目的 探讨责任制助产护理模式配合体位管理对高龄产妇分娩方式及产程的影响。方法 选择2023年6月—12月医院接收的高龄产妇68例进行研究，按照护理方式分为两组各34例，对照组为常规助产护理，观察组为责任制助产护理模式配合体位管理，比较两组分娩方式、产程、疼痛程度及护理满意度。结果 观察组阴道分娩率为76.47%（26例），高于对照组52.94%（18例），剖宫产率为8.82%（3例），低于对照组29.41%（10例）（χ2分别为4.121、4.660，均P＜0.05）。观察组第一产程（6.25±0.50）h、第二产程（0.79±0.21）h、总产程（7.15±0.63）h、宫口开大3 cm、10 cm时的疼痛程度（4.12±1.08）分、（6.29±1.25）分明显低于对照组（7.01±0.62）h、（0.96±0.30）h、（8.11±1.07）h、（7.84±1.45）分、（9.09±0.74）分（t分别为5.563、2.706、4.508、11.997、11.239，均P＜0.05）。观察组的护理满意度为97.06%（33例），比对照组的76.47%（26例）高（χ2=4.610，P=0.031）。结论 高龄产妇展开责任制助产护理模式配合体位管理可促进自然分娩，并缩短产程，减轻产时疼痛程度，降低剖宫产率，提高护理满意度。

Objective To explore the effect of responsibility midwifery nursing model combined with position management on delivery mode and labor process of elderly parturient．Methods A total of 68 cases of elderly pregnant women admitted to the hospital from June to December 2023 were selected,and they were divided into two groups according to the nursing mode,34 cases in each group．The control group was given routine midwifery nursing,and the observation group was given responsible midwifery nursing mode combined with position management．The methods of delivery,labor process,pain degree and nursing satisfaction of the two groups were compared．Results The vaginal delivery rate was 76.47%（26 cases）in the observation group,which was higher than 52.94%（18 cases）in the control group,and the cesarean section rate was 8.82%（3 cases）in the observation group,which was lower than 29.41%（10 cases）in the control group（χ²=4.121 and 4.660,P=0.042 and 0.030）．The pain degree of the first stage of labor（6.25±0.50）h,the second stage of labor（0.79±0.21）h,the total stage of labor（7.15±0.63）h,the pain degree of the cervical dilation 3 cm,10 cm in the observation group were significantly lower than those in the control group[（7.01±0.62）h,（4.12±1.08）points,（6.29±1.25）points vs （0.96±0.30）h,（8.11±1.07）h,（7.84±1.45）score,（9.09±0.74）score（t=5.563,2.706,4.508,11.997,11.239,P<0.05）．The nursing satisfaction of the observation group was 97.06%（33 cases）,which was higher than 76.47%（26 cases）of the control group（χ²=4.610,P=0.031）．Conclusion sResponsibility midwifery nursing mode combined with position management can promote natural childbirth,shorten the labor process,reduce the pain during labor,reduce the rate of cesarean section,and improve nursing satisfaction in elderly women,which is worthy of promotion．

目的 探讨风险防范护理干预对颅内动脉瘤介入术后患者血管并发症的应用。方法 选取天津市人民医院2020年6月—2023年10月收治的80例颅内动脉瘤患者,应用随机数字表法将其分为观察组与对照组,各40例。所有患者均采取血管内介入栓塞术治疗,对照组患者实施常规护理,观察组患者在对照组基础上增加风险防范护理干预。对比两组患者干预前后负面情绪变化、术后并发症发生率、干预前后生活质量变化以及护理满意度。结果 干预后,两组焦虑、抑郁评分降低,观察组分别为（39.78±1.80）（44.73±3.78）分,低于对照组的（54.63±3.91）（49.23±4.14）分,对比差异有统计学意义（t=21.823、5.078,P<0.05）;观察组术后并发症发生率低于对照组（7.50% vs 27.50%,χ²=5.541,P=0.019）;干预后两组中文版明尼苏达心功能不全生命质量（MLHFQ）相关维度评分均升高,且观察组分别为（30.73±3.82]（21.13±2.70）（27.08±4.28）分,高于对照组的（26.20±3.50）（17.20±2.79）（23.20±2.35）分,对比差异有统计学意义（t=5.530、6.389、5.021,P<0.05）;观察组护理满意度高于对照组（92.50% vs 72.50%,χ²=5.541,P=0.019）。结论 颅内动脉瘤介入术后采取风险防范护理干预可改善患者焦虑、抑郁情绪,降低术后并发症,改善患者术后生活质量,患者护理满意度较高。

