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Morozas A, Malyško-Ptašinskė V, Kulbacka J, Ivaška J, Ivaškienė T, Novickij V. Electrochemotherapy for head and neck cancers: possibilities and limitations. Front Oncol 2024; 14:1353800. [PMID: 38434679 PMCID: PMC10905418 DOI: 10.3389/fonc.2024.1353800] [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: 12/11/2023] [Accepted: 01/29/2024] [Indexed: 03/05/2024] Open
Abstract
Head and neck cancer continues to be among the most prevalent types of cancer globally, yet it can be managed with appropriate treatment approaches. Presently, chemotherapy and radiotherapy stand as the primary treatment modalities for various groups and regions affected by head and neck cancer. Nonetheless, these treatments are linked to adverse side effects in patients. Moreover, due to tumor resistance to multiple drugs (both intrinsic and extrinsic) and radiotherapy, along with numerous other factors, recurrences or metastases often occur. Electrochemotherapy (ECT) emerges as a clinically proven alternative that offers high efficacy, localized effect, and diminished negative factors. Electrochemotherapy involves the treatment of solid tumors by combining a non-permeable cytotoxic drug, such as bleomycin, with a locally administered pulsed electric field (PEF). It is crucial to employ this method effectively by utilizing optimal PEF protocols and drugs at concentrations that do not possess inherent cytotoxic properties. This review emphasizes an examination of diverse clinical practices of ECT concerning head and neck cancer. It specifically delves into the treatment procedure, the choice of anti-cancer drugs, pre-treatment planning, PEF protocols, and electroporation electrodes as well as the efficacy of tumor response to the treatment and encountered obstacles. We have also highlighted the significance of assessing the spatial electric field distribution in both tumor and adjacent tissues prior to treatment as it plays a pivotal role in determining treatment success. Finally, we compare the ECT methodology to conventional treatments to highlight the potential for improvement and to facilitate popularization of the technique in the area of head and neck cancers where it is not widespread yet while it is not the case with other cancer types.
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Affiliation(s)
- Arnoldas Morozas
- Department of Immunology and Bioelectrochemistry, State Research Institute Centre of Innovative Medicine, Vilnius, Lithuania
| | | | - Julita Kulbacka
- Department of Immunology and Bioelectrochemistry, State Research Institute Centre of Innovative Medicine, Vilnius, Lithuania
- Department of Molecular and Cellular Biology, Wroclaw Medical University, Wroclaw, Poland
| | - Justinas Ivaška
- Department of Immunology and Bioelectrochemistry, State Research Institute Centre of Innovative Medicine, Vilnius, Lithuania
- Faculty of Medicine, Vilnius University, Vilnius, Lithuania
| | - Tatjana Ivaškienė
- Department of Immunology and Bioelectrochemistry, State Research Institute Centre of Innovative Medicine, Vilnius, Lithuania
| | - Vitalij Novickij
- Department of Immunology and Bioelectrochemistry, State Research Institute Centre of Innovative Medicine, Vilnius, Lithuania
- Faculty of Electronics, Vilnius Gediminas Technical University, Vilnius, Lithuania
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Tiefenbach M, Schneider G, Riemann R, Symeou L, Bohr C, Lippert B. [Electrochemotherapy in oto-rhino-laryngology in Germany]. Laryngorhinootologie 2022; 101:195-205. [PMID: 35021242 DOI: 10.1055/a-1722-3252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Magnus Tiefenbach
- Hals-Nasen-Ohrenklinik, Am Gesundbrunnen 20-26, SLK-Kliniken, Heilbronn, Germany
| | | | | | - Luisa Symeou
- Klinik und Poliklinik für Hals-Nasen-Ohren-Heilkunde, Universitätsklinikum Regensburg, Regensburg, Germany
| | - Christopher Bohr
- Klinik und Poliklinik für Hals-Nasen-Ohren-Heilkunde, Universitätsklinikum Regensburg, Regensburg, Germany
