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  • Title: [Efficacy of different chemotherapy programs, indications for surgery and radiotherapy in primary mediastinal B-cell lymphosarcoma].
    Author: Dzhumabaeva BT, Kremenetskaia AM, Gotman LN, Shavlokhov VS, Kaplanskaia IB, Kravchenko SK, Vishnevskaia ES, Gemdzhian EG, Frank GA.
    Journal: Ter Arkh; 2005; 77(8):78-81. PubMed ID: 16206611.
    Abstract:
    AIM: To evaluate efficacy of treatment of primary mediastinal B-cell lymphosarcoma (PMBLS). MATERIAL AND METHODS: Fifty nine patients with PMBLD were divided into three groups. Group 1 (n = 15) received 8 courses of CHOP, prevention of neuroleukemia and radiotherapy (RT). Group 2 (n = 8)--4 courses of ProMACE-CytaBOM or 1 course of MACOP-B, prevention of neuroleukemia and RT. Group 3 (n = 36)--2 courses of CHOP and 2-3 courses of ESHAP or 3 courses of DexaBEAM, surgical removal of residual mediastinal tumor (RMT), RT. RESULTS: The number of complete remissions in group 1 and 2 was the same (26 and 25%, respectively). Overall 5-year and event-free survivals in groups 1 and 2 were 52 +/- 5 and 13 +/- 5; 62 +/- 5 and 38 +/- 8%, respectively. In group 3 a complete remission was observed in 89% patients (p = 0.01), overall 5-year and event-free survival reached 88 +/- 8 and 85 +/- 7%, respectively. Removal of RMT in time of tumor size stabilization and partial remission (in 12 of 15 cases) led to a complete remission but in progression of the disease (in 3 cases) appeared ineffective. RT resulted in complete remission in 39 of 53 cases, stabilization of tumor growth was in 3 cases, progression--in 10, recurrence--in 1. RT was ineffective in all 4 cases of partial remission. RT use in stabilization of tumor size induced complete remission only in 1 of 7 cases. CONCLUSION: CHOP program is ineffective in PMBLS. Program ProMACE-CytaBOM or MACOP-B is insignificantly more effective than CHOP. Combined therapy is most effective. Surgery is justified in partial remission and tumor growth arrest. RT is indicated in complete remission to achieve its consolidation.
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