R Holavanahalli

Contractures in burn injury: defining the problem.

This study prospectively examined the incidence and severity of large joint contractures after burn injury and determined predictors of contracture development. Data were collected prospectively from 1993 to 2002 for consecutive adult burn survivors admitted to a regional burn center. Demographic and medical data were collected on each subject. The primary outcome measures included the presence of contractures, number of contractures per patient, and severity of contractures at each of four joints (shoulder, elbow, hip, knee) at time of hospital discharge. Logistic regression analysis was performed to determine predictors of the presence and severity of contractures and a negative binomial regression was performed to determine predictors of the number of contractures. Of the 985 study patients, 381 (38.7%) developed at least one contracture at hospital discharge. Among those with at least one contracture, the mean is three contractures per person. The shoulder was the most frequently contracted joint (38%), followed by the elbow (34%) and knee (22%). Most contractures were mild (60%) or moderate (32%) in severity. Statistically significant predictors of contracture development were length of stay (P < .005) and extent of burn (P = .033) and graft (P < .005). Predictors of the severity of contracture include graft size (P < .005), amputation (P = .034), and inhalation injury (P = .036). More than one third of the patients with a major burn injury developed a contracture at hospital discharge, which highlights the importance of therapeutic positioning and intensive therapy intervention during acute hospitalization. Furthermore, this challenges the burn care community to find new and better ways of preventing contractures after burn injury.

The National Institute on Disability and Rehabilitation Research Burn Model System Database: A Tool for the Multicenter Study of the Outcome of Burn Injury

Advances in critical care and surgical management have significantly improved survival after burn injury over the past several decades. However, today, survival alone is an insufficient outcome. In 1994, the National Institute on Disability and Rehabilitation Research (NIDRR) created a burn model system program to evaluate the long-term sequelae of burn injuries. As part of this multicenter program, a comprehensive demographic and outcome database was developed to facilitate the study of a number of functional and psychosocial outcomes after burns. The purpose of this study is to review the database design and structure as well as the data obtained during the last 10 years. This is a descriptive study of the NIDRR database structure as well as the patient data obtained from the four participating burn centers from 1994 to 2004. Data obtained during hospitalization and at 6, 12, and 24 months after discharge were reviewed and descriptive statistics were calculated for select database fields. The database is divided into several subsections, including demographics, injury complications, patient disposition, and functional and psychological surveys. A total of 4600 patients have been entered into the NIDRR database. To date, 3449 (75%) patients were alive at discharged and consented to follow-up data collection. The NIDRR database provides an expansive repository of patient, injury, and outcome data that can be used to analyze the impact of burn injury on physical and psychosocial function and for the design of interventions to enhance the quality of life of burn survivors.

Psychological distress after major burn injury

Objective: To track the prevalence and stability of clinically significant psychological distress and to identify potentially modifiable inhospital symptoms predictive of long-term distress (physical, psychological, and social impairment). Method: We obtained data from the Burn Model Systems project, a prospective, multisite, cohort study of major burn injury survivors. The Brief Symptom Inventory (BSI) was used to assess symptoms in-hospital (n = 1232) and at 6 (n = 790), 12 (n = 645), and 24 (n = 433) months post burn. Distress was examined dimensionally (BSI’s Global Severity Index (GSI)) and categorically (groups formed by dichotomizing GSI: T score ≥63). Attrition was unrelated to in-hospital GSI score. Results: Significant in-hospital psychological distress occurred in 34% of the patients, and clinically significant and reliable change in symptom severity by follow-up visits occurred infrequently. Principal components analysis of in-hospital distress symptoms demonstrated “alienation” and “anxiety” factors that robustly predicted distress at 6, 12, and 24 months, controlling for correlates of baseline distress. Conclusions: This is the largest prospective, multisite, cohort study of patients with major burn injury. We found that clinically significant in-hospital psychological distress was common and tends to persist. Two structural components of in-hospital distress seemed particularly predictive of long-term distress. Research is needed to determine if early recognition and treatment of patients with in-hospital psychological distress can improve long-term outcomes. TBSA = total body surface area; BMS = burn model systems; PTSD = posttraumatic stress disorder; ASD = acute stress disorder; BSI = Brief Symptom Inventory; ROM = range of motion; GSI = Global Severity Index (of the BSI); OR = odds ratio; RCI = Reliable Change Index; SD = standard deviation; CI = confidence interval.

