Work-related burn injuries in Ontario, Canada: A follow-up 10-year retrospective study

Routinely collected burn clinical data in Canada: Determining the knowledge gap

Unlike other developed countries that hold national burn registries to monitor burn injury and care, Canada relies on single-centre secondary datasets and administrative databases as surveillance mechanisms. The objective of this study was to determine the knowledge gap faced in Canada for not having a dedicated burn registry. A comprehensive scoping review was conducted to identify the burn literature that has arisen from secondary datasets in Canada. Literature of all study designs was included with the exception of case reports and cases series. Once data extraction was concluded, a thematic framework was constructed based on the information that arose from nations that hold national burn registries. Eighty-eight studies were included. Twelve studies arose from national datasets, and 18 from provincial databases, most of which were from Ontario and British Columbia. Only seven studies were conducted using a combination of Canadian units' single-centre datasets. The majority of included studies (58%) resulted from non-collaborative use of single-centre secondary datasets. Research efforts were predominantly conducted by burn units in Ontario, British Columbia, Manitoba and Alberta. A significant number of the included studies were outdated and several provinces/territories had no published burn data whatsoever. Efforts should be made towards the development of systems to surveil burn injury and care in Canada. This study supports the development of a nation-wide burn registry to bridge this knowledge gap.

Computational investigation of a 3D-printed skin substitute with orthotropy in mechanical property

As a promising treatment for third-degree burns, grafting with bioengineering skin substitutes shows a capability to overcome the deficiency of donor skin. Similar mechanical properties with human skin are required for employed skin substitutes to avoid secondary damage to patients. Given the representativeness of orthotropy in mechanical properties, there is a need for developing orthotropic skin substitutes. This paper presents computational investigation as well as structural design for the fabrication of orthotropic skin substitutes. A finite element method (FEM) based mechanics simulation model for analyzing the stress field in the skin substitute was developed, by which the stress distribution in mimetic structures of the epidermis and dermis can be acquired. Moreover, the equation of Young's modulus was deduced based on the simulation result, which expressed the mechanical property of designed skin substitutes. Furthermore, several structures of skin substitutes were proposed and their calculated Young's modulus ranged from 21.87 kPa to 213.32 kPa, which was similar to the human skin. Ultimately, uniaxial tensile tests were performed for three types of 3D-printed orthotropic skin substitutes, which validates the feasibility to regulate Young's modulus by regulating the structure of fabricated skin substitutes.

Epidemiology of work-related burn injuries: A ten-year retrospective study of 429 patients at a referral burn centre in the north of Iran

Work-related burns can have a destructive impact; however, knowledge of the epidemiology of work-related burn injuries in Iran is limited. This study aimed to describe epidemiological characteristics of work-related burn injuries in a burn centre in the north of Iran. This study was a retrospective single-centre study of the medical records of work-related burns between 2011 and 2020. Data collection was done using the hospital information system (HIS). The data were analysed by using descriptive statistical methods and SPSS 24.0 software. Of the 9220 cases treated in the burn centre, 429 (4.65%) had work-related burns. There was an increasing trend of work-related burns during the ten years. The mean age of patients was 37.53 (SD = 13.72). Most patients were male (n = 377, 87.9%), with a male-to-female ratio of 7.25/1. The mean total body surface area burn was 23.39% (SD = 20.03). Most work-related burns occurred in the summer season (46.9%, n = 201), and the upper limb was the most common anatomical site of burns (n = 123, 28.7%). The most common mechanism of injury was fire & flames (266, 62.0%). Inhalation injury was observed in 52 (12.1%) patients, and mechanical ventilation was undertaken in 71 (16.6%) patients. The mean length of stay in the hospital was 10.38 (SD = 10.37) days, and the overall mortality rate was 11.2%. The most common activities associated with burns at the time of the incidents were food preparation and serving related (108, 25.2%), followed by welders (n = 71, 16.6%) and electricians (n = 61, 14.2%). This research is the basis for evaluating work-related burns and identifying the causes of these injuries to develop education and prevention programmes, especially for young male workers.

