Role of burn severity and posttraumatic stress symptoms in the co-occurrence of itch and neuropathic pain after burns: A longitudinal study.

Itch and pain are common after burns. Neuropathic mechanisms may underlie both modalities but remain not well-understood. This study aims to prospectively document neuropathic pain symptoms and to identify potential itch symptom profiles that differ regarding duration and co-occurrence with neuropathic pain which may inform underlying pathophysiological mechanisms and respond to different treatments. Adult burn survivors (n = 192) self-reported itch and neuropathic pain at 2 weeks post-discharge, 3, 6, 12, and 18 months post-burn. Based on the presence of itch and pain symptoms over time, participants were allocated to one itch profile: transient itch/pain, chronic itch, or chronic itch & pain. Profiles were compared on itch intensity over time using General Linear Modeling. Age, gender, burn severity, posttraumatic stress (PTS) symptoms and baseline itch intensity were examined as potential predictors of the profiles in a Multi-nominal regression analysis. Neuropathic pain occurred in 54% after discharge which decreased to 24% 18 months later. Itch intensity was highest in the chronic itch & pain profile. Compared to the transient itch profile, the chronic itch & pain profile was associated with higher burn severity and more PTS symptoms. Compared to the chronic itch profile, the chronic itch & pain profile was associated with more PTS symptoms. Findings suggest that biological and psycho-dermatological processes underlie both chronic neuropathic pain and itch processes in burn scars. Further research should elucidate the mechanisms underlying the different itch profiles, with specific focus on skin innervation and psychological factors.

Rasch Analysis of the Burn-Specific Pain Anxiety Scale: Evidence for the Abbreviated Version.

The Burn-Specific Pain Anxiety Scale (BSPAS) estimates pain-related anxiety and determines the effect of treatment in patients with burns, especially regarding wound care. This study aimed to analyze the 9-item and the abbreviated 5-item BSPAS by the Rasch model. This prospective study included 161 patients admitted to Dutch burn centres. The BSPAS was administered during hospital stay resulting in 314 self-reports and was analysed using the Rasch unidimensional measurement model 2030 (RUMM 2030). Unidimensionality of the 9-item and 5-item BSPAS was confirmed. Initially, both versions did not fit the model due to response dependency. After creating subtests, fit to the model improved. After deleting 'feeling insecure about my healing' and creating two subtests with three items, fit of the 9-item BSPAS was obtained, while the 5-item BSPAS fitted after creating a subtest with two items. The Rasch model demonstrated that both versions were unidimensional and were able to fit the model after adjusting for response dependency. Moreover, the 5-item BSPAS could be further improved by deleting 'worrying about the possible pain.' A 4-item abbreviated BSPAS (BSPAS-4I) captures pain-related anxiety and is proposed to be used in future studies and daily practice.

Follow-up in patients with a burn-related emergency department visit: a feasibility study.

BACKGROUND: Data on epidemiology, costs, and outcomes of burn-related injuries presenting at emergency departments (EDs) are scarce. To obtain such information, a questionnaire study with an adequate response rate is imperative. There is evidence that optimized strategies can increase patient participation. However, it is unclear whether this applies to burn patients in an ED setting. The objective of this feasibility study was to optimize and evaluate patient recruitment strategy and follow-up methods in patients with burn injuries presenting at EDs. METHODS: In a prospective cohort study with a 6-month follow-up, patients with burn-related injuries attending two large EDs during a 3-month study period were included. Eligible patients were quasi-randomly allocated to a standard or optimized recruitment strategy by week of the ED visit. The standard recruitment strategy consisted of an invitation letter to participate, an informed consent form, a questionnaire, and a franked return envelope. The optimized recruitment strategy was complemented by a stamped returned envelope, monetary incentive, sending a second copy of the questionnaire, and a reminder by telephone in non-responders. Response rates were calculated, and questionnaires were used to assess treatment, costs, and health-related quality of life. RESULTS: A total of 87 patients were included of which 85 were eligible for the follow-up study. There was a higher response rate at 2 months in the optimized versus the standard recruitment strategy (43.6% vs. 20.0%; OR = 3.1 (95% CI 1.1-8.8)), although overall response is low. Non-response analyses showed no significant differences in patient, burn injury or treatment characteristics between responders versus non-responders. CONCLUSIONS: This study demonstrated that response rates can be increased with an optimized, but more labor-intensive recruitment strategy, although further optimization of recruitment and follow-up is needed. It is feasible to assess epidemiology, treatment, and costs after burn-related ED contacts.