Objective To investigate the application effect of risk prevention nursing intervention on vascular complications in patients with intracranial aneurysms after interventional surgery．Methods Eighty patients with intracranial aneurysm admitted in Tianjin People’s Hospital from June 2020 to October 2023 were selected and divided into observation group and control group with 40 cases each．All the patients were treated with endovascular interventional embolization,the control group patients underwent routine care,and the observation group patients added risk prevention nursing intervention on the basis of the control group．The negative mood changes before and after the intervention,the incidence of postoperative complications,the quality of life before and after the intervention,and nursing satisfaction were compared between the two groups．Results After the intervention,the anxiety and depression scores in both groups decreased,and the observation group[（39.78±1.80）and （44.73±3.78）] scores were lower than the control group[（54.63±3.91）and（49.23±4.14）] scores,significantly（t=21.823,5.078,P<0.05）．The postoperative complication rate was significantly lower than the control group（7.50% vs 27.50%,χ²=5.541,P=0.019）．After the intervention,MLHFQ related dimension scores were increased in both groups,and the observation group（30.73±3.82,21.13±2.70 and 27.08±4.28）scores were higher than the control group（26.20±2.50,17.20±2.79 and 23.20±2.35）scores,statistically significant（t=5.530,6.389,5.021,P<0.05）．The nursing satisfaction was higher than the control group（92.50% vs 72.50%,χ²=5.541,P=0.019）．Conclusion sRisk prevention nursing intervention after intracranial aneurysm intervention can improve patient anxiety and depression,assist in reducing the incidence of postoperative complications,improve patient quality of life,and increase patient satisfaction with nursing．

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 探讨高分辨率低剂量CT（HRLDCT）在无症状健康体检者筛查肺部疾病和肺外病变的应用价值。方法 回顾性分析于2011年1月—2021年12月在广州市第一人民医院行胸部HRLDCT检查的1 940例无症状健康体检者的影像学资料,由两位研究者分别评估和记录所有受检者的每一个阳性CT病征征象,分析各个阳性CT征象在总受检人群中的检出情况、各个阳性CT征象在性别、年龄分层中的分布情况,以及肺外阳性CT征象检出情况。比较肺癌和肺良性结节在不同性别、不同年龄段分布中的检出情况。结果 共有1 831例受检者存在阳性CT征象,总检出率为94.38%,共检出3 339个阳性CT征象。检出率最高的阳性CT征象是肺部良性结节（1 630例,84.02%）。在973例男性受检者中,检出肺癌22例（2.26%）,肺良性结节 815例（83.73%）;在967例女性受检者中,检出肺癌19例（1.96%）,肺良性结节815例（84.28%）,肺癌与肺良性结节在不同性别间的检出率比较差异无统计学意义（P=0.64,χ²=0.214）。肺部阳性CT征象的检出率随年龄的增长而升高,肺癌与肺良性结节最多见于51~60岁受检人群中,两者在51~60岁和61~70岁中的检出率比较差异有统计学意义（P=0.038,χ²=4.32）。此外,检出最多的肺外其他阳性CT征象为脂肪肝,共497例（25.62%）,其次是冠状动脉钙化173例（8.90%）。结论 HRLDCT在胸部的健康体检中可同时用于肺部疾病的筛查及发现肺外异常征象,具有较高的临床应用价值。

