甘氨双唑钠配合三维适形放疗治疗老年肺癌的近期疗效观察

目的 探讨甘氨双唑钠对老年人肺癌三维立体适形放射治疗(3D-CRT)的放射增敏作用和安全性.方法 经病理证实的老年肺癌病人27例,均采用甘氨双唑钠增敏并配合三维立体适形放射治疗技术进行治疗.甘氨双唑钠剂量为800mg/m2,用100ml生理盐水稀释溶解,于30min内滴注完,3h内完成放疗;3D-CRT采用6MeV直线加速器,单次剂量5.0～6.0Gy,3次/周,总剂量40～42Gy/3～4周,应用剂量体积直方图(DVH)评估治疗计划,确保周围正常组织及敏感组织的受量在许可范围内.结果 CR 17例(63%),PR 10例(37%),CR PR达到100%,未见明显的毒副反应.结论 甘氨双唑钠具有明显的放射增敏作用,配合3D-CRT治疗老年人肺癌可取得较好的临床疗效.

Observations on short-term therapeutic effects of glycididazole combined with three-dimensional conformal radiotherapy for elderly patients with lung cancer

Objective To explore the role of glycididazole(CMNa) in enhancing radiosensitivity to three-dimensional conformal radiotherapy(3D-CRT) and its safety in elderly patients with lung cancer.Methods Twenty-seven elderly patients with lung cancer,which had been confirmed by pathological examination,were treated with radiosensitizer glycididazole(CMNa) and 3D-CRT.Diluted with 100ml saline solution,800mg/m2 glycididazole(CMNa) was intravenously injected within 30 minutes,and 3D-CRT was performed within 3 hours.3D-CRT was composed of 6MeV liner accelerator at a dose of 5.0-6.0 Gy/fraction for 3 fractions/week with a total dosage of 40-42Gy/3-4weeks.Treatment plan was evaluated by dose volume histogram(DVH) to ensure peripheral normal tissue and sensitive tissue to receive the dose within a permitted extent.Results Seventeen cases(63%) showed complete responses(CR),and 10 cases(37%) showed partial responses(PR),theretore the total response rate was 100%(27/27).No patients suffered from obvious adverse effects.Conclusions With significant ability to enhance radiosensitivity,glycididazole combined with 3D-CRT afford an effective treatment for elderly patients with lung cancer.