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Background: The effects of non-infectious urinary catheter-related complications such as measurements of indwelling urinary catheter overuse, catheter-related trauma, and urinary retention are not well understood., Methods: This was a retrospective cohort study of 200 patients undergoing general surgery operations. Variables to measure urinary catheter use, trauma, and retention were developed, then surgical cases were abstracted. Inter- and intra-rater reliability were calculated for measure validation., Results: 129 of 200 (65%) had an indwelling urinary catheter placed at the time of surgery. 32 patients (16%) had urinary retention, and variation was observed in the treatment of urinary retention. 12 patients (6%) had urinary trauma. Rater reliability was high (>90% agreement for all) for the dichotomous outcomes of urinary catheter use, urinary catheter-related trauma, and urinary retention., Conclusions: This study suggests a persistent high rate of catheter use, significant rates of urinary retention and trauma, and variation in the management of retention., Competing Interests: Declaration of competing interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Co-Author Jennifer Meddings reports a relationship with Agency for Healthcare Research and Quality that includes: funding grants. Jennifer Meddings reports a relationship with Centers for Disease Control and Prevention that includes: funding grants. Jennifer Meddings reports a relationship with Ralph E. Wilson Fundation that includes: funding grants. Jennifer Meddings reports a relationship with VHA Health Services Research & Development that includes: funding grants. Jennifer Meddings has patent US Patent #10279145 and Japanese Patent #6933385 issued to Jennifer Meddings. Jennifer Meddings has received royalties for “Preventing Hospital Infection” book, published by Oxford., (Copyright © 2023 Elsevier Inc. All rights reserved.)

Background: Postoperative pain management is particularly challenging in patients using opioids preoperatively, but previous studies have not stratified patients not using opioids at the time of surgery according to history of opioid use. This study was designed to test the hypothesis that history of opioid use among patients not reporting opioid use at the time of surgery was independently associated with new persistent opioid use after surgery., Methods: Using prospective perioperative data from the Analgesic Outcomes Study, we assessed outcomes of patients 18 years of age or older who underwent elective surgery between December 2015 and January 2019 and were not using opioids at the time of surgery. Patient self-reported outcome measures were collected on the day of surgery and at 2 weeks, 1 month, and 3 months postoperatively. The primary outcome was new persistent opioid use, defined as continued opioid use 3 months after surgery. The primary explanatory variable was history of opioid use, which was categorized as no history of opioid use, history of non-continuous opioid use, or history of continuous opioid use (defined as daily or almost every day for 3 months or longer). Other covariates included demographics, validated measures (pain, mood), surgery type and approach, comorbidities, and use of tobacco, alcohol, cannabis, and benzodiazepines. Backward stepwise logistic regression models were used to determine patient factors associated with new persistent opioid use and refill after surgery., Results: A total of 1,249 patients not taking opioids preoperatively were included in the study cohort for new persistent opioid use. A total of 54 (4.3%) patients had continued use 3 months after surgery. New persistent opioid use after surgery was independently associated with non-continuous opioid use history (adjusted odds ratio 2.9, [95% confidence interval, 1.21 to 6.94]), continuous opioid use history (adjusted odds ratio 5.0, [95% confidence interval, 1.48 to 16.76]), and moderate to high alcohol use (adjusted odds ratio 2.5, [95% confidence interval, 1.24 to 4.93]). Similarly, opioid prescription refill at 1 month after surgery was independently associated with history of non-continuous opioid use (adjusted odds ratio 1.6, [95% confidence interval, 1.12 to 2.24]), history of continuous opioid use (adjusted odds ratio 2.2, [95% confidence interval, 1.15 to 4.06]), and moderate to high alcohol use (adjusted odds ratio 1.7, [95% confidence interval, 1.18 to 2.48])., Conclusion: Among patients not using opioids preoperatively, a history of opioid use was independently associated with new persistent opioid use after surgery, especially those with a history of continuous opioid use., (Copyright © 2021. Published by Elsevier Inc.)