4.4 Article

Comparison of Patient-Controlled Caudal Epidural Analgesia and Patient-Controlled Intravenous Analgesia After Perianal Surgery: A Randomized Controlled Trial

Journal

PAIN AND THERAPY
Volume 11, Issue 3, Pages 1025-1035

Publisher

SPRINGER INT PUBL AG
DOI: 10.1007/s40122-022-00411-y

Keywords

Patient-controlled caudal epidural analgesia; Patient-controlled intravenous analgesia; Perianal disease; Postoperative pain

Funding

  1. National Key Research and Development Program of China [2021YFC2009100]
  2. National Natural Science Foundation of China [81900064, 82170079]

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This study compared the efficacy of patient-controlled caudal epidural analgesia (PCCA) and patient-controlled intravenous analgesia (PCIA) after perianal surgery, finding that the PCCA group had better analgesic effect compared to the PCIA group, with no significant differences in PCA usage and catheterization rates between the two groups.
Introduction This study aimed to compare the efficacy between patient-controlled caudal epidural analgesia (PCCA) and patient-controlled intravenous analgesia (PCIA) after perianal surgery, to provide a feasible solution to postoperative pain. Methods This was a prospective, randomized controlled trial comprising 100 patients who underwent caudal epidural block on perianal surgery at Chengdu Shang Jin Nan Fu Hospital of West China Hospital at Sichuan University between April and August 2020. Patients were randomly divided into the PCCA and PCIA groups. Visual analog scale (VAS) scores were recorded at 2, 4, 6, 24, 48, and 72 h after surgery, and at the first dressing change and first defecation. The lower limb mobility in the post-anesthetic recovery room (PACU) was determined. The analgesic effect, usage amount of patient-controlled analgesia (PCA), usage amount and frequency of remedial analgesic measures, number of individuals who must be catheterized, and incidence of adverse reactions were recorded. Satisfaction of postoperative analgesic effect and convenience of PCA were also assessed. Results The patients in the PCCA group had significantly lower VAS scores at 4, 6, 24, 48, 72 h, the first dressing change, and the first defecation compared with the PCIA group. There were more patients receiving postoperative remedial analgesics in the PCIA group than in the PCCA group. The outcome of the number of PCA and catheterization rates did not differ significantly between the groups. There were two cases of sensory numbness below the S3 plane. The major postoperative complications in the PCIA group were pruritus (3/47, 6.4%), nausea, and vomiting (6/47, 12.8%) (one case combined with pruritus). Patients in the PCCA group were more satisfied with the analgesic effect, while those in the PCIA group were more satisfied with the convenience. Conclusion In the postoperative analgesia program of perianal surgery, PCCA may provide a better analgesic effect without increasing the incidence of complications.

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