经鼻间歇和持续气道正压通气治疗新生儿呼吸窘迫综合征的Meta分析

目的评价经鼻间歇正压通气（NIPPV）和经鼻持续气道正压通气（NCPAP）治疗新生儿呼吸窘迫综合征（NRDS）的疗效。方法检索PubM ed、EMBASE、Ovid、Springer、中国期刊全文数据库、万方数据库和维普中文科技期刊数据库,获得NIPPV与NCPAP治疗NRDS的相关RCT文献。根据随机分配方法,分配隐藏,对研究对象、治疗方案和研究结果测量者采用盲法,结果数据的完整性,选择性报告研究结果,其他偏倚来源进行文献偏倚评价。以治疗成功率和脱机成功率为主要结局指标;以预后良好率,早产儿呼吸暂停次数,脑室内出血（IVH）、脑室周围脑白质软化（PVL）、支气管肺发育不良（BPD）和早产儿视网膜病（ROP）发生率等为次要结局指标。计数资料选取OR及其95%C I表示,计量资料以加权均数差（WMD）及其95%C I表示。结果①13篇RCT文献进入M eta分析。13篇文献均采用了正确的随机方法,均提及报告数据的完整性,均未选择性报告研究结果;12篇文献采用了分配隐藏;2篇文献提及未对研究者实施盲法。漏斗图检验未见显著发表偏倚。②M eta分析结果显示,NIPPV组治疗成功率显著高于NCPAP组,OR=0.39（95%C I：0.23~0.56）,P〈0.000 01。NIPPV组脱机成功率显著高于NCPAP组,OR=0.15（95%C I：0.08~0.31）,P〈0.000 01。③NIPPV组预后良好率显著高于NCPAP组,OR=0.30（95%C I：0.13~0.68）,P=0.004。NIPPV组早产儿呼吸暂停次数显著减少,WMD=-0.48（95%C I：-0.58~-0.37）,P〈0.000 01。NIPPV组ROP发生率低于NCPAP组,OR=0.36（95%C I：0.15~0.87）,P=0.02。NIPPV组和NCPAP组BPD（OR=0.59,95%C I：0.29~1.16）、IVH和PVL的发生率（OR=0.54,95%C I：0.24~1.20）以及住院时间（WMD=-2.97,95%C I：-11.26~5.32）差异均无统计学意义。结论 NIPPV可显著降低NRDS患儿行机械通气的比例,可显著提高机械通气拔管后脱机成功率,并可改善早产儿呼吸暂停次数和减少ROP的发生率。现有研究尚不能证实NIPPV可显著降低BPD、IVH和PVL的发生率。有关NIPPV对NRDS的远期疗效仍有待大规模、多中心的RCT研究予以明确。     

俯卧位经鼻持续气道正压通气在早产儿呼吸窘迫中的应用效果

目的 探讨俯卧位经鼻持续气道正压通气（NCPAP）在早产儿呼吸窘迫综合征的应用效果。方法 选择2015年1月-2017年12月我院收住的新生儿呼吸窘迫综合征的早产儿64例作为研究对象,按照随机数字表法分为观察组和对照组,各32例。对照组采用仰卧位NCPAP,观察组采用俯卧位NCPAP,比较两组比较两组血气指标[动脉血氧分压（PaO2）、二氧化碳分压（PaCO2）以及氧合指数（OI）]、呼吸频率（RR）、NCPAP时间、住院时间、恢复出生体质量时间及呕吐、腹胀、胃潴留发生情况。结果 观察组治疗后1、6、24及48 h PaO2高于对照组,PaCO2低于对照组,差异有统计学意义（P＜0.05）;观察组治疗后6、24及48 h OI高于对照组,RR低于对照组,差异有统计学意义（P＜0.05）。观察组NCPAP时间、住院时间及恢复出生体质量时间均短于对照组,差异有统计学意义（P＜0.05）。观察组呕吐、腹胀、胃潴留发生率均低于对照组,差异有统计学意义（P＜0.05）。结论 俯卧位能够更好地发挥NCPAP效果,改善氧合,减少早产儿喂养不耐受的发生,促进病情恢复,缩短住院时间。     

