目的 探究铁死亡相关的lncRNA在肺鳞状上皮细胞癌(简称肺鳞癌)患者中的预后意义。方法 从美国癌症和肿瘤基因图谱数据库(the Cancer Genome Atlas,TCGA)中下载肺鳞癌数据551例,包括49例正常对照样本和502例肺鳞癌患者样本。筛选出与铁死亡相关基因的共表达的lncRNA,使用单变量Cox回归进一步筛选lncRNA,然后,使用Lasso回归和多元Cox回归分构建铁死亡相关的lncRNA模型。建立基于模型的风险评分,并使用Cox回归测试其是否为独立的预后因素。铁死亡相关lncRNAs的功能富集使用基因本体(Gene Ontology)和京都基因和基因组百科全书(Kyoto Encyclopedia of Genes and Genomes)可视化。结果 4个预后铁死亡相关的lncRNA(AC253536.6,FLJ46906LUCAT,AC022150.2)显著不同,这构建了铁死亡相关的lncRNA模型。此模型将肺鳞癌患者分为低风险组和高风险组。基于模型的风险评分是肺鳞癌患者的显著独立因素(HR =2.116,95％CI=1.513~2.961;P<0.001)。此外,4个lncRNA在铁死亡过程,代谢和肿瘤经典途径中均显著富集。结论 4个铁死亡相关的lncRNAs可能是肺鳞癌患者的分子生物标志物和治疗靶标。

Objective To explore the prognostic significance of ferroptosis related lncRNAs in patients with lung squamous cell carcinoma. Methods Data of 551 lung squamous cell carcinoma cases was downloaded from the Cancer Genome Atlas (TCGA) of the United States, including 49 normal control samples and 502 lung squamous cell carcinoma samples. The lncRNAs co-expressed with genes related to ferroptosis was screened out. Univariate Cox regression was used to further screen out the lncRNAs. Then, Lasso regression and multiple Cox regression were used to construct lncRNA models related to ferroptosis. A model-based risk score system was established and Cox regression was used to test whether it was an independent prognostic factor. The functional enrichment of ferroptosis related lncRNAs were visualized using Gene Ontology and Kyoto Encyclopedia of Genes and Genomes. Results The four prognostic ferroptosis related lncRNAs (AC253536.6, FLJ46906 LUCAT, AC022150.2) were significantly different, and the ferroptosis lncRNAs model was constrncted with them. This model divided lung squamous cell carcinoma patients into low-risk group and high-risk group. The model-based risk score was a significant independent factor for patients with lung squamous cell carcinoma (HR=2.116, 95% CI=1.513-2.961; P<0.001). In addition, the four lncRNAs were significantly enriched in metabolism and tumor classical pathways during the ferroptosis process. Conclusions The four ferroptosis lncRNAs could be molecular biomarkers and therapeutic targets for patients with lung squamous cell carcinoma.

目的 分析探讨健康驿站新冠病毒肺炎病例感染来源,评估驿站站内感染风险,规范驿站管理,降低感染风险。方法 对驿站2022年2月21日—3月9日全部14例新冠肺炎病例自入境到报告进行全链条风险分析。结果 14例病例为7批次不同时间入住,其中病例1、2、3、4、5、6、7、8、9、10、12、13共12例病例入境后即确诊,病例11入住5天(其共同入境、同住人员病例10,入境后即确诊)确诊、病例14入住10天发病确诊,其余病例均未呈现感染发病时间特异性,未呈现入境后交叉感染时间特异性,未见入住后空间、通风系统、排污系统交集,未见交叉感染情况。结论 该驿站目前报告新冠肺炎病例均有相关旅居史,主要在香港本土感染。13名病例大概率均在香港感染,入境隔离时发病确诊,其中病例1、2、3、4,病例6、7、8,病例10、11是3起呈现家庭聚集性感染发病,病例5、9是独立个案,病例14需要进一步排除,驿站未规范管理会导致误报及进一步扩大站内感染风险。

Objective To investigate and analyze the source of infection of COVID-19 cases in health station, assess the risk of infection, standardize the management and reduce the risk of infection. Methods From February 21 to March 9, 2022, the whole chain risk analysis of all 14 COVID-19 cases from entry to reporting was carried out. Results Fourteen cases were admitted in 7 batches at different times. Except for case 11 who diagnosed at the 5th day (the case of co-entry and co-resident case 10 was diagnosed after entry), and case 14 who diagnosed at the 10th day, the rest of the cases were diagnosed after entry, which did not show infection-onset time specificity, no time specificity of cross-infection after entry, no intersection of space, ventilation system and sewage system after entry, and no cross-infection. Conclusions The COVID-19 cases reported by the station were mainly infected in Hong Kong. Those 13 cases were highly likely infected in Hong Kong, all were diagnosed at the time of entry quarantine, while cases 1~4, cases 6~8, and cases 10~11 were 3 cases of family cluster infection, case 5 and 9 were an independent case, and case 14 needed to be further investigation. Failure to standardize the management of the station will lead to false alarms and further increase the risk of infection in the station.

