Gunderson L P, McPhee A J, Donovan E F
Am J Dis Child. 1986 May;140(5):462-5. doi: 10.1001/archpedi.1986.02140190072029.
Ventilator adapters that permit endotracheal suction without disconnection from mechanical ventilation may overcome several of the theoretical contributors to the hypoxia and bradycardia associated with neonatal endotracheal suction. Such an adapter allows for partially ventilated endotracheal suction (PVETS) as opposed to traditional, nonventilated endotracheal suction. To test the clinical value of PVETS using an endhole adapter, changes in transcutaneous partial pressure of oxygen and heart rate were compared during paired PVETS and nonventilated endotracheal suction events on 32 occasions in 11 premature neonates with respiratory distress syndrome. Partially ventilated endotracheal suction was associated with a significant decrease in the incidence and severity of hypoxic events. Partially ventilated endotracheal suction, however, did not affect the incidence of bradycardic events; PVETS had a small but statistically significant effect on reducing the severity of bradycardia. No clear relationship between bradycardic and hypoxic events was evident.
允许在不脱离机械通气的情况下进行气管内吸引的呼吸机适配器，可能会克服一些与新生儿气管内吸引相关的缺氧和心动过缓的理论因素。这种适配器允许进行部分通气的气管内吸引（PVETS），这与传统的非通气气管内吸引相反。为了使用端孔适配器测试PVETS的临床价值，在11例患有呼吸窘迫综合征的早产儿的32次配对的PVETS和非通气气管内吸引事件中，比较了经皮氧分压和心率的变化。部分通气的气管内吸引与缺氧事件的发生率和严重程度显著降低有关。然而，部分通气的气管内吸引并不影响心动过缓事件的发生率；PVETS对降低心动过缓的严重程度有微小但在统计学上有显著意义的影响。心动过缓和缺氧事件之间没有明显的关系。