Objective To investigate the application value of high-resolution low-dose CT（HRLDCT）in screening for lung diseases and extra-pulmonary lesions in asymptomatic healthy individuals．Methods A retrospective analysis was performed on the images of 1 940 asymptomatic healthy individuals who underwent chest HRLDCT examination in our hospital from January 2011 to December 2021．Two investigators conducted independent evaluations and recordings of each positive CT sign in all individuals．An analysis of the detection rates of positive CT signs in the entire population,examining their distribution across various gender and age groups was involved in this study．The detection of positive CT signs outside the lung was also investigated．Additionally,the comparative analysis of lung cancer and benign pulmonary nodules detection across various genders and age cohorts were performed．Results A comprehensive count of 1831 individuals exhibited positive CT signs,resulting in an overall detection rate of 94．38%,with identifying a total of 3339 positive CT signs．The positive CT sign with the highest detection rate was benign pulmonary nodule（1 630 cases,84.02%）．In 973 male participants,22 cases of lung cancer were detected（2.26%）,and 815 cases of benign lung nodules were found（83.73%）．In 967 female participants,19 cases of lung cancer were detected（1.96%）,and 815 cases of benign lung nodules were identified（84.28%）．Statistical analysis revealed no significant difference in the detection rates of lung cancer and benign lung nodules between genders（P=0.64,χ²=0.214）．The prevalence of positive CT signs in the lungs demonstrates an upward trend with advancing age．Notably,individuals aged 51-60 exhibit a higher incidence of lung cancer and benign lung nodules．A statistically significant disparity in the detection rates of these conditions is observed between the 51-60 and 61-70 age cohorts（P=0.038,χ²=4.32）．In addition,the most frequently detected extrapulmonary positive CT findings were fatty liver,with a total of 497 cases（25.62%）,followed by coronary artery calcification with 173 cases（8.90%）．Conclusion sHRLDCT can be effectively employed in the screening of pulmonary conditions and identification of extra-pulmonary abnormalities during thoracic health assessments,demonstrating considerable clinical significance．

目的 探讨本体感觉训练联合等速肌力训练对早期膝骨关节炎（KOA）患者的应用效果。方法 选择郑州市骨科医院2022年5月—2023年5月收治的120例早期膝骨关节炎患者为研究对象,将所有对象进行编号,采用简单随机方法分成研究组和对照组,每组各60例,两组均接受常规治疗,对照组在此基础上接受等速肌力训练,研究组在对照组基础上联合应用本体感觉训练,比较两组治疗前和治疗6周后疼痛视觉模拟量表（VAS）评分、膝关节伸屈肌群峰力矩（PT）、关节功能以及本体感觉。结果 治疗后研究组VAS评分为（1.33±0.31）分,对照组为（2.05±0.34）分,研究组低于对照组（t=12.121,P<0.05）;治疗后两组膝关节伸、屈肌群PT均较治疗前明显增加（P<0.05）,研究组大于对照组（t₁=2.696,t₂=3.360,P<0.05）;治疗后研究组WOMAC评分为（24.58±5.14）分,对照组为（26.85±5.11）分,研究组低于对照组（t=2.426,P<0.001）,研究组Lequesne指数为（6.55±1.21）分,对照组为（7.02±1.25）分,研究组低于对照组（t=2.093,P<0.001）;治疗后研究组平均轨迹误差为（21.35±5.96）%,对照组为（24.06±5.88）%,研究组改善程度优于对照组（t=2.507,P<0.001）,研究组平均负重力量差为（0.77±0.22）kg,对照组为（1.01±0.24）kg,研究组改善程度明显优于对照组（t=5.710,P<0.001）。结论 本体感觉训练联合等速肌力训练可以显著提升早期膝骨关节炎患者肌力,改善关节功能和本体感觉作用明显,适合推广。