目的 分析ABCC2基因表达水平与肺腺癌预后之间的关联性,并对其影响机制进行初步探索。 方法 采用TCGA数据库和HPA数据库对肺腺癌病人癌组织和癌旁组织基因表达数据进行差异性分析,单因素及多因素COX回归评估ABCC2与肺腺癌预后之间的关联性,GSEA用于探讨与ABCC2显著关联的信号通路。 结果 ABCC2在肺腺癌肿瘤组织中存在过表达现象,Kaplan-Meier生存分析曲线结果显示ABCC2基因过表达使肺腺癌病人的死亡风险显著升高(HR=1.46,95%CI=1.09~1.95; P=0.010)。单因素及多因素COX回归结果显示ABCC2基因过表达是肺腺癌病人不良预后的独立危险因素。GSEA结果显示ABCC2可能通过调节药物代谢从而对肺腺癌的发展进行调控。 结论 ABCC2基因过表达使肺腺癌病人的死亡风险显著升高,ABCC2可能是肺腺癌不良预后的潜在分子生物标志物。

Objective To estimate the association between ABCC2 mRNA expression and the prognosis of lung adenocarcinoma and explore the potential influencing mechanism.Methods Difference analysis was used to evaluate the gene expression in tumor tissues and adjacent normal tissues based on The Cancer Genome Atlas database and Human Protein Atlas database.Multivariate COX regression and Kaplan-Meier analysis were performed to evaluate the association between ABCC2 gene expression and the prognosis of lung adenocarcinoma.Gene-set enrichment analysis (GSEA) was performed to screen differentially enriched pathways associated with the ABCC2 high expression phenotype.Results ABCC2 was overexpressed in lung adenocarcinoma tumor tissues compared with adjacent normal tissues.Kaplan-Meier survival analysis showed a significant relationship between ABCC2 mRNA expression and lung adenocarcinoma prognosis (HR=1.16,95% CI=1.09-1.95; P=0.010).Univariate and multivariate Cox regression analysis showed that ABCC2 mRNA expression was an independent risk factor affecting the survival of patients with lung adenocarcinoma.The results of GSEA suggested that ABCC2 may influence the development of lung adenocarcinoma by regulating the metabolism of targeted drug the treatment.Conclusions ABCC2 overexpression can significantly increase the risk of death in patients with lung adenocarcinoma,ABCC2 may be a potential molecular marker for poor prognosis in lung adenocarcinoma.

目的 探究支气管镜下肺泡灌洗并局部使用阿米卡星治疗老年支气管扩张合并感染患者的疗效及对血清炎性因子水平的影响。方法 选取我院2018年3月—2019年5月确诊支气管扩张症、合并感染的符合纳入标准的患者共64例,按照1:1比例抽签分为2组,32例纳入观察组,应用支气管镜下肺泡灌洗阿米卡星治疗;32例纳入对照组,以单纯的支气管镜下肺泡灌洗治疗。观察并比较2组患者的治疗效果、血清炎性因子水平、肺功能情况等。结果 疗效比较显示观察组的96.9%总有效率高于对照组的75.0%(P＜0.05);血清炎性因子水平在患者用药前检测无差异(P＞0.05),经过治疗后,观察组水平均优于对照组P＜0.05;经治疗后,观察组静态肺活量、补呼气量、补吸气量、用力肺活量均优于对照组,差异具有统计学意义(P＜0.05)。结论 对老年支气管扩张合并感染患者应用支气管镜下肺泡灌洗阿米卡星治疗,促进临床效果改善,患者的症状、炎症及肺功能等指标均得到明显改善,值得推广。

