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Survival Outcomes in Patients with Thymoma after Thymectomy in an Indian Scenario

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Abstract

Thymomas are relatively slow growing with late presentation. Because of rarity and underreporting in India, there is an unmet need for evaluating the patient characteristics and assessing the factors affecting survival for standardizing the ideal modality of treatment in Indian population. A retrospective analysis of 96 patients with thymoma was done between 1998 and 2018. Patient characteristics, histopathological characteristics, operative outcomes, local recurrences, and survival outcomes were recorded. Survival analysis was done using Kaplan-Meier method, and statistical data were analyzed using SPSS version 25 (IBM). The incidence of thymoma was relatively high in 6th decade with no sex predilection. Common presenting symptoms were cough and dyspnea. Myasthenia gravis was noted in 30.2%, which resolved after thymectomy in 65.5% of patients. Most patients presented with Masaoka stages I and II, and predominant WHO histological types were B1 and AB. Complete resection was done in 69.8% cases, and local recurrence was noted in 15.6%. Median sternotomy was the most frequently used approach for thymectomy. The 5-year overall survival was 76%, with an excellent 5-year survival of 95% and 86% in stages I and II patients. Masaoka stage, WHO histologic type, completeness of surgery, and local recurrence did affect the survival significantly. Masaoka stages III and IV, histological type B3, incomplete resection during surgery, and presence of local recurrence did independently predict a worse overall survival.

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Authors and Affiliations

  1. Department of Surgical Oncology, Kidwai Memorial Institute of Oncology, Marigowda Road, Bangalore, Karnataka, India

    Anvesh Dharanikota, Ravi Arjunan, Ramachandra Chowdappa & Syed Althaf

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  1. Anvesh Dharanikota
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  2. Ravi Arjunan
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  3. Ramachandra Chowdappa
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  4. Syed Althaf
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Correspondence to Anvesh Dharanikota.

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This research study was conducted retrospectively from data obtained for clinical purposes. We consulted extensively with the IRB of Kidwai Memorial Institute of Oncology, who determined that our study did not need ethical approval.

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Informed consent was obtained from all individual participants included in the study.

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Dharanikota, A., Arjunan, R., Chowdappa, R. et al. Survival Outcomes in Patients with Thymoma after Thymectomy in an Indian Scenario. Indian J Surg Oncol 11, 785–790 (2020). https://doi.org/10.1007/s13193-020-01258-5

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  • DOI: https://doi.org/10.1007/s13193-020-01258-5

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