New evidence supporting lung cancer screening with low dose CT & surgical implications

IntroductionLung cancer is the leading cause of cancer-death worldwide. The U.S. Preventative Services Task Force (USPTSF) approved screening for current or former smokers aged 55–80 based on the results of the National Lung Screening trial (NLST). Following the NLST, new evidence has emerged from clinical trials and updates to previous trials prior to the anticipated update to the USPSTF guideline. We review the new evidence on lung cancer screening with low dose computed tomography (LDCT) and the surgical implications.MethodsA review of new literature was performed pertaining to lung cancer screening since implementation of UPSTF guidelines. Articles for inclusion were identified by both authors’, then search of the Pubmed and Cochrane database was performed from January 1st, 2013 through February 4th, 2020 using the MeSH search terms: “lung cancer”; “screening”; “low dose CT”. The results of these studies are summarized.ResultsWe identified multiple prospective randomized control trials and meta-analysis since the NLST supporting lung cancer-specific mortality with screening. We identified new nodule classification systems and the development of risk-models which may reduce false positive rates and identify high risk patients not currently eligible for screening. Finally, we discussed the surgical implications of screening.ConclusionNew data supports NLST findings and show ongoing benefit to LDCT for lung cancer screening. Standardized LDCT screening classification has been shown to reduce harm and lower false positive rates. Further study is needed regarding use of risk-modeling. Screening will require an increase in the thoracic workforce to accommodate the amount of surgically operable cancers.     

Participation in breast cancer screening among breast cancer survivors –A nationwide register-based cohort study

The aim of this study was to analyse if breast cancer survivors without other breast imaging surveillance attend population-based screening differently than women not previously diagnosed with breast cancer. Further, to analyse if any differences depended on the women’s age and years since previous cancer diagnosis.The study was a register-based retrospective cohort study of all women invited to participate in the national breast cancer screening programme in 2015–2016. Participation rates were calculated for breast cancer survivors without breast imaging within 21 months (2–4 years, 4–6 years, 6–10 years and more than 10 years after diagnosis) and for women without previous breast cancer. Relative differences in participation rates between the two groups were calculated.A total of 679,990 women were included in the study (2.6% breast cancer survivors).For breast cancer survivors, participation rates increased with increasing number of years since the previous cancer diagnosis peaking at 80.3% if the cancer diagnosis was more than 10 years ago. For women with no previous breast cancer, participation rate was 80.3%.The relative difference in participation was highest close to the breast cancer diagnosis and for the youngest women participation rates remained lower among breast cancer survivors even more than 10 years after the diagnosis.In conclusion, regardless of age and years since previous breast cancer diagnosis, breast cancer survivors had lower or similar participation rates than women with no previous cancer diagnosis. This indicated that as many as one fifth of the breast cancer survivors are at risk of inadequate surveillance.     

胆囊癌切除范围研究进展

胆囊癌是胆道系统最常见的恶性肿瘤，早期诊断困难，恶性程度高，易发生转移和复发。以手术为主的综合治疗是改善胆囊癌病人生存的唯一方法，但仍存在若干争议，如T2期是否需要行肝段切除、扩大根治术是否可以延长晚期胆囊癌病人的生存时间、各期胆囊癌淋巴结清扫范围等。结合术中所见、病理学检查等判断胆囊癌的肿瘤分期，并依据分期规范切除范围和淋巴结清扫是提高R0根治切除率的关键，且扩大根治术可以改善晚期病人的预后。     

Factores de riesgo para el desarrollo de complicaciones tras tratamiento quirúrgico del carcinoma broncopulmonar

IntroductionThe most suitable treatment in most early-stage lung cancer patients is surgical resection. Despite previously assessing each patient's status being relevant to detect possible complications inherent to surgery, no consensus has been reached on which factors are “high risk” in such patients. Our study aimed to analyse the morbidity and the mortality incidence associated with this surgery in our setting with a multicentre study and to detect risk parameters.MethodsA prospective analysis study with 3,307 patients operated for bronchopulmonary carcinoma in 24 hospitals. Study variables were age, TNM, gender, stage, smoking habit, surgery approach, surgical resection, ECOG, neoadjuvant therapy, comorbidity, spirometric values, and intraoperative and postoperative morbidity and mortality. A multivariate logistic regression analysis of the morbidity and mortality predictor factors was done.ResultsWe recorded 34.2% postoperative morbidity and 2.1% postoperative mortality. Gender, myocardial infarction, angina, ECOG ≥1, COPD, DLCO <60%, clinical pathological status, surgical resection and surgery approach were shown as morbidity and mortality predictor factors in lung cancer surgery in our series.ConclusionsThe main variables to consider when assessing the lung cancer patients to undergo surgery are gender, myocardial infarction, angina, ECOG, COPD, DLCO, clinical pathological status, surgical resection and surgery approach.     

