eISSN: 2081-2841
ISSN: 1689-832X
Journal of Contemporary Brachytherapy
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4/2021
vol. 13
 
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abstract:
Original paper

Clinical outcomes of distal vaginal and vulvar cancer treated with image-guided brachytherapy

Alexander Yaney
1
,
Erin Healy
1
,
Xueliang Pan
2
,
Douglas Martin
1
,
Allison Quick
1

1.
Department of Radiation Oncology, The Ohio State University Wexner Medical Center, Columbus, OH, USA
2.
Department of Biomedical Informatics, The Ohio State University Wexner Medical Center, Columbus, OH, USA
J Contemp Brachytherapy 2021; 13, 4: 419–425
Online publish date: 2021/08/24
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Introduction
To evaluate treatment outcomes with image-guided brachytherapy (IGBT) for distal vaginal and vulvar cancers.

Material and methods
Women treated for distal vaginal or vulvar malignancies utilizing IGBT were retrospectively reviewed, and acute and late toxicities were retrospectively graded. Descriptive statistical analysis was performed.

Results
Eighteen patients were included, out of which, twelve patients (66.7%) were with primary disease of the distal vagina and vulva, most commonly squamous cell carcinoma of the vulva (n = 8, 66.7%), and six with recurrent disease, most commonly recurrent endometrial carcinoma (n = 5, 83.3%). All patients received external beam radiation (EBRT) to a median dose of 45 Gy in 25 fractions, followed by IGBT (range of 15 to 27.5 Gy in 3 to 5 fractions). Mean follow-up was 20.6 months. Mean dose to high-risk clinical target volume (HR-CTV) D90 was 72.4 Gy. Mean D2cc for the rectum, bladder, and urethra were 50 Gy, 50.6 Gy, and 62.9 Gy, respectively. Five patients (27.8%) recurred. Three patients (16.7%) had local recurrence, 1 patient (5.6%) had distant recurrence only, and 1 patient (5.6%) had simultaneous regional and distant recurrence. Grade 3 acute toxicities included 1 (5.6%) vaginal stenosis, 6 (33.3%) dermatitis/mucositis, 2 (11.1%) vaginal pain, and 1 (5.6%) vaginal/vulvar infection. Grade 3 late toxicities comprised 3 (17.7%) cases of vaginal pain and 1 (5.9%) skin/vaginal necrosis. There were no grade 4 or higher toxicities.

Conclusions
Definitive radiation therapy in the form of EBRT and IGBT provides meaningful loco-regional control in women with distal vaginal and vulvar cancers, with mainly skin and vaginal toxicity.

keywords:

distal vaginal cancer, vulvar cancer, brachytherapy, image-guided, toxicity

 
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