与正常组织细胞微环境相比,肿瘤微环境具有一定的异质性,包括偏酸性、氧化还原状态失衡、存在高浓度活性氧以及酶过量表达等。根据以上肿瘤微环境特点,可设计出一系列通过各种特殊微环境响应型连接臂相连的小分子或聚合物前药纳米粒。其中,多柔比星阿霉素作为一类最常见的广谱抗肿瘤药物在治疗肿瘤的过程中发挥重要作用。文章探讨了在肿瘤微环境特异性的生理状态下针对不同微环境所设计的多柔比星前药及其释放特性等,归纳总结了肿瘤微环境响应型多柔比星前药的研究进展。
Compared with normal tissue cell microenvironment, there is some differences in tumor microenvironment, such as partial acidity, imbalance of redox state, high concentration of reactive oxygen species and cathepsin. According to the above characteristics of tumor microenvironment, a series of small molecule or polymer prodrug nanoparticles connected by various special microenvironment responsive structures can be designed. Doxorubicin, as one of the most common broad-spectrum antitumor drugs, plays an important role in the treatment of tumors. This review discusses the doxorubicin prodrug designed for different tumor microenvironments under the physiological state of tumor microenvironment specificity and their release characteristics, and summarizes the research progress of tumor microenvironment-responsive doxorubicin prodrug.
目的 分析刃针联合关节错缝术治疗第三腰椎横突综合征(TLVTPS)的疗效。方法 采用视觉模拟评分法、Oswestry功能障碍指数评分以及腰部活动度,分析2023年1月至10月于广州市第一人民医院就诊的274例TLVTPS患者。其中,对照组(137例)采用刃针治疗,观察组(137例)采用刃针联合关节错缝术,比较两组疗效。结果 观察组的视觉模拟评分(0.46分)和Oswestry功能障碍指数评分(10.32分)低于对照组(P<0.05);同时,腰部活动差(53.69 cm)高于对照组(P<0.05);此外,痊愈及显效率83.93%(115/137)和总有效率93.42%(128/137)高于对照组(P<0.05)。结论 刃针联合关节错缝术可有效缓解TLVTPS患者疼痛,改善腰部功能,疗效显著。
Objective To analyze the therapeutic effect of blade needle combined with joint misalignment therapy in third lumbar verterbrae transverse process syndrome(TLVTPS).Methods This study retrospectively analyzed 274 TLVTPS patients from January 2023 to October 2023 in Guangzhou First People’s Hospital,using the Visual Analogue Score,Oswestry Disability Index scores,and lumbar range of motion.Among them,the control group(137 patients)were treated with blade needle therapy,while the observation group(137 patients)were treated with blade needle therapy combined with joint misalignment therapy.Results The Visual Analogue Score(0.46)and Oswestry Disability Index scores(10.32)of the observation group were lower than that of the control group(P<0.05).Meanwhile,the lumbar range of motion(53.69 cm)was higher than that of the control group(P<0.05).Moreover,the recovery and effective rate was 83.93%(115/137)and the total effective rate was 93.42%(128/137),which were higher than that of the control group(P<0.05).Conclusions The combination of blade needle therapy and joint dislocation manipulation alleviate pain effectively,improve lumbar function,and is clinically effective in patients with TLVTPS.
