Inappropriate ventilator triggering caused by an in-line suction catheter

被引:10
作者
Al-Khafaji, A
Manning, HL
机构
[1] Dartmouth Hitchcock Med Ctr, Dept Med & Physiol, Lebanon, NH 03756 USA
[2] Dartmouth Hitchcock Med Ctr, Dept Med, Lebanon, NH 03756 USA
关键词
mechanical ventilators; positive end-expiratory pressure; suction; triggering; air leak;
D O I
10.1007/s00134-002-1239-0
中图分类号
R4 [临床医学];
学科分类号
1002 ; 100602 ;
摘要
Objective: To examine the phenomenon of inappropriate triggering caused by an in-line suction catheter. Design: We used a test lung to assess inappropriate triggering in four ventilators with both pressure and flow triggering. Results: With pressure triggering, inappropriate triggering occurred only in the presence of PEEP. However, with flow triggering, inappropriate triggering occurred both with and without PEEP. Inappropriate triggering did not occur in a model of severe airflow obstruction. Conclusion: In-line suction catheters may lead to inappropriate triggering and potentially dangerous increases in delivered ventilation.
引用
收藏
页码:515 / 519
页数:5
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