4.5 Article

Effect of Intubation for Gamma-hydroxybutyric Acid Overdose on Emergency Department Length of Stay and Hospital Admission

Journal

ACADEMIC EMERGENCY MEDICINE
Volume 21, Issue 11, Pages 1226-1231

Publisher

WILEY-BLACKWELL
DOI: 10.1111/acem.12516

Keywords

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Funding

  1. Australia National Health and Medical Research Council (NHMRC) [452803]
  2. Australian Government through an Australian Postgraduate Award
  3. NHMRC Centre for Research Excellence into Injecting Drug Use
  4. ARC Future Fellowship
  5. NHMRC Principal Research Fellowship
  6. NHMRC Career Development Fellowship

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ObjectivesThe objective was to examine the effect of endotracheal intubation on emergency department (ED) length of stay (LOS) and admission rates for patients with gamma-hydroxybutyrate (GHB) overdose. MethodsA 3-year retrospective electronic and paper audit of recreational drug presentations was carried out at two major inner-city EDs in Melbourne, Australia. Different GHB overdose management strategies exist at the respective audit sites, namely: 1) all patients with a Glasgow Coma Scale (GCS) score of 8 or less are intubated or 2) uncomplicated patients with GCS scores of 8 or less are managed without intubation (conservative management), unless further complications arise. This difference allows for comparison of the effects of intubation. All suspected GHB-related cases (defined as cases where GHB or its analogs gamma-butyrolactone or 1,4-butanediol were recorded) in which altered consciousness state was noted as a presenting symptom at triage were selected from all recreational drug-related presentations occurring between January 2008 and December 2010. The relationship between intubation and the primary outcome, ED LOS, was examined using robust regression after adjustment for potential confounders. The relationship between intubation and admission status (admission to hospital versus discharge) was also examined using logistic regression. ResultsAfter adjustment for potential confounders such as GCS score, intubation of GHB-related cases in the ED was associated with an increase in mean LOS of 41% (95% confidence interval [CI]=19% to 65%) and an increase in the odds of admission to hospital of 9.95 (95% CI=2.36 to 41.88) at one hospital site, compared to conservative airway management. ConclusionsConservative airway management (no intubation) is associated with shorter ED LOS in cases of uncomplicated GHB-related coma in the ED and may also be associated with lower admission rates for these patients. Resumen ObjetivosExaminar el impacto de la intubacion (endotraqueal) en el tiempo de estancia (TDE) en el Servicio de Urgencias (SU) para la intoxicacion por acido gamma-hidroxibutirico (GHB). MetodologiaSe llevo a cabo una auditoria en papel y electronica retrospectiva de 3 anos de las atenciones por drogas recreativas en 2 grandes SU en Melbourne, Australia. Existen diferentes estrategias de manejo de la intoxicacion por GHB en los sitios auditados, denominadas: 1) todo paciente con una puntuacion de 8 o menos segun la Escala de Coma de Glasgow (ECG) se intuba; o 2) pacientes sin complicaciones con una puntuacion de 8 o menos segun la ECG son manejados sin intubacion (manejo conservador), a menos que surjan complicaciones posteriores. Esta diferencia permite la comparacion de los efectos de la intubacion. Todos los casos relacionados con sospecha de GHB (definido como los casos donde se documento GHB o sus analogos gamma-butirolactona o 1,4-butanediol) en los que se anoto la alteracion del nivel de conciencia como sintoma de presentacion en el triaje se seleccionaron entre todas las atenciones relacionadas con drogas recreativas entre enero 2008 y diciembre de 2010. La relacion entre la intubacion y el resultado principal, el TDE en el SU, se examino utilizando una regresion tras ajustar por los potenciales factores de confusion. La relacion entre la intubacion y el estado al ingreso (ingreso en el hospital frente alta) tambien se examino usando una regresion logistica. ResultadosTras ajustar por los potenciales factores de confusion como la puntuacion segun la ECG, la intubacion de los casos relacionados con GHB en el SU se asocio con un incremento en la media de TDE de un 41% (IC95%=19% a 65%) y un incremento de la razon de ventajas de ingreso en el hospital de 9,95 (IC95%=2,36 a 41,88) en uno de los hospitales en comparacion con el manejo conservador de la via area en el otro hospital. ConclusionesEl manejo conservador de la via aerea (no intubacion) puede ser apropiado en los casos sin complicaciones de coma relacionado con GHB en el SU.

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