radioterapia

放射性马甲
  • 文章类型: Journal Article
    背景:许多前瞻性研究表明,将基因组测定纳入临床实践显着影响早期乳腺癌患者辅助治疗的选择。然而,对于局部复发的治疗不存在相同的证据.
    目的:这项工作的主要目的是确定临床病理,分子,和遗传参数,使患者可以更准确地分为风险组,为了创建一个局部区域复发风险分类工具,PersonalRT27
    方法:为了创建PersonalRT27,我们回顾性评估了接受OncotypeDx®和MammaPrint®基因测试的早期乳腺癌患者(I期或II期)的变量。对测试中包含的这些变量和因素进行分类和加权,以获得1至5分之间的分数,以表示较低或较高的复发风险。分别,基于这些因素,并由研究人员确定。
    结果:平均随访时间为60.5个月(范围25-96个月);分析时的局部无进展生存率为98.4%,总生存率为97.5%,其中0.6%的死亡是癌症特异性的。PersonalRT27的曲线下面积为0.76(95%CI[0.70,0.81]),灵敏度为78%,特异性为58.9%。我们使用这些因素来创建基于网络的医院列线图。
    结论:PersonalRT27是一种新颖的工具,它整合了临床病理,分子,和遗传参数。实施其临床使用将需要外部和独立验证。
    BACKGROUND: Numerous prospective studies have shown that the incorporation of genomic assays into clinical practice significantly impacts the choice of adjuvant treatments for patients with early-stage breast cancer. However, the same evidence does not exist for the treatment of locoregional recurrences.
    OBJECTIVE: The main objective of this work was to identify the clinicopathological, molecular, and genetic parameters that allow patients to be more precisely categorised into risk groups, in order to create a locoregional recurrence riskclassification tool, the PersonalRT27.
    METHODS: To create PersonalRT27, we retrospective assessed the variables of patients with early breast cancer (stages I or II) who had undergone the OncotypeDx ® and MammaPrint ® genetic tests. These variables and factors included in the tests were categorised and weighted to obtain scores between 1 and 5 pointsto represent a lower or higher risk of relapse, respectively, based on these factors and as determined by the researchers.
    RESULTS: The mean follow-up time was 60.5 months (range 25-96 months); locoregional progression-free survival at the time of the analysis was 98.4%, and overall survival was 97.5%, of which 0.6% of the deaths had been cancer specific. The area under the curve for the PersonalRT27 was 0.76 (95% CI [0.70, 0.81]), sensitivity was 78%, and the specificity was 58.9%. We used these factors to create an inhospital web-based nomogram.
    CONCLUSIONS: The PersonalRT27 is a novel tool that integrates clinical-pathological, molecular, and genetic parameters. External and independent validation will be required to implement its clinical use.
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  • 文章类型: Journal Article
    OBJECTIVE: To measure 3-year care costs of breast, prostate, colorectal and lung cancers disaggregated by site and clinical stage.
    METHODS: A retrospective observational design was employed to investigate care costs of cases recorded in the Registry of the Basque Country between 2010 and 2015. Data gathered included TNM stage and demographic, clinical and resource use variables. Total costs per patient with stage IV disease were calculated by combining generalized linear models with parametric survival analysis. Unit costs were obtained from the analytical accounting system of the Basque Health Service.
    RESULTS: The sample comprised 23,782 cancer cases (7801 colorectal, 5530 breast, 4802 prostate and 5649 lung cancer). The mean 3-year costs per patient with stage I to III disease were €11,323, €13,727, €8,651 and €12,023 for colorectal, breast, prostate and lung cancer, respectively. The most important cost components were surgery and chemotherapy. Total survival-adjusted costs until death for patients with stage IV disease (€27,568, €26,296, €16,151 and €15,931 for breast, colorectal, lung and prostate cancer, respectively) were higher than the 3-year costs for those with earlier-stage disease.
    CONCLUSIONS: This study quantitatively shows the pattern of changes in the economic burden of cancer throughout its natural history and the great magnitude of this burden for the health system. The use of indicators based on real-world data from each regional health service would allow cancer care in each region to be tailored to local population needs.
