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Practice of Tumor Bed Boost in Patients after Oncoplastic Breast-Conserving Surgery

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Abstract

The practice of boost to the tumor bed after treatment with oncoplastic breast-conserving surgery (BCS) remains variable. Using a survey, the present study evaluated the current practice of tumor bed boost administered in women after oncoplastic BCS. Actively practicing radiation oncologists across India were sent a questionnaire on the practice of adjuvant whole-breast radiotherapy and tumor bed boost after oncoplastic BCS via email and encouraged to participate. Of the 54 radiation oncologists who participated, most (98.1%) used a linear accelerator for radiotherapy. Hypofractionation was preferred by 59.26%, standard fractionation by 7.41%, and the remaining selected the fractionation strategy based on various patient factors. In addition, 83.33% participants reported that they always planned tumor boost, 51.85% preferred photons for the boost, and 75.93% administered sequential boost. The most common dose for the boost was 12.5 Gy in five fractions (40.74%). Most participants (77.78%) revealed that they used a combination of methods for identifying the tumor bed. With respect to clip placement, most surgeons (96%) at the participants’ centers placed ≥ 4 clips at the tumor site, with both the base and margins being preferred by surgeons (81.48%) for placement. Finally, 12.96% participants revealed that the surgeons always involved them during surgical planning, whereas 7.4% participants reported that they always included the surgeons during radiotherapy planning, suggesting that radiation oncologists and oncoplastic surgeons do not involve each other during surgical and radiotherapy planning, possibly leading to suboptimal treatment. This may be attributed to the absence of guidelines regarding boost practices after oncoplastic BCS.

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Authors and Affiliations

  1. Nanavati Max Institute of Cancer Care, Nanavati Max Super Speciality Hospital, Mumbai, 400056, India

    Kaustav Talapatra, Garvit Chitkara, Sridevi Murali-Nanavati, Ajinkya Gupte, Nikhil S. Bardeskar, Shruti Behal, Muzammil Shaikh & Pooja Atluri

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Talapatra, K., Chitkara, G., Murali-Nanavati, S. et al. Practice of Tumor Bed Boost in Patients after Oncoplastic Breast-Conserving Surgery. Indian J Surg Oncol 15, 63–70 (2024). https://doi.org/10.1007/s13193-023-01824-7

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