Abstract
Background: Pain is associated with subjective factors, making it difficult to assess. The PainVision™ system has been developed to quantitatively assess pain and compare postoperative pain intensity. We investigated the utility of PainVision in assessing postoperative pain in digestive surgery patients.
Methods: Pain scores were measured with the visual analogue scale (VAS), the PainVision™ system, and the short-form McGill Pain Questionnaire (SFMPQ) in patients undergoing open or laparoscopic hepatectomy, gastrectomy, and cholecystectomy.
Results: As measured by the PainVision™ system, postoperative pain intensity was lower in patients who underwent laparoscopic operations compared with open hepatectomy. Over 50% of patients who underwent open hepatectomy through a right subcostal incision had continuous dull, heavy, and tender postoperative pain per the SFMPQ. In open hepatectomy patients, pain intensity by the PainVision™ system was significantly lower on postoperative day (POD) 7 and 10 than POD 1; pain intensity was also influenced by other variables, including body mass index, length of the skin incision, and operative time. Preemptive use of nonsteroidal anti-inflammatory drugs significantly reduced postoperative pain in open hepatectomy patients.
Conclusions: PainVision effectively quantifies pain intensity after digestive surgery. Objective assessment of postoperative pain may lead to early mobility and improved quality of life.
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Authors’ Contributions
MK and HI contributed equally to this work. MK and HI conducted the data analysis and drafted the manuscript. MI, KM, and M. Kon conceived the study, participated in its design, and helped draft the manuscript. TS, HM, and JF participated in the study design and contributed to the data collection. KI participated in the study design and advised the analysis. YM contributed to study data collection. All authors contributed to the interpretation of the findings and read and approved the final manuscript.
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The authors declare that they have no competing interests.
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Kaibori, M. et al. (2018). Objective and Quantitative Assessment of Postoperative Pain in Digestive Surgery. In: Fukushima, R., Kaibori, M. (eds) Enhanced Recovery after Surgery. Springer, Singapore. https://doi.org/10.1007/978-981-10-6796-9_4
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DOI: https://doi.org/10.1007/978-981-10-6796-9_4
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