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Mauck MC, Zhao Y, Goetzinger AM, Tungate AS, Spencer AB, Lal A, Barton CE, Beaudoin F, McLean SA. Incidence of persistent opioid use following traumatic injury. Reg Anesth Pain Med 2024; 49:79-86. [PMID: 37364919 DOI: 10.1136/rapm-2022-103662] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Accepted: 05/11/2023] [Indexed: 06/28/2023]
Abstract
INTRODUCTION Major traumatic injuries are a known risk factor for persistent opioid use, but data describing the relationship between specific traumatic injuries and opioid use is lacking. METHODS We used insurance claims data from January 1, 2001 to December 31, 2020 to estimate the incidence of new persistent opioid use in three hospitalized trauma populations: individuals hospitalized after burn injury (3809, 1504 of whom required tissue grafting), individuals hospitalized after motor vehicle collision (MVC; 9041), and individuals hospitalized after orthopedic injury (47, 637). New persistent opioid use was defined as receipt of ≥1 opioid prescriptions 90-180 days following injury in an individual with no opioid prescriptions during the year prior to injury. RESULTS New persistent opioid use was observed in 12% (267/2305) of individuals hospitalized after burn injury with no grafting, and 12% (176/1504) of burn injury patients requiring tissue grafting. In addition, new persistent opioid use was observed in 16% (1454/9041) of individuals hospitalized after MVC, and 20% (9455/47, 637) of individuals hospitalized after orthopedic trauma. In comparison, rates of persistent opioid use in all trauma cohorts (19%, 11, 352/60, 487) were greater than the rates of persistent opioid use in both non-traumatic major surgery (13%) and non-traumatic minor surgery (9%). CONCLUSIONS These data demonstrate that new persistent opioid use frequently occurs in these common hospitalized trauma populations. Improved interventions to reduce persistent pain and opioid use in patients hospitalized after these and other traumas are needed.
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Affiliation(s)
- Matthew C Mauck
- Institute for Trauma Recovery, The University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA
- Anesthesiology, The University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA
| | - Ying Zhao
- Anesthesiology, The University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA
| | - Amy M Goetzinger
- Anesthesiology, The University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA
| | - Andrew S Tungate
- Institute for Trauma Recovery, The University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA
- Anesthesiology, The University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA
| | - Alex B Spencer
- Anesthesiology, The University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA
| | - Asim Lal
- Institute for Trauma Recovery, The University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA
- Anesthesiology, The University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA
| | - Chloe E Barton
- Institute for Trauma Recovery, The University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA
- Anesthesiology, The University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA
| | - Francesca Beaudoin
- Department of Emergency Medicine, Brown University Warren Alpert Medical School, Providence, Rhode Island, USA
| | - Samuel A McLean
- Institute for Trauma Recovery, The University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA
- Emergency Medicine, The University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA
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Branham EM, McLean SA, Deliwala I, Mauck MC, Zhao Y, McKibben LA, Lee A, Spencer AB, Zannas AS, Lechner M, Danza T, Velilla MA, Hendry PL, Pearson C, Peak DA, Jones J, Rathlev NK, Linnstaedt SD. CpG methylation levels in HPA axis genes predict chronic pain outcomes following trauma exposure. J Pain 2023:S1526-5900(23)00364-4. [PMID: 36906051 DOI: 10.1016/j.jpain.2023.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 02/21/2023] [Accepted: 03/01/2023] [Indexed: 03/12/2023]
Abstract