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  • 文章类型: Journal Article
    The treatment of non-functioning pituitary adenomas raises two questions: when should they be treated and what role does each available treatment play. We review the usefulness of the different treatments and propose a therapeutic scheme based on the existing literature. Active treatment of pituitary adenomas should be performed when they produce symptoms, have contact with the optic tract, or have grown on imaging tests. The treatment is surgical, using radiotherapy for cases with significant non-removable postsurgical tumour remnants and for those in which histopathology studies show aggressive features. Medical treatment is reserved for situations in which surgical and radiotherapy treatments have been exhausted. The most advisable surgical treatment is endoscopic, although experienced neurosurgeons achieve results with microsurgery that are only slightly inferior.
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  • 文章类型: Journal Article
    BACKGROUND: In many regions, laryngeal carcinoma is a common upper respiratory tract cancer, most commonly involving the glottic region. The treatment of early glottic cancer includes radiotherapy, open surgery and laryngeal laser microsurgery. However, the preferred treatment for early glottic cancer is still controversial.
    OBJECTIVE: To study the factors affecting the 5-year survival rate of Tis-2N0M0 early glottis cancer and to demonstrate the oncological safety of different treatments.
    METHODS: 144 patients with early glottic cancer were analyzed retrospectively. All patients were clinically node negative. 53 patients underwent open surgery, transoral CO2 laser microsurgery in 46 cases and radiotherapy in 45 cases. The patients were followed up for 26 - 84 months, with an average follow-up period of 62.9 months.
    RESULTS: The 5-year overall survival was 82.6%. The 5 year survival rates of open surgery, laser microsurgery and radiotherapy were 83.0%, 82.6% and 82.2%, respectively. There was no significant difference in 5-year survival rate among the three treatments (p =  0.987). In multivariate analysis, age, T-stage, pathological grading, and anterior commissure involvement were important prognostic factors for early glottic cancer.
    CONCLUSIONS: There was no significant difference in 5 year survival rate among patients treated by either radiotherapy, laser microsurgery or open surgery for early glottic cancer. We urge more attention to the age, T-stage, pathological grade, and anterior commissure involvement of the patients.
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  • 文章类型: Journal Article
    BACKGROUND: Laryngeal squamous cell carcinoma is the second most prevalent malignancy among head and neck tumors, and the treatment of patients with stage I or II disease can be performed with surgery or radiation therapy. National population studies describing therapeutic results comparing these modalities are unusual, but they can be very important to direct treatment guidelines.
    OBJECTIVE: To evaluate the survival results of patients with laryngeal squamous cell carcinoma at clinical stages I or II, according to the main therapeutic modalities used.
    METHODS: Cross-sectional, population-based study using the database of Fundação Oncocentro de São Paulo from January 2000 to March 2019. Inclusion criteria were patients with laryngeal squamous cell carcinoma in clinical stages cT1-2N0. To compensate for the non-random allocation of patients and the imbalance between confounding variables between groups, we used the propensity score methodology.
    RESULTS: A total of 3786 patients met the inclusion criteria. Regarding the cT stage, there were 2171 patients (57.3%) with cT1 tumors. Patients in the public health system had a longer time between diagnosis and treatment (p < 0.001). The analysis by propensity score showed that patients treated with surgery had a tendency towards better disease-specific survival (p  = 0.012). Comparing radiotherapy alone versus its combination with radiochemotherapy, radiotherapy alone showed a tendency towards a better survival rate (p < 0.001).
    CONCLUSIONS: Analysis by propensity score identified better results for disease-specific survival in patients with laryngeal squamous cell carcinoma at clinical stages I and II treated by surgery when compared to radiotherapy.
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  • 文章类型: Journal Article
    BACKGROUND: Radiation therapy (RT) is a complex process that employs high-dose radiation for therapeutic purposes. Incident reporting and analysis, in addition to being a legal requirement in RT, provides information that helps to improve patient safety. This paper describes our experiences over a 9 year period in which a local incident reporting and learning system (SNAI) specific to RT was employed.
    METHODS: The center has 4 lineal accelerators that treat a total of 1900 patients annually. The first action taken with a view to improving patient safety was the implementation of a multidisciplinary RT safety group (GSRT), who decided to employing a methodology based on incident reporting. For this purpose, a local SNAI was implemented, adapting the ROSEIS incident reporting system used and consolidated by the European Society of Radiation Oncology Therapy (ESTRO). All incidents in which patients received an incorrect RT session were considered adverse events (AE) and were thus analyzed. Finally, the opinion of the professionals involved in relation to the SNAI and the functioning of the safety group was evaluated by means of a survey.
