目的  分析对肺癌化学治疗（化疗）患者采取个性化营养干预联合分级步行运动方案的应用价值。方法   将郑州大学附属郑州中心医院2023年7月—2024年7月符合标准的198例肺癌化疗患者作为研究对象，通过随机数字表法分为观察组和对照组各99例。对照组仅采用个性化营养干预方案，观察组则联合分级步行运动方案，两组患者均在同一时间内入组并接受持续干预3个月。对两组干预前后癌因性疲乏［Piper疲乏修订量表（PFS-R）］、营养状况、睡眠质量［匹茨堡睡眠质量指数（PSQI）］、生活质量［生活质量评估量表（SF-36）］水平予以比较。结果  相较于对照组，干预后观察组PFS-R、PSQI评分较低，白蛋白、前白蛋白、血红蛋白、铁转蛋白水平和SF-36评分较高（P＜0.05）。结论  对肺癌化疗患者采取个性化营养干预联合分级步行运动方案，有利于促进其癌因性疲乏的减轻和营养状态、睡眠质量及生活质量水平的提高。

       Objective  To analyze the effects of personalized nutritional intervention combined with graded walking exercise treatment on cancer-related fatigue and quality of life in lung cancer patients during chemotherapy．Methods  A total of 198 lung cancer patients undergoing chemotherapy who met the criteria in our hospital from July 2023 to July 2024 were selected as the research subjects．They were divided into an observation group and a control group，with 99 cases in each group，by the random number table method．The control group only received individualized nutritional intervention，while the observation group received graded walking exercise additionally．Both groups of patients were enrolled at the same time and received continuous intervention for three months．Cancer-related fatigue（Piper’s Fatigue Scale-Revised［PFS-R］），nutritional status，sleep quality（Pittsburgh Sleep Quality Index［PSQI］），and quality of life（Quality of Life Scale［SF-36］） before and after the intervention were compared between the two groups．Results  Compared with the control group，the observation group had lower PFS-R and PSQI scores and higher albumin，prealbumin，hemoglobin，transferrin levels and SF-36 scores after the intervention（P＜0.05）．Conclusions  Adopting personalized nutritional intervention combined with graded walking exercise for lung cancer patients during chemotherapy is beneficial to promote the reduction of cancer-caused fatigue and the improvement of their nutritional status，sleep quality and quality of life．

       目的   探讨营养评估及炎症因子水平对非霍奇金淋巴瘤（NHL）患者化学治疗（化疗）后感染及平均住院日的影响。方法   回顾性分析接受R-CHOP治疗的NHL患者95例。通过受试者工作特征（ROC）曲线确定患者主观整体营养评估（PG-SGA）预测患者化疗后感染的界值。将患者分为PG-SGA＜4组与PG-SGA≥4组，比较两组间营养及炎症相关指标的差异。采用单因素与多因素回归分析NHL患者化疗后感染及平均住院日延长的危险因素。结果  ROC曲线显示PG-SGA为3.5时，约登指数最大，预测NHL患者化疗后感染灵敏度为92%，特异度为11.1%。PG-SGA≥4组患者平均年龄、国际预后指数（IPI）及Ann arbor Ⅲ~Ⅳ期比例均高于PG-SGA＜4组（P＜0.05）。与PG-SGA＜4组相比，PG-SGA≥4组患者白介素6（IL-6）及中性粒细胞与淋巴细胞比值（NLR）明显升高，且化疗后感染率及平均住院日≥5 d比例高于对照组（P＜0.05）；与对照组相比，PG-SGA＜4组患者前白蛋白、白蛋白和血红蛋白水平升高（P均＜0.05）。多因素回归分析显示，PG-SGA≥4及合并糖尿病是NHL患者化疗后感染率的独立危险因素（P均＜0.05）。白蛋白低于35 g/L及合并化疗后感染是NHL患者平均住院日延长的独立危险因素（P均＜0.05）。结论   基于PG-SGA的营养评估及炎症因子分析对NHL患者化疗后感染及平均住院日的预测具有临床指导意义。

