NHL, Non-Hodgkin Lymphoma

NHL,非霍奇金淋巴瘤
  • 文章类型: Journal Article
    在非霍奇金淋巴瘤(NHL)的治疗中,多种治疗选择是可用的。改善结果预测对于优化治疗至关重要。代谢活跃肿瘤体积(MATV)已被证明是NHL的预后因素。通常使用基于标准化摄取值(SUV)的半自动阈值方法检索,从18F-氟脱氧葡萄糖正电子发射断层扫描(18F-FDGPET)图像计算。然而,目前尚无NHL的共识方法。这项研究的目的是回顾有关所使用的不同分割方法的文献,并使用内部创建的软件工具评估选定的方法。一个软件工具,开发了MUltipleSUV阈值(MUST)分割器,通过在PET图像上放置种子点来识别肿瘤位置,其次是随后的地区增长。在文献综述的基础上,选择了9种SUV阈值方法并提取了MATV。在68例NHL患者的队列中使用了MUST节段。用配对t检验评估MATV的差异,以及相关性和分布数字。在NHL患者中观察到基于不同分割方法的MATV之间的高变异性和显着差异(p<0.05)。MATV的中位数范围为35至211cc。根据文献没有确定MATV的共识。使用MUST分割器和9种选定的SUV阈值方法,我们证明了MATV的巨大和显着的变化。确定NHL患者的最佳分割方法对于进一步改善毒性预测至关重要,回应,和治疗结果,这可以由MUST-Segmenter促进。
    In the treatment of Non-Hodgkin lymphoma (NHL), multiple therapeutic options are available. Improving outcome predictions are essential to optimize treatment. The metabolic active tumor volume (MATV) has shown to be a prognostic factor in NHL. It is usually retrieved using semi-automated thresholding methods based on standardized uptake values (SUV), calculated from 18F-Fluorodeoxyglucose Positron Emission Tomography (18F-FDG PET) images. However, there is currently no consensus method for NHL. The aim of this study was to review literature on different segmentation methods used, and to evaluate selected methods by using an in house created software tool. A software tool, MUltiple SUV Threshold (MUST)-segmenter was developed where tumor locations are identified by placing seed-points on the PET images, followed by subsequent region growing. Based on a literature review, 9 SUV thresholding methods were selected and MATVs were extracted. The MUST-segmenter was utilized in a cohort of 68 patients with NHL. Differences in MATVs were assessed with paired t-tests, and correlations and distributions figures. High variability and significant differences between the MATVs based on different segmentation methods (p < 0.05) were observed in the NHL patients. Median MATVs ranged from 35 to 211 cc. No consensus for determining MATV is available based on the literature. Using the MUST-segmenter with 9 selected SUV thresholding methods, we demonstrated a large and significant variation in MATVs. Identifying the most optimal segmentation method for patients with NHL is essential to further improve predictions of toxicity, response, and treatment outcomes, which can be facilitated by the MUST-segmenter.
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  • 文章类型: Case Reports
    目的:血液病患者与非血液病患者相比,COVID-19的特征很少被分析。我们的目的是分析COVID-19血液学患者与非血液学患者的临床特征和结局是否存在差异。
    方法:在2所大学医院进行回顾性队列研究,纳入SEMICOVID19数据库中的实验室确诊COVID-19患者。将患有基础血液病的队列与年龄和COVID-19日期相匹配的无血液病的对照组进行比较(1:2)。
    结果:纳入了2020年3月至5月的71例病例和142例对照。20人(28.1%)最近接受过化疗。12例(16.9%)为干细胞移植受者(SCT)。11例(15.5%)与COVID-19诊断同时出现中性粒细胞减少。血液病患者出现ARDS(58.5vs20.7%,p=0.0001),血栓性并发症(15.7vs2.1%,p=0.002),DIC(5.7vs0.0%,p=0.011),心力衰竭(14.3vs4.9%,p=0.029)和要求入住ICU(15.5vs2.8%,p=0.001),MV(14.1%对2.1%,p0.001),类固醇(64.8vs33.1%,p=0.0001),托珠单抗(33.8%vs8.5%,p=0.0001)或anakinra治疗(9.9%vs0%,p=0.0001)更频繁。住院死亡率明显更高(38.0%vs18.3%,p=0.002)。
    结论:我们的结果表明,与非血液病患者相比,COVID-19在血液病患者中的预后较差,独立于年龄,ARDS和血栓性并发症的发展导致更高的院内死亡率。
    OBJECTIVE: The characteristics of COVID-19 in haematologic patients compared to non-haematologic patients have seldom been analyzed. Our aim was to analyze whether there are differences in clinical characteristics and outcome of haematologic patients with COVID-19 as compared to non-haematologic.
