a group of 33 consecutive pediatric patients harboring a supratentorial lesion. RESULTS In 17 of 33 (51.5%) procedures, fluorescence was reported as intense; in 14 of 33 (42.4%), moderate; and in 2 of 33 (6.1%), slight. Intraoperative fluorescence corresponds to preoperative-MRI-documented contrast enhancement. In 28 of 33 (84.8%) surgical procedures, SF was considered useful; in 2 of 33 (6.1%), partial useful; and in 3 of 33 (9.1%), not essential because the tumor was already recognizable. No adverse effect to SF administration was registered. CONCLUSION Fluorescein-guided surgery with a dedicated filter on the microscope is a safe and effective technique to improve visualization and resection of different pediatric brain tumors.
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Affiliation(s)
- Jacopo Falco
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Via Giovanni Celoria 11, 20133, Milan, Italy
| | - Morgan Broggi
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Via Giovanni Celoria 11, 20133, Milan, Italy
| | - Marco Schiariti
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Via Giovanni Celoria 11, 20133, Milan, Italy
| | - Ignazio Gaspare Vetrano
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Via Giovanni Celoria 11, 20133, Milan, Italy.,Department of Biomedical Sciences for Health, University of Milan, Milan, Italy
| | - Silvia Esposito
- Developmental Neurology Unit, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Paolo Ferroli
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Via Giovanni Celoria 11, 20133, Milan, Italy
| | - Francesco Acerbi
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Via Giovanni Celoria 11, 20133, Milan, Italy.
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11
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de Laurentis C, Bteich F, Beuriat PA, Mottolese C, Giussani C, Szathmari A, Vinchon M, Di Rocco F. Sodium fluorescein in pediatric neurosurgery: a systematic review with technical considerations and future perspectives. Childs Nerv Syst 2022; 39:1451-1462. [PMID: 36459209 DOI: 10.1007/s00381-022-05772-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Accepted: 11/23/2022] [Indexed: 12/03/2022]
Abstract
BACKGROUND Sodium fluorescein (SF) is routinely used in several centers as a valid intraoperative adjunct in adult oncological neurosurgery. Its use in pediatric neurosurgery is increasing, although its role is not yet well-defined in children. We reviewed the current literature in order to evaluate the use of SF in children with CNS and PNS lesions. METHODS For this systematic review, we searched PubMed, Scopus, and Embase databases, and forward and backward citations for studies published between database inception and July 31st, 2022. We included any article type or congress abstract adding at least a new case, without restrictions of language or publication status, concerning the use of SF in neurosurgical procedures in patients under 18 years of age. We excluded studies concerning purely vascular cases and cerebrospinal fluid leaks. RESULTS Of 4094 records identified, 19 articles were eligible and included for further analysis. As per July 31st, 2022, at least 119 patients aged from 11 months to 17.9 years underwent surgery with SF. No serious adverse events were reported. A large variety of tumor types was operated, in most cases resected under the specific YELLOW 560 nm filter after a low-dose SF injection (2-5 mg/kg) at the end of anesthesia induction. SF was reported particularly useful in gangliogliomas and pilocytic astrocytomas. DISCUSSION/CONCLUSION Given its easy-to-use profile, low cost, and safety, SF seems to be a feasible and valid adjunct in the pediatric population when aiming at individuating a biopsy target or maximizing extent of resection, particularly in some tumor types. Further studies are required to strengthen the evidence on its impact on outcomes.
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Affiliation(s)
- Camilla de Laurentis
- Pediatric Neurosurgery Unit, Hôpital Femme Mère Enfant, Lyon, France. .,Department of Medicine and Surgery, Università degli Studi di Milano Bicocca, Milan, Italy.
| | - Fred Bteich
- Pediatric Neurosurgery Unit, Hôpital Femme Mère Enfant, Lyon, France
| | | | - Carmine Mottolese
- Pediatric Neurosurgery Unit, Hôpital Femme Mère Enfant, Lyon, France
| | - Carlo Giussani
- Department of Medicine and Surgery, Università degli Studi di Milano Bicocca, Milan, Italy.,Neurosurgery Unit, San Gerardo Hospital, Monza, Italy
| | | | - Matthieu Vinchon
- Pediatric Neurosurgery Unit, Hôpital Femme Mère Enfant, Lyon, France
| | - Federico Di Rocco
- Pediatric Neurosurgery Unit, Hôpital Femme Mère Enfant, Lyon, France.,Department of Medicine and Surgery, Université Claude Bernard Lyon I, Lyon, France
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12
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Sodium fluorescein in pediatric oncological neurosurgery: a pilot study on 50 children. Childs Nerv Syst 2022; 39:1473-1484. [PMID: 36454309 DOI: 10.1007/s00381-022-05765-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 11/15/2022] [Indexed: 12/04/2022]
Abstract
BACKGROUND Sodium fluorescein (SF) is currently considered a valid intraoperative adjunct in the resection of high-grade brain lesions in adults. Experiences in pediatric groups and in low-grade gliomas and other low-grade lesions are still limited in literature, and subjective evaluation of fluorescence is still a limitation. MATERIAL AND METHODS This study retrospectively reviewed all patients with brain or spine lesions operated on from September 2021 to July 2022 in the Pediatric Neurosurgery Unit of Hôpital Femme Mère Enfant, Lyon, who had received 5 mg/kg of 10%. Surgery was performed using a YELLOW560 filter at crucial times. At the end of surgery, the first operator completed a questionnaire, including his opinion on whether SF had been useful in tumor resection, recorded as a binary variable. Post hoc, surgical images were reviewed using ImageJ, an open-source Java image processing platform. In order to compare independent discrete variables, we applied the Student's t test, and we applied the Chi-square or Fisher exact test for binary variables. A threshold of p < 0.05 was set for statistical significance. RESULTS We included 50 pediatric patients (0.2-17.6 years old). Forty/50 lesions showed SF uptake (80%). The differentiation between healthy and affected tissue, thanks to SF, subjectively evaluated by the surgeon, had as objective counterpart the statistically significant higher brightness of green in lesions, registered by the software (p < 0.001). SF overall allowed a good differentiation in 33/50 lesions, and overall utility of SF has been noted in 67% of them. When specifically considering gliomas, overall utility reached 75%. CONCLUSION SF is a feasible, safe, and useful intraoperative adjunct in pediatric neurosurgery. In particular, it seems to have a promising role in some low-grade infiltrating glial tumors. The subjective evaluation of fluorescence seems to be reliable with respect to image analyses software.
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13
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Krieg SM, Bernhard D, Ille S, Meyer B, Combs S, Rotenberg A, Frühwald MC. Neurosurgery for eloquent lesions in children: state-of-the-art rationale and technical implications of perioperative neurophysiology. Neurosurg Focus 2022; 53:E4. [PMID: 36455267 DOI: 10.3171/2022.9.focus22316] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Accepted: 09/22/2022] [Indexed: 12/04/2022]
Abstract
OBJECTIVE In adult patients, an increasing group of neurosurgeons specialize entirely in the treatment of highly eloquent tumors, particularly gliomas. In contrast, extensive perioperative neurophysiological workup for pediatric cases has been limited essentially to epilepsy surgery. METHODS The authors discuss radio-oncological and general oncological considerations based on the current literature and their personal experience. RESULTS While several functional mapping modalities facilitate preoperative identification of cortically and subcortically located eloquent areas, not all are suited for children. Direct cortical intraoperative stimulation is impractical in many young patients due to the reduced excitability of the immature cortex. Behavioral requirements also limit the utility of functional MRI and magnetoencephalography in children. In contrast, MRI-derived tractography and navigated transcranial magnetic stimulation are available across ages. Herein, the authors review the oncological rationale of function-guided resection in pediatric gliomas including technical implications such as personalized perioperative neurophysiology, surgical strategies, and limitations. CONCLUSIONS Taken together, these techniques, despite the limitations of some, facilitate the identification of eloquent areas prior to tumor surgery and radiotherapy as well as during follow-up of residual tumors.
