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Kishi N, Matsuo Y, Yoneyama M, Ueki K, Mizowaki T. Symptomatic radiation pneumonitis after stereotactic body radiotherapy for multiple pulmonary oligometastases or synchronous primary lung cancer. Adv Radiat Oncol 2022; 7:100911. [PMID: 35647407 PMCID: PMC9133396 DOI: 10.1016/j.adro.2022.100911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 01/18/2022] [Indexed: 11/28/2022] Open
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Gregoire J. Guiding Principles in the Management of Synchronous and Metachronous Primary Non-Small Cell Lung Cancer. Thorac Surg Clin 2021; 31:237-254. [PMID: 34304832 DOI: 10.1016/j.thorsurg.2021.05.001] [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: 11/20/2022]
Abstract
Multiple lung cancers can be found simultaneously, with incidence ranging from 1% to 8%. Documentation of more than 1 pulmonary lesion can be challenging, because these solid, ground-glass, or mixed-density tumors may represent multicentric malignant disease or intrapulmonary metastases. If mediastinal nodal and distant deposits are excluded, surgery should be contemplated. After surgical treatment of lung cancer, patients should be followed closely for an undetermined period of time. Good clinical judgment is of outmost importance in deciding which individuals will benefit from those surgical interventions and which are candidates for alternate therapies. Every case should be discussed in a multidisciplinary meeting.
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Affiliation(s)
- Jocelyn Gregoire
- Institut Universitaire de Cardiologie et de Pneumologie de Québec, 2725 Chemin Sainte-Foy, Quebec, Quebec G1V 4G5, Canada.
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Berg J, Ramberg C, Haugstvedt JOS, Bengtson MB, Gabrielsen AM, Brustugun OT, Halvorsen AR, Helland Å. Lung Function After Stereotactic Body Radiation Therapy for Early-Stage Non-Small Cell Lung Cancer, Changes and Predictive Markers. Front Oncol 2021; 11:674731. [PMID: 34109123 PMCID: PMC8181743 DOI: 10.3389/fonc.2021.674731] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 04/30/2021] [Indexed: 12/25/2022] Open
Abstract
Introduction The present study explores changes in pulmonary function, symptoms and radiological signs of pneumonitis after curatively intended stereotactic body radiation therapy (SBRT). Methods All inoperable, early-stage non-small cell lung cancer patients treated with stereotactic body radiation therapy (SBRT) from 2014-2017 were included in this single-centre study. They were followed regularly for 12 months after treatment. The patients were classified into three groups based on radiology and symptomatology: no radiation pneumonitis, asymptomatic and symptomatic radiation pneumonitis. Results Forty-four patients with stage IA-IIB disease were treated with 45–56 Gy in 3–8 fractions. The median age was 75 years, 43% of the patients were female; 60% of the patients had a COPD in GOLD grade of 2-4, and 95.5% were active or former smokers. Symptomatic radiation pneumonitis occurred in 18% of the patients and asymptomatic pneumonitis as defined by radiology, in 39%. The mean of forced expiratory volume in 1 second (FEV1) and diffusion capacity for carbon monoxide (DLCO) decreases for all patients during the first years were higher than one would expect from physiologic ageing. FEV1 and DLCO in percent decrease 7-8% at 1-1.5 months in the symptomatic radiation pneumonitis group. CT scan findings consistent with radiation pneumonitis occurred after a median of 2.9 months in the symptomatic and 5.4 months in the asymptomatic radiation pneumonitis groups. In the group with symptomatic radiation pneumonitis, symptoms, as measured by the Clinical COPD questionnaire score, significantly increased at 3 and 6 months. Significant higher maximum doses to the critical lung volumes DC1000cm3 (1000 cm3 of lung receiving a given dose or less) and DC 1500cm3 (1500 cm3 of lung receiving a given dose or less) were observed in patients who developed radiation pneumonitis. Conclusion Early decrease in measured FEV1 and DLCO occurred before imaging changes and symptoms and might indicate the development of symptomatic radiation pneumonitis. The dose to critical lung volumes of DC1000 cm3 and DC1500 cm3 may predict the risk for the development of symptomatic radiation pneumonitis.