目的 明确输血前各抗体的分布特点,探讨自身抗体和同种抗体在性别、年龄、输血史、妊娠史和不同疾病中的差异,并根据抗体血型血清学特性制定个体输血方案,以确保临床输血安全。方法 选取2021年6月—2024年8月在广东省第二人民医院输血科申请输注红细胞或手术备血的29 662例患者,采用低离子抗人球蛋白微柱凝胶法进行不规则抗体筛查,结果阳性的标本经科内讨论并送广州血液中心血型参比实验室进行抗体鉴定,通过统计血液中心回报结果分析各抗体的特异性。结果 29 662例患者标本中不规则抗体结果为阳性的有208例,阳性率为0.70%。同种抗体占比47.69%,Rh、MNS和Lewis红细胞血型系统共占同种抗体中的94.50%,其中常见意外抗体:抗-E占31.87%、抗-M占14.29%、抗-Mur占19.78%、抗-C占7.69%和抗-e占7.69%。同种抗体与自身抗体在性别、年龄、妊娠史等方面比较差异无统计学意义(P>0.05);在输血史及不同科室疾病等方面比较差异有统计学意义(P<0.05)。结论 输血前进行输血相容性检测是必要的,应对拟申请红细胞的患者进行不规则抗体筛查,阳性者宜进行抗体鉴定,明确其抗体的特异性及临床意义,以确保临床输血安全。
Objective To clarify the distribution characteristics of each antibody before transfusion,to explore the differences between autoantibodies and homologous antibodies in gender,age,history of blood transfusion,history of pregnancy and different diseases,and to formulate individual transfusion protocols based on the serological characteristics of antibody blood groups to ensure the safety of clinical blood transfusion.Methods A total of 29 662 patients who applied for red blood cell transfusion or surgical blood preparation in the hospital from June 2021 to August 2024 were selected for irregular antibody screening by low-ion anti-human globulin microcolumn gel method.The samples with positive results were discussed within the department and sent to the Blood Type Reference Laboratory of Guangzhou Blood Center for antibody identification.The specificity of each antibody was analyzed by blood center reported results.Results Among 29 662 patients,208 were positive for irregular antibody,the positive rate was 0.70%.The alloantibodies accounted for 47.69%,Rh,MNS and Lewis erythrocyte blood group system accounted for 94.50% of alloantibodies,among which the common unexpected antibodies were anti-E 31.87%,anti-M 14.29%,anti-MUR 19.78%,anti-C 7.69% and anti-E 7.69%.There were no significant differences between alloantibodies and autoantibodies in gender,age and pregnancy history(P>0.05).There were statistically significant differences in blood transfusion history and diseases in different departments(P<0.05).Conclusions It is necessary to test the compatibility of blood transfusion before transfusion.Screening for irregular antibodies should be carried out in prospective transfusion patients,and antibody identification should be carried out in positive patients to clarify the specificity and clinical significance of their antibodies to ensure the safety of clinical transfusion.
目的 探讨综合康复训练对脑卒中后轻度认知障碍患者的应用效果及认知功能影响。方法 选取2022年2月—2023年2月暨南大学附属广州红十字会医院收治的80例脑卒中后轻度认知障碍患者展开前瞻性研究,应用抽签法将其分为综合康复组与常规组,各40例。常规组实施常规干预,综合康复组在常规组基础上增加综合康复训练,对比其认知功能,简易智能精神状态检查量表(MMSE)、美国国立卫生院卒中量表(NIHSS)评分变化,运动功能与平衡功能,日常生活能力与生活质量。结果 干预后综合康复组患者洛文斯顿作业疗法认知量表评分注意力为(3.36±0.42)分、思维运动为(17.34±2.31)分、定向力为(13.19±1.24)分,均高于常规组,且两组干预后高于干预前(P<0.05);干预后综合康复组患者MMSE评分为(25.58±4.12)分高于常规组,且两组干预后高于干预前,NIHSS评分为(14.53±2.62)分,低于常规组,且两组干预后低于干预前(P<0.05);干预后综合康复组患者Fugl-Meyer运动功能评定量表评分为(14.51±3.23)分、手臂动作调查测试表评分为(26.86±5.25)分、平衡量表评分为(43.06±5.13)分,高于常规组,且两组干预后高于干预前(P<0.05);干预后综合康复组患者日常生活活动能力量表评分为(53.02±4.43)分、脑卒中专用生活质量量表评分为(97.11±12.23)分,高于常规组,且两组干预后高于干预前(P<0.05)。结论 针对脑卒中后轻度认知障碍患者采取综合康复训练可促进患者认知功能恢复,提升患者运动功能及机体平衡功能,改善患者智力水平与神经功能,进一步提升患者日常生活能力与生活质量。
Objective To explore the effect of comprehensive rehabilitation training on cognitive function in patients with mild cognitive impairment after stroke.Methods A prospective study was conducted on 80 patients with mild cognitive impairment after stroke,who admitted to the hospital from February 2022 to February 2023.They were divided into a comprehensive rehabilitation group and a control group using a lottery method,with 40 patients in each group.The control group received routine intervention,while the comprehensive rehabilitation group received additional comprehensive rehabilitation training