Assessment of postoperative pain after pressurized intraperitoneal aerosol chemotherapy (PIPAC) in the treatment of peritoneal metastasis
International Journal of Colorectal Disease(2022)
Abstract
Purpose Pressurized intraperitoneal aerosol chemotherapy (PIPAC) is a new surgical technique, for the treatment of initially unresectable peritoneal metastasis (PM). Our objective was to assess postoperative pain and morbidity. Methods Between July 2016 and September 2020, data from 100 consecutive PIPAC procedures with oxaliplatin (PIPAC Ox) or doxorubicin-cisplatin (PIPAC C/D) in 49 patients with PM (all etiologies) were analyzed. Pain was self-assessed using a visual analog scale (VAS) of 0–10. Results The median PIPAC procedures per patient were 2 [1–3]. Patients indicated greatest pain at 4 pm on the day of the procedure (D0) and on postoperative D1 at 8 am and 4 pm. Postprocedural moderate-to-severe pain (VAS 4–10) was more frequent with PIPAC Ox than with PIPAC C/D, respectively 14 (36.8%) vs 7 (13.5%); p = 0.010. Hospitalization was longer for patients with moderate-to-severe pain than for others (median 4 days [3–7] vs 3 days [2–4], p = 0.004). Multivariate analysis identified oxaliplatin as a factor associated with greater pain (OR [95% CI], 2.95 [1.10–7.89]. Opiate administration was similar after PIPAC Ox and PIPAC C/D procedures, p = 0.477. Conclusion PIPAC was well-tolerated, and pain was well-controlled in the majority of patients. Pain was greatest at 4 pm on D0 and 8 am and 4 pm on D1. PIPAC Ox is associated with greater pain than PIPAC C/D, independently of opiate treatment. Moderate-to-severe pain was associated with longer hospital stays.
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Key words
Pressurized intraperitoneal aerosol chemotherapy (PIPAC), Peritoneal carcinoma, Postoperative pain, Treatment of pain
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