Characterization of self-anticipated pain score prior to elective surgery - a prospective observational study

BMC Anesthesiology

Wei-Shu Chang¹  Moa-Chu Chen¹  Yun-Chi Chang¹  Yi-Ting Hsieh¹  Shu-Ching Chang¹  Yu-Chuan Tsai¹  Chen-Fuh Lam²  Tzu-Shan Chen³ 

[1] Department of Anesthesiology, E-Da Hospital and E-Da Cancer Hospital, Kaohsiung, Taiwan;Department of Anesthesiology, E-Da Hospital and E-Da Cancer Hospital, Kaohsiung, Taiwan;School of Medicine, I-Shou University College of Medicine, Kaohsiung, Taiwan;Department of Medical Research, E-Da Hospital and E-Da Cancer Hospital, Kaohsiung, Taiwan;Department of Medical Imaging and Radiological Sciences, College of Medicine, I-Shou University, Kaohsiung, Taiwan;

关键词: Numeric rating scale;    Pain expectation;    Pre-anesthesia assessment, post-anesthesia care unit;    Surgery-related pain;   

DOI  :  10.1186/s12871-021-01303-y

来源: Springer

【 摘 要 】

BackgroundCurrent principles of postoperative pain management are primarily based on the types and extent of surgical intervention. This clinical study measured patient’s self-anticipated pain score before surgery, and compared the anticipated scores with the actual pain levels and analgesic requirements after surgery.MethodsThis prospective observational study recruited consecutive patients who received elective surgery in the E-Da Hospital, Taiwan from June to August 2018. Patients were asked to subjectively rate their highest anticipated pain level (numeric rating scale, NRS 0–10) for the scheduled surgical interventions during their preoperative anesthesia assessment. After the operation, the actual pain intensity (NRS 0–10) experienced by the patient in the post-anesthesia care unit and the total dose of opioids administered during the perioperative period were recorded. Pain scores ≥4 on NRS were regarded as being unacceptable levels for anticipated or postoperative pain that required more aggressive intervention.ResultsA total of 996 patients were included in the study. Most of the patients (86%) received general anesthesia and 73.9% of them had a history of previous operation. Female anticipated significantly higher overall pain intensities than the male patients (adjusted odd ratio 1.523, 95% confidence interval 1.126–2.061; P = 0.006). Patients who took regular benzodiazepine at bedtime (P = 0.037) and those scheduled to receive more invasive surgical procedures were most likely to anticipate for higher pain intensity at the preoperative period (P < 0.05). Higher anticipated pain scores (preoperative NRS ≥ 4) were associated with higher actual postoperative pain levels (P = 0.007) in the PACU and higher total equivalent opioid use (P < 0.001) for acute pain management during the perioperative period.ConclusionThis observational study found that patients who are female, use regular benzodiazepines at bedtime and scheduled for more invasive surgeries anticipate significantly higher surgery-related pain. Therefore, appropriate preoperative counseling for analgesic control and the management of exaggerated pain expectation in these patients is necessary to improve the quality of anesthesia delivered and patient’s satisfaction.

【 授权许可】

CC BY