on the basis of the control group.Their cognitive function,Mini Mental State Examination Scale(MMSE),National Institutes of Health Stroke Scale in the United States(NIHSS)score changes,motor function and balance function,daily living ability and quality of life were compared.Results After intervention,the Lowenstein Occupational Therapy Cognitive Scale scores of attention(3.36±0.42),thinking and motor(17.34±2.31),and orientation(13.19±1.24)in the comprehensive rehabilitation group were higher than those in the control group,and both groups had higher scores after intervention than before(P<0.05).After intervention,the MMSE score(25.58±4.12)of patients in the comprehensive rehabilitation group was higher than that of the control group,and both groups had higher scores after intervention compared to those before intervention.The NIHSS score(14.53±2.62)was lower than that of the control group,and both groups had lower scores after intervention compared to those before intervention(P<0.05).After intervention,the Fugl Meyer Assessment score(14.51±3.23),Arm Movement Survey Test Form score(26.86±5.25),and Balance Scale score(43.06±5.13)in the comprehensive rehabilitation group were higher than those in the control group,and both groups had higher scores after intervention than before(P<0.05).After intervention,the Basic Activity of Daily Living score(53.02±4.43)and stroke specific quality of life score(97.11±12.23)in the comprehensive rehabilitation group were higher than those in the control group,and both groups had higher scores after intervention than before(P<0.05).Conclusions Comprehensive rehabilitation training for patients with mild cognitive impairment after stroke can promote cognitive function recovery,improve motor function and balance function,enhance intelligence and neurological function,and further improve daily living ability and quality of life.
目的 分析拔除导致邻牙牙根外吸收(ERR)的埋伏阻生第三磨牙后ERR患牙的预后情况及影响因素。方法 对32例埋伏阻生第三磨牙挤压致ERR的患牙,在拔除阻生第三磨牙后,通过临床症状、电活力测试观察第二磨牙牙髓的预后,根据其预后不同,分为保髓成功组及保髓失败组,比较两组的基本信息(年龄、性别)、患牙部位、牙根吸收类型,分析影响ERR患牙预后的相关因素。结果 下颌ERR患牙保髓成功率(91.67%)高于上颌ERR患牙(62.50%)(P=0.085),牙根吸收未及髓腔的患牙保髓成功率(100%)高于牙根吸收及髓腔的患牙(70.59%)(P=0.046),两组间的基本信息比较差异无统计学意义(P>0.05)。结论 当患牙牙根吸收未及牙髓时或患牙位于下颌时,拔除埋伏第三磨牙后ERR患牙预后相对良好,故应尽早拔除已导致ERR发生的埋伏阻生第三磨牙。
Objective To analyze the prognosis and influencing factors of external root resorption(ERR)of adjacent teeth after the removal of impacted third molar that caused ERR.Methods Thirty-two cases of impacted third molars with external root resorption caused by compression were treated.After the extraction of the impacted third molars,the prognosis of the pulp of the second molars was observed through clinical symptoms and electrical activity tests.According to their different prognoses,they were divided into a successful pulp preservation group and a failed pulp preservation group.The basic information(age,gender),affected tooth location,and root resorption type of the two groups were compared,and the relevant factors affecting the prognosis of ERR patients were analyzed.Results The success rate of pulp preservation for mandibular ERR patients(91.67%)was higher than that for maxillary ERR patients(62.50%)(P=0.085),and the success rate of pulp preservation for ERR not involving pulp cavity(100%)was higher than that for ERR involving pulp cavity(70.59%)(P=0.046).There was no significant difference in basic information between the two groups(P>0.05).Conclusions When the root resorption of the affected tooth does not reach the pulp or when the affected tooth is located in the lower jaw,the prognosis of the affected tooth after the impacted third molar removed is good.Therefore,the impacted third molar should be removed as soon as possible to prevent ERR from occurring.
