目的 探析化疗联合调强放疗（IMRT）治疗老年（≥65岁）局部晚期鼻咽癌的临床效果。方法 选取2018年1月—2019年1月我院诊治的90例老年局部晚期鼻咽癌患者为研究对象,使用随机数表法将此90例患者分为观察组及对照组,各45例。观察组行IMRT,对照组行化疗联合IMRT,对比2组的效果。结果 2组的治疗总有效率均为100%,组间差异不显著（P<0.05）。观察组的生活质量改善率（93.33%）高于对照组（77.78%）（P<0.05）。对照组出现3~4级白细胞减少、呕吐、黏膜炎人数明显高于观察组（P<0.05）,两者其他毒副反应比较无显著差异（P>0.05）。观察组的1年总体生存率（91.11%）及3年总体生存率（75.56%）均高于对照组（86.67%、68.89%）（P<0.05）。结论 对于老年局部晚期鼻咽癌,化疗联合IMRT相比单纯IMRT降低了远期生存率,增加了毒副反应并影响疗后生活质量的改善,不宜常规应用,单纯IMRT可能是更合适的治疗选择。

Objective To explore the clinical effect of chemotherapy combined with intensity modulated radiation therapy（IMRT）in the treatment of elderly（≥65 years old）locally advanced nasopharyngeal carcinoma．Methods The study was carried out from January 2018 to January 2019．During this period,90 elderly patients with locally advanced nasopharyngeal carcinoma who were diagnosed and treated in our hospital were selected as the research objects．The random number table method was used to divide the 90 patients into observation groups,and the control group,each with 45 cases．The observation group was treated with IMRT,and the control group was treated with chemotherapy combined with IMRT．The effects of the two groups were compared．Results The total effective rate of the two groups was 100%,and there was no significant difference between the two groups（P<0.05）．The improvement rate of quality of life in the observation group（93.33%）was higher than that in the control group（77.78%,P<0.05）．The number of grade 3-4 leukopenia,vomiting and mucositis in the control group was significantly higher than that in the observation group（P<0.05）,and there was no significant difference in other side effects between the two groups（P>0.05）．The 1-year overall survival rate（91.11%）and 3-year overall survival rate（75.56%）of the observation group were higher than those of the control group（86.67%,68.89%,P<0.05）．Conclusions For locally advanced nasopharyngeal carcinoma in the elderly,chemotherapy combined with IMRT reduces the long-term survival rate,increases the toxic and side effects and affects the improvement of the quality of life after treatment．It is not suitable for routine application,and IMRT alone may be a more appropriate treatment choice.

目的 评价银杏二萜内酯葡胺注射液（DGMI）联合依达拉奉右崁对急性缺血性脑卒中（AIS）的治疗效果。方法 回顾性分析我院2021年3月—2022年6月收治的86例AIS患者,根据治疗方法不同,分为单药组和联合组,每组43例,2组均予以DGMI治疗,联合组加用依达拉奉右崁醇。对比2组的治疗效果。结果 治疗后,联合组美国国立卫生研究院卒中量表（NIHSS）评分低于单药组（P<0.05）,简易智能精神状态检查量表（MMSE）和Barthel指数（BI）得分高于单药组（P<0.05）;联合组治疗后脑血流动力学指标（Q_min和V_min）高于单药组（P<0.05）,而全血还原黏度、血浆黏度和血小板聚集指数低于单药组（P<0.05）;联合组治疗后血清丙二醛（MDA）、超敏C-反应蛋白（hsCRP）和白细胞介素-6（IL-6）低于单药组（P<0.05）,而超氧化物歧化酶（SOD）高于单药组（P<0.05）;联合组治疗总有效率88.37%,高于单药组的67.44%（P<0.05）,且2组不良反应总发生率比较差异无统计学意义（P>0.05）。结论 DGMI联合依达拉奉右崁醇可有效提高AIS患者的神经功能、认知功能及日常生活能力,降低血液高凝状态,改善脑部血流,缓解机体氧化应激及炎症反应,且不良反应发生率较低,安全性良好。

