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A comparative study of two remifentanil doses for procedural pain in ventilated preterm infants: a randomized, controlled study*.

Shin, SH | Kim, HS | Lee, J | Choi, KY | Lee, JH  | Kim, EK | Park, MS  | Choi, JH
Pediatric critical care medicine, 15(5). : 451-455, 2014
Journal Title
Pediatric critical care medicine
OBJECTIVES: Remifentanil is an ultrashort-acting synthetic opioid, and the

metabolism of which is not influenced by hepatic or renal function. This study

aims to compare the efficacy of two remifentanil doses during procedures in

ventilated preterm infants. DESIGN: Prospective, randomized, double-blind,

noninferiority trial. SETTING: Neonatal ICU. PATIENTS: Preterm infants who were

supported by a mechanical ventilator with tracheal tube and requiring central

venous access. INTERVENTIONS: Two remifentanil dosages were administered in

mechanically ventilated preterm infants during peripherally inserted central

catheter insertion. Fourteen preterm infants were randomly assigned to low-dose

(0.1 mug/kg/min) or high-dose (0.25 mug/kg/min) remifentanil infusion. The

Premature Infant Pain Profile was used to score pain during the procedure, and

changes in the Premature Infant Pain Profile score between needle puncture and

baseline were analyzed to investigate the noninferiority of low-dose to high-dose

remifentanil. Occurrence of cardiorespiratory complications was also recorded.

MEASUREMENTS AND MAIN RESULTS: The median gestational age (minimum, maximum) was

26 weeks (24, 31), and the median birth weight was 825 g (610, 1,280). Changes in

Premature Infant Pain Profile in the high-dose and low-dose groups were 1.43 +/-

3.10 and -0.60 +/- 5.32, respectively. The difference in changes in the Premature

Infant Pain Profile score between the high-dose and low-dose groups was -2.03 +/-

4.13. The corresponding lower limit of one-tailed 97.5% CI was -7.24, below the

noninferiority margin. Apneic events and bradycardia did not occur in the

low-dose group; however, there were three episodes of apnea (42.9%) and one of

bradycardia (14.3%) in the high-dose group (p = 0.683 and 0.366, respectively).

CONCLUSION: For mechanically ventilated preterm infants, the use of remifentanil

at 0.25 mug/kg/min as an analgesic for short procedures represents a therapeutic

option. Our pilot study suggests the need for larger randomized trials.

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Journal Papers > School of Medicine / Graduate School of Medicine > Pediatrics & Adolescent Medicine
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