Social Interactions and Social Activities After Burn Injury: A Life Impact Burn Recovery Evaluation (LIBRE) Study

Moderation Effects of Daily Behavior on Associations Between Symptoms and Social Participation Outcomes After Burn Injury: A 6-Month Digital Phenotyping Study

OBJECTIVE

To examine the moderation effects of daily behavior on the associations between symptoms and social participation outcomes after burn injury.

DESIGN

A 6-month prospective cohort study.

SETTING

Community.

PARTICIPANTS

Twenty-four adult burn survivors.

INTERVENTIONS

Not applicable.

MAIN OUTCOME MEASURES

Symptoms and social participation outcomes were assessed weekly using smartphone surveys, including symptoms of pain (Patient-Reported Outcomes Measurement Information System [PROMIS] Pain Intensity and Pain Interference), anxiety (PROMIS Anxiety), and depression (Patient Health Questionnaire), as well as outcomes of social interactions and social activities (Life Impact Burn Recovery Evaluation [LIBRE] Social Interactions and Social Activities). Daily behaviors were automatically recorded by a smartphone application and smartphone logs, including physical activity (steps, travel miles, and activity minutes), sleep (sleep hours), and social contact (number of phone calls and message contacts).

RESULTS

Multilevel models controlling for demographic and burn injury variables examined the associations between symptoms and social participation outcomes and the moderation effects of daily behaviors. Lower (worse) LIBRE Social Interactions and LIBRE Social Activities scores were significantly associated with higher (worse) PROMIS Pain Intensity, PROMIS Pain Interference, PROMIS Anxiety, and Patient Health Questionnaire-8 scores (P<.05). Additionally, daily steps and activity minutes were associated with LIBRE Social Interactions and LIBRE Social Activities (P<.05), and significantly moderated the association between PROMIS Anxiety and LIBRE Social Activities (P<.001).

CONCLUSIONS

Social participation outcomes are associated with pain, anxiety, and depression symptoms after burn injury, and are buffered by daily physical activity. Future intervention studies should examine physical activity promotion to improve social recovery after burns.

Return-to-employment for working-aged adults after burn injury: A mixed methods scoping review

BACKGROUND

This scoping review aimed to identify the barriers, facilitators and benefits of returning to work following burn injury, outcome measures used, management strategies, and models of care.

OBJECTIVE

To provide a comprehensive overview about working-aged adults returning to their preinjury employment after burn injury.

METHODS

We followed a pre-determined scoping review protocol to search MEDLINE, CINAHL, Embase, PsycINFO, PubMed, Scopus, CCRCT and CDSR databases between 2000 to December 2023. Papers reporting primary data from previously employed adults with cutaneous burn injuries were included.

RESULTS

In all, 90 articles met the review criteria. Return-to-work was both an outcome goal and process of recovery from burn injury. Physical and psychological impairments were identified barriers. Job accommodations and modifications were important for supporting the transition from hospital to workplace. Employment status and quality of life sub-scales were used to measure return-to-work.

CONCLUSIONS

Consistent definitions of work and measurements of return-to-employment after burn injury are priorities for future research. Longitudinal studies are more likely to capture the complexity of the return-to-employment process, its impact on work participation and changes in employment over time. The social context of work may assist or hinder return-to-work more than physical environmental constraints. Equitable vocational support systems would help address disparities in vocational rehabilitation services available after burn injury.

The long-term intercorrelation between post-burn pain, anxiety, and depression: a post hoc analysis of the "RE-ENERGIZE" double-blind, randomized, multicenter placebo-controlled trial

BACKGROUND

Despite the growing prevalence of burn survivors, a gap persists in our understanding of the correlation between acute burn trauma and the long-term impact on psychosocial health. This study set out to investigate the prevalence of long-term pain and symptoms of anxiety and depression in survivors of extensive burns, comparing this to the general population, and identify injury and demographic-related factors predisposing individuals to psychosocial compromise.

METHODS

RE-ENERGIZE was an international, double-blinded, randomized-controlled trial that enrolled 1200 patients with partial- or full-thickness burns that required surgical treatment. For the post hoc analysis, we excluded participants who did not complete the Short Form Health Survey (SF-36) questionnaire. Normative data were taken from the 2021 National Health Interview Survey dataset. Propensity score matching was performed using the nearest-neighbor 1-to-1 method, and the two cohorts were compared in terms of chronic pain, and symptoms of anxiety and depression. A multivariable analysis was performed on the burns cohort to identify factors predicting post-discharge pain and symptoms of anxiety and depression.