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Affiliation(s)
- Janna Berg
- Department of Medicine, Vestfold Hospital Trust, Tønsberg, Norway.,Department of Cancer Genetics, Institute for Cancer Research, Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway
| | - Christina Ramberg
- Department of Medical Physics, Oslo University Hospital, Oslo, Norway
| | | | | | | | - Odd Terje Brustugun
- Department of Cancer Genetics, Institute for Cancer Research, Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway.,Section of Oncology, Vestre Viken Hospital Trust, Drammen, Norway
| | - Ann Rita Halvorsen
- Department of Oncology, Oslo University Hospital, Oslo, Norway.,Department of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Åslaug Helland
- Department of Cancer Genetics, Institute for Cancer Research, Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway.,Department of Oncology, Oslo University Hospital, Oslo, Norway.,Department of Clinical Medicine, University of Oslo, Oslo, Norway
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Martin-Broto J, Hindi N, Lopez-Pousa A, Peinado-Serrano J, Alvarez R, Alvarez-Gonzalez A, Italiano A, Sargos P, Cruz-Jurado J, Isern-Verdum J, Dolado MC, Rincon-Pérez I, Sanchez-Bustos P, Gutierrez A, Romagosa C, Morosi C, Grignani G, Gatti M, Luna P, Alastuey I, Redondo A, Belinchon B, Martinez-Serra J, Sunyach MP, Coindre JM, Dei Tos AP, Romero J, Gronchi A, Blay JY, Moura DS. Assessment of Safety and Efficacy of Combined Trabectedin and Low-Dose Radiotherapy for Patients With Metastatic Soft-Tissue Sarcomas: A Nonrandomized Phase 1/2 Clinical Trial. JAMA Oncol 2020; 6:535-541. [PMID: 32077895 DOI: 10.1001/jamaoncol.2019.6584] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Importance Active therapeutic combinations, such as trabectedin and radiotherapy, offer potentially higher dimensional response in second-line treatment of advanced soft-tissue sarcomas. Dimensional response can be relevant both for symptom relief and for survival. Objective To assess the combined use of trabectedin and radiotherapy in treating patients with progressing metastatic soft-tissue sarcomas. Design, Setting, and Participants Phase 1 of this nonrandomized clinical trial followed the classic 3 + 3 design, with planned radiotherapy at a fixed dose of 30 Gy (3 Gy/d for 10 days) and infusion of trabectedin at 1.3 mg/m2 as the starting dose, 1.5 mg/m2 as dose level +1, and 1.1 mg/m2 as dose level -1. Phase 2 followed the Simon optimal 2-stage design. Allowing for type I and II errors of 10%, treatment success was defined as an overall response rate of 35%. This study was conducted in 9 sarcoma referral centers in Spain, France, and Italy from April 13, 2015, to November 20, 2018. Adult patients with progressing metastatic soft-tissue sarcoma and having undergone at least 1 previous line of systemic therapy were enrolled. In phase 2, patients fitting inclusion criteria and receiving at least 1 cycle of trabectedin and the radiotherapy regimen constituted the per-protocol population; those receiving at least 1 cycle of trabectedin, the safety population. Interventions Trabectedin was administered every 3 weeks in a 24-hour infusion. Radiotherapy was required to start within 1 hour after completion of the first trabectedin infusion (cycle 1, day 2). Main Outcomes and Measures The dose-limiting toxic effects of trabectedin (phase 1) and the overall response rate (phase 2) with use of trabectedin plus irradiation in metastatic soft-tissue sarcomas. Results Eighteen patients (11 of whom were male) were enrolled in phase 1, and 27 other patients (14 of whom were female) were enrolled in phase 2. The median ages of those enrolled in phases 1 and 2 were 42 (range, 23-74) years and 51 (range, 27-73) years, respectively. In phase 1, dose-limiting toxic effects included grade 4 neutropenia lasting more than 5 days in 1 patient at the starting dose level and a grade 4 alanine aminotransferase level increase in 1 of 6 patients at the +1 dose level. In phase 2, among 25 patients with evaluable data, the overall response rate was 72% (95% CI, 53%-91%) for local assessment and 60% (95% CI, 39%-81%) for central assessment. Conclusions and Relevance The findings of this study suggest that the recommended dose of trabectedin for use in combination with this irradiation regimen is 1.5 mg/m2. The trial met its primary end point, with a high overall response rate that indicates the potential of this combination therapy for achieving substantial tumor shrinkage beyond first-line systemic therapy in patients with metastatic, progressing soft-tissue sarcomas. Trial Registration ClinicalTrials.gov Identifier: NCT02275286.