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Affiliation(s)
- Sandro M Krieg
- 1Department of Neurosurgery, Klinikum rechts der Isar, School of Medicine, Technische Universität München
| | - Denise Bernhard
- 2Department of Radiation Oncology, Klinikum rechts der Isar, School of Medicine, Technische Universität München
| | - Sebastian Ille
- 1Department of Neurosurgery, Klinikum rechts der Isar, School of Medicine, Technische Universität München
| | - Bernhard Meyer
- 1Department of Neurosurgery, Klinikum rechts der Isar, School of Medicine, Technische Universität München
| | - Stephanie Combs
- 2Department of Radiation Oncology, Klinikum rechts der Isar, School of Medicine, Technische Universität München.,3Deutsches Konsortium für Translationale Krebsforschung (DKTK), Partner Sites Munich.,4Institute of Radiation Medicine (IRM), Department of Radiation Sciences (DRS), Helmholtz Zentrum München (HMGU), Oberschleißheim, Germany
| | - Alexander Rotenberg
- 5Department of Neurology, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts; and
| | - Michael C Frühwald
- 6Pediatrics and Adolescent Medicine, Augsburg University Hospital, Augsburg, Germany
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14
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Pediatric Low-Grade Glioma Surgery with Sodium Fluorescein: Efficient Localization for Removal and Association with Intraoperative Pathological Sampling. Diagnostics (Basel) 2022; 12:diagnostics12122927. [PMID: 36552934 PMCID: PMC9777105 DOI: 10.3390/diagnostics12122927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 11/16/2022] [Accepted: 11/18/2022] [Indexed: 11/25/2022] Open
Abstract
Low-grade gliomas are among the most common CNS lesions in pediatrics and surgery is often the first-line treatment. Intraoperative tools have been developed to maximize the results of surgery, and in particular dyes such as sodium fluorescein (SF) have been investigated in high-grade adult lesions. The use of SF in pediatric low-grade gliomas is still unclear. We retrospectively reviewed 22 pediatric CNS low-grade gliomas operated on with SF from September 2021 to October 2022. A total of 86% of lesions showed SF uptake, which was helpful intraoperatively (confirmation of initial localization of the tumor, or identification of tumor remnants) in 74% of them. The intraoperative fluorescence seems associated with gadolinium enhancement at the preoperative MRI. Interestingly, the extemporaneous pathological sampling (EPS) was informative in every case showing SF uptake, whereas in cases without SF uptake, the EPS was non-informative, although the tissue was later confirmed as pathological. These findings highlight the interest of SF for perioperative diagnosis of tumor tissue and may suggest in which cases the differentiation of tumor-healthy tissue could be especially blurred, posing difficulties for the pathologist.
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15
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Falco J, Broggi M, Vetrano IG, Rubiu E, Schiariti M, Restelli F, Mazzapicchi E, Bonomo G, La Corte E, Ferroli P, Acerbi F. Fluorescein sodium in the surgical treatment of pleomorphic xanthoastrocytomas: Results from a retrospective study. Front Oncol 2022; 12:1009796. [PMID: 36452506 PMCID: PMC9702556 DOI: 10.3389/fonc.2022.1009796] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 10/19/2022] [Indexed: 09/23/2023] Open
Abstract
OBJECTIVE Pleomorphic xanthoastrocytoma (PXA) is a rare brain tumor, most commonly affecting children and young adults. Surgical resection represents the mainstay of treatment, and extent of resection is associated with improved survival. In this study, we analyzed the role of sodium fluorescein (SF) in improving intraoperative visualization easing resection. METHODS Surgical database of FLUOCERTUM study (Besta Institute, Milan, Italy) was retrospectively reviewed to find pleomorphic xanthoastrocytomas and anaplastic xanthoastrocytomas, according to WHO-2016/2021 classification, surgically removed by a fluorescein-guided technique from March 2016 to February 2022. SF was intravenously injected (5mg/kg) immediately after induction of general anesthesia. Tumors were removed using a microsurgical technique with the YELLOW 560 filter (Carl Zeiss Meditec, Oberkochen, Germany). RESULTS Twelve patients (7 males and 5 females; 3 pediatric patients, mean age 10 years, range 5 to 13 years and 9 adult patients, mean age 50.6 years, range 35 to 63 years) underwent fluorescein-guided surgery. No side effects related to SF occurred. In all tumors, contrast enhancement on preoperative MRI correlated with intense, heterogeneous yellow fluorescence with bright fluorescent cystic fluid. Fluorescein was considered helpful in distinguishing tumors from viable tissue in all cases. Gross total resection was achieved in 8 cases (66.7%); in 4 cases, otherwise, the resection was subtotal with fluorescent residual spots to avoid neurological worsening (33.3%). CONCLUSIONS The use of SF is a valuable method for safe fluorescence-guided tumor resection. Our data documented a positive effect of fluorescein-guided surgery on intraoperative visualization, suggesting a probable role in improving the extent of resection during yellow surgery of PXA.
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Affiliation(s)
- Jacopo Falco
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Morgan Broggi
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Ignazio G. Vetrano
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
| | - Emanuele Rubiu
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Marco Schiariti
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Francesco Restelli
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Elio Mazzapicchi
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Giulio Bonomo
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Emanuele La Corte
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Paolo Ferroli
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Francesco Acerbi
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
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16
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Falco J, Höhne J, Broggi M, Rubiu E, Restelli F, Vetrano IG, Schiariti M, Mazzapicchi E, Bonomo G, Ferroli P, Schebesch KM, Acerbi F. Fluorescein-guided surgery for the resection of pilocytic astrocytomas: A multicentric retrospective study. Front Oncol 2022; 12:943085. [PMID: 36016608 PMCID: PMC9395669 DOI: 10.3389/fonc.2022.943085] [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: 05/13/2022] [Accepted: 07/13/2022] [Indexed: 11/13/2022] Open
Abstract
ObjectivePilocytic astrocytomas (PAs) are relatively benign tumors, usually enhancing on post-contrast MRI and often characterized by a mural nodule within a cystic component. Surgical resection represents the mainstay of treatment, and extent of resection (EOR) is associated with improved survival. In this study, we analyzed the effect of sodium fluorescein (SF) on the visualization and resection of these circumscribed astrocytic gliomas.MethodsSurgical databases at two neurosurgical departments (Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy and Department of Neurosurgery, University Medical Center Regensburg, Regensburg, Germany) were retrospectively reviewed to identify the cohort of patients with pilocytic astrocytoma who had undergone fluorescein-guided tumor resection at any of the centers between March 2016 and February 2022. SF was intravenously injected (5 mg/kg) immediately after the induction of general anesthesia. Tumors were removed using a microsurgical technique with the YELLOW 560 filter (Carl Zeiss Meditec, Oberkochen, Germany).ResultsForty-four patients (25 males and 19 females; 26 pediatric patients, mean age of 9.77 years, range 2 to 17 years; and 18 adult patients, mean age of 34.39 years, range 18 to 58 years) underwent fluorescein-guided surgery. No side effects related to SF occurred. In all tumors, contrast enhancement on preoperative MRI was correlated with intense, heterogeneous yellow fluorescence with bright fluorescent cystic fluid. Fluorescein was considered helpful in distinguishing tumors from viable tissue in all cases except three patients due to faint fluorescein enhancement. Biopsy was intended in two operations, and partial resection was intended in three operations. Gross total resection was achieved in 24 cases out of 39 patients scheduled for tumor removal (61.54%), in five cases a minimal residual volume was highlighted by postoperative MRI despite the intraoperative subjective evaluation of complete tumor removal (12.82%); in the other 10 cases, the resection was subtotal with fluorescent residual spots to avoid neurological worsening (25.64%).ConclusionsThe use of SF is a valuable method for safe fluorescence-guided tumor resection. Our data showed a positive effect of fluorescein-guided surgery on intraoperative visualization during resection of Pas, suggesting a possible role in improving the extent of resection of these lesions.