Impact of surgical first excision delay on function for heat-press hand injury by the Quick-DASH questionnaire: Series over 20 years

BACKGROUND

Heat-press hand burn leads to complex and severe lesions, with potentiation of thermal burn by the crushing mechanism. Management remains poorly codified, and the surgical strategies found in the literature remain contradictory. The objective of our study is to report our experience and define the first burn excision delay through functional evaluation with a Quick-DASH questionnaire.

METHODS

We carried out a retrospective study of 20 burned hands by heat-press managed in our burn unit between 2002 and 2021. Following data were collected, at least one year after the accident: Quick-DASH score, which was our primary endpoint, injury assessment according to the Tajima's classification, overall surgical management, and impact on their professional activity. A descriptive statistical analysis of these data was performed followed by a univariate analysis to assess the correlation between delay to first surgical excision and the long-term functional result (Quick-DASH score and time before return to work).

RESULTS

Burns were Tajima grade 1 (supra-fascial dermal burn) in 35 % of cases, grade 2 (exposure of subfascial structures) in 45 % and grade 3 (bone or joint exposure) in 20 %. There were no cases of bone fractures. We received 18 out of 20 questionnaires with no significant differences between those who send back or not. The median QuickDash score was 7.15 [IQR 0-52.25]. The first surgical excision was performed with a median of 8 days after the accident [min: 0; max: 20]. The median time before return to work was 24 weeks [IQR 17-42.25]. Only 11 patients (55 %) were able to go on the initial employment. Spearman test found a strong trend for a negative correlation between the time to the first excision and the QuickDash score (ρ = -0.46; r2 = 0.087; p = 0.053).

CONCLUSION

According to observations made in our unit and in agreement with Tajima, who first described heat-press injury, the first surgical excision should be performed approximately one week after the accident. Subsequent excisions may be performed to reassess the lesions and complete the debridement, with reconstruction to follow. Multidisciplinary management is still necessary, including early and intensive physiotherapy, psychological support, and assessment by an occupational physician.

Investigation Of Common Burn Mechanisms, And Training And Safety Conditions In The Workplace

Workplace burn injuries are associated with significant physical, psychological, and social challenges. This study was designed and conducted to investigate the common burn mechanisms, and training and safety conditions in the workplace. The study is a cross-sectional study that was performed on patients admitted to Shahid Motahari University Hospital in Tehran from August 2016 to October 2017. Samples consisted of patients who suffered burns at work and were able to answer research questions. Data were recorded in tablets by electronic patient registration forms.Of the total burn patients under study, 14.28% were injured in the workplace. The burns were mainly thermal, followed by electrical, chemical, and inhalation burns. 38.2% of patients were not trained for safety measures at work and 27.8% of patients were not given personal protective equipment. 39.0% of workspaces were not safe against the risk of burns. Failure of devices and equipment was the cause of 28.8% of the accidents. Electrical damage, the ignition of flammable materials, gas explosions and contact with molten materials were the most common mechanisms in the occurrence of workplace burns. The lack of awareness by workers, lack of attention to the use of safety equipment at work, and the presence of damaged equipment are the main causes of burn accidents in the workplace. Therefore, the implementation of codified safety training and monitoring the observance of safety measures by workers and employers are recommended.

Comparison of work- and non-work-related lower extremity burn injuries: a retrospective analysis

Lower extremity burn injuries are among the most affected anatomical regions in hospitalized burn patients. Our objective was to compare burn patients with work-related isolated lower extremity burn injuries (w-ILEBI) and patients with non-work-related isolated lower extremity burn injuries (nw-ILEBI). Sixty-four (15.7%) of 407 patients (16-92 years) were in the w-ILEBI cohort. The most extensive burn wounds were among patients in the fire-flame group with a median total body surface area percent (%TBSA) of 27.0 (IQR= 11.0-45.0%). While 50 (76.9%) patients in the electrical group had full-thickness burns, 99 (60%) of the cases in the scald group had superficial partial-thickness burns. Blood and wound sample cultures were positive in 42 (29.4%) patients in the fire-flame group. Approximately one-third of patients in the fire-flame/electrical group required escharotomy/fasciotomy procedures, only one (0.6%) case in the scald group, and none in the chemical/contact groups. Thirty-three (51%) of the patients in the electrical group underwent skin grafting, but fourteen (21.5%) required amputations. The highest mortality was detected in 27 (18.9%) patients in the fire-flame group. This study revealed several differences in clinical characteristics of isolated lower extremity burn injuries (ILEBI): burn mechanism and depth, %TBSA, infection, surgery requirements, laterality, and mortality. Within the scope of occupational health and safety measures, protective clothing and increased workplace and safety training for employers/employees should be implemented.

