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find Keyword "放射疗法" 20 results
  • 同期放化疗治疗中晚期鼻咽癌50例疗效观察

    摘要:目的:探讨同期放化疗治疗中晚期鼻咽癌的疗效。方法: 我院2003年6月至2006年10月中晚期鼻咽癌患者95例回顾分析, 两组放射治疗相同, 用6 MV-X线外照射和6~12 MeV电子线, 观察组放疗始PF方案同步化疗。结果:两组治疗结束后3个月观察组鼻咽癌原发病灶疗效有效率高于对照组(Plt;0.05), 颈部淋巴结疗效有效率高于对照组(Plt;0.05), 两组患者不良反应主要为急性黏膜反应、骨髓抑制、胃肠道反应等。观察组的毒副作用发生率明显高于对照组(Plt;0.05)。结论:同期放化疗治疗中晚期(Ⅲ或Ⅳa期)鼻咽癌是目前较为理想的治疗方案, 其毒性反应可以耐受。

    Release date:2016-08-26 03:57 Export PDF Favorites Scan
  • 125I 粒子植入治疗复发、转移性纵隔恶性肿瘤51例

    目的 探讨CT引导125I粒子植入治疗复发及转移性纵隔恶性肿瘤的技术方法和疗效,以提高纵隔肿瘤的局部控制率。 方法 对51例复发及转移性纵隔恶性肿瘤患者在CT引导下行125I粒子植入治疗。前纵隔病变采用胸骨旁入路直接穿刺和经胸骨共轴针法植入粒子,主动脉窗、主动脉弓旁病变采用左前胸骨旁入路,气管上腔静脉间隙之间的病变采用右后经胸壁入路,隆突前病变采用经后胸壁入路或前胸壁入路,隆突下病变采用经右胸壁和脊柱入路。术后采用CT检查随访,以观察患者临床指标改善情况。 结果 围手术期无手术死亡和严重并发症发生,其中有41例患者一次成功植入125I 粒子,粒子分布满意;7例术后3 d在CT引导下成功植入125I 粒子;3例125 I 粒子植入失败。术后发生痰中带血6例,少量胸腔内出血3例,CT检查发现有少量气胸 7例, 经观察未做进一步处理自愈。完成125I 粒子植入的48例患者,术后1个月复查CT,完全缓解(CR)26例,部分缓解(PR)14例,无变化(AC)5例,出现新的病灶(PD)3例,总有效率83.33%(40/48)。随访51例,随访时间12~60个月,中位随访期26个月。1年局部控制率为93.75% (45/48)。 结论 在CT引导下采用不同穿刺方法植入放射性 125I 粒子治疗纵隔复发、转移性恶性肿瘤,安全、微创,并发症发生率低,疗效肯定。

    Release date:2016-08-30 05:59 Export PDF Favorites Scan
  • 碘-125粒子支架植入治疗晚期食管癌

    目的 探讨附有放射碘125(125I)粒子的机织式支架植入治疗晚期食管癌的效果, 总结临床经验,以期为晚期食管癌患者的合理治疗提供临床依据。 方法 37例晚期食管癌患者应用附有125I粒子的机织式支架植入治疗,术中、术后观察随访支架植入成功率及并发症的发生率, 比较术前与术后3个月食管病变长度和白细胞计数的变化。 结果 37例患者手术过程顺利,支架植入成功率均为100%,仅3例患者胸部有明显疼痛不适感,经对症处理后缓解;随访6个月,随访33例,失访2例,死亡1例,因年龄偏大,体质较弱死亡。术后3个月,吞咽困难缓解率为100%,治疗后较治疗前食管病变长度明显缩小(Plt;0.05),而白细胞计数的变化差异无统计学意义 (Pgt;0.05)。 结论 附有125I粒子的机织式支架能明显改善吞咽困难症状,还可对肿瘤进行组织间放疗, 明显改善患者术后的生存质量。

    Release date:2016-08-30 06:05 Export PDF Favorites Scan
  • Macular morphological changes of choroidal melanoma with optical coherence tomography after plaque radiotherapy

    Objective To observe the macular morphological changes of choroidal melanoma with coherence tomography (OCT) after plaque radiotherapy (PRT). Methods A total of 48 patients (48 eyes) with choroidal melanoma who underwent125I PRT were enrolled in this study. All the patients were examined documenting OCT to get the image of macula. The macula of all the patients was not involved. The median visual acuity was 0.4plusmn;0.2, which ranged from 0.02 to 1.0. There were 18 eyes (37.5%) with retinal detachment, 12 eyes (25.0%) with retinal pigment epithelium (RPE) changes, seven eyes (14.6%) with macular edema, epimacular membrane, detachment combined with edema, exudation and RPE changes, 11 eyes (22.9%) with normal macular structure. The median follow-up time was (10.4plusmn;5.9) months, which ranged from one to 24 months. The tumor control situation and visual acuity were observed in follow-up period. The same equipment and methods of OCT were used to return visit in follow-up period. The macular morphological changes at the final visit and its relationship with PRT and visual acuity were contrastively analyzed. Results All the patients had good control of tumor. The vision acuity improved in two eyes (4.2%), unchanged in 10 eyes (20.8%), and decreased in 36 eyes (75.0%). The differences of the visual acuity was statistically significant between before and after treatment (Z=-3.778,P<0.05). There were 13 eyes (27.1%) with retinal detachment; nine eyes (18.8%) with RPE changes; 17 eyes (35.4%) with macular edema, detachment combined with edema, exudation and RPE changes; six eyes (12.5%) with proliferation, atrophy, detachment combined with edema, exudation and epimacular membrane;three eyes (6.3%) with normal macular structure. There were 15 patients (31.3%) with two or more abnormal macular morphology after PRT. Conclusions Retinal detachment, RPE changes, macular edema and exudation are common abnormal macular morphology after PRT. The incidence rate of abnormal macular morphology is increased. There are 31.3% patients with two or more abnormal macular morphology.