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Affiliation(s)
- Jacopo Falco
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Julius Höhne
- Department of Neurosurgery, Department of Neurosurgery, University Medical Center Regensburg, Regensburg, Germany
| | - Morgan Broggi
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Emanuele Rubiu
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Francesco Restelli
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Ignazio G. Vetrano
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Marco Schiariti
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Elio Mazzapicchi
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Giulio Bonomo
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Paolo Ferroli
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Karl-Michael Schebesch
- Department of Neurosurgery, Department of Neurosurgery, University Medical Center Regensburg, Regensburg, Germany
| | - Francesco Acerbi
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
- *Correspondence: Francesco Acerbi,
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17
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Franceschi E, Giannini C, Furtner J, Pajtler KW, Asioli S, Guzman R, Seidel C, Gatto L, Hau P. Adult Medulloblastoma: Updates on Current Management and Future Perspectives. Cancers (Basel) 2022; 14:cancers14153708. [PMID: 35954372 PMCID: PMC9367316 DOI: 10.3390/cancers14153708] [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: 06/12/2022] [Revised: 07/22/2022] [Accepted: 07/26/2022] [Indexed: 11/16/2022] Open
Abstract
Medulloblastoma (MB) is a malignant embryonal tumor of the posterior fossa belonging to the family of primitive neuro-ectodermic tumors (PNET). MB generally occurs in pediatric age, but in 14–30% of cases, it affects the adults, mostly below the age of 40, with an incidence of 0.6 per million per year, representing about 0.4–1% of tumors of the nervous system in adults. Unlike pediatric MB, robust prospective trials are scarce for the post-puberal population, due to the low incidence of MB in adolescent and young adults. Thus, current MB treatments for older patients are largely extrapolated from the pediatric experience, but the transferability and applicability of these paradigms to adults remain an open question. Adult MB is distinct from MB in children from a molecular and clinical perspective. Here, we review the management of adult MB, reporting the recent published literature focusing on the effectiveness of upfront chemotherapy, the development of targeted therapies, and the potential role of a reduced dose of radiotherapy in treating this disease.
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Affiliation(s)
- Enrico Franceschi
- Nervous System Medical Oncology Department, IRCCS Istituto delle Scienze Neurologiche di Bologna, Via Altura 3, 40139 Bologna, Italy
- Correspondence:
| | - Caterina Giannini
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN 59005, USA;
- Department of Biomedical and Neuromotor Sciences (DIBINEM), University of Bologna, 40126 Bologna, Italy;
| | - Julia Furtner
- Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, 1090 Vienna, Austria;
| | - Kristian W. Pajtler
- Hopp Children’s Cancer Center Heidelberg (KiTZ), 69120 Heidelberg, Germany;
- Division of Pediatric Neurooncology, German Cancer Research Center (DKFZ) and German Consortium for Translational Cancer Research (DKTK), 69120 Heidelberg, Germany
- Department of Pediatric Oncology, Hematology and Immunology, Heidelberg University Hospital, 69120 Heidelberg, Germany
| | - Sofia Asioli
- Department of Biomedical and Neuromotor Sciences (DIBINEM), University of Bologna, 40126 Bologna, Italy;
- Pituitary Unit, IRCCS Istituto Delle Scienze Neurologiche Di Bologna, Via Altura 3, 40139 Bologna, Italy
| | - Raphael Guzman
- Department of Neurosurgery, University Hospital of Basel, 4031 Basel, Switzerland;
| | - Clemens Seidel
- Department of Radiation Oncology, University Hospital Leipzig, 04103 Leipzig, Germany;
| | - Lidia Gatto
- Department of Oncology, AUSL of Bologna, 40139 Bologna, Italy;
| | - Peter Hau
- Wilhelm Sander NeuroOncology Unit & Department of Neurology, University Hospital Regensburg, 93055 Regensburg, Germany;
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18
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Neuroblastoma: Essential genetic pathways and current therapeutic options. Eur J Pharmacol 2022; 926:175030. [DOI: 10.1016/j.ejphar.2022.175030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 05/09/2022] [Accepted: 05/10/2022] [Indexed: 12/29/2022]
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19
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Zhang X, Jaman E, Habib A, Ozpinar A, Andrews E, Amankulor NM, Zinn PO. A Novel 5-Aminolevulinic Acid-Enabled Surgical Loupe System-A Consecutive Brain Tumor Series of 11 Cases. Oper Neurosurg (Hagerstown) 2022; 22:298-304. [PMID: 35315798 DOI: 10.1227/ons.0000000000000141] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 11/01/2021] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND The concept of maximally safe resection (MSR) has been shown to improve clinical outcomes in the treatment of high-grade gliomas (HGGs). To achieve MSR, surgical adjuncts such as functional imaging, neuronavigation, intraoperative mapping, ultrasound, and fluorescence-guided surgery are routinely used. 5-Aminolevulinic acid (5-ALA) is an oral agent that has been increasingly adopted in fluorescence-guided resection of HGG. In randomized clinical trials of 5-ALA, it has been shown to increase the extent of resection and progression-free survival in HGG. Current commercially available 5-ALA detection systems are all microscope-based and can sometimes be cumbersome to use. OBJECTIVE To present our experience using a novel 5-ALA-enabled surgical loupe system. METHODS 5-ALA-enabled loupes were used in 11 consecutive patients with either suspected HGG on magnetic resonance imaging or recurrence of known lesions. Lesion appearance was examined under white light, 5-ALA loupes, and a 5-ALA microscope. Tumor specimens were checked for fluorescence and sent for pathologic examination. RESULTS In our experience, a 5-ALA-enabled surgical loupe system offers excellent visualization of 5-ALA in patients with HGG. In 10 of 11 patients, fluorescent tissue was confirmed to be high-grade glioma by pathology. In 1 patient, tissue was not fluorescent, and final pathology was World Health Organization grade I meningioma. CONCLUSION A 5-ALA-enabled surgical loupe system offers excellent intraoperative visualization of 5-ALA fluorescence in HGG and can be a viable surgical adjunct for achieving MSR of HGG.
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Affiliation(s)
- Xiaoran Zhang
- Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Emade Jaman
- School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Ahmed Habib
- Hillman Cancer Center, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Alp Ozpinar
- Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Edward Andrews
- Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Nduka M Amankulor
- Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA.,Hillman Cancer Center, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Pascal O Zinn
- Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA.,Hillman Cancer Center, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
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20
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The Combined Use of 5-ALA and Chlorin e6 Photosensitizers for Fluorescence-Guided Resection and Photodynamic Therapy under Neurophysiological Control for Recurrent Glioblastoma in the Functional Motor Area after Ineffective Use of 5-ALA: Preliminary Results. Bioengineering (Basel) 2022; 9:bioengineering9030104. [PMID: 35324793 PMCID: PMC8945443 DOI: 10.3390/bioengineering9030104] [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: 01/29/2022] [Revised: 02/25/2022] [Accepted: 03/01/2022] [Indexed: 11/17/2022] Open
Abstract
The treatment of glial brain tumors is an unresolved problem in neurooncology, and all existing methods (tumor resection, chemotherapy, radiotherapy, radiosurgery, fluorescence diagnostics, photodynamic therapy, etc.) are directed toward increasing progression-free survival for patients. Fluorescence diagnostics and photodynamic therapy are promising methods for achieving gross total resection and additional treatment of residual parts of the tumor. However, sometimes the use of one photosensitizer for photodynamic therapy does not help, and the time until tumor relapse barely increases. This translational case report describes the preliminary results of the first combined use of 5-ALA and chlorin e6 photosensitizers for fluorescence-guided resection and photodynamic therapy of glioblastoma, which allowed us to perform total resection of tumor tissue according to magnetic resonance and computed tomography images, remove additional tissue with increased fluorescence intensity without neurophysiological consequences, and perform additional therapy. Two months after surgery, no recurrent tumor and no contrast uptake in the tumor bed were detected. Additionally, the patient had ischemic changes in the access zone and along the periphery and cystic-glial changes in the left parietal lobe.
