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Online ISSN 1827-1596
Lihua PENG, Li REN, Peipei QIN, Min SU
Department of Anesthesia and Pain Medicine, First Affiliated Hospital of Chongqing Medical University, Chongqing, China
BACKGROUND: Postoperative pain is a major disease burden after surgery. Patient-controlled analgesia has been wide used for pain management in surgical patients, yet, large-scaled studies are lacking to assess its impact on the prognosis of patients.
METHODS: We prospectively enrolled patients who underwent major abdominal surgeries receiving patient-controlled analgesia (PCA) and who received non-PCA for assessment of 60-day mortality, major postoperative complications using electronic medical chart system. Pain intensity was also assessed with visual analogue scale from postoperative day 1 to day 7, chronic post-surgical pain was assessed by telephone follow-up using numerical rating scale.
RESULTS: In total, 12,015 patients were included in the primary analysis. At the end of the follow-up, 1185 patients were lost to follow-up. Patients in the non-PCA group reported increased incidence of moderate-to-severe pain on postoperative day 3 (6.5% versus 9.6%, P<0.001). Patients receiving non-PCA had increased mortalities on postoperative 60-day (1.02% versus 0.47%, P<0.001). The survival probability of patients in PCA group was statistically higher than those in non-PCA group (99.52% [95% CI: 99.34-99.70%] versus 98.97% [95% CI: 98.73-99.92%]). Patient receiving non-PCA reported increased in-hospital major complications compared with (2.7% versus 1.9 %, P=0.003). Pain intensity was also assessed with visual analogue scale from postoperative day 1 to day 7, chronic post-surgical pain was assessed by telephone follow-up using numerical rating scale.
CONCLUSIONS: Intravenous patient-controlled analgesia was related to improved survival, less complications and chronic post-surgical pain after major abdominal surgery, reiterating the important role of pain management for the prognosis of patients who underwent surgery.