       Objective  To explore the effects of nutritional assessment and inflammatory factor levels on post-chemotherapy infections and length of hospital stay in patients with non-Hodgkin’s lymphoma（NHL）．Methods  A total of 95 NHL patients treated with the R-CHOP regimen were retrospectively analyzed．The  cut-off  value  of  Patient-Generated  Subjective Global Assessment （PG-SGA） for post-chemotherapy infection in NHL patients was evaluated by Receiver Operating Characteristic（ROC）curves．Patients were categorized into PG-SGA＜4 and PG-SGA≥4 groups and compared for differences of nutritional and inflammation-related factors．Univariate and multivariate logistic regression were used to analyze the risk factors for post-chemotherapy infection and length of hospital stay（LHS）．Results  The ROC curve showed that the Youden index was largest at PG-SGA of 3.5，which predicted post-chemotherapy infection in NHL patients with a sensitivity of 92% and a specificity of 11.1%．The mean age，International Prognostic Index（IPI），and Ann Arbor stage Ⅲ~IV proportion in patients with PG-SGA≥4 were higher compared with the control（P＜0.05）．Patients with PG-SGA≥4 had significantly higher interleukin-6 and neutrophil-to-lymphocyte ratio（NLR），and the infection rate and the proportion of LHS≥5 days after chemotherapy were higher than those in the control group（P＜0.05）．Patients in the PG-SGA＜4 group had significantly higher prealbumin，albumin，and hemoglobin levels compared to the PG-SGA≥4 group（P＜0.05）．Multifactorial logistic regression analysis revealed that PG-SGA≥4 and combined diabetes mellitus were independent risk factors for post-chemotherapy infection rate in NHL patients（both P＜0.05）．Albumin less than 35 g/L and combined post-chemotherapy infection were independent risk factors for prolonged LHS in NHL patients（both P＜0.05）．Conclusions  PG-SGA nutritional assessment and inflammatory factor analysis are clinically instructive in predicting post-chemotherapy infections and LHS in NHL patients．

目的 探讨卵巢癌化学治疗（化疗）耐药与焦孔素E（GSDME）基因的甲基化是否有关, 以及地西他滨是否可以通过去甲基化使GSDME蛋白表达水平升高从而逆转卵巢癌化疗耐药。方法 顺铂逆浓度梯度构建SKOV-3卵巢癌耐顺铂细胞株（SKOV-3/DDP）; CCK8法检测耐药前后细胞株的半抑制浓度（IC₅₀）; 实时荧光定量甲基化特异性PCR法检测两组细胞中GSDME基因的甲基化水平; Wetern Blot检测两组细胞中GSDME的表达水平。将耐药细胞株用不同质量浓度的地西他滨处理,重复上述实验, 检测地西他滨处理前后细胞的IC₅₀、GSDME基因的甲基化水平及GSDME蛋白的表达程度。结果 与SKOV-3细胞相比, SKOV-3/DDP中GSDME基因的甲基化水平升高（P<0.01）, 同时GSDME蛋白的表达水平降低（P<0.001）; 随着地西他滨作用浓度的升高, 耐药细胞中GSDME基因的甲基化程度逐渐降低, 蛋白的表达水平逐渐升高, 细胞的IC₅₀逐渐降低：在用0.5 μg/mL地西他滨处理耐药细胞后GSDME基因的甲基化水平虽然降低（P<0.01）, 但是此时蛋白的表达水平及耐药细胞的IC₅₀均无明显改变（P>0.05）; 当地西他滨的浓度增加到1.0 μg/mL时蛋白的表达水平才明显升高（P<0.05）, 而此时细胞的IC₅₀仍未见明显降低（P>0.05）; 待药物浓度达到1.5 μg/mL时, 细胞的IC₅₀才表现出明显的下降趋势（P<0.05）。结论 GSDME的表达与卵巢癌的化疗耐药密切相关, GSDME的高甲基化水平致使其低表达可促进卵巢癌的化疗耐药。但地西他滨可以通过去甲基化使卵巢癌耐药细胞中GSDME的表达水平升高, 从而增加卵巢癌细胞对化疗药物的敏感性, 进而逆转卵巢癌化疗耐药。

