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Stereotactic body radiotherapy with CyberKnife for cardiac malignancies

Abstract

Aims and Background

Radiobiological and technical considerations have traditionally limited the role of radiation therapy in the context of primary and secondary cardiac malignancies. Stereotactic body radiotherapy (SBRT) is a promising modality for the delivery of focused high-dose radiation with ablative potential to complex targets such as small, deep-seated, moving lesions, allowing also for re-irradiation.

Methods

Between January 2013 and October 2013, 3 patients underwent SBRT for cardiac lesions: 2 patients had recurrent, previously irradiated cardiac angiosarcomas (PCA) and 1 patient had a cardiac metastasis from melanoma. They were treated with fiducial-guided robotic radiotherapy with CyberKnife. As for dose prescription, 24 Gy in 3 fractions (80% isodose) and 30 Gy in 5 fractions (80% isodose) were administered to the recurrent PCAs and cardiac metastasis, respectively.

Results

At 2 months after SBRT, cardiac MRI showed a partial response in the patients treated for recurrent PCA while the cardiac metastasis remained stable. In all cases, absence of local progression was subsequently confirmed by contrast-enhanced cardiac MRI after 6 months, without any evidence of treatment-related side effects.

Conclusions

Fiducial-guided SBRT proved to be feasible and effective in preventing local disease progression in selected patients with cardiac malignancies.

Tumori 2015; 101(3): 294 - 297

Article Type: ORIGINAL RESEARCH ARTICLE

DOI:10.5301/tj.5000280

Authors

Pierluigi Bonomo, Samantha Cipressi, Isacco Desideri, Laura Masi, Raffaela Doro, Carmine Iermano, Daniela Greto, Gabriele Simontacchi, Monica Mangoni, Fabiola Paiar, Icro Meattini, Silvia Scoccianti, Gennaro Santoro, Serafina Valente, Gian Franco Gensini, Lorenzo Livi

Article History

Disclosures

Financial support: None.
Conflict of interest: None.

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Authors

Affiliations

  • Radiation Oncology, Azienda Ospedaliero Universitaria Careggi, University of Florence, Florence - Italy
  • CyberKnife Center, Istituto Fiorentino di Cura ed Assistenza (IFCA), University of Florence, Florence - Italy
  • Intensive Cardiac Coronary Unit, Heart and Vessel Department, Azienda Ospedaliero Universitaria Careggi, University of Florence, Florence - Italy

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