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<正>为什么要讨论老年人血液系统恶性肿瘤化疗的强度问题?这是因为:(1)某些血液肿瘤较多发生在老年人,比如多发性骨髓瘤(MM)、慢性淋巴细胞白血病(CLL)、急性髓性白血病(AML)。50%的AML患者年龄60岁,AML患者中位年龄是64岁,CLL初诊时85%的患者55岁,中位年龄为72岁。(2)老年人由于老龄化进程,出现多器官功能和储备功能的减退。老年人身体的一般情况差,除血液病外常有其他器官和系统的多病共存。化疗作为血液恶性肿瘤最常用的治疗方法,临床医生要充分考虑老年人的这一特点,制定化疗方案。(3)老年人骨髓造血干细胞 相似文献
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老年人急性粒细胞性白血病的研究进展 总被引:2,自引:0,他引:2
急性粒细胞性白血病(AML)是一种好发于老年人血液系统恶性肿瘤,患者的平均年龄为63岁。近几年,关于老年人AML治疗的研究颇多,本文就此作一简要综述。老年人AML的治疗疗效临床资料表明,60岁左右AML患者行联合化疗时完全缓解率约60~85%。随着年龄增长,化学治疗缓解比例明显下降,与年轻患者有显著的差异。部分学者认为,老年白血病患者化疗疗效较差的原因并不是老年患者对化疗药物的对抗,是老年患者在诱导缓解治疗时死亡率较高。Glucksberg对>50岁和年轻的急性非淋巴细胞性白血病患者感染发生率进行比较,结果发现二组患者 相似文献
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近十多年来随着医学科学技术的进展和人群平均寿命的延长,发现老年人颅内肿瘤并非罕见,且越来越多,目前对本病的诊治有较多的报道,现将其发病率、组织学分类和部位、临床特征、诊断、治疗和预后综述如下。发病率以往认为60岁以上的老年人颅内肿瘤较少见,但近来大量尸检资料表明老年人颅内肿瘤较年青者更为常见,且有增加趋势。Gcdfrey认为可达5~8%。Cooney等发现35%颅内肿瘤患者年龄超过60岁。Anneger等报告:颅内肿瘤发病串随着年龄的增长而上升,尤其是脑膜瘤。早野报道老年人脑瘤发病率近年来不断上升,早期报道占脑瘤总数的0.8%,1972年升至13.2%。 相似文献
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<正>急性髓系白血病(AML)是一组异质性恶性血液病,其主要特点为白血病细胞的生长失控及分化受阻[1]。AML好发于老年人,发病年龄主要为65~70岁。随着年龄的增长,AML的发生可能与不良的细胞遗传学异常,体能状态(PS)下降及伴发其他疾病相关。老年AML患者的预后不佳,可能是由于伴有不良的染色体核型异常,对化疗药物产生抵抗或耐药。虽然40%~60%的老年AML患者在接受强烈化疗的情况下可达完全缓解(CR)[2-3],但总体生存期仍为4~6月[4-6]。在传统治疗观点上,老年AML患者一般采用阿糖胞苷(AraC)及蒽环类的标准诱导方案,或小剂量Ara-C的低强度诱导方案,或 相似文献
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直至目前为止对老年人急性骨髓细胞白血病(AML)的治疗问题还研究的不够。本文报告作者用标准的《7+3》和疗程相同而剂量减少的《7+3》两种化疗方案对老年人AML进行治疗的研究结果。从1989年9月~1991年9月共有20例老年AML患者入院,男女各10例,年龄60~80岁(平均65岁)。除1例因在有计划地进行化疗前已经 相似文献
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A total 89 fish and lamprey species has been recorded from Polish freshwater habitats. Twenty-seven of them (30.3%) have not been surveyed for parasitic helminthes. Some of the latter fishes are either rare or not easily accessible. Other live only in specific habitats in scattered localities. An important obstacle for studying parasite faunas of some fishes may be their status on an endangered species. Among the non-surveyed fishes, are those which have been relatively recently introduced to Poland or migrated there on their own. The present paper attempts to review all hitherto not studied helminthologically fish species, their habitats, localities and current protection status. 相似文献
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Results of repair of tetralogy of Fallot 总被引:5,自引:0,他引:5
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高血压降压治疗目标的再认识 总被引:1,自引:0,他引:1
华琦 《中华老年心脑血管病杂志》2007,9(12):793-795
根据传统的高血压水平的定义,1993年WHO高血压治疗指南提出血压控制目标为<140/90mm Hg(1mm Hg=0.133kPa),但是并非所有患者都必须将血压降至同一水平,而应根据患者情况进行个体化治疗。Framingham进行的一项长达10~12年的心血管事件研究发现,第5年后,正常上限血压[收缩压(SBP 相似文献
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P. Brar G.Y. Kwon I.I. Egbuna S. Holleran R. Ramakrishnan G. Bhagat P.H.R. Green 《Digestive and liver disease》2007,39(1):26-29
BACKGROUND AND AIM: Both the clinical presentation and the degree of mucosal damage in coeliac disease vary greatly. In view of conflicting information as to whether the mode of presentation correlates with the degree of villous atrophy, we reviewed a large cohort of patients with coeliac disease. PATIENTS AND METHODS: We correlated mode of presentation (classical, diarrhoea predominant or atypical/silent) with histology of duodenal biopsies and examined their trends over time. RESULTS: The cohort consisted of 499 adults, mean age 44.1 years, 68% females. The majority had silent coeliac disease (56%) and total villous atrophy (65%). There was no correlation of mode of presentation with the degree of villous atrophy (p=0.25). Sixty-eight percent of females and 58% of males had a severe villous atrophy (p=0.052). There was a significant trend over time for a greater proportion of patients presenting as atypical/silent coeliac disease and having partial villous atrophy, though the majority still had total villous atrophy. CONCLUSIONS: Among our patients the degree of villous atrophy in duodenal biopsies did not correlate with the mode of presentation, indicating that factors other than the degree of villous atrophy must account for diarrhoea in coeliac disease. 相似文献