设置呼吸机气道高压上限及触发灵敏度对急诊科心肺复苏患者血氧饱和度的影响

(整期优先)网络出版时间:2022-06-16
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设置呼吸机气道高压上限及触发灵敏度对急诊科心肺复苏患者血氧饱和度的影响

董巧丽

寿光市人民医院器械科,山东 寿光 262700

【摘要】目的:探究设置呼吸机气道高压上限及触发灵敏度对急诊科心肺复苏患者血氧饱和度(SPO2)的影响。方法:选取我院2017年3月~2019年1月急诊科心肺复苏患者72例,根据呼吸机参数不同分组,各36例。对照组设置气道高压上限、触发灵敏度分别为40cm H2O水平、-2~-1cm H2O。观察组于对照组基础上调节气道高压上限、触发灵敏度分别至60cm H2O、最大绝对值(20cm H2O)。对比两组SPO2在60%~79%、80%~89%、SPO2≥90%发生率及复苏过程中SPO2、报警事件发生情况。结果:观察组SPO2在60%~79%、80%~89%(即SPO2<90%)发生率低于对照组,SPO2≥90%发生率高于对照组(P<0.05);观察组SPO2(89.75±5.61)%高于对照组(83.56±6.18)%,报警事件次数(5.19±1.42)次低于对照组(5.19±1.42)次(P<0.05)。结论:急诊科心肺复苏患者容量控制(VCV)模式下采用减速波,调节气道高压上限、触发灵敏度分别至60cm H2O、最大绝对值(20cm H2O),可促进人机协调,减少通气频率发、报警事件发生,提高SPO2

【关键词】气道高压上限;呼吸机;触发灵敏度;心肺复苏;血氧饱和度


The Effect of Ventilator Airway High Pressure Upper Limit and Trigger Sensitivity on Blood Oxygen Saturation in Patients with Emergency Cardiopulmonary Resuscitation

DONG Qiao-li

Department of Instruments,Shouguang People's Hospital,Shouguang Shandong 262700,China

AbstractObjective:To investigate the effect of setting the upper limit of ventilator airway pressure and trigger sensitivity on blood oxygen saturation(SpO2) in emergency department cardiopulmonary resuscitation patients.Methods:A total of 72 patients with emergency cardiopulmonary resuscitation from March 2017 to January 2019 in our hospital were enrolled.According to different ventilator parameters,36 patients were included in each group.The upper limit of the airway pressure and the trigger sensitivity were 40 cm H2O level and-2 to-1 cm H2O respectively in the control group.The observation group adjusted the upper limit of the airway pressure and the trigger sensitivity to 60 cm H2O and the absolute maximum value(20 cmH2O) on the basis of the control group.The incidence of SpO2 and alarm events occurred in the two groups of SpO2 at 60%-79%,80%-89%,SpO2≥90%and during resuscitation.Results:The incidence of SpO2 in the observation group was 60%-79%,80%-89%(ie SpO2<90%),which was lower than that in the control group.The incidence of SPO2≥90%was higher than that of the control group(P<0.05).The SpO

2 of the observation group was(89.75±5.61)%,which was higher than that of the control group(83.56±6.18)%,and the number of alarm events(5.19±1.42) times in the observation group was lower than that in the control group(5.19±1.42) times(P<0.05).Conclusion:In the emergency department cardiopulmonary resuscitation (VCV)mode,the deceleration wave is used to adjust the upper limit of the airway pressure and the trigger sensitivity to 60cm H2O and the absolute maximum value(20cm H2O)respectively,which can promote the coordination of human and machine,reduce the frequency of ventilation and alarm and the event occurred and improve the SpO2.

