Analysis of the last data shows that there is a steady rise in colorectal morbidity not only in Russian Federation, but also in other developed countries. In rectal cancer treatment there are no standarts by the moment. Last years all over the world there are tendencies to use multicomponent complex modalities of treatment wich include not only surgery, but also radiation therapy and chemotherapy.
Recurrent cancer is considered as radioresistent, and local treatment with high doses of radiation is frequently limited by normal tissues’ tolerance and by dose received in previous course. Reirradiation is always a risk because of cumulative radiation dose to organs at risk and normal tissues. Highly precise techniques of radiation therapy, such as IMRT, brachytherapy, IORT, stereotactic radiation therapy can be used in reccurent cancer treatment because of toxicity decrease and sparing of normal tissues.
Some data shows that usage of modern technologies is effective when using CyberKnife. Stereotactic radiation theapy (SBRT) is a variant of aggressive treatment which is able to provide good local control with minimal toxicity. Innovative approach in reirradiation for patients with recurrent cancer is proton therapy and carbon ion therapy. Dose distribution in proton therapy with its practically no exit dose clears the way to new abilities in reirradiation, leads to dose decrease in tissues outside irradiated volume, and it’s very important in patients who got virtually maximal dose while treating initial disease.
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ISSN 2587-6813 (Online)