• E Cidoncha, S Mencía, B Riaño, J Urbano, J López-Herce, and A Carrillo.
• Sección de Cuidados Intensivos Pediátricos, Hospital General Universitario Gregorio Marañón, Madrid, España.
• An Pediatr (Barc). 2009 Mar 1;70(3):218-22.

ObjectivesTo compare the changes in clinical sedation scales, bispectral index (BIS) and physiological variables occurring during tracheal suction in critically ill children.DesignProspective, observational study in critically ill children on mechanical ventilation. BIS value, heart rate (HR), systolic blood pressure (SPB), diastolic blood pressure (DBP), modified Ramsay sedation scale score and the dose of sedative drugs were recorded before and 3 minutes after every tracheal suction.ResultsA total of 83 tracheal suctions were analyzed from 46 children, 1 month to 15 years of age. Most of the children (92%) were receiving continuous infusions of fentanyl and midazolam, and 45.7% of them were receiving vecuronium. The increase in BIS, SPB and DBP values were small but statistically significant (BIS, from 51.8 to 57.3; SBP, from 92.9 to 103.1 mmHg; DBP, from 51.8 to 58.9 mmHg). There was poor correlation between the BIS, HR, SBP and DBP values before and after suction. A total of 87% of patients maintained the same Ramsay score values.ConclusionsTracheal suction produces a slight increase in the BIS and the BP in critically ill children who are receiving sedation by continuous infusion. Most children with adequate sedation do not need any other drugs before the tracheal suction. Physiological variables have no correlation with sedation scales or BIS values during the tracheal suction.

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