Anaesthetic consideration for neonatal surgical emergencies

Resuscitation strategies for surgical patients in the neonatal intensive care unit

Resuscitation of an infant with surgical complications includes both perioperative and post-operative management. In most cases this requires a multidisciplinary approach to achieve the best outcomes. Challenges include immediate expert management at infant delivery with the use of protocolized care, available anesthesia expertise, close monitoring of electrolytes with prompt attention to fluid status, and meticulous pain management. In this review, we will address contemporary research and ongoing challenges associated with resuscitation. We will make recommendations for effective resuscitation of this vulnerable and unique population from premature infant to term infant with complex surgical needs.

Comparison of the effectiveness of intravenous fentanyl versus caudal epidural in neonates undergoing tracheoesophageal fistula surgeries

Background:

Caudal epidural has become an inseparable part of pediatric pain relief as it depresses the stress response better than any other form of analgesia, resulting in the reduction in the need for systemic opioids; in addition, it facilitates early recovery and promotes good postoperative respiratory functions.

Aim:

To evaluate the effectiveness of epidural analgesia in neonates undergoing tracheoesophageal fistula repair in terms of requirement of perioperative fentanyl opioid, postoperative neonatal infant pain score (NIPS), on-table extubation, duration of intubation, reintubation, perioperative hemodynamic response, and any other side effects.

Materials and Methods:

A comparative, prospective, single-blind, randomized trial on 30 neonates scheduled for tracheoesophageal surgeries were randomly allocated to two groups: group I: neonates receiving caudal epidural block with ropivacaine 0.2%, 1 mg/kg bolus followed by infusion 0.1 mg/kg/h; group II: neonates receiving initial intravenous [IV] fentanyl 1 ug/kg and maintenance with 0.5 μg/kg/h IV bolus.

Results:

None of the neonates received opioids in group I. There were statistically significant differences in the mean NIPS at 30, 60, 90, 120 150, and 240-min intervals between group I and group II. Further, 80% of neonates were extubated in group 1 compared to 50% in group II, which was statistically significant (P = 0.025). The duration of intubation was more in group II compared to group I, with a suggestive significance of P = 0.093.

Conclusion:

Caudal epidural infusion provides adequate perioperative analgesia, promotes rapid weaning from the ventilator, and contributes to a successful outcome.

Neonatal anesthesia in low birth weight babies at Hospital Nacional Guido Valadares, Dili, Timor-Leste

Over a 6-month period, eight neonates weighing less than 3 kg were operated on at Hospital Nacional Guido Valadares, Dili, Timor-Leste. Each was operated on for an abdominal condition. There is no postoperative neonatal ventilation, neonatal inotropes, fluid warmers, or parenteral nutrition available at Hospital Nacional Guido Valadares. Medical air and nitrous oxide are unavailable. Oxygen from cylinders is the only gas available in theaters and on the wards. Generally equipment is problematic and not designed for neonates. Five of these infants perished in hospital perioperatively, representing an in-hospital mortality of 62%, another is presumed to have died following discharge, and two recovered well. This represents an estimated overall mortality rate of 75%. This is not surprising given the difficult circumstances in theater and the limited postoperative support services available. The resources and time deployed in operating on these small neonates is significant. As difficult as it may be surgical enthusiasm and the uncertainties surrounding prognostication should not displace practical and realistic assessment of the likely outcome of operating on very small babies in low resource facilities where perioperative support is limited. Future development in the Timor-Leste healthcare sector will hopefully provide an environment where improvements in outcome can be achieved.