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Layer JP, Fischer P, Dejonckheere CS, Sarria GR, Mispelbaum R, Hattenhauer T, Wiegreffe S, Glasmacher AR, Layer K, Nour Y, Caglayan L, Grau F, Müdder T, Köksal M, Scafa D, Giordano FA, Lopez-Pastorini A, Stoelben E, Schmeel LC, Leitzen C. Safety and efficacy of helical tomotherapy following lung-sparing surgery in locally advanced malignant pleural mesothelioma. Strahlenther Onkol 2023:10.1007/s00066-023-02174-7. [PMID: 37993554 DOI: 10.1007/s00066-023-02174-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 10/22/2023] [Indexed: 11/24/2023]
Abstract
PURPOSE To assess the value of radiation therapy (RT) with helical tomotherapy (HT) in the management of locally advanced malignant pleural mesothelioma (MPM) receiving no or lung-sparing surgery. METHODS Consecutive MPM cases not undergoing extrapleural pneumonectomy and receiving intensity-modulated (IM) HT were retrospectively evaluated for local control, distant control, progression-free survival (PFS), and overall survival (OS). Impact of age, systemic treatment, RT dose, and recurrence patterns was analyzed by univariate and multivariate analysis. As a secondary endpoint, reported toxicity was assessed. RESULTS A total of 34 localized MPM cases undergoing IMHT were identified, of which follow-up data were available for 31 patients. Grade 3 side effects were experienced by 26.7% of patients and there were no grade 4 or 5 events observed. Median PFS was 19 months. Median OS was 20 months and the rates for 1‑ and 2‑year OS were 86.2 and 41.4%, respectively. OS was significantly superior for patients receiving adjuvant chemotherapy (p = 0.008). CONCLUSION IMHT of locally advanced MPM after lung-sparing surgery is safe and feasible, resulting in satisfactory local control and survival. Adjuvant chemotherapy significantly improves OS. Randomized clinical trials incorporating modern RT techniques as a component of trimodal treatment are warranted to establish an evidence-based standard of care pattern for locally advanced MPM.
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Affiliation(s)
- Julian P Layer
- Department of Radiation Oncology, University Hospital Bonn/Venusberg-Campus 1, 53127, Bonn, Germany.
- Institute of Experimental Oncology, University Hospital Bonn, Bonn, Germany.
| | - Pascal Fischer
- Department of Thoracic Surgery, St. Hildegardis Hospital, Augustinerinnen Krankenhäuser gGmbH, Cologne, Germany
| | - Cas S Dejonckheere
- Department of Radiation Oncology, University Hospital Bonn/Venusberg-Campus 1, 53127, Bonn, Germany
| | - Gustavo R Sarria
- Department of Radiation Oncology, University Hospital Bonn/Venusberg-Campus 1, 53127, Bonn, Germany
| | - Rebekka Mispelbaum
- Department of Oncology, Hematology, Rheumatology and Immune-Oncology, University Hospital Bonn, Bonn, Germany
| | - Tessa Hattenhauer
- Department of Oncology, Hematology, Rheumatology and Immune-Oncology, University Hospital Bonn, Bonn, Germany
| | - Shari Wiegreffe
- Department of Radiation Oncology, University Hospital Bonn/Venusberg-Campus 1, 53127, Bonn, Germany
| | - Andrea R Glasmacher
- Department of Radiation Oncology, University Hospital Bonn/Venusberg-Campus 1, 53127, Bonn, Germany
| | - Katharina Layer
- Department of Radiation Oncology, University Hospital Bonn/Venusberg-Campus 1, 53127, Bonn, Germany
| | - Youness Nour
- Department of Radiation Oncology, University Hospital Bonn/Venusberg-Campus 1, 53127, Bonn, Germany
| | - Lara Caglayan
- Department of Radiation Oncology, University Hospital Bonn/Venusberg-Campus 1, 53127, Bonn, Germany
| | - Franziska Grau
- Department of Radiation Oncology, University Hospital Bonn/Venusberg-Campus 1, 53127, Bonn, Germany
| | - Thomas Müdder
- Department of Radiation Oncology, University Hospital Bonn/Venusberg-Campus 1, 53127, Bonn, Germany
| | - Mümtaz Köksal
- Department of Radiation Oncology, University Hospital Bonn/Venusberg-Campus 1, 53127, Bonn, Germany
| | - Davide Scafa
- Department of Radiation Oncology, University Hospital Bonn/Venusberg-Campus 1, 53127, Bonn, Germany
