• Andreas C Gerber and Markus Weiss.
• Department of Anaesthesia, University Children's Hospital, Zurich, Switzerland. andreas.gerber@kispi.unizh.ch
• Curr Opin Anaesthesiol. 2003 Jun 1; 16 (3): 315-20.

Purpose Of ReviewPostoperative apnoea is known to threaten preterm and ex-preterm infants undergoing surgery for inguinal hernia. Awake regional anaesthesia, initially spinal and later caudal anaesthesia have been suggested as effective techniques to avoid these complications. However, most herniotomies in this group of patients are still performed under general anaesthesia without deleterious consequences. Whereas some experts continue to claim advantages for awake regional over general anaesthesia for preterm infants, others consider awake regional anaesthesia to be an exclusive, technically difficult and unreliable technique of unconfirmed benefit.Recent FindingsIt is appropriate to weigh the scarce available evidence that has been accumulated since 1984, and put it into perspective with new developments in paediatric general anaesthesia. The actual clinical significance of postoperative apnoea and improvements in neonatal and perioperative care and monitoring must also be reconsidered.SummaryThe available evidence does not allow unequivocal conclusions to be drawn or recommendations to be made. Awake regional anaesthesia for herniotomies in preterm infants has been found to be superior in most studies; however, it requires technical expertise and dedication on the part of the anaesthetist and surgeon. When light general anaesthesia with modern anaesthetic agents such as sevoflurane or desflurane is combined with a caudal block, postoperative apnoea is very rare, and can easily be recognized and managed with good postoperative monitoring and therapy.

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