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21
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Rynda AY, Olyushin VE, Rostovtsev DM, Zabrodskaya YM, Papayan GV. [Comparative analysis of 5-ALA and chlorin E6 fluorescence-guided navigation in malignant glioma surgery]. Khirurgiia (Mosk) 2022:5-14. [PMID: 35080821 DOI: 10.17116/hirurgia20220115] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
OBJECTIVE To analyze specificity and sensitivity of 5-ALA and chlorin E6 fluorescence-guided navigation in malignant glioma surgery. MATERIAL AND METHODS Fluorescence-guided navigation was analyzed in 50 patients (2 groups) with high-grade glioma. All patients were treated at the Polenov Russian Neurosurgery Institute. Chlorin E6 1 mg/kg intravenously (Photoditazin) was used as a fluorescence inducer in 25 patients (the 1st group), 5-ALA 20 mg/kg orally (Alasens) - in other 25 patients (the 2nd group). Each group included 10 patients with glioma grade III and 15 patients with glioma grade IV. Both groups were statistically representative (p>0.05). RESULTS In patients with glioma grade III, sensitivity of chlorin E6 fluorescence-guided navigation was 83.8%, 5-ALA fluorescence - 82.5%. Specificity was 66.7% and 64.1%, respectively. In patients with glioma grade IV, sensitivity was 87.7% for chlorin E6 and 88.3% for 5-ALA. Specificity was 85.2% and 88.1%, respectively. CONCLUSION Statistical analysis confirmed comparable high efficacy of both agents in surgery of malignant gliomas. Sensitivity and specificity of fluorescence-guided navigation with chlorin E6 and 5-ALA were similar (p>0.05).
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Affiliation(s)
- A Yu Rynda
- Polenov Russian Neurosurgery Institute of the Branch of the Almazov National Medical Research Center, St. Petersburg, Russia
| | - V E Olyushin
- Polenov Russian Neurosurgery Institute of the Branch of the Almazov National Medical Research Center, St. Petersburg, Russia
| | - D M Rostovtsev
- Polenov Russian Neurosurgery Institute of the Branch of the Almazov National Medical Research Center, St. Petersburg, Russia
| | - Yu M Zabrodskaya
- Polenov Russian Neurosurgery Institute of the Branch of the Almazov National Medical Research Center, St. Petersburg, Russia
| | - G V Papayan
- Polenov Russian Neurosurgery Institute of the Branch of the Almazov National Medical Research Center, St. Petersburg, Russia
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22
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Jabarkheel R, Ho CS, Rodrigues AJ, Jin MC, Parker JJ, Mensah-Brown K, Yecies D, Grant GA. Rapid intraoperative diagnosis of pediatric brain tumors using Raman spectroscopy: A machine learning approach. Neurooncol Adv 2022; 4:vdac118. [PMID: 35919071 PMCID: PMC9341441 DOI: 10.1093/noajnl/vdac118] [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] [Indexed: 11/15/2022] Open
Abstract
Background Surgical resection is a mainstay in the treatment of pediatric brain tumors to achieve tissue diagnosis and tumor debulking. While maximal safe resection of tumors is desired, it can be challenging to differentiate normal brain from neoplastic tissue using only microscopic visualization, intraoperative navigation, and tactile feedback. Here, we investigate the potential for Raman spectroscopy (RS) to accurately diagnose pediatric brain tumors intraoperatively. Methods Using a rapid acquisition RS device, we intraoperatively imaged fresh ex vivo brain tissue samples from 29 pediatric patients at the Lucile Packard Children’s Hospital between October 2018 and March 2020 in a prospective fashion. Small tissue samples measuring 2-4 mm per dimension were obtained with each individual tissue sample undergoing multiple unique Raman spectra acquisitions. All tissue samples from which Raman spectra were acquired underwent individual histopathology review. A labeled dataset of 678 unique Raman spectra gathered from 160 samples was then used to develop a machine learning model capable of (1) differentiating normal brain from tumor tissue and (2) normal brain from low-grade glioma (LGG) tissue. Results Trained logistic regression model classifiers were developed using our labeled dataset. Model performance was evaluated using leave-one-patient-out cross-validation. The area under the curve (AUC) of the receiver-operating characteristic (ROC) curve for our tumor vs normal brain model was 0.94. The AUC of the ROC curve for LGG vs normal brain was 0.91. Conclusions Our work suggests that RS can be used to develop a machine learning-based classifier to differentiate tumor vs non-tumor tissue during resection of pediatric brain tumors.
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Affiliation(s)
- Rashad Jabarkheel
- Department of Neurosurgery, Stanford University , Stanford, California , USA
- Department of Neurosurgery, University of Pennsylvania , Philadelphia, Pennsylvania , USA
| | - Chi-Sing Ho
- Department of Applied Physics, Stanford University , Stanford, California , USA
| | - Adrian J Rodrigues
- Department of Neurosurgery, Stanford University , Stanford, California , USA
| | - Michael C Jin
- Department of Neurosurgery, Stanford University , Stanford, California , USA
| | - Jonathon J Parker
- Department of Neurosurgery, Stanford University , Stanford, California , USA
| | - Kobina Mensah-Brown
- Department of Neurosurgery, University of Pennsylvania , Philadelphia, Pennsylvania , USA
| | - Derek Yecies
- Department of Neurosurgery, Stanford University , Stanford, California , USA
| | - Gerald A Grant
- Department of Neurosurgery, Stanford University , Stanford, California , USA
- Department of Neurosurgery, Duke University , Durham, North Carolina , USA
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23
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Privitera L, Paraboschi I, Cross K, Giuliani S. Above and Beyond Robotic Surgery and 3D Modelling in Paediatric Cancer Surgery. Front Pediatr 2021; 9:777840. [PMID: 34988038 PMCID: PMC8721224 DOI: 10.3389/fped.2021.777840] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 11/17/2021] [Indexed: 12/15/2022] Open
Abstract
Although the survival rates for children's cancers have more than doubled in the last few decades, the surgical practise has not significantly changed. Among the most recent innovations introduced in the clinic, robotic surgery and augmented reality are two of the most promising, even if they are not widespread. The increased flexibility of the motion, the magnification of the surgical field and the tremor reduction provided by robotic surgery have been beneficial to perform complex oncological procedures in children. Besides, augmented reality has been proven helpful in planning for tumour removal, facilitating early discrimination between cancer and healthy organs. Nowadays, research in the field of surgical oncology is moving fast, and new technologies and innovations wich will help to shape a new way to perform cancer surgery. Paediatric surgeons need to be ready to adopt these novel devices and intraoperative techniques to allow more radical tumour resections with fewer complications. This review aims to present the mechanism of action and indications of several novel technologies such as optical imaging surgery, high definition cameras, and intraoperative loco-regional treatments. We hope this will enhance early adoption and more research on how to employ technology for the benefit of children.