Objective To evaluate the clinical efficacy of diterpene ginkgolides meglumine injection（DGMI）combined with edaravone dextracanthol in the treatment of acute ischemic stroke（AIS）．Methods A total of 86 patients with AIS admitted to our hospital from March 2021 to June 2022 were divided into single drug group and combination group according to different treatment methods,with 43 patients in each group．Both groups were treated with DGMI,and the combination group was added with edaravone dextracanthol．The therapeutic effect,neurological function and adverse reactions of the two groups were compared．Results After treatment,compared with the single drug group,the NIH Stroke Scale（NIHSS）score of the combination group was significantly lower（P<0.05）,and the Mini-Mental State Examination（MMSE）and Barthel index（BI）scores were significantly higher（P<0.05）．After treatment,the cerebral hemodynamic indexes（Q_min and V_min）in the combination group were significantly higher（P<0.05）,while the whole blood reducing viscosity,plasma viscosity and platelet aggregation index were significantly lower（P<0.05）．After treatment,compared with the single drug group,the serum malondialdehyde（MDA）,high sensitive C-reactive protein（hsCRP）and interleukin- 6（IL-6）levels in the combination group were significantly lower（P<0.05）,while the level of superoxide dismutase（SOD）was significantly higher（P<0.05）．The total effective rate of the combination group was 88.37%,which was significantly higher than 67.44% of the single drug group（P<0.05）．The incidence of adverse reaction between two groups was not significant（P>0.05）．Conclusions DGMI combined with edaravone dextracanthol can effectively improve the neurological function,cognitive function and daily living ability of patients with AIS,reduce blood hypercoagulability,improve cerebral blood flow,alleviate oxidative stress and inflammatory reaction,improve the therapeutic effect,without increasing the incidence of adverse reactions,which has good safety．

目的 分析不同年龄、不同季节河源市源城区呼吸道感染的病原学情况,指导临床用药。方法 回顾性研究2020年3月—2022年2月2 468例呼吸道感染的住院患儿,取咽部分泌物送广州达安临床检验中心进行呼吸道核酸六项检测并分析结果。包括：肺炎链球菌（Sp）、呼吸道合胞病毒（RSV）、卡他莫拉菌（MC）、流感嗜血杆菌（Hi）、肺炎支原体（LP）、腺病毒（ADV）。结果 （1）2 468例患儿的标本中阳性率52.8%,其中RSV最高,其他依次为Sp、Hi、MC、MP、ADV。而混合感染仅次于RSV。（2）婴儿组和幼儿组以RSV感染为主,在学龄前组和学龄组儿童中,以Sp感染为主,各病原体的混合感染组合很多,一种细菌合并一种病毒多见。（3）秋冬季是河源市源城区呼吸道感染的高发季节,RSV是秋冬季呼吸道感染最主要的病原体。结论 秋冬季节为河源市源城区呼吸道感染的高发季节,RSV为该季节的主要病原体。RSV也是婴幼儿组感染的主要致病菌,随着年龄增大,细菌感染导致的呼吸道疾病逐渐占优势。混合感染在各年龄组中均占比较高,值得临床诊疗的重视。

Objective To analyze the etiology of respiratory tract infection in Yuancheng District of Heyuan City ,which was in different ages and seasons,and to provide guidance of clinical drug usage．Methods Cases of 2 468 hospitalized children with respiratory tract infection from March 2020 to February 2022 were analyzed．The secretion from pharynx was collected and sent to Guangzhou Da’an Clinical Examination Center for six respiratory nucleic acid tests and then the results were analyzed,including Streptococcus pneumoniae（Sp）,respiratory syncytial virus（RSV）,Moraxella catarrhalis（MC）,Haemophilus influenzae（Hi）,Mycoplasma pneumonia（MP）,adenovirus（ADV）．Results The positive rate of 2 468 hospitalized children with respiratory tract infection was 52.8%,of which the highest was RSV,followed by Sp,Hi,MC,MP,ADV．Meanwhile the mixed infection rate was second to RSV．RSV infection was the main infection in infant group and early-aged children group,while in preschool group and school-aged group,Sp infection was the main infection．There were many mixed infection of pathogen,and one bacteria combined with one virus was more common．Respiratory tract infection had high incidence in autumn and winter in Yuancheng District of Heyuan City,RSV was the major pathogen．Conclusions Autumn and winter were the seasons with high respiratory tract infection incidence in Yuancheng District of Heyuan City,and RSV was the main pathogen in these two seasons．RSV was also the main pathogen of infant group infection．But with the increase of children’s age,bacterial infection became the main reason of respiratory tract diseases．Mixed infection accounts for a high proportion in all age groups,which should be valued in clinical diagnosis and treatment．

