Severe agitation among ventilated medical intensive care unit patients: Frequency, characteristics and outcomes

To determine the frequency, characteristics and outcomes of severe agitation among ventilated medical intensive care unit (MICU) patients. Prospective cohort study. Eighteen-bed MICU in 964-bed tertiary care center. All ventilated patients, aged 18 years or older and admitted for more than 24 h betw...

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Veröffentlicht in:Intensive care medicine 2004-06, Vol.30 (6), p.1066-1072
Hauptverfasser: WOODS, Jeffery C, MION, Lorraine C, CONNOR, Jason T, VIRAY, Florence, JAHAN, Lisa, HUBER, Cecilia, MCHUGH, Renee, GONZALES, Jeffrey P, STOLLER, James K, ARROLIGA, Alejandro C
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container_end_page 1072
container_issue 6
container_start_page 1066
container_title Intensive care medicine
container_volume 30
creator WOODS, Jeffery C
MION, Lorraine C
CONNOR, Jason T
VIRAY, Florence
JAHAN, Lisa
HUBER, Cecilia
MCHUGH, Renee
GONZALES, Jeffrey P
STOLLER, James K
ARROLIGA, Alejandro C
description To determine the frequency, characteristics and outcomes of severe agitation among ventilated medical intensive care unit (MICU) patients. Prospective cohort study. Eighteen-bed MICU in 964-bed tertiary care center. All ventilated patients, aged 18 years or older and admitted for more than 24 h between January 1, 2001 and May 8, 2001. None. Data were collected daily by concurrent chart abstractions. Variables included sociodemographic, clinical, laboratory, pharmacologic and non-pharmacologic interventions, ventilator settings and adverse events. Severe agitation, the main outcome variable, was defined as two or more Motor Activity Assessment Scale (MAAS) scores above 4 in a 24-h period and sedative and/or narcotic doses above the established sedation and analgesia protocol or a combination of two or more sedatives. Twenty-three (16.1%) of 143 enrolled patients exhibited severe agitation. Agitated patients were younger (hazard ratio [HR] 1.32), more likely to be admitted from an outside hospital ICU (HR 2.48), had lower pH (HR 1.55) and PaO(2)/FIO(2) less than 200 mmHg (HR 2.59). Agitated patients had longer MICU stays (median 12 versus 5 days, p
doi_str_mv 10.1007/s00134-004-2193-9
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Prospective cohort study. Eighteen-bed MICU in 964-bed tertiary care center. All ventilated patients, aged 18 years or older and admitted for more than 24 h between January 1, 2001 and May 8, 2001. None. Data were collected daily by concurrent chart abstractions. Variables included sociodemographic, clinical, laboratory, pharmacologic and non-pharmacologic interventions, ventilator settings and adverse events. Severe agitation, the main outcome variable, was defined as two or more Motor Activity Assessment Scale (MAAS) scores above 4 in a 24-h period and sedative and/or narcotic doses above the established sedation and analgesia protocol or a combination of two or more sedatives. Twenty-three (16.1%) of 143 enrolled patients exhibited severe agitation. Agitated patients were younger (hazard ratio [HR] 1.32), more likely to be admitted from an outside hospital ICU (HR 2.48), had lower pH (HR 1.55) and PaO(2)/FIO(2) less than 200 mmHg (HR 2.59). Agitated patients had longer MICU stays (median 12 versus 5 days, p&lt;0.0001) and more ventilator days (median 14 versus 6, p&lt;0.0001). Agitated patients were more likely to self-extubate (26% versus 6%, p=0.002). Benzodiazepines, narcotics and neuromuscular blocking agents were administered more frequently and at higher doses, but haloperidol was not. Severe agitation occurs commonly in critically ill patients and is associated with adverse events including longer ICU stays, duration of mechanical ventilation and self-extubation.</description><identifier>ISSN: 0342-4642</identifier><identifier>EISSN: 1432-1238</identifier><identifier>DOI: 10.1007/s00134-004-2193-9</identifier><identifier>PMID: 14966671</identifier><identifier>CODEN: ICMED9</identifier><language>eng</language><publisher>Heidelberg: Springer</publisher><subject>Adult ; Aged ; Anesthesia ; Anesthesia. Intensive care medicine. Transfusions. 