    METHODS: Retrospective cohort study in 2 University hospitals of patients admitted with laboratory-confirmed COVID-19 included in the SEMICOVID19 database. The cohort with underlying haematologic disease was compared to a cohort of age and date-of-COVID-19-matched controls without haematologic disease (1:2).
    RESULTS: 71 cases and 142 controls were included from March-May 2020.Twenty (28.1%) had received recent chemotherapy. Twelve (16.9%) were stem cell transplant recipients (SCT). Eleven (15.5%) were neutropenic concurrently with COVID-19 diagnosis.Haematologic patients presented ARDS (58.5 vs 20.7%, p = 0.0001), thrombotic complications (15.7 vs 2.1%, p = 0.002), DIC (5.7 vs 0.0%, p = 0.011), heart failure (14.3 vs 4.9%, p = 0.029) and required ICU admission (15.5 vs 2.8%, p = 0.001), MV (14.1% vs 2.1%, p 0.001), steroid (64.8 vs 33.1%, p = 0.0001), tocilizumab (33.8 vs 8.5%, p = 0.0001) or anakinra treatment (9.9% vs 0%, p = 0.0001) more often. In-hospital mortality was significantly higher (38.0% vs 18.3%, p = 0.002).
    CONCLUSIONS: Our results suggest COVID-19 has worse outcomes in haematologic patients than in non-haematologic, independently of age, and that the development of ARDS and thrombotic complications drive the higher in-hospital mortality.
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  • 文章类型: Journal Article
    背景:霍奇金淋巴瘤(HL)和纵隔非霍奇金淋巴瘤的长期幸存者经历放疗和/或含蒽环类药物的化疗的晚期不良反应,导致过早的心血管疾病发病率和死亡率。
    目的:本研究的目的是使用心血管磁共振(CMR)在HL和非霍奇金淋巴瘤的幸存者中鉴定亚临床心血管疾病的标志物。
    方法:CMR在80例接受纵隔放疗伴或不伴蒽环类药物治疗的淋巴瘤幸存者中进行,并将结果与年龄和性别相匹配的40名健康对照者进行了比较。
    结果:在80名淋巴瘤幸存者中,98%的人有HL的病史,平均年龄为47±11岁,54%是男性。中位放疗剂量为36Gy(四分位距:36-40Gy),70例淋巴瘤幸存者(88%)中,放疗与蒽环类药物联合使用。诊断与CMR之间的平均时间为20±8年。在淋巴瘤幸存者中发现左心室(LV)射血分数(53%±5%vs60%±5%;P<0.001)和LV质量(47±10g/m2vs56±8g/m2;P<0.001)和更高的LV收缩末期容积(37±8mL/m2vs33±7mL/m2;P=0.013)。淋巴瘤幸存者的LV整体应变参数也明显更差(全部P<0.02)。与健康对照组相比,淋巴瘤幸存者的固有心肌T1明显更高(980±33msvs964±25ms;P=0.007),11%的幸存者存在晚期钆增强。
    结论:长期淋巴瘤幸存者在CMR上的LV功能和天然心肌T1有可检测的变化。需要进一步的纵向研究来评估这些变化对治疗和临床结果的影响。
    BACKGROUND: Long-term survivors of Hodgkin lymphoma (HL) and mediastinal non-Hodgkin lymphoma experience late adverse effects of radiotherapy and/or anthracycline-containing chemotherapy, leading to premature cardiovascular morbidity and mortality.