RESULTS

A total of 600 burn patients and 26,666 general population adults were included in this study. Following propensity score matching, both groups comprised 478 participants each, who were predominately male, white, overweight and between 20 and 60 years old. Compared to the general population, burn patients were significantly more likely to report the presence of moderate and a lot of pain (p = 0.002). Symptoms of anxiety were significantly higher in the burn population in two of four levels (most of the time; some of the time; p < 0.0001 for both). Responders in the burn population were significantly less likely to report the absence of depressive symptoms (p < 0.0001). Burn patients were also significantly more likely to report that their mental health affects their social life. TBSA, history of depression, and female sex were identified as independently associated factors for pain, anxiety, and depressive symptoms. The presence of chronic pain and anxiety symptoms independently predicted for symptoms of depression.

CONCLUSIONS

Analyzing the largest multicenter cohort of patients with extensive burns, we find that burn injury is associated with chronic pain, and symptoms of anxiety and depression. In addition, TBSA-burned and history of depression directly correlate with the prevalence of chronic pain, and symptoms of anxiety and depression. Finally, pain, and symptoms of anxiety and depression are interrelated and may have interactive effects on the process of recovery following burn injury. Burn patients would, therefore, benefit from a multidisciplinary team approach with early mobilization of pain and mental health experts, in order to promptly prevent the development of psychosocial challenges and their consequences.

Examining the association between military service history and outcomes after burn injury

INTRODUCTION

The association between military service history and long-term outcomes after burn injury is unknown. This study uses data from the Burn Model System National Database to compare outcomes of individuals with and without self-reported military service history.

METHODS

Outcome measures were assessed at 12 months after injury including the Veterans Rand-12 Item Health Survey/Short Form-12, Satisfaction With Life Scale, Patient Reported Outcomes Measure Information System 29, 4-D Itch scale, Post Traumatic Stress Disorder Check List - Civilian Version, self-reported Post Traumatic Stress Disorder, and employment status. This study included 675 people with burns of whom 108 reported a history of military service.

RESULTS

The military service history group was more likely to be older, and male. Those with military service were most likely to be on Medicare insurance and those without military service history were most likely to be on Private Insurance/HMP/PPO. No significant differences were found between those with and without military service history in the outcome measures.

CONCLUSIONS

Further research should examine differences in outcomes between civilians and those with military service history, including elements of resilience and post traumatic growth.

Predictors at 6 and 12 Months for Social Participation Outcome at 24 Months in the Adult Burn Injury Population: A Burn Model System National Database Study

OBJECTIVE

To identify clinical factors (physical and psychological symptoms and post-traumatic growth) that predict social participation outcome at 24-month after burn injury.

DESIGN

A prospective cohort study based on Burn Model System National Database.

SETTING

Burn Model System centers.

PARTICIPANTS

181 adult participants less than 2 years after burn injury (N=181).

INTERVENTIONS

Not applicable.

MAIN OUTCOME MEASURES

Demographic and injury variables were collected at discharge. Predictor variables were assessed at 6 and 12 months: Post-Traumatic Growth Inventory Short Form (PTGI-SF), Post-Traumatic Stress Disorder Checklist Civilian Version (PCL-C), Patient-Reported Outcomes Measurement Information System (PROMIS-29) Depression, Anxiety, Sleep Disturbance, Fatigue, and Pain Interference short forms, and self-reported Heat Intolerance. Social participation was measured at 24 months using the Life Impact Burn Recovery Evaluation (LIBRE) Social Interactions and Social Activities short forms.

RESULTS

Linear and multivariable regression models were used to examine predictor variables for social participation outcomes, controlling for demographic and injury variables. For LIBRE Social Interactions, significant predictors included the PCL-C total score at 6 months (β=-0.27, P<.001) and 12 months (β=-0.39, P<.001), and PROMIS-29 Pain Interference at 6 months (β=-0.20, P<.01). For LIBRE Social Activities, significant predictors consisted of the PROMIS-29 Depression at 6 months (β=-0.37, P<.001) and 12 months (β=-0.37, P<.001), PROMIS-29 Pain Interference at 6 months (β=-0.40, P<.001) and 12 months (β=-0.37, P<.001), and Heat Intolerance at 12 months (β=-4.55, P<.01).