    RESULTS: From June 2009 to October 2018, 1708 incidents were recorded, with an increasing incidence observed over time. Approximately 2.5% of the incidents reported were AE. The remainders were events that did not affect the patient. As many as 55% of incidents were detected in the treatment administration phase. Radiotherapy technicians were the professionals who reported more incidents. The majority of recorded cases originated from procedural shortcomings relating to communication or work protocols. Implemented remedial actions were aimed at reducing the frequency of AE and facilitating its early detection. Actions employed were essentially: drafting and revision of protocols and circuits, implementation of checklists, and training actions. Of the workers surveyed, 85% positively valued the incorporation of the SNAI and the existence of a safety group. However, 15% of the professionals considered that the methodology used in the analysis of incidents was not totally objective i.e punitive in nature.
    CONCLUSIONS: The safety of the patient receiving RT has been approached from a methodology based on a local SNAI. The analysis of reported incidents has promoted various actions aimed at improving the safety of patients receiving RT. The methodology used has been well received by the workers and has helped to introduce a culture of patient safety for the majority of professionals involved. Furthermore, the local SNAI facilitates compliance with European regulations regarding the obligation to record incidents in RT.
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  • 文章类型: Journal Article
    血管外皮细胞瘤和孤立性纤维瘤是发病率较低的肿瘤。它们有局部复发和转移的趋势。WHO将这两种肿瘤整合到一个新实体中,但悬而未决的问题之一是证明手术加辅助放射治疗(RT)的有效性并标准化其使用。我们回顾了10年的数据。我们评估了病理和放射学特征。评估手术记录以确定肿瘤切除的特征和程度。我们比较了使用或不使用RT的患者的结果。平均随访时间为74.8个月,范围为12个月和210个月。人口包括3名男性(30%)和7名女性(70%)。最常见的位置是大脑凸度(30%),剩下的是颈椎和腰椎,骶骨,心室内,环形的,蝶骨脊和眶内。7例(70%)患者接受术后外照射放疗,标准为部分切除或WHOII和III组织学分级.2例患者在初次手术后12个月和19个月出现局部复发。1例患者接受了2次手术,另一个,4个手术平均无复发生存率为15.5个月。4例患者发现远处转移。10例患者中有3例死亡。5年总生存率为66%,平均总生存期为76个月。首次手术中安全完整的切除是最重要的预后因素。补充RT可能会有所帮助,即使在WHO低级别完全切除的情况下。
    Hemangiopericytoma and Solitary Fibrous Tumor are tumors with low incidence. They have a tendency to recur locally and to metastasize. The WHO integrated both tumors into a new entity but one of the pending issues is to demonstrate the effectiveness of surgery plus complementary radiotherapy (RT) and standardize the use of it. We reviewed the data from 10 years. We assessed pathologic and radiologic characteristics. The operation records were evaluated to determine the features and extent of tumor resection. We compared the outcomes in patients using or not RT. The mean follow-up was 74.8 months, with a range of 12 and 210 months. The population included 3 males (30%) and 7 females (70%). The most common location was brain convexity (30%), the remaining were cervical and lumbar spine, sacrum, intraventricular, torcular, sphenoid ridge and intraorbital. Postoperative external beam radiotherapy was delivered in 7 patients (70%), the criteria were a partial resection or WHO II and III histological grades. 2 patients developed local recurrences at 12 and 19 months after initial surgery. 1 patient underwent 2 surgeries, and the other, 4 surgeries. The mean recurrence free survival rate was 15.5 months. Distant metastases were found in 4 patients. 3 of the 10 patients died. Five-year overall survival rate was 66% and mean overall survival was 76 months. A safe and complete resection in the first surgery is the most important prognostic factor. Complementary RT can be helpful, even in cases of complete resection in WHO low-grade.
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  • 文章类型: Journal Article
    BACKGROUND: Pharyngocutaneous fistula is the most significant complication after salvage total laryngectomy in patients who have received previous treatment with radiotherapy with or without chemotherapy.
