ICU无创机械通气患者口渴感水平及影响因素分析

Thirst level and its influencing factors in patients receiving non-invasive mechanical ventilation in ICU

目的探讨ICU无创机械通气患者口渴感水平及影响因素。方法应用口渴数字评分量表(NAS)对108例无创机械通气患者不同时间点的口渴感水平进行调查。结果无创机械通气患者口渴程度随着机械通气时间的延长逐渐加重(P<0.01);口渴评分6.14±1.26。机械通气时间、呼吸型态、吸入潮气量及漏气量、呼吸频率、是否首次使用无创机械通气、面罩舒适度是患者口渴感的影响因素(P<0.05,P<0.01)。结论 ICU无创机械通气患者口渴感发生率高,口渴的发生与机械通气时间、是否首次使用无创机械通气及呼吸频率、面罩匹配度等因素有关,需对患者积极实施干预,预防和减轻患者口渴程度,提高治疗依从性。

Objective To investigate the thirst level and its influencing factors in patients receiving non-invasive mechanical ventilation in ICU.Methods The thirst level of 108 patients on non-invasive mechanical ventilation therapy was investigated at various time points by using the Numeric Rating Scale(NAS).Results The thirst level in patients on non-invasive mechanical ventilation therapy progressed as mechanical ventilation went on, with the NAS score being 6.14±1.26 averagely. Mechanical ventilation time, respiratory patterns, inhaled tidal volume and air leak volume, respiratory frequency, whether being on first time non-invasive mechanical ventilation therapy or not, and face mask matching degree were significant predictors of thirst(P<0.05,P<0.01).Conclusion Thirst occurs with high frequency in patients on non-invasive mechanical ventilation therapy in ICU. The time of mechanical ventilation, respiratory patterns, inhaled tidal volume and air leak volume, whether being on first time non-invasive mechanical ventilation therapy or not, respiratory frequency, face mask matching degree are main risk factors of thirst. Measures should be taken to prevent and mitigate thirst level, and improve treatment compliance.