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Affiliation(s)
- Laura Privitera
- Wellcome/Engineering and Physical Sciences Research Council Centre for Interventional & Surgical Sciences, University College London, London, United Kingdom
- Developmental Biology and Cancer Department, University College London Great Ormond Street Institute of Child Health, London, United Kingdom
| | - Irene Paraboschi
- Wellcome/Engineering and Physical Sciences Research Council Centre for Interventional & Surgical Sciences, University College London, London, United Kingdom
- Developmental Biology and Cancer Department, University College London Great Ormond Street Institute of Child Health, London, United Kingdom
| | - Kate Cross
- Department of Specialist Neonatal and Paediatric Surgery, Great Ormond Street Hospital for Children NHS Foundation Trust, London, United Kingdom
| | - Stefano Giuliani
- Wellcome/Engineering and Physical Sciences Research Council Centre for Interventional & Surgical Sciences, University College London, London, United Kingdom
- Developmental Biology and Cancer Department, University College London Great Ormond Street Institute of Child Health, London, United Kingdom
- Department of Specialist Neonatal and Paediatric Surgery, Great Ormond Street Hospital for Children NHS Foundation Trust, London, United Kingdom
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24
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Leon R, Fabelo H, Ortega S, Piñeiro JF, Szolna A, Hernandez M, Espino C, O'Shanahan AJ, Carrera D, Bisshopp S, Sosa C, Marquez M, Morera J, Clavo B, Callico GM. VNIR-NIR hyperspectral imaging fusion targeting intraoperative brain cancer detection. Sci Rep 2021; 11:19696. [PMID: 34608237 PMCID: PMC8490425 DOI: 10.1038/s41598-021-99220-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 09/16/2021] [Indexed: 12/25/2022] Open
Abstract
Currently, intraoperative guidance tools used for brain tumor resection assistance during surgery have several limitations. Hyperspectral (HS) imaging is arising as a novel imaging technique that could offer new capabilities to delineate brain tumor tissue in surgical-time. However, the HS acquisition systems have some limitations regarding spatial and spectral resolution depending on the spectral range to be captured. Image fusion techniques combine information from different sensors to obtain an HS cube with improved spatial and spectral resolution. This paper describes the contributions to HS image fusion using two push-broom HS cameras, covering the visual and near-infrared (VNIR) [400–1000 nm] and near-infrared (NIR) [900–1700 nm] spectral ranges, which are integrated into an intraoperative HS acquisition system developed to delineate brain tumor tissue during neurosurgical procedures. Both HS images were registered using intensity-based and feature-based techniques with different geometric transformations to perform the HS image fusion, obtaining an HS cube with wide spectral range [435–1638 nm]. Four HS datasets were captured to verify the image registration and the fusion process. Moreover, segmentation and classification methods were evaluated to compare the performance results between the use of the VNIR and NIR data, independently, with respect to the fused data. The results reveal that the proposed methodology for fusing VNIR–NIR data improves the classification results up to 21% of accuracy with respect to the use of each data modality independently, depending on the targeted classification problem.
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Affiliation(s)
- Raquel Leon
- Institute for Applied Microelectronics, University of Las Palmas de Gran Canaria, 35017, Las Palmas de Gran Canaria, Spain.
| | - Himar Fabelo
- Institute for Applied Microelectronics, University of Las Palmas de Gran Canaria, 35017, Las Palmas de Gran Canaria, Spain.
| | - Samuel Ortega
- Institute for Applied Microelectronics, University of Las Palmas de Gran Canaria, 35017, Las Palmas de Gran Canaria, Spain.,Nofima, Norwegian Institute of Food Fisheries and Aquaculture Research, Muninbakken 9-13, Breivika, 6122, NO-9291, Tromsø, Norway
| | - Juan F Piñeiro
- Department of Neurosurgery, Instituto de Investigación Sanitaria de Canarias (IISC), University Hospital Doctor Negrin of Gran Canaria, Barranco de la Ballena S/N, 35010, Las Palmas de Gran Canaria, Spain
| | - Adam Szolna
- Department of Neurosurgery, Instituto de Investigación Sanitaria de Canarias (IISC), University Hospital Doctor Negrin of Gran Canaria, Barranco de la Ballena S/N, 35010, Las Palmas de Gran Canaria, Spain
| | - Maria Hernandez
- Department of Neurosurgery, Instituto de Investigación Sanitaria de Canarias (IISC), University Hospital Doctor Negrin of Gran Canaria, Barranco de la Ballena S/N, 35010, Las Palmas de Gran Canaria, Spain
| | - Carlos Espino
- Department of Neurosurgery, Instituto de Investigación Sanitaria de Canarias (IISC), University Hospital Doctor Negrin of Gran Canaria, Barranco de la Ballena S/N, 35010, Las Palmas de Gran Canaria, Spain
| | - Aruma J O'Shanahan
- Department of Neurosurgery, Instituto de Investigación Sanitaria de Canarias (IISC), University Hospital Doctor Negrin of Gran Canaria, Barranco de la Ballena S/N, 35010, Las Palmas de Gran Canaria, Spain
| | - David Carrera
- Department of Neurosurgery, Instituto de Investigación Sanitaria de Canarias (IISC), University Hospital Doctor Negrin of Gran Canaria, Barranco de la Ballena S/N, 35010, Las Palmas de Gran Canaria, Spain
| | - Sara Bisshopp
- Department of Neurosurgery, Instituto de Investigación Sanitaria de Canarias (IISC), University Hospital Doctor Negrin of Gran Canaria, Barranco de la Ballena S/N, 35010, Las Palmas de Gran Canaria, Spain
| | - Coralia Sosa
- Department of Neurosurgery, Instituto de Investigación Sanitaria de Canarias (IISC), University Hospital Doctor Negrin of Gran Canaria, Barranco de la Ballena S/N, 35010, Las Palmas de Gran Canaria, Spain
| | - Mariano Marquez
- Department of Neurosurgery, Instituto de Investigación Sanitaria de Canarias (IISC), University Hospital Doctor Negrin of Gran Canaria, Barranco de la Ballena S/N, 35010, Las Palmas de Gran Canaria, Spain
| | - Jesus Morera
- Department of Neurosurgery, Instituto de Investigación Sanitaria de Canarias (IISC), University Hospital Doctor Negrin of Gran Canaria, Barranco de la Ballena S/N, 35010, Las Palmas de Gran Canaria, Spain
| | - Bernardino Clavo
- Research Unit, Instituto de Investigación Sanitaria de Canarias (IISC), University Hospital Doctor Negrin of Gran Canaria, Barranco de la Ballena S/N, 35010, Las Palmas de Gran Canaria, Spain
| | - Gustavo M Callico
- Institute for Applied Microelectronics, University of Las Palmas de Gran Canaria, 35017, Las Palmas de Gran Canaria, Spain.