Prevalence and predictors of scar contracture-associated re-hospitalisation among burn inpatients in China

Scar contracture, a common destructive complication causing increased re-hospitalisation rate of burn survivors and aggravated burden on the medical system, may be more seriously in Chinese population because of their higher susceptibility to scar formation. This study aims to evaluate the prevalence and predictors of scar contracture-associated re-hospitalisation among Chinese burn inpatients. This cross-sectional study screened burn inpatients hospitalised during 2013 to 2018 through the Hospital Quality Monitoring System database, among whom re-hospitalised for scar contracture were identified. Variables including sex, age, occupations, burn area, burn site and surgical treatment were analysed. Potential predictors of scar contracture-associated re-hospitalisation among burn inpatients were determined by univariate regression analyses. Of the 220,642 burn inpatients, 2146 (0.97%) were re-hospitalised for scar contracture. The re-hospitalised inpatients were predominantly men and blue-collar workers, showing younger median age at the time of burns, larger burn sizes, and higher percentage of surgical treatment compared other burn inpatients. Significant univariate predictors of scar contracture-associated re-hospitalisation included male sex, age < 50 years, blue-collar work, ≥ 40% total body superficial area burned, inhalation injured, and surgical treatment. Scar contracture is an intractable complication and a significant factor to increase re-hospitalisation rate among Chinese burn inpatients.

Work-Related Burn Injuries in a Tertiary Care Burn Center, 2013 to 2018

The features of work-related burn (WRB) injuries are not well defined in the literature and they vary depending on geographical location. We wanted to describe these characteristics among patients treated in the UNC Burn Center to evaluate the potential impact of commonly accepted prevention efforts. Adults of working age, admitted between January 1, 2013, and December 31, 2018, were identified using our Burn Center Registry. Demographic data, characteristics of injury, course of treatment, and patients' outcomes were described. Differences between work-related and non-work-related injuries were evaluated using the Chi-square test and Student t-test where appropriate. Three thousand five hundred and forty-five patients were included. WRB cases constituted 18% of the study population, and this proportion remained relatively stable during the study timeframe. Young white males were the majority of this group. When compared with non-WRB patients, they were characterized by fewer co-morbidities, decreased TBSA burns, decreased risk of inhalation injury, shorter time of intensive care treatment, shorter lengths of hospital stay, and lower treatment cost. In contrast to non-WRB, among which flame injuries were the main reason for admission, work-related patients most often suffered scald burns. They also had a dramatically increased proportion of chemical and electrical burns, making the latter the most common cause of death in that group. WRB are characterized by a characteristic patient profile, burn etiologies, and outcomes. Learning specific patterns at this group may contribute to optimize work safety regulations and medical interventions.

The Relationship Between Income and Burn Incidence in Winnipeg, Manitoba, Canada: A Population Health Study