Symptoms of depression and anxiety as unique predictors of pain-related outcomes following burn injury

Background: The adverse consequences of burn injuries include pain and psychological distress, which show bidirectional associations. However, much of the existing research has relied on global measures of distress that do not separate distinct symptoms of anxiety and depression.Purpose: The purpose is to assess the prospective effects of anxiety and depression on pain and functional outcomes following burn injury.Methods: This article describes a 2-year cohort study in patients hospitalized for serious burn injuries (assessments at discharge and 6-month, 1-year, and 2-year follow-up). Linear mixed effects analyses were conducted to model anxiety and depression’s unique longitudinal effects; at each time point, depressive and anxiety symptoms were studied as predictors of subsequent changes in pain, fatigue, and physical function.Results: When studied in separate prediction models, both depression and anxiety were strong prospective predictors of greater pain, more fatigue, and physical dysfunction at the subsequent time point (ps<.01). However, when both were included in a single model to study their unique effects, depressive symptoms (but not anxiety) emerged as a signfiicant predictor of subsequent increases in pain and reductions in physical functioning, whereas anxiety (but not depression) predicted subsequent elevations in fatigue.Conclusions: These findings suggest potentially distinct effects of depression and anxiety and imply that assessment and early treatment of both depressive and anxiety symptoms may help improve a broad range of long-term pain-related outcomes following burn inury.

Sleep onset insomnia symptoms during hospitalization for major burn injury predict chronic pain.

&NA; Both cross‐sectional studies of chronic pain and sleep deprivation experiments suggest a bi‐directional relationship between sleep and pain. Few longitudinal studies, however, have assessed whether acute insomnia following traumatic injury predicts the development of persistent pain. We sought to evaluate (1) whether in‐hospital insomnia independently predicts long‐term pain after burn injury and (2) whether in‐hospital pain predicts future insomnia symptoms. We analyzed data on 333 subjects hospitalized for major burn injury (72.7% male; mean age = 41.1 ± 14.5 years) who were participating in the multi‐site, Burn Model System project. Subjects completed measures of health, function (SF‐36), and psychological distress (Brief Symptom Inventory) while in hospital, at 6, 12, and 24 months after discharge. Participants were categorized as either having or not having sleep onset insomnia at discharge. Linear mixed effects analyses revealed that persons reporting insomnia at discharge (40.5%) had significantly decreased improvement in pain and increased pain severity during long‐term follow‐up (p < 0.001). More severe pain during the week preceding hospital discharge, time from injury, lack of college education and older age also contributed independent effects on chronic pain (p < 0.05). In a reciprocal model (N = 299), more severe pain during the week preceding discharge predicted increased rates of long‐term sleep onset insomnia. In‐hospital insomnia and pre‐burn mental health symptoms were also highly significant predictors of insomnia. This study provides support for a long‐term, prospective and reciprocal interaction between insomnia and pain. Future work should ascertain whether treatment of insomnia and pain during acute injury can prevent or minimize chronic pain.

Neuropathy after burn injury.

The purpose of this study was to evaluate the incidence of neuropathy in a consecutive cohort of patients with major burn injuries and investigate the clinical correlates for both mononeuropathy and generalized peripheral polyneuropathy. Of 572 patients examined, 64 (11%) patients had clinical evidence of mononeuropathy or peripheral neuropathy or both. Associations of mononeuropathy and peripheral neuropathy with potential risk factors were identified using logistic regression analyses. Electrical cause (odds ratio [OR] = 4.1022, P < .01), history of alcohol abuse (OR = 2.2893, P <.05), and number of days in intensive care (OR = 1.0457, P < .001) were significantly associated with mononeuropathy. The number of days in intensive care (OR = 1.0740, P < .001) and patient age (OR = 1.0543, P < .01) were significantly associated with peripheral neuropathy. This study demonstrates that neuropathy is a common complication of severe burn injury in patients who are older, critically ill, have an electrical cause, or history of alcohol abuse.

Pruritus in adult burn survivors: Postburn prevalence and risk factors associated with increased intensity

Pruritus (itching) is a common and distressing complaint after injury. The purpose of this study was to investigate self-reported postburn pruritus in a large, multisite cohort study of adult burn survivors. Descriptive statistics, general linear regression, and mixed model repeated measures analyses were employed to test statistical significance. Two cohorts of adult burn survivors were studied. Group 1 participants (n = 637) were injured from 2006 to 2010 and were followed up prospectively for 2 years from the time of injury. Prevalence and severity of pruritus were compared across multiple subgroups. Prevalence of pruritus at discharge, 6, 12, and 24 months following injury were 93, 86, 83, and 73%, respectively. Regression results established that %TBSA-burn and %TBSA-grafted were correlated to itch intensity values. Group 2 participants (n = 336) were injured 4 to 10 years before an assessment using the validated 5-D Itch Scale. Many patients (44.4%) reported itching in the area of the burn, graft, or donor site. Within this group, 76% reported itching for <6 hours/day, and 52 and 29% considered itch intensity to be mild or moderate, respectively. This study confirms that the prevalence of burn pruritus is high, initially affecting >90% and persisting for >40% of long-term burn survivors. New predictors for postburn itch were identified to include younger age, dry skin, and raised/thick scars. Characterization of the impact of postburn pruritus on leisure, vocation, and sleep are quantified for those long-term survivors suffering from postburn pruritus.