    Release date:2016-09-02 05:26 Export PDF Favorites Scan
  • 放射性视神经病变研究进展

      放射性视神经病变(RON)是因邻近视路的头颈部放射治疗(放疗)而引起的迟发性进行性视神经并发症。临床表现以突发的、无痛性单眼或双眼视力进行性下降为主要特征。视路接受的照射剂量及照射范围是发生RON的关键因素。增强的核磁共振成像(MRI)检查以及电生理检测具有一定的辅助诊断意义;结合其临床表现、相应辅助检查及头颈部放疗史可作出诊断。虽然高压氧治疗能在发病早期一定程度上改善RON的视力损害,但目前仍然缺乏行之有效的治疗方法。因此,在制定头颈部放疗计划时应充分考虑视神经、视交叉是否在照射范围内,并注意控制照射剂量,以防止RON的发生。

    Release date:2016-09-02 05:37 Export PDF Favorites Scan
  • Treating choroidal melanoma by plaque radiotherapy combined with transpupillary thermotherapy

      Objective To observe the therapeutic efficacy and complications of plaque radiotherapy (PRT) combined with transpupillary thermotherapy (TTT) on choroidal melanoma (CM). Methods Thirty unilateral CM patients (30 eyes, including 15 males and 15 females) were treated by PRT and TTT. The visual acuity ranged from 0.1 to 0.8 with an average of 0.3plusmn;0.2. The largest base diameter of tumor ranged from 6.8 mm to 17.9 mm with an average of (11.3plusmn;2.8) mm;The tumor height ranged from 3.9 mm to 10.6 mm with an average of (7.2plusmn;2.4) mm. The criteria of controlled local tumor: based on B-scan ultrasound measurement, the tumor was considered as ldquo;growingrdquo; if tumor height increased 2 mm or tumor largest base diameter increased 250 mu;m, otherwise the tumor was considered ldquo;controlledrdquo;. The followup ranged from 15 to 57 months with an average (33.01plusmn;9.81) months. The local tumor control rate, enucleation rate and visual acuity, complications after treatment were observed.Results The tumor largest base diameter after treatment ranged from 4.6 mm to 17.0 mm with an average (9.79plusmn;3.35) mm, which had statistically significant difference(t=2.195,F=0.49;P=0.032) with that before treatment. The tumor height after treatment ranged from 2.7 mm to 11.9 mm with an average (5.19plusmn;2.57) mm, which had statistically significant difference(t=2.069,F=0.018;P=0.0435) with that before treatment. At the end of follow up, the tumor largest diameter and height increased in two eyes respectively compared with those before treatment. Local tumor control rate was 86.7%. Three eyeballs were enucleated after treatment,the enucleation rate was 10.0%. The visual acuity remained unchanged in 12 eyes,improved in one eye and decreased in 17 eyes. Treatment complications included radiation retinopathy in 12 eyes (40.0%), secondary retinal detachment in three eyes (10.0%), secondary glaucoma in one eye (3.3%), cataract in four eyes (13.3%) and dry eye syndrome in five eyes (16.7%). Conclusion PRT combined with TTT is an effective therapy for choroidal melanoma with less complications.

    Release date:2016-09-02 05:37 Export PDF Favorites Scan
  • Therapeutic effect of chemotherapy combined with ophthalmic therapy on retinobl astoma

    Objective:To observe the therapeutic effi cacy of chemotherapy combin ed with ophthalmic therapy on retinoblastoma (RB). Methods:The survival rate, eye ball remaining rate, and the control of the disease condition of 37 patients (56 eyes) with RB were retrospectively analyzed. The standard of the well contr ol of the disease included: (1) the ocular tumor shrank or even disappeared, and the tumor had creamlike changes or calcification and cicatrisation; (2) no oc u lar tumor recurrence in patients who had undergone enucleation; (3) no metastasi s found in the followup period. All of the patients had at least one eye with RB (ge;Ⅲb stage) underwent c hemotherapy. According to the response of the tumor to the chemotherapy, the pat ients generally underwent 6 times of systemic chemotherapy at regular intervals of 3-4 weeks. The medicines for chemotherapy included vincristine, cyclohosphamide , etoposide phosphate, and carboplatin. According to the self condition, the pati ents underwent chemotherapy combined with several ophthalmic therapies like phot ocoagulation, cryotherapy, transpupillary thermotherapy, 106Ru brachytherapy, en ucleation, etc. The observation duration lasted 2-59 months, with the average o f 35 months. Results:Thirty patients (83.3%) survived and were followed up, and 6 died (16.6%). One patient with bilateral tumor couldn't be followed up afte renucleation of both eyes. Among these 30 patients (45 eyes), eye ball remainin g rate at stage I-Ⅱ, Ⅲ-Ⅳ, and Ⅴ was 100% (10 eyes), 70% (10 eyes), and 14 .3% (21 eyes), respectively. In the followup duration, the disease in all of the 3 0 patients was controlled well. Conclusions:Chemotherapy combi ned with ophthalmic therapy is effective on RB.

