In this study, premedication with oral clonidine appeared to be superior to oral midazolam. Quality of mask acceptance was comparable between groups, but oral clonidine was better accepted by the child, produced more effective preoperative sedation, showed a trend towards better recovery from anesthesia and had a higher degree of parental satisfaction.
Melatonin was effective for steal induction in 75% of children compared to 88% of children who had clonidine. Melatonin resulted less effective when administered early in the morning.
Intranasal clonidine administration has no advantage over the oral route. Clinical effects were similar with both routes; there was a trend towards a faster onset of sedation with oral clonidine. Clonidine premedication causes light sleep, which allows a steal-induction in 60% of patients.
A high rate of fHb is released during paediatric surgery with CPB in infants. fHb mainly depends on the left atrial venting flow rate and CPB duration. However, such peaks of fHb levels were not associated with renal dysfunction.
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