ERAS Protocol Options for Perioperative Pain Management of Substance Use Disorder in the Ambulatory Surgical Setting.

Even prior to the COVID-19 pandemic, rates of ambulatory surgeries and ambulatory patients presenting with substance use disorder were increasing, and the end of lockdown has further catalyzed the increasing rates of ambulatory patients presenting for surgery with substance use disorder (SUD). Certain subspecialty groups of ambulatory procedures have already established protocols to optimize early recovery after surgery (ERAS), and these groups have subsequently enjoyed improved efficiency and reduced adverse outcomes as a result. In this present investigation, we review the literature as it relates to substance use disorder patients, with a particular focus on pharmacokinetic and pharmacodynamic profiles, and their resulting impact on the acute- or chronic user ambulatory patient. The systematic literature review findings are organized and summarized. We conclude by identifying areas of opportunity for further study, specifically with the aim of developing a dedicated ERAS protocol for substance use disorder patients in the ambulatory surgery setting. - Healthcare in the USA has seen an increase in rates of both substance use disorder patients and separately in ambulatory surgery cases. - Specific perioperative protocols to optimize outcomes for patients who suffer from substance use disorder have been described in recent years. - Agents of interest like opioids, cannabis, and amphetamines are the top three most abused substances in North America. - A protocol and recommend further work should be done to integrate with concrete clinical data, in which strategies should be employed to confer benefits to patient outcomes and hospital quality metrics like those enjoyed by ERAS protocol in other settings.

Considerations on the Obstacles That Lead to Slow Recruitment in a Pain Management Clinical Trial: Experiences from the Belgian PELICAN (PrEgabalin Lidocaine Capsaicin Neuropathic Pain) Pragmatic Study.

Background: A qualitative evaluation study of the prematurely terminated PrEgabalin Lidocaine Capsaicin Neuropathic Pain (PELICAN) study was performed. The PELICAN study aimed to examine pain management for localized neuropathic pain (LNP), as epidemiological figures have shown a high percentage of LNP patients in Belgium. The study compared systemic and topical medications according to pain relief, adverse effects, and several measures of quality of life. Objective: Achieving better study patient recruitment through qualitative research. To investigate and determine the causes of the observed recruitment problems in the PELICAN study, pain centers involved in the study as well as nonrecruiting pain centers were included. Furthermore, it aimed to highlight the positive and negative lessons learned from the conducted study and the number of obstacles the team had to overcome. Methods: A qualitative study, using a mixed methods approach, was performed. Multiple pain centers in Belgium completed an online survey, after which a structured interview was conducted to elaborate the responses in more detail. The broad topics of these meetings were feedback about the study, reviewing survey answers, and actions undertaken to enhance recruitment. Results: Different factors contributed to the low recruitment rate in the PELICAN study, such as limited and late referral from the general practitioners to the Belgian pain centers, insufficient internal referrals from nonpain specialists, lack of specific expertise on LNP in some centers, scarcity of staff, limited reimbursement to administer complex analgesic schemes, overestimation of the patient population, and the reluctance of patients to participate in pain research. Additionally, shortcomings in the implemented study design and the need for more logistical investments were identified. Conclusion: The findings of the qualitative study demonstrate the need for further, more varied LNP research in Belgium, not limited to pharmacological studies. It also sheds important light on the recruitment obstacles that may be faced during these studies. Future studies could support this research by offering better proposals for feasibility and recruitment, for instance, by designing and conducting a compelling pilot study or applying social media during the recruitment phase. Clinical Trials. This trial is registered with NCT03348735. EUDRACT number 2018-003617-17.

Society of Pain and Palliative Care Pharmacists White Paper on the Role of Opioid Stewardship Pharmacists.

Opioid stewardship is one essential function of pain and palliative care pharmacists and a critical need in the United States. In recent years, this country has been plagued by two public health emergencies: an opioid crisis and the COVID-19 pandemic, which has exacerbated the opioid epidemic through its economic and psychosocial toll. To develop an opioid stewardship program, a systematic approach is needed. This will be detailed in part here by the Opioid Stewardship Taskforce of the Society of Pain and Palliative Care Pharmacists (SPPCP), focusing on the role of the pharmacist. Many pain and palliative care pharmacists have made significant contributions to the development and daily operation of such programs while also completing other competing clinical tasks, including direct patient care. To ensure dedicated time and attention to critical opioid stewardship efforts, SPPCP recommends and endorses opioid stewardship models employing a full time, opioid stewardship pharmacist in both the inpatient and outpatient setting. Early research suggests that opioid stewardship pharmacists are pivotal to improving opioid metrics and pain care outcomes. However, further research and development in this area of practice is needed and encouraged.

