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Tweetable abstract Cannabis use may significantly affect anesthetic, perioperative and acute pain management care; but research needs to be standardized, expanded and more inclusive.

The REGAIN (Regional versus General Anesthesia for Promoting Independence after Hip Fracture) trial found similar ambulation and survival at 60 days with spinal versus general anesthesia for hip fracture surgery. Trial outcomes evaluating pain, prescription analgesic use, and patient satisfaction have not yet been reported.To compare pain, analgesic use, and satisfaction after hip fracture surgery with spinal versus general anesthesia.Preplanned secondary analysis of a pragmatic randomized trial. (ClinicalTrials.gov: NCT02507505).46 U.S. and Canadian hospitals.Patients aged 50 years or older undergoing hip fracture surgery.Spinal or general anesthesia.Pain on postoperative days 1 through 3; 60-, 180-, and 365-day pain and prescription analgesic use; and satisfaction with care.A total of 1600 patients were enrolled. The average age was 78 years, and 77% were women. A total of 73.5% (1050 of 1428) of patients reported severe pain during the first 24 hours after surgery. Worst pain over the first 24 hours after surgery was greater with spinal anesthesia (rated from 0 [no pain] to 10 [worst pain imaginable]; mean difference, 0.40 [95% CI, 0.12 to 0.68]). Pain did not differ across groups at other time points. Prescription analgesic use at 60 days occurred in 25% (141 of 563) and 18.8% (108 of 574) of patients assigned to spinal and general anesthesia, respectively (relative risk, 1.33 [CI, 1.06 to 1.65]). Satisfaction was similar across groups.Missing outcome data and multiple outcomes assessed.Severe pain is common after hip fracture. Spinal anesthesia was associated with more pain in the first 24 hours after surgery and more prescription analgesic use at 60 days compared with general anesthesia.Patient-Centered Outcomes Research Institute

Objective The aim of this study was to examine the association of preexisting opioid use disorder and postoperative outcomes in patients undergoing total hip or knee arthroplasty (THA and TKA, respectively) in the overall population and in the Medicare-only population. Methods This retrospective cohort study examined data from the State Inpatient Databases of the Healthcare Cost and Utilization Project for the years 2007–2014 from California, Florida, New York, Maryland, and Kentucky. We compared patients with and without opioid use disorders on unadjusted rates and calculated adjusted odds ratios (aORs) of in-hospital mortality, postoperative complications, length of stay, and 30-day and 90-day readmission status; analyses were repeated in a subgroup of Medicare insurance patients only. Subjects After applying our exclusion criteria, our study included 1,422,210 adult patients undergoing lower extremity arthroplasties, including 818,931 Medicare insurance patients. In our study, 0.4% of THA patients and 0.3% of TKA patients had present-on-admission opioid use disorder. Results Opioid use disorder patients were at higher risk for in-hospital mortality (aOR = 3.10), 30- and 90-day readmissions (aORs = 1.81, 1.81), and pulmonary and infectious complications (aORs = 1.25, 1.96). Conclusions Present-on-admission opioid use disorder was a risk factor for worse postoperative outcomes and increased health care utilization in the lower extremity arthroplasty population. Opioid use disorder is a potentially modifiable risk factor for mortality, postoperative complications, and health care utilization, especially in the at-risk Medicare population.

Summary Engaging patients—defined broadly as individuals with lived experience of a given condition, family members, caregivers, and the organisations that represent them—as partners in research is a priority for policymakers, funders, and the public. Nonetheless, formal efforts to engage patients are absent from most studies, and models to support meaningful patient engagement in clinical anaesthesia research have not been previously described. Here, we review our experience in developing and implementing a multifaceted patient engagement strategy within the Regional Versus General Anesthesia for Promoting Independence After Hip Fracture (REGAIN) surgery trial, an ongoing randomised trial comparing spinal vs general anaesthesia for hip fracture surgery in 1600 older adults across 45 hospitals in the USA and Canada. This strategy engaged patients and their representatives at both the level of overall trial oversight and at the level of individual recruiting sites. Activities spanned a continuum ranging from events designed to elicit patients' input on key decisions to longitudinal collaborations that empowered patients to actively participate in decision-making related to trial design and management. Engagement activities were highly acceptable to participants and led to concrete changes in the design and conduct of the REGAIN trial. The REGAIN experience offers a model for future efforts to engage patients as partners in clinical anaesthesia research, and highlights potential opportunities for investigators to increase the relevance of anaesthesia studies by incorporating patient voices and perspectives into the research process.