肺癌合并糖尿病患者围术期护理体会

目的分析肺癌合并糖尿病患者在围术期内的护理措施与护理体会。方法选择该院2018年1—12月收治的64例肺癌合并糖尿病患者,对其护理过程的资料进行回顾性分析。所有患者均接受严格的围术期护理,除了基本的日常管理和血糖监测以外,重视患者的术前干预、术中并发症控制与术后康复指导。手术结束后分析患者并发症产生情况。结果该次研究结果表明,患者的术后空腹血糖值(6.1±0.1)mmol/L与餐后2 h血糖值(8.0±0.2)mmol/L均处于较为正常的水平,而64例患者当中只有3例患者出现了肺部感染,1例患者出现了伤口愈合不佳问题,其余60例患者围术期状态都比较良好,无严重并发症产生,说明了大部分患者经过围术期护理都能保障手术成功率,从根源上降低了手术病死率。结论肺癌合并糖尿病患者的围术期护理需要严格按照患者需求展开,控制患者的情绪与预后恢复的过程。     

The relative risk of noncervical high-risk human papillomavirus-related (pre)malignancies after recurrent cervical intraepithelial neoplasia grade 3: A population-based study

Women with cervical intraepithelial neoplasia grade 3 (CIN3) have a long-lasting increased risk for noncervical high-risk human papillomavirus (hrHPV)-related (pre)malignancies. The aim of our study was to estimate this risk in women with recurrent CIN3 compared to women without a history of CIN3 and women with a single episode of CIN3. Women with a CIN3 diagnosis between 1990 and 2010 were obtained from the Dutch Pathology Registry (PALGA) and matched with a control group of women without CIN3. Analysis has been conducted in a subset of women with recurrent CIN3, defined as reoccurrence minimally 2 years post-treatment. Cases of noncervical hrHPV-related (pre)malignancies of the anus, vulva, vagina and oropharynx were identified until 2015 and incidence rate ratios (IRRs) were estimated. Then, 1,797 women with recurrent CIN3 were included with a median age of 34 years (range 18–76) and 31,594 person-years of follow-up. Women with recurrent CIN3 had an increased risk of developing noncervical hrHPV-related (pre)malignancies compared to women without CIN3 with an IRR of 25.96 (95%CI 6.32–106.58). The IRR was 2.48 (95% CI 1.87–3.30) compared to women with a single episode of CIN3. Studies on posttreatment follow-up and prophylactic hrHPV vaccination are warranted.     

Tryptophanyl-tRNA Synthetase Sensitizes Hormone Receptor-Positive Breast Cancer to Docetaxel-Based Chemotherapy

PurposeA relatively low response to chemotherapy has been reported for hormone receptor (HR)-positive breast cancer. In this study, we investigated the role of tryptophanyl-transfer RNA synthetase (WARS) in the chemotherapeutic response of HR-positive breast cancer.MethodsPre-chemotherapeutic needle biopsy samples of 45 HR-positive breast cancer patients undergoing the same chemotherapeutic regimen were subjected to immunohistochemistry. To investigate the biological functions of WARS in HR-positive breast cancer, we conducted cell viability assay, flow cytometry analysis, caspase activity assay, Quantitative real-time polymerase chain reaction, and western blotting using WARS gene-modulated HR-positive breast cancer cells (T47D, ZR-75-1, and MCF7).ResultsWARS overexpression in HR-positive breast cancer patients showed a significant correlation with favorable chemotherapy response. Downregulation of WARS increased cell viability following docetaxel treatment in tumor cell lines. On the other hand, WARS overexpression sensitized the therapeutic response to docetaxel. Additionally, downregulation of WARS caused a decrease in the number of apoptotic cell populations by docetaxel. Poly (ADP-ribose) polymerase cleavage and caspase 3/7 activity were increased in docetaxel-treated tumor cells with WARS overexpression.ConclusionOur results suggest that WARS might be a potential predictor for chemotherapy response in patients with HR-positive breast cancer as well as a novel molecular target to improve chemosensitivity.     

加味黄连解毒汤灌肠辅助治疗重症肺炎合并胃肠功能障碍临床研究

目的:观察加味黄连解毒汤灌肠辅助治疗重症肺炎痰热壅肺证合并胃肠功能障碍的临床疗效。方法:选取64例重症肺炎痰热壅肺证合并胃肠功能障碍患者,依据不同的治疗方法分为治疗组和对照组,每组32例。对照组给予抗菌药、胃肠功能保护药、机械通气等对症治疗,治疗组在对照组基础上联合加味黄连解毒汤灌肠治疗。比较2组临床疗效、治疗前后中医证候积分及血清降钙素原(PCT)水平,记录不良反应发生情况。结果:治疗组总有效率93.75%,高于对照组的71.88%,差异有统计学意义(P<0.05)。治疗后,2组中医证候积分均较治疗前降低,治疗组中医证候积分比对照组下降更明显,差异均有统计学意义(P<0.05)。治疗3天与治疗7天,治疗组PCT水平均低于对照组,差异均有统计学意义(P<0.05)。治疗期间,治疗组发生不良反应5例,对照组发生不良反应4例,未经处理均自行缓解。结论:加味黄连解毒汤灌肠辅助治疗重症肺炎痰热壅肺证合并胃肠功能障碍,可以有效减轻患者的临床症状,改善胃肠功能,抑制炎症反应。     

Myeloproliferative neoplasms in adolescents and young adults

Myeloproliferative neoplasms (MPNs) are clonal stem cell disorders commonly diagnosed in the seventh decade of life. With increasing access to blood surveillance, the number of adolescent and young adults (AYAs) diagnosed with MPNs is increasing. AYAs represent a unique cohort of MPN patients with differing challenges and psychosocial needs. The majority of AYA patients are females diagnosed with essential thrombocythaemia and most are asymptomatic at diagnosis. There is a striking predisposition to venous thrombotic events with a significant number experiencing splanchnic venous thrombosis (up to 70% of venous events). When compared to older patients, AYAs appear to have an indolent disease course. Interferon is the preferred cytoreductive agent in this population; indications for commencing treatment mirror those of older adults and are determined by the presence of high-risk features for thromboembolic events.