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Scharl, S.* ; Hugo, C.* ; Weidenbaecher, C.* ; Bronger, H.* ; Brambs, C.* ; Kiechle, M.* ; Makowski, M.R.* ; Combs, S.E. ; Schuettrumpf, L.*

Intracavitary brachytherapy with additional Heyman capsules in the treatment of cervical cancer.

Arch Gynecol Obstet 307, 557-564 (2023)
Publ. Version/Full Text Research data DOI PMC
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PURPOSE: Brachytherapy is a mandatory component of primary radiochemotherapy in cervical cancer. The dose can be applied with a traditional intracavitary approach (IC alone) or with multiple catheter brachytherapy to optimize dose distribution in an individual concept. We therefore evaluated whether the utilization of a tandem-ring applicator plus additional intracavitary applicators (add IC) provides an advantage over the traditional IC alone approach, as this method is less time consuming and less invasive compared to a combined intracavitary/interstitial brachytherapy. METHODS: Twenty three procedures of intracavitary brachytherapy for cervical cancer with additional intracavitary applicators performed in seven patients treated between 2016 and 2018 in our institution were included in this study. Plans were optimized for D90 HR-CTV with and without the utilization of the additional applicators and compared by statistical analysis. RESULTS: D90 for HR-CTV was 5.71 Gy (±1.17 Gy) for fractions optimized with add IC approach and 5.29 Gy (±1.24 Gy) for fractions without additional applicators (p < 0.01). This translates to a calculated mean EQD2 HR-CTV D90 of 80.72 Gy (±8.34 Gy) compared to 77.84 Gy (±8.49 Gy) after external beam therapy and four fractions of brachytherapy for add IC and IC alone, respectively (p < 0.01). The predictive value of improved coverage of HR-CTV in the first fraction was high. CONCLUSION: In a subgroup of cases, the addition of intracavitary Heyman capsules can be an alternative to interstitial brachytherapy to improve the plan quality compared to standard IC alone brachytherapy. The benefit from the addition of applicators in the first fraction is predictive for the following fractions.
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Publication type Article: Journal article
Document type Scientific Article
Keywords Cervical Cancer ; Brachytherapy ; Heyman Capsules ; Tandem-ring Applicator
Language english
Publication Year 2023
Prepublished in Year 2022
HGF-reported in Year 2022
ISSN (print) / ISBN 0932-0067
Quellenangaben Volume: 307, Issue: 2, Pages: 557-564 Article Number: , Supplement: ,
Publisher Springer
POF-Topic(s) 30203 - Molecular Targets and Therapies
Research field(s) Radiation Sciences
PSP Element(s) G-501300-001
PubMed ID 35639163
Erfassungsdatum 2022-07-06