Pediatric Project ECHO® for Pain: implementation and mixed methods evaluation of a virtual medical education program to support interprofessional pain management in children and youth.

BACKGROUND: Pediatric pain is a complex health challenge requiring a multi-modal management approach. It is critical that healthcare providers (HCPs) have access to ongoing, flexible education and mentorship specific to pediatric pain. However, there are significant gaps in available pain education and a need for more opportunities to support interprofessional training. Project Extension for Community Healthcare Outcomes (Project ECHO®) is a model for delivering online HCP education and cultivating a virtual community of practice. Within the pediatric pain setting, ECHO® has potential to improve local access to specialized pain knowledge, particularly among the physicians, nurses, and allied health providers who primarily manage these cases in community and hospital settings across rural and urban environments. The purpose of this study was three-fold. First, to evaluate the feasibility (participation levels, acceptability) of implementing Project ECHO® in the context of pediatric pain. Second, to measure preliminary program impacts on HCP knowledge, self-efficacy, and clinical practice. Third, to characterize HCP program engagement levels before and after onset of the COVID-19 pandemic. METHODS: A needs assessment was conducted to identify interprofessional education gaps and inform the program curriculum. The no-cost Pediatric ECHO® for Pain program offered TeleECHO sessions (didactic and case-based learning) as well as foundational education. Surveys were distributed at baseline and 6 months to assess outcomes using 7-point Likert scales. Participant engagement was assessed for periods prior to and during the COVID-19 pandemic. Descriptive and inferential statistical analyses were conducted. RESULTS: Eighty-five TeleECHO sessions were hosted, with a mean attendance of 34.1 ± 23.4 HCPs. Acceptability scores at 6 months (n = 33) ranged from 5.0 ± 1.4 to 6.5 ± 0.5. Participants reported statistically significant (p < 0.05) improvements in knowledge (7 out of 7 topics) and self-efficacy (8 out of 9 skills). Most participants reported positive practice impacts, including improved satisfaction with managing children with pain. Exploratory analyses showed a trend of greater engagement from ECHO® learners after onset of the COVID-19 pandemic. CONCLUSIONS: Project ECHO® is a feasible and impactful model for virtual education of interprofessional HCPs in managing pediatric pain.

Harnessing Life's Slings and Arrows: The Science and Opportunities for Mindfulness Meditation During a Global Pandemic and Beyond.

ABSTRACT: We are at a difficult time in history with societal increases in stress, loneliness, and psychopathology, along with high rates of obesity, sedentary lifestyles, and chronic pain. Mindfulness interventions offer promise to address these societal issues. However, in order to make best use of the opportunities revealed by our current challenges, we must: (1) tackle these issues head-on with inclusive, innovative, and creative experimental designs and interventions, and (2) collectively adhere to rigorous, high quality methods so as to provide an evidence-based integration of mindfulness interventions into mainstream medicine and public health.We find there are several areas for which important advances are happening, including sampling socially diverse populations, examining mechanisms of action, pain management, and health behaviors. Furthermore, rigorous methods, including measurement, causal inference from control groups, delivery and scalability of mindfulness interventions, and effect modifiers to determine who mindfulness programs work best for are also gaining traction. This special issue on Mindfulness: Biobehavioral Mechanisms and Health Outcomes attends to many of these issues, several of which are highlighted in this editorial perspective.

Implementation of a Hybrid Care Model for Telemedicine-based Cancer Pain Management at the Cancer Center of Naples, Italy: A Cohort Study.