    Release date:2016-09-02 05:48 Export PDF Favorites Scan
  • Priliminary observation on choroidal melanoma treated by plaque radiotherapy

    Objective To observe the therapeutic effect of plaque radiotherapy (PRT) on choroidal melanoma. Methods PRT was performed on 21 patients (21 eyes) with chroidal melanoma who had been examined by ophthalmoscopy, fundus fluorescein angiography (FFA), indocyanine green angiography (ICGA), and B-scan echography. The visual acuity was le;0.05 in 3 eyes, 0.06-0.2 in 4 eyes, and ge;0.3 in 14 eyes before the treatment. Choroidal melanoma, round or oval brown solid hunch, was located at the area around macula in 7 eyes, around the optic disc in 7 eyes, at or near the vascular arcade in 5 cases, and at the periphery in 2 eyes. The maximum length、width and thickness of tumor was 13 mm, 11.6 mm, and 9.59 mm. The isotope we used was125I, and the quantum of designed radiation was 100-120 Gy. Fourteen patients with choroidal melanoma at the macular area or around the optic disc underwent plaque radiotherapy associated with transpupillary thermotherapy (TTT). The average follow-up duration was 12 months with the longest duration of 3 years. The basis and thickness (height) of tumors were measured by B-scan echography. The aggrandizement of the tumor would be regarded if the height increased 15% or the basis boundary aggrandized 250mm. Results The visual acuity after the treatment decreased in 9 eyes, remained unchanged in 10, and increased in 2. The dimension of tumo increased in 6 eyes, remained unchanged in 12, and decreased in 3. The complication was vitreous hemorrhage in 2 eys, vascular occlusion in 1, branch retinal venous occlusion in 1, macular pucker in 1, retinal hemorrhage in 3, partial optic atrophy in 3, neovascular glaucoma in 1, and extraction of eye in 3. Conclusion The domestic plaque design is effective on choroidal melanoma, and is of a sort on the thick tumor and the tumor located at macula or beside the optic disc. (Chin J Ocul Fundus Dis, 2006, 22: 157-160)

    Release date:2016-09-02 05:51 Export PDF Favorites Scan
  • Therapeutic effects of eye-retaining treatment for choroidal melanoma

    Objective To evaluate the therapeutic effects of treatments of eye-retaining and enucleation for choroidal melanomas. Methods The clinical data of 44 patients (44 eyes) with choroidal melanomas after eye-retaining treatments and enucleation surgery were retrospectively analyzed. The metastasis, retention rate of eyeball after eye-retaining treatment, and visual acuity prognosis were observed and analyzed. In 44 eyes treated by eye-retaining therapy, transpupillary thermotherapy (TTT) was performed primaryly on 7 (15.9%), 106 Ru brachytherapy on 25 (56.8%), and local resection of tumor combined with 106 Ru brachytherapy on 12 (27.3%).The average follow-up period was 13.3 months. Results Forty-four patients had no melanoma metastasis during the follow-up period. In 39 patients (88.6%) who had their eyes retained successfully, the retention rate of eyeball was 100%, 92.9%, and 83.3% in 6, 14, and 24 eyes with small, middle, and large tumor, respectively. In the patients treated by eye-retaining therapy, the visual acuity was ge;0.3 in 11 (28.2%), ge;0.05-<0.3 in 18 (46.2%), and <0.05 (25.6%) in 10 eyes. Conclusions 106 Ru brachytherapy and transpupillary thermotherapy are effective treatments for small and medium-sized choroidal melanomas; some selected cases with large choroidal melanomas was treated with local resection of tumor combined with106 Rubrachytherapy. However, longer followup will be necessary to assess if this treatment has a better comprehensive outcome, compared with enucleation surgery. (Chin J Ocul Fundus Dis, 2006, 22: 150-153)

    Release date:2016-09-02 05:51 Export PDF Favorites Scan
  • 脉络膜黑色素瘤治疗方案的选择

    脉络膜黑色素瘤是成年人最常见的原发性眼内恶性肿瘤,是致死的最主要原发性眼内疾病。近20来,以美国及加拿大学者为主要成员的眼部黑色素瘤协作组,对该肿瘤的治疗方式的选择进行了大量的临床研究,有许多新的认识。 (中华眼底病杂志, 2006, 22: 214-216)

    Release date:2016-09-02 05:51 Export PDF Favorites Scan
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