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25
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Rynda AY, Olyushin VE, Rostovtsev DM, Zabrodskaya YM, Tastanbekov MM, Papayan GV. [Intraoperative fluorescence control with chlorin E6 in resection of glial brain tumors]. ZHURNAL VOPROSY NEĬROKHIRURGII IMENI N. N. BURDENKO 2021; 85:20-28. [PMID: 34463447 DOI: 10.17116/neiro20218504120] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
In recent years, fluorescence navigation has been increasingly used in surgery for gliomas. In most studies, 5-ALA derivatives are used as fluorescence inducers. However, there are few data regarding E6 chlorin for these purposes. OBJECTIVE To evaluate an effectiveness and feasibility of fluorescence navigation with chlorin E6 in surgery of brain gliomas. MATERIAL AND METHODS The study included 30 patients with glial brain tumors grade II-IV. All patients were operated at the Polenov Russian Neurosurgical Institute. We used surgical microscope (Leica OHS-1), D-Light AF System (Karl Storz, Germany), original fluorescence module (St. Petersburg LOMO, developed by G.V. Papayan) and special software RSS Cam - Endo 1.4.313 for visual analysis of fluorescence. Histological examination included hematoxylin-eosin staining of specimens and immunohistochemical studies. RESULTS Fluorescence was weak in all patients with Grade II gliomas and strong in almost all patients with Grade III-IV gliomas. Sensitivity of fluorescence diagnosis with chlorin E6 was 72.2% for Grade II gliomas, 83.8% for Grade III gliomas and 87.7% for Grade IV. Specificity of this method was 60% for Grade II gliomas, 66.7% for Grade III gliomas and 85.2% for Grade IV. CONCLUSION Certain method of fluorescence imaging ensured resection of glial brain tumors using chlorin E6. Intensity of tumor fluorescence correlated with glioma malignancy grade. These results indicate that chlorin E6 is an effective photosensitizer for intraoperative fluorescence diagnosis in surgery for glioma.
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Affiliation(s)
- A Yu Rynda
- Polenov Russian Neurosurgical Institute, St. Petersburg, Russia
| | - V E Olyushin
- Polenov Russian Neurosurgical Institute, St. Petersburg, Russia
| | - D M Rostovtsev
- Polenov Russian Neurosurgical Institute, St. Petersburg, Russia
| | | | - M M Tastanbekov
- Polenov Russian Neurosurgical Institute, St. Petersburg, Russia
| | - G V Papayan
- Polenov Russian Neurosurgical Institute, St. Petersburg, Russia
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26
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Beauchamp LH, Bercu MM, Avellino AM. 5-Aminolevulinic acid–assisted resection of pediatric dysembryoplastic neuroepithelial tumor: illustrative case. JOURNAL OF NEUROSURGERY: CASE LESSONS 2021; 2:CASE20153. [PMID: 35854680 PMCID: PMC9265167 DOI: 10.3171/case20153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 02/15/2021] [Indexed: 12/02/2022]
Abstract
BACKGROUND 5-Aminolevulinic acid (5-ALA) is approved as an adjunct for the resection of high-grade gliomas and is associated with improved outcomes. Dysembryoplastic neuroepithelial tumors (DNETs) are benign glioneural tumors occurring primarily in pediatric patients and often manifesting with seizure disorder. The goal of the surgical intervention is to obtain gross-total resection, which is associated, in the majority of cases, with seizure freedom. OBSERVATIONS The authors present the first case report of a pediatric patient who underwent gross-total resection of a 5-ALA–positive DNET with no evidence of recurrent seizures (Engel class I). LESSONS Fluorescence-guided surgery using 5-ALA facilitated gross-total resection of the mass.
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Affiliation(s)
- Luke H. Beauchamp
- College of Human Medicine, Michigan State University, East Lansing, Michigan; and
| | - Marian Michael Bercu
- Pediatric Neurosurgery, Helen DeVos Children’s Hospital, Spectrum Health, Grand Rapids, Michigan
| | - Anthony M. Avellino
- College of Human Medicine, Michigan State University, East Lansing, Michigan; and
- Pediatric Neurosurgery, Helen DeVos Children’s Hospital, Spectrum Health, Grand Rapids, Michigan
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27
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Wijnen MWH, Davidoff AM. Minimally Invasive Techniques in Pediatric Surgical Oncology. Surg Oncol Clin N Am 2021; 30:417-430. [PMID: 33706909 DOI: 10.1016/j.soc.2020.11.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Minimally invasive approaches to pediatric cancer surgery are increasingly used, not only for the benefits of smaller incisions, but also for better field visualization and precise dissection. Advances in technology and surgeon experience have facilitated this trend. However, the appropriate indications for its use remain to be determined, and oncologic principles should not be compromised. We discuss the current and potential future uses, and new technologies that are being developed and introduced to assist with and enhance the role of minimally invasive surgery in the management of children with cancer.
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Affiliation(s)
- Marc W H Wijnen
- Department of Surgery, Princess Maxima Center, Heidelberglaan 25, 3584 CS Utrecht, Netherlands
| | - Andrew M Davidoff
- Department of Surgery, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Memphis, TN 38105, USA.
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28
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Eibl T, Hammer A, Yakubov E, Blechschmidt C, Kalisch A, Steiner HH. Medulloblastoma in adults - reviewing the literature from a surgeon's point of view. Aging (Albany NY) 2021; 13:3146-3160. [PMID: 33497354 PMCID: PMC7880386 DOI: 10.18632/aging.202568] [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: 08/03/2020] [Accepted: 01/04/2021] [Indexed: 06/12/2023]
Abstract
Medulloblastoma is a common primary brain tumor in children but it is a rare cancer in adult patients. We reviewed the literature, searching PubMed for articles on this rare tumor entity, with a focus on tumor biology, advanced neurosurgical opportunities for safe tumor resection, and multimodal treatment options. Adult medulloblastoma occurs at a rate of 0.6 per one million people per year. There is a slight disparity between male and female patients, and patients with a fair skin tone are more likely to have a medulloblastoma. Patients present with cerebellar signs and signs of elevated intracranial pressure. Diagnostic efforts should consist of cerebral MRI and MRI of the spinal axis. Cerebrospinal fluid should be investigated to look for tumor dissemination. Medulloblastoma tumors can be classified as classic, desmoplastic, anaplastic, and large cell, according to the WHO tumor classification. Molecular subgroups include WNT, SHH, group 3, and group 4 tumors. Further molecular analyses suggest that there are several subgroups within the four existing subgroups, with significant differences in patient age, frequency of metastatic spread, and patient survival. As molecular markers have started to play an increasing role in determining treatment strategies and prognosis, their importance has increased rapidly. Treatment options include microsurgical tumor resection and radiotherapy and, in addition, chemotherapy that respects the tumor biology of individual patients offers targeted therapeutic approaches. For neurosurgeons, intraoperative imaging and tumor fluorescence may improve resection rates. Disseminated disease, residual tumor after surgery, lower radiation dose, and low Karnofsky performance status are all suggestive of a poor outcome. Extraneural spread occurs only in very few cases. The reported 5-year-survival rates range between 60% and 80% for all adult medulloblastoma patients.
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Affiliation(s)
- Thomas Eibl
- Department of Neurosurgery, Paracelsus Medical University, Nuremberg 90471, Bavaria, Germany
| | - Alexander Hammer
- Department of Neurosurgery, Paracelsus Medical University, Nuremberg 90471, Bavaria, Germany
| | - Eduard Yakubov
- Department of Neurosurgery, Paracelsus Medical University, Nuremberg 90471, Bavaria, Germany
| | - Cristiane Blechschmidt
- Department of Neuropathology, Paracelsus Medical University, Nuremberg 90471, Bavaria, Germany
| | - Alexander Kalisch
- Department of Oncology, Paracelsus Medical University, Nuremberg 90471, Bavaria, Germany
| | - Hans-Herbert Steiner
- Department of Neurosurgery, Paracelsus Medical University, Nuremberg 90471, Bavaria, Germany
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29
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Labuschagne J. 5-aminolevulinic acid-guided surgery for focal pediatric brainstem gliomas: A preliminary study. Surg Neurol Int 2020; 11:334. [PMID: 33194268 PMCID: PMC7656004 DOI: 10.25259/sni_246_2020] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Accepted: 08/28/2020] [Indexed: 12/22/2022] Open
Abstract
Background: There is a growing body of literature supporting the use of 5-aminolevulinic acid (5-ALA) in the pediatric population, however, its use is still considered “off label” in this setting. In this retrospective study, we report our experience using 5-ALA in pediatric patients with focal brainstem gliomas (BSGs). Methods: Patients younger than 16 years presenting with a newly diagnosed BSG that was focal in nature were considered suitable for treatment with 5-ALA-assisted surgery. Exclusion criteria included MRI features suggestive of a diffuse intrinsic pontine glioma. A single dose of 5-ALA was administered preoperatively. Intraoperative fluorescence was recorded as “solid,” “vague,” or “none.” The effectiveness of the fluorescence was graded as “helpful” or “unhelpful.” Results: Eight patients underwent 5-ALA-assisted surgery. There were four tumors located in the pons, two midbrain tumors, and two cervicomedullary tumors. Histological analysis demonstrated three diffuse astrocytomas, three pilocytic astrocytomas, and two anaplastic astrocytomas. Solid fluorescence was found in three of the eight cases, vague fluorescence was found in two cases, and no fluorescence was found in three cases. Fluorescence was useful in 3 (37%) cases. No patients experienced any complications attributable to the administration of the 5-ALA. Conclusion: With a total fluorescence rate of 62.5% but a subjectively assessed “usefulness” rate of only 37.5%, the role of 5-ALA in BSG surgery is limited. Given the toxicological safety, however, of the agent, caution is perhaps needed before dismissing the use of 5-ALA entirely.
