Factors Affecting Unused Remaining Volume of Intravenous Patient-controlled Analgesia in Patients Following Laparoscopic Gynecologic Surgery

• Published in: Asian nursing research 2014, 8(4), , pp.300-304
• Main Authors: Kim, Kyoung Ok, Roh, Ju-Won, Shin, Eun Jung, In, Junyong, Song, Tae Hun
• Format: Article
• Language: English
• Subjects: analgesia; Analgesics; drug and narcotic control; Laparoscopy; linear models; Medical personnel; medical waste; Narcotics; Nurses; Pain; patient-controlled; postoperative nausea and vomiting; Regulation; Review boards; Studies; Surgery; 간호학
• ISSN: 1976-1317; 2093-7482
• DOI: 10.1016/j.anr.2014.10.003

This study was undertaken to evaluate the factors affecting the unused remaining volume of intravenous patient-controlled analgesia (IV PCA) in patients who had undergone laparoscopic gynecologic surgery. Methods We retrospectively collected patient records from pre-existing PCA log sheets from 98 patients. Surgical factors and IV PCA-related data including remaining volume, administration duration, early discontinuation (yes or no), and adverse reactions were recorded. Chi-square test, one-way analysis of variance, and multiple linear regression were applied for data analysis. Results The average age of the 98 patients was 40.0 ± 8.24 years. The incidence of postoperative nausea and vomiting (PONV) and early discontinuation were not statistically significant among the different surgical groups (p = .540 andp = .338, respectively). Twenty-eight patients wanted discontinuation of IV PCA and the remaining volume was 33.6 ± 7.8 mL (range 20-55 mL). The significant determinants of remaining volume were whether IV PCA was discontinued due to PONV and duration of surgery (p < .001). The surgical duration was inversely correlated with the remaining volume. Conclusion Early discontinuation of IV PCA due to PONV is a major contributing factor to wastage of medicine. Prevention and treatment of PONV is needed to encourage patients to maintain PCA use for pain control.