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Tri- modality therapy in advanced esophageal carcinoma: long- term results and insights from a developing world, institutional cohort

Chufal, Kundan Singh; Ahmad, Irfan; Bajpai, Ram; Miller, Alexis Andrew; Chowdhary, Rahul Lal; Makker, Jasbir; Batra, Ullas; Nathany, Shrinidhi; Sharief, Muhammed Ismail; Umesh, Preetha; Sharma, Mansi; Amrith, Patel; Pahuja, Anjali Kakria; Sethi, Jaskaran; Antony, Varghese; Gairola, Munish

Authors

Kundan Singh Chufal

Irfan Ahmad

Alexis Andrew Miller

Rahul Lal Chowdhary

Jasbir Makker

Ullas Batra

Shrinidhi Nathany

Muhammed Ismail Sharief

Preetha Umesh

Mansi Sharma

Patel Amrith

Anjali Kakria Pahuja

Jaskaran Sethi

Varghese Antony

Munish Gairola



Abstract

Objective: To evaluate treatment outcomes in patients from a low-middle income country (LMIC) with esophageal carcinoma who underwent esophagectomy after neoadjuvant chemoradiation (NACRT/S). Methods: Between 2010 and 2020, 254 patients (median follow-up: 53 months) met our inclusion criteria. Out-of-field nodal regions were determined by reviewing individual radiotherapy plans. Cox regression modelling was performed to analyze overall survival (OS) and recurrence-free survival (RFS), while pathological complete response (pCR) prediction utilized Poisson regression. Results: The median OS was 71.4 months (interquartile range: 19.6–∞), RFS did not reach the median and pCR rate was 46%. On multivariable Cox regression, BMI [0.93 (0.89–0.98); 0.94 (0.89–0.99)] and absence of out-of-field node with extranodal extension (ENE)[0.22 (0.09–0.53); 0.30 (0.12–0.75)] influenced OS and RFS, respectively. Age [1.03 (1.01–1.06)], nodal stage [cN2-3 vs cN0: 2.67 (1.08–6.57)] and adventitial involvement [2.54 (1.36–4.72)] also influenced OS, while involved margins [3.12 (1.24–7.81)] influenced RFS. On multivariable Poisson regression, non-CROSS-chemotherapy regimens [0.65 (0.44–0.95)] and residual primary disease on pre-surgical imaging [0.73 (0.57–0.93)] were significantly associated with pCR. The most frequently involved in-field and out-of-field nodal regions were the periesophageal and perigastric (greater and lesser curvature) regions, respectively. Conclusion: NACRT/S is feasible and effective in patients from LMIC. Out-of-field ENE merits further investigation as a prognostic factor since it significantly influenced both OS and RFS. Advances in knowledge: The results of clinical trials are replicable in LMICs. Out-of-field ENE is an independent prognostic factor for OS and RFS.

Journal Article Type Article
Acceptance Date Dec 8, 2022
Online Publication Date Jan 12, 2023
Publication Date Mar 1, 2023
Publicly Available Date Mar 29, 2024
Journal The British Journal of Radiology
Print ISSN 0007-1285
Publisher British Institute of Radiology
Volume 96
Issue 1143
Article Number ARTN 20220413
DOI https://doi.org/10.1259/bjr.20220413
Keywords Radiology, Nuclear Medicine and imaging, General Medicine
Publisher URL https://www.birpublications.org/doi/epub/10.1259/bjr.20220413