无创高频通气和经鼻持续正压通气治疗早产儿呼吸窘迫综合征的效果比较

目的 比较气管插管-使用肺表面活性物质-拔管（INSURE）后予无创高频通气和经鼻持续正压通气治疗早产儿呼吸窘迫综合征（RDS）的临床治疗效果。方法 选择2018年1月-2021年1月淮安市妇幼保健院新生儿科应用INSURE治疗的Ⅱ~Ⅲ级RDS早产儿46例,采用随机数字表法分为改良组21例和传统组25例。比较两组治疗前及治疗后12 h临床指标（pH、PaO2、PaCO2、PaO2/FiO2、无创通气时间、机械通气、需氧和住院时间）及并发症发生情况。结果 改良组治疗后PaCO2低于传统组,pH、PaO2、PaO2/FiO2高于传统组,无创通气时间、需氧时间和住院时间均短于对照组,差异有统计学意义（P＜0.05）;改良组出生7 d内气管插管机械通气比例低于对照组,差异有统计学意义（P＜0.05);但两组需第2剂肺表面活性物质应用、需咖啡因应用、需药物或手术关闭的动脉导管开放、气漏、支气管肺发育不良、腹胀、坏死性小肠结肠炎、自发性肠穿孔、鼻部损伤、Ⅲ~Ⅳ级颅内出血、肺出血、持续肺动脉高压、视网膜病、死亡数比较,差异无统计学意义（P＞0.05）。结论 INSURE后予以无创高频通气治疗早产儿Ⅱ~Ⅲ级RDS的效果确切,其可改善患儿呼吸功能,缩短无创通气时间、需氧时间和住院时间,且无其他并发症。     

经鼻间歇正压通气治疗新生儿呼吸衰竭的随机对照研究

目的比较经鼻间歇正压通气（nIPPV）与经鼻持续气道正压通气（nCPAP）在新生儿呼吸衰竭中的疗效。方法采用RCT研究的方法,选择2008年1～12月在第三军医大学大坪医院NICU住院的呼吸衰竭新生儿作为研究对象,按随机数字表法将研究对象随机分为nIPPV组和nCPAP组,分别实施nIPPV或nCPAP干预,观察患儿动脉血气分析、应用nIPPV和nCPAP时间、并发症和预后等指标,比较nIPPV组和nCPAP组治疗后需气管插管行机械通气的比例及其预后结局。结果研究期间nIPPV组纳入48例,nCPAP组纳入53例。两组在性别构成比、胎龄、年龄、出生体重、出生后5 m inApgar评分、新生儿急性生理学评分和应用肺表面活性物质比例等方面差异无统计学意义（P均〉0.05）。两组呼吸衰竭原发病分布差异无统计学意义（P〉0.05）。两组治疗前血气分析指标差异均无统计学意义（P均〉0.05）,nIPPV组治疗后1 h血气分析pH和PaO2显著高于nCPAP组（P〈0.05）。nIPPV组治疗成功率为77.1%（37/48例）,nCPAP组为62.3%（33/53例）,nIPPV组显著高于nCPAP组（P〈0.05）。nIPPV组和nCPAP组治疗成功的患儿平均应用nIPPV和nCPAP的时间差异无统计学意义（P均〉0.05）。nIPPV组的预后结局中治愈和好转出院45/48例（93.8%）,nCPAP组为46/53例（86.8%）,两组差异无统计学意义（P〉0.05）。结论与nCPAP相比,nIPPV治疗可显著降低呼吸衰竭新生儿气管插管行机械通气的比例。     

鼻塞持续正压通气治疗早产儿呼吸窘迫综合征30例

目的 了解鼻塞持续正压通气治疗早产儿呼吸窘迫综合征(RDS)的疗效。方法 回顾性分析我院新生儿科1998～2003年收治的30例早产儿RDS。结果 30例RDS中21例治愈出院，无效放弃5例，死亡4例。结论 鼻塞持续正压通气是治疗早产儿RDS的有效方法。     

肺表面活性物质联合经鼻气道正压通气预防呼吸窘迫综合征

目的为探讨肺表面活性物质联合经鼻气道正压通气对极低出生体重儿NRDS的预防价值。方法将2005年1月至2008年12月期间收住我科的极低出生体重儿73例按是否早期使用PS分为预防组（30例）及对照组（40例）,比较其NRDS的发病率及存活率。结果预防组的NRDS及并发症的发生率较对照组明显降低（P〈0.05）。结论早期使用PS并联合经鼻气道正压通气可有效预防极低出生体重儿的NRDS的发病率,并改善NRDS的治疗效果。     

