• B J Nelson, C R Weinert, C L Bury, W A Marinelli, and C R Gross.
• Hennepin County Medical Center, Minneapolis, MN, USA.
• Crit. Care Med. 2000 Nov 1;28(11):3626-30.

ObjectiveTo examine the relationship between the use of sedative and neuromuscular blocking agents during a patient's intensive care unit (ICU) stay and subsequent measures of health-related quality of life.DesignCross-sectional mail survey and retrospective medical record abstraction of a prospectively identified cohort of lung injury patients.SettingICUs in three teaching hospitals in a major metropolitan area.PatientsPatients with acute lung injury (n = 24).InterventionsNone--observational study.Measurements And Main ResultsPatients' charts were reviewed for those patients returning postdischarge quality-of-life questionnaires. Duration, daily dose, and route of administration for sedatives and neuromuscular blocking agents were abstracted from ICU flow sheets. Relationships among ICU variables (days of sedation, days of neuromuscular blockade, and severity of illness as measured by Acute Physiology and Chronic Health Evaluation III score) and outcomes (symptoms of depression and symptoms of posttraumatic stress disorder) were assessed. Depressive symptoms at follow-up were correlated with days of sedation (p = .007), but not with days of neuromuscular blockade or initial severity of illness. The composite posttraumatic stress disorder symptom impact score was correlated with days of sedation (p = .006) and days of neuromuscular blockade (p = .035), but not with initial severity of illness. There were no significant differences between the frequency of patients reporting a specific posttraumatic stress disorder symptom in the high sedation group and the low sedation group, and there were no significant differences in specific posttraumatic stress disorder symptoms between the group that had received neuromuscular blockade and those who had not.ConclusionsThe use of sedatives and neuromuscular blocking agents in the ICU is positively associated with subsequent measures of depression and posttraumatic stress disorder symptoms 6-41 months after ICU treatment for acute lung injury.

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