CONCLUSIONS

Post-traumatic stress and pain predicted social interactions outcomes, while depression, pain and heat intolerance predicted social activities outcomes in people with burn injury.

Identifying Populations at Risk for Difficulty Managing Emotions and Social Interactions After Burn Injury

There has been conflicting data on the relationship between burn severity and psychological outcomes. The present study aims to characterize the baseline psychosocial disposition of adults attending outpatient burn clinic at a large urban safety net hospital, as well as the impact of clinical course on self-reported psychosocial well-being. Adult patients attending outpatient burn clinic completed survey questions from the National Institutes of Health Patient-Reported Outcomes Measurement Information System Managing Chronic Conditions: Self-Efficacy for Managing Social Interactions (SEMSI-4) and Managing Emotions (SEME). Sociodemographic variables were collected from surveys and retrospective chart review. Clinical variables included total body surface area burned, initial hospital length of stay, surgical history, and days since injury. Poverty level was estimated by U.S. census data using patient's home ZIP code. Scores on SEME-4 and SEMSI-4 were compared to the population mean by one-sample T-test, and independent variables evaluated for associations with managing emotions and social interactions by Tobit regression while adjusting for demographic variables. The 71 burn patients surveyed had lower scores in SEMSI-4 (mean = 48.0, P = .041) but not SEME-4 (mean = 50.9, P = .394) versus the general population. Marital status and neighborhood poverty level were associated with SEMSI-4, while length of stay and % total body surface area burned were associated with SEME-4. Patients who are single or from poorer neighborhoods may have difficulty interacting with their environment after burn injury and need extra social support. Prolonged hospitalization and increased severity of burn injury may have more impact on emotional regulation; these patients may benefit from psychotherapy during recovery.

The Impact of Burn Size on Community Participation: A Life Impact Burn Recovery Evaluation (LIBRE) Study

OBJECTIVE

To assess the association of burn size and community participation as measured by the LIBRE Profile.

SUMMARY OF BACKGROUND DATA

Burn size is an established clinical predictor of survival after burn injury. It is often a factor in guiding decisions surrounding early medical interventions; however, literature is inconclusive on its relationship to quality of life outcomes.

METHODS

This is a secondary data analysis of a cross-sectional survey of adult burn survivors. Self-reported data were collected between October 2014 and December 2015 from 601 burn survivors aged ≥18 years with ≥5% total body surface area (TBSA) or burns to critical areas. Sociodemographic characteristics were compared between participants with small burns (≤40% TBSA burned) and large burns (>40% TBSA burned). Ordinary least squares regression models examined associations between burn size and LIBRE Profile scale scores with adjustments for sex, current work status, burns to critical areas, and time since burn injury.

RESULTS

The analytic sample comprised 562 participants with data available for burn size. 42% of respondents had large burns (>40% TBSA burned) and 58% reported smaller burns (TBSA ≤40%). In adjusted regression models, patients with large burns tended to score lower on the Social Activities and Work & Employment scales ( P < 0.05) and higher on the Family & Friends scale ( P < 0.05). Participants with burns >40% TBSA scored lower for several individual items in the Social Activities scale and one item in the Work & Employment scale ( P < 0.05).

CONCLUSIONS

Increasing burn size was found to be negatively associated with selected items of Work & Employment and Social Activities, but positively associated with aspects of Family & Friend Relationships. Future longitudinal studies are necessary to assess and understand the long-term social impact of burn injuries on adult populations.

Prevalence and risk factors for acute stress disorder and posttraumatic stress disorder after burn injury

BACKGROUND

Psychological consequences of burn injury can be profound. Acute stress disorder (ASD) and posttraumatic stress disorder (PTSD) are known sequelae, but routine identification is challenging. This study aims to identify patient characteristics associated with outpatient positive screens.

METHODS

The Primary Care Posttraumatic Stress Disorder questionnaire (PC-PTSD-4) was administered at initial outpatient Burn Center visits between 5/2018-12/2018. Demographics, injury mechanism, and total body surface area (TBSA) were recorded. Those with ≥3 affirmative answers were considered positive. Patients with positive and negative screens were compared.

RESULTS

Of 307 surveys collected, 292 (median TBSA 1.5 %, IQR 0.5-4.0 %) remained for analysis after exclusions. Of those, 24.0 % screened positive. Positive screens were associated with presence of a deep component of the injury, injury mechanism, upper extremity involvement, ICU admission, and prolonged hospital length of stay.