Objective To explore whether drug resistance in ovarian cancer is associated with gasdermin E（GSDME） methylation, and to explore whether decitabine can reverse ovarian cancer chemoresistance by increasing GSDME protein expression levels through demethylation．Methods The cisplatin-resistant cell line（SKOV-3/DDP）was constructed by inverse concentration gradient of cisplatin．Semi-inhibitory concentration（IC₅₀）of cell lines after drug resistance was detected using the CCK8 assay．Real-time fluorescence quantitative methylation-specific PCR was used to detect the methylation level of GSDME gene in the two groups of cells．Wetern Blot was used to detect the expression level of GSDME in the two groups of cells．Drug-resistant cell lines were treated with different concentrations of the demethylating drug decitabine．Experiments above were repeated to detect the methylation degree of IC₅₀ and GSDME genes and the expression level of GSDME protein in drug-resistant cells before and after decitabine treatment．Results Compared with SKOV-3 cells, the methylation level of GSDME gene in SKOV-3/DDP was significantly increased（P<0.01）, while the expression level of GSDME protein was significantly decreased（P<0.001）．With the increase of decitabine concentration, the methylation degree of GSDME gene in drug-resistant cells was gradually decreased, the expression level of protein was gradually increased, and the IC₅₀ of cells was gradually decreased：the methylation level of GSDME gene was decreased after 0.05 μg/mL decitabine treatment（P<0.01）, but there were no significant changes in protein expression level and IC₅₀ of drug-resistant cells（P>0.05）．The protein expression level was significantly increased when the concentration of local citabine was increased to 0.10 μg/mL（P<0.05）, while the IC50 of the cells was not significantly decreased（P>0.05）．When the drug concentration reached 0.15 μg/mL, he IC₅₀ of the cells showed a significant downward trend（P<0.05）．Conclusions The expression of GSDME is closely related to chemoresistance in ovarian cancer, and the low expression of GSDME due to its high methylation level can promote chemoresistance in ovarian cancer．However, decitabine can increase the expression level of GSDME in drug-resistant ovarian cancer cells through demethylation,thereby increasing the sensitivity of ovarian cancer cells to chemotherapeutic drugs, and then reversing the chemoresistance of ovarian cancer．

目的 研究靶向NKG2A抑制剂抗头颈部鳞状细胞癌（HNSCC）的作用。方法 应用GEO和TCGA数据库分析NKG2A及其配体HLA-E单细胞表达情况、与患者预后以及免疫微环境的相关性。构建HNSCC皮下抑制瘤模型,流式细胞技术检测化学治疗（化疗）对免疫检测点NKG2A表达的影响。动物实验验证NKG2A抑制剂以及NKG2A抑制剂联合多西他赛化疗的抗肿瘤作用。结果 NKG2A（KLRC1）主要表达在NK细胞,少量表达在T淋巴细胞。HNSCC肿瘤高表达NKG2A/HLA-E（P<0.01）,与患者不良预后密切相关;肿瘤微环境中NKG2A/HLA-E与多个免疫细胞浸润以及免疫检测点表达密切相关（P<0.01）。动物实验显示化疗能上调T、B淋巴细胞表达免疫检查点NKG2A的表达水平（P<0.01）;化疗的基础上联合NKG2A抑制剂能更有效地介导抗肿瘤作用（P=0.013）。结论 化疗基础上联合NKG2A抑制剂能更有效地介导抗肿瘤作用,为探索HNSCC临床新策略提供实验和理论基础。

