[Postoperative on-demand analgesia with fentanyl using the CODIC infusion system. Initial clinical experiences]

Area of Science:

• Anesthesiology
• Pharmacology
• Pain Management

Context:

• Postoperative pain management is crucial for patient recovery.
• Major gynecological surgery often involves significant postoperative pain.
• Patient-controlled analgesia (PCA) offers a method for patients to manage their own pain relief.

Purpose:

• To evaluate the efficacy of postoperative patient-controlled analgesia (PCA) with intravenous fentanyl.
• To assess pain relief and fentanyl consumption in patients undergoing major gynecological surgery.
• To analyze the pattern of fentanyl administration and its correlation with pain scores.

Summary:

• Twenty-four patients (ASA I-III) received intravenous fentanyl via PCA using the CODIC programmable infusion system after major gynecological surgery.
• A specific algorithm adjusted demand doses to decline pseudo-exponentially, with a 4-minute lockout time.
• The average PCA duration was 16.6 hours, with a total fentanyl infusion of 409 micrograms. Patients reported moderate pain throughout the study period.
• Half of the total fentanyl dose was administered within the first 6 hours, coinciding with significantly better pain relief compared to the later period.

Impact:

• This study highlights the effectiveness of PCA with fentanyl in managing postoperative pain following gynecological procedures.
• The findings suggest that initial high demand for analgesia is common, with diminishing needs over time.
• Understanding these patterns can inform optimized PCA protocols for improved patient outcomes and satisfaction.