Anticancer research · 2020
Selection Criteria and Clinical Outcomes of Patients With Asymmetrical Cervical Cancer Treated With Various High-dose-rate Brachytherapy Techniques.
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Murofushi Keiko Nemoto, Yoshioka Yasuo, Ishikawa Hitoshi, Sumi Minako, Okumura Toshiyuki, Oguchi Masahiko, Sakurai Hideyuki
Аннотация
BACKGROUND/AIM: We aimed to evaluate the efficacy of high-dose-rate brachytherapy techniques selected according to pre-brachytherapy magnetic resonance imaging (MRI) findings in asymmetrical cervical cancer (ACC).
PATIENTS AND METHODS: We analyzed 33 ACC patients. Asymmetric tumors were defined as those in which the difference between the distance from the cervical canal to the farthest end of the tumor [long distance (LD)] and the distance from the cervical canal to the contralateral tumor edge [short distance (SD)] is equal to or greater than 2 cm on the basis of MRI prior to treatment. On pre-treatment and pre-brachytherapy MRI, the median LDs were 40 mm and 21 mm, respectively. Patients with LD≥2 cm and LD - SD≥1 cm on pre-brachytherapy MRI received non-conventional intracavitary brachytherapy (ICBT).
RESULTS: Sixteen patients (48%) received non-conventional ICBT. There was no significant difference in 3-year local control between the two treatment groups (100% vs. 81.2%, p=0.07); two patients had grade 2 radiation proctitis.
CONCLUSION: Brachytherapy techniques selected according to pre-brachytherapy MRI findings were effective for ACC treatment.
PATIENTS AND METHODS: We analyzed 33 ACC patients. Asymmetric tumors were defined as those in which the difference between the distance from the cervical canal to the farthest end of the tumor [long distance (LD)] and the distance from the cervical canal to the contralateral tumor edge [short distance (SD)] is equal to or greater than 2 cm on the basis of MRI prior to treatment. On pre-treatment and pre-brachytherapy MRI, the median LDs were 40 mm and 21 mm, respectively. Patients with LD≥2 cm and LD - SD≥1 cm on pre-brachytherapy MRI received non-conventional intracavitary brachytherapy (ICBT).
RESULTS: Sixteen patients (48%) received non-conventional ICBT. There was no significant difference in 3-year local control between the two treatment groups (100% vs. 81.2%, p=0.07); two patients had grade 2 radiation proctitis.
CONCLUSION: Brachytherapy techniques selected according to pre-brachytherapy MRI findings were effective for ACC treatment.