Objective To explore the application effect of proprioceptive training combined with isokinetic muscle strength training on early knee osteoarthritis（KOA）patients．Methods A total of 120 patients with early knee osteoarthritis admitted to a hospital from May 2022 to May 2023 were selected as the study subjects．All subjects were numbered and randomly divided into an experimental group and a control group,with 60 cases in each group．Both groups received routine treatment,while the control group received isokinetic muscle strength training additionally．The experimental group received proprioceptive training in addition to the control group treatment．After 6 weeks of treatment,compare the pain situation,peak torque（PT）of knee extensor and flexor muscles,joint function,and proprioception before and after treatment between two groups were compared．Results After treatment,the VAS scores of both groups were lower than those before treatment（P<0.05）,and the experimental group was lower than the control group（t=12.121,P<0.05）．After treatment,the PT of the knee joint extensor and flexor muscle groups in both groups significantly increased compared to before treatment（P<0.05）,and the experimental group was significantly larger than the control group（P<0.05）．After treatment,the WOMAC score and Lequesne index of the two groups significantly decreased compared to those before treatment（P<0.05）,and the experimental group was smaller than the control group（P<0.05）．After treatment,the average trajectory error and average weight difference between the two groups were significantly smaller than those before treatment（P<0.05）,while the experimental group was smaller than the control group（P<0.05）．Conclusion sThe combination of proprioceptive training and isokinetic muscle strength training can significantly improve muscle strength,joint function,and proprioceptive sensation in patients with early knee osteoarthritis,making it suitable for promotion．

目的 探究应用高频振荡通气（HFOV）模式下早期肺表面活性物质干预对呼吸窘迫综合征致重度呼吸衰竭患儿转归的影响。方法 选取南阳医学高等专科学校第一附属医院2020年6月—2022年12月收治的120例呼吸窘迫综合征致重度呼吸衰竭患儿作为研究对象,按照随机数字表法将其分为对照组与研究组各60例,对照组行常规通气联合早期肺表面活性物质干预,研究组行HFOV联合早期肺表面活性物质干预,对比两组患儿临床症状、血气指标、肺功能指标、患儿转归分析、并发症以及临床疗效。结果 研究组患儿症状消失时间为（31.28±10.24）h、呼吸机辅助通气时间为（50.13±15.81）h以及住院天数为（12.47±5.48）d,对照组患儿症状消失时间为（59.91±11.56）h,呼吸机辅助通气时间为（91.17±25.47）h及住院天数为（20.11±9.45）d,研究组低于对照组（P<0.05）;治疗后,研究组患儿PaO₂为（77.89±9.10）mmHg,PaCO₂为（41.09±8.25）mmHg,氧合指数为（432.18±37.81）mmHg,对照组患儿PaO₂为（65.28±8.16）mmHg,PaCO₂为（49.71±8.91）mmHg,氧合指数为（258.64±56.74）mmHg,研究组PaO₂、氧合指数高于对照组,且PaCO₂低于对照组（P<0.05）;治疗后,研究组患儿体重潮气量（TV）为（7.68±2.16）mL/kg,达峰容积比（TPEF/TE）为（34.19±4.06）%,达峰时间比（VPEF/VE）为（33.47±3.42）%,对照组患儿TV为（6.64±2.01）mL/kg,TPEF/TE为（28.66±3.81）%,VPEF/VE为（28.95±3.10）%,研究组高于对照组（P<0.05）;研究组患儿支气管肺发育不良（BPD）为11.66%,对照组为13.33%,两组患儿BPD发生率比较差异无统计学意义（P>0.05）;研究组IVH为3.33%、ROP为5.00,对照组脑室内出血（IVH）为8.33%,早产儿视网膜病（ROP）为11.66%,研究组低于对照组（P<0.05）;研究组患儿并发症发生率为6.66%,对照组患儿并发症发生率为20.00%,研究组低于对照组（P<0.05）;研究组患儿总有效率为96.66%,对照组患儿总有效率为83.33%,研究组高于对照组（P<0.05）。结论 HFOV模式下早期肺表面活性物质干预呼吸窘迫综合征致重度呼吸衰竭患儿效果显著,改善患儿呼吸功能与血气指标,并发症较少。