Objective To investigate the anti-tumor effects of NKG2A inhibitor on head and neck squamous cell carcinoma（HNSCC）．Methods The single-cell expression of NKG2A ,its ligand HLA-E and their correlations with patient prognosis and immune microenvironment were analyzed in GEO and TCGA databases．The subcutaneous tumor model of HNSCC was constructed,and the effects of chemotherapy on the expression of NKG2A on T and B lymphocytes were detected by flow cytometry．Animal experiments were used to confirmed the anti-tumor effects of NKG2A inhibitor and NKG2A inhibitors combined with docetaxel．Results NKG2A（KLRC1）was mainly expressed in NK cells,and a small amount was expressed in T lymphocytes．The high expression of NKG2A/HLA-E in HNSCC tumors（P<0.01）were closely related to poor prognosis．NKG2A/HLA-E in tumor microenvironment were closely related to the infiltration of multiple immune cells and the expression of immune checkpoints（P<0.01）．Animal experiments showed that chemotherapy could up-regulate the expression of NKG2A in T and B lymphocytes（P<0.01）．Chemotherapy in combination with NKG2A inhibitor could mediate more effective antitumor effects in HNSCC（P=0.013）．Conclusions Combined with NKG2A inhibitor on the basis of chemotherapy can mediate more effective anti-tumor effects,and this study may provide experimental and theoretical basis for exploring new clinical strategies of HNSCC．

目的 探讨80例局部宫颈癌根治性同步放化疗的临床疗效及预后影响因素。方法 选取鹤壁市妇幼保健院2018年1月—2021年1月收治的80例宫颈癌患者进行回顾性分析,患者依照其病变程度均采取积极的手术与同步放化疗,其中40例患者采取单纯化疗,将其分为化疗组,40例患者采取同步放化疗,将其分为同步放化疗组,分析其近远期临床疗效与不良反应发生率。对所有患者进行3年随访,将患者分为两个亚组,即预后不良组（n=20）和预后良好组（n=60）,对比两组患者一般临床特征,应用Logistic回归模型分析局部宫颈癌根治性同步放化疗的预后影响因素。结果 同步放化疗组ORR、DCR高与化疗组（P<0.05）,对照组中位无进展生存期为5.4（2.38~14.52）个月。观察组中位无进展生存期为6.66（2~20.1）个月,观察组高于对照组（χ²=4.536,P=0.041）;同步放化疗组盆腔积液、阴道炎症、泌尿生殖道反应、直肠反应、骨髓抑制、胃肠道反应发生率略高于化疗组,但两组对比差异无统计学意义（P>0.05）;预后良好组与预后不良组患者年龄、是否绝经、病理类型、肿瘤大小对比差异无统计学意义（P>0.05）,预后良好组与预后不良组患者临床分期、组织分化程度、淋巴结转移、是否同步放化疗、治疗前血红蛋白水平对比差异有统计学意义（P<0.05）;组织分化程度低、未同步放化疗、治疗前血红蛋白水平低为局部宫颈癌的预后不良影响因素（P<0.05）。结论 对局部宫颈癌患者采取根治性同步放化疗与单一化疗相比可提升其临床疗效与远期生存率,同时安全性较高。组织分化程度低、未同步放化疗、治疗前血红蛋白水平低为宫颈癌预后不良影响因素。