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Affiliation(s)
- Javier Martin-Broto
- Department of Medical Oncology, University Hospital Virgen del Rocío, Sevilla, Spain.,TERABIS Group, IBiS (Instituto de Biomedicina de Sevilla), Sevilla, Spain
| | - Nadia Hindi
- Department of Medical Oncology, University Hospital Virgen del Rocío, Sevilla, Spain.,TERABIS Group, IBiS (Instituto de Biomedicina de Sevilla), Sevilla, Spain
| | - Antonio Lopez-Pousa
- Department of Medical Oncology, Santa Creu i Sant Pau Hospital, Barcelona, Spain
| | - Javier Peinado-Serrano
- TERABIS Group, IBiS (Instituto de Biomedicina de Sevilla), Sevilla, Spain.,CIBERONC (Centro de Investigación Biomédica en Red de Cáncer), Instituto de Salud Carlos III, Madrid, Spain.,Department of Radiation Oncology, University Hospital Virgen del Rocío, Sevilla, Spain
| | - Rosa Alvarez
- Department of Medical Oncology, Gregorio Marañon University Hospital, Madrid, Spain
| | | | - Antoine Italiano
- Department of Medical Oncology, Institut Bergonié, Bordeaux, France
| | - Paul Sargos
- Department of Radiotherapy, Institut Bergonié, Bordeaux, France
| | - Josefina Cruz-Jurado
- Department of Medical Oncology, University Hospital of the Canary Islands, Tenerife, Spain
| | | | - Maria Carmen Dolado
- Department of Radiation Oncology, University Hospital of the Canary Islands, Tenerife, Spain
| | | | | | - Antonio Gutierrez
- Department of Hematology, University Hospital Son Espases, Mallorca, Spain
| | - Cleofe Romagosa
- Department of Pathology, Vall d'Hebron University Hospital, Barcelona, Spain
| | - Carlo Morosi
- Department of Radiology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Giovanni Grignani
- Division of Medical Oncology, Candiolo Cancer Institute, FPO-IRCCS, Candiolo, Italy
| | - Marco Gatti
- Division of Radiotherapy, Candiolo Cancer Institute, FPO-IRCCS, Candiolo, Italy
| | - Pablo Luna
- Department of Medical Oncology, University Hospital Son Espases, Mallorca, Spain
| | - Ignacio Alastuey
- Radiotherapy Department, University Hospital Son Espases, Mallorca, Spain
| | - Andres Redondo
- Medical Oncology Department, University Hospital La Paz, Madrid, Spain.,Health Research Institute of La Paz Hospital (IdiPAZ), Madrid, Spain
| | - Belen Belinchon
- Department of Radiotherapy, University Hospital La Paz, Madrid, Spain
| | | | | | - Jean-Michel Coindre
- Department of Biopathology, Institut Bergonié, Bordeaux, France.,Department of Biopathology, Bordeaux University, Talence, France
| | - Angelo P Dei Tos
- Department of Medicine, University of Padua School of Medicine, Padua, Italy
| | - Jesus Romero
- Department of Radiation Oncology, University Hospital Puerta de Hierro, Madrid, Spain
| | - Alessandro Gronchi
- Department of Surgery, Fondazione IRCCS, Istituto Nazionale dei Tumori, Milan, Italy
| | - Jean-Yves Blay
- Medical Oncology Department, Centre Léon Bérard, Lyon, France.,Département of Medicine, Université Claude Bernard Lyon I, Lyon, France
| | - David S Moura
- TERABIS Group, IBiS (Instituto de Biomedicina de Sevilla), Sevilla, Spain
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Du L, Ma N, Dai X, Yu W, Huang X, Xu S, Liu F, He Q, Liu Y, Wang Q, Liu X, Zheng H, Qu B. Precise prediction of the radiation pneumonitis in lung cancer: an explorative preliminary mathematical model using genotype information. J Cancer 2020; 11:2329-2338. [PMID: 32127959 PMCID: PMC7052914 DOI: 10.7150/jca.37708] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Accepted: 01/06/2020] [Indexed: 12/25/2022] Open
Abstract
