IMPORTANCE: Despite increased focus on reducing opioid prescribing for long-term pain, little is known regarding the incidence and risk factors for persistent opioid use after surgery. OBJECTIVE: To ...determine the incidence of new persistent opioid use after minor and major surgical procedures. DESIGN, SETTING, AND PARTICIPANTS: Using a nationwide insurance claims data set from 2013 to 2014, we identified US adults aged 18 to 64 years without opioid use in the year prior to surgery (ie, no opioid prescription fulfillments from 12 months to 1 month prior to the procedure). For patients filling a perioperative opioid prescription, we calculated the incidence of persistent opioid use for more than 90 days among opioid-naive patients after both minor surgical procedures (ie, varicose vein removal, laparoscopic cholecystectomy, laparoscopic appendectomy, hemorrhoidectomy, thyroidectomy, transurethral prostate surgery, parathyroidectomy, and carpal tunnel) and major surgical procedures (ie, ventral incisional hernia repair, colectomy, reflux surgery, bariatric surgery, and hysterectomy). We then assessed data for patient-level predictors of persistent opioid use. MAIN OUTCOMES AND MEASURES: The primary outcome was defined a priori prior to data extraction. The primary outcome was new persistent opioid use, which was defined as an opioid prescription fulfillment between 90 and 180 days after the surgical procedure. RESULTS: A total of 36 177 patients met the inclusion criteria, with 29 068 (80.3%) receiving minor surgical procedures and 7109 (19.7%) receiving major procedures. The cohort had a mean (SD) age of 44.6 (11.9) years and was predominately female (23 913 66.1%) and white (26 091 72.1%). The rates of new persistent opioid use were similar between the 2 groups, ranging from 5.9% to 6.5%. By comparison, the incidence in the nonoperative control cohort was only 0.4%. Risk factors independently associated with new persistent opioid use included preoperative tobacco use (adjusted odds ratio aOR, 1.35; 95% CI, 1.22-1.50), alcohol and substance abuse disorders (aOR, 1.36; 95% CI, 1.02-1.80), mood disorders (aOR, 1.25; 95% CI, 1.10-1.43), anxiety (aOR, 1.24; 95% CI, 1.09-1.42), and preoperative pain disorders (back pain: aOR, 1.21; 95% CI, 1.08-1.36; arthritis: aOR, 1.24; 95% CI, 1.12-1.37; and centralized pain: aOR, 1.28; 95% CI, 1.16-1.41). CONCLUSIONS AND RELEVANCE: New persistent opioid use after surgery is common and is not significantly different between minor and major surgical procedures but rather associated with behavioral and pain disorders. This suggests its use is not due to surgical pain but addressable patient-level predictors. New persistent opioid use represents a common but previously underappreciated surgical complication that warrants increased awareness.
The current study was designed to test the hypothesis that the increased duration of analgesia caused by adding dexmedetomidine to local anesthetic results from blockade of the ...hyperpolarization-activated cation (I(h)) current.
In this randomized, blinded, controlled study, the analgesic effects of peripheral nerve blocks using 0.5% ropivacaine alone or 0.5% ropivacaine plus dexmedetomidine (34 μM or 6 μg/kg) were assessed with or without the pretreatment of α(1)- and α(2)-adrenoceptor antagonists (prazosin and idazoxan, respectively) and antagonists and agonists of the I(h) current (ZD 7288 and forskolin, respectively). Sciatic nerve blocks were performed, and analgesia was measured by paw withdrawal latency to a thermal stimulus every 30 min for 300 min postblock.
The analgesic effect of dexmedetomidine added to ropivacaine was not reversed by either prazosin or idazoxan. There were no additive or attenuated effects from the pretreatment with ZD 7288 (I(h) current blocker) compared with dexmedetomidine added to ropivacaine. When forskolin was administered as a pretreatment to ropivacaine plus dexmedetomidine, there were statistically significant reductions in duration of analgesia at time points 90-180 min (P < 0.0001 for each individual comparison). The duration of blockade for the forskolin (768 μM) followed by ropivacaine plus dexmedetomidine group mirrored the pattern of the ropivacaine alone group, thereby implying a reversal effect.
Dexmedetomidine added to ropivacaine caused approximately a 75% increase in the duration of analgesia, which was reversed by pretreatment with an I(h) current enhancer. The analgesic effect of dexmedetomidine was not reversed by an α(2)-adrenoceptor antagonist.
