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| http://dx.doi.org/10.1016/j.radonc.2024.110587 | DOI Listing |
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Technical report on the first clinical use of a bioabsorbable PGA spacer in HDR brachytherapy for recurrent cervical cancer.
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In recurrent gynecologic malignancies following prior pelvic irradiation, definitive radiation therapy is often precluded by cumulative dose constraints to adjacent organs at risk (OARs), and patients may be left with only highly invasive surgical options such as total pelvic exenteration. While some institutions have explored displacement techniques such as artificial ascites or hyaluronic acid gel injection, these approaches are not widely adopted and frequently fail to ensure consistent and stable separation of OARs. We report the first clinical use of Neskeep®, a bioabsorbable polyglycolic acid (PGA) spacer, in high-dose-rate (HDR) brachytherapy for recurrent cervical cancer after prior pelvic radiation.
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Centre Médical IBN Khaldoun, Radiotherapy Unit, Hammam Sousse, 4011, Republic of Tunisia.
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Reirradiation dose constraints in clinical practice: Results of an international survey.
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IntroductionTo investigate the efficacy of a knowledge-based planning (KBP) model in optimizing dose distribution, and identify the inter-institutional variation in radiotherapy of recurrent nasopharyngeal carcinoma (rNPC).MethodsA total of 70 rNPC patients treated with intensity-modulated radiotherapy (IMRT) were recruited to build a KBP model. Following model refinement, 36 patients were retrospectively enrolled for dosimetric comparison between manually optimized and KBP-generated plans.
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Reirradiation (reRT), defined as administering a course of radiation therapy to a specific area previously irradiated, is an evolving treatment strategy for locoregionally recurrent cancer that offers significant potential and poses inherent challenges. Advances in such techniques as intensity-modulated and stereotactic body radiation therapy have improved precision, making reRT a viable option for complex scenarios previously deemed high-risk. Nevertheless, reRT remains associated with substantial risks-including life-threatening side effects, functional impairments, and psychosocial effects-which must be carefully balanced against the patient's overall health and the likelihood of achieving cancer control or palliation.
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