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6. Salvage stereotactic body radiotherapy (SBRT) for intraprostatic relapse after prostate cancer radiotherapy: An ESTRO ACROP Delphi consensus

Author

Jereczek-Fossa, B, Marvaso, G, Zaffaroni, M, Gugliandolo, S, Zerini, D, Corso, F, Gandini, S, Alongi, F, Bossi, A, Cornford, P, De Bari, B, Fonteyne, V, Hoskin, P, Pieters, B, Tree, A, Arcangeli, S, Fuller, D, Franzese, C, Hannoun-Levi, J, Janoray, G, Kerkmeijer, L, Kwok, Y, Livi, L, Loi, M, Miralbell, R, Pasquier, D, Pinkawa, M, Scher, N, Scorsetti, M, Shelan, M, Toledano, A, van As, N, Vavassori, A, Zilli, T, Pepa, M, Ost, P, Jereczek-Fossa B. A., Marvaso G., Zaffaroni M., Gugliandolo S. G., Zerini D., Corso F., Gandini S., Alongi F., Bossi A., Cornford P., De Bari B., Fonteyne V., Hoskin P., Pieters B. R., Tree A. C., Arcangeli S., Fuller D. B., Franzese C., Hannoun-Levi J. -M., Janoray G., Kerkmeijer L., Kwok Y., Livi L., Loi M., Miralbell R., Pasquier D., Pinkawa M., Scher N., Scorsetti M., Shelan M., Toledano A., van As N., Vavassori A., Zilli T., Pepa M., Ost P., Jereczek-Fossa, B, Marvaso, G, Zaffaroni, M, Gugliandolo, S, Zerini, D, Corso, F, Gandini, S, Alongi, F, Bossi, A, Cornford, P, De Bari, B, Fonteyne, V, Hoskin, P, Pieters, B, Tree, A, Arcangeli, S, Fuller, D, Franzese, C, Hannoun-Levi, J, Janoray, G, Kerkmeijer, L, Kwok, Y, Livi, L, Loi, M, Miralbell, R, Pasquier, D, Pinkawa, M, Scher, N, Scorsetti, M, Shelan, M, Toledano, A, van As, N, Vavassori, A, Zilli, T, Pepa, M, Ost, P, Jereczek-Fossa B. A., Marvaso G., Zaffaroni M., Gugliandolo S. G., Zerini D., Corso F., Gandini S., Alongi F., Bossi A., Cornford P., De Bari B., Fonteyne V., Hoskin P., Pieters B. R., Tree A. C., Arcangeli S., Fuller D. B., Franzese C., Hannoun-Levi J. -M., Janoray G., Kerkmeijer L., Kwok Y., Livi L., Loi M., Miralbell R., Pasquier D., Pinkawa M., Scher N., Scorsetti M., Shelan M., Toledano A., van As N., Vavassori A., Zilli T., Pepa M., and Ost P.

Abstract

Background and purpose: Between 30% and 47% of patients treated with definitive radiotherapy (RT) for prostate cancer are at risk of intraprostatic recurrence during follow-up. Re-irradiation with stereotactic body RT (SBRT) is emerging as a feasible and safe therapeutic option. However, no consensus or guidelines exist on this topic. The purpose of this ESTRO ACROP project is to investigate expert opinion on salvage SBRT for intraprostatic relapse after RT. Materials and Methods: A 40-item questionnaire on salvage SBRT was prepared by an internal committee and reviewed by a panel of leading radiation oncologists plus a urologist expert in prostate cancer. Following the procedure of a Delphi consensus, 3 rounds of questionnaires were sent to selected experts on prostate re-irradiation. Results: Among the 33 contacted experts, 18 (54.5%) agreed to participate. At the end of the final round, participants were able to find consensus on 14 out of 40 questions (35% overall) and major agreement on 13 questions (32.5% overall). Specifically, the consensus was reached regarding some selection criteria (no age limit, ECOG 0–1, satisfactory urinary flow), diagnostic procedures (exclusion of metastatic disease, SBRT target defined on the MRI) and therapeutic approach (no need for concomitant ADT, consideration of the first RT dose, validity of Phoenix criteria for salvage SBRT failure). Conclusion: While awaiting the results of ongoing studies, our ESTRO ACROP Delphi consensus may serve as a practical guidance for salvage SBRT. Future research should address the existing disagreements on this promising approach.

Published
2021

22. Light emitting diodes for the improvement of postharvest quality of wild rocket in soilless and soil-bound cultivation systems.

Author

Loi M, De Leonardis S, Mulè G, Serio F, Bottiglione B, Paciolla C, and Villani A

Abstract

Wild rocket ( Diplotaxis tenuifolia (L.) DC cv. Dallas) is a leafy green vegetable appreciated for its pungent taste and healthy properties, often consumed as a ready-to-eat product. The cultivation system is crucial in determining the overall quality, while postharvest storage is fundamental for preserving nutritional quality, phytochemicals, and vitamins. This study aimed to investigate the phytochemical content and microbiological quality of soilless (SS) and soil-bound (SB) wild rocket during cold postharvest storage under blue, red, and green Light Emitting Diode (LED). Blue LED increased chlorophylls and carotenoids in SB after two days of storage, and chlorophyll a in SS after seven days. Furthermore, it reduced H 2 O 2 levels after two days (SS and SB) and lipid peroxidation in SB. Red LED increased phenols in both SS and SB but was detrimental to chlorophyll, carotenoids, and oxidative markers. Green LED had less significant effects. Microbiological growth varied with LED treatment: green light increased mesophilic bacteria in SB, and red light did so in SS by day four, while blue light reduced bacterial growth at the end of storage. Overall, Blue LED was the most effective LED in preserving postharvest quality. Soilless cultivation was particularly beneficial in reducing lipid peroxidation and maintaining cell membrane integrity during long-term storage, and it might also be more effective in preserving ascorbic acid. Conversely, soil-bound cultivation methods could enhance initial polyphenol content or better preserve it during early storage. This study highlights the complex interplay of pre-harvest conditions, postharvest quality, and shelf-life performance., Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (© 2024 The Author(s).)

Published
2024
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