目的 探讨肝脏衰弱程度联合肝功能分级预测肝硬化患者肝病复合不良事件的价值,作为识别和干预不良结局的依据。方法 选择2022年12月—2023年12月医院接收的肝硬化患者80例进行研究,随访6个月观察患者不良事件发生情况,将出现2个及以上肝病并发症的肝病复合不良事件患者25例作为观察组,将出现1个肝病并发症或未出现并发症的患者55例作为对照组,比较两组患者的基本资料、实验室指标、营养指标、体力活动水平、肝脏衰弱指数(LFI)、肝功能Child-Turcotte-Pugh(CTP)评分,采用单因素和多因素Cox回归分析评估肝硬化患者肝病复合不良事件的危险因素,使用受试者工作特征(ROC)曲线下面积评估LFI联合CTP评分预测肝硬化患者肝病复合不良事件的价值。结果 观察组年龄、丙氨酸氨基转移酶(ALT)高于对照组,红细胞计数(RBC)、血红蛋白(Hb)、血肌酐(Scr)、总胆红素(TBIL)、步速、小腿围低于对照组(t分别为4.235、6.500、3.826、3.989、4.289、8.878、2.474,均P<0.05)。观察组营养风险48.00%、LFI≥4.5分52.00%、CTP分级B/C级76.00%高于对照组18.18%、14.55%、27.27%(χ 2 分别为7.664、12.454、16.699,均P<0.05)。单因素Cox回归分析显示年龄、ALT、营养风险、LFI≥4.5分、CTP分级B/C级、RBC、Scr、TBIL、Hb、步速、小腿围为肝硬化患者发生肝病复合不良事件的危险因素(HR分别为2.251、1.578、1.626、1.981、1.715、1.428、1.443、1.419、1.336、1.332、1.254,均P<0.05)。多因素Cox回归分析显示年龄、ALT、营养风险、LFI≥4.5分、CTP分级B/C级为肝硬化患者发生肝病复合不良事件的独立危险因素(HR分别为2.275、1.746、2.025、1.895,P均<0.05)。ROC曲线结果显示LFI、CTP、LFI联合CTP预测肝硬化患者肝病复合不良事件的AUC分别为0.82、0.79、0.88(P<0.05)。结论 年龄、肝脏衰弱、CTP分级B/C级、营养风险为肝硬化患者肝病复合不良事件的危险因素,肝脏衰弱程度联合肝功能分级预测肝硬化患者肝病复合不良事件具有更高的效能。
Objective To explore the value of predicting liver disease complex adverse events in patients with liver cirrhosis by combining the degree of liver frailty with liver function grading,as a basis for identifying and intervening in adverse outcomes.Methods A study was conducted on 80 patients with liver cirrhosis admitted to the hospital from December 2022 to December 2023.Patients were followed up for six months to observe the occurrence of adverse events.Twenty-five patients with liver disease complex adverse events with two or more liver disease complications were selected as the observation group,and 55 patients with one or no liver disease complication were selected as the control group.The basic information,laboratory indicators,nutritional indicators,physical activity levels,liver frailty index(LFI),Child Turcotte Pugh(CTP)scores,univariate and multivariate Cox regression analysis were used to evaluate the risk factors for liver disease complex adverse events in liver cirrhosis patients.The value of combining LFI and CTP score in predicting liver disease complex adverse events in patients with liver cirrhosis was assessed by Receiver Operating Characteristic (ROC)curve area.Results The age,alanine aminotransferase(ALT),red blood cell count(RBC),hemoglobin(Hb),serum creatinine(Scr),total bilirubin(TBIL),walking speed,and calf circumference of the observation group were higher than those of the control group(t=4.235,6.500,3.826,3.989,4.289,8.878,2.474,all P<0.05).The nutritional risk of the observation group was 48.00%,LFI score≥4.5 was 52.00%,CTP grade B/C was 76.00%,which was higher than that of the control group at 18.18%,14.55%,and 27.27%(χ 2 =7.664,12.454,16.699,all P<0.05).Univariate Cox regression analysis showed age,nutritional risk,LFI ≥ 4.5,CTP grade B/C,RBC,Scr,TBIL,Hb,step speed and calf circumference were risk factors for the occurrence of liver disease complex adverse events in patients with liver cirrhosis(HR values=2.251,1.578,1.626,1.981,1.715,1.428,1.443,1.419,1.336,1.332,1.254,all P<0.05).Multivariate Cox regression analysis showed that age,ALT,nutritional risk,LFI ≥ 4.5,and CTP grade B/C were independent risk factors for liver disease complex adverse events in patients with liver cirrhosis(HR values=2.275,1.746,2.025,1.895,all P<0.05).The ROC curve results showed that the AUC of LFI,CTP,and LFI combined with CTP in predicting liver disease composite adverse events in patients with liver cirrhosis were 0.82,0.79,and 0.88,respectively(P<0.05).Conclusions Age,liver frailty,CTP grade B/C,and nutritional risk are risk factors for liver disease complex adverse events in patients with liver cirrhosis.The combination of LFI and liver function grade has higher efficacy in predicting liver disease complex adverse events in patients with liver cirrhosis.