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Affiliation(s)
- Jason Labuschagne
- Department of Paediatric Neurosurgery, Nelson Mandela Childrens Hospital, Parktown, Johanessburg, South Africa
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30
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Anti-GD2-IRDye800CW as a targeted probe for fluorescence-guided surgery in neuroblastoma. Sci Rep 2020; 10:17667. [PMID: 33077751 PMCID: PMC7573590 DOI: 10.1038/s41598-020-74464-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 09/24/2020] [Indexed: 01/01/2023] Open
Abstract
Neuroblastoma resection represents a major challenge in pediatric surgery, because of the high risk of complications. Fluorescence-guided surgery (FGS) could lower this risk by facilitating discrimination of tumor from normal tissue and is gaining momentum in adult oncology. Here, we provide the first molecular-targeted fluorescent agent for FGS in pediatric oncology, by developing and preclinically evaluating a GD2-specific tracer consisting of the immunotherapeutic antibody dinutuximab-beta, recently approved for neuroblastoma treatment, conjugated to near-infrared (NIR) fluorescent dye IRDye800CW. We demonstrated specific binding of anti-GD2-IRDye800CW to human neuroblastoma cells in vitro and in vivo using xenograft mouse models. Furthermore, we defined an optimal dose of 1 nmol, an imaging time window of 4 days after administration and show that neoadjuvant treatment with anti-GD2 immunotherapy does not interfere with fluorescence imaging. Importantly, as we observed universal, yet heterogeneous expression of GD2 on neuroblastoma tissue of a wide range of patients, we implemented a xenograft model of patient-derived neuroblastoma organoids with differential GD2 expression and show that even low GD2 expressing tumors still provide an adequate real-time fluorescence signal. Hence, the imaging advancement presented in this study offers an opportunity for improving surgery and potentially survival of a broad group of children with neuroblastoma.
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31
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Labuschagne JJ. 5-Aminolevulinic Acid-Guided Surgery for Recurrent Supratentorial Pediatric Neoplasms. World Neurosurg 2020; 141:e763-e769. [PMID: 32526366 DOI: 10.1016/j.wneu.2020.06.019] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 05/30/2020] [Accepted: 06/02/2020] [Indexed: 12/20/2022]
Abstract
BACKGROUND The use of 5-aminolevulinic acid (5-ALA) in pediatric neuro-oncology is considered off-label, and little data are available on its use in tumor recurrence surgery. Here we present our experience with 5-ALA fluorescence-guided surgery for recurrent supratentorial tumors in the pediatric population. METHODS Eleven pediatric patients presenting with recurrence of a supratentorial high-grade malignancy (5 glioblastoma [GBM], 6 non-GBM) underwent 5-ALA-assisted surgery. Biopsy specimens were obtained from pathological and normal-appearing areas of the tumor margin. RESULTS From the margin of the tumor displaying solid fluorescence, a total of 36 samples were obtained. All of these histological samples were found to harbor tumor cells. From areas of vague enhancement, a total of 49 histological samples were taken, of which 38 samples (77%) harbored tumor cells. There was no significant difference in the percentage of biopsy-positive vague fluorescent areas between the GBM cases (80%) and non-GBM cases (75%). A total of 59 biopsy specimens were taken from the tumor margin that appeared completely negative for fluorescence. On analysis, 24 (40.7%) of these specimens demonstrated tumor cells. There was no significant difference in the number of false-negative biopsies between the GBM group (40%) and the non-GBM group (41%). CONCLUSIONS The positive predictive value of solid fluorescence is high in recurrent disease but is substantially lower in areas of vague fluorescence. The rate of false-negative fluorescence is high. 5-ALA should be considered as an adjuvant in revision surgery with the aforementioned caveats in mind.
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Affiliation(s)
- Jason John Labuschagne
- Department of Neurosurgery, University of the Witwatersrand, Johannesburg and Department of Paediatric Neurosurgery, Nelson Mandela Children's Hospital, Johannesburg, South Africa.
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32
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La Rocca G, Della Pepa GM, Menna G, Altieri R, Ius T, Rapisarda A, Olivi A, Sabatino G. State of the art of fluorescence guided techniques in neurosurgery. J Neurosurg Sci 2020; 63:619-624. [PMID: 31961115 DOI: 10.23736/s0390-5616.19.04854-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Achieving a safe and extensive neoplasm resection can be considered the main goal of brain tumor surgery. This paper is first aimed at providing an overview of the evolution of those tools serving the purpose. From the dawn of neurosurgery to the present days, major innovations have followed one another. However, those techniques may frequently lack of an instant biological feedback on the true extension and the infiltration of the tumor. Intraoperative fluorescence modalities could indeed fill this gap. Fluorescence guided surgery will be therefore introduced and discussed in this context. Our focus will be on the most common fluorescence techniques used in neurosurgery, namely 5-aminolevulinic acid, sodium fluorescein and in indocyanine green. Mode of action, strengths and weaknesses and level of evidence of each modality will be discussed.