BACKGROUND/AIM: Telemedicine, the remote delivery of healthcare services, represents a great opportunity for cancer pain management. A care model of telemedicine that combines remote visits and hospital access could be an effective and safe strategy for pain management of cancer patients. PATIENTS AND METHODS: A retrospective study was conducted using the dataset of the telemedicine program at the Istituto Nazionale Tumori of Naples, Italy for assessing the efficacy of a telehealth-based model of care. Demographic, clinical, and process variables were investigated. RESULTS: A total of 226 cases and 489 visits were included in the analysis. The mean age of patients was 63.4 years (SD=12.4 years), and no sex differences were observed. Approximately 55% of patients were ECOG-PS ≤2 and 87% suffered from metastatic disease. More than half of the patients were treated with high doses of opioids. Each patient had a mean of 2 remote visits and half of the patients had more than 1 telehealth consultation. The dropout ratio was 5.3%. Most visits (n=472) were conducted on patients in the Campania Region, Italy. The maximum covered distance from the Cancer Center and the patients' location was 555.22 Km. A significant difference in the overall number of visits (p=0.006) and the number of pro-capita remote visits (p=0.010) was found, in favor of the group of patients treated before the end of the Covid-19 emergency in Italy, compared to those treated after the pandemic. CONCLUSION: Despite various positive outcomes, the analysis highlights several weaknesses, such as the need to assist patients with advanced and non-advanced disease located outside the regional territory. Overall, the telehealth processes should be adapted to post-pandemic scenarios towards their implementation in routine clinical practice.

Effect of the COVID-19 Pandemic on the Rate of Interventional Pain Management Therapies. Could the Application of Personal Protective Equipment Help?

BACKGROUND: Chronic pain symptoms are distressing conditions that necessitate regular visits to  pain therapists and may require interventions, however, the COVID-19 pandemic has caused patients and their therapists to limit both visits and interventions with the transition to telehealth, with little or no preparation or training. This has resulted in the extensive use of over-the counter analgesia and corticosteroids. OBJECTIVES: Our study aimed to evaluate the effect of the COVID-19 pandemic on the rates of counseling and interventional pain management therapies (IPMT), and determine the effects of implementing an infection control program (ICP) and mandating personal protective equipment (PPE) on these rates. STUDY DESIGN: Prospective multicenter survey, based on an online self-assessed questionnaire. SETTING: Departments of Anesthesia, Pain, Intensive Care Unit, Physical Medicine, Rheumatology, and  Rehabilitation at Egyptian University hospitals. METHODS: A self-assessed questionnaire was uploaded on Google forms and links were sent to enrolled therapists with an identification number to allow self-administration and privacy. Feedback was analyzed by 2 authors who were blinded to the identity of the responders. RESULTS: A total of 57.9% of responders increased their patients' contact by phone and video conference. Within 1-4 months after the outbreak began, 59% stopped in-person contact and 38.2% stopped their IPM practice. Prescriptions of analgesics and oral steroids increased by about 50%. The majority of responders complained of a shortage of ventilation appliances in their workplaces. About 50% of them always use ICP, 85% use surgical masks, 61% use gloves, and 45% wear gowns when meeting with patients. After the application of PPE, 45.5% of responders increased their consultation rate and 40% increased their rate of IPMT. LIMITATIONS: This study is limited to being a national study, and so lacked comparative data. CONCLUSION: The COVID-19 outbreak seriously affected the rates of in-person consultations and IPMT for patients with chronic pain and increased the rates of consumption of analgesia and oral steroids. Most responders reported a shortage of PPE especially ventilation appliances in workplaces. A high percentage of responders lack interest in ICP and PPE, despite the positive effects of its application on consultation and IPMT rates.

Pain management recommendations during the progression of SARS-CoV-2 infection.

COVID-19, an infection caused by SARS-CoV-2, had a devastating impact on people's lives. The pandemic placed a heavy burden on healthcare systems and impacted the care of patients, including those with pain. This narrative review aims to highlight the challenges in managing pain and fever resulting from COVID-19 and pre-existing conditions, and to discuss the role of over the counter analgesics as a key part of the COVID-19 treatment regimen. As most patients with COVID-19 are being managed in the outpatient setting, lifestyle interventions and over the counter analgesics are readily available options to effectively treat pain and fever, which can help to decrease the burden on the healthcare system during the COVID-19 pandemic.

COVID-19 is an infection caused by SARS-CoV-2. The COVID-19 pandemic not only affects patient lives, but also heavily impacts healthcare systems. This review aims to discuss the available literature on how to manage pain from COVID-19 and encourage a consensus meeting for recommendations. As most patients with COVID-19 are being managed in the outpatient setting, lifestyle interventions and over the counter analgesics are readily available options to effectively treat pain and fever, which can help to decrease the demand on the healthcare system during the COVID-19 pandemic.