| | - Frank A Giordano
- Department of Radiation Oncology, University Medical Center Mannheim, Mannheim, Germany
- DKFZ-Hector Cancer Institute of the University Medical Center Mannheim, Mannheim, Germany
| | - Alberto Lopez-Pastorini
- Department of Thoracic Surgery, St. Hildegardis Hospital, Augustinerinnen Krankenhäuser gGmbH, Cologne, Germany
| | - Erich Stoelben
- Department of Thoracic Surgery, St. Hildegardis Hospital, Augustinerinnen Krankenhäuser gGmbH, Cologne, Germany
| | | | - Christina Leitzen
- Department of Radiation Oncology, University Hospital Bonn/Venusberg-Campus 1, 53127, Bonn, Germany
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Patel R, Ludmir EB, Miccio JA, Menon H, Barsky AR, Mesko SM, Kodali M, Lautenschlaeger T, Adeberg S, Simone CB, Verma V. Disease-Related Outcomes and Toxicities of Intensity Modulated Radiation Therapy After Lung-Sparing Pleurectomy for Malignant Pleural Mesothelioma: A Systematic Review. Pract Radiat Oncol 2020; 10:423-433. [PMID: 32088429 DOI: 10.1016/j.prro.2020.02.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 01/06/2020] [Accepted: 02/08/2020] [Indexed: 12/15/2022]
Abstract
PURPOSE This review explores the use of intensity modulated radiation therapy (IMRT) after lung-sparing surgery in malignant pleural mesothelioma (MPM). Because severe toxicities have been documented after radiation therapy for MPM, its use remains controversial, especially as modern surgical management has shifted toward lung-sparing pleurectomy/decortication. IMRT is an advanced technique that may allow for safer radiation therapy delivery, but there remains limited data (including no summative data) to support this notion. METHODS AND MATERIALS We performed a systematic review evaluating the safety and efficacy of post-pleurectomy IMRT (P-IMRT). A systematic review of PubMed using Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines was conducted for publications of all dates that specifically reported clinical outcomes and/or toxicities of P-IMRT in patients with MPM. Ten original studies were included in this review. RESULTS The incidence of grade 3 pneumonitis ranged from 0% to 16%, with all but 2 studies reporting rates below 9%. Grade 4 and 5 pneumonitis were observed in less than 1.5% of cases, except in one publication that used hypofractionated radiation therapy to doses >60 Gy. Crude local failure rates ranged from 19% to 60%, median progression free survival ranged from 12 to 16 months, and median overall survival ranged from 19 to 28 months. CONCLUSIONS P-IMRT produces relatively few higher-grade toxicities and has reasonable disease-related outcomes, especially when delivered using conventionally fractionated regimens to doses of 45 to 54 Gy and exercising careful attention to dose constraints during treatment planning. IMRT can thus be considered in well-selected patients in whom adequate survival after pleurectomy is expected. These data also support the initiation of the phase III NRG-LU006 trial of extended pleurectomy/decortication and chemotherapy with or without IMRT.
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Affiliation(s)
| | - Ethan B Ludmir
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Joseph A Miccio
- Department of Therapeutic Radiology, Yale University, New Haven, Connecticut
| | - Hari Menon
- University of Arizona College of Medicine, Phoenix, Phoenix, Arizona
| | - Andrew R Barsky
- Department of Radiation Oncology, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Shane M Mesko
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Manya Kodali
- Department of Radiation Oncology, Allegheny General Hospital, Pittsburgh, Pennsylvania
| | - Tim Lautenschlaeger
- Department of Radiation Oncology, Indiana University School of Medicine, Indianapolis, Indiana
| | - Sebastian Adeberg
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany
| | - Charles B Simone
- Department of Radiation Oncology, New York Proton Center, New York, New York
| | - Vivek Verma
- Department of Radiation Oncology, Allegheny General Hospital, Pittsburgh, Pennsylvania.
