Intraoperative electron beam radiation therapy for locally recurrent rectal carcinoma. 1999

G H Mannaerts, and H Martijn, and M A Crommelin, and G N Stultiëns, and W Dries, and O J van Driel, and H J Rutten
Department of Surgery, Catharina Hospital, Eindhoven, The Netherlands.

OBJECTIVE Treatment results for locally recurrent rectal cancers are poor. This is a result of the fact that surgery is hampered due to the severance of the anatomical planes during the primary procedure and that radiotherapy is limited by normal tissue tolerance, especially after previous irradiation. This paper describes the results of a combined treatment modality in this patient group. METHODS From 1994 to 1998, 37 patients with locally recurrent rectal cancer, but without distant metastatic disease, received a combined treatment consisting of 50.4 Gy preoperative irradiation or, in case of previous radiotherapy, 30 Gy reirradiation or no irradiation, followed by radical surgery and intraoperative electron beam radiotherapy boost. RESULTS Fifteen patients received a radical resection (R0), eight a microscopic irradical resection (R1), and 14 a macroscopic irradical resection (R2). The overall 3-year local control (LC), disease-free survival (DFS), and overall survival rates were 60%, 32%, and 58% respectively. Radicality of resection (R0/R1 vs. R2) turned out to be the significant factor for improved survival (p < 0.05), DFS (p = 0.0008), and LC (p = 0.01). Preoperative (re-)irradiation is the other significant factor in survival (p = 0.005) and DFS (p = 0.001) and was almost significant for LC (p = 0.08). After external beam radiation therapy (EBRT) a significantly higher resection rate was obtained (R0/R1 vs. R2 p = 0.001). Symptomatic peripheral local recurrences have a significantly worse prognosis and higher rate of R2-resection (p = 0.0005). CONCLUSIONS Centralization of locally recurrent rectal cancer patients enabled the development of an aggressive multimodality treatment, which in turn led to promising results. Distant failure is still a drawback.

UI MeSH Term Description Entries
D007432 Intraoperative Period The period during a surgical operation. Intraoperative Periods,Period, Intraoperative,Periods, Intraoperative
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D009364 Neoplasm Recurrence, Local The local recurrence of a neoplasm following treatment. It arises from microscopic cells of the original neoplasm that have escaped therapeutic intervention and later become clinically visible at the original site. Local Neoplasm Recurrence,Local Neoplasm Recurrences,Locoregional Neoplasm Recurrence,Neoplasm Recurrence, Locoregional,Neoplasm Recurrences, Local,Recurrence, Local Neoplasm,Recurrence, Locoregional Neoplasm,Recurrences, Local Neoplasm,Locoregional Neoplasm Recurrences,Neoplasm Recurrences, Locoregional,Recurrences, Locoregional Neoplasm
D011183 Postoperative Complications Pathologic processes that affect patients after a surgical procedure. They may or may not be related to the disease for which the surgery was done, and they may or may not be direct results of the surgery. Complication, Postoperative,Complications, Postoperative,Postoperative Complication
D011879 Radiotherapy Dosage The total amount of radiation absorbed by tissues as a result of radiotherapy. Dosage, Radiotherapy,Dosages, Radiotherapy,Radiotherapy Dosages
D012004 Rectal Neoplasms Tumors or cancer of the RECTUM. Cancer of Rectum,Rectal Cancer,Rectal Tumors,Cancer of the Rectum,Neoplasms, Rectal,Rectum Cancer,Rectum Neoplasms,Cancer, Rectal,Cancer, Rectum,Neoplasm, Rectal,Neoplasm, Rectum,Rectal Cancers,Rectal Neoplasm,Rectal Tumor,Rectum Cancers,Rectum Neoplasm,Tumor, Rectal
D012086 Reoperation A repeat operation for the same condition in the same patient due to disease progression or recurrence, or as followup to failed previous surgery. Revision, Joint,Revision, Surgical,Surgery, Repeat,Surgical Revision,Repeat Surgery,Revision Surgery,Joint Revision,Revision Surgeries,Surgery, Revision
D003131 Combined Modality Therapy The treatment of a disease or condition by several different means simultaneously or sequentially. Chemoimmunotherapy, RADIOIMMUNOTHERAPY, chemoradiotherapy, cryochemotherapy, and SALVAGE THERAPY are seen most frequently, but their combinations with each other and surgery are also used. Multimodal Treatment,Therapy, Combined Modality,Combined Modality Therapies,Modality Therapies, Combined,Modality Therapy, Combined,Multimodal Treatments,Therapies, Combined Modality,Treatment, Multimodal,Treatments, Multimodal
D004583 Electrons Stable elementary particles having the smallest known negative charge, present in all elements; also called negatrons. Positively charged electrons are called positrons. The numbers, energies and arrangement of electrons around atomic nuclei determine the chemical identities of elements. Beams of electrons are called CATHODE RAYS. Fast Electrons,Negatrons,Positrons,Electron,Electron, Fast,Electrons, Fast,Fast Electron,Negatron,Positron

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