    OBJECTIVE: The aim of this study was to identify markers for subclinical cardiovascular disease using cardiovascular magnetic resonance (CMR) in survivors of HL and non-Hodgkin lymphoma.
    METHODS: CMR was performed in 80 lymphoma survivors treated with mediastinal radiotherapy with or without anthracyclines, and results were compared with those among 40 healthy control subjects matched for age and sex.
    RESULTS: Of the 80 lymphoma survivors, 98% had histories of HL, the mean age was 47 ± 11 years, and 54% were male. Median radiotherapy dose was 36 Gy (interquartile range: 36-40 Gy), and radiotherapy was combined with anthracyclines in 70 lymphoma survivors (88%). Mean time between diagnosis and CMR was 20 ± 8 years. Significantly lower left ventricular (LV) ejection fraction (53% ± 5% vs 60% ± 5%; P < 0.001) and LV mass (47 ± 10 g/m2 vs 56 ± 8 g/m2; P < 0.001) and higher LV end-systolic volume (37 ± 8 mL/m2 vs 33 ± 7 mL/m2; P = 0.013) were found in lymphoma survivors. LV global strain parameters were also significantly worse in lymphoma survivors (P < 0.02 for all). Native myocardial T1 was significantly higher in lymphoma survivors compared with healthy control subjects (980 ± 33 ms vs 964 ± 25 ms; P = 0.007), and late gadolinium enhancement was present in 11% of the survivors.
    CONCLUSIONS: Long-term lymphoma survivors have detectable changes in LV function and native myocardial T1 on CMR. Further longitudinal studies are needed to assess the implication of these changes in relation to treatment and clinical outcome.
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  • 文章类型: Case Reports
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  • 文章类型: Journal Article
    在有淋巴瘤病史并出现乳酸性酸中毒的患者中,区分仅脓毒症与进行性淋巴瘤。
    我们从2014年1月至2015年12月确定了非霍奇金淋巴瘤(NHL)或霍奇金淋巴瘤患者。患者分为2组:仅脓毒症或进行性淋巴瘤。采用双侧Wilcoxon秩和检验和χ1/Fisher精确检验比较连续变量和分类变量,分别。使用Kaplan-Meier分析来估计总生存期(OS)。
    总共确定了51例患者;33例(65%)患者被归类为仅脓毒症组,和18(35%),进入进行性淋巴瘤组。住院期间绘制的血清乳酸脱氢酶(LDH)值在仅脓毒症和进行性淋巴瘤组之间具有统计学差异(中位数,262对665U/L;P=.005),分别。血清LDH水平2倍以上正常上限对进展性淋巴瘤的敏感性和特异性分别为56%(95%CI,33%~79%)和85%(95%CI,73%~97%),分别。血清LDH水平是不良OS的独立预测因素(风险比,27.8;95%CI,4.0至160.1;P<.001),而血清白蛋白水平(危险比,0.05;95%CI,0.01~0.27;P<.001)是OS改善的独立预测因素。
    血清LDH水平与系列血清乳酸值结合使用可能是区分进行性淋巴瘤性疾病患者和仅患有脓毒症的淋巴瘤患者的可靠标志物。LDH水平应在所有出现乳酸性酸中毒的淋巴瘤患者中获得。
    UNASSIGNED: To distinguish between sepsis only vs progressive lymphoma in patients with a history of lymphoma who present to the hospital with lactic acidosis.