系统评价胎龄小于32周早产儿预防性经鼻持续气道正压通气的作用

目的评价早产儿早期应用经鼻持续气道正压通气（NCPAP）预防呼吸窘迫综合征（RDS）,减少呼吸机应用、病死率和并发症的发生。方法以（prophylactic nasal CPAP OR early nasal CPAP）AND （preterm infants OR low birth weightinfants） ,经鼻持续气道正压通气AND（早产儿OR低出生体重儿）为英中文关键词,检索PubMed、EMBASE、Cochrane临床对照试验库、维普中文科技期刊数据库、中国知网和万方数据库,检索时间均从建库至2011年12月,并辅以手工检索。应用RevMan5．0软件进行Meta分析,根据异质性结果选择相应的效应模型分析;无法进行Meta分析时采用描述性分析。结果8篇RCT文献进入分析。Meta分析结果显示：NCPAP组未能显著降低早产儿气管插管呼吸机应用率（RR=-0．09,95％CI：-0．19～0．02,P=0．09）、RDS发生率（RR=0．81,95％CI：0．59—1．1,P=0．18）和病死率（RR=0．88,95％CI：0．72～1．09,P=0．25）;NCPAP组能显著减少早产儿肺表面活性物质应用率（RR=0．72,95％CI：0．64—0．80,P〈0．00001）。NCPAP组未能显著减少气管插管呼吸机通气时间（MD=-1．91d,95％CI：-6．47～4．45d,P=0．72）及氧气应用时间（MD=-0．46d,95％CI：-6．55—5．63d,P=0．88）。NCPAP组除增加气胸的发生率外,并未明显增加支气管肺发育不良、颅内出血、早产儿视网膜病、败血症、新生儿坏死性小肠结肠炎和动脉导管未闭等并发症的发生率。结论目前的证据表明早期应用NCPAP可减少肺表面活性物质应用,但增加了气胸的发生率;未能减少早产儿呼吸机应用、RDS发生率和病死率,未增加除气胸外的其他并发症发生率。     

早期应用泡式鼻持续气道正压通气8cmH2O和5cmH2O联合肺表面活性物质防治新生儿呼吸窘迫综合征的临床研究

目的探讨早期应用泡式鼻持续气道正压通气（B—NCPAP）8cmH2O（1cmH2O=0．098kPa）与肺表面活性物质（PS）＋B—NCPAP 5cmH2O防治NRDS的疗效差异。方法B—NCPAP8组选取2007年4月30日至2008年8月30日在中山大学附属第三医院分娩且生后30min内收入新生儿病房的早产儿,胎龄27～37周、羊水泡沫实验（-）～（＋）,生后30min内应用B—NCPAP 8cmH2O,分为B—NCPAP8预防（治疗前未出现呼吸窘迫）和B—NCPAP8治疗亚组（治疗前出现呼吸窘迫,胸部X线检查提示存在不同程度NRDS改变）。Ps＋B—NCPAP5组选取为胎龄27—37周、羊水泡沫实验（一）～（＋）的早产儿,生后6h内气管内注入Ps并给予B—NCPAP5cmH20,分为PS＋B—NCPAP5预防及PS＋B-NCPAP5治疗亚组。结果研究期间,B—NCPAP8预防和治疗亚组分别纳入48和25例;PS＋B—NCPAP5预防和治疗亚组分别纳入36和22例。B—NCPAP8预防亚组41／48例（85．4％）未出现呼吸窘迫;7例在应用B—NCPAP4～6h后出现呼吸窘迫,其中5例为轻度NRDS,继续治疗8h后症状逐渐改善,2例为重度NRDS,在生后8～10h行气管插管注入PS并改用机械通气后存活;应用成功率为95．8％（46／48例）。PS＋B—NCPAP5预防亚组32／36例（88．9％）未出现呼吸窘迫;4例在应用BNCPAP4～6h后出现呼吸窘迫,其中3例为轻度NRDS,继续治疗后症状逐渐改善,应用成功率为97．2％（35／36例）;1／36例（2．8％）为中度NRDS,改用机械通气后死亡。B—NCPAP8治疗亚组24／25例（96．0％）治疗2h后血气分析指标改善,1例改用机械通气。PS＋B—NCPAP5治疗亚组18／22例（81．8％）治疗8h后临床症状及血气指标均改善,1／22例（4．5％）死亡。B—NCPAP8与PS＋B—NCPAP5预防及治疗亚组在防治NRDS的疗效上差异无统计学意义,但B—NCPAP8预防及治疗亚组的肺部感染发生率、住院时间及住院费用较低（P均〈0．05）。结论早期应用B．NCPAP 8cmH2O与PS＋B—NCPAP 5cmH2O预防及治疗NRDS的疗效相近,但前者能减少肺部并发症发生,缩短住院时间,减少住院费用。     

