关于肿瘤生物治疗的思考

肿瘤临床治疗的方法多种多样 ,每一种方法都能给患者带来福音 ,但每一种方法都有其不足之处。手术治疗和放疗有着立竿见影的效果 ,但一旦肿瘤发生远端转移 ,手术治疗将束手无策 ;化疗方案应用最为广泛 ,但大多数化疗药物都是针对肿瘤细胞新陈代谢快的特点设计的 ,必然祸及人体内同样代谢快的组织如肝、肾、血细胞等 ;某些药物能诱导细胞分化 ,正所谓让肿瘤细胞“改邪归正” ,或是触发肿瘤细胞凋亡 ,正所谓让肿瘤细胞“自取灭亡” ,但这类药物的临床应用是十分有限的。近年来 ,被人们十分看好的肿瘤生物治疗方法 ,给肿瘤治疗带来新的希望 ,但…     

现代科学技术革命与肿瘤治疗的发展

通过对肿瘤的手术、放疗、化疗以及生物治疗这四大肿瘤治疗发展史的研究,揭示出现代科学技术革命对肿瘤治疗进展的巨大推动作用,辨证地展现:未来随着新技术的出现,肿瘤的治疗将一定有重大突破。     

现代科学技术革命与肿瘤治疗的发展

通过对肿瘤的手术、放疗、化疗以及生物治疗这四大肿瘤治疗发展史的研究,揭示出现代科学技术革命对肿瘤治疗进展的巨大推动作用,辨证地展现:未来随着新技术的出现,肿瘤的治疗将一定有重大突破.     

应用分子靶向治疗的时机选择

分子靶向药物的出现显示出肿瘤治疗传统模式的重要进展。与传统放疗、化疗相比,分子靶向治疗因其特异性高、不良反应轻微,在恶性肿瘤个体化治疗中扮演重要角色。十五年来,分子靶向药物的出现,给肿瘤的治疗模式带来重大改变,也给临床医生带来新的挑战。准确把握分子靶向药物应用时机,获得最大临床效果,已成为肿瘤治疗领域关注热点。本文就非小细胞肺癌、消化系统肿瘤、乳腺癌、肾癌治疗中分子靶向药物如何选择应用时机进行阐述。     

肿瘤疫苗治疗肿瘤的前景

肿瘤疫苗的发展已经历了一个多世纪,20世纪50年代,人们开始了自体肿瘤疫苗的研究.使肿瘤疫苗(主动性免疫治疗)成为继手术、放疗、化疗之后的肿瘤治疗方法.肿瘤疫苗作为主动特异性免疫治疗,在临床中起到越来越重要的作用,人们开始尝试利用多种方法制备肿瘤疫苗并利用其促进机体免疫应答,从整体细胞,分子水平调控机体对肿瘤的免疫.目前肿瘤疫苗的研制已取得很大进展,给人类战胜肿瘤提供很大希望。     

肿瘤疫苗治疗肿瘤的前景

肿瘤疫苗的发展已经历了一个多世纪,20世纪50年代,人们开始了自体肿瘤疫苗的研究.使肿瘤疫苗(主动性免疫治疗)成为继手术、放疗、化疗之后的肿瘤治疗方法.肿瘤疫苗作为主动特异性免疫治疗,在临床中起到越来越重要的作用,人们开始尝试利用多种方法制备肿瘤疫苗并利用其促进机体免疫应答,从整体细胞,分子水平调控机体对肿瘤的免疫.目前肿瘤疫苗的研制已取得很大进展,给人类战胜肿瘤提供很大希望.     

头颈部鳞状细胞癌治疗方法选择中的理性分析

近年来肿瘤生物治疗已经发展成为继手术、放疗和化疗之后的第四种治疗方法,并且已被逐步应用于头颈部鳞状细胞癌的治疗中。因此,如何选择合适的治疗方法、制定最佳治疗方案成为临床工作的重点。通过辩证性、系统性分析,可以认为优化组合的综合治疗有望成为头颈部鳞状细胞癌的主导治疗方法。     

脑转移瘤不同治疗方案的选择及比较

脑转移瘤是指起源于中枢神经系统以外组织的肿瘤发生扩散累及脑组织而形成的肿瘤,是高致残率与死亡率的恶性疾病,近年来其发病率日益增高,已超过原发颅内肿瘤成为颅内最常见的肿瘤。多数威胁脑转移瘤患者生命的是由于颅高压,而外科手术是解决颅高压最快捷有效的方法。面对全脑放疗、立体定向放疗、化疗、分子靶向等其他多样性的治疗手段,如何个体化选择手术与不同治疗方式的治疗时机及联合方式,以达到最佳的治疗效果,仍需进一步探讨。     

头颈部鳞状细胞癌治疗方法选择中的理性分析

近年来肿瘤生物治疗已经发展成为继手术、放疗和化疗之后的第四种治疗方法,并且已被逐步应用于头颈部鳞状细胞癌的治疗中.因此,如何选择合适的治疗方法、制定最佳治疗方案成为临床工作的重点.通过辩证性、系统性分析,可以认为优化组合的综合治疗有望成为头颈部鳞状细胞癌的主导治疗方法.     