Objective To investigate the efficacy of bronchoscopic alveolar lavage and local application of amikacin in the treatment of elderly patients with bronchiectasis complicated with infection and its effect on the level of serum inflammatory factors.Methods A total of 64 patients with bronchiectasis complicated with infection diagnosed in our hospital from March 2018 to May 2019 were selected.They were divided into two groups evenly by proportional drawing. Thirty-two cases were included in the observation group that were treated with bronchoscopic alveolar lavage with amikacin.The other 32 cases were included in the control group that were treated with the bronchoscopic alveolar lavage only.The therapeutic effect,serum inflammatory factor level and pulmonary function of the two groups were observed and compared.Results The total effective rate of 96.9% in observation group was higher than 75.0% in control group (P<0.05).There was no difference in the levels of serum inflammatory factors before treatment (P>0.05).After treatment,the levels of the observation group were better than those of the control group (P<0.05).After treatment,the slow vital capacity,expiratory reserve volume,inspiratory reserve volume and forced vital capacity of the patients in the observation group were better than those in the control group (P<0.05).Conclusions Bronchoscopic alveolar lavage of amikacin in elderly patients with bronchiectasis complicated with infection could improve the clinical effect.The symptoms of the patients,the serum inflammatory factors and lung function of the patients were significantly improved.The treatment is worthy of promotion.

目的 探讨沙丁胺醇与M胆碱受体阻断剂应用于支气管哮喘患儿对其症状改善及肺功能的影响。方法 选择我院2018年9月—2019年9月收治的88例支气管哮喘患儿,采用随机数表法分为观察组(n=44)和对照组(n=44)。在对症治疗基础上,对照组给予沙丁胺醇治疗,在对照组基础上,观察组加入M胆碱受体阻断剂(异丙托溴铵气雾剂)治疗。比较两组患儿治疗效果、症状表现、肺功能指标、生活质量及不良反应发生率。结果 与对照组总有效率77.27%(34/44)相比,观察组93.18%(41/44)较高,差异有统计学意义(P＜0.05);治疗7 d后,观察组咳嗽消失时间(5.12±1.88)d、憋喘消失时间(1.88±0.95)d、肺啰音消失时间(5.45±1.21)d均较对照组[(8.03±1.22)d、(3.65±1.04)d、(7.02±1.62)d]短,差异有统计学意义(P＜0.05);治疗7 d后,观察组FVC、FEV₁、PEF水平[(3.38±0.42)、(2.13±0.48)、(435.79±40.75)L/min]均高于对照组[(2.67±0.46)、(1.75±0.43)、(388.94±35.93)L/min],差异有统计学意义(P＜0.05)。治疗7 d后,观察组SGRQ评分(34.11±4.25)分低于对照组(42.52±4.48)分,差异有统计学意义(P＜0.05)。两组不良反应发生率比较[13.64%(6/44),9.09%(4/44)],差异无统计学意义(P＞0.05)。结论 沙丁胺醇与M胆碱受体阻断剂应用于支气管哮喘患儿,可提高其治疗效果,可缩短咳嗽消失、憋喘消失及肺啰音消失时间,改善其肺功能,提高生活质量,降低不良反应发生率,值得临床推广应用。

目的 分析肺炎支原体RNA实时荧光恒温扩增技术(MP-SAT)作为肺炎支原体肺炎(MPP)患儿疗效监测指标的可行性。方法 选择2017年10月—2018年10月我院儿科收治的因CAP住院的患儿178例为研究对象,其中MPP组80例,非MPP组98例,分别检测血清MP抗体(MP-Ab)和咽拭子MP-RNA,对两种方法检测结果进行统计学分析,以MP-Ab检测为诊断MPP的参照试验,分析MP-SAT诊断MPP的准确性,对MP-SAT和MP-Ab均阳性的MPP病例行动态观察,比较MP-SAT和MP-Ab在患儿不同治疗时间点的检出率,分析MP-SAT转阴时间与临床痊愈时间的相关性,分析MP-SAT转阴时间与MPP患儿临床症状、实验室指标及X线胸片的相关性。结果 MP-SAT和MP-Ab结果不一致的比例在MPP组和非MPP组分别为60.00% (48/80)和19.39%(19/98);MP-SAT、MP-Ab在特异性和阳性预测值方面,差异有统计学意义(P＜0.05);MP-SAT、MP-Ab在敏感度和阴性预测值方面,差异无统计学意义(P＞0.05);MP-SAT、MP-Ab均为阳性28例(35.00%),MP-SAT阳性检出率随治疗时间的延长降低(P＜0.05),MP-Ab阳性检出率随治疗时间的延长升高(P＜0.05);28例临床痊愈时间为(3.11±0.88)周,MP-SAT转阴时间为(3.25±0.74)周,差异无统计学意义(P＞0.05);MP-SAT转阴时间越长的病例表现为发热持续时间越长,X线胸片肺大片实变比例越高,CRP水平越高,LDH水平越高,中性粒细胞百分比越高,淋巴细胞百分比越低(P＜0.05)。结论 MP-SAT作为新一代RNA活菌检测技术在支原体肺炎患儿疗效监测中有较高的价值,值得推广。