| | - Burkard Lippert
- Hals-Nasen-Ohrenklinik, Am Gesundbrunnen 20-26, SLK-Kliniken, Heilbronn, Germany
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Riva G, Salonia L, Fassone E, Sapino S, Piano F, Pecorari G. Quality of Life in Electrochemotherapy for Cutaneous and Mucosal Head and Neck Tumors. J Clin Med 2021; 10:jcm10194366. [PMID: 34640382 PMCID: PMC8509577 DOI: 10.3390/jcm10194366] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 09/18/2021] [Accepted: 09/21/2021] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Primary or recurrent head and neck cancer of skin or mucosa represents a challenge for clinicians and could be debilitating for the patient. Electrochemotherapy (ECT) emerged as a local ablative procedure for cutaneous and mucosal head and neck tumors. The aim of this observational study was the evaluation of quality of life (QoL) after ECT in patients without other surgical or radiation options as curative treatment. MATERIALS AND METHODS The procedure was performed according the ESOPE (European Standard Operating procedure of Electrochemotherapy) protocol. Twenty-seven patients were evaluated before ECT (T0) and 1 (T1), 3 (T2), and 6 (T3) months after the procedure. QoL was assessed by means of the EORTC QLQ-C30 and EORTC QLQ-H&N35 questionnaires. RESULTS The objective tumor response rate was 48% (11% CR, 37% PR). Bleeding control was achieved in 7/7 patients who experienced bleeding prior to ECT. QoL improvement was observed after the procedure. In particular, global health status and social functioning were higher after ECT (p 0.026 and 0.043), while pain, pain-killers use and appetite loss decreased (p 0.045, 0.025 and 0.002). CONCLUSION ECT represents a safe and effective treatment for skin and mucosal head and neck tumors without other curative options. It ensures a good pain and bleeding control without worsening of QoL.
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Affiliation(s)
- Giuseppe Riva
- Division of Otorhinolaryngology, Department of Surgical Sciences, University of Turin, 10126 Turin, Italy; (E.F.); (S.S.); (F.P.); (G.P.)
- Correspondence:
| | - Laura Salonia
- Division of Otorhinolaryngology, Santa Croce Hospital, 10024 Moncalieri, Italy;
| | - Elisabetta Fassone
- Division of Otorhinolaryngology, Department of Surgical Sciences, University of Turin, 10126 Turin, Italy; (E.F.); (S.S.); (F.P.); (G.P.)
| | - Silvia Sapino
- Division of Otorhinolaryngology, Department of Surgical Sciences, University of Turin, 10126 Turin, Italy; (E.F.); (S.S.); (F.P.); (G.P.)
| | - Fabrizio Piano
- Division of Otorhinolaryngology, Department of Surgical Sciences, University of Turin, 10126 Turin, Italy; (E.F.); (S.S.); (F.P.); (G.P.)
| | - Giancarlo Pecorari
- Division of Otorhinolaryngology, Department of Surgical Sciences, University of Turin, 10126 Turin, Italy; (E.F.); (S.S.); (F.P.); (G.P.)
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Surgeons reaching satisfying outcomes without surgery: nasal dorsum skin cancer recurrence treated with electrochemotherapy. Anticancer Drugs 2021; 31:751-753. [PMID: 32697469 DOI: 10.1097/cad.0000000000000946] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Cutaneous squamous cell carcinoma of the head and neck district are generally treated with surgery. Surgery is the standard treatment in early stages and local advanced tumors, followed by adjuvant therapy, radiation or concurrent chemoradiation therapy. Local recurrence treatment depends on previous therapies, though radical surgery is often the first choice at the expense of anatomy preservation. We present the case of a patient with cutaneous squamous cell carcinoma of the nasal dorsum which relapsed after surgery and radiation therapy. The patient refused radical surgery and electrochemotherapy under general anesthesia was administered. After 6 months from treatment, the patient showed a complete clinical response. Electrochemotherapy could be considered as an alternative to surgery in small lesion when other approaches are refused.
