Robotic stereotactic body radiation therapy for elderly medically inoperable early-stage non-small cell lung cancer

Sana D Karam,1 Zachary D Horne,1 Robert L Hong,1,2 Nimrah Baig,1 Gregory J Gagnon,4 Don McRae,2 David Duhamel,3 Nadim M Nasr1,21Department of Radiation Oncology, Georgetown University Hospital, Washington, DC, USA; 2Department of Radiation Oncology, Virginia Hospital Center, Arlington, VA, USA; 3Dep...

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Autores principales: Karam SD, Horne ZD, Hong RL, Baig N, Gagnon GJ, McRae D, Duhamel D, Nasr NM
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Publicado: Dove Medical Press 2013
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spelling oai:doaj.org-article:53d60dfa4ec64e9782818ab45f72b8eb2021-12-02T02:35:27ZRobotic stereotactic body radiation therapy for elderly medically inoperable early-stage non-small cell lung cancer1179-2728https://doaj.org/article/53d60dfa4ec64e9782818ab45f72b8eb2013-08-01T00:00:00Zhttp://www.dovepress.com/robotic-stereotactic-body-radiation-therapy-for-elderly-medically-inop-a13942https://doaj.org/toc/1179-2728Sana D Karam,1 Zachary D Horne,1 Robert L Hong,1,2 Nimrah Baig,1 Gregory J Gagnon,4 Don McRae,2 David Duhamel,3 Nadim M Nasr1,21Department of Radiation Oncology, Georgetown University Hospital, Washington, DC, USA; 2Department of Radiation Oncology, Virginia Hospital Center, Arlington, VA, USA; 3Department of Pulmonary/Critical Care Medicine, Virginia Hospital Center, Arlington, VA, USA; 4Department of Radiation Oncology, Frederick Memorial Hospital, Frederick, MD, USAIntroduction: Stereotactic body radiation therapy (SBRT) is being increasingly applied in the treatment of non-small cell lung cancer (NSCLC) because of its high local efficacy. This study aims to examine survival outcomes in elderly patients with inoperable stage I NSCLC treated with SBRT.Methods: A total of 31 patients with single lesions treated with fractionated SBRT from 2008 to 2011 were retrospectively analyzed. A median prescribed dose of 48 Gy was delivered to the prescription isodose line, over a median of four treatments. The median biologically effective dose (BED) was 105.6 (range 37.50&ndash;180), and the median age was 73 (65&ndash;90 years). No patient received concurrent chemotherapy.Results: With a median follow up of 13 months (range, 4&ndash;40 months), the actuarial median overall survival (OS) and progression-free survival (PFS) were 32 months, and 19 months, respectively. The actuarial median local control (LC) time was not reached. The survival outcomes at median follow up of 13 months were 80%, 68%, and 70% for LC, PFS, and OS, respectively. Univariate analysis revealed a BED of >100 Gy was associated with improved LC rates (P = 0.02), while squamous cell histology predicted for worse LC outcome at median follow up time of 13 months (P = 0.04). Increased tumor volume was a worse prognostic indicator of both LC and OS outcomes (P < 0.05). Finally, female gender was a better prognostic factor for OS than male gender (P = 0.006). There were no prognostic indicators of PFS that reached statistical significance. No acute or subacute high-grade toxicities were documented.Conclusion: SBRT is a safe, feasible, and effective treatment option for elderly patients with inoperable early stage NSCLC. BED, histology, and tumor size are predictors of local control, while tumor size and gender predict OS.Keywords: SABR, CyberKnife, BED, gender, histologyKaram SDHorne ZDHong RLBaig NGagnon GJMcRae DDuhamel DNasr NMDove Medical PressarticleNeoplasms. Tumors. Oncology. Including cancer and carcinogensRC254-282ENLung Cancer: Targets and Therapy, Vol 2013, Iss default, Pp 35-42 (2013)
institution DOAJ
collection DOAJ
language EN
topic Neoplasms. Tumors. Oncology. Including cancer and carcinogens