Purpose: Radiation pneumonitis (RP) is the most significant dose-limiting toxicity and is one major obstacle for lung cancer radiotherapy. Grade ≥2 RP usually needs clinical interventions and serve RP could be life threatening. Clinically, tissue response could be strikingly different even two similar patients after identical radiotherapy. Previous methods for the RP prediction can hardly distinguish substantial variations among individuals. Reliable predictive factors or methods emphasizing the individual differences are strongly desired by clinical radiation oncologists. The purpose of this study is to develop an approach for the personalized RP risk prediction. Experimental Design: One hundred eighteen lung cancer patients who received radiotherapy were enrolled. Seven hundred thousand single-nucleotide polymorphism (SNP) sites were assessed via Generalized Linear Models via Lasso and Elastic-Net Regularization (GLMNET) to determine their synergistic effects on the RP risk prediction. Non-genetic factors including patient's phenotypes and clinical interventional parameters were separately assessed by statistic test. Based on the results of the aforementioned analysis, a multiple linear regression model named Radiation Pneumonitis Index (RPI) was built, for the assessment of Grade ≥2RP risk. Results: Only previous surgery and fractional dose were discovered statistical significantly associated with grade ≥2RP. Thirty-nine effective SNPs for predicting the Grade ≥2RP risk were discovered and their coefficients of the synergistic effect were determined. The RPI score can successfully distinguish the RP≥2 population with 92.0% sensitivity and 100% specificity. Conclusions: Individual radiation sensitivity can be determined with genotype information and personalized radiotherapy could be achieved based on mathematical model result.
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Affiliation(s)
- Lehui Du
- Department of Radiation Oncology, Chinese PLA General Hospital, Beijing, 100853, P.R. China
| | - Na Ma
- Department of Radiation Oncology, Chinese PLA General Hospital, Beijing, 100853, P.R. China
| | - Xiangkun Dai
- Department of Radiation Oncology, Chinese PLA General Hospital, Beijing, 100853, P.R. China
| | - Wei Yu
- Department of Radiation Oncology, Chinese PLA General Hospital, Beijing, 100853, P.R. China
| | - Xiang Huang
- Department of Radiation Oncology, Chinese PLA General Hospital, Beijing, 100853, P.R. China
| | - Shouping Xu
- Department of Radiation Oncology, Chinese PLA General Hospital, Beijing, 100853, P.R. China
| | - Fang Liu
- Department of Radiation Oncology, Chinese PLA General Hospital, Beijing, 100853, P.R. China
| | - Qiduo He
- Department of Radiation Oncology, Chinese PLA General Hospital, Beijing, 100853, P.R. China
| | - Yanli Liu
- Department of Radiation Oncology, Chinese PLA General Hospital, Beijing, 100853, P.R. China
| | - Qian Wang
- Tianjia Genomes Tech CO., LTD., Hefei, 238014, P. R. China
| | - Xiangtao Liu
- Tianjia Genomes Tech CO., LTD., Hefei, 238014, P. R. China
| | - Hui Zheng
- Tianjia Genomes Tech CO., LTD., Hefei, 238014, P. R. China
| | - Baolin Qu
- Department of Radiation Oncology, Chinese PLA General Hospital, Beijing, 100853, P.R. China
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Clinical Outcomes After Lung Stereotactic Body Radiation Therapy in Patients With or Without a Prior Lung Resection. Am J Clin Oncol 2019; 41:695-701. [PMID: 27819875 DOI: 10.1097/coc.0000000000000344] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
OBJECTIVES Tumor control (TC), toxicity and survival, following stereotactic body radiation therapy (SBRT) were compared between patients with and without a prior lung resection (PLR). MATERIALS AND METHODS The study is comprised of 130 patients with 141 peripheral tumors treated with SBRT at our institution from 2009 to 2013. Primary TC and lobar control (LC) were defined per RTOG 0236. Toxicity was scored using Common Terminology Criteria for Adverse Events version 4.0. Survival/TC and toxicity were compared between patients with and without PLR using the Kaplan-Meier method and cumulative incidence, respectively. Fine and Gray regression was used for univariable/multivariable analysis for radiation pneumonitis (RP). RESULTS Of the 130 patients with median age 70 years (range, 42 to 93 y), 50 had undergone PLR (median time between