Objective To investigate the feasibility of Mycoplasma pneumoniae-simultaneous amplification and testing (MP-SAT)as a monitoring index for children with Mycoplasma pneumoniae pneumonia (MPP). Methods 178 hospitalized children with community-acquired pneumonia (CAP)in our hospital from October 2017 to October 2018 were selected and divided into two groups, namely MPP group (n=80)and non-MPP group (n=98). Serum MP antibody (MP-Ab)and throat swab MP-RNA were detected separately. The MP-Ab test was used as a reference for the analysis of accuracy of MP-SAT for MPP diagnosis. The MPP patients with positive MP-SAT and positive MP-Ab were observed dynamically. The detection rates of MP-SAT and MP-Ab in different treatment time points were compared. The correlation of MP-SAT negative time with clinical recovery time, clinical symptoms, laboratory parameters and chest X-ray was analyzed. Results The ratio of inconsistent MP-SAT and MP-Ab results was 60.00% (48/80)and 19.39% (19/98)in the MPP group and the non-MPP group, respectively. The MP-SAT and MP-Ab were statistically different in terms of specificity and positive predictive value (P<0.05), while no difference was found in the sensitivity and negative predictive value (P>0.05). Both MP-SAT and MP-Ab were positive in 28 cases (35.00%). The positive rate of MP-SAT was decreased with the prolongation of treatment time (P<0.05), meanwhile the positive rate of MP-Ab was increased with the treatment time (P<0.05); the clinical recovery time of 28 cases was (3.11±0.88)weeks, and the MP-SAT negative time was (3.25±0.74)weeks, with no statistical difference (P>0.05). The long-term duration of MP-SAT was characterized by long duration of fever, high consolidation rate of X-ray chest radiograph, high CRP level, high LDH level, high percentage of neutrophils, and low percentage of lymphocytes (P<0.05). Conclusion MP-SAT, as a new generation of RNA live bacteria detection technology, has high value in monitoring the efficacy of Mycoplasma pneumonia in children, and it is worth promoting.

目的 研究集体呼吸操对慢阻肺稳定期患者的执行率影响效果。方法 选取连州市人民医院呼吸内科、ICU 2019年6月—2020年6月收治的120例慢阻肺稳定期患者为研究对象,以随机数字表法分为试验组与对照组,每组各60例,对照组采取一对一训练,试验组采取集体呼吸操,对两组执行率、肺功能、六分钟步行距、圣乔治呼吸问卷(St. George's Respiratory Questionnaire Application,SGRQ)评分进行对比。结果 试验组执行率90.00%,与对照组75.00%相比较,差异有统计学意义(P＜0.05);护理前两组肺功能、六分钟步行距离、SGRQ评分相比较,差异无统计学意义(P＞0.05),护理后4周、护理后8周与护理前相比较,差异有统计学意义(P＜0.05); 试验组护理后4周、护理后8周肺功能、六分钟步行距、SGRQ评分与对照组相比较,差异有统计学意义(P＜0.05)。结论 集体呼吸操有助于提高慢阻肺稳定期患者执行率,进一步改善其肺功能以及运动耐力水平,值得在今后护理工作中推广使用。

Objective To study the effect of collective breathing exercises on the execution rate of patients with stable COPD. Methods A total of 120 patients with stable chronic obstructive pulmonary disease admitted to the department of respiratory medicine and ICU of Lianzhou People's Hospital from June 2019 to June 2020 were selected as the research objects. They were divided into the experimental group and the control group by a random number table. For 60 cases, the control group took one-to-one training, and the test group took collective breathing exercises. The performance rate, lung function, six-minute walk distance, and St. George's Respiratory Questionnaire Application (SGRQ) scores were compared between the two groups. Results The execution rate of the experimental group was 90.00%, compared with 75.00% of the control group, the difference was statistically significant (P<0.05); there was no statistically differences in lung function, six-minute walking distance, and SGRQ score between the two groups before nursing ( P>0.05), 4 weeks after nursing, 8 weeks after nursing, and before nursing, the difference was statistically significant (P<0.05); in the experimental group, 4 weeks after nursing, 8 weeks after nursing, lung function, six-minute walking distance, SGRQ score was compared with the control group, the difference was statistically significant (P<0.05). Conclusion Group breathing exercises may help improve the performance rate of patients with chronic obstructive pulmonary disease in stable phase, and further improve their lung function and exercise endurance. It is worth popularizing in future nursing work.