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Electrochemotherapy in the Treatment of Head and Neck Cancer: Current Conditions and Future Directions. Cancers (Basel) 2021; 13:cancers13061418. [PMID: 33808884 PMCID: PMC8003720 DOI: 10.3390/cancers13061418] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 02/15/2021] [Accepted: 02/16/2021] [Indexed: 12/15/2022] Open
Abstract
Simple Summary Electrochemotherapy (ECT) was first introduced in the late 1980s and was initially used mainly on cutaneous tumors. It has now evolved into a clinically verified treatment approach. Thanks to its high feasibility, it has been extended to treating mucosal and deep-seated tumors, including head and neck cancer (HNC) and in heavily pretreated settings. This review describes current knowledge and data on the use of ECT in various forms of HNCs across different clinical settings, with attention to future clinical and research perspectives. Abstract Despite recent advances in the development of chemotherapeutic drug, treatment for advanced cancer of the head and neck cancer (HNC) is still challenging. Options are limited by multiple factors, such as a prior history of irradiation to the tumor site as well as functional limitations. Against this background, electrochemotherapy (ECT) is a new modality which combines administration of an antineoplastic agent with locally applied electric pulses. These pulses allow the chemotherapeutic drug to penetrate the intracellular space of the tumor cells and thereby increase its cytotoxicity. ECT has shown encouraging efficacy and a tolerable safety profile in many clinical studies, including in heavily pre-treated HNC patients, and is considered a promising strategy. Efforts to improve its efficacy and broaden its application are now ongoing. Moreover, the combination of ECT with recently developed novel therapies, including immunotherapy, represented by immune checkpoint inhibitor (ICI)s, has attracted attention for its potent theoretical rationale. More extensive, well-organized clinical studies and timely updating of consensus guidelines will bring this hopeful treatment to HNC patients under challenging situations.
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Strojan P, Grošelj A, Serša G, Plaschke CC, Vermorken JB, Nuyts S, de Bree R, Eisbruch A, Mendenhall WM, Smee R, Ferlito A. Electrochemotherapy in Mucosal Cancer of the Head and Neck: A Systematic Review. Cancers (Basel) 2021; 13:cancers13061254. [PMID: 33809141 PMCID: PMC7999968 DOI: 10.3390/cancers13061254] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Revised: 03/07/2021] [Accepted: 03/09/2021] [Indexed: 12/24/2022] Open
Abstract
Electrochemotherapy (ECT) is a local ablative treatment that is based on the reversible electroporation and intracellular accumulation of hydrophilic drug molecules, which greatly increases their cytotoxicity. In mucosal head and neck cancer (HNC), experience with ECT is limited due to the poor accessibility of tumors. In order to review the experience with ECT in mucosal HNC, we undertook a systematic review of the literature. In 22 articles, published between 1998 and 2020, 16 studies with 164 patients were described. Curative and palliative intent treatment were given to 36 (22%) and 128 patients (78%), respectively. The majority of tumors were squamous cell carcinomas (79.3%) and located in the oral cavity (62.8%). In the curative intent group, complete response after one ECT treatment was achieved in 80.5% of the patients, and in the palliative intent group, the objective (complete and partial) response rate was 73.1% (31.2% and 41.9%). No serious adverse events were reported during or soon after ECT and late effects were rare (19 events in 17 patients). The quality-of-life assessments did not show a significant deterioration at 12 months post-ECT. Provided these preliminary data are confirmed in randomized controlled trials, ECT may be an interesting treatment option in selected patients with HNC not amenable to standard local treatment.