目的 探讨口服铁剂方法用于改善铁缺乏的男性机采血小板固定献血者铁营养状况效果,为采供血机构完善无偿献血者关爱策略提供数据支持。方法 选择2022年9月—2023年8月珠海市中心血站男性血小板固定献血者进行铁蛋白(FER)检测。以FER<30 ng/mL为铁缺乏的判定标准。将49名铁缺乏的男性机采血小板固定献血者随机分成干预组、对照组,分别进行口服铁剂干预,比较两组干预前后血红蛋白(Hb)、血清铁(SI)、FER的浓度变化情况。结果 共检测205名男性机采固定献血者,其中49名FER<30 ng/mL(铁缺乏组),占23.90%,其Hb、SI、FER均值低于FER≥30 ng/mL男性机采固定献血者(正常组)。49名铁缺乏的机采固定献血者口服铁剂干预后:干预组SI、FER浓度分别为(15.97±5.14)μmol/L、(30.55±14.42)ng/mL,高于对照组[(11.49±4.02)μmol/L、(12.77±5.86)ng/mL)],其差异有统计学意义(t=3.466,P<0.001;t=5.493,P<0.001)。干预组Hb为(143.42±10.85)g/L,高于对照组的(140.88±12.97)g/L,但差异无统计学意义(t=-0.726,P=0.471)。结论 针对铁蛋白低值的机采男性固定献血者,采取口服铁剂方法可以有效改善其铁缺乏状况。
Objective To explore the effect of oral iron supplements on improving iron deficiency in male regular plateletpheresis donors.Methods Male regular plateletpheresis donors from Zhuhai Blood Central Station were selected for ferritin(FER)detection.Using FER<30 ng/mL as the criterion for determining iron deficiency,49 donors were selected as the study subjects and divided into intervention group and control group,and the changes in hemoglobin(Hb),serum iron(SI),andFER concentrations were compared.Results A total of 205 male regular plateletpheresis donors underwent FER detection,of which 49 donors had FER under 30 ng/mL(iron deficiency group),accounting for 23.90%.The mean Hb,SI,and FER levels in the iron deficiency group were significantly lower than those with FER≥30 ng/mL.After oral iron intervention,the SI and FER levels in the intervention group([15.97±5.14] μmol/L,[30.55±14.42] ng/mL)were significantly higher than those in the control group([11.49±4.02] μmol/L,[12.77±5.86] ng/mL),and the difference were statistically significant(t=3.466,P<0.001;t=5.493,P=0.000).The Hb values of the intervention group and the control group were(143.42±10.85)g/L and(140.88±12.97)g/L,respectively,with no statistically significant difference between the groups(t=-0.726,P=0.471).Conclusions Oral iron supplementation can effectively improve iron deficiency in male regular plateletpheresis donors.