目的 调查临床护士对新型冠状病毒肺炎的知信行现状,为制定相关培训策略提供依据。方法 采用便利抽样法,2020年3月选取我院的1 007名临床护士作为研究对象,采用一般资料及临床护士对新型冠状病毒肺炎知信行问卷对其进行调查。结果 1 007名临床护士对新型冠状病毒肺炎的知识、态度、行为得分分别为(28.82±9.22)分、(52.04±5.52)分、(55.38±7.93)分,新型冠状病毒肺炎知信行总分为(136.24±14.52)分。不同年龄、职称、职务、工作年限、何时参加过穿脱防护服操作培训及考核新型冠状病毒肺炎知识得分比较,差异均有统计学意义(P<0.05);工作年限、何时参加过穿脱防护服操作培训及考核,其新型冠状病毒肺炎态度得分比较,差异均有统计学意义(P<0.05);是否参加过穿脱防护服操作的培训及考核、何时参加过穿脱防护服操作培训及考核、是否参加过咽拭子采集的培训及考核的新型冠状病毒肺炎行为得分比较,差异均有统计学意义(P<0.05)。结论 临床护士对新型冠状病毒肺炎的知识得分处于较低水平,态度和行为得分较好,建议护理管理者需加强临床护士对新型冠状病毒肺炎的知识学习及相关培训,以提高护士知识及技能水平。

Objective To investigate the current status of nurses' knowledge, attitude and behavior to new coronavirus pneumonia, to provide the basis for formulating relevant training strategies. Methods In March 2020, 1 007 clinical nurses in our hospital were selected as the research object. The general information and questionnaire about the new coronavirus pneumonia were investigated in these nurses. Results Scores of 1 007 nurses answered the knowledge, attitude and behavior to new coronavirus pneumonia were(28.82±9.22),(52.04±5.52), and(55.38±7.93), respectively. The total score of knowledge, attitude, and behavior to the new coronavirus pneumonia was(136.24±14.52). The differences of scores of knowledge about new coronavirus pneumonia between different ages, job titles, duties, working years, and when they participated in the training and evaluation of wearing and taking off protective clothing were statistically significant (P<0.05). There was a statistically significant difference in the attitude scores of the new coronavirus pneumonia between different working years and when they participated in training and evaluation of wearing protective clothing (P<0.05). There were statistically significant differences in the behavior scores to new coronavirus pneumonia between whether and when they have participated in the training and evaluation of wearing and taking off protective clothing, and whether they had participated in the training and evaluation of pharyngeal swab collection (P<0.05). Conclusion Nurses' knowledge scores for new coronavirus pneumonia are at a low level, but their attitude and behavior scores are higher. It is recommended that new coronavirus pneumonia knowledge and related training should be strengthened for nurses to improve nurses' knowledge and skills.

目的 探讨家庭医生契约式服务对婴儿生长发育及肺炎发生率的影响。方法 选取2019年7月—2020年2月龙凤社区出生的婴儿200例作为研究对象,随机分为签约组与未签约组,每组100例。其中,签约组婴儿接受家庭医生契约式服务,未签约组婴儿则接受社区常规儿童保健服务。记录两组婴儿出生后第1、3、6、9、12个月时的生长发育指标(身长、体质量)、神经心理发育指标(大动作、精细动作、个人-社会、语言、适应性)以及肺炎发生率,进行对比分析。结果 出生后第1个月和第3个月,两组婴幼儿身高与体质量差异无统计学意义(P＞0.05)。自出生后第6个月开始,签约组婴幼儿的身高与体质量水平均高于未签约组婴幼儿(P＜0.05)。两组中出生后1月龄的婴幼儿在发育商5项指标中差异均无统计学意义(P＞0.05)。在12月龄时,签约组婴幼儿的大动作、精细动作、个人-社会、语言、适应性5项指标评分均高于未签约组婴幼儿(P＜0.05)。截止出生后第12个月,签约组共发生2例肺炎患儿,肺炎发生率2%;未签约组发生10例肺炎患儿,肺炎发生率10%,高于签约组肺炎发生率。所有肺炎患儿均给予积极对症治疗后痊愈。结论 家庭医生契约式服务能够促进婴幼儿出生后第1年内身心发育水平,同时还能有效降低肺炎的发生风险,有利于婴幼儿身心全面、健康地发育和生长,具有比较显著的卫生和社会学价值,值得推广应用。