CONCLUSIONS

Numerous factors distinguish burn injury from other traumatic mechanisms and contribute to disproportionate rates of traumatic stress disorders. Optimization of burn-oriented ASD and PTSD screening protocols can enable earlier intervention.

Follow-up After Burn Injury Is Disturbingly Low and Linked With Social Factors

For medical and social reasons, it is important that burn patients attend follow-up appointments (FUAs). Our goal was to examine the factors leading to missed FUAs in burn patients. A retrospective chart review was conducted of adult patients admitted to the burn center from 2016 to 2018. Data collected included burn characteristics, social history, and zip code. Data analysis was conducted using chi-square, Wilcoxon Rank-Sum tests, and multivariate regression models. A total of 878 patients were analyzed, with 224 (25.5%) failing to attend any FUAs and 492 (56.0%) missing at least one appointment (MA). Patients who did not attend any FUAs had smaller burns (4.5 [8]% vs 6.5 [11]% median [inter quartile range]), traveled farther (70.2 [111.8] vs 52.5 [76.7] miles), and were more likely to be homeless (22.8% vs 6.9%) and have drug dependence (47.3% vs 27.2%). Patients who had at least one MA were younger (42 [26] vs 46 [28] years) and more likely to be homeless (17.5% vs 2.6%) and have drug dependence (42.5% vs 19.4%). On multivariate analysis, factors associated with never attending an FUA were distance from hospital (odds ratio [OR] 1.004), burn size (OR 0.96), and homelessness (OR 0.33). Factors associated with missing at least one FUA: age (OR 0.99), drug dependence (OR 0.46), homelessness (OR 0.22), and Emergency Department visits (OR 0.56). A high percentage of patients fail to make any appointment following their injury and/or have at least one MA. Both FUAs and MAs are influenced by social determinants of health.

A review of burn symptoms and potential novel neural targets for non-invasive brain stimulation for treatment of burn sequelae

Burn survivors experience myriad associated symptoms such as pain, pruritus, fatigue, impaired motor strength, post-traumatic stress, depression, anxiety, and sleep disturbance. Many of these symptoms are common and remain chronic, despite current standard of care. One potential novel intervention to target these post burn symptoms is transcranial direct current stimulation (tDCS). tDCS is a non-invasive brain stimulation (NIBS) technique that modulates neural excitability of a specific target or neural network. The aim of this work is to review the neural circuits of the aforementioned clinical sequelae associated with burn injuries and to provide a scientific rationale for specific NIBS targets that can potentially treat these conditions. We ran a systematic review, following the PRISMA statement, of tDCS effects on burn symptoms. Only three studies matched our criteria. One was a feasibility study assessing cortical plasticity in chronic neuropathic pain following burn injury, one looked at the effects of tDCS to reduce pain anxiety during burn wound care, and one assessed the effects of tDCS to manage pain and pruritus in burn survivors. Current literature on NIBS in burn remains limited, only a few trials have been conducted. Based on our review and results in other populations suffering from similar symptoms as patients with burn injuries, three main areas were selected: the prefrontal region, the parietal area and the motor cortex. Based on the importance of the prefrontal cortex in the emotional component of pain and its implication in various psychosocial symptoms, targeting this region may represent the most promising target. Our review of the neural circuitry involved in post burn symptoms and suggested targeted areas for stimulation provide a spring board for future study initiatives.

The Impact of Peer Support Group Programs on Psychosocial Outcomes for Burn Survivors and Caregivers: A Review of the Literature

Peer support group programs are often recommended for burn survivors as a way to facilitate their psychosocial recovery and reintegration into the community. Such programs provide opportunities for burn patients and their caretakers to access emotional and informational support from healthcare providers and other survivors in inpatient or outpatient settings. Despite their popularity, however, there is little information currently available on the efficacy of these groups. In response, we reviewed the existing literature on peer support group programs and their impacts on psychosocial outcomes for burn survivors and their caregivers. A systematic review of the literature utilizing PubMed, PsycINFO, and Medline databases was conducted for articles published between 1990 and 2018. Twenty-five articles including inpatient, outpatient, integrative peer support groups, and burn camps met our inclusion criteria. All inpatient peer support group program articles (n = 4) reported associations with psychosocial improvements. Integrative peer support group program articles (n = 2) reported associations with social integration and reduction in post-traumatic stress and anxiety. All outpatient peer support group program articles (n = 8) demonstrated associations with psychosocial outcomes involving life satisfaction, acceptance of self, and reduced levels of isolation. Findings were less consistent for burn camps: eight articles suggested improvements in psychological outcomes while three articles reported no significant psychosocial effects. Although these results are encouraging, further study is indicated both to replicate these findings, and to determine the optimal implementation of inpatient and outpatient peer support programs.

