Khadija Nasser1, Kevin Verhoeff2,3, Valentin Mocanu4, Janice Y Kung5, Kieran Purich4, Noah J Switzer4, Daniel W Birch6, Shahzeer Karmali6. 1. Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada. 2. Department of Surgery, University of Alberta, Edmonton, AB, Canada. verhoeff@ualberta.ca. 3. Department of Surgery, University of Alberta, Dvorkin Lounge Mailroom, 2G2 Walter C. Mackenzie Health Sciences Centre, 8440, 112 St NW, Edmonton, AB, T6G 2B7, Canada. verhoeff@ualberta.ca. 4. Department of Surgery, University of Alberta, Edmonton, AB, Canada. 5. John W. Scott Health Sciences Library, University of Alberta, Edmonton, AB, Canada. 6. Centre for Advancement of Surgical Education and Simulation (CASES), Royal Alexandra Hospital, Edmonton, AB, Canada.
Abstract
INTRODUCTION: Increasing evidence suggests surgical patients are at risk for developing new, persistent opioid use (NPOU) following surgery. This risk may be heightened for patients undergoing bariatric surgery. Few studies have evaluated this important long-term outcome and little is known about the rate of NPOU, or factors associated with NPOU for bariatric surgery patients. METHODS AND PROCEDURE: We conducted a systematic review of MEDLINE, Embase, Scopus, Web of Science, and Cochrane databases in August 2021. Studies were reviewed and data extracted independently by two reviewers following MOOSE guidelines. Studies evaluating bariatric surgery patients reporting NPOU, defined as new opioid use > 90 days after surgery, were included. Abstracts, non-English, animal, n < 5, and pediatric studies were excluded. Primary outcome was NPOU prevalence, and secondary outcomes were patient and surgical factors associated with NPOU. Factors associated with NPOU are reported from findings of individual studies; meta-analysis could not be completed due to heterogeneity of reporting. RESULTS: We retrieved a total of 2113 studies with 8 meeting inclusion criteria. In studies reporting NPOU rates (n = 4 studies), pooled prevalence was 6.0% (95% CI 4.0-7.0%). Patient characteristics reported by studies to be associated with NPOU included prior substance use (tobacco, alcohol, other prescription analgesics), preoperative mental health disorder (anxiety, mood disorders, eating disorders), and public health insurance. Surgical factors associated with NPOU included severe post-operative complications and in-hospital opioid use (peri- or post operatively). CONCLUSIONS: NPOU is an uncommon but important complication following bariatric surgery, with patient factors including prior substance abuse, mental health disorders, and use of public health insurance placing patients at increased risk, and surgical factors being complications and peri-operative opioid use. Studies evaluating techniques to reduce NPOU in these high-risk populations are needed.
INTRODUCTION: Increasing evidence suggests surgical patients are at risk for developing new, persistent opioid use (NPOU) following surgery. This risk may be heightened for patients undergoing bariatric surgery. Few studies have evaluated this important long-term outcome and little is known about the rate of NPOU, or factors associated with NPOU for bariatric surgery patients. METHODS AND PROCEDURE: We conducted a systematic review of MEDLINE, Embase, Scopus, Web of Science, and Cochrane databases in August 2021. Studies were reviewed and data extracted independently by two reviewers following MOOSE guidelines. Studies evaluating bariatric surgery patients reporting NPOU, defined as new opioid use > 90 days after surgery, were included. Abstracts, non-English, animal, n < 5, and pediatric studies were excluded. Primary outcome was NPOU prevalence, and secondary outcomes were patient and surgical factors associated with NPOU. Factors associated with NPOU are reported from findings of individual studies; meta-analysis could not be completed due to heterogeneity of reporting. RESULTS: We retrieved a total of 2113 studies with 8 meeting inclusion criteria. In studies reporting NPOU rates (n = 4 studies), pooled prevalence was 6.0% (95% CI 4.0-7.0%). Patient characteristics reported by studies to be associated with NPOU included prior substance use (tobacco, alcohol, other prescription analgesics), preoperative mental health disorder (anxiety, mood disorders, eating disorders), and public health insurance. Surgical factors associated with NPOU included severe post-operative complications and in-hospital opioid use (peri- or post operatively). CONCLUSIONS: NPOU is an uncommon but important complication following bariatric surgery, with patient factors including prior substance abuse, mental health disorders, and use of public health insurance placing patients at increased risk, and surgical factors being complications and peri-operative opioid use. Studies evaluating techniques to reduce NPOU in these high-risk populations are needed.
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