围肝癌根治切除术期需行经肝动脉化疗栓塞吗

经肝动脉化疗栓塞是原发性肝癌围手术期常见的辅助治疗手段。对于可手术切除的肝癌,化疗栓塞可以缩小肿瘤,提高可切除率;还可能清除潜在的肝内播散灶,减低术后的复发率。但介入治疗本身可以加重肝脏的损伤,并可能诱导肿瘤血管生长因子分泌,肿瘤血管增生等,增加肿瘤播散的机会。临床随机对照研究并没有发现围手术期化疗栓塞能提高肝癌患者的...     

节拍化疗——转移性乳腺癌治疗的新选择

肿瘤新生血管生成在肿瘤生长、转移等过程中起着重要作用,抗肿瘤血管治疗被认为是一种很有前途的肿瘤靶向治疗。化疗药物如环磷酰胺、甲氨蝶呤等在长期、低剂量非常规给药方式（节拍化疗）下具有显著的抗肿瘤血管生成能力。节拍化疗有望成为转移性乳腺癌一种全新的治疗模式。     

Clinical Predictors of Depression in Patients with Low-Grade Brain Tumors: Consideration of a Neurologic Versus a Psychogenic Model

Few studies have examined quality of life issues in patients with brain tumors, though coping with cancer is stressful and is associated with heightened levels of depression. We used regression to examine the clinical factors that might predict depression in a group of 57 adults with low-grade brain tumors after surgery but prior to radiotherapy and chemotherapy. A neurological model comprised of tumor characteristics and treatment was compared with a psychogenic model comprised of both psychosocial and psychodynamic variables. Demographic variables and level of fatigue were also included. A model consisting primarily of fatigue (also clinically elevated) and secondarily of tumor location and aggressiveness of surgical treatment accounted for 33% of the depression score. In a small group at a later follow-up when patient depression was clinically elevated (4–6 years after baseline), fatigue, female sex, cognitive dysfunction, increased family support, and increased report of physical symptoms were associated with depression. The late out findings remain exploratory because of the small sample size, but they suggest that depression develops over time and results from a combination of neurological and psychosocial problems that ensue initial treatments. Treating these collateral problems may reduce the complications from depression.     

Combination treatment of malignant brain tumors. Results of initial experiences

First experiences with the combined treatment of malignant gliomas (29 cases) are presented in connection with the results reported in literature. The cytostatic therapy has been carried out according to the modified Israel-Scheme of Heiss et al. Using the combined treatment (resection of tumor, radiotherapy and polychemotherapy) a prolongation of survival time to 55 till 80 weeks is noticeable. The patients observed in our study survived on an average 79,8 weeks (operation and chemotherapy) resp. 94,7 weeks (operation, radiotherapy and chemotherapy). Special problems of the cytostatic therapy of malignant brain tumors are considered, among others in relation to the blood-brain-barrier and the tumorcell-kinetics; a further optimation of therapy is necessary.     

直肠间质瘤致下消化道大出血1例报告

胃肠道间质瘤是一种发生于消化道的少见的间叶肿瘤,直肠间质瘤更为罕见,在直肠肿瘤中的发生率0．1％以下。直肠问质瘤的临床表现无特异性,与其他直肠肿瘤相似,随肿瘤逐渐增大可表现为排便习惯改变、便血、排便困难等。临床确定诊断困难。手术治疗是能够治愈直肠问质瘤的唯一方法。格列卫作为一线化疗药物对术前降期及改善预后都有良好疗效。本例患者因下消化道大出血入院,肿瘤近肛缘,术中病理考虑为直肠闻质瘤,完整切除肿瘤后行保肛术。术后应用格列卫,随诊3个月无复发、转移。     

恶性肿瘤动物模型的建立

建立恶性肿瘤动物模型是医学科研工作者重要的研究手段。恶性肿瘤的自发肿瘤模型,诱发肿瘤模型和移植肿瘤模型有着各自的机体与外界施加因素之间对立平衡,对界因素逐渐同体所转化和接纳,最终导致肿瘤形成,同时机体也荷瘤。因此,任何影响动物和施加固的条件均可促进和减弱肿瘤形成的起始,进展,结局。就三种恶性肿瘤动物模型建立过程中启示呈现出来,并对不同模型特点和选择进行评述。     

Verbal memory abilities of children with brain tumors.