目的 分析后循环脑梗死（PCCI）患者椎基底动脉狭窄和血清生化指标的相关性。方法 对100例PCCI患者的临床资料进行回顾性分析,依照椎基底动脉狭窄程度将患者分为不稳定斑块组（n=35）、稳定斑块组（n=36）和无斑块组（n=29）。对比3组患者临床一般情况,血清神经细胞因子水平,血清炎症因子水平,并分析PCCI患者椎基底动脉狭窄和血清生化指标的相关性。结果 3组患者再次发病情况与NIHSS评分对比差异有统计学意义,不稳定斑块组高于其他2组（P<0.05）,但稳定斑块组与无斑块组比较差异无统计学意义（P>0.05）;3组患者脑源性神经营养因子（BDNF）、神经元特异性烯醇化酶（NSE）、中枢神经特异蛋白（S100β）水平对比差异有统计学意义,不稳定斑块组BDNF低于稳定斑块组与无斑块组,不稳定斑块组NSE、S100β高于稳定斑块组与无斑块组（P<0.05）,但稳定斑块组与无斑块组对比无差异（P>0.05）;3组患者血清C反应蛋白（CRP）、白细胞介素-37（IL-37）、肿瘤坏死因子（TNF-α）、血管细胞黏附分子-1（VCAM-1）、细胞间黏附分子-1（ICAM-1）、人软骨糖蛋白40（YKL-40）水平对比有差异,不稳定斑块组高于其它2组（P<0.05）,但稳定斑块组与无斑块组比较差异无统计学意义（P>0.05）;Pearson直线相关分析显示,椎基底动脉狭窄与BDNF呈负相关,与NSE、S100β、CRP、IL-37、TNF-α、VCAM-1、ICAM-1、YKL-40呈正相关（P<0.05）;多因素 Logistic 回归分析结果显示,BDNF、NSE、ICAM-1、YKL-40是椎基底动脉狭窄的独立危险因素（P<0.05）。结论 PCCI患者椎基底动脉狭窄程度越严重,再次发病率越高,对患者的神经功能影响越严重。同时血清相关神经细胞因子水平和炎症因子水平与椎基底动脉狭窄严重程度具有明显相关性,其中BDNF、NSE、ICAM-1、YKL-40可作为PCCI患者椎基底动脉狭窄预测的重要指标,因此临床上可以通过监测患者的血清相关生化指标为临床诊断及预后判断提供参考依据。

Objective To investigate the correlation between vertebrobasilar artery stenosis and serum biochemical indexes in patients with posterior circulation cerebral infarction（PCCI）．Methods One hundred patients with PCCI admitted to our hospital were selected as the study objects,and the clinical data of all patients were retrospectively analyzed．The patients were divided into unstable plaque group（n=35）,stable plaque group（n=36）and no plaque group（n=29）according to the degree of vertebrobasilar artery stenosis．The general clinical conditions,serum levels of neurocytokines and inflammatory factors of the patients were compared,the correlation between vertebrobasilar artery stenosis and serum biochemical indicators in patients with PCCI was analyzed．Results The recurrence and NIHSS score of the 3 groups were significantly different,the unstable plaque group was significantly higher than the other 2 groups（P<0.05）,but there was no significant difference between the stable plaque group and the no plaque group（P>0.05）．The levels of brain-derived neurotrophic factor（BDNF）,neuron-specific enolase（NSE）and central nerve specific protein（S100β）in the three groups were significantly different．BDNF in unstable plaque group was lower than that in stable plaque group and no plaque group,while NSE and S100β in unstable plaque group were higher than that in stable plaque group and no plaque group（P<0.05）．There was no significant difference between stable plaque group and no plaque group（P>0.05）．The levels of serum C-reactive protein（CRP）,interleukin-37（IL-37）,tumor necrosis factor-α（TNF-α）,vascular cell adhesion molecule-1（VCAM-1）,intercellular adhesion molecule-1（ICAM-1）and human cartilage glycoprotein 40（YKL-40）in 3 groups were significantly different．The unstable plaque group was higher than the other two groups（P<0.05）,but there was no significant difference between the stable plaque group and the no plaque group（P>0.05）．Pearson Line correlation analysis showed that vertebrobasilar artery stenosis was negatively correlated with BDNF,and positively correlated with NSE,S100β,CRP,IL-37,TNF-α,VCAM-1,ICAM-1,YKL-40（P<0.05）．Multivariate Logistic regression analysis showed that BDNF,NSE,ICAM-1 and YKL-40 were independent risk factors for vertebrobasilar artery stenosis（P<0.05）．Conclusions The more severe degree of vertebrobasilar artery stenosis in patients with PCCI,the higher recurrence rate and more serious the impact on the neurological function of patients．At the same time,the levels of serum related neurocytokines and inflammatory factors were significantly related to the severity of vertebrobasilar artery stenosis．BDNF,NSE,ICAM-1 and YKL-40 can be used as important indicators to predict the severity of vertebrobasilar artery stenosis in patients with PCCI．Therefore,monitoring the patient’s serum biochemical indicators of angiography can provide reference for clinical diagnosis and prognosis judgment．

