Abstract
OBJECTIVETo better understand the degree and time to resolution of pain in the postoperative period, we captured patient-reported pain intensity and interference prospectively in patients following ureteroscopy for nephrolithiasis. MATERIALS AND METHODSAdults undergoing ureteroscopy for renal/ureteral stones from 11/2018 to 1/2020 were eligible for inclusion. All received nonopioid postoperative pain control. Patients prospectively completed Patient-Reported Outcome Measurement Information System-Pain Intensity and Patient-Reported Outcome Measurement Information System-Pain Interference instruments preoperatively on postoperative day (POD) 0 and via email on POD 1, 7, and 14. Scores are reported as T-scores (normalized to US population, mean = 50) with changes of 5 (0.5 standard deviation) considered clinically significant. RESULTSA total of 126 patients completed enrollment at POD 0 (POD 1 = 74, POD 7 = 61, POD 14 = 47). Compared to US means, intensity and interference were significantly different at all time point comparisons (Wilcoxon rank test; all P <.001) except intensity at POD 7 (P = .09) and interference at POD 14 (P = .12). For both, there was a significant difference at each time comparison (repeated measures ANOVA; all P <.05). Increasing age was predictive of lower intensity (Confidence Interval (CI): -0.31 to -0.04; P = .012) and interference (CI: -0.36 to -0.06; P =.01) at POD 1. The presence of a postoperative stent was predictive of higher intensity (CI: 0.68-10.81; P = .03) and interference (CI: 0.61—12.96; P = .03) at POD 7. Increasing age remained a predictor of lower interference at POD 1 on multivariable analysis (CI: -0.46 to -0.01; P = .03). CONCLUSIONPain intensity and interference are elevated immediately, but intensity normalizes by POD 7, while interference remains elevated until POD 14. Age and indwelling ureteral stent influence both intensity and interference.
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