    UNASSIGNED: We identified patients with non-Hodgkin lymphoma (NHL) or Hodgkin lymphoma from January 2014 to December 2015. Patients were categorized into 2 groups: sepsis only or progressive lymphoma. Two-sided Wilcoxon rank sum test and χ1/Fisher exact test were used to compare the continuous and categorical variables, respectively. Kaplan-Meier analysis was used to estimate overall survival (OS).
    UNASSIGNED: A total of 51 patients were identified; 33 (65%) patients were categorized into the sepsis only group, and 18 (35%), into the progressive lymphoma group. Values for serum lactate dehydrogenase (LDH) drawn during hospitalization were statistically different between the sepsis only and progressive lymphoma groups (median, 262 vs 665 U/L; P=.005), respectively. The sensitivity and specificity of serum LDH level 2 or more times the upper limit of normal for progressive lymphoma were 56% (95% CI, 33% to 79%) and 85% (95% CI, 73% to 97%), respectively. Serum LDH level was independently predictive of inferior OS (hazard ratio, 27.8; 95% CI, 4.0 to 160.1; P<.001), while serum albumin level (hazard ratio, 0.05; 95% CI, 0.01 to 0.27; P<.001) was independently predictive of improved OS.
    UNASSIGNED: Serum LDH levels used in conjunction with serial serum lactate values may be reliable markers to differentiate patients with progressive lymphomatous disease from patients with lymphoma with sepsis only. The LDH levels should be obtained in all patients with lymphoma who present to the hospital with lactic acidosis.
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  • 文章类型: Case Reports
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  • 文章类型: Case Reports
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  • 文章类型: Journal Article
    OBJECTIVE: To assess our adherence to treatment guidelines for diffuse large B-cell lymphoma (DLBCL) established by the American Society of Hematology in 2014 through implementation of a quality improvement initiative (QII) at our institution in 2015.
    METHODS: Patients with newly diagnosed DLBCL treated from January 1, 2006, through December 31, 2017, were identified. Electronic medical records were reviewed for documentation of American Society of Hematology Practice Improvement Module quality measures (eg, key pathologic features of DLBCL, lymphoma staging, and screening for hepatitis B virus [HBV] infection in patients receiving rituximab-based chemotherapy). We also reviewed assessment of prognosis by revised International Prognostic Index score, testing for hepatitis C virus, HBV, and HIV, chemotherapy education, and the addition of rituximab in the treatment regimen of CD20+ DLBCL.
    RESULTS: Following QII implementation, we saw improvements in most metrics, including reporting of key molecular features (fluorescence in situ hybridization for c-MYC, BCL2, and BCL6, from 45.5% [75 of 165 patients] before QII to 91.7% [22 of 24 patients] after QII; P<.001), screening for HBV (41.8% [69 of 165 patients] to 91.7% [22 of 24 patients]; P<.001) and HIV infections (33.9% [56 of 165 patients] to 87.5% [21 of 24 patients]; P<.0001), providing chemotherapy education (92.7% [153 of 165 patients] to 100%), and use of rituximab for CD20+ DLBCL (83.6% [138 of 165 patients] to 100%; P=.05). All patients had positron emission tomography-computed tomography for DLBCL staging, and there was significantly lower use of bone marrow biopsy (P=.011).
    CONCLUSIONS: Implementating a QII and employing standardized metrics can aid in improving quality of care for patients with newly diagnosed DLBCL and allow opportunities to build and ensure better adherence to evolving patient care guidelines.