目的 评估全身免疫炎症指数（SII）、中性粒细胞/淋巴细胞比值（NLR）和血小板/淋巴细胞比值（PLR）在区分急性缺血性卒中（AIS）伴发卵圆孔未闭（PFO）与非伴发PFO患者的价值。方法 回顾性分析100例AIS患者的血液和血清指标,计算SII、NLR和PLR,使用Logistic回归及受试者操作特征（ROC）曲线分析3项指标在鉴别AIS伴发PFO与非伴发PFO中的价值。结果 伴发PFO的AIS患者SII、NLR、PLR高于非伴发PFO的AIS患者,其中以SII最为明显（P均<0.05）。单因素Logistic回归显示,中性粒细胞计数、淋巴细胞计数、PLR、NLR、SII与AIS伴发PFO有关（P<0.05）。ROC曲线分析结果,SII、NLR、PLR鉴别AIS伴PFO与非伴PFO患者,最佳阈值分别为476.4、1.99、115.3,曲线下面积分别为0.777、0.767、0.708。结论 SII、NLR和PLR可作为鉴别AIS患者是否伴发PFO的生物标志物,具有潜在临床应用价值。

Objective To evaluate the value of systemic immune-inflammatory index（SII）,neutrophil/lymphocyte ratio（NLR）and platelet/lymphocyte ratio（PLR）in distinguishing acute ischemic stroke（AIS）patients with patent foramen ovale（PFO）and without PFO．Methods A retrospective analysis of blood and serum indicators in 100 AIS patients was conducted,and SII,NLR and PLR indices were calculated．Logistic regression and ROC curve analyses were performed．Results SII,NLR and PLR were significantly higher in PFO patients than in non-PFO patients,with SII being the most significant．Univariate logistic regression showed that Neu,Lym,PLR,NLR,and SII variables were significantly associated with AIS combined with PFO（P<0.05）．ROC curve analysis revealed that the optimal cut-off values for SII,NLR and PLR in distinguishing AIS patients with PFO from those without PFO were 476.4,1.99 and 115.3,respectively,with area under the curve of 0.777,0.767 and 0.708．Conclusions SII,NLR and PLR can serve as biomarkers for identifying AIS patients with PFO,offering potential clinical application value．

目的 统计分析Ⅲ型食管闭锁与食管气管瘘(esophageal atresia and tracheoesophageal fistula,EA-TEF)术后气管食管瘘复发(recurrent tracheoesophageal fistula,RTEF)的高危因素,并计算高危因素预测RTEF的能力。方法 回顾分析2015年9月—2021年1 月我院EA-TEF患儿的临床资料,并根据术后是否气管食管瘘复发分成复发组(recurrent组,R组)及无复发组(not recurrent组,NR组),比较两组患儿的基本情况、开放手术或胸腔镜手术、手术时间、气管食管瘘结扎方式等术中情况,统计分析RTEF的高危因素,分析其预测RTEF的能力。结果 研究期间共纳入Ⅲ型食管闭锁患儿154例,男98例,女56 例,R组11例,NR组143例,单因素对比分析R组与NR组患儿除吻合口瘘外其余均无统计学差异,其中R组吻合口瘘6人,占该组54.55%;NR组13人,占该组9.10%,P<0.001;Logistic回归模型调整后可见有吻合口瘘相对于无吻合口瘘发生RTEF的风险增加12倍(OR=12.000,95%CI:3.216~44.771)。结论 RTEF与患儿基本情况、术中情况无关,与吻合口瘘显著相关,且有吻合口瘘的患儿出现RTEF风险是无吻合口瘘患儿的12倍。