Chronic posttraumatic musculoskeletal pain (CPTP) is a common outcome of traumatic stress exposure. Biological factors that influence the development of CPTP are poorly understood, though current evidence indicates that the hypothalamic-pituitary-adrenal (HPA) axis plays a critical role in its development. Little is known about molecular mechanisms underlying this association, including epigenetic mechanisms. Here, we assessed whether peritraumatic DNA methylation levels at 248 CpG sites in HPA axis genes (FKBP5, NR3C1, CRH, CRHR1, CRHR2, CRHBP, POMC) predict CPTP and whether identified CPTP-associated methylation levels influence expression of those genes. Using participant samples and data collected from trauma survivors enrolled into longitudinal cohort studies (n=290), we used linear mixed modeling to assess the relationship between peritraumatic blood-based CpG methylation levels and CPTP. 66 (27%) of the 248 CpG sites assessed in these models statistically significantly predicted CPTP, with the three most significantly associated CpG sites originating from the POMC gene region (i.e. cg22900229 [β=0.124, p<0.001], cg16302441 [β=0.443, p<0.001], cg01926269 [β=0.130, p<0.001]). Among the genes analyzed, both POMC (z=2.36, p=0.018) and CRHBP (z=4.89, p<0.001) were enriched in CpG sites significantly associated with CPTP. Further, POMC expression was inversely correlated with methylation levels in a CPTP-dependent manner (six-month NRS<4: r=-0.59, p<0.001; six-month NRS≥4: r=-0.18, p=0.2312). Our results suggest that methylation of HPA axis genes including POMC and CRHBP predict risk for and may contribute to vulnerability to CPTP. Perspective Peritraumatic blood levels of CpG methylation sites in HPA axis genes, particularly CpG sites in the POMC gene, predict chronic posttraumatic musculoskeletal pain (CPTP) development. This data substantially advances our understanding of epigenetic predictors and potential mediators of CPTP, a highly common, morbid, and hard-to-treat form of chronic pain.
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Affiliation(s)
- Erica M Branham
- Institute for Trauma Recovery, University of North Carolina, Chapel Hill, North Carolina; Department of Anesthesiology, University of North Carolina, Chapel Hill, North Carolina; Curriculum in Genetics and Molecular Biology, University of North Carolina, Chapel Hill, North Carolina
| | - Samuel A McLean
- Institute for Trauma Recovery, University of North Carolina, Chapel Hill, North Carolina; Department of Anesthesiology, University of North Carolina, Chapel Hill, North Carolina; Department of Emergency Medicine, University of North Carolina, Chapel Hill, North Carolina
| | - Ishani Deliwala
- Institute for Trauma Recovery, University of North Carolina, Chapel Hill, North Carolina; Department of Anesthesiology, University of North Carolina, Chapel Hill, North Carolina
| | - Matthew C Mauck
- Institute for Trauma Recovery, University of North Carolina, Chapel Hill, North Carolina; Department of Anesthesiology, University of North Carolina, Chapel Hill, North Carolina
| | - Ying Zhao
- Institute for Trauma Recovery, University of North Carolina, Chapel Hill, North Carolina; Department of Anesthesiology, University of North Carolina, Chapel Hill, North Carolina
| | - Lauren A McKibben
- Institute for Trauma Recovery, University of North Carolina, Chapel Hill, North Carolina; Department of Anesthesiology, University of North Carolina, Chapel Hill, North Carolina
| | - Aaron Lee
- Institute for Trauma Recovery, University of North Carolina, Chapel Hill, North Carolina; Department of Anesthesiology, University of North Carolina, Chapel Hill, North Carolina
| | - Alex B Spencer
- Institute for Trauma Recovery, University of North Carolina, Chapel Hill, North Carolina; Department of Anesthesiology, University of North Carolina, Chapel Hill, North Carolina
| | - Anthony S Zannas
- Institute for Trauma Recovery, University of North Carolina, Chapel Hill, North Carolina; Department of Psychiatry, University of North Carolina, Chapel Hill, North Carolina; Department of Genetics, University of North Carolina, Chapel Hill, North Carolina; Carolina Stress Initiative, University of North Carolina, Chapel Hill, North Carolina
| | - Megan Lechner
- Forensic Nursing Program, Memorial Health System, Colorado Springs, Colorado
| | - Teresa Danza
- Forensic Nursing Program, Albuquerque SANE Collaborative, Albuquerque, New Mexico
| | | | - Phyllis L Hendry
- Department of Emergency Medicine, University of Florida College of Medicine, Jacksonville, Florida
| | - Claire Pearson
- Department of Emergency Medicine, Detroit Receiving, Detroit, Michigan
| | - David A Peak
- Department of Emergency Medicine, Massachusetts General Hospital, Boston, Massachusetts
| | - Jeffrey Jones
- Department of Emergency Medicine, Spectrum Health Butterworth Campus, Grand Rapids, Michigan
| | - Niels K Rathlev
- Department of Emergency Medicine, University of Massachusetts Chan Medical School Baystate, Springfield, Massachusetts
| | - Sarah D Linnstaedt
- Institute for Trauma Recovery, University of North Carolina, Chapel Hill, North Carolina; Department of Anesthesiology, University of North Carolina, Chapel Hill, North Carolina; Curriculum in Genetics and Molecular Biology, University of North Carolina, Chapel Hill, North Carolina.
