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Canadian Journal of Anesthesia, Vol 39, 944-948, Copyright © 1992 by Canadian Anesthesiologists' Society

ARTICLES

Alfentanil sedation for cardiac catheterization of children with Fontan shunts

P Rautiainen
Department of Anaesthesiology, Children's Hospital, University of Helsinki, Finland.

After Fontan operation, prolonged invasive cardiac assessment is often needed. This study is a clinical evaluation of the effectiveness of flunitrazepam premedication, EMLA cream, and alfentanil continuous infusion for management of children undergoing such catheterization. Fourteen consecutive subjects aged 5-20 yr with Fontan shunts (right atrium to pulmonary artery) undergoing elective haemodynamic and electrophysiological catheterization were sedated with an individually titrated alfentanil infusion. After oral premedication with flunitrazepam 2 mg, the mean induction dose and mean maintenance requirement of alfentanil were 4.4 +/- 2.7 micrograms.kg-1 and 10.3 +/- 8.6 micrograms.kg-1 x hr-1, respectively. Mean oxygen consumption during haemodynamic catheterization was 4.1 +/- 0.4 ml.kg-1 x min-1 with an average individual variation of 10%. For every patient, tranquil and stable conditions during catheterization could be produced. It is concluded that alfentanil infusion is a method of sedation of children and adolescents with Fontan shunts during haemodynamic and electrophysiologic catheterization. However, continuous monitoring of ventilation and an understanding of the slow circulation time after Fontan operation are essential with such sedation in these patients.




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Copyright © 1992 by the Canadian Anesthesiologists' Society.