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3
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Cardiotoxicity of mediastinal radiotherapy. Rep Pract Oncol Radiother 2019; 24:629-643. [PMID: 31719801 DOI: 10.1016/j.rpor.2019.09.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Accepted: 09/21/2019] [Indexed: 12/16/2022] Open
Abstract
Aim To explore available recent literature related to cardiotoxicity following mediastinal radiation. Background Radiotherapy-related heart injury is well documented, with no apparent safety threshold dose. The number of long-term cancer survivors exposed to mediastinal radiotherapy at some point of their treatment is increasing. Heart dosimetric parameters are of great importance in developing a treatment plan, but few data are available regarding radiosensitivity and dose-volume constraints for specific heart structures. Materials and Methods In October 2018, we identified articles published after 1990 through a PubMed/MEDLINE database search. The authors examined rough search results and manuscripts not relevant for the topic were excluded. We extracted clinical outcomes following mediastinal radiotherapy of childhood cancers, lymphoma, medulloblastoma, thymic cancers and hematopoietic cell transplantation survivors and evaluated treatment planning data, whenever available. Results A total of 1311 manuscripts were identified in our first-round search. Of these manuscripts, only 115 articles, matching our selection criteria, were included. Conclusions Studies uniformly show a linear radiation dose-response relationship between mean absorbed dose to the heart (heart-Dmean) and the risk of dying as a result of cardiac disease, particularly when heart-Dmean exceeds 5 Gy. Limited data are available regarding dose-volume predictors for heart substructures and the risk of subsequent cardiac toxicity. An individual patient's cardiotoxicity risk can be modified with advanced treatment planning techniques, including deep inspiration breath hold. Proton therapy is currently showing advantages in improving treatment planning parameters when compared to advanced photon techniques in lymphoma, thymic malignancies, malignant mesothelioma and craniospinal irradiation.
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Key Words
- 2D-RT, two-dimensional radiotherapy
- 3D-CRT, three-dimensional conformal radiation therapy
- CI, confidence interval
- CSI, craniospinal irradiation
- CVD, Cardiovascular disease
- Cardiotoxicity
- Dmax, maximum absorbed dose in a specified volume
- Dmean, mean absorbed radiation dose in a specified volume
- Dose-volume predictors
- EQD2, equivalent dose in 2 Gy fractions
- G, grade
- Gy, Gray
- HR, hazard ratio
- HT, Helical tomotherapy
- IFRT, involved field radiotherapy
- IMRT, intensity modulated radiation therapy
- INRT, involved node radiotherapy
- ISRT, involved site radiotherapy
- LAD, left anterior descending artery
- Mediastinal radiotherapy
- Mediastinal tumours
- Mv, megavoltage
- NTCP, normal tissue complication probability
- Normal tissue complication probability
- OAR, organs at risk
- OR, odds ratio
- PTV, planning target volume
- RR, relative risks
- TBI, total body irradiation
- VMAT, volumetric modulated arc therapy
- Vx, receiving at last x Gy
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Qi XS, Yang L, Lee P, O'Connell D, Chu FI, Steinberg ML, Low DA. Fast, Low-Dose Megavoltage-Topogram Localization on TomoTherapy: Initial Clinical Experience With Mesothelioma Patients. Pract Radiat Oncol 2019; 9:373-380. [PMID: 31102690 DOI: 10.1016/j.prro.2019.05.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Revised: 03/25/2019] [Accepted: 05/06/2019] [Indexed: 10/26/2022]
Abstract
PURPOSE This study aimed to evaluate the potential of megavoltage-topogram (MV-topogram)-based alignment as an alternative to megavoltage computed tomography (MVCT) in reducing setup time and imaging dose for patients with malignant pleural mesothelioma who are receiving TomoTherapy. METHODS AND MATERIALS Twelve patients were enrolled in an ongoing institutional review board approved clinical trial at our institute. Patients were set up with a clinical protocol using red lasers. Anteroposterior (AP) and lateral (LAT) MV-topograms were acquired using gantry angles of 0°/90° with a 1 mm collimator opening, all multileaf collimator leaves open, a couch speed of 4 cm/s, and a 12.5-second scanning time. Routine MVCT scans were performed immediately afterward. The MV-topograms were reconstructed and enhanced using contrast-limited adaptive histogram equalization. Anteroposterior and LAT kilovoltage digital reconstructed topogram images were reconstructed based on TomoTherapy geometry from computed tomography simulation scans. Registrations between MV-topograms and kilovoltage-digital reconstructed topogram images were performed manually, and patients' daily shifts were recorded. Results were compared against the corresponding daily MVCT shifts. MV-topogram and MVCT doses were measured and recorded using an ion chamber on a cheese phantom with depths between 1 and 14 cm, as well as the times required to acquire the 2 image modalities. RESULTS The mean and standard deviation of shift discrepancies between MV-topogram and MVCT were 0.74 ± 2.08, -0.09 ± 4.46, and 0.45 ± 3.57 mm in the LAT, longitudinal, and vertical directions, respectively. The MVCT imaging doses measured were 14.74 to 26.92 times higher than the MV-topogram doses, depending on depth. On average, MV-topograms with a mean scan length of 50 cm achieved a 5-fold image acquisition time savings over MVCT, with a mean scan length of 38 cm. CONCLUSIONS MV-topograms has the potential to provide alignment performance equivalent to that of MVCT for patients with mesothelioma, with a significant reduction in imaging dose and acquisition time.