Objective To determine the effect of preoperative opioid use disorder (OUD) on postoperative outcomes in patients undergoing coronary artery bypass grafting (CABG) and heart valve surgery. Design Retrospective, observational study using data from the State Inpatient Database and the Healthcare Cost and Utilization Project. Setting Inpatient data from Florida, California, New York, Maryland, and Kentucky between 2007 and 2014. Participants A total of 377,771 CABG patients and 194,469 valve surgery patients age ≥18 years. Interventions None. Measurements and Main Results The prevalence of OUD was 2,136 (0.57%) in the CABG group and 2,020 (1.04%) in the valve surgery group. There was no significant difference in mortality between the OUD and non-OUD groups in both surgical cohorts (both p > 0.05). On adjusted analyses, preoperative OUD was significantly associated with increased adjusted odds ratios (aORs) of 30-day hospital readmission (CABG aOR 1.47 [95% confidence interval {CI} 1.30-1.66]; valve surgery aOR 1.41 [95% CI 1.27-1.56]) and 90-day hospital readmission (CABG aOR 1.47 [95% CI 1.31-1.64]; valve surgery aOR 1.33 [95% CI 1.23-1.43]). Preoperative OUD was significantly associated with increased adjusted risk ratios (aRRs) of hospital length of stay (CABG aRR 1.13 [95% CI 1.10-1.16]; valve surgery aRR 1.63 [95% CI 1.54-1.72]) and total hospitalization charges (CABG aRR 1.05 [95% CI 1.03-1.07]; valve surgery aRR 1.28 [95% CI 1.24-1.32]). Conclusion Preoperative OUD is significantly associated with poorer outcomes after cardiac surgery, including increased 30- and 90-day readmissions, hospital length of stay, and total hospitalization charges. Opioid use should be considered a modifiable risk factor in cardiac surgery, and interventions should be attempted preoperatively.

Chronic inflammatory demyelinating polyneuropathy (CIDP) is a rare autoimmune disease that targets the peripheral nervous system. The literature on the use of regional anesthesia in CIDP is limited. We report a patient with CIDP who received a combined spinal-epidural (CSE) and saphenous and popliteal peripheral nerve blocks (PNBs) for ankle surgery. The CSE and PNBs resolved without incident. On approximately the fourth postoperative day, the patient reported a worsening of baseline CIDP symptoms in all extremities. Given the diffuse presentation, the CIDP exacerbation was attributed to the perioperative stress response. The exacerbation improved by 4 months postoperatively.

Objectives Opioid use disorder (OUD) has previously been shown to negatively impact postoperative outcomes. As the number of spine surgeries continues to rise annually, more patients with preexisting OUD will be seen in operating rooms. Our retrospective cohort study aims to expand on the independent association between preoperative OUD and outcomes following lumbar-spine surgery. Patients and methods Using 2007–2014 data from the State Inpatient Databases (SID) for the states of California (2007–2011), Florida, New York, Maryland, and Kentucky, we identified patients ≥18 years of age undergoing lumbar-spine surgery. Our primary variable of interest was present-on-admission OUD. Outcomes of interest included a range of postoperative complications divided into those specific to spinal surgery and general surgical complications, length of stay (LOS), 30- and 90-day readmission rates, and total hospital charges. Results Of the 267,976 patients undergoing lumbar-spine surgery, 1902 patients were identified as having OUD. After adjusting for patient- and hospital-level confounders, we found that patients with OUD were more likely to experience complications related specifically to spine surgery (aOR = 1.51, 95%CI = 1.33–1.71) as well as general postoperative complications (aOR = 1.63, 95%CI = 1.36–1.96) compared to those without OUD. OUD was additionally associated with longer LOS (aIRR = 1.29, CI = 1.24–1.34) and higher total charges (aIRR = 1.14, CI = 1.11–1.18). Whereas no statistically significant difference was detected for 30-day-readmission rates, patients with OUD experienced higher rates of readmission within 90 days of discharge (aOR = 1.20, CI = 1.08–1.35). Conclusions Our study strengthens the evidence that patients with OUD fare poorly after lumbar-spine surgery. More research is needed to determine whether reducing opioid use before surgery can mitigate the postoperative risks associated with OUD.