Sexual activity and romantic relationships after burn injury: A Life Impact Burn Recovery Evaluation (LIBRE) study

BACKGROUND

Engaging in healthy sexual activity and romantic relationships are important but often neglected areas of post-burn rehabilitation. The degree to which persons with burn injuries engage in sexual activity and romantic relationships is not well understood. This study examined demographic and clinical characteristics predicting engagement in sexual activity and romantic relationships in a sample of adult burn survivors compared to a general United States sample.

METHODS

Data for the adult burn survivor sample were from 601 adult burn survivors who participated in field-testing for the calibration of the Life Impact Burn Recovery Evaluation (LIBRE) Profile, a burn-specific instrument assessing social participation on six scales including sexual activity and romantic relationships. Comparison data were obtained from a general population sample of 2000 adults through sample matching. Demographic predictors of sexual activity and romantic relationship status were examined in each sample using modified Poisson regression analyses. Clinical predictors of engaging in sexual activity and romantic relationships were also examined in the LIBRE sample.

RESULTS

Participants were slightly more likely to report being sexually active in the adult burn survivor sample than in the general sample (65% vs. 57%, p < 0.01). There was not a significant difference in romantic relationship status between the two samples (64% vs. 62%, p = 0.31). In multivariable regression analyses, men in both samples were more likely to report being in a sexual relationship (RR in LIBRE sample = 1.23, 95% CI 1.08-1.39; RR in general sample = 1.10, 95% CI 1.02-1.18). Participants in both samples who were not working were less likely to report being sexually active or in a romantic relationship (RRs ranging from 0.73 to 0.83, p < 0.05 for all estimates). In the adult burn survivor sample, respondents with hand burns were more likely to report being sexually active and in a romantic relationship (RR = 1.16, 95% CI 1.01-1.33). Time since burn injury, burn size, and burns to other critical areas were not significantly associated with either outcome in adjusted analyses.

CONCLUSIONS

The likelihood of engaging in sexual activity and romantic relationships is similar among adult burn survivors and the comparison group representing a general United States sample of adults. Further research addressing sexual activity and romantic relationships after burn injuries will help to foster better patient-clinician dialogue, pinpoint barriers, design interventions, and allocate appropriate resources.

A quantitative systematic review assessing the impact of burn injuries on body image

This study systematically reviewed the quantitative evidence for the impact of burn injuries on body image. Primary research assessing body image using standardized scales published in peer-reviewed journals were systematically searched using the electronic databases PubMed, Scopus, CINHAL, and PsycINFO in January 2020. Studies reporting relationships between characteristics related to burn injury and body image outcomes were included. Quality was assessed using the JBI Critical Appraisal Checklist for Analytical Cross-Sectional Studies. Included studies varied in comparison methods and body image measures, with most reporting cross-sectional relationships. Among the 33 included studies, 12 reported a negative association between burn severity and body image, 14 reported no significant association, six showed mixed (negative and null) results across the burn injury measures, and one reported more positive body image among burn survivors compared to those without burns. This review identified evidence supporting the association between burn severity and lower satisfaction with body image. Individuals with body image concerns, particularly those with higher burn severity and women, may benefit most from interventions that address self-acceptance and coping mechanisms. Further cross-sectional studies with representative control groups and longitudinal studies with longer follow-up periods are required.

"On the Recovery Journey:" An Integrative Review of the Needs of Burn Patients From Immediate Pre-Discharge to Post-Discharge Period Using the Omaha System

BACKGROUND

To establish a conceptual understanding of the needs of burn patients, the specific research question asked is: "What are the needs of burn patients from 1-week pre-discharge to the post-discharge period?"

METHODS

Whittemore and Knafl's integrative review approach was used to answer the review question. The databases searched were the Cumulative Index to Nursing and Allied Health Literature (CINAHL), PubMed, Embase, and Scopus. Thirty-two primary studies were retained at the end of the screening process. Directed content analysis was undertaken, with the Omaha system as an organizing framework.