Early management in children with burns: Cooling, wound care and pain management.

INTRODUCTION: Early management in burns, i.e. prior to admission in a burn center, is essential for an optimal process and outcome of burn care. Several publications have reported suboptimal early management, including low levels of pain medication after trauma, especially in children. The aim of this study was to evaluate the current practice in the Netherlands and factors related to early management in pediatric burns, i.e. cooling, wound covering and pain management. To study possible change and improvement over time, two study periods were compared. METHODS: This study involved two periods; January 2002-March 2004 (period 1) and January 2007-August 2008 (period 2). All children (0-15 years of age) with acute burns admitted within 24h after burn to one of the three Dutch Burn centers with a formal referral were eligible. Data were obtained from patient records, both retrospectively and prospectively. RESULTS: A total of 323 and 299 children were included in periods 1 and 2, respectively. The vast majority of children in both study periods had been cooled before admission (>90%). Over time, wound covering increased significantly (from 64% to 89%) as well as pain treatment (from 68% to 79%). Predominantly paracetamol and morphine were used. Referral from ambulance services (OR=41.4, 95%CI=16.6-103.0) or general practitioners (OR=59.7, 95%CI=25.1-141.8) were strong independent predictors for not receiving pre-burn center pain medication. On the other hand, flame burns (OR=0.2, 95%CI=0.1-0.5) and more extensive burns (TBSA 5-10%: OR=0.4, 95%CI=-0.2 to 0.8; TBSA≥10%: OR=0.2, 95%CI=0.1-0.4) were independent predictors of receiving pain medication. CONCLUSION: Referring physicians of children with burns were overall well informed: they cool the wound after burns and cover it before transport to prevent hypothermia and reduce the pain. Additional studies should be conducted to clarify the duration and temperature for cooling to be effective. Furthermore, there is room and a need for improvement regarding early pain management.

The visual analogue thermometer and the graphic numeric rating scale: a comparison of self-report instruments for pain measurement in adults with burns.

To evaluate the adequacy of pain management in burn care, pain measurement is essential. The visual analogue thermometer (VAT) and graphic numeric rating scale (GNRS) are frequently used self-report instruments for burn pain. To legitimise their interchangeable use in research and practice, we aimed to compare self-reports obtained by the VAT and GNRS, the ability of the scales to differentiate background from procedural pain, and to compare potential cutpoints. Adults with acute burns (N=319) participated in the study (67% male, mean age 40.3 years (SD 16), mean TBSA 9.9% (SD 10.4). Correlation coefficients between VAT and GNRS were 0.64 and 0.55 for, respectively, morning and afternoon background pain and 0.51 for procedural pain (p<0.01). VAT scores were lower than GNRS scores for all pain types (p<0.01). Both scales could differentiate background from procedural pain: procedural pain was higher (p<0.01). The standardized response mean was moderate (0.518 for VAT and 0.571 for GNRS). Self-reported thresholds for 'unacceptable pain' by GNRS were higher than by VAT (p<0.001). ROC analyses showed that the highest sensitivity was reached for pain score 2 for both scales. The results suggest that the instruments cannot be used interchangeably without taking their differences into account.

Classification of quality of life subscales within the ICF framework in burn research: identifying overlaps and gaps.

OBJECTIVE: Quality of life (QOL) is one of the leading outcomes in burn care research. This study classifies subscales of common QOL measures within the International Classification of Functioning disability and health (ICF) framework to determine to which extent the measures are complementary or overlapping and to investigate whether the instruments are able to describe the full spectrum of patients' functioning. METHODS: A literature search was performed to determine the most frequently used questionnaires in burn research. The subscales of the three mostly used questionnaires were classified within the ICF framework. RESULTS: Two generic measures, the Short Form-36 items (SF-36) and the European Quality of Life 5 Dimensions (EQ-5D), and a disease specific measure, the Burn Specific Health Scale-Brief (BSHS-B), were analyzed. The BSHS-B covered most domains and was the only scale that included personal factors. The SF-36 included only one domain in the activity limitations and similar to the EQ-5D no contextual factors were included. Environmental factors were not addressed in the questionnaires, even though these may have an impact on the quality of life in patients with burns. CONCLUSION: To capture the full spectrum of dysfunctioning a combination of the BSHS-B with a generic questionnaire seems obligatory. However still some domains of functioning remain uncovered.