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Affiliation(s)
- X Sharon Qi
- Department of Radiation Oncology, University of California, Los Angeles, Los Angeles, California.
| | - Lisa Yang
- Department of Radiation Oncology, University of California, Los Angeles, Los Angeles, California
| | - Percy Lee
- Department of Radiation Oncology, University of California, Los Angeles, Los Angeles, California
| | - Dylan O'Connell
- Department of Radiation Oncology, University of California, Los Angeles, Los Angeles, California
| | - Fang-I Chu
- Department of Radiation Oncology, University of California, Los Angeles, Los Angeles, California
| | - Michael L Steinberg
- Department of Radiation Oncology, University of California, Los Angeles, Los Angeles, California
| | - Daniel A Low
- Department of Radiation Oncology, University of California, Los Angeles, Los Angeles, California
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5
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Leitzen C, Wilhelm-Buchstab T, Stumpf S, Heimann M, Koch D, Schmeel C, Simon B, Vornholt S, Garbe S, Röhner F, Schoroth F, Schild HH, Schüller H, Müdder T. Tomotherapy in malignant mesothelioma: a planning study to establish dose constraints. Strahlenther Onkol 2019; 195:668-676. [PMID: 30915490 DOI: 10.1007/s00066-019-01458-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Accepted: 03/14/2019] [Indexed: 01/15/2023]
Abstract
PURPOSE A planning study was performed for helical tomotherapy treatment. We evaluated the maximum achievable protection of organs at risk (OARs) in patients with malignant pleural mesothelioma after pleurectomy with simultaneous optimal target coverage. MATERIALS AND METHODS The datasets of 13 patients were included. The applied dose to the planning target volume (PTV) was 50.4 Gy with single doses of 1.8 Gy per fraction. Presuming optimal target coverage, we evaluated the applied dose to the OARs with special regard to the contralateral lung. RESULTS For left-(lsRT)/right(rsRT)-sided radiotherapy, target coverage for the PTV showed a D98 (mean) of 49.37/49.71 Gy (98.0%/98.6%) and a D2 (mean) of 54.19/54.61 Gy (107.5%/108.3%). The beam-on time was kept below 15 min. The achieved mean dose (D50) to the contralateral lung was kept below 4 Gy for lsRT and rsRT. With regard to the other organs at risk the applied doses were as follows: mean dose (lsRT): ipsilateral kidney (Dmean) 13.03 (5.32-22.18) Gy, contralateral kidney (Dmean) <2.0 Gy, heart (Dmean) 22.23 (13.57-27.72) Gy, spinal cord D1 <Gy; mean dose (rsRT): ipsilateral kidney (Dmean) 10.22 (6.30-18.04) Gy, contralateral kidney (Dmean) <2.1 Gy, heart (Dmean) 8.02 (6.0-10.38) Gy, spinal cord D1 <35.5 Gy. CONCLUSION With helical tomotherapy, postoperative treatment for malignant pleural mesothelioma after pleurectomy achieves good target coverage combined with simultaneous dose sparing to the (especially contralateral) OARs.