RC254-282
spellingShingle Neoplasms. Tumors. Oncology. Including cancer and carcinogens
RC254-282
Karam SD
Horne ZD
Hong RL
Baig N
Gagnon GJ
McRae D
Duhamel D
Nasr NM
Robotic stereotactic body radiation therapy for elderly medically inoperable early-stage non-small cell lung cancer
description Sana D Karam,1 Zachary D Horne,1 Robert L Hong,1,2 Nimrah Baig,1 Gregory J Gagnon,4 Don McRae,2 David Duhamel,3 Nadim M Nasr1,21Department of Radiation Oncology, Georgetown University Hospital, Washington, DC, USA; 2Department of Radiation Oncology, Virginia Hospital Center, Arlington, VA, USA; 3Department of Pulmonary/Critical Care Medicine, Virginia Hospital Center, Arlington, VA, USA; 4Department of Radiation Oncology, Frederick Memorial Hospital, Frederick, MD, USAIntroduction: Stereotactic body radiation therapy (SBRT) is being increasingly applied in the treatment of non-small cell lung cancer (NSCLC) because of its high local efficacy. This study aims to examine survival outcomes in elderly patients with inoperable stage I NSCLC treated with SBRT.Methods: A total of 31 patients with single lesions treated with fractionated SBRT from 2008 to 2011 were retrospectively analyzed. A median prescribed dose of 48 Gy was delivered to the prescription isodose line, over a median of four treatments. The median biologically effective dose (BED) was 105.6 (range 37.50&ndash;180), and the median age was 73 (65&ndash;90 years). No patient received concurrent chemotherapy.Results: With a median follow up of 13 months (range, 4&ndash;40 months), the actuarial median overall survival (OS) and progression-free survival (PFS) were 32 months, and 19 months, respectively. The actuarial median local control (LC) time was not reached. The survival outcomes at median follow up of 13 months were 80%, 68%, and 70% for LC, PFS, and OS, respectively. Univariate analysis revealed a BED of >100 Gy was associated with improved LC rates (P = 0.02), while squamous cell histology predicted for worse LC outcome at median follow up time of 13 months (P = 0.04). Increased tumor volume was a worse prognostic indicator of both LC and OS outcomes (P < 0.05). Finally, female gender was a better prognostic factor for OS than male gender (P = 0.006). There were no prognostic indicators of PFS that reached statistical significance. No acute or subacute high-grade toxicities were documented.Conclusion: SBRT is a safe, feasible, and effective treatment option for elderly patients with inoperable early stage NSCLC. BED, histology, and tumor size are predictors of local control, while tumor size and gender predict OS.Keywords: SABR, CyberKnife, BED, gender, histology
format article
author Karam SD
Horne ZD
Hong RL
Baig N
Gagnon GJ
McRae D
Duhamel D
Nasr NM
author_facet Karam SD
Horne ZD
Hong RL
Baig N
Gagnon GJ
McRae D
Duhamel D
Nasr NM
author_sort Karam SD
title Robotic stereotactic body radiation therapy for elderly medically inoperable early-stage non-small cell lung cancer
title_short Robotic stereotactic body radiation therapy for elderly medically inoperable early-stage non-small cell lung cancer
title_full Robotic stereotactic body radiation therapy for elderly medically inoperable early-stage non-small cell lung cancer
title_fullStr Robotic stereotactic body radiation therapy for elderly medically inoperable early-stage non-small cell lung cancer
title_full_unstemmed Robotic stereotactic body radiation therapy for elderly medically inoperable early-stage non-small cell lung cancer
title_sort robotic stereotactic body radiation therapy for elderly medically inoperable early-stage non-small cell lung cancer
publisher Dove Medical Press
publishDate 2013
url https://doaj.org/article/53d60dfa4ec64e9782818ab45f72b8eb
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