Objective To explore the effect of family doctor contract service on infant growth and development and incidence of pneumonia. Methods From July 2019 to February 2020, 200 infants in Longfeng community were selected as the research objects and randomly divided into contract group and non contract group, with 100 cases in each group. Among them, the infants in the contract group received the family doctor contract service, while the infants in the non signing group received the community routine child health care services. The growth and development indexes (body length, body weight), neuropsychological development indexes (big movements, fine movements, personal society, language, adaptability) and the incidence of pneumonia were recorded and analyzed in the first, third, sixth, ninth and twelfth months after birth. Results There were no significant differences in height and weight between the two groups at the first and third month after birth (P>0.05). From the 6th month after birth, the height and weight of infants in the signing group were higher than those in the non signing group (P<0.05). There were no significant differences in the 5 indexes of development quotient between the two groups (P>0.05). At the age of 12 months, the scores of big movement, fine movement, personal society, language and adaptability of infants in contract group were higher than those in non contract group (P<0.05). By the end of the 12th month after birth, there were 2 cases of pneumonia in the signing group, the incidence of pneumonia was 2%; in the non signing group, there were 10 cases of pneumonia, the incidence of pneumonia was 10%, which was higher than that of the signing group. All children with pneumonia were cured after active symptomatic treatment. Conclusion Family doctor contract service can promote the physical and mental development level of infants and young children in the first year after birth, at the same time, it can effectively reduce the risk of pneumonia, which is conducive to the comprehensive and healthy development and growth of infants and young children. It has significant health and sociological value and is worthy of promotion and application.

目的 探讨应用超声心动图评价肺动脉高压(PAH)致心肌损伤的临床价值及氧化应激损伤的相关性。方法 12周龄SD大鼠48只。随机均分为4组:空白对照组、NaCl对照组、PAH 2周组及PAH 4周组。建模后,采用超声检测相关参数。HE及Masson染色观察右心室的心肌细胞及胶原纤维分布情况,测定超氧化物歧化酶(SOD)活力,还原型谷胱甘肽(GSH)和丙二醛(MDA)水平,并评价其与超声参数的相关性。结果 PAH组大鼠超声相关参数均变化明显,且逐渐加重。HE及Masson染色显示心肌细胞增大,心肌间隙中的胶原纤维明显增多,且4周组较明显。PAH组大鼠心肌组织中的SOD活力及GSH水平较低,而MDA水平较高,有变化趋势,且与超声参数有显著相关性,差异均有统计学意义(P<0.05)。结论 PAH导致大鼠右心室心肌组织结构改变,同时引起氧化应激相关指标的变化。

Objective To explore the clinical value of echocardiographic evaluation of myocardial injury caused by pulmonary hypertension (PAH) and the correlation of oxidative stress injury. Methods Forty-eight 12-week-old SD rats were collected. They were randomly divided into 4 groups: blank control group, NaCl control group, PAH 2-week group and PAH 4-week group. After modeling, ultrasound was used to detect relevant parameters. HE and Masson staining were used to observe the distribution of myocardial cells and collagen fibers in the right ventricle. Superoxide dismutase (SOD) activity, reduced glutathione (GSH) and malondialdehyde (MDA) levels were measured, and their correlations with ultrasound parameters were evaluated. Results The ultrasound-related parameters of rats in the PAH group changed significantly and gradually increased.HE and Masson staining showed that cardiac myocytes were enlarged and collagen fibers in myocardial interstices were increased, and it was more obvious in the 4-week group.In the PAH group, the SOD activity and GSH levels were lower, while the MDA levels were higher, and there was a trend of change, and there was a significant correlation with ultrasound parameters. The difference was statistically significant (P<0.05). Conclusion PAH causes changes in the myocardial tissue structure of the rat right ventricle, as well as changes in oxidative stress-related indicators.