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Affiliation(s)
- Christina Leitzen
- Radiologische Klinik, FE Strahlentherapie, Universitätsklinik Bonn, Sigmund-Freud-Str. 25, 53105, Bonn, Germany.
| | - Timo Wilhelm-Buchstab
- Radiologische Klinik, FE Strahlentherapie, Universitätsklinik Bonn, Sigmund-Freud-Str. 25, 53105, Bonn, Germany
| | - Sabina Stumpf
- Radiologische Klinik, FE Strahlentherapie, Universitätsklinik Bonn, Sigmund-Freud-Str. 25, 53105, Bonn, Germany
| | - Martina Heimann
- Radiologische Klinik, FE Strahlentherapie, Universitätsklinik Bonn, Sigmund-Freud-Str. 25, 53105, Bonn, Germany
| | - David Koch
- Radiologische Klinik, FE Strahlentherapie, Universitätsklinik Bonn, Sigmund-Freud-Str. 25, 53105, Bonn, Germany
| | - Christopher Schmeel
- Radiologische Klinik, FE Strahlentherapie, Universitätsklinik Bonn, Sigmund-Freud-Str. 25, 53105, Bonn, Germany
| | - Birgit Simon
- Radiologische Klinik, FE Strahlentherapie, Universitätsklinik Bonn, Sigmund-Freud-Str. 25, 53105, Bonn, Germany
| | - Susanne Vornholt
- Radiologische Klinik, FE Strahlentherapie, Universitätsklinik Bonn, Sigmund-Freud-Str. 25, 53105, Bonn, Germany
| | - Stephan Garbe
- Radiologische Klinik, FE Strahlentherapie, Universitätsklinik Bonn, Sigmund-Freud-Str. 25, 53105, Bonn, Germany
| | - Fred Röhner
- Radiologische Klinik, FE Strahlentherapie, Universitätsklinik Bonn, Sigmund-Freud-Str. 25, 53105, Bonn, Germany
| | - Felix Schoroth
- Radiologische Klinik, FE Strahlentherapie, Universitätsklinik Bonn, Sigmund-Freud-Str. 25, 53105, Bonn, Germany
| | - Hans Heinz Schild
- Radiologische Klinik, FE Strahlentherapie, Universitätsklinik Bonn, Sigmund-Freud-Str. 25, 53105, Bonn, Germany
| | - Heinrich Schüller
- Radiologische Klinik, FE Strahlentherapie, Universitätsklinik Bonn, Sigmund-Freud-Str. 25, 53105, Bonn, Germany
| | - Thomas Müdder
- Radiologische Klinik, FE Strahlentherapie, Universitätsklinik Bonn, Sigmund-Freud-Str. 25, 53105, Bonn, Germany
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Fodor A, Broggi S, Incerti E, Dell'Oca I, Fiorino C, Samanes Gajate AM, Pasetti M, Cattaneo MG, Passoni P, Gianolli L, Calandrino R, Picchio M, Di Muzio N. Moderately Hypofractionated Helical IMRT, FDG-PET/CT-guided, for Progressive Malignant Pleural Mesothelioma in Patients With Intact Lungs. Clin Lung Cancer 2018; 20:e29-e38. [PMID: 30253920 DOI: 10.1016/j.cllc.2018.08.019] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 08/21/2018] [Accepted: 08/29/2018] [Indexed: 12/11/2022]
Abstract
INTRODUCTION The objective of this study was to present the outcomes of moderately hypofractionated helical intensity-modulated radiation therapy (HT) with/without simultaneous integrated boost (SIB) on fluorodeoxyglucose-positron emission tomography (FDG-PET) positive areas (gross tumor volume [GTV]-PET) for patients with progressive malignant pleural mesothelioma (MPM) after previous treatments. METHODS AND MATERIALS From May 2006 to April 2014, 51 patients with a median age of 68.8 years (range, 38.6-82 years) were treated. There were 41 men and 10 women; 43 epithelioid MPM and 8 sarcomatoid, involving the left pleura in 25 patients and the right pleura in 26 patients. The initial stage was: I, 11 patients; II, 14 patients; III, 17 patients; and IV, 9 patients. Chemotherapy was prescribed for 46 patients, for 6 cycles (range, 0-18 cycles). Eighteen patients had pleurectomy/decortication, and 33 had talc pleurodesis. FDG-PET was used for target identification. A median dose of 56 Gy/25 fractions was prescribed to the involved pleura, and SIB to 62.5 Gy to GTV-PET was added in 38 patients. RESULTS The median survival from diagnosis was 25.8 months (range, 8.4-99.0 months). One patient, treated with SIB, was alive at the October 2017 follow-up. Two cases of grade 5 radiation pneumonitis were registered. A GTV-PET ≤ 205 cc was predictive of late ≥ grade 2 lung toxicity, but also of better survival in stage III and IV disease: 5.9 versus 11.7 months (P = .04). A GTV-PET ≥ 473 cc was predictive of early death (P = .001). CONCLUSIONS Moderately hypofractionated, FDG-PET guided salvage HT in patients with progressive MPM after previous treatments showed acceptable toxicity and outcome results similar to adjuvant radiotherapy after pleurectomy/decortication, suggesting that the delay of radiotherapy is not detrimental to survival, and has the associated benefit of postponing inherent toxicity.