Posterior sternoclavicular joint (SCJ) dislocation is a rare cause of shoulder injury that can present with life-threatening mediastinal complications. This injury most commonly occurs in adolescents and young adults, and there is a lack of anesthesia literature addressing its anesthetic implications. We present 2 cases of posterior SCJ dislocations and discuss the anesthetic management and the potential for mediastinal injuries.

Introduction and objectives: Opioid use disorder has become increasingly prevalent in recent years. Previous studies have shown that patients with opioid use disorder undergoing orthopedic, elective abdominopelvic, and cardiac procedures have poorer postoperative outcomes. The aim of this study was to examine the effect of pre-existing opioid use disorder on postoperative outcomes including in-hospital mortality, hospital length of stay (LOS), hospital readmission, and postoperative complications in patients undergoing appendectomy or cholecystectomy. Methods: The authors used administrative data from the State Inpatient Databases of the Healthcare Cost and Utilization Project for the years 2007-2014 from California, Florida, Kentucky, Maryland, and New York. The authors compared unadjusted rates of in-hospital mortality, postoperative complications, LOS, and 30-day and 90-day readmission status. The authors calculated the adjusted odds ratio (OR) for their outcomes using logistic regression models. Results: In all, 488,981 appendectomy patients and 790,491 cholecystectomy patients aged ≥ 18 years were included in the analysis. Appendectomy (OR 2.26) but not cholecystectomy patients with opioid use disorder had statistically significant adjusted odds of in-hospital death. Patients with opioid use disorder (overall reported, and by each procedure separately) had higher adjusted odds of postoperative complication (OR 1.46), 30-day readmission (OR 1.80), 90-day readmission (OR 1.98), and longer LOS (OR 1.37). Conclusions: The authors found higher unadjusted rates and adjusted ORs of in-patient mortality, hospital readmission, and postoperative complications in patients with opioid use disorder undergoing common abdominal surgeries. The authors’ study shows that opioid use disorder is a risk factor for poorer postoperative outcomes in this surgical patient population.

BackgroundTotal knee arthroplasty (TKA) is among the most common surgical procedures performed in the USA and comprises an outsized proportion of Medicare expenditures. Previous work-associated higher safety-net burden hospitals with increased morbidity and in-hospital mortality following total hip arthroplasty. Here, we examine the association of safety-net burden on postoperative outcomes after TKA.MethodsWe retrospectively analyzed 1 141 587 patients aged ≥18 years undergoing isolated elective TKA using data from the State Inpatient Databases for Florida, Kentucky, Maryland, New York and Washington from 2007 through 2018. Hospitals were grouped into tertiles by safety-net burden status, defined by the proportion of inpatient cases billed to Medicaid or unpaid (low: 0%–16.83%, medium: 16.84%–30.45%, high: ≥30.45%). Using generalized estimating equation models, we assessed the association of hospital safety-net burden status on in-hospital mortality, patient complications and length of stay (LOS). We also analyzed outcomes by anesthesia type in New York State (NYS), the only state with this data.ResultsMost TKA procedures were performed at medium safety-net burden hospitals (n=6 16 915, 54%), while high-burden hospitals performed the fewest (n=2 04 784, 17.9%). Overall in-patient mortality was low (0.056%), however, patients undergoing TKA at medium-burden hospitals were 40% more likely to die when compared with patients at low-burden hospitals (low: 0.043% vs medium: 0.061%, adjusted OR (aOR): 1.40, 95% CI 1.09 to 1.79, p=0.008). Patients who underwent TKA at medium or high safety-net burden hospitals were more likely to experience intraoperative complications (low: 0.2% vs medium: 0.3%, aOR: 1.94, 95% CI 1.34 to 2.83, pConclusionsPatients undergoing TKA at higher safety-net burden hospitals are associated with higher odds of in-patient mortality than those at low safety-net burden hospitals. The source of this mortality differential is unknown but could be related to the increased risk of intraoperative complications at higher burden centers.

Effective and efficient acute pain management strategies have the potential to improve medical outcomes, enhance patient satisfaction, and reduce costs. Pain management records are having an increasing influence on patient choice of health care providers and will affect future financial reimbursement. Dedicated acute pain and regional anesthesia services are invaluable in improving acute pain management. In addition, nonpharmacologic and alternative therapies, as well as information technology, should be viewed as complimentary to traditional pharmacologic treatments commonly used in the management of acute pain. The use of innovative technologies to improve acute pain management may be worthwhile for health care institutions.