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Effects of respiratory system elasticity resistance on oxygenation after recruitment maneuvers of ALI patients: a meta-analysis

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Author:
No author available
Journal Title:
CHINESE JOURNAL OF EMERGENCY MEDICINE
Issue:
4
DOI:
10.3760/cma.j.issn.1671-0282.2011.04.003
Key Word:
肺复张;急性肺损伤;肺泡塌陷;呼吸系统弹性阻力;胸腔内压;氧合指数;血压;荟萃分析;Recruitment maneuver;ALI;Alveoli collapse;Respiratory system elasticity resistance;Intrathoracic pressure;Oxygenation;Blood pressure;Meta

Abstract: Objective To investigate the effects of elasticity resistance (Ers) in respiratory system on oxygenation in patients with acute lung injury (ALI) after recruitment maneuvers (RM). Method Meta-analysis of data about the effects of recruitment maneuvers on oxygenation in ALI patients with different elasticity resistances in respiratory system carried out with pooling of study-oriented data stored in Pubmed, Embase, Web of Science databases from January 1999 to June 2010. Results A total of 281 articles were taken, and 20 of them included a sample size of 395 ALI patients. In patients treated with RM in different degrees of respiratory system elasticity resistance ( ≥33.3 cmH2O/L and <33.3 cmH2O/L), the effect of RM was better in patients with the high respiratory system elasticity resistance than that with the low one [(51.97 + 8.89) mmHg vs. (35.13 ± 10.33 ) mmHg], P < 0. 01 ), but the high respiratory system elasticity resistance was potentially to lower blood pressure [(4. 33 ± 1.32 ) mmHg vs. (0.22 ± 1.03 ) mmHg],P < 0.01 ). Conclusions This study suggests RM could improve oxygenation of ALI patients with high respiratory system elasticity resistance, and caution must be made to avoid hypotension during RM.

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