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Affiliation(s)
- Primož Strojan
- Department of Radiation Oncology, Institute of Oncology Ljubljana and Faculty of Medicine, University of Ljubljana, 1000 Ljubljana, Slovenia
- Correspondence: ; Tel.: +386-1-5879290
| | - Aleš Grošelj
- Department of Otorhinolaryngology and Cervicofacial Surgery, University Medical Centre Ljubljana and Faculty of Medicine, University of Ljubljana, 1000 Ljubljana, Slovenia;
| | - Gregor Serša
- Department of Experimental Oncology, Institute of Oncology Ljubljana and Faculty of Health Sciences, University of Primorska, Izola and Faculty of Health Sciences, University of Ljubljana, 1000 Ljubljana, Slovenia;
| | - Christina Caroline Plaschke
- Department of Otorhinolaryngology, Head & Neck Surgery and Audiology, Copenhagen University Hospital Rigshospitalet, 2100 Copenhagen, Denmark;
| | - Jan B. Vermorken
- Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, and Department of Medical Oncology, Antwerp University Hospital, 2650 Edegem, Belgium;
| | - Sandra Nuyts
- Department of Oncology, KU Leuven, University of Leuven and Department of Radiation Oncology, UZ Leuven, 3000 Leuven, Belgium;
| | - Remco de Bree
- Department of Head and Neck Surgical Oncology, UMC Utrecht Cancer Center, University Medical Center Utrecht, Utrecht University, 3584 Utrecht, The Netherlands;
| | - Avraham Eisbruch
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI 48109-5010, USA;
| | - William M. Mendenhall
- Department of Radiation Oncology, University of Florida, Gainesville, FL 32610-0385, USA;
| | - Robert Smee
- Department of Radiation Oncology, The Prince of Wales Cancer Centre, Sydney, NSW 2031, Australia;
| | - Alfio Ferlito
- Coordinator of the International Head and Neck Scientific Group, 35100 Padua, Italy;
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Pichi B, Petruzzi G, Zocchi J, Pepe G, Moretto S, Manciocco V, Pellini R. Response to Electrochemotherapy in a Patient With Advanced Oropharyngeal Squamous Cell Carcinoma. JAMA Otolaryngol Head Neck Surg 2021; 146:1178-1179. [PMID: 32815994 DOI: 10.1001/jamaoto.2020.2093] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Barbara Pichi
- Department of Otolaryngology-Head and Neck Surgery, Regina Elena National Cancer Institute IRCCS, Rome, Italy
| | - Gerardo Petruzzi
- Department of Otolaryngology-Head and Neck Surgery, Regina Elena National Cancer Institute IRCCS, Rome, Italy
| | - Jacopo Zocchi
- Department of Otolaryngology-Head and Neck Surgery, Regina Elena National Cancer Institute IRCCS, Rome, Italy
| | - Giovanni Pepe
- Department of Otolaryngology and Otoneurosurgery, Azienda Ospedaliero-Universitaria di Parma, Parma, Italy
| | - Silvia Moretto
- Department of Otolaryngology-Head and Neck Surgery, Regina Elena National Cancer Institute IRCCS, Rome, Italy
| | - Valentina Manciocco
- Department of Otolaryngology-Head and Neck Surgery, Regina Elena National Cancer Institute IRCCS, Rome, Italy
| | - Raul Pellini
- Department of Otolaryngology-Head and Neck Surgery, Regina Elena National Cancer Institute IRCCS, Rome, Italy
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Electrochemotherapy in the head and neck area: an addition to the treatment armamentarium. Curr Opin Otolaryngol Head Neck Surg 2020; 28:112-117. [PMID: 32102006 DOI: 10.1097/moo.0000000000000609] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
PURPOSE OF REVIEW Electrochemotherapy (ECT) is increasingly used in different settings in head and neck cancer patients when conventional treatment options are not available. RECENT FINDINGS Recent improvements of electroporation and ECT include new advanced electrode probes, the combination with intratumorally injected supraphysiological doses of calcium and an update of the standard operating procedures. SUMMARY ECT is a treatment modality that combines administration of a chemotherapeutic drug, for example, bleomycin, with electroporation therapy (EPT). EPT uses brief, high-intensity, pulsed electrical currents to enhance the uptake of cytotoxic drugs by producing a transient increase in cell wall permeability. ECT increases the effect of cytostatic drugs, is independent on histology of the lesion, enables treatment to previously treated areas, preserves healthy tissue, has no significant side effects (low-dose chemotherapy) and enables repeated treatments. ECT can be combined with other treatment modalities and is an addition to the current treatment options of head and neck cancer. ECT is not only able to palliate symptoms but can also provide complete responses and curation.
