Brachytherapy for Organ and Function Preservation in Soft-Tissue Sarcomas in Adult and Paediatric Patients

• Published in: Clinical oncology (Royal College of Radiologists (Great Britain)) 2023-08, Vol.35 (8), p.533-540
• Main Authors: Laskar, S., Manjali, J.J., Chargari, C., Chard, J.
• Format: Article
• Language: English
• Subjects: Adjuvant radiotherapy; Brachytherapy; Paediatric sarcomas; Perioperative brachytherapy; Recurrent sarcomas; Soft-tissue sarcoma
• ISSN: 0936-6555; 1433-2981
• DOI: 10.1016/j.clon.2023.06.005

Adjuvant radiotherapy is an integral component in the management of soft-tissue sarcomas. Brachytherapy is a very convenient and conformal way of delivering adjuvant radiotherapy in such tumours, which spares the surrounding normal tissue. Randomised studies have established the efficacy of brachytherapy in the adjuvant setting, with a 5-year local control of 80–85%. High dose rate, low dose rate and pulsed dose rate have shown equivalent local control, but high dose rate has gained popularity owing to patient convenience, radiation safety and flexibility in dose optimisation. Freehand insertion perioperative brachytherapy (intraoperative placement and postoperative treatment) is the most commonly used technique in soft-tissue sarcomas, with intraoperative radiotherapy and radioactive seed placement being the less commonly used techniques. Brachytherapy can be used as monotherapy or in combination with external beam radiotherapy, such as in cases of close/positive margins for safe dose escalation. Although the quantum of side-effects with external beam radiotherapy has considerably reduced with the evolution of technology and the introduction of intensity modulation (intensity-modulated radiotherapy), brachytherapy still scores better in terms of dose conformality, especially in recurrent tumours (previously irradiated) and when used to treat paediatric and geriatric patients. •Brachytherapy allows effective disease control and organ and function preservation for soft tissue sarcomas in adult and paediatric age groups.•Appropriate selection of patient and brachytherapy technique are critical in achieving optimal outcomes.•Brachytherapy is particularly useful in children as it allows reduction in volumes of immature normal tissue irradiated.