Increase in the Admission of Stroke Mimics after Change in Emergency Shifts.

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Increase in the Admission of Stroke Mimics after Change in Emergency Shifts.

Cerebrovasc Dis. 2017;44(1-2):68-74

Authors: Vargas M, Costa M, Pinho E Melo T, Ferro JM, Fonseca AC

Abstract
BACKGROUND: In 2010, changes were made to the shift pattern of neurology residents for cover in the Emergency Department at a university hospital. This resulted in a decrease in the number of emergency hours worked by neurology specialists and allowed for a natural quasi-experiment.
AIM: We aimed to evaluate if changes to the number of emergency hours worked by neurology residents and specialist neurologists, (intervention) altered the number or pattern of admitted stroke mimics (SMs).
METHODS: Observational retrospective study from January 2007 to December 2013. Time of intervention was set as August 2010. We used a segmented linear regression - ARIMA - to evaluate changes in the temporal pattern of admitted SMs. A statistical correlation between the number of emergency hours worked by neurology residents and the number of admitted SMs was calculated using the Pearson Correlation Coefficient.
RESULTS: Of the 2,552 patients admitted to the stroke unit, 290 were SMs (11.4%). After August 2010, there was an increase in the number of admitted SMs (p = 0.003). After 2010, the most frequent SM diagnosis changed from a psychiatric condition to peripheral vertigo. A positive correlation was found between the number of hours worked primarily by neurology residents and the number of admitted SMs (Pearson correlation coefficient = 0.94; p = 0.002).
CONCLUSIONS: Changes in the pattern of Emergency Department shifts were associated with an increase in the rate of admitted SMs and with a higher number of mimics with a final diagnosis of peripheral vertigo.

PMID: 28467976 [PubMed - indexed for MEDLINE]

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