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Boosting the Immune Response with the Combination of Electrochemotherapy and Immunotherapy: A New Weapon for Squamous Cell Carcinoma of the Head and Neck? Cancers (Basel) 2020; 12:cancers12102781. [PMID: 32998297 PMCID: PMC7601050 DOI: 10.3390/cancers12102781] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 09/11/2020] [Accepted: 09/23/2020] [Indexed: 01/04/2023] Open
Abstract
Simple Summary Squamous cell carcinoma of the head and neck (SCCHN) represents a problem of utmost concern and, for many clinicians and surgeons, an enormous challenge. Currently, new generation immunotherapy which avails of check point inhibitors, namely molecules capable of restoring the host’s immune system strongly depressed by the presence of tumor cells, is gaining increasing importance. Nevertheless, immunotherapy alone is not always effective in some patients, in particular those having a bulky and highly symptomatic disease. These last require the addition of locoregional strategies able to reduce the tumor mass and to assist immunotherapy in producing its effect. Electrochemotherapy (ECT) is a strategy able to associate the electroporation of tumor cells and the simultaneous administration of antineoplastic drugs, so as to concentrate the latter directly in the tumor site. The combination of ECT and immunotherapy could be very effective particularly in patients having a bulky/highly symptomatic SCCHN. Abstract Head and neck squamous cell carcinomas (SCCHN) are not rare malignancies and account for 7% of all solid tumors. Prognosis of SCCHN patients strongly depends on tumor extension, site of onset, and genetics. Advanced disease (recurrent/metastatic) is associated with poor prognosis, with a median overall survival of 13 months. In these patients, immunotherapy may represent an interesting option of treatment, given the good results reached by check-point inhibitors in clinical practice. Nevertheless, only a minor number of patients with advanced disease respond to immunotherapy, and, disease progressions/hyper-progressions are common. The latter could be a very difficult issue, especially in patients having a wide and highly symptomatic head/neck mass. Given the potentiality to boost the immune response of some local modalities, such as electrochemotherapy, a possible future approach may take into account the combination of electrochemotherapy and immunotherapy to treat patients affected by SCCHN, suffering from symptomatic lesions that need rapid debulking.
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Fiorentzis M, Katopodis P, Kalirai H, Seitz B, Viestenz A, Coupland SE. Image Analysis of 3D Conjunctival Melanoma Cell Cultures Following Electrochemotherapy. Biomedicines 2020; 8:biomedicines8060158. [PMID: 32545782 PMCID: PMC7344416 DOI: 10.3390/biomedicines8060158] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Revised: 06/05/2020] [Accepted: 06/09/2020] [Indexed: 02/07/2023] Open
Abstract
Three-dimensional (3D) cell cultures represent small avascular tumors in vitro and simulate some of the biological characteristics of solid tumors, enhancing the evaluation of anticancer drug efficacy. Automated image analysis can be used for the assessment of tumor growth and documentation of changes in the size parameters of 3D tumor spheroids following anticancer treatments such as electrochemotherapy. The objective of this article is to assess the effect of various electroporation (EP) conditions (500-750 Volts/cm, 8-20 pulses, 100 µs pulse duration, 5 Hz repetition rate) combined with different bleomycin concentrations (1-2.5 ug/mL) on normal epithelial (HCjE-Gi) and conjunctival melanoma (CRMM1, CRMM2) 3D-cell cultures, through an automated image analysis and a comparison with standard histological assays. A reduction in tumor mass with loss of cell definition was observed after ECT (750 Volts/cm with eight pulses and 500 Volts/cm with 20 pulses) with bleomycin (1 μg/mL and 2.5 μg/mL) in the histological and immunohistochemical analyses of 3D CRMM1 and CRMM2 spheroids, whereas an increase in volume and a decrease in sphericity was documented in the automated image analysis and 3D visualization of both melanoma cell lines. For all other treatment conditions and for the HCjE-Gi cell line, no significant changes to their morphological features were observed. Image analysis with integrated software tools provides an accessible and comprehensive platform for the preliminary selection of homogenous spheroids and for the monitoring of drug efficacy, implementing the traditional screening methods.