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Prospective cohort study. Eighteen-bed MICU in 964-bed tertiary care center. All ventilated patients, aged 18 years or older and admitted for more than 24 h between January 1, 2001 and May 8, 2001. None. Data were collected daily by concurrent chart abstractions. Variables included sociodemographic, clinical, laboratory, pharmacologic and non-pharmacologic interventions, ventilator settings and adverse events. Severe agitation, the main outcome variable, was defined as two or more Motor Activity Assessment Scale (MAAS) scores above 4 in a 24-h period and sedative and/or narcotic doses above the established sedation and analgesia protocol or a combination of two or more sedatives. Twenty-three (16.1%) of 143 enrolled patients exhibited severe agitation. Agitated patients were younger (hazard ratio [HR] 1.32), more likely to be admitted from an outside hospital ICU (HR 2.48), had lower pH (HR 1.55) and PaO(2)/FIO(2) less than 200 mmHg (HR 2.59). Agitated patients had longer MICU stays (median 12 versus 5 days, p&lt;0.0001) and more ventilator days (median 14 versus 6, p&lt;0.0001). Agitated patients were more likely to self-extubate (26% versus 6%, p=0.002). Benzodiazepines, narcotics and neuromuscular blocking agents were administered more frequently and at higher doses, but haloperidol was not. Severe agitation occurs commonly in critically ill patients and is associated with adverse events including longer ICU stays, duration of mechanical ventilation and self-extubation.</description><subject>Adult</subject><subject>Aged</subject><subject>Anesthesia</subject><subject>Anesthesia. Intensive care medicine. Transfusions. 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Prospective cohort study. Eighteen-bed MICU in 964-bed tertiary care center. All ventilated patients, aged 18 years or older and admitted for more than 24 h between January 1, 2001 and May 8, 2001. None. Data were collected daily by concurrent chart abstractions. Variables included sociodemographic, clinical, laboratory, pharmacologic and non-pharmacologic interventions, ventilator settings and adverse events. Severe agitation, the main outcome variable, was defined as two or more Motor Activity Assessment Scale (MAAS) scores above 4 in a 24-h period and sedative and/or narcotic doses above the established sedation and analgesia protocol or a combination of two or more sedatives. Twenty-three (16.1%) of 143 enrolled patients exhibited severe agitation. Agitated patients were younger (hazard ratio [HR] 1.32), more likely to be admitted from an outside hospital ICU (HR 2.48), had lower pH (HR 1.55) and PaO(2)/FIO(2) less than 200 mmHg (HR 2.59). Agitated patients had longer MICU stays (median 12 versus 5 days, p&lt;0.0001) and more ventilator days (median 14 versus 6, p&lt;0.0001). Agitated patients were more likely to self-extubate (26% versus 6%, p=0.002). Benzodiazepines, narcotics and neuromuscular blocking agents were administered more frequently and at higher doses, but haloperidol was not. Severe agitation occurs commonly in critically ill patients and is associated with adverse events including longer ICU stays, duration of mechanical ventilation and self-extubation.</abstract><cop>Heidelberg</cop><cop>Berlin</cop><pub>Springer</pub><pmid>14966671</pmid><doi>10.1007/s00134-004-2193-9</doi><tpages>7</tpages><oa>free_for_read</oa></addata></record>
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subjects Adult
Aged
Anesthesia
Anesthesia. Intensive care medicine. Transfusions. Cell therapy and gene therapy
Biological and medical sciences
Central Nervous System Depressants - therapeutic use
Clinical outcomes
Cohort analysis
Critical care
Drug dosages
Female
Humans
Intensive care
Intensive care medicine
Intensive Care Units - statistics & numerical data
Length of stay
Male
Medical sciences
Middle Aged
Multivariate Analysis
Nursing education
Ohio - epidemiology
Patients
Proportional Hazards Models
Prospective Studies
Psychomotor Agitation - diagnosis
Psychomotor Agitation - epidemiology
Psychomotor Agitation - prevention & control
Respiration, Artificial
Risk Factors
Treatment Outcome
Ventilators
title Severe agitation among ventilated medical intensive care unit patients: Frequency, characteristics and outcomes
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