Burns continue to be a common cause of morbidity around the world, and socioeconomic status has been linked to high-burn risk in developed and developing countries. The purpose of this study was to define in Winnipeg, Manitoba, Canada: 1) demographics of adult patients with severe burns; 2) the relationship between household income and burn incidence; and 3) specific geographic areas that may benefit from targeted burn prevention strategies. We conducted a retrospective study of adult (>18 years) patients in Winnipeg, with burns severe enough to require at least 1 day of hospitalization between 2006 and 2016. Area-level median household income data at two geographic levels were collected from 2011 Census based on patient postal codes. Of 207 patients that met study criteria, 156 (75.4%) were male. Mean age was 44.5 ± 16.9 years, and the most common cause of burns was fire/flame (52.2%). The analysis of income data revealed that lower area-level income groups had a higher incidence of burns, with the lowest income quintile group having 5.4 times higher incidence than highest income quintile group. Spatial analysis software was used to map the incidence rates, and clusters of high-risk burns were identified in and around the city center region. Overall, our study showed an inverse relationship between area-level income and burn injury incidence. The identification and mapping of high incidence hotspots will allow policy makers to target groups who will benefit most from burn prevention strategies.

Assessment of quality-of-life in patients with face-and-neck burns: The Burn-Specific Health Scale for Face and Neck (BSHS-FN)

INTRODUCTION

Burns to the cephalic extremities are particularly implicated in problems of self-image and alterations to personal social relations. The aim of this study was to objectively assess the quality-of-life (QoL) of patients suffering from face-and-neck burns through our newly created scale: The Burn-Specific Health Scale for Face and Neck (BSHS-FN).

METHODS

After constructing the BSHS-FN, we compared QoL of patients with or without face-and-neck burns. SF-36, the French version of the BSHS-B (Burn Specific Health Scale-Brief), and the BSHS-FN were administrated to 53 patients divided into two groups: GB group (general burns, 26 patients) and FN group (face-neck burns, 27 patients).

RESULTS

QoL evaluated using the SF-36 had a higher average total score in GB patients compared to FN patients, but there were no significant difference between the two groups (54.3±18.5 vs. 47.0±17.3, respectively, p=0.11). In contrast, in BSHS-B the total score was significantly different between the two groups with a higher score recorded for the GB group (71.9±13.4 [median: 72.8] in the GB group vs. 62.2±14.4 [median: 64.4] in the FN group). In percentage terms, total score of BSHS-FN for GB group was 79.1±10.1, while total score for FN group was 53.6±13.1 (p<0.001), with the highest score for the Face and Neck domain in GB group (99.7±1.1, p<0.001) CONCLUSION: The BSHS-FN seemed to be more appropriate to assess QoL for FN burn patients. This study supports its application in routine clinical practice and in international studies.

Work-Related Burn Injuries Hospitalized in US Burn Centers: 2002 to 2011

OBJECTIVE

To develop a comprehensive definition to identify work-related burns in the National Burn Repository (NBR) based on multiple fields and describes injuries by occupation.

METHODS

The NBR, which is an inpatient dataset, was used to compare type and severity of burn injuries by occupation.

RESULTS

Using the definition developed for this analysis, 22,969 burn injuries were identified as work-related. In contrast, the single work-related field intended to capture occupational injuries only captured 4696 cases. The highest numbers of burns were observed in construction/extraction, food preparation, and durable goods production occupations. Occupations with a mean total body surface area (TBSA) burned greater than 10% include transportation and material-moving, architecture and engineering, and arts/design/entertainment/sports/media occupations.

CONCLUSIONS

The NBR dataset should be further utilized for occupational burn injury investigations and multiple fields should be considered for case ascertainment.

Ten-year epidemiology of chemical burns in western Zhejiang Province, China

BACKGROUND

Chemical burns occur frequently in western Zhejiang Province. This study documents the epidemiology of chemical burns in the region using burn data from a local specialized hospital. Results from this analysis will assist in the planning of prevention strategies for high-risk occupations and groups.

METHODS

A 10-year retrospective analysis was conducted for all patients with chemical burns admitted to the Department of Burn and Plastic Surgery from January 2004 to December 2013. Information obtained for each patient included demographics (gender, age, occupation and education), location of the burn, cause of the burn, and categories of chemicals. Data regarding the season of admittance, prehospital treatment, wound site/size (area, region, and depth), accompanying injuries, operations, length of hospital stay and mortality were also assessed.

