Treatment Outcome in Locally Advanced Rectal Carcinoma and Its Correlation with Hypo-Fractionated Radiotherapy and Concurrent Chemoradiotherapy

• Published in: Journal of pioneering medical sciences 2024-04, Vol.13 (2), p.115-120
• Main Authors: Sharmin, Dr. Sadia, Mollah, Dr. Nazir Uddin
• Format: Article
• Language: English
• ISSN: 2309-7981; 2309-7981
• DOI: 10.61091/jpms202413216

Introduction: Rectal cancer is the second most common type within the large intestine, posing significant health risks globally. In Bangladesh, it ranks high among diagnosed cancers. Improved diagnostic methods aid in early detection, which is crucial for effective management. Treatment typically involves a combination of surgery, radiotherapy, and chemotherapy. Preoperative chemoradiotherapy is a standard approach. However, newer methods like preoperative hypo-fractionated radiotherapy with surgery promise better outcomes, including reduced recurrence rates and enhanced survival, with potential cost and time savings. Aim of the Study: The study aims to evaluate and contrast the efficacy of hypofractionated radiotherapy and concurrent chemoradiotherapy in patients with locally advanced rectal carcinoma. Methods: The study, conducted at the Department of Clinical Oncology at Bangabandhu Sheikh Mujib Medical University Shahbagh, Dhaka, Bangladesh and the Department of Radiation Oncology at the National Institute of Cancer Research and Hospital (NICR&H) in Mohakhali, Dhaka, Bangladesh, aimed to compare treatments for locally advanced rectal cancer over 1.5 years (From January 2018 to June 2019). A total of 80 patients were divided into two groups; Group A received hypofractionated radiotherapy, while Group B received oral capecitabine alongside external beam radiotherapy. Inclusion criteria involved confirmed adenocarcinoma within specified stages, with ethical clearances obtained. Patients underwent evaluations before treatment and response assessments posttreatment. Treatment modalities were defined, focusing on radiotherapy and chemotherapy. Data were analyzed using SPSS software, employing various statistical tests. Results aimed to address study objectives while minimizing biases. Result: The study involved 80 patients, divided into Groups A and B, each with 40 individuals. Group A mainly comprised individuals aged 41-50 (45%), followed by 31-40 (25%). Group B had the highest proportion aged 31-40 (30%) and 41-50 (32.50%). Both groups showed male predominance (1.3:1). Moderately differentiated tumors were common, with Group A having more poorly differentiated tumors. Stage III was predominant pre-treatment (65% Group A, 70% Group B). Most patients presented with per rectal bleeding (80%) and alteration of bowel habits (56.25%). Response rates to treatment were similar between groups. Tumor downsizing was more frequent in Group B. Sphincter-sparing surger