Objective To investigate the effect of early intervention with pulmonary surfactant under HFOV mode on the outcome of severe respiratory failure in children with respiratory distress syndrome．Methods A total of 120 children with severe respiratory failure caused by respiratory distress syndrome admitted to our hospital from June 2020 to December 2022 were selected as the study subjects．They were randomly divided into a control group and a study group of 60 cases each using a random number table method．The control group received routine ventilation combined with early pulmonary surfactant intervention,while the study group received HFOV combined with early pulmonary surfactant intervention．Symptom disappearance,ventilator-assisted ventilation,hospital stay,blood gas indicators,lung function indicators,analysis of pediatric outcomes,complications,and clinical efficacy were compared between the two groups．Results The time of symptom disappearance was（31.28±10.24）h,the duration of ventilator assisted ventilation was（50.13±15.81）h and the number of days in hospital was（12.47±5.48）d in the study group,while the time of symptom disappearance was（59.91±11.56）h,the duration of ventilator assisted ventilation was（91.17±25.47）h and the number of days in hospital was（20.11±9.45）d in the control group,which were higher than those in the study group（P<0.05）．After treatment,PaO₂ was （77.89±9.10）mmHg,PaCO₂ was （41.09±8.25）mmHg and oxygenation index was （432.18±37.81）mmHg in the study group,while PaO₂ was （65.28±8.16）mmHg,PaCO₂ was （49.71±8.91）mmHg and oxygenation index was （258.64±56.74）mmHg in the control group．The PaO₂ and oxygenation index of the study group were higher than those of the control group,and the PaCO₂ was lower than that of the control group（P<0.05）．After treatment,TV in the study group was （7.68±2.16）mL/kg,TPEF/TE was （34.19±4.06）%,VPEF/VE was （33.47±3.42）%,and TV in the control group was （6.64±2.01）mL/kg,TPEF/TE was （28.66±3.81）%,VPEF/VE was （28.95±3.10）%．The study group was higher than the control group（P<0.05）．BPD was 11.66% in the study group and 13.33% in the control group．There was no significant difference in the incidence of BPD between the two groups（P>0.05）．The IVH and ROP of the study group were 3.33% and 5.00 respectively,while those of the control group were 8.33% and 11.66% respectively,which were lower in the study group（P<0.05）．The incidence of complications was 6.66% in the study group and 20.00% in the control group,which was lower in the control group（P<0.05）．The total effective rate was 96.66% in the study group and 83.33% in the control group,which was higher in the control group（P<0.05）．Conclusion sEarly intervention of pulmonary surfactant in children with severe respiratory failure caused by respiratory distress syndrome under HFOV mode has a significant effect,improving respiratory function and blood gas indicators,and reducing complications．

目的 构建并验证机械通气患儿肠内营养支持发生误吸的风险预测模型。方法 回顾性分析中山市博爱医院2021年3月—2023年3月儿童重症监护病房330例行机械通气并进行肠内营养的患儿临床资料,通过二元Logistic回归,获取机械通气患儿肠内营养支持发生误吸的预测因素,绘制列线图模型,并进行模型评价及验证。结果 330例机械通气患儿中,104例患儿发生误吸、226例未发生误吸。两组患儿在意识状态、机械通气方式、管饲量、胃残留量、胃管置入深度、促胃动力药、镇静剂等方面对比差异具有统计学意义（P<0.05）。二元Logistic结果显示,胃残留量、机械通气方式、管饲量、意识状态、胃管置入深度、促胃动力药、镇静剂是机械通气患儿肠内营养支持发生误吸的影响因素（P<0.05）。建模组AUC为0.810（95%CI：0.760~0.860）,Hosmer-Lemesh结果显示,χ²=3.245,P=0.846;外部验证组AUC为0.873（95%CI：0.831~0.914）,Hosmer-Lemesh结果显示,χ²=3.567,P=0.875。建模组和训练组DCA曲线大部分落于Y=0上方。建模组与外部验证组校准曲线均与参考曲线高度贴合,预测概率与实际概率接近,校准度良好。结论 基于胃残留量、机械通气方式、管饲量、意识状态、胃管置入深度、促胃动力药、镇静剂等7项指标构建的风险预测模型具有一定的临床价值,可作为医护人员识别肠内营养机械通气误吸高危患儿的工具。