A randomized controlled trial on virtual reality distraction during venous cannulation in young children.

BACKGROUND AND OBJECTIVES: Pain management in children is often inadequate, and the single most common painful procedure in children who are hospitalized is needle procedures. Virtual reality (VR) has been shown to decrease anxiety and pain in children undergoing painful procedures primarily in children from the age of 7 years. Our aim for this study is to investigate patient satisfaction and pain reduction by using a three-dimensional VR interactive game as a distraction in 4-7 years old children during venous cannulation. METHODS: In this randomized clinical trial, we enrolled 106 children aged 4-7 years who were scheduled for venous cannulation. Patients assigned to the control group were adherent to standard of care, including topical numbing cream, positioning, and distraction in this group by games of choice on a tablet/smartphone. In the study group, children were adherent to standard of care and were distracted by an interactive VR game. Primary outcomes were patient satisfaction and the procedural pain assessed by using Wong-Baker Faces Pain Rating Scale; secondary outcomes were the procedural time and any adverse events. RESULTS: We found an overall high level of patient satisfaction with our regime of topical numbing cream, positioning, and distraction. The primary outcome of pain during the procedure was median 20 mm (IQR 0-40) and 20 mm (IQR 0-55) (Wong-Baker 0-100 mm) in the VR group and the control group, respectively (difference: 0 mm, 95%CI: 0-20, p = .19). No significant difference was found in procedural times. The number of adverse effects was low, with no significant difference between the two groups. CONCLUSIONS: VR distraction is an acceptable form of distraction for children 4-7 years old when combined with topical numbing cream and positioning during preoperative venous cannulation. No difference was found between VR- and smartphone/tablet distraction.

Coping with dysmenorrhea: a qualitative analysis of period pain management among students who menstruate.

BACKGROUND: Dysmenorrhea, or period pain, affects up to 95% of menstruating individuals and is a common cause of educational absenteeism among students who menstruate worldwide. Evidence suggests that students may lack sufficient knowledge about their menstrual health, which may impede self-management. The aim of the current study was to explore pain management strategies used by students in Ireland with painful periods and to identify their unaddressed needs across physical, psychological, educational, and social domains. METHODS: This study used a qualitative, interpretive design and opportunity sampling approach to collect and interpret individual accounts of dysmenorrhea from third-level students in Ireland. Data from 21 students were collected using semi-structured online one-to-one interviews and analysed using reflexive thematic analysis. RESULTS: Analysis resulted in the construction of five themes: (1) Pain management is self-directed trial-and-error, (2) Home as safe haven, (3) Prioritising productivity over pain, (4) We're missing an option between 'normalise' and 'medicalise', and (5) Cycle of censorship and concealment. Overall, limited formal education on dysmenorrhea and prevailing negative attitudes towards menstruation create an unsupportive environment for students to learn adequate coping skills. Beyond education, menstrual stigma may also restrict the availability of clear management guidance in domestic and medical spheres. Experiences of dysmenorrhea were also influenced by the COVID-19 pandemic, where work-from-home measures were viewed favourably by individuals with dysmenorrhea. CONCLUSIONS: This study indicates that students in Ireland are inadequately prepared to cope with dysmenorrhea. The current findings have substantial implications for evaluating and reforming current menstrual education standards, in addition to clarifying the negative effects of social stigma on menstrual health literacy.

A Dyadic Pain Management Program for Community-Dwelling Older Adults with Chronic Pain: Study Protocol for a Cluster Randomized Controlled Trial.

Community-dwelling older adults suffer from chronic pain. Pain negatively affects their physical and psychosocial wellbeing. The majority of pain management education and programs focus only on older adults. Their informal caregivers should be involved in pain management. A dyadic pain management program for reducing pain and psychological health symptoms, and improving pain self-efficacy, quality of life, and physical function in older adults is proposed for evaluation of its effectiveness. This will be a cluster randomized controlled trial. Community-dwelling older adults aged 60 or above and their informal caregivers will be recruited. The dyadic pain management program will be an eight-week group-based program. The participants in the experimental group will receive four weeks of center-based, face-to-face activities and four weeks of digital-based activities via a WhatsApp group. The control group will receive the usual care and a pain management pamphlet. Data will be collected at baseline, and at the eighth-week and sixteenth-week follow-up session. The outcome measurements will include pain intensity, pain self-efficacy, perceived quality of life, depression, anxiety, and stress levels. Data on the caregiver burden will be collected from the informal caregivers. Because of the COVID-19 pandemic, all social activities have been suspended. In the near future, as the pandemic subsides, the dyadic pain management program will be launched to benefit community-dwelling older adults and informal caregivers and to reduce their pain and the care burden, respectively.