Objective To explore the clinical efficacy and prognostic factors of 80 cases of local cervical cancer treated with radical synchronous radiotherapy and chemotherapy．Methods A retrospective analysis was conducted on 80 cervical cancer patients admitted to Hebi Maternal and Child Health Hospital from January 2018 to January 2021．Patients underwent surgery and synchronous radiotherapy and chemotherapy according to their degree of lesion．Among them,40 patients received simple chemotherapy and were divided into a chemotherapy group,while 40 patients received synchronous radiotherapy and chemotherapy and were divided into a synchronous radiotherapy and chemotherapy group．The short-term and long-term clinical efficacy and incidence of adverse reactions were analyzed．A 3-year follow-up was conducted on all patients,and patients were divided into two subgroups,namely the poor prognosis group（n=20）and the good prognosis group（n=60）．The general clinical characteristics of the two groups of patients were compared,and a Logistic regression model was used to analyze the prognostic factors of local cervical cancer radical synchronous radiotherapy and chemotherapy．Results The objective relief rate and disease control rate of the synchronous radiotherapy and chemotherapy group were significantly higher than those of the chemotherapy group（P<0.05）,and the median progression free survival of the control group was 5.4（2.38-14.52）months．The median progression free survival of the observation group was 6.66（2-20.1）months,which was higher than that of the control group（χ²=4.536,P=0.041）．The incidence of pelvic fluid accumulation,vaginitis,urogenital reactions,rectal reactions,bone marrow suppression,and gastrointestinal reactions in the synchronous radiotherapy and chemotherapy group was slightly higher than that in the chemotherapy group,but there was no statistically significant difference between the two groups（P>0.05）．There was no statistically significant difference in age,menopause,pathological type,and tumor size between the patients with good prognosis and those with poor prognosis（P>0.05）．However,there was a statistically significant difference in clinical stage,tissue differentiation,lymph node metastasis,synchronous radiotherapy and chemotherapy,and pre-treatment hemoglobin levels between the patients with good prognosis and those with poor prognosis（P<0.05）．Low degree of tissue differentiation,lack of synchronous radiotherapy and chemotherapy,and low hemoglobin levels before treatment were adverse prognostic factors for local cervical cancer（P<0.05）．Conclusion sCompared with single radiotherapy,radical synchronous radiotherapy and chemotherapy can improve the clinical efficacy and long-term survival rate of patients with local cervical cancer,with higher safety．The severe tissue differentiation,unsynchronized chemoradiotherapy and hemoglobin before treatment were the adverse prognostic factors of cervical cancer．

目的 分析非小细胞肺癌化疗患者骨髓抑制发生状况及其影响因素。方法 回顾性分析2017年2月—2019年8月期间本院进行化疗治疗的80例非小细胞肺癌患者临床资料,统计非小细胞肺癌化疗患者骨髓抑制发生情况,并根据其情况分组;收集所有患者临床资料,分析非小细胞肺癌化疗患者骨髓抑制发生的相关影响因素。结果 80例非小细胞肺癌化疗患者中发生骨髓抑制45例,发生率为56.25%;经单因素及多项Logistic回归分析,年龄≥60岁、化疗方案为紫杉醇联合铂类,TNM分期在Ⅲ-Ⅳ期,发生骨转移是非小细胞肺癌化疗患者发生骨髓抑制的影响因素(OR＞1,P＜0.05)。结论 年龄≥60岁、化疗方案为紫杉醇联合铂类,TNM分期在Ⅲ-Ⅳ期,发生骨转移会增加非小细胞肺癌化疗患者骨髓抑制的发生风险,临床上可据此来制定合理的干预措施,以降低患者骨髓抑制的发生风险。

Objective To analyze the occurrence and influencing factors of bone marrow suppression in patients with non-small cell lung cancer (NSCLC) undergoing chemotherapy. Methods The clinical data of 80 patients with NSCLC who received chemotherapy in our hospital from February 2017 to August 2019 were retrospectively analyzed, the occurrence of bone marrow suppression in patients with NSCLC under chemotherapy was enrolled and grouped according to the situation; the clinical data of all patients were collected, the related influencing factors of bone marrow suppression in patients were analyzed. Results Among 80 cases of patients with NSCLC, 45 cases occurred bone marrow suppression, the incidence was 56.25%; after univariate and multivariate Logistic regression analysis, age ≥ 60 years old, chemotherapy of paclitaxel combined with platinum, TNM stage in stage III -IV, the occurrence of bone metastasis were the influencing factors of bone marrow suppression in patients with NSCLC under chemotherapy (OR>1, P<0.05). Conclusions Age ≥ 60 years old, chemotherapy of paclitaxel combined with platinum, TNM stage in stage III -IV, the occurrence of bone metastasis will increase the risk of bone marrow suppression in patients with NSCLC chemotherapy. Therefore, reasonable intervention measures can be carried out to reduce the risk.

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 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.