Objective To establish and verify the risk prediction model of enteral nutritional aspiration in children with mechanical ventilation．Methods The clinical data of 330 children who underwent mechanical ventilation and enteral nutrition in the PICU of Zhongshan Boai Hospital from March 2021 to March 2023 were retrospectively analyzed．The independent predictive factors of enteral nutrition support aspiration in children with mechanical ventilation were obtained by binary Logistic regression,and the nomographic model was drawn,and the model was evaluated and verified. Results Among 330 children with mechanical ventilation,104 had aspiration and 226 did not．There were statistically significant differences between the two groups in consciousness state,mechanical ventilation mode,tube feeding amount,gastric residual amount,gastric tube insertion depth,gastric motivity drugs,sedatives,etc.（P<0.05）．Binary Logistic results showed that gastric residual amount,mechanical ventilation mode,tube feeding amount,state of consciousness,depth of gastric tube insertion,gastric motonics and sedatives were the influential factors of enteral nutritional aspiration in children with mechanical ventilation（P<0.05）．The AUC of the modeling group was 0.810（95%CI：0.760-0.860）,and the Hosmer-Lemesh result showed that χ²=3.245,P=0.846．The AUC of the external verification group was 0.873（95%CI：0.831-0.914）,and the Hosmer-Lemesh result showed that χ²=3.567,P=0.875．The DCA curves of modeling group and training group mostly were above Y=0．The calibration curves of the modeling group and the external verification group are highly fit to the reference curves,and the prediction probability was close to the actual probability,and the calibration degree was good．Conclusion sThe risk prediction model based on 7 indexes,including stomach residual amount,mechanical ventilation mode,tube feeding amount,state of consciousness,depth of gastric tube insertion,gastric motivity drug and sedative,with certain clinical value,and can be used as a tool for medical staff to identify children at high risk of enteral nutritional mechanical aspiration．

目的 探究单孔腹腔镜胆囊切除术（LC）治疗胆囊结石（GD）患者的效果。方法 回顾性收集2021年1月—2023年9月郑州大学附属郑州中心医院收治的96例GD患者病例资料,按手术方案不同分两组。以接受单孔LC治疗的48例患者列为A组,以接受三孔LC治疗的48例患者列为B组。对比两组围术期指标、手术前后胃肠激素指标[胃泌素（GAS）、胃动素（MTL）]、肝功能指标[天门冬氨酸转氨酶（AST）、丙氨酸氨基转移酶（ALT）]、疼痛介质指标[前列腺素E2（PGE-2）、5-羟色胺（5-HT）]水平、术后并发症发生率。结果 A组手术用时（71.56±6.29）min更长于B组（62.37±5.85）min,术后排气时间（15.37±2.26）h、住院用时（5.30±1.24）d、切口总长度（1.84±0.27）cm短于B组（17.49±3.55）h、（7.64±1.35）d、（4.13±0.35）cm,术中失血量（41.28±4.36）mL低于B组（58.31±6.52）mL更低（均P<0.001）;术后1 d A组GAS（113.34±13.47）pg/mL、MTL（202.78±24.68）pg/mL水平高于B组（102.65±11.08）pg/mL、（164.34±20.76）pg/mL（均P<0.001）;术后1d A组AST（31.82±3.62）U/L、ALT（40.36±4.74）U/L水平低于B组（38.78±4.03）U/L、（51.60±5.42）U/L（均P<0.001）;术后1 d A组SP（55.84±5.90）ng/L、5-HT（132.17±9.16）ng/mL、PGE-2（25.45±4.27）ng/mL水平低于B组（73.27±7.51）ng/L、（173.54±13.32）ng/mL、（31.71±5.24）ng/mL（均P<0.001）;A组并发症发生率2.08%（1/48）低于B组16.67%（8/48）更低。结论 与三孔LC治疗GD患者相比,经单孔LC治疗会略微延长手术用时,但能进一步减少术中失血量,降低术后并发症风险,缩短切口长度及患者康复进程,且对机体胃肠功能、肝功能影响更小,对机体造成疼痛应激更轻微,更符合微创特征。