Objective To statistical analyze the high-risk factors of recurrent tracheoesophageal fistula (RTEF) after the repair of type Ⅲ esophageal atresia and tracheoesophageal fistula (EA-TEF),and evaluate the ability of these high-risk factors predicting RTEF. Methods Retrospectively analyzed the clinical data of children with type Ⅲ EA-TEF in our hospital from September 2015 to January 2021. Patients were divided into two groups (recurrent and non-recurrent group,R and NR group) according to whether there was RTEF. The general situation of those patients, situation during surgery like open or thoracoscopic surgery,operation time,method of tracheoesophageal fistula ligation were compared. Those factors of two groups were analyzed, the high-risk factors of RTEF were summarized, and Logistic regression analysis on the high-risk factors was performed to analyze the ability of predicting RTEF. Results A total of 154 infants with type Ⅲ EA-TEF were included in the study, 98 males, 56 females. There were 11 cases in R group, 143 cases in NR group. Univariate comparative analysis was carried out on R group and NR group, and no statistical differences were found except in anastomotic fistula. There were 6 patients in R group with anastomotic fistula, accounting for 54.55%, and 13 patients in NR group, accounting for 9.10%,P< 0.001. After adjusting the Logistic regression model with the high-risk factors, there was 12-fold increase in the risk of RTEF with anastomotic fistula (OR=12.000, 95%CI: 3.216~44.771) compared with no anastomotic fistula. Conclusion RTEF was not related to patients' general situation or surgery situation, but significantly related to anastomotic fistula. Patients who with anastomotic fistula had a 12-fold increase in the risk of RTEF compared with no anastomotic fistula.

目的 评估基于NRS2002系统的多学科营养支持对直肠癌放化疗患者的作用。方法 选取2017年2月—2020年2月我院收治的96例直肠癌放化疗患者作为研究对象,根据入院建档顺序不同分2组,每组48例,对照组接受常规护理,观察组接受基于NRS2002系统的多学科营养支持。比较2组干预前后主观全面评定法(PG-SGA)评分、营养指标[前白蛋白(prealbumin, PA)、血清白蛋白(serum albumin, SA)、转铁蛋白(transferrin, TF)]、癌因性疲乏、生存质量(FLIC评分)。结果 干预后观察组营养状况优于对照组(P＜0.05);干预后观察组SA、PA、TF高于对照组(P＜0.05);干预后观察组癌因性疲乏低于对照组(P＜0.05);干预后观察组生存质量FLIC各维度评分高于对照组(P＜0.05)。结论 基于NRS2002系统的多学科营养支持有助于改善直肠癌放化疗患者营养状态,减轻癌因性疲乏,提升生存质量水平。

Objective To evaluate the efficacy of multidisciplinary nutritional support through NRS2002 system on patients undergoing radiotherapy and chemotherapy with rectal cancer. Methods From February 2017 to February 2020, 96 cases of rectal cancer patients undergoing radiotherapy and chemotherapy in our hospital were selected as the research objects, which were divided into two groups according to the order of filing, 48 cases in each group. The control group received routine nursing, and the observation group received multidisciplinary nutritional support through NRS2002 system. The PG-SGA score, nutritional indexes [prealbumin (PA), serum albumin (SA), transferrin (TF)], cancer-related fatigue and quality of life (FLIC score) were compared between two groups before and after intervention. Results After the intervention, the nutritional status of the observation group was better than that of the control group (P<0.05). The SA, PA, TF of the observation group were higher than those of the control group (P<0.05). The cancer-related fatigue of the observation group was lower than that of the control group (P<0.05), and the FLIC score of the observation group was higher than that of the control group (P<0.05). Conclusion Multidisciplinary nutritional support through NRS2002 system was helpful to improve nutritional status of patients, reduce cancer-related fatigue and improve quality of life of patients with rectal cancer undergoing radiotherapy and chemotherapy.