目的 探讨晚期早产儿中小于胎龄儿(SGA)与适于胎龄儿(AGA)出生时的铁代谢状态。方法 选取2020年1—12月合肥市妇幼保健院收治的150例晚期早产儿(胎龄34~36+6周)作为研究对象。按照出生体质量和胎龄将早产儿分为SGA组(36例)和AGA组(114例),分析比较两组早产儿出生时的铁代谢状态,并应用多因素线性回归分析血清铁的影响因素。结果 与AGA组相比,SGA婴儿的更低的血清铁[14.5 μmol /L (11.4,17.1) vs 16.4 μmol /L(14.1,18.4),P=0.004]、更低的血清铁蛋白[135.6 μg/L(101.8,176.2) vs 172.5 μg/L(123.0,218.3),P=0.009]和更低的总铁结合力[30.4 μmol/L(26.8,34.9)vs 35.4 μmol/L(29.5,44.6),P=0.001]。两组早产儿的血红蛋白、平均红细胞体积、平均红细胞血红蛋白含量和平均红细胞血红蛋白浓度比较差异均无统计学意义(P>0.05)。在早产儿围生期特征中,胎盘异常(β= –1.949,P=0.009)和母亲糖尿病的发生(β= –2.324,P=0.001)与血清铁水平呈负相关。结论 与早产AGA相比,早产SGA铁储备水平较低,适量补充铁元素对小于胎龄新生儿身体发育有促进作用。
Objective To explore the iron metabolism status in late preterm infants who are small for gestational age(SGA)compared to those appropriate for gestational age(AGA)at birth.Methods A total of 150 late preterm infants(gestational age 34 to 36+6 weeks)admitted to the Maternal and Child Health Hospital of Hefei from January to December 2020 were selected as the study subjects.The preterm infants were divided into the SGA group(36 cases)and the AGA group(114 cases)according to birth weight and gestational age.The iron metabolism status at birth was analyzed and compared between the two groups of preterm infants,and multiple linear regression analysis was applied to identify the influencing factors of serum iron.Results Compared with the AGA group,SGA infants had lower serum iron(14.5[11.4,17.1] vs 16.4 [14.1,18.4],P=0.004),lower serum iron protein(135.6[101.8,176.2] vs 172.5[123.0,218.3],P=0.009),and lower total iron binding capacity(30.4[26.8,34.9] vs35.4[29.5,44.6]P=0.001).There were no statistically significant differences in hemoglobin,mean corpuscular volume,mean corpuscular hemoglobin,and mean corpuscular hemoglobin concentration between the two groups of preterm infants(P>0.05).Among the perinatal characteristics of preterm infants,placental abnormalities(β= –1.949,P=0.009)and the occurrence of maternal diabetes(β= –2.324,P=0.001)were significantly negatively correlated with serum iron levels.Conclusions Compared with preterm infants appropriate for gestational age,preterm infants who are small for gestational age have lower iron reserves at birth.Adequate supplementation of iron has a promoting effect on the physical development of small for gestational age newborns.
戊型肝炎病毒(HEV)是导致急性肝炎的重要病原体,部分HEV感染者可进展为肝衰竭,此外,慢性感染和肝外表现可也在HEV感染者中发生。全球每年感染HEV的患者数达2000万,其中330万例患者有肝炎相关的临床症状,年死亡例数约为4.4万(2015年数据)。在我国,HEV以散发流行为主。近年来由于对其研究的重视,HEV病原学、流行病学、临床诊疗和预防取得较大的进展,文章拟对目前HEV防治热点以及新进展进行总结和分析。
Hepatitis E virus(HEV)is an important pathogen that causes acute hepatitis.Some HEV-infected individualsmay progress to liver failure.In addition,chronic infection(including liver fibrosis and cirrhosis)and extrahepatic manifestations can also occur in HEV infection.Worldwide,there are 20 million cases of HEV infection each year,with 3.3 million cases presenting clinical symptoms related to hepatitis,and an annual death toll of approximately 44,000(data from 2015).In China,HEV mainly present as sporadic outbreaks.In recent years,there has been significant progress in the pathogenesis,epidemiology,clinical diagnosis and treatment,and prevention of HEV.This review aims to summarize and analyze the current hotspots and new developments in the prevention and treatment of HEV.
