A Comparative Analysis of Two Different Dose Fractionation Regimens of High Dose Rate Intracavitary Brachytherapy in Treatment of Carcinoma of Uterine Cervix: A Prospective Randomized StudyCorrespondence Address :
Dr. Bala Venkata Subramanian,
Associate Professor, Department of Radiotherapy, Sri Venkateswara Institute of Medical Sciences, Tirupati, Andhra Pradesh, India.
Introduction: High Dose Rate (HDR) intracavitary brachytherapy is an integral component in treatment of carcinoma uterine cervix. There is no consensus about optimal fractionation in HDR brachytherapy.
Aim: To assess the feasibility, tolerability of HDR intracavitary brachytherapy schedule of 8 Gy per fraction per week for 3 fractions over 6Gy per fraction per week for 4 fractions with or without chemotherapy in the treatment of carcinoma of uterine cervix.
Materials and Methods: From 2013 to 2014 total 80 patients with carcinoma of the uterine cervix (Stages IIB and IIIB) were treated with External Beam Radiotherapy (EBRT) and High Dose Rate Intracavitary Brachytherapy (HDR- ICBT). During course of EBRT, those patients fit for brachytherapy were randomized to arm A- 6 Gy per fraction per week for 4 fractions and arm B - 8 Gy per fraction per week for 3 fractions.
Results: The median follow up was 30 months, local control was 90% in Arm A and 83.3% in Arm B (p= 0.21) and the diseasefree survival was 90% in Arm A and 83.3% in Arm B (p= 0.39). There is no significance difference for late rectal and bladder toxicities between two arms (p=0.43).
Conclusion: Taking into account of increased hospital burden of locally advanced cancer cervix patients in Indian context, HDR intracavitary brachytherapy schedule of 8 Gy per fraction per week x 3 fractions is the preferable option over 6 Gy per fraction per week x 4 fractions with regard to comparable loco-regional control, acute and late toxicity, disease free survival and better patients compliance to lesser fractionation schedule.
External beam radiotherapy, Gynaecological malignancy, Late toxicity
Bonala Sreenivasa Rao, Pranabandhu Das, Bala venkata subramanian,
Amitabh Jena, Patnayak Rashmi, V L Anusha Konakalla, et al.. A COMPARATIVE ANALYSIS OF TWO DIFFERENT DOSE FRACTIONATION REGIMENS OF HIGH DOSE RATE INTRACAVITARY BRACHYTHERAPY IN TREATMENT OF CARCINOMA OF UTERINE CERVIX: A PROSPECTIVE RANDOMIZED STUDY. Journal of Clinical and Diagnostic Research [serial online] 2017 April [cited: 2017 May 24 ]; 11:XC01-XC05. Available from
Date of Submission: Jul 01, 2016
Date of Peer Review: Aug 06, 2016
Date of Acceptance: Jan 10, 2017
Date of Publishing: Apr 01, 2017
Financial OR OTHER COMPETING INTERESTS: None.
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