RESULTS

Recovery after burns is not a linear process, but an intricate one filled with varied needs in the physiological (pain, skin, neuro-musculo-skeletal, and infection), psychosocial (social contact, role changes, spirituality, grief, mental health, and sexuality), health-related behavior (nutrition, sleep and rest patterns, and physical activity), and environmental (income) domains of the Omaha system. The nature and intensity of these needs change over time, suggesting that recovery for the burn patient is an ongoing process.

CONCLUSIONS

Several needs exist from 1 week before discharge to the post-discharge period. The mutual relationship and evolving nature of these needs create an avenue for a flexible, regular, holistic transitional program, similar to the support offered to persons living with chronic conditions.

CLINICAL RELEVANCE

Hospital discharge does not imply an end to the recovery of burn patients, and burn survivors still require holistic care even after discharge. The review shows the applicability of the Omaha system in exploring and classifying the needs of burn survivors and situates nursing at the core of such a program. It is possible that a nurse-led program of care needs to be considered.

A concept analysis of burn care in nursing

BACKGROUND

Burn is a life-threatening injury that requires long-term treatment and concomitant hospital stay. Relevant clinical studies in burns have been accomplished and published in the literature. However, none of these studies reported the concept analysis of burn care in nursing. Therefore, analysing the concept of burn care acts as an imperative strategy to provide comprehensive management of burn injury.

OBJECTIVE

The study aims to describe the concept of burn care in nursing.

METHOD

Walker and Avant's method (2013) was used to achieve the objective of the study.

FINDINGS

A model of burn care in nursing was generated that consists of assessment and diagnosis, intervention and evaluation. In addition, the biopsychosocial model developed by George L. Engel (1977) was also integrated to examine how these aspects play a significant role in burn care.

CONCLUSION

Implementing the concept of burn care will improve the quality of nursing care, cosmetic outcomes and vice versa, reduce the comorbidities on burn injury.

Home care for burn survivors: A phenomenological study of lived experiences

Background: Burn injuries have negative impacts on all dimensions of the quality of life of burn victims. This study aimed to explore the lived experiences of burn survivors after a 6-month period of home care following hospital discharge.Method: This is a qualitative study with a phenomenological approach. Sixteen burn survivors from a university hospital in Kermanshah province participated in the study. Qualitative data were analyzed by Colaizzi's descriptive phenomenological approach.Results: "Rehabilitation in the process of life" was the main theme of the study with four sub-themes, including "conducting process", "caring bridge", "humanitarian commitment for human revival", and "healing care".Conclusions: Home care is necessary for burn survivors after discharge from the hospital. The connection of healthcare services between home and hospital, safety feeling in the patient and his/her family, cost-effectiveness of healthcare services, and encouraging the patient to perform self-care can be achieved by home care follow-ups.

Longitudinal Clinical Trial Recruitment and Retention Challenges in the Burn Population: Lessons Learned From a Trial Examining a Novel Intervention for Chronic Neuropathic Symptoms

Long-term trials are key to understanding chronic symptoms such as pain and itch. However, challenges such as high attrition rates and poor recruitment are common when conducting research. The aim of this work was to explore these issues within a long-term randomized control trial using transcranial direct current stimulation to treat pain and itch. This parallel double blinded, placebo-controlled randomized trial was comprised of 15 transcranial direct current stimulation visits and 7 follow-up visits. Participants were over the age of 18, had a burn injury that occurred at least 3 weeks before enrollment, and reported having pain and/or itch that was moderate to severe in intensity. A total of 31 subjects were randomized into either an active or sham transcranial direct current stimulation groups. There were no significant differences between the groups in terms of age, race, education, baseline depression, or anxiety. The median dropout time was at visit 19 (visit 16 [SE = 1.98] for the sham group and visit 19 [SE = 1.98] for the active group). Analysis showed no differences in the dropout rate between groups [χ2(1) = 0.003, P = .954]. The dropout rate was 46.7% for the sham group and 43.8% for the active group. Overall, 45.2% of the subjects dropped out of the trial. Long-term clinical trials are an essential part of evaluating interventions for symptoms such as chronic pain and itch. However, as seen in this trial, long-term studies in the burn population often face recruitment and adherence challenges.