Postoperative analgesia after spinal blockade in infants and children undergoing cardiac surgery

Area of Science:

• Anesthesiology
• Pediatric Cardiac Surgery
• Pain Management

Background:

• Opioid analgesics are commonly used for postoperative pain control in pediatric cardiac surgery.
• Remifentanil-based anesthesia is effective but may require significant opioid supplementation.
• Spinal anesthetic blockade offers potential for enhanced analgesia.

Purpose of the Study:

• To compare opioid analgesic requirements after remifentanil-based anesthesia with or without spinal anesthetic blockade in children undergoing open-heart surgery.
• To evaluate pain scores and fentanyl consumption in the postoperative period.
• To assess the safety and efficacy of combined spinal and remifentanil anesthesia.

Main Methods:

• Prospective, randomized, controlled clinical trial involving 45 pediatric patients.
• Anesthesia maintained with remifentanil and isoflurane.
• Intervention group received spinal anesthetic blockade with tetracaine and morphine.
• Postoperative pain assessed using pain scores and patient-controlled analgesia fentanyl administration.
• Data collected for 24 hours post-extubation.

Main Results:

• The spinal anesthetic blockade group (SAB+REMI) demonstrated significantly lower pain scores at 8 and 24 hours compared to the remifentanil-only group (REMI).
• Patients in the SAB+REMI group received significantly less intravenous fentanyl for pain management during the first 8 hours and overall 24 hours.
• No significant differences were observed in adverse effects between the two groups.

Conclusions:

• Combining spinal anesthetic blockade with remifentanil-based anesthesia effectively reduces opioid requirements and improves pain control in children after open-heart surgery.
• This multimodal approach appears safe and well-tolerated in the pediatric population.
• Spinal anesthetic blockade is a valuable adjunct for postoperative analgesia in pediatric cardiac surgery.