新型鼻塞持续气道正压呼吸治疗新生儿呼吸窘迫综合征临床观察

目的观察新型鼻塞持续气道正压呼吸（CPAP）治疗新生儿呼吸窘迫综合征的疗效。方法将42例新生儿呼吸窘迫综合征（NRDS）分为2组，新型鼻塞CPAP组（nCPAP）26倒，采用新型鼻基CPAP仪（Infant flow CPAP，VIASYS Heahhcare美国）治疗，水封瓶CPAP组（bCPAP）16例，比较分析2组病例的临床疗效．结果nCPAP组治疗成功率为84，62％（bCPAP组为43．75％），治疗失败率为15．38％（bCPAP组为56．25％），治愈率为76．92％（bCPAP组为37，5％），病死率为3．85％（bCPAP组为18．75％），两组比较差异均有显著意义。结论新型鼻塞CPAP比简易水封瓶CPAP具有疗效好、不良反应少等明显优点。     

间歇性强制通气对呼吸窘迫综合症早产儿有益

以色列海法Bnai Zion医疗中心的Amir Kugelman博士及其同事在5月的《儿科学杂志》（J Pediatr，2007；150：521—526．）上报道，有呼吸窘迫综合症的早产儿，经鼻腔持续气道正压通气的效果比经鼻腔间歇性强制通气似乎较差，并且后组有较低的支气管肺发育异常发生率。     

The role of non-invasive positive pressure ventilation in post-extubation respiratory failure: An evaluation using meta-analytic techniques

Background:

The use of non-invasive positive pressure ventilation (NIPPV) in post-extubation respiratory failure is not well-established. Meta-analytic techniques were used to assess the effects of prophylactic application of NIPPV (prior to the development of respiratory failure) and therapeutic application of NIPPV (subsequent to the development of respiratory failure).

Materials and Methods:

Randomized controlled trials (RCTs) from 1966 to May 2010 were identified using electronic databases. RCTs, which reported the use of NIPPV in post-extubation respiratory failure with defined assessable endpoints: reintubation, mortality and length of stay, were included.

Results:

Reintubation was the primary outcome, mortality and lengths of stay were the secondary outcomes. Risk ratios (RR) were calculated for discrete outcomes and weighted mean differences (WMD) for continuous measures. There were 13 trials with 1420 patients; 9 prophylactic with 861 patients and 4 therapeutic with 559 patients. In the prophylactic group, NIPPV was associated with lower rates of reintubation: RR 0.53 (95% confidence interval [CI], 0.28-0.98), P = 0.04. In the therapeutic group, NIPPV showed a null effect on reintubation: RR 0.79 (95% CI, 0.50-1.25), P = 0.31. The analysis on the secondary outcomes suggested significant reduction of hospital mortality with prophylactic application of NIPPV: RR 0.62 (95% CI 0.4-0.97), P = 0.03, with no effect on the other outcomes. Therapeutic application of NIPPV reduced intensive care unit length of stay: WMD −1.17 (95% CI −2.82 to −0.33), P = 0.006, but no effect on the other secondary outcomes.

Conclusions:

The results of this review suggested prophylactic NIPPV was beneficial with respect to reintubation and the therapeutic use of NIPPV showed a null effect.     

A practical approach to adult acute respiratory distress syndrome

Acute respiratory distress syndrome (ARDS) is a common disease encountered in hospitalized adult patients that, historically, has carried a very high mortality. This article reviews the clinical features and how pathophysiology informs the evidence-based management of ARDS.     

Changes of splanchnic perfusion after applying positive end expiratory pressure in patients with acute respiratory distress syndrome

Background:

Positive end-expiratory pressure (PEEP) improves oxygenation and can prevent ventilator- induced lung injury in patients with acute respiratory distress syndrome (ARDS). Nevertheless, PEEP can also induce detrimental effects by its influence on the cardiovascular system. The purpose of this study was to assess the effects of PEEP on gastric mucosal perfusion while applying a protective ventilatory strategy in patients with ARDS.

