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ORIGINAL ARTICLE
Year : 2021  |  Volume : 17  |  Issue : 1  |  Page : 174-179

Endoscopic and clinical correlation with dose to sigmoid colon in carcinoma cervix patients treated with radical radiotherapy


1 Department of Medical Oncology, Sri Aurobindo Institute of Medical Sciences, Indore, Madhya Pradesh, India
2 Department of Radiation Oncology, Ramaiah Medical College and Hospital, Bengaluru, Karnataka, India

Correspondence Address:
T R Arulponni
Department of Radiation Oncology, Ramaiah Medical College and Hospital, Bengaluru, Karnataka
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/jcrt.JCRT_817_19

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Context: Sigmoid colon, due to its close proximity to central tandem in intracavitary brachytherapy (BT), is at risk of receiving high dose, the clinical significance of which is not documented. Aim: This study was designed to assess the dose received by sigmoid colon following radical treatment and to correlate clinically with the sigmoid mucosal changes seen on sigmoidoscopy. Settings and Design: This is a prospective study. Subjects and Methods: Thirty histologically proven carcinoma cervix patients treated with radical radiotherapy were accrued. A baseline sigmoidoscopy was done and repeated at 6 months following completion of BT. The dose–volume parameters (DVP) were used to calculate the dose received by the sigmoid colon and correlate with symptoms along with the sigmoid mucosal changes. Statistics: The following were the statistical methods used: frequency; percentages; and descriptive statistics such as mean ± standard deviation, Chi-square test, Kolmogorov–Smirnov test, and independent sample t-test. P < 0.05 was considered statistically significant. Results: The dose of the sigmoid colon in patients with a sigmoidoscopy score of ≥2 was significantly high compared to that of patients with a score of <2 for DVP such as D0.1cc, D1cc, D2cc, D5cc, and mean dose, whereas max dose was not significantly high. Conclusions: The dose received by the sigmoid colon is directly proportional to the mucosal changes and hence possibly a higher morbidity. Tighter dose–volume constraints, better optimization techniques, and close follow-up sigmoidoscopy will help in the prevention and early treatment of long-term morbidity.


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