Health systems are stewards of patient electronic health record (EHR) data with extraordinarily rich depth and breadth, reflecting thousands of diagnoses and exposures. Measures of genomic variation ...integrated with EHRs offer a potential strategy to accurately stratify patients for risk profiling and discover new relationships between diagnoses and genomes. The objective of this study was to evaluate whether polygenic risk scores (PRS) for common cancers are associated with multiple phenotypes in a phenome-wide association study (PheWAS) conducted in 28,260 unrelated, genotyped patients of recent European ancestry who consented to participate in the Michigan Genomics Initiative, a longitudinal biorepository effort within Michigan Medicine. PRS for 12 cancer traits were calculated using summary statistics from the NHGRI-EBI catalog. A total of 1,711 synthetic case-control studies was used for PheWAS analyses. There were 13,490 (47.7%) patients with at least one cancer diagnosis in this study sample. PRS exhibited strong association for several cancer traits they were designed for, including female breast cancer, prostate cancer, melanoma, basal cell carcinoma, squamous cell carcinoma, and thyroid cancer. Phenome-wide significant associations were observed between PRS and many non-cancer diagnoses. To differentiate PRS associations driven by the primary trait from associations arising through shared genetic risk profiles, the idea of “exclusion PRS PheWAS” was introduced. Further analysis of temporal order of the diagnoses improved our understanding of these secondary associations. This comprehensive PheWAS used PRS instead of a single variant.
Despite efforts to reduce nonmedical opioid misuse, little is known about the development of persistent opioid use after surgery among adolescents and young adults. We hypothesized that there is an ...increased incidence of prolonged opioid refills among adolescents and young adults who received prescription opioids after surgery compared with nonsurgical patients.
We performed a retrospective cohort study by using commercial claims from the Truven Health Marketscan research databases from January 1, 2010, to December 31, 2014. We included opioid-naïve patients ages 13 to 21 years who underwent 1 of 13 operations. A random sample of 3% of nonsurgical patients who matched eligibility criteria was included as a comparison. Our primary outcome was persistent opioid use, which was defined as ≥1 opioid prescription refill between 90 and 180 days after the surgical procedure.
Among eligible patients, 60.5% filled a postoperative opioid prescription (88 637 patients). Persistent opioid use was found in 4.8% of patients (2.7%-15.2% across procedures) compared with 0.1% of those in the nonsurgical group. Cholecystectomy (adjusted odds ratio 1.13; 95% confidence interval, 1.00-1.26) and colectomy (adjusted odds ratio 2.33; 95% confidence interval, 1.01-5.34) were associated with the highest risk of persistent opioid use. Independent risk factors included older age, female sex, previous substance use disorder, chronic pain, and preoperative opioid fill.
Persistent opioid use after surgery is a concern among adolescents and young adults and may represent an important pathway to prescription opioid misuse. Identifying safe, evidence-based practices for pain management is a top priority, particularly among at-risk patients.
Surgeons universally overprescribe opioids even in surgeries that are minimally invasive. Despite some drops in opioid prescribing nationally, surgeons and dentists have not changed their prescribing ...habits. Opioid guidelines are inherently flawed by the anchoring heuristic and efforts should center on decreasing exposures to opioids through a physician-lead response. No-opioid minimally invasive surgery should be the goal rather than the exception.
IMPORTANCE: Safe opioid prescribing practices are critical to mitigate the risk of prescription opioid overdose in adolescents and young adults. However, studies that examine opioid prescribing ...patterns associated with prescription opioid overdose have mostly focused on older adults. The generalizability of these studies to adolescents and young adults is unclear. OBJECTIVE: To identify opioid prescribing patterns associated with prescription opioid overdose in adolescents and young adults. DESIGN, SETTING, AND PARTICIPANTS: This retrospective cohort study assessed privately insured patients aged 12 to 21 years with opioid prescription claims in the IBM MarketScan Commercial Claims and Encounters database between July 1, 2009, and October 1, 2017, and no cancer diagnosis. Data analysis was performed from January 1 to April 30, 2019. MAIN OUTCOMES AND MEASURES: The outcome was a treated opioid overdose as indicated by diagnosis codes. On the basis of days supplied, opioid prescription claims were converted to person-days (the unit of analysis) on which opioid exposure would occur if patients took medications as prescribed. Logistic regression with clustered SEs at the patient level was used to model the occurrence of overdose on a person-day as a function of daily opioid dosage category (<30, 30-59, 60-89, 90-119, or ≥120 morphine milligram equivalents), concurrent benzodiazepine use, and extended-release or long-acting opioid use. Regressions controlled for demographic characteristics, year, opioid use within 180 days, and comorbidities (mental health disorder, substance use disorder, and other chronic condition). RESULTS: A total of 2 752 612 patients (mean SD age at cohort entry, 17.2 2.5 years; 1 451 918 52.8% female) participated in the study. Patients had 4 686 355 opioid prescription claims, corresponding to 21 605 444 person-days. Overdose occurred on 255 person-days among 249 patients (0.01% of the sample). Each increase in daily opioid dosage category was associated with higher overdose risk (adjusted odds ratio AOR, 1.18; 95% CI, 1.05-1.31). Compared with no use, both concurrent benzodiazepine use (AOR, 1.83; 95% CI, 1.24-2.71) and extended-release or long-acting opioid use (AOR, 2.01; 95% CI, 1.16-3.46) were associated with increased overdose risk. CONCLUSIONS AND RELEVANCE: The findings suggest that when prescribing opioids to adolescents and young adults, practitioners could potentially mitigate overdose risk by using the lowest effective daily dosage, avoiding concurrent opioid and benzodiazepine prescribing, and relying on short-acting opioids. Findings are broadly consistent with prior opioid safety studies focused on older adults.