目的 探究经鼻间歇正压通气(NIPPV)和经鼻持续正压通气(NCPAP)作为早产儿呼吸窘迫综合征气管插管机械通气拔管后无创呼吸支持过渡的临床效果的差异。方法 纳入2021年1月—2023年6月在广东省吴川市妇幼保健计划生育服务中心治疗的新生儿呼吸窘迫综合征早产儿66例,用随机数字表法将患儿分为NIPPV组(33例)和NCPAP组(33例)。NIPPV组患儿予经鼻间歇正压通气作为过渡期无创呼吸支持,NCPAP组患儿则予以经鼻持续正压通气作为过渡期无创呼吸支持。对比两组患儿治疗前后血气分析结果、脱机失败率、无创呼吸支持时间、无创后吸氧时间、总给氧时间等指标。结果 接受无创呼吸支持12 h后,NIPPV组患儿的PaO2升至(76.46±1.10)mmHg,高于NCPAP组患儿的(75.51±2.15)mmHg(t=2.249,P=0.028)。此外,NIPPV组患儿的SaO2升至(96.36±0.52)%,也高于NCPAP组患儿的(96.07±0.59)%(t=2.138,P=0.034)。而NIPPV组患儿的PaCO2则降至(41.39±0.74)mmHg,较NCPAP组患儿的(41.87±0.95 )mmHg低(t=-2.230,P=0.025)。NIPPV组无创呼吸支持时间为(3.09±0.52)d,短于NCPAP组的(3.45±0.62)d,且该差异有统计学意义(t=2.584,P=0.012)。同样的,NIPPV组总给氧时间(9.52±0.76)天较NCPAP组的(10.00±0.79)天短,且该差异有统计学意义(t=-2.548,P=0.013)。而两组在脱机失败率、无创呼吸支持后吸氧时间、不良反应发生率等方面比较差异无统计学意义(均P>0.05)。结论 与NCPAP模式相比,早产儿拔管后应用NIPPV模式进行无创呼吸支持取得的临床效果更优。
Objective To explore the difference of clinical effect of nasal intermittent positive pressure ventilation(NIPPV)and nasal continuous positive pressure ventilation(NCPAP)as non-invasive respiratory support mode after extubation in preterm infants with endotracheal intubation.Methods Sixty-six cases of preterm infants with neonatal respiratory distress syndrome treated in our hospital from January 2021 to June 2023 were included.All the subjects were randomly divided into NIPPV group(n=33)and NCPAP group(n=33).The blood gas analysis results,weaning failure rate,non-invasive respiratory support time,oxygen inhalation time after noninvasive ventilation,total oxygen administration time.were compared between the two groups.Results After 12 hours of noninvasive respiratory support,PaO2 in the NIPPV group increased to(76.46±1.10)mmHg,which was significantly higher than that(75.51±2.15)mmHg in the NCPAP group(t=2.249,P=0.028).In addition,SaO2 in the NIPPV group increased to (96.36±0.52)%,which was also significantly higher than that(96.07±0.59)% in the NCPAP group(t=2.138,P=0.034).The PaCO2 in the NIPPV group decreased to (41.39±0.74)mmHg,which was lower than that(41.87±0.95)mmHg in the NCPAP group(t=-2.230,P=0.025).The duration of non-invasive respiratory support in the NIPPV group(3.09±0.52) days was shorter than that(3.45±0.62)days in the NCPAP group,and the difference was statistically significant(t=2.584,P=0.012).Similarly,the total duration of oxygen administration in the NIPPV group(9.52±0.76)days was shorter than that(10.00±0.79)days in the NCPAP group,and the difference was statistically significant(t=-2.548,P=0.013).There were no significant differences in weaning failure rate,oxygen inhalation time after noninvasive respiratory support,and incidence of adverse reactions between the two groups(P>0.05).Conclusions Compared with NCPAP mode,NIPPV mode for non-invasive respiratory support in preterm infants after extubating has better clinical effect,and it is worthy of clinical application.