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  • 文章类型: Journal Article
    下一代测序(NGS)极大地改善了癌症研究和临床试验的灵活性和结果,为大规模基因组测试提供高度敏感和准确的高通量平台。与全基因组(WGS)或全外显子组测序(WES)相比,靶向基因组测序(TS)专注于一组已知与疾病发病机理和/或临床相关性密切相关的基因或靶标,提供更大的测序深度,降低成本和数据负担。这允许靶向测序以高置信度识别靶向区域中的低频率变体。因此适用于分析低质量和片段化的临床DNA样本。因此,TS已广泛用于临床研究和试验,用于患者分层和靶向疗法的开发。然而,它向常规临床应用的过渡一直很缓慢。许多技术和分析障碍仍然存在,需要在大规模和跨中心实施之前进行讨论和解决。迫切需要黄金标准和最先进的程序和管道来加速这一过渡。在这篇综述中,我们首先介绍了TS是如何在癌症研究中进行的,包括各种目标浓缩平台,目标面板的构建,以及利用TS对临床样本进行分析的选定研究和临床研究。然后,我们为TS数据提供了一个通用的分析工作流程,详细讨论了重要的参数和过滤器,旨在提供TS使用和分析的最佳实践。
    Next Generation Sequencing (NGS) has dramatically improved the flexibility and outcomes of cancer research and clinical trials, providing highly sensitive and accurate high-throughput platforms for large-scale genomic testing. In contrast to whole-genome (WGS) or whole-exome sequencing (WES), targeted genomic sequencing (TS) focuses on a panel of genes or targets known to have strong associations with pathogenesis of disease and/or clinical relevance, offering greater sequencing depth with reduced costs and data burden. This allows targeted sequencing to identify low frequency variants in targeted regions with high confidence, thus suitable for profiling low-quality and fragmented clinical DNA samples. As a result, TS has been widely used in clinical research and trials for patient stratification and the development of targeted therapeutics. However, its transition to routine clinical use has been slow. Many technical and analytical obstacles still remain and need to be discussed and addressed before large-scale and cross-centre implementation. Gold-standard and state-of-the-art procedures and pipelines are urgently needed to accelerate this transition. In this review we first present how TS is conducted in cancer research, including various target enrichment platforms, the construction of target panels, and selected research and clinical studies utilising TS to profile clinical samples. We then present a generalised analytical workflow for TS data discussing important parameters and filters in detail, aiming to provide the best practices of TS usage and analyses.
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  • 文章类型: Journal Article
    这项研究的目的是提供癌症患者在诊断时的预期寿命(LE)估计以及自诊断以来LE随时间的变化,以描述癌症在患者一生中的影响。癌症患者的LE是通过标准寿命表方法计算的,使用1985-2011年在基于人群的癌症登记处诊断的意大利患者的相对生存率,并随访至2013年。使用多项式模型对数据进行平滑处理,并将寿命损失(YLL)计算为患者与年龄和性别匹配的一般人群之间的差异。诊断时的YLL在诊断时最年轻的年龄最高,此后稳步下降。对于45岁时确诊的患者,肺癌和卵巢癌的YLL高于20,女性甲状腺癌和男性黑色素瘤的YLL低于6.存活第一年的患者LE逐渐增加,此后减少,接近普通民众的水平。从长远来看,YLL主要取决于年龄。提供定量数据对于更好地定义临床随访和计划医疗保健资源分配至关重要。这些结果有助于评估癌症幸存者中肿瘤死亡的额外风险何时变得可以忽略不计。
    The aims of this study were to provide life expectancy (LE) estimates of cancer patients at diagnosis and LE changes over time since diagnosis to describe the impact of cancer during patients\' entire lives. Cancer patients\' LE was calculated by standard period life table methodology using the relative survival of Italian patients diagnosed in population-based cancer registries in 1985-2011 with follow-up to 2013. Data were smoothed using a polynomial model and years of life lost (YLL) were calculated as the difference between patients\' LE and that of the age- and sex-matched general population. The YLL at diagnosis was highest at the youngest age at diagnosis, steadily decreasing thereafter. For patients diagnosed at age 45 years, the YLL was above 20 for lung and ovarian cancers and below 6 for thyroid cancer in women and melanoma in men. LE progressively increased in patients surviving the first years, decreasing thereafter, to approach that of the general population. YLL in the long run mainly depends on attained age. Providing quantitative data is essential to better define clinical follow-up and plan health care resource allocation. These results help assess when the excess risk of death from tumour becomes negligible in cancer survivors.
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