PLR and SBRT: 33 mo; range, 1 to 206), including pneumonectomy (12%), lobectomy (46%), wedge resection (42%). With a median follow-up of 21 months in survivors, the PLR group had better TC (1-y 100% vs. 93%; P<0.01) and increased grade ≥2 (RP; 1-y 12% vs. 1%; P<0.01). OS was not significantly different between the 2 groups (1-y 91% vs. 85%; P=0.24). On univariable/multivariable analyses, biologically effective dose was associated with TC (hazard ratios, 0.97; 95% confidence interval, 0.94-0.999; P=0.04). Chemotherapy use was associated with grade ≥2 RP for all patients (hazard ratios, 14.92; 95% confidence interval, 5.68-39.21; P<0.0001) in multivariable analysis. PLR was not associated with increased RP in multivariable analysis. CONCLUSIONS Patients with PLR who receive lung SBRT for lung tumors have high local control and relatively low toxicity. SBRT is an excellent option to treat second lung tumors or pulmonary metastases in patients with PLR.
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Abstract
PURPOSE OF REVIEW Significant advances have been made in the field of stereotactic ablative radiotherapy (SABR) for the treatment of pulmonary neoplasms in recent years. This review aims to summarize recent salient evidence on SABR for early-stage nonsmall cell lung cancer (ES-NSCLC). RECENT FINDINGS In medically inoperable patients, SABR remains the standard of care. The optimal SABR dosing regimen is being studied. Comparisons with non-SABR radiotherapy regimens with lower doses per fraction revealed benefit of SABR. In operable patients, no prospective clinical trial comparing SABR and surgery has been completed, although multiple trials are currently underway to address this question. SABR is generally cost-effective and safe in most patients, with preserved patient-reported quality of life. However, increased toxicity with SABR is noted in patients with disease close to, or invading the proximal tracheobronchial tree. Significant SABR-related toxicity and mortality is also reported in patients with coexisting interstitial lung disease. Considerations on pathologic confirmation, surveillance and multiple primaries are also addressed. SUMMARY SABR is an effective and safe treatment for inoperable ES-NSCLC. Ongoing trials and comparative effectiveness research will help to clarify SABR's role in various lung cancer indications going forward.
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Shinde A, Li R, Kim J, Salgia R, Hurria A, Amini A. Stereotactic body radiation therapy (SBRT) for early-stage lung cancer in the elderly. Semin Oncol 2018; 45:210-219. [PMID: 30286944 DOI: 10.1053/j.seminoncol.2018.06.002] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Revised: 05/08/2018] [Accepted: 06/26/2018] [Indexed: 01/05/2023]
Abstract
Early-stage non-small cell lung cancer (NSCLC) is on the rise due to the implementation of screening guidelines for patients at risk for developing lung cancer. It is anticipated that as the US population continues to age, there will be a higher percentage of medically inoperable early-stage lung cancer patients. For this reason, noninvasive ablative therapies are necessary. Stereotactic body radiation therapy (SBRT) is an effective modality in addressing early-stage NSCLC. SBRT consists of high-dose radiation delivered over 3-5 treatments. Several randomized trials comparing surgery to SBRT in early-stage operable patients have unfortunately closed early due to poor accrual. However, a recent pooled analysis from 2 randomized trials (StereoTActic Radiotherapy and Radiosurgery Or Surgery for operable Early-stage non-small cell Lung cancer) comparing surgery to SBRT did show comparable local control and overall survival rates between surgery and SBRT, offering a very effective, noninvasive modality for older adult patients with early-stage NSCLC. In this review, we summarize the role of SBRT in early-stage NSCLC, in particularly applied to the older adult population.