    OBJECTIVE: Our purpose is to review the fistula rate in radiated patients undergoing salvage total laryngectomy, to determine if the use of pectoralis major flap interposition reduces the incidence and duration of fistula and to examine other risk factors.
    METHODS: We made a retrospective review of patients undergoing salvage total laryngectomy for exclusively larynx cancer after failure of primary curative radiotherapy between 2000 and 2017. General data from patients, risk factors and other complications were analyzed.
    RESULTS: We identified 27 patients whose mean age was 66.4 years, mainly male (92.5%). The primary closure group without pectoralis major flap included 14 patients, and the group with pectoralis major flap closure included 13 patients. Pharyngocutaneous fistula was present in 15 patients (55.5%). Global pharyngocutaneous fistula rate was higher in the group of patients without pectoralis major flap comparing with those were the flap was interposed (78.6% versus 30.8%, p=0.047). Also the pharyngocutaneous fistulas which need to be repaired with surgery (64.3% versus 7.7%, p=0.03) and large pharyngostomes (64.3% versus 0%, p=0.0004) were present in a higher rate in the group closed primary without pectoralis major flap. We did not find other risk factors with statistical significance. Oral diet initiation (84 days versus 21.5 days, p=0.039) and the duration of hospitalization (98.3 days versus 27.2 days, p=0.0041) were much lower in patients with a preventive pectoralis major flap. Two patients died as a consequence of complications of large pharyngostomes.
    CONCLUSIONS: Prophylactic pectoralis major flap reduced the incidence, severity and duration of fistula and should be considered during salvage total laryngectomy.
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  • 文章类型: Comparative Study
    BACKGROUND: The use of bilateral mastectomy with immediate reconstruction is increasing. Radiotherapy increases complications; however, its uses have been extended. We evaluate the profile of the complications and long-term failure of reconstruction through a comparative analysis with a cohort without radiotherapy.
    METHODS: Retrospective analysis of patients with breast cancer who underwent mastectomy with immediate reconstruction during 2000-2016. Three groups were evaluated: 1) patients who received radiotherapy and posterior breast reconstruction; 2) patients with bilateral mastectomy and immediate reconstruction following adjuvant radiotherapy; 3) patients who did not receive radiotherapy at all. Demographic variables, surgical techniques and postoperative morbidity were assessed. Outcomes and complications were compared between cohorts. Analysis was done with SPSS Statistics.
    RESULTS: 296 bilateral mastectomies with immediate reconstruction. Mean age 48.4 ± 9. No differences in comorbidity in the different groups. Group 1: 125 patients. Radiotherapy given 21.69 months before, on average. Complication rate: 20%. Failure of reconstruction rate: 20%. Reoperation rate: 33.6%. Group 2: 71 patients. Radiotherapy after reconstruction: mean 134.2 days. Complication rate: 36.7%. Failure of reconstruction rate: 21.1%. Reoperation rate: 16.9%. Group 3: 100 patients. Complication rate: 25%. Failure of reconstruction rate: 21%. Reoperation rate: 20%. Morbidity published in patients after radiotherapy before or after reconstruction is higher than complications in patients who did not receive radiotherapy. Even so, in our series they were similar. We found a higher sequelae rate in group 1, with almost double the rate of reoperation.
    CONCLUSIONS: Patients who underwent radiotherapy before reconstruction had a higher risk of developing failure of reconstruction and needing reoperation than those patients who received radiotherapy after breast reconstruction or did not receive radiotherapy at all.
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  • 文章类型: Journal Article
    Postirradiation morphea is an uncommon entity that has been mostly described in women with breast cancer. The increasing use of radiotherapy to treat breast cancer and the clinical similarities between morphea and other conditions, such as radiodermatitis, postirradiation fibrosis, and tumor recurrence, highlights the need for dermatologists to be familiar with this entity. We present a series of 6 women with a mean age of 64.2 years and a mean latency of 9.5 years between radiotherapy for breast cancer and onset of morphea. Four of the patients had a history of autoimmune disease: rheumatoid arthritis, Sjögren syndrome, vitiligo, and Crohn disease. No specific risk factors for postirradiation morphea have been identified to date, although it would appear that a history of autoimmune disease could be associated with an increased risk of morphea in patients treated with radiation therapy.
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