Quality of life after burns in childhood (5-15 years): children experience substantial problems.

The aim of our study was to assess prevalence and correlates related to sub optimal outcome after pediatric burns and to make a comparison with pediatric injuries not related to burns. We conducted a cross-sectional study on quality of life (QOL) after burns in a sample (n=138; median 24 months post-burn) of Dutch and Flemish children (5-15 years) with an admission to a burn center. QOL was assessed with the Burn Outcomes Questionnaire (BOQ). The generic EuroQol-5D was used to allow for a comparison with children after injuries not related to burns. More than half of the children had long-term limitations. According to the BOQ, children frequently (>50%) experienced sub optimal functioning on 5 out of 12 dimensions, concerning 'appearance', 'parental concern', 'itch', 'emotional health' and 'satisfaction with current state'. Children with a high total burned surface area (TBSA ≥10%) showed significantly more sub optimal functioning on 'upper extremity function' (OR=5.3; ≥20% TBSA), 'appearance' (OR=5.5; ≥10-20% TBSA), 'satisfaction with current state' (OR=3.4; ≥10-20% TBSA) and 'parental concern' (OR=3.4; ≥10-20% TBSA), compared to children with less than 10% TBSA. Burn victims at 9 months post-injury appeared to be worse off at several health dimensions. After 24 months generic quality of life of in pediatric burns was more comparable to pediatric injuries not related to burns. Children after burns experience substantial problems, mainly on itch and appearance and several psychosocial dimensions. More extensive burns are related to sub optimal functioning. These problems are in part specific for burns and not picked up by generic measures.

PTSD in persons with burns: an explorative study examining relationships with attributed responsibility, negative and positive emotional states.

A sample of 90 persons who had been hospitalized for severe burns were interviewed 1-4 years after the incident. Current DSM-IV post-traumatic stress disorder (PTSD) was assessed with the Composite International Diagnostic Interview. Perceived attributed responsibility and related positive and negative emotional states were examined using a semi-structured interview. Findings showed that PTSD was established in 8% of the participants and partial PTSD in 13%. In a homogeneity analysis (HOMALS), PTSD was associated with the attribution of responsibility for the incident to impersonal relationships and with a negative emotional state. The absence of (partial) PTSD was associated with the attribution of responsibility to close relationships, internal and circumstance-related attribution of responsibility and neutral or forgiving feelings. In logit analyses, both emotional state as well as attributed responsibility are significantly related to (partial) PTSD. However, the model including emotional state showed to have the best fit. Although further research is needed, these results may indicate that professionals working in burn care should consider the emotional state in relation to perceived attribution of responsibility when considering PTSD. Promoting forgiveness may be a beneficial strategy in dealing with post-traumatic stress reactions.

Coping style, personality and adolescent adjustment 10 years post-burn.

An assessment carried out on adolescents aged 11-18 who had suffered severe burns in early childhood 10-11 years previously indicated that the levels of problem behavior were similar and the levels of depression lower than those reported by adolescents in comparable reference populations. Adolescents' self-reports revealed higher levels of the personality traits emotional stability, agreeableness and extraversion. Self-reports further revealed lower levels of passive coping than are found in a normative reference population. Regression analyses showed that less emotional stability, less agreeableness and more passive coping styles were related to increased behavioral problems and symptoms of depression. The authors argue that future studies should focus on resilience and within-group differences.

Itching following burns: epidemiology and predictors.

BACKGROUND: Itching (pruritus) following burns is a well-known clinical problem. However, there are no long-term prospective studies that document the course and the extent of the problem. Studies on risk factors are anecdotal. OBJECTIVES: To study self-reported itching in a multicentre cohort among adults with burns at 3, 12 and 24 months postburn. Further, to examine psychological and injury characteristics in relation to itching at these three points in time. METHODS: Itching was assessed as part of a self-report scar complaint list in a prospective longitudinal cohort study. Injury characteristics, demographics and self-reported post-traumatic stress symptoms were examined as possible risk factors in three linear regression models. RESULTS: A total of 510 persons participated. The reported prevalence rates of mild to severe itching were as high as 87%, 70% and 67% at the three respective points in time. Significant predictors of itching at all three points in time were deep dermal injury and early post-traumatic stress symptoms. Along with these, total burned surface area and female gender were predictors at 3 months postburn. CONCLUSIONS: Itching remains a significant problem over a 2-year period. Individuals having undergone surgical procedures and experiencing early post-traumatic distress are more likely to suffer from long-term and persistent itching. Implications regarding practice and research are discussed.