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Affiliation(s)
- Giuseppe La Rocca
- Institute of Neurosurgery, A. Gemelli University Polyclinic, IRCCS and Foundation, Sacred Heart Catholic University, Rome, Italy - .,Unit of Neurosurgery, Mater Olbia Hospital, Olbia, Italy -
| | - Giuseppe M Della Pepa
- Institute of Neurosurgery, A. Gemelli University Polyclinic, IRCCS and Foundation, Sacred Heart Catholic University, Rome, Italy
| | - Grazia Menna
- Institute of Neurosurgery, A. Gemelli University Polyclinic, IRCCS and Foundation, Sacred Heart Catholic University, Rome, Italy
| | - Roberto Altieri
- Department of Neurological Surgery, G. Rodolico Policlinic University Hospital, Catania, Italy.,Division of Neurosurgery, Department of Neuroscience, University of Turin, Turin, Italy
| | - Tamara Ius
- Unit of Neurosurgery, Department of Neuroscience, Santa Maria della Misericordia University Hospital, Udine, Italy
| | - Alessandro Rapisarda
- Institute of Neurosurgery, A. Gemelli University Polyclinic, IRCCS and Foundation, Sacred Heart Catholic University, Rome, Italy
| | - Alessandro Olivi
- Institute of Neurosurgery, A. Gemelli University Polyclinic, IRCCS and Foundation, Sacred Heart Catholic University, Rome, Italy
| | - Giovanni Sabatino
- Institute of Neurosurgery, A. Gemelli University Polyclinic, IRCCS and Foundation, Sacred Heart Catholic University, Rome, Italy
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33
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Kenan S, Liang H, Goodman HJ, Jacobs AJ, Chan A, Grande DA, Levin AS. 5-Aminolevulinic acid tumor paint and photodynamic therapy for myxofibrosarcoma: an in vitro study. J Orthop Surg Res 2020; 15:94. [PMID: 32138774 PMCID: PMC7059315 DOI: 10.1186/s13018-020-01606-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 02/17/2020] [Indexed: 02/06/2023] Open
Abstract
Background 5-Aminolevulinic acid (5-ALA), a fluorescent contrast agent, has been used for tumor paint and photodynamic therapy (PDT) for various tumors, but its use with soft tissue sarcomas is not well documented. Myxofibrosarcoma, a subtype of soft tissue sarcoma with a high local recurrence rate, may benefit from similar types of treatment. The purpose of this study was to analyze the effects of 5-ALA tumor paint and PDT on a myxofibrosarcoma cell line. Methods Tumor paint was assessed by exposing micromass pellets of human adipose-derived stromal (ADS) cells or myxofibrosarcoma (MUG-Myx1) cells to 5-ALA. Cell pellets were then visualized using a microscope at established excitation and emission wavelengths. Corrected total cell fluorescence was calculated per accepted protocols. Photodynamic therapy was similarly assessed by exposing ADS and MUG-Myx1 cells to 5-ALA, with subsequent analysis via flow cytometry and real-time confocal microscopy. Results The use of 5-ALA tumor paint led to a selective fluorescence in MUG-Myx1 cells. Findings were confirmed by flow cytometry. Interestingly, flow cytometry results showed progressive selective cell death with increasing 5-ALA exposure as a result of the PDT effect. PDT was further confirmed using confocal microscopy, which revealed progressive cellular bubble formation consistent with advancing stages of cell death—a finding that was not seen in control ADS cells. Conclusions 5-ALA tumor paint and PDT were successfully used on a human myxofibrosarcoma cell line (MUG-Myx1). Results from this study showed both selective fluorescent tagging and selective cytotoxicity of 5-ALA toward malignant myxofibrosarcoma cells, while sparing benign adipose control cells. This finding was further confirmed in a dramatic time-lapse video, visually confirming active, targeted cell death. 5-ALA’s two-pronged application of selective tumor identification and cytotoxicity may transform surgical and medical approaches for treating soft tissue sarcomas.
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Affiliation(s)
- Shachar Kenan
- Department of Orthopaedic Surgery, North Shore-Long Island Jewish Hospital, Northwell Health System, 270-05 76th Avenue, New Hyde Park, NY, 11040, USA
| | - Haixiang Liang
- Orthopaedic Research Laboratory, The Feinstein Institute for Medical Research, 350 Community Drive, Manhasset, NY, 11030, USA
| | - Howard J Goodman
- Department of Orthopaedic Surgery, North Shore-Long Island Jewish Hospital, Northwell Health System, 270-05 76th Avenue, New Hyde Park, NY, 11040, USA
| | - Andrew J Jacobs
- Hofstra Northwell School of Medicine, 500 Hofstra University, Hempstead, NY, 11549, USA
| | - Amanda Chan
- Microscopy Facility, The Feinstein Institute for Medical Research, 350 Community Drive, Manhasset, NY, 11030, USA
| | - Daniel A Grande
- Orthopaedic Research Laboratory, The Feinstein Institute for Medical Research, 350 Community Drive, Manhasset, NY, 11030, USA
| | - Adam S Levin
- Department of Orthopaedic Surgery and Oncology, The Johns Hopkins University School of Medicine, 601 North Caroline Street, Baltimore, MD, 21287, USA.
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Boschi A, Della Puppa A. 5-ALA fluorescence on tumors different from malignant gliomas. Review of the literature and our experience. J Neurosurg Sci 2019; 63:661-669. [PMID: 31355622 DOI: 10.23736/s0390-5616.19.04766-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
INTRODUCTION Fluorescence guided surgery with 5-aminolevulinic acid (5-ALA) is a well-established technique for improving resection of malignant cerebral glioma. In recent years, this technique is being increasingly applied off label to other brain tumor entities such as Low-grade glioma, meningioma, metastases, lymphoma and other central nervous system tumors. In this paper We collected all the data of 5-ALA guided surgery in "not malignant glioma" in literature compared to our experience. EVIDENCE ACQUISITION We searched the PubMed/Medline database all clinical series reporting 5-ALA guided-surgery in not malignant glioma. We reviewed all data also showing our experience. EVIDENCE SYNTHESIS Fluorescence guided surgery with 5-ALA might be helpful not only in high-grade glioma but also in other brain tumor especially in Low grade glioma with a suspect of anaplastic spot, meningioma with bone invasion or parenchymal infiltration, ependymoma, lymphoma and pediatric tumors. CONCLUSIONS Due to the relatively few number or clinical studies, prospective clinical trials are needed to increase the overall level of evidence concerning the usage of 5-ALA in CNS tumors different from high-grade glioma. Furthermore, a greater us of new tools such as, spectroscopy or confocal microscope or the use of combination of other fluorescence could make more effective this technique.
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Affiliation(s)
- Andrea Boschi
- Department of Neurosurgery, Careggi Hospital, University of Florence, Florence, Italy
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Ji SY, Kim JW, Park CK. Experience Profiling of Fluorescence-Guided Surgery I: Gliomas. Brain Tumor Res Treat 2019; 7:98-104. [PMID: 31686440 PMCID: PMC6829086 DOI: 10.14791/btrt.2019.7.e38] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2019] [Revised: 07/23/2019] [Accepted: 08/06/2019] [Indexed: 12/21/2022] Open
Abstract
Background Numerous studies reported a usefulness of 5-aminolevulinic acid (5-ALA) fluorescence-guided surgery (FGS) in high grade gliomas. However, fluorescence patterns and intensities are variable among gliomas. In this study, we report our extensive experience with FGS in various gliomas, focusing on epidemiological data of fluorescence patterns. Methods A total of 827 histologically proven glioma patients out of 900 brain tumor patients who had undergone FGS using 5-ALA during the period of 8.5 years between July 2010 and January 2019 were analyzed. Indications of FGS in glioma surgery are evidence for possible high-grade foci in putative gliomas in preoperative MRI. Results Among the 827 gliomas, the number of cases corresponding to 2016 World Health Organization (WHO) grade IV, III, II, and I are 528 (58.7%), 193 (21.4%), 87 (9.7%) and 19 (2.1%), respectively. In terms of fluorescence rate, grade IV gliomas showed positive fluorescence in 95.4% of cases including strong intensity in 85.6%. Grade III gliomas showed fluorescence in about half of cases (55.0%), but 45.0% of the cases showed no fluorescence at all. Anaplastic oligodendroglioma had a higher positive rate (63.9%) than anaplastic astrocytoma (46.2%). Both grade II and I gliomas still showed positive fluorescence in about one-fourth of cases (24.1% and 26.3% respectively). Among them ependymoma and pilocytic astrocytoma were fluorescence-prone tumors. Conclusion This epidemiological data of 5-ALA fluorescence in various grades of glioma provides a basic reference to the clinical application of FGS with 5-ALA in glioma surgery.
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Affiliation(s)
- So Young Ji
- Department of Neurosurgery, Seoul National University Hospital, Seoul, Korea
| | - Jin Wook Kim
- Department of Neurosurgery, Seoul National University Hospital, Seoul, Korea.,Department of Neurosurgery, Seoul National University College of Medicine, Seoul, Korea
| | - Chul Kee Park
- Department of Neurosurgery, Seoul National University Hospital, Seoul, Korea.,Department of Neurosurgery, Seoul National University College of Medicine, Seoul, Korea.
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