Emergency management and resuscitation of poisoned patients: perspectives from "down under"

The impact of the introduction of a toxicology service on the intensive care unit

Objective: To examine the impact of a clinical toxicology service on toxicology patients admitted to an intensive care department Methods: The authors performed a retrospective chart audit of all patients presenting to Cairns Emergency Department (ED) over a five-year period from 2011 to 2016 with a toxicology diagnosis requiring Intensive Care Unit (ICU) admission. They were divided into two groups: pre-toxicology (1 April 2011 to 30 September 2012), and post-toxicology service (1 October 2012 to 31 of March 2016) introduction. Patients were identified using ED and ICU databases. Patient charts were manually searched, and data entered on a preformatted data extraction tool. The data were statistically compared pre- versus post-toxicology service introduction using univariate (t-tests and Pearson's Chi Square) and multivariate modelling. Where appropriate, continuous variables were log transformed to enable parametric analyses. Results: There were 37 patients in the pre-toxicology and 102 in the post-toxicology group, with an increased median APACHE III J score in the post toxicology group (39 vs. 49). The introduction of a toxicology service was associated with statistically significant reductions in median ICU length of stay (LOS) (32.9 vs. 20.6 h), median duration of mechanical ventilation (29.1 vs. 20.6 h) and median time to psychiatry review (19.4 vs. 6.7 h). The reduction in ICU LOS remained statistically significant (p = 0.036) when adjusted by sex, age and duration of mechanical ventilation. There was neither increase in mortality, nor readmissions from EDSSU to ICU. Conclusions: This study has demonstrated that the introduction of a toxicology service was associated with a reduction in median ICU LOS, duration of mechanical ventilation and time to psychiatric review in patients with a toxicology diagnosis admitted to our ICU.

Deliberate self-poisoning presenting to an emergency medicine network in South-East melbourne: a descriptive study

Background. Deliberate self-poisoning (DSP) comprises a small but significant proportion of presentations to the emergency department (ED). However, the prevalence and patient characteristics of self-poisoning attendances to EDs in Victoria have not been recently characterised. Aim. To identify and compare the characteristics of adult patients presenting to the three EDs of Monash Health following DSP. Methods. Retrospective clinical audit of adult DSP attendances between 1st July 2009 and 30th June 2012. Results. A total of 3558 cases over three years were identified fulfilling the search criteria. The mean age of patients was 36.3 years with the largest numbers aged between 18 and 30 (38%). About 30% of patients were born overseas. Forty-eight percent were discharged home, 15% were admitted to ED short stay units, and 5% required ICU admission. The median ED length of stay was 359 minutes (IQR 231–607). The most frequently reported substances in DSP were benzodiazepines (36.6%), paracetamol (22.2%), and antipsychotics (12.1%). Exposure to more than one substance for the episode of DSP was common (47%). Conclusion. This information may help identify the trends in poisoning substances used for DSP in Victoria, which in turn may provide clinicians with information to provide more focused and targeted interventions.