Optimizing chronic pain management through patient engagement with quality of life measures: a randomized controlled trial.

CONTEXT: Health-related quality of life (HRQOL) represents a new approach for guiding chronic pain management because it is patient-centered and more likely to be understood and accepted by patients. OBJECTIVES: To assess the value and utility of an eHealth intervention for patients with chronic low back pain (CLBP) that was primarily based on HRQOL measures and to measure the clinical outcomes associated with its use. METHODS: A randomized controlled trial was conducted within the Pain Registry for Epidemiological, Clinical, and Interventional Studies and Innovation (PRECISION Pain Research Registry) using participants screened from November 2019 through February 2021. A total of 331 registry participants within the 48 contiguous states and the District of Columbia met the eligibility criteria, which included having CLBP and HRQOL deficits. Almost three-fourths of the participants were enrolled after onset of the COVID-19 pandemic. The participants were randomized to an eHealth intervention for HRQOL or wait list control. The primary outcome measures involved HRQOL based on the Patient-Reported Outcomes Measurement Information System (PROMIS), including the SPADE cluster (Sleep disturbance, Pain interference with activities, Anxiety, Depression, and low Energy/fatigue) and each of its five component scales. Secondary outcome measures involved low back pain intensity and back-related functioning. Changes over time for each outcome measure reported by participants in each treatment group were compared utilizing the student's t-test for statistical significance and Cohen's d statistic for clinical importance. Outcomes were reported as between-group differences in change scores and the d statistic, with positive values favoring the experimental treatment group. RESULTS: There were no significant differences between the experimental and control treatment groups for changes over time in any primary outcome measure. The d statistic (95% confidence interval) for the difference between the experimental and control treatment groups on the SPADE cluster was 0.04 (-0.18-0.25). The corresponding d statistics for the SPADE scales ranged from -0.06 (-0.27 to 0.16) for anxiety to 0.11 (-0.10 to 0.33) for sleep disturbance. There were also no significant or clinically important differences between the experimental and control treatment groups on the secondary outcome measures. Additionally, in subgroup analyses involving participants treated by osteopathic vs allopathic physicians, no significant interaction effects were observed. CONCLUSIONS: The eHealth intervention studied herein did not achieve statistically significant or clinically important improvements in any of the primary or secondary outcome measures. However, the validity and generalizability of the findings may have been limited by the unforeseen onset and impact of the COVID-19 pandemic shortly after beginning the trial.

Attitude changes toward chronic pain management of pain physicians in Turkey during the COVID-19 pandemic.

OBJECTIVES: The coronavirus disease 2019 (COVID-19) pandemic has led to a decrease or interruption of outpatient and elective interventional procedures of patients with chronic pain worldwide. This study aims to investigate the attitude changes of pain physicians in Turkey in the treatment of chronic pain patients and the compliance of these changes with the published guidelines. METHODS: A total of 113 pain physicians were sent an online questionnaire forms to be completed voluntarily. RESULTS: The questionnaire was completed by 61% (n=69) of the total physicians to whom it was sent to. The rate of physicians who did not request the COVID-19 polymerase chain reaction test from their patients before any interventional procedure was 48% (n=33). The rate of physicians who ignored the immunosuppressive effect and while prescribing opioids and did not reduce the opioid dose was 42% (n=29). The rate of physicians who did not reduce the corticosteroid dose they used in their interventional procedures was 61% (n=42). It was determined that 49.1% (n=28) of physicians who applied facet joint medial branch radiofrequency denervation (RFD) during the pandemic period decreased the number of diagnostic blocks they ap-plied compared to the pre-pandemic period. It was found that 51% (n=24) of the physicians who applied genicular nerve RFD during this period did not perform any diagnostic blocks. CONCLUSION: It was found that the majority of physicians did not change their preferences in the dose and/or type of opioid and corticosteroid drugs, but they tended to reduce the number of diagnostic blocks they applied before facet joint medial branch/genicular RFD procedures.