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Affiliation(s)
- Miltiadis Fiorentzis
- Department of Ophthalmology, University Hospital Essen, 45147 Essen, Germany
- Correspondence: ; Tel.: +49-201-723-2900
| | - Periklis Katopodis
- Biosciences, College of Health, Medicine and Life Sciences, Brunel University, London UB8 3PH, UK;
| | - Helen Kalirai
- Liverpool Ocular Oncology Research Group, Department of Molecular and Clinical Cancer Medicine, Institute of Translational Medicine, University of Liverpool, Liverpool L69 3BX, UK; (H.K.); (S.E.C.)
- Liverpool Clinical Laboratories, Liverpool University Hospitals NHS Foundation Trust, Liverpool L69 3GA, UK
| | - Berthold Seitz
- Department of Ophthalmology, Saarland University Medical Center, 66424 Homburg, Germany;
| | - Arne Viestenz
- Department of Ophthalmology, University Hospital Halle, 06112 Halle, Germany;
| | - Sarah E. Coupland
- Liverpool Ocular Oncology Research Group, Department of Molecular and Clinical Cancer Medicine, Institute of Translational Medicine, University of Liverpool, Liverpool L69 3BX, UK; (H.K.); (S.E.C.)
- Liverpool Clinical Laboratories, Liverpool University Hospitals NHS Foundation Trust, Liverpool L69 3GA, UK
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Maintaining Quality of Life: Electrochemotherapy for Palliative Periorbital Malignancy. Ophthalmic Plast Reconstr Surg 2019; 35:e138-e142. [PMID: 31593036 DOI: 10.1097/iop.0000000000001468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Electrochemotherapy has been used successfully for treatment of recurrent head and neck skin cancers and skin metastasis. It combines both electroporation and chemotherapy. The authors report 4 patients, who all had metastatic periorbital malignancy. These patients were palliative with widespread metastatic malignancy. All patients had either already had multiple procedures or declined surgical resection and preferred less involved measures. The authors report technique and outcomes. Patient 1: 83-year-old man with recurrent malignant melanoma (MM) nodules (BRAF negative) in the left medial orbit and medial canthal area after rhinectomy and previous resections. Patient 2: 72-year-old man with metastatic MM who developed painful and unsightly metastatic nodules on the right and left forehead and the left medial canthus. Patient 3: 93-year-old man with background of widespread multiple myeloma, considered palliative. He developed a left forehead SCC, apparent as a fungating ulcer, which caused significant pain due to perineural invasion. Patient 4: 91-year-old woman with recurrent metastatic sebaceous cell carcinoma of the left lower eyelid obstructing her vision. All patients experienced an improvement in their pain and quality of life. None of the patients developed any significant periorbital inflammation or adverse complications. Electrochemotherapy may be a useful palliative treatment for periorbital tumors. It improves pain and reduces tumor volume. It can be considered for tumors where palliative radiotherapy may be contraindicated.Electrochemotherapy is a useful palliative treatment for metastases to the periorbital area, improving pain and size of the tumors.
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