Materials and Methods:

Thirty-two patients were included in the study. A pressure–volume curve was traced and ideal PEEP, defined as lower inflection point + 2cmH₂O, was determined. Gastric tonometry was measured continuously (Tonocap). After baseline measurements, 10, 15 and 20cmH₂O PEEP and ideal PEEP were applied for 30 min each. By the end of each period, hemodynamics, CO₂ gap (gastric minus arterial partial pressures), and ventilatory measurements were taken.

Results:

PEEP had no effect on CO₂ gap (median [range], baseline: 18 [2–30] mmHg; PEEP 10: 18 [0–40] mmHg; PEEP 15: 17 [0–39] mmHg; PEEP 20: 16 [4–39] mmHg; ideal PEEP: 19 [9–39] mmHg; P = 0.19). Cardiac index also remained unchanged (baseline: 4.7 [2.6–6.2] l min⁻¹ m⁻²; PEEP 10: 4.4 [2.5–7] l min⁻¹ m⁻²; PEEP 15: 4.4 [2.2–6.8] l min⁻¹ m⁻²; PEEP 20: 4.8 [2.4–6.3] l min⁻¹ m⁻²; ideal PEEP: 4.9 [2.4–6.3] l min⁻¹ m⁻²; P = 0.09).

Conclusion:

PEEP of 10–20 cmH₂O does not affect splanchnic perfusion and is hemodynamically well tolerated in most patients with ARDS, including those receiving inotropic supports.     

Compliance versus dead space for optimum positive end expiratory pressure determination in acute respiratory distress syndrome

Objective:

To Compare compliance versus dead space (Vd) targeted positive end-expiratory pressure (PEEP) as regard its effect on lung mechanics and oxygenation.

Materials and Methods:

This study was carried out on 30 adult acute respiratory distress syndrome patients. The ventilator was initially set on volume controlled with tidal volume (Vt) 7 mL/kg predicted body weight (PBW), inspiratory plateau pressure (Ppl) <30 cm H₂ O. If the Ppl was >30 cm H₂ O with a TV of 6 mL/kg PBW, a step-wise Vt reduction of 1 mL/kg PBW to as low as 4 mL/kg/PBW was allowed. Respiratory rate adjusted to maintain pH 7.30-7.45. FiO₂ start at 100%. Best PEEP determined at 2 points, one by titrating PEEP until reaching the highest static compliance (Cst) (PEEP Cst) and the other one is at the lowest Vd/Vt (PEEP Vd/Vt). The following data measured before and 30 min after setting PEEP Cst and PEEP Vd/Vt. Cst, PaCO₂ - PetCO₂, Vd/Vt, PaO₂ /FiO₂, Ppl, heart rate, mean arterial pressure and oxygen saturation.

Results:

optimum PEEP determined by Vd/Vt was significantly (P < 0.05) lower than the optimum PEEP determined by Cst. Best PEEP Vd/Vt showed a significant decrease (P < 0.05) in Cst, PaCO₂ - PetCO₂, Vd/Vt and Ppl in comparison with best PEEP Cst. The PaO₂ /FiO₂ showed a significant increase (P < 0.05) with best PEEP Vd/Vt in comparison with best PEEP Cst.

Conclusion:

Vd guided PEEP improved compliance and oxygenation with less Ppl. Hence, its use as a guide for best PEEP determination may be useful.     

Prone position and pressure control inverse ratio ventilation in H1N1 patients with severe acute respiratory distress syndrome

Aim:To observe the 28 and 90 days mortality associated with prone position and assist control-pressure control (with inverse ratio) ventilation (ACPC-IRV).Results:At admission, among these six patients the mean tidal volume generated was about 376.6 ml which was in the range of 6–8 ml/kg predicted body weight. The mean lung injury score was 3.79, mean PaO₂ /FiO₂ ratio was 52.66 and mean oxygenation index was 29.83. The mean duration of ventilation was 9.4 days (225.6 h). The ICU length of stay was 11.16 days. There was no mortality at 28 and 90 days.Conclusion:Early prone combined with ACPC-IRV in H1N1 patients having severe ARDS can be used as a rescue therapy and it should be confirmed by large observational studies.     