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Affiliation(s)
- Andrei Fodor
- Department of Radiotherapy, San Raffaele Scientific Institute, Milan, Italy.
| | - Sara Broggi
- Department of Medical Physics, San Raffaele Scientific Institute, Milan, Italy
| | - Elena Incerti
- Department of Nuclear Medicine, San Raffaele Scientific Institute, Milan, Italy
| | - Italo Dell'Oca
- Department of Radiotherapy, San Raffaele Scientific Institute, Milan, Italy
| | - Claudio Fiorino
- Department of Medical Physics, San Raffaele Scientific Institute, Milan, Italy
| | | | - Marcella Pasetti
- Department of Radiotherapy, San Raffaele Scientific Institute, Milan, Italy
| | - Mauro G Cattaneo
- Department of Medical Physics, San Raffaele Scientific Institute, Milan, Italy
| | - Paolo Passoni
- Department of Radiotherapy, San Raffaele Scientific Institute, Milan, Italy
| | - Luigi Gianolli
- Department of Nuclear Medicine, San Raffaele Scientific Institute, Milan, Italy
| | - Riccardo Calandrino
- Department of Medical Physics, San Raffaele Scientific Institute, Milan, Italy
| | - Maria Picchio
- Department of Nuclear Medicine, San Raffaele Scientific Institute, Milan, Italy; Faculty of Medicine and Surgery, Vita-Salute San Raffaele University, Milan, Italy
| | - Nadia Di Muzio
- Department of Radiotherapy, San Raffaele Scientific Institute, Milan, Italy
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7
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Badiyan SN, Molitoris JK, Zhu M, Glass E, Diwanji T, Simone CB. Proton beam therapy for malignant pleural mesothelioma. Transl Lung Cancer Res 2018; 7:189-198. [PMID: 29876318 DOI: 10.21037/tlcr.2018.04.07] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Malignant pleural mesothelioma (MPM) is a rare disease with a poor prognosis. Surgical techniques have made incremental improvements over the last few decades while new systemic therapies, including immunotherapies, show promise as potentially effective novel therapies. Radiation therapy has historically been used only in the palliative setting or as adjuvant therapy after extrapleural pneumonectomy, but recent advances in treatment planning and delivery techniques utilizing intensity-modulated radiation therapy and more recently pencil-beam scanning (PBS) proton therapy, have enabled the delivery of radiation therapy as neoadjuvant or adjuvant therapy after an extended pleurectomy and decortication or as definitive therapy for patients with recurrent or unresectable disease. In particular, PBS proton therapy has the potential to deliver high doses of irradiation to the entire effected pleura while significantly reducing doses to nearby organs at risk. This article describes the evolution of radiation therapy for MPM and details how whole-pleural PBS proton therapy is delivered to patients at the Maryland Proton Treatment Center.
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Affiliation(s)
| | | | - Mingyao Zhu
- University of Maryland School of Medicine, Baltimore, MD, USA
| | - Erica Glass
- University of Maryland School of Medicine, Baltimore, MD, USA
| | - Tejan Diwanji
- University of Maryland School of Medicine, Baltimore, MD, USA
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