Key wordsupper airway pressure limit;ventilator;trigger sensitivity;cardiopulmonary resuscitation;blood oxygen saturation


近年来,随着急诊医学的不断发展,心肺复苏处理方法不断更新。急诊科心肺复苏患者需及时给予气管插管、机械通气,以维持呼吸充足,同时需给予心脏按压,帮助心脏输送血液,避免脏器缺氧性坏死[1]。但常规呼吸机参数设置下,心肺复苏过程中,呼吸机易发生低潮气量报警、气道高压报警等,对呼吸机正常运转造成严重影响,进而对患者的呼吸支持效果产生影响[2]。报道如下。

1资料与方法

1.1一般资料

经我院伦理委员会同意批准,选取2017年3月~2019年1月急诊科心肺复苏患者72例,根据呼吸机参数不同分组,各36例。对照组女15例,男21例,年龄36~71岁,平均年龄(53.12±7.53)岁,体质量45~78kg,平均体质量(56.09±5.18),心搏骤停时间0.6~2.3min,平均心搏骤停时间(1.48±0.31)min;观察组女16例,男20例,年龄35~73岁,平均年龄(54.06±7.68)岁,体质量45~79kg,平均体质量(56.31±5.20),心搏骤停时间0.6~2.4min,平均心搏骤停时间(1.51±0.33)min。两组基线资料均衡可比(P>0.05)。

1.2纳入与排除标准

(1)纳入标准:均为心搏骤停需心肺复苏;患者家属知情并签署承诺书。(2)排除标准:胸部创伤;恶性肿瘤;胸廓畸形;肺水肿。

1.3方法

呼吸机参数:伟康Esprit呼吸机,参考急救指南[3],呼吸频率10次/min,潮气量7ml/kg,容量控制(VCV)模式下减速波,峰流速40L/min。对照组设置气道高压上限、触发灵敏度分别为40cm H2O水平、-2~-1cm H2O;胸外按压平稳后连续2min内记录SpO2值(1个/10s)、报警事件发生次数。观察组调节气道高压上限、触发灵敏度分别至60cm H2O、最大绝对值(20cm H2O),记录SpO2值、报警事件发生次数。

1.4观察指标

(1)对比两组SPO2在60%~79%、80%~89%、SpO2≥90%发生率。(2)对比两组复苏过程中SpO2及报警事件发生情况。

1.5统计学分析

运用SPSS21.0分析,计量资料以(62aadce3bcd9d_html_195cca9870952b42.gif ±s)表示,t检验,计数资料以n(%)表示,χ2检验,P<0.05表示差异有统计学意义。

2结果

2.1不同SpO2区间变化情况

观察组SpO2在60%~79%、80%~89%(即SPO2<90%)发生率低于对照组,SpO2≥90%发生率高于对照组(P<0.05)。见表1。

1两组不同SPO2区间变化情况对比[n(%)]

组别

例数

SpO2<90%发生率

SpO2≥90%发生率

60%~79%

80%~89%

合计

观察组

36

2(5.56)

7(19.44)

9(25.00)

27(75.00)

对照组

36

6(16.67)

13(36.11)

19(52.78)

17(47.22)

χ2




5.844

5.844

P




0.016

0.016

3讨论

突发心脏骤停可引起有效循环、心泵功能突然中止,导致全身组织细胞发生严重缺氧、代谢、缺血障碍。

综上可知,急诊科心肺复苏患者容量控制(VCV)模式下采用减速波,调节气道高压上限、触发灵敏度分别至60cm H2O、最大绝对值(20cm H2O),可促进人机协调,减少通气频率发、报警事件发生,提高SpO2

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[6]张历,赵发启,王明春.心肺复苏持续胸外心脏按压时呼吸机分钟通气量与气道高压报警值设置的研究[J].中国社区医师,2018,34(31):59,61.

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收稿日期:2021年2月17日

出刊日期:2021年7月25日

引用本文:董巧丽.设置呼吸机气道高压上限及触发灵敏度对急诊科心肺复苏患者血氧饱和度的影响[J].当代介入医学, 2021, 1(13) : 1-2. DOI: 10.12208/j.jcim.2021.13.020


Copyright:© 2021 by author(s) and Open Access Journal Research Center.

This work is licensed under the Creative Commons Attribution International License (CC BY 4.0).http://creativecommons.org/licenses/by/4.0/

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