Non-pharmacological nursing interventions for procedural pain relief in adults with burns: a systematic literature review.

Adult burn patients experience pain during wound care despite pharmacological interventions. Additional nursing interventions are needed to improve pain management. A systematic review was undertaken in order to examine the implications of previous research for evidence based decisions concerning the use of non-pharmacological nursing interventions and for future research. Twenty-six studies met the inclusion criteria and were discussed. The majority of the included studies concerned behavioural nursing interventions and focussed on promotion of psychological comfort. Although 17 studies showed that the intervention had a positive effect on pain outcomes and no adverse effects of the reviewed interventions were reported, the best available evidence was found for active hypnosis, rapid induction analgesia and distraction relaxation. However, in order to reduce methodological limitations, further research is needed before well-founded evidence based decisions for nursing practice can be made. Aspects that seem important for future research, like the type of the intervention, theoretical framework, manner of giving instruction and guidance, cost, outcomes, measurement instruments and data collection points are considered.

Reliability and validity of the Health Outcomes Burn Questionnaire for infants and children in The Netherlands.

The Health Outcomes Burn Questionnaire (HOBQ) is a self-administered questionnaire to monitor outcome after burns in young children. This study aimed to assess feasibility, reliability and validity of the Dutch version of the HOBQ. The HOBQ was adapted into Dutch and tested in a population of children aged 0-4 years with a primary admission to a Dutch burn centre in March 2001-February 2004. Parents of 413 children were sent a questionnaire. To assess validity, a generic outcome instrument was included, the Infant Toddler Quality of Life Questionnaire (ITQOL). The response rate was 50.0% (n=196). Mean self-reported completion time was 16.7 min. The internal consistency of all the HOBQ-scales was good (Cronbach's alpha's>0.69). Test-retest results showed no differences in 7 out of 10 scales. High correlations between HOBQ-scales and conceptually equivalent ITQOL and scales were found in 5 out of 7 comparisons. The majority of the HOBQ-scales (7 out of 10) showed significant differences in the expected direction between children with a long versus short length of stay. Our data support the reliability and validity of the Dutch HOBQ. The HOBQ can be used as a research tool, to monitor functional outcome after burns in young children. Further research in other samples is recommend to fully establish the reliability and validity of the HOBQ.

Internalizing problem behavior and family environment of children with burns: a Dutch pilot study.

The psychosocial development of children with burns is at risk. Children with health care issues tend to develop internalizing problems. Several areas of protective or risk factors were composed into a conceptual model on how internalizing problems might develop or might be prevented after getting burned. The purpose of this study was to explore the relation between post burn internalizing problems on the one hand and child characteristics, burn characteristics and the family environment on the other hand. Data have been collected from 28 mothers and 27 fathers of children with burns (N=29) in six burn centers in The Netherlands and Belgium. The age of the participating children ranged from 2 to 14, TBSA ranged from 1 to 42%. Parents reported problem behavior on the child behavior checklist (CBCL). Three scales of the family environment scale (FES) have been used to explore family conflict, family cohesion and family control. Relations between a clinical level of internalizing problems, reported in 25% of the sample and the family environment were found.

Predictors of chronic posttraumatic stress symptoms following burn injury: results of a longitudinal study.

The authors' goal was to examine the course and predictors of posttraumatic stress symptoms among persons hospitalized for burns. A total of 301 participants completed self-report measures assessing peritraumatic mental state, anxiety related to pain, and posttraumatic stress symptoms. Twenty-six percent of the participants were suffering from posttraumatic stress symptoms at 2-3 weeks postburn and 15% of them at 12 months postburns. In general, a decrease in symptoms was observed over time, although a substantial part of the participants with acute stress symptoms suffers from chronic posttraumatic stress symptoms 1-year postburn. Symptoms were predicted by anxiety measures and objective factors, such as female gender, locus, and severity of injury.