目的 比较冷冻前和复苏后脐带血样本的造血功能,探讨冷冻袋附属小管是否可用于脐带血质量控制及移植供体发放前复核。方法 选取2009年3月—2021年2月在广州脐血库冻存的53份脐带血为研究对象,常规复温后,从冷冻袋和附属小管抽取样本,分为冷冻前、小管复苏和大袋复苏组。评价各组的总有核细胞(total nucleated cells,TNCs)数、细胞活率、CD34阳性细胞数量、粒-巨噬细胞集落(colony-forming units-granulocyte/macrophages, CFU-GMs)数量、祖细胞集落(colony-forming units, CFUs)数量等质量参数。结果 小管复苏后TNCs数量、细胞活率、CFU-GMs数量及CFUs数量较冷冻前均显著减少,差异有统计学意义(P＜0.05),而二者的CD34阳性细胞数量差异无统计学意义(P＞ 0.05);大袋复苏后TNCs数量、细胞活率及CFUs数量较冷冻前各相应值比较,差异有统计学意义(P＜0.05),而二者的CD34阳性细胞数量及CFU-GMs数量差异无统计学意义(P＞ 0.05);小管复苏后的TNCs数量、细胞活率、CD34阳性细胞活率、CFU-GMs数量及CFUs数量较大袋复苏后的相应值均减少,差异有统计学意义(P＜0.05),而二者的CD34阳性细胞数量差异无统计学意义(P＞ 0.05)。小管复苏与大袋复苏后的各项参数存在高度相关性。结论 附属小管在一定程度上可作为脐血库质量控制和产品发放前复核的取材。

Objective To compare the hematopoietic function of cord blood before and after cryopreservation, and to explore whether sampling from the attached segment can be used for quality control of cord blood units and confirmatory testing before transplantation. Methods A total of 53 cryopreserved cord blood units from March 2009 to February 2021 in Guangzhou Cord Blood Bank were enrolled in this study. After routine thawing, samples were taken from main bag and its attached segment. They were divided into pre-freezing, post-thawing segment and post-thawing main bag groups. Total nucleated cells (TNCs), cell viability, CD34 positive cells, colony-forming units-granulocyte/macrophages(CFU-GMs)and colony-forming units (CFUs) were examined. Results The number of TNCs [(1.12±0.38)×10⁹], cell viability [(79.11±7.71)%], the number of CFU-GMs [(5.55±4.58)×10⁵] and the number of CFUs [(15.11±9.68)×10⁵] were significantly decreased in samples from post-thawing attached segments compared with those pre-freezing(P＜0.05), but there was no significant difference in the number of CD34 positive cells between two groups (P＞0.05). The number of TNCs [(1.25±0.40)×10⁹], cell viability [(84.75±5.89)%] and CFUs [(18.61±6.42)×10⁵] in samples from post-thawing main bags were significantly different from those pre-freezing (P＜0.05), but there were no significant differences in the number of CD34 positive cells and CFU-GMs between them (P＞0.05). The number of TNCs, cell viability, CD34 positive cell viability, the numbers of CFU-GMs and CFUs were significantly decreased in post-thawing segments compared with those in main bags after thawing (P＜0.05), but there was no significant difference in the number of CD34 positive cells between the two groups (P＞0.05). Spearman correlation analysis showed that the parameters of samples from main bag and its attached segment were highly correlated after thawing. Conclusion Cord blood from attached segment could be quality control sample for cord blood bank and confirmatory testing before product release in some degree.

目的 探究老年食管鳞癌患者单纯放疗、同步放化疗临床治疗效果。方法 选我院2018年1月—2020年12月期间90例老年食管鳞癌患者为研究对象,依据不同治疗方式将其分为对照组、观察组,各45例,分别接受单纯放疗、同步放化疗治疗,比较2组治疗效果及治疗安全性。结果 观察组治疗总有效率为75.56%,与对照组60.00%相近(P＞0.05);观察组疾病控制率为97.78%,较对照组84.44%高(P＜0.05);观察组放射性肺炎、骨髓抑制发生率为24.44%、77.78%,较对照组6.67%、48.89%高;且观察组放射性肺炎、骨髓抑制、放射性食管炎2级占比分别为17.78%、35.56%、57.78%,均较对照组2.22%、8.89%、24.44%高(P＜0.05)。结论 在老年食管鳞癌患者治疗中,与单纯放疗相比,同步放化疗可提升疾病控制能力,但会增加治疗不良反应,增加不良反应严重程度,因此在临床治疗中,需慎重选择。

