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[Glycemic variability and short-term outcome in critically ill].

OBJECTIVE
To analyze the association of blood glucose variability and short-term outcome in critically ill.


METHODS
The retrospective study including 552 patients admitted to the Affiliated Hospital of Inner Mongolia Medical University from January 2013 to March 2015. The initial blood glucose (GluAdm), the first 24 hours average blood glucose(GluMV1d) and glycemic lability index(GLI1d), 72-hour average blood glucose (GluMV3d) and glycemic lability index(GLI3d) were recorded. The receiver operating characteristic curve (ROC curve) was applied to evaluate the association between GluAdm, GLI1d, GLI3d and APACHE Ⅱ score and prognosis.


RESULTS
The levels of APACHE Ⅱ, GluAdm, GLI 1d, GLI 3d of nonsurvivors were higher than those of survivors[(23.2±5.2) vs (16.7±4.4), (12.3±5.2)mmol/L vs(9.2±2.2)mmol/L, (23.3±12.2)vs(12.3±11.1), (21.6±19.3)vs(13.2±9.9), P<0.05]; there was no statistically significant difference between GluMV1d and GluMV3d; when ROC was applied, and the area under the curve (AUC) of APACHEⅡ, GLI1d and GLI3d were 0.826±0.035, 0.726±0.052 and 0.786±0.046, which were significantly higher than the GluMV1d and GluMV3d (0.412±0.031, 0.425±0.026, P<0.05) .It is correlated between GluAdm, GLI1d, GLI3d and the 28-day mortality, ICU days and total time of hospitalization.


CONCLUSION
Blood glucose variability is closely related with the mortality in critical ill patients, GLI1d, GLI3d and APACHEⅡ score of critically ill patients have a similar predictive value in the short-term prognosis.