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Chemotherapy or chemotherapy followed by consolidation chemoradiation in postoperative (simple cholecystectomy) gall bladder cancer with residual disease, unsuitable for revision surgery? Risk stratification and outcomes


1 Department of Radiotherapy, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
2 Department of Surgical Gastroenterology, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India

Correspondence Address:
Md Nawed Alam,
Department of Radiotherapy, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow - 226 014, Uttar Pradesh
India
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jcrt.jcrt_1161_21

Background: Revision surgery (RS) is the standard of care for gallbladder cancer (GBC) after simple cholecystectomy (SC). Often these patients are unsuitable for RS due to late referral or unresectable disease. Do such patients benefit with chemotherapy (CT) alone or dual-modality (CT followed by consolidation chemoradiotherapy [CTRT])? In the absence of any guidelines, we reviewed our data with CT or CTRT to inform us regarding adequate therapy. Materials and Methods: Patients of GBC post-SC referred to us (January 2008 to December 2016) were risk-stratified into three categories based on a diagnostic CT scan: No residual disease (NRD), limited volume residual disease (LR1: Residual/recurrent disease in GB bed with or without N1 nodal station involvement), advanced residual disease (LR2: Residual/recurrent disease involving GB bed with N2 nodal station involvement) and treated with CT or CT followed by CTRT. Response to therapy (RECIST), overall survival (OS), and adverse prognostic factors affecting OS were evaluated. Results: Out of 176 patients, 87were nonmetastatic (NRD = 17, LR1 = 33 and LR 2 = 37). 31 received CT, 49 CTRT and 8 defaulted. At a median follow up of 21 months, the median OS with CT versus consolidation CTRT was not reached in NRD (P = 0.57), 19 months versus 27 months in LR1 (P = 0.003) and 14 months versus 18 months in LR 2 (P = 0.29), respectively. On univariate analysis, residual disease burden, type of treatment (CT vs. CTRT), N stage, and response to treatment were found statistically significant. Conclusion: Our data suggest that CT followed by CTRT improves outcomes in patients with limited volume disease.


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    -  Alam MN
    -  Agrawal S
    -  Rastogi N
    -  Saxena R
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