Several critical neuroanatomical structures and pathways for memory performance are located in the third ventricle region. This led us to predict that verbal memory abilities would be more impaired in children treated for third ventricle tumors compared to those treated for cerebellar tumors. Archival data was obtained from 24 pediatric patients with third ventricle region tumors and 18 pediatric patients with cerebellar tumors. Neuroradiological verifications of tumor involvement and hydrocephalus severity (i.e., Evans Index) on preoperative scans and MRIs proximal to the time of the neuropsychological evaluation were conducted. The potential confounds of hydrocephalus severity, seizure medication, age, radiation treatment, and chemotherapy were addressed. Verbal IQ was comparable between tumor groups and in the Average range. The third ventricle region group performed significantly worse on list learning and delayed list recall compared to the cerebellar group. Their mean performance was in the clinically impaired range on both trials. The third ventricle region tumor group performed better than the cerebellar tumor group on Digit Span, a basic repetition, attention span task. These findings support the hypothesis that pediatric patients with third ventricle region brain tumors are more likely to be impaired on verbal recall tasks compared to pediatric patients with cerebellar brain tumors. In contrast, patients who were treated for cerebellar tumors were more impaired on the basic repetition, attention span task compared to patients who were treated for third ventricle tumors. Future studies should examine the specific neuroanatomical structures and pathways that are damaged and may influence differential cognitive impairments in children.     

Verbal Memory Abilities of Children With Brain Tumors

Several critical neuroanatomical structures and pathways for memory performance are located in the third ventricle region. This led us to predict that verbal memory abilities would be more impaired in children treated for third ventricle tumors compared to those treated for cerebellar tumors. Archival data was obtained from 24 pediatric patients with third ventricle region tumors and 18 pediatric patients with cerebellar tumors. Neuroradiological verifications of tumor involvement and hydrocephalus severity (i.e., Evans Index) on preoperative scans and MRIs proximal to the time of the neuropsychological evaluation were conducted. The potential confounds of hydrocephalus severity, seizure medication, age, radiation treatment, and chemotherapy were addressed. Verbal IQ was comparable between tumor groups and in the Average range. The third ventricle region group performed significantly worse on list learning and delayed list recall compared to the cerebellar group. Their mean performance was in the clinically impaired range on both trials. The third ventricle region tumor group performed better than the cerebellar tumor group on Digit Span, a basic repetition, attention span task. These findings support the hypothesis that pediatric patients with third ventricle region brain tumors are more likely to be impaired on verbal recall tasks compared to pediatric patients with cerebellar brain tumors. In contrast, patients who were treated for cerebellar tumors were more impaired on the basic repetition, attention span task compared to patients who were treated for third ventricle tumors. Future studies should examine the specific neuroanatomical structures and pathways that are damaged and may influence differential cognitive impairments in children.     

阿霉素对心肌影响的实验研究

阿霉素(adriamycin,ADM)临床上广泛用于多种恶性肿瘤的治疗,但ADM可致严重的心肌毒性。目前许多肿瘤疾病采取先化疗后麻醉、手术治疗方案,化疗药对心肌的损伤并没有引起临床医生的足够重视,尤其是麻醉科医生,我们应慎重考虑阿霉素等化疗药对心肌的影响,保障围手术期的安全。     

Results of combined treatment of malignant brain tumors with various cytostatic protocols

Nowadays best results in the treatment of malignant brain tumors can be obtained with an interdisciplinary combined treatment (operation, radiation, antineoplastic chemotherapy). We treated 83 patients with gliomas after operation with a combined radiation/chemotherapy. Chemotherapy was performed by two different schemas (Israel n = 49, COMP n = 34). Both groups had the same structure concerning the 10 most important prognostic factors. The median survival time was found to be 26.1 months in the Israel-group and 22.8 months respectively in the COMP-group. The number of the long-time survivors is increasing in the COMP-group.     

医疗费用在医疗制度改革中的变化趋势及政策取向

医疗费用的水准及其变化过程主要取决于一个国家的经济发展水平。我们预测其变化趋势可能经历三个新阶段。因此,在宏观管理上要注意四个方面的政策取向：重效率轻收入、重效果轻价格、重科学管理轻粗放经营、重长远利益轻眼前利益。