Objective To explore the effect of single-incision laparoscopic cholecystectomy（LC）in the treatment of patients with gallstone disease（GD）．Methods Retrospective data of 96 GD patients in Zhengzhou Central Hospital Affiliated to Zhengzhou University（January 2021—September 2023）were collected and divided into two groups according to different surgical protocols．Forty-eight patients receiving single-incision LC were classified as group A,and 48 patients receiving three-port LC were classified as group B．The perioperative indexes,gastrointestinal hormone indexes[gastrin（GAS）,motilin（MTL）],liver function indexes[aspartate aminotransferase（AST）,alanine aminotransferase（ALT）],pain mediator indexes[prostaglandin E2（PGE-2）,5-hydroxytryptamine（5-HT）] before and after operation,and the incidence of postoperative complications were compared between the two groups．Results The operation time in group A was（71.56±6.29）min,which was longer than that in group B（62.37±5.85）min．In group A,the postoperative exhaust time was（15.37±2.26）h,hospitalization time was（5.30±1.24）d,and the total length of incision was（1.84±0.27）cm,which were shorter than those in group B[（17.49±3.55）h,（7.64±1.35）d,and（4.13±0.35）cm]．The intraoperative blood loss was（41.28±4.36）mL,which were lower than（58.31±6.52）mL in group B（all P<0.001）．The levels of GAS[（113.34±13.47）pg/mL] and MTL[（202.78±24.68）pg/mL] in group A were higher than those in group B[（102.65±11.08）pg/mL and（164.34±20.76）pg/mL]（all P<0.001）．The levels of AST[（31.82±3.62）U/L] and ALT[（40.36±4.74）U/L] in group A were lower than those in group B[（38.78±4.03）U/L and（51.60±5.42）U/L]（all P<0.001）．The levels of SP[（55.84±5.90）ng/L],5-HT[（132.17±9.16）ng/mL],pge-2[（25.45±4.27）ng/mL] in group A were lower than those in group B[（73.27±7.51）ng/L,（173.54±13.32）ng/mL and （31.71±5.24）ng/mL]（all P<0.001）．The incidence of complications in group A was 2.08%（1/48）,which was lower than that in group B[16.67%（8/48）]（χ²=4.414,P=0.036）．Conclusion sCompared with three-port LC for GD patients,single-incision LC can slightly prolong the operation time,but it can further reduce the intraoperative blood loss,reduce the risk of postoperative complications,shorten the incision length and the rehabilitation process of patients,and has less impact on the gastrointestinal function and liver function,causing less pain stress to the body,which is more in line with the characteristics of minimally invasive．

目的 探讨无痛消化内镜下高频电刀治疗对胃癌前病变的应用效果及复发率的影响。方法 选取甘肃医学院附属医院2017年1月—2020年1月收治的120例胃癌前病变患者进行回顾性分析,依照其手术治疗方案将其分为两组,各60例。对照组采取常规内镜黏膜下剥离术,观察组患者采取无痛消化内镜下高频电刀剥离治疗。对比两组的切除速度、切除面积、治愈性切除率、完全及整块切除率,对患者进行3年随访,记录其复发情况,并对比两组患者并发症情况。结果 两组的切除面积、治愈性切除率、完全切除率及整块切除率对比差异无统计学意义（P>0.05）,观察组切除速度为（27.34±8.58）mm²/min,高于对照组的（15.54±4.52）mm²/min,差异有统计学意义（P<0.05）。两组患者术后3年的总复发率（28.33% vs 30.00%）对比差异无统计学意义（P>0.05）。观察组感染、穿孔等相关并发症发生率为3.33%,低于对照组的15.00%（P<0.05）。结论 无痛消化内镜下高频电刀与常规内镜黏膜下剥离术治疗胃癌前病变相比具有显著疗效。但无痛消化内镜下高频电刀治疗可提升切除速度,降低并发症发生率。