IMPORTANCE: Patterns of preoperative opioid use are not well characterized across different surgical services, and studies in this patient population have lacked important self-reported data of pain ...and affect. OBJECTIVES: To assess the prevalence of preoperative opioid use and the characteristics of these patients in a broadly representative surgical cohort. DESIGN, SETTING, AND PARTICIPANTS: Cross-sectional, observational study of patients undergoing surgery at a tertiary care academic medical center. Data were collected as a part of large prospective institutional research registries from March 1, 2010, through April 30, 2016. EXPOSURES: Preoperative patient and procedural characteristics, including prospectively assessed self-reported pain and functional measures. MAIN OUTCOMES AND MEASURES: Patient-reported opioid use before surgery. RESULTS: Of the total 34 186 patients recruited (54.2% women; mean SD age, 53.1 16.1 years), preoperative opioid use was reported in 7894 (23.1%). The most common opioids used were hydrocodone bitartrate (4685 59.4%), tramadol hydrochloride (1677 21.2%), and oxycodone hydrochloride (1442 18.3%). Age of 31 to 40 years (adjusted odds ratio aOR, 1.26; 95% CI, 1.10-1.45), tobacco use (former use aOR, 1.32 95% CI, 1.22-1.42; current use aOR, 1.62 95% CI, 1.48-1.78), illicit drug use (aOR, 1.74; 95% CI, 1.16-2.60), higher pain severity (aOR, 1.33; 95% CI, 1.31-1.35), depression (aOR, 1.22; 95% CI, 1.12-1.33), higher Fibromyalgia Survey scores (aOR, 1.06, 95% CI, 1.05-1.07), lower life satisfaction (aOR, 0.95, 95% CI, 0.93-0.96), and more medical comorbidities (American Society of Anesthesiology score aOR, 1.47 95% CI, 1.37-1.58; Charlson Comorbidity Index aOR, 1.29 95% CI, 1.18-1.41) were all independently associated with preoperative opioid use. Preoperative opioid use was most commonly reported by patients undergoing orthopedic (226 65.1%) and neurosurgical spinal (596 55.1%) procedures and least common among patients undergoing thoracic procedures (244 15.7%). After adjusting for patient characteristics, the patients undergoing lower extremity procedures were most likely to report preoperative opioid use (aOR, 3.61; 95% CI, 2.81-4.64), as well as those undergoing pelvic (excluding hip) (aOR, 3.09; 95% CI, 1.88-5.08), upper extremity (aOR, 3.07; 95% CI, 2.12-4.45), and spinal or spinal cord (aOR, 2.68; 95% CI, 2.15-3.32) procedures, with the group undergoing intrathoracic surgery as the reference group. CONCLUSIONS AND RELEVANCE: In this large study of preoperative opioid use that includes patient-reported outcome measures, more than 1 in 4 patients presenting for surgery reported opioid use. These data provide important insights into this complicated patient population that would appear to help guide future preoperative optimization and perioperative opioid-weaning interventions.
Few studies have assessed postoperative trends in opioid cessation and predictors of persistent opioid use after total knee arthroplasty (TKA) and total hip arthroplasty (THA). Preoperatively, 574 ...TKA and THA patients completed validated, self-report measures of pain, functioning, and mood and were longitudinally assessed for 6 months after surgery. Among patients who were opioid naive the day of surgery, 8.2% of TKA and 4.3% of THA patients were using opioids at 6 months. In comparison, 53.3% of TKA and 34.7% of THA patients who reported opioid use the day of surgery continued to use opioids at 6 months. Patients taking >60 mg oral morphine equivalents preoperatively had an 80% likelihood of persistent use postoperatively. Day of surgery predictors for 6-month opioid use by opioid-naive patients included greater overall body pain (P = 0.002), greater affected joint pain (knee/hip) (P = 0.034), and greater catastrophizing (P = 0.010). For both opioid-naive and opioid users on the day of surgery, decreases in overall body pain from baseline to 6 months were associated with decreased odds of being on opioids at 6 months (adjusted odds ratio aOR = 0.72, P = 0.050; aOR = 0.62, P = 0.001); however, change in affected joint pain (knee/hip) was not predictive of opioid use (aOR = 0.99, P = 0.939; aOR = 1.00, P = 0.963). In conclusion, many patients taking opioids before surgery continue to use opioids after arthroplasty and some opioid-naive patients remained on opioids; however, persistent opioid use was not associated with change in joint pain. Given the growing concerns about chronic opioid use, the reasons for persistent opioid use and perioperative prescribing of opioids deserve further study.
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