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Affiliation(s)
- Ashwin Shinde
- Department of Radiation Oncology, City of Hope National Medical Center, Duarte, CA, USA
| | - Richard Li
- Department of Radiation Oncology, City of Hope National Medical Center, Duarte, CA, USA
| | - Jae Kim
- Department of Thoracic Surgery, City of Hope National Medical Center, Duarte, CA, USA
| | - Ravi Salgia
- Department of Medical Oncology, City of Hope National Medical Center, Duarte, CA, USA
| | - Arti Hurria
- Department of Medical Oncology, City of Hope National Medical Center, Duarte, CA, USA
| | - Arya Amini
- Department of Radiation Oncology, City of Hope National Medical Center, Duarte, CA, USA.
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Janssen S, Kaesmann L, Rudat V, Rades D. A scoring system for predicting the survival prognosis of patients receiving stereotactic body radiation therapy (SBRT) for 1-3 lung metastases. Lung 2016; 194:631-5. [PMID: 27263126 DOI: 10.1007/s00408-016-9906-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Accepted: 05/31/2016] [Indexed: 12/28/2022]
Abstract
INTRODUCTION The main goal of the present study was the development of a survival scoring system for patients treated with stereotactic body radiation therapy (SBRT) for very few lung metastases. Such an instrument would be of value when selecting the optimal dose for individual patients with a limited number of pulmonary lesions. METHODS Forty-six patients receiving SBRT for 1-3 lung metastases were retrospectively analyzed. The biologically effective dose plus nine characteristics [gender, age, performance score, interval from tumor diagnosis to SBRT, primary tumor type, additional (extra-pulmonary) metastases, major location of lung metastases, number of pulmonary lesions, and volume treated with SBRT] were evaluated. Characteristics significantly associated with the survival on Cox regression analysis were incorporated in the scoring system. Scoring points were received from 1-year survival rates divided by 10. Sums of these scoring points represented the scores for the individual patients. RESULTS Survival rates at 1 and 2 years were 66 and 56 %, respectively. On Cox regression analysis, performance score (p = 0.025), the type of primary tumor (p = 0.013) and the additional metastases (p = 0.032) had a significant impact on survival. Scores for patients ranged from 15 to 25 points. Three groups were designed: 15 points, 16-20 points, and 21-25 points. One-year survival rates were 0, 52, and 83 %, respectively (p = 0.005); 2-year survival rates were 0, 52, and 66 %, respectively. CONCLUSION A survival scoring system for patients receiving SBRT for very few lung metastases was developed. This score allowed us to estimate the survival prognosis of these patients and can aid physicians when aiming to choose the optimal SBRT dose for individual patients.
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Affiliation(s)
- Stefan Janssen
- Department of Radiation Oncology, University of Lübeck, Ratzeburger Allee 160, 23538, Lübeck, Germany.,Medical Practice for Radiotherapy and Radiation Oncology, Hannover, Germany
| | - Lukas Kaesmann
- Department of Radiation Oncology, University of Lübeck, Ratzeburger Allee 160, 23538, Lübeck, Germany
| | - Volker Rudat
- Department of Radiation Oncology, Saad Specialist Hospital, Al Khobar, Saudi Arabia
| | - Dirk Rades
- Department of Radiation Oncology, University of Lübeck, Ratzeburger Allee 160, 23538, Lübeck, Germany.
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