外柱细胞软化对Corti器感音影响的生物力学研究

Corti器的感音过程容易受到内部结构属性变化的影响。外柱细胞血管舒张刺激磷蛋白缺失会减缓肌动蛋白丝的形成,从而产生听力延迟。本研究运用COMSOL建立三维有限元模型研究肌动蛋白缺失导致外柱细胞软化时,Corti器感音过程中基底膜和外毛细胞与Deiters细胞结合点的力学行为变化。结果表明,外柱细胞软化会削弱外毛细胞主动力对基底膜位移增益的放大作用,但削弱作用并不会立即产生,Corti器存在维持正常功能的“缓冲”阶段。在100 dB和120 dB之间可能存在一个声压级临界值,在该临界值两侧外柱细胞软化对基底膜应力变化的影响是截然相反的。另外外柱细胞软化对不同外毛细胞与Deiters细胞结合点力学行为的影响也不同,位移增益优先级会因此产生改变。     

A study on the role of noninvasive ventilation in mild-to-moderate acute respiratory distress syndrome

Aim:There is sparse data on the role of noninvasive ventilation (NIV) in acute respiratory distress syndrome (ARDS) from India. Herein, we report our experience with the use of NIV in mild to moderate ARDS.Results:A total of 41 subjects (27 women, mean age: 30.9 years) were included in the study. Tropical infections followed by abdominal sepsis were the most common causes of ARDS. The use of NIV was successful in 18 (44%) subjects, while 23 subjects required intubation. The median time to intubation was 3 h. Overall, 19 (46.3%) deaths were encountered, all in those requiring invasive ventilation. The mean duration of ventilation was significantly higher in the intubated patients (7.1 vs. 2.6 days, P = 0.004). Univariate analysis revealed a lack of improvement in PaO₂/FiO₂ at 1 h and high baseline Acute Physiology and Chronic Health Evaluation II (APACHE II) as predictors of NIV failure.Conclusions:Use of NIV in mild to moderate ARDS helped in avoiding intubation in about 44% of the subjects. A baseline APACHE II score of >17 and a PaO₂/FiO₂ ratio <150 at 1 h predicts NIV failure.     

Efficacy of continuous positive airway pressure treatment on 5‐year survival in patients with ischaemic stroke and obstructive sleep apnea: a randomized controlled trial

The main purpose of the present analysis is to assess the influence of introducing early nasal continuous positive airway pressure (nCPAP) treatment on cardiovascular recurrences and mortality in patients with a first‐ever ischaemic stroke and moderate–severe obstructive sleep apnea (OSA) with an apnea–hypopnea index (AHI) ≥20 events h^?1 during a 5‐year follow‐up. Patients received conventional treatment for stroke and were assigned randomly to the nCPAP group (n = 71) or the control group (n = 69). Cardiovascular events and mortality were registered for all patients. Survival and cardiovascular event‐free survival analysis were performed after 5‐year follow‐up using the Kaplan–Meier test. Patients in the nCPAP group had significantly higher cardiovascular survival than the control group (100 versus 89.9%, log‐rank test 5.887; P = 0.015) However, and also despite a positive tendency, there were no significant differences in the cardiovascular event‐free survival at 68 months between the nCPAP and control groups (89.5 versus 75.4%, log‐rank test 3.565; P = 0.059). Early nCPAP therapy has a positive effect on long‐term survival in ischaemic stroke patients and moderate–severe OSA.     

连续性静脉-静脉血液透析在重症肾综合征出血热合并急性呼吸窘迫综合征治疗中的应用

目的探讨连续性静脉-静脉血液透析(CVVHD)在重症肾综合征出血热(HFRS)合并急性呼吸窘迫综合征(ARDS)治疗中的作用。方法 15例重症HFRS合并ARDS病人,其中男性11例,女性4例;年龄22~68岁,平均年龄45岁。在一般治疗、机械通气基础上采用CVVHD治疗,治疗前及治疗过程中检测血气指标(pH、氧分压、二氧化碳分压、氧分压/吸入氧浓度、氧饱和度)、肿瘤坏死因子(TNF-α)、白细胞介素6(IL-6)、白细胞介素10(IL-10),治疗前后检测肾功能。结果 15例病人存活12例,存活率80%(12/15)。治疗过程中血气指标平稳改善,治疗前后细胞因子TNF-α、IL-6、IL-10明显下降,肾功能改善明显。结论 CVVHD治疗可通过有效清除异常分泌的细胞因子改善ARDS,对HFRS合并ARDS有一定的治疗作用。