Objective To explore the application effect and recurrence rate of painless endoscopic high-frequency electrocautery on gastric precancerous lesions．Methods A total of 120 patients with precancerous gastric cancer admitted to the Affiliated Hospital of Gansu Medical College from January 2017 to January 2020 were selected for retrospective analysis and divided into two groups according to their surgical treatment plan,with 60 patients in each group．The control group underwent conventional endoscopic submucosal dissection,and the patients in the observation group received painless digestive endoscopic high-frequency electric knife dissection．The resection speed,resection area,curative resection rate,complete and bulk resection rate were compared of the two groups,the patients were followed up for 3 years to record the recurrence rate,and the complications of the two groups of patients were also compared．Results There were no differences in resection area,curative resection rate,complete resection rate and total resection rate between the two groups（P>0.05）．The resection speed in the observation group was（27.34±8.58）mm²/min,which was higher than that in the control group（15.54±4.52）mm²/min（P<0.05）．There was no difference in the total recurrence rate（28.33% vs 30.00%）at 3 years after surgery between the two groups（P>0.05）．The incidence of infection,perforation and other related complications in the observation group was 3.33%,lower than that in the control group（15.00%）（P<0.05）．Conclusion sCompared with conventional endoscopic submucosal dissection,high-frequency electric knife under painless digestive endoscopy has significant efficacy in the treatment of gastric precancerous lesions．However,painless endoscopic high-frequency electrosurgical treatment can improve the resection speed and reduce the incidence of complications such as infection,perforation and bleeding．

目的 探讨常规超声心动图联合二维斑点追踪技术评估急性白血病患儿在接受蒽环类药物治疗后产生的心脏毒性,早期检测左心功能障碍。方法 采用前瞻性非随机观察研究,选取新诊断急性淋巴细胞白血病患儿20例,分别于确诊白血病后接受蒽环类药物治疗前、接受所有蒽环类药物剂量后以及确诊白血病1年后,进行常规超声心动图和二维斑点技术监测评估心脏毒性。结果 左室流出道速度积分TVI和E、E/E’在治疗期间下降,并在诊断后1年恢复至治疗前数值。在二维斑点追踪纵向应变中,GLPS-LAX、GLPS-A2C、LV-GLPS在完成所有蒽环类药物剂量后与诊断后比较差异有统计学意义,以及诊断后1年与蒽环类药物治疗后比较差异有统计学意义。但GLPS-A4C各时间点比较差异无统计学意义。结论 常规超声心动图联合二维斑点追踪技术的纵向整体应变可早期发现白血病患儿化疗所致的左室功能障碍。

Objective To evaluate cardiotoxicity in children with acute lymphoblastic leukemia treated with anthracyclines by echocardiography combined with 2D speckle tracking imaging,and to detect left heart dysfunction early．Methods In this prospective nonrandomized study,20 children with newly diagnosed acute lymphoblastic leukemia were assessed for cardiotoxicity by echocardiography and 2D speckle tracking imaging in three periods during the treatment．Results The left ventricular outflow tract velocity integral TVI and E,E/E’ decreased during treatment,and went back to the pre-treatment value one year after diagnosis．In the longitudinal strain of 2D speckle tracking imaging,in GLPS-LAX,GLPS-A2C,LV-GLPS,there were statistical differences between treatment completed and after diagnosis,and between 1 year after diagnosis and treatment completed．However,GLPS-A4C has no statistical significance．Conclusion sThe conventional echocardiography combined with longitudinal overall strain of 2D speckle tracking imaging can comprehensively evaluate the early changes of left ventricular dysfunction caused by chemotherapy in children with leukemia．