Уважаемый Игорь. Повторяю еще раз. На сегодняшний день нет достоверных доказательств того, что радиотерапия останавливает или замедляет рост акустических неврином. Это связано в первую очередь с тем, что они без всякой терапии растут очень медленно (а нередко и не меняют размеров годами). Такие исследования в данный момент проводятся. Но на это нужно много лет (чтобы статистически достоверно заметить разницу).
В настоящее время уже вроде бы начал работать линейный ускоритель в Донецке. Вскоре начнет работу линейный ускоритель в НИИ нейрохирургии в Киеве.
Controversies of Stereotactic Radiotherapy
As the body of literature regarding treatment outcomes in both single dose and fractionated stereotactic radiotherapy techniques continues to grow, the general outcomes of patients appear to be comparable between stereotactic radiotherapy and microsurgery. Several real and potentially large confounding factors limit this interpretation, however.
First, the definition of “tumor control” is not clearly or uniformly defined in many studies. Although several studies do explicitly state a limitation in tumor growth and size within a defined period as their definition of tumor control, others describe “no additional treatment needed” or “no salvage surgery required” as their definition of control. Worse still are studies that make no mention whatsoever of their criteria for tumor control. In either case, interpretation of tumor control is difficult and possibly not equivalent to definitions of tumor control published in the microsurgical literature.
Secondly, as stated earlier, when tumor control is actually defined as no growth, this definition in and of itself may be incorrect and misleading. Because of the definite likelihood of stability in tumor size even without treatment (up to 60%), a large number of tumors that are initially irradiated without secondary scans demonstrating definitive growth can be counted as treatment successes but in fact may actually overestimate the true rate of tumor control. These 2 factors significantly limit the degree to which some radiotherapy studies can be interpreted.
Thirdly, surgical salvage following failed irradiation places the patient at significantly greater risk of incomplete tumor resection, prolonged operative times, higher rates of postoperative complications such as facial nerve paralysis, hearing loss (in attempted hearing conservation procedures), and CSF leak, and overall poorer outcomes than in those patients not previously irradiated....
http://emedicine.medscape.com/article/857604-overview
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