Contractures in burn injury part II: investigating joints of the hand.

This study prospectively examines the incidence and severity of hand contractures after burn injury and determines predictors of contracture development. Data were collected prospectively from 1993 to 2002 for adult burn survivors admitted to a regional burn center. Demographic and medical data were collected on each subject. Primary outcome measures include presence of contractures, number of contractures, and the severity of contractures at each of the hand joints at hospital discharge. The metacarpal-phalangeal, proximal inter-phalangeal (PIP), and distal inter-phalangeal joints of all digits and the wrist joints are included in this study. Regression analysis was performed to determine predictors of the presence, severity, and number of contractures. Of the 985 study patients, 23% demonstrated at least one hand contracture at hospital discharge. Those with a contracture averaged ten contractures per person. Most contractures were mild (48%) or moderate (41%) in severity. The wrist was the most frequently affected joint (22%). Statistically significant predictors of contracture development include concomitant medical problems, total body surface area grafted and presence of hand burn and hand grafting (P < .05). Predictors of the number of contractures include length of stay, concomitant medical problems, burn size and presence of hand burn and grafting (P < .05). Contractures of the hand are a significant complication of burn injury. Clinicians can use the contracture predictors to help target interventions for those patients most at risk of developing hand contractures. Given the functional importance of the hand in daily living, the burn care community is challenged to find new ways of preventing and treating hand contractures.

Functional and psychosocial outcomes of older adults after burn injury: Results from a multicenter database of severe burn injury

A number of factors increase the susceptibility of older adults to burn injury. The majority of studies of older adults have focused on patient and injury factors related to mortality risk. However, little is known about the long-term functional and psychological outcomes of older adults after severe burn. The purpose of this study is to examine the long-term outcomes of older adults after burn injury. The authors performed an analysis of the outcomes of older adults (age 55 years or older) enrolled in a prospective study of burn injury outcomes. Change in living situation as well as distress, functional impairment, and quality of life were examined at discharge and at 6, 12, and 24 months after hospital discharge. Mixed effects modeling was performed to compare differences across age groups and time as well as to account for missing data. A total of 737 patients aged 55 years or older were enrolled and followed in the National Institute on Disability and Rehabilitation Research burn program. Patients in all age groups had significant deficits in Short Form-36, Functional Independence Measure, and Brief Symptom Inventory scores at time of discharge. Recovery of physical and psychosocial functioning was greatest from discharge to 6 months in patients aged 55 to 74 years and greatest at 1 year for patients aged 75 years or older. This study confirms that severe burn injury significantly impacts both functional outcome and psychosocial quality of life in older adults. However, the impact seems to be age related as are recovery trajectories. Rehabilitation programs lasting up to 1 year after injury could be of tremendous benefit in helping older adults achieve maximal potential recovery.

Long-term outcomes in patients surviving large burns: the skin.

The objective of this study was to evaluate persons who have survived severe burns and to describe the long-term residual problems relating to the skin. This is a cross-sectional descriptive study that included a one-time evaluation of 98 burn survivors (18 years old or older) who survived ≥30% TBSA burns, were ≥3 years postinjury, and consented to participate. Study participants were required to undergo a physical examination conducted by the Physical Medicine and Rehabilitation physicians in addition to completing study questionnaires. Participants were predominantly male (63%) and Caucasian (69%). The average time from injury was 17 years (range 3–53 years), and the average TBSA burn was 57% (range 30–97%). Problems with hot and cold temperature, sensory loss, raised scars, and itching continued to pose problems many years after burn injury. Reports of open wounds, skin rash, painful scars, and shooting pain in scars tended to decrease over time, whereas reports of fragile burns, including cuts and tears, tended to increase over time. Findings from the physical examination of the participants include hypertrophic scars in grafted areas (92%) and in nongrafted areas (38%), decreased sensation to pin in grafted areas (71%), hyperpigmentation in grafted areas (53%), fingernail deformities (35%), and skin breakdown (32%). Individuals with large burns deserve more long-term attention. As survivors of large burns continue to face significant burn-related issues, there is a critical need for long-term follow-up both in the clinic and in research.