Objective To explore the clinical effect of radiotherapy only and concurrent chemoradiotherapy in elderly patients with esophageal squamous cell carcinoma. Methods Ninety cases of elderly patients with esophageal squamous cell carcinoma in our hospital from January 2018 to December 2020 were selected as research objects.According to different treatment methods, they were divided into control group and observation group, 45 cases in each group.They were treated with radiotherapy and concurrent chemoradiotherapy respectively.The treatment effect and safety of the two groups were compared. Results The total effective rate of the observation group was 75.56%, which was close to the control group (60.00%, P>0.05). The disease control rate of the observation group was 97.78%, which was higher than control group (84.44%, P<0.05). The incidence of radiation pneumonia and bone marrow suppression of the observation group were 24.44% and 77.78%, which were higher than that of the control group (6.67%, 48.89%). The proportion of radiation pneumonia, bone marrow suppression, radiation esophagitis grade 2 of the observation group were 17.78%, 35.78% and 57.78% respectively, higher than that of the control group (2.22%, 8.89%, 24.44% respectively, P<0.05). Conclusion Compared with radiotherapy only, concurrent chemoradiotherapy improved the ability of disease control in elderly patients with esophageal squamous cell carcinoma, but it increased the adverse reactions and aggravated the severity of adverse reactions.Therefore, it is necessary to make a careful choice in clinical treatment.

目的 使用分层应变技术评价以mFOLFOX6化疗的结直肠癌患者左心室功能的变化。方法 收集30例病理确诊为结直肠癌患者,各位患者均采用mFOLFOX6(5-氟尿嘧啶+奥沙利铂+亚叶酸钙)化疗方案,以自身对照做研究,分别于化疗前、化疗中期、化疗后期行心脏超声检查,获取常规参数,并采集左心室心尖四腔、三腔、两腔切面、短轴二尖瓣、乳头肌、心尖切面的三维动态图像,获取左心室的心肌心内膜下、中层、心外膜下心肌的纵向应变(GLSendo、GLSmid、GLSepi)及左心室心肌心内膜下、中层、心外膜下圆周应变(GCSendo、GCSmid、GCSepi)的数值,计算△GLS(△GLS=GLSendo-GLSepi),△GCS(△GCS=GCSendo-GCSepi),并比较这些数值的绝对值在化疗前后的变化。结果 无论化疗前还是化疗后,各层心肌均有跨壁梯度的存在。与化疗前相比:化疗后各层心肌应变参数的绝对值均降低,GLSendo和GCSendo、ΔGLS下降更为显著(P<0.05),其中,GLSendo的ROC曲线下面积为0.766,P<0.001,选25.3%为诊断界点,灵敏度为83.3%,特异度为70%;ΔGLS的ROC曲线下面积为0.749,P<0.001,选4.1%为诊断界点,灵敏度为76.7%,特异度为73.3%。结论 心肌分层应变技术有助于早期发现mFOLFOX6致结直肠癌患者左心室各层心肌功能的变化,GLSendo、ΔGLS是该技术中较为敏感的指标。

Objective To evaluate the changes of left ventricular function in patients with colorectal cancer treated with mFOLFOX6 using layer-specific strain analysis. Methods The data of 30 patients with pathologically diagnosed with colorectal cancer were collected. All patients were treated with mFOLFOX6 (5-fluorouracil+oxaliplatin+calcium leucovorin) chemotherapy. The self-control study was carried out before, during, and after chemotherapy, and cardiac ultrasound was performed to obtain conventional parameters, and three-dimensional dynamic images of the left ventricular apex four-chamber, three-chamber, two-chamber section, short-axis mitral valve, papillary muscle, and apical sectionare were acquired. The longitudinal strain of the three layer of myocardium (GLSendo、GLSmid、GLSepi) and the circumferential strain of myocardium (GCSendo、GCSmid、GCSepi) were collected, and △GLS (△GLS=GLSendo-GLSepi), △GCS (△GCS=GCSendo-GCSepi) were calculated, and the absolute values of these indexes before and after chemotherapy were compared. Results No matter before or after chemotherapy, there was a transmural gradient in each layer of myocardium. Compared with those before chemotherapy, the absolute values of myocardial strain parameters of each layer were reduced after chemotherapy, and GLSendo and GCSendo and ΔGLS decreased more significantly (P<0.05),while the area under the ROC curve of GLSendo was 0.766, P<0.001.Selecting 25.3% as the diagnostic boundary, the sensitivity was 83.3%, and the specificity was 70%.The area under the ROC curve of ΔGLS was 0.749, P<0.001. Selecting 4.1% as the diagnostic boundary, the sensitivity was 76.7%, and the specificity was 73.3%. Conclusions The myocardial layer-specific strain analysis is helpful for early detection of changes in the myocardial function of the left ventricle, which caused by mFOLFOX6 in patients with colorectal cancer. GLSendo and ΔGLS are sensitive indicators in this technique.