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Abstract
At a machining center used to produce transmission parts, aerosol instrumentation was used to quantitatively study mist generation and to evaluate the performance of an air cleaner for controlling the mist. This machining center drilled and tapped holes at rotational speeds of 1000 to 3000 rpm. During most machining operations, the metal-working fluid (MWF) was flooded over the part. To facilitate metal chip removal during some operations, MWF was pumped through the orifices in some tools at a pressure of 800 psi. These machining operations were performed in a nearly complete enclosure that was exhausted to an air cleaner at a flow rate of 1.1 m3/sec (2400 ft3/m). Although the use of high-pressure MWF increased the mist concentration by about 200%, it did not affect the mist size distribution. The observed penetration through the air cleaner appeared to be mostly consistent with the manufacturer's specifications on the air cleaner's filters. During the testing, MWF was observed to accumulate in the bottom of the filter housing and may have been reentrained due to air motion or mechanical vibration.
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Affiliation(s)
- W A Heitbrink
- U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Division of Physical Sciences and Engineering, Cincinnati, OH 45226-1998, USA
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Abstract
Methylene chloride, a potential occupational carcinogen, is one of the principal solvents used for furniture stripping. Methylene chloride exposures among workers in furniture stripping operations have been found to be high. This article describes a furniture stripping operation at a sheltered workshop before and after the ventilation system was modified. Previous to ventilation system modifications, workers who were stripping furniture had exposures to methylene chloride ranging from 600 to 1150 ppm. These high exposures and an evaluation of the ventilation system prompted the design and installation of a modified ventilation system. Primary modifications included installing a local ventilation hood, decreasing the velocity of makeup air entering the stripping area, removing a contaminated charcoal adsorption bed and improving work practices. The modified system was arranged into three configurations that included a slot hood, a downdraft hood, and a combination slot and downdraft hood. The three configurations were evaluated over a three-day period, and it was found that they controlled the worker's personal exposures to methylene chloride while stripping to 28 ppm for the combination configuration, 30 ppm for the downdraft configuration, and 34 ppm for the slot configuration. Although the exposures are above the proposed Occupational Safety and Health Administration permissible exposure level of 25 ppm, these results show a substantial improvement over the existing ventilation system. The ventilation system described is applicable to other furniture stripping facilities if rinse area local ventilation is improved.
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Affiliation(s)
- C F Estill
- U.S. Department of Health and Human Services, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Cincinnati, Ohio 45226, USA
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Abstract
Researchers from the National Institute for Occupational Safety and Health (NIOSH) applied Hazard and Operability (HAZOP) analysis to examine hazards during the use of anhydrous ammonia by farmers. This analysis evaluated the storage, transfer, and application of anhydrous ammonia, identifying credible hazard scenarios, practical solutions, and research needs. Ninety-five findings were developed that are of use to farmers, distributors of ammonia and application equipment, and manufacturers of application equipment. The findings generally involve training, equipment design changes, preventive maintenance, and material compatibilities. The HAZOP team found that additional safety features need to be developed or implemented. The study also pointed out where correct operator procedure and preventive maintenance can prevent inadvertent releases. Other inadvertent releases are caused by incompatible materials, or by using equipment in ways other than intended. Several examples of the findings are given to emphasize the HAZOP technique and the high-risk scenarios. Strategies for dissemination to the agricultural community are presented.
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Affiliation(s)
- A B Spencer
- Public Health Service, Centers for Disease Control and Prevention, Cincinnati, Ohio 45226
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