CYP2D6 phenotypes and opioid metabolism: the path to personalized analgesia.

INTRODUCTION: Opioids play a fundamental role in chronic pain, especially considering when 1 of 5 Europeans adults, even more in older females, suffer from it. However, half of them do not reach an adequate pain relief. Could pharmacogenomics help to choose the most appropriate analgesic drug? AREAS COVERED: The objective of the present narrative review was to assess the influence of cytochrome P450 2D6 (CYP2D6) phenotypes on pain relief, analgesic tolerability, and potential opioid misuse. Until December 2021, a literature search was conducted through the MEDLINE, PubMed database, including papers from the last 10 years. CYP2D6 plays a major role in metabolism that directly impacts on opioid (tramadol, codeine, or oxycodone) concentration with differences between sexes, with a female trend toward poorer pain control. In fact, CYP2D6 gene variants are the most actionable to be translated into clinical practice according to regulatory drug agencies and international guidelines. EXPERT OPINION: CYP2D6 genotype can influence opioids' pharmacokinetics, effectiveness, side effects, and average opioid dose. This knowledge needs to be incorporated in pain management. Environmental factors, psychological together with genetic factors, under a sex perspective, must be considered when you are selecting the most personalized pain therapy for your patients.

Use of Ultrasound-Guided Interfascial Plane Blocks in Anterior and Lateral Thoracic Wall Region as Safe Method for Patient Anesthesia and Analgesia: Review of Techniques and Approaches during COVID-19 Pandemic.

Ultrasound-guided interfascial plane blocks performed on the anterior and lateral thoracic wall have become an important adjuvant method to general anesthesia and an independent method of local anesthesia and pain management. These procedures diminish the harmful effects of anesthesia on respiratory function and reduce the risk of phrenic nerve paralysis or iatrogenic pneumothorax. In postoperative pain management, interfascial plane blocks decrease the dosage of intravenous drugs, including opioids. They can also eliminate the complications associated with general anesthesia when used as the sole method of anesthesia for surgical procedures. The following procedures are classified as interfascial plane blocks of the anterior and lateral thoracic wall: pectoral nerve plane block (PECS), serratus anterior plane block (SAP), transversus thoracic muscle plane block (TTP), pectoral interfascial plane block (PIF), and intercostal nerve block (ICNB). These blocks are widely used in emergency medicine, oncologic surgery, general surgery, thoracic surgery, cardiac surgery, orthopedics, cardiology, nephrology, oncology, palliative medicine, and pain medicine. Regional blocks are effective for analgesic treatment, both as an anesthesia procedure for surgery on the anterior and lateral thoracic wall and as an analgesic therapy after trauma or other conditions that induce pain in this area. In the era of the COVID-19 pandemic, ultrasound-guided interfascial plane blocks are safe alternatives for anesthesia in patients with symptoms of respiratory distress related to SARS-CoV-2 and appear to reduce the risk of COVID-19 infection among medical personnel.

Closed-Loop Systems in Neuromodulation: Electrophysiology and Wearables.

Most currently available neuromodulation techniques for pain work through an open-loop system. The distance between the epidural space and the target of the stimulation in a dynamic body can change because of physiologic conditions. The closed-loop system in spinal cord neuromodulation consists of an integrated system that records real-time electrophysiological activity in the form of evoked compound action potentials and uses it in a feedback mechanism to adjust stimulus output. Wearables represent newly developed technologies that have gained traction in recent years. Their application in pain management is still developing but promising.

Trauma pain management in the emergency department: use of methoxyflurane as a patient-administered analgesic.

Evidence suggests that pain is highly prevalent among patients with traumatic injuries who attend emergency departments (EDs), yet accurate assessment and management of patients with acute pain can be challenging in this setting. Effective and rapid pain management is beneficial for patients and can support timely discharge from the ED, which is particularly important in the context of the coronavirus disease 2019 (COVID-19) pandemic. This article describes a service development project that introduced the use of a patient-administered analgesic, methoxyflurane, for patients with traumatic injuries with moderate to severe pain in one ED. The author outlines the benefits and rationale for using methoxyflurane as a first-line analgesic in this patient group and describes the main elements of training sessions for emergency nurses and other ED clinicians in the administration and supervision of patient-administered methoxyflurane.