RESULTS

A total of 690 patients (619 males, 71 females; average age: 30.6±12.4 years) were admitted to the department for chemical burns. Over the 10-year period, the incidence of chemical burns showed an increasing tendency. Chemical burns occurred most frequently in patients aged 20-59 years (94.79%). Most of the chemical burns were work-related, primarily in private enterprises (47.97%) and state-owned enterprises (24.93%). Operations (68.99%) and machine problems (17.26%) were the main causes of chemical burns in the workplace. With regard to burns caused by chemicals, most were caused by acids (72.01%), with hydrofluoric acid and sulphuric acid causing 51.45%. Most chemical burns occurred in the summer and autumn seasons (61.02%). The burn size was <10% of the total body surface area (TBSA) for 445 patients (64.49%), while only 26 patients (3.76%) had burns covering >40% TBSA. The most common burn sites were the upper extremities (31.57%), lower extremities (19.86%), and head and neck (28.83%). Most patients (581 (84.20%)) received water washing treatment on site immediately after exposure. The most common accompanying injuries included inhalation injury, ocular burns and digestive tract injury. The average hospital stay was 17.0±23.1 days (range 1-333 days). Surgery was performed in 146 patients (21.16%), and the overall mortality rate was 0.58%.

CONCLUSIONS

Chemical burns are preventable. The high morbidity of chemical burns in western Zhejiang Province is related to the industrial structure of the area. Governmental management in the fields of production, transportation, and utilization of chemicals could be improved. Workplaces have the responsibility to provide safe work environments and equipment, as well as occupational education and safety training for high-risk work groups.

RISK PERCEPTION OF WORK-RELATED BURN INJURIES FROM THE WORKERS PERSPECTIVE

This is a qualitative study with the aim to understand the perspective of workers about the risk of work-related burn injuries. The content obtained through semi-structured interviews was submitted to content analysis, guided by the Neuman Systems Model. Participants were six workers who suffered burns and were treated at a specialized center in southern Brazil. Intrapersonal stressors were: male gender, young adults, and Caucasians; previous accidents and denial of risks in handling the instruments. The intense pace of activities, excessive workload, stress, and submission to the determinations of managers, on the other hand, emerged as interpersonal stressors. As extrapersonal stressors, precarious employment status, risks inherent in the tasks, old equipment, and handling instruments before the accident were mentioned. More research and follow-up by health professionals are necessary in order to prevent future accidents at work.

The year in burns 2013

Approximately 3415 research articles were published with burns in the title, abstract, and/or keyword in 2013. We have continued to see an increase in this number; the following reviews articles selected from these by the Editor of one of the major journals (Burns) and colleagues that in their opinion are most likely to have effects on burn care treatment and understanding. As we have done before, articles were found and divided into the following topic areas: epidemiology of injury and burn prevention, wound and scar characterization, acute care and critical care, inhalation injury, infection, psychological considerations, pain and itching management, rehabilitation and long-term outcomes, and burn reconstruction. The articles are mentioned briefly with notes from the authors; readers are referred to the full papers for details.

The burn registry program in Iran - First report

Burn injury is still a major problem in Iran, resulting in many reports which are usually dispersed, uncoordinated and probably unreliable. We created a burn registry comprised of a data entry program with 222 variables for each admitted burn patient. This program was established in August 2010 at the Iran University of Medical Sciences, Motahari Burn Hospital. We had 14,277 burn patients from August 2010 to August 2011, 877 of whom were admitted to the hospital. Of the patients, 65.9% were male and 34.1% were female. The age was 28.85 years (SD = 19.77). The most prevalent cause of burn was flame 78.5% (pipe propane gas 57.2; kerosene 19.9%). The mean total body surface area (TBSA) involvement was 23%. A total of 77.8% of patients were discharged with partial recovery, while mortality was 8.9%. The mean hospital stay was 14.63 days (SD =11.07). The program is designed to help understand the scope of burn injury in Iran, providing information on patients, etiology, and course of treatment. It also highlights differences between various parts of the country in terms of the causes and frequency of burn injuries. Moreover, the burn registry provides a basis for further research and surveys for treatment and preventive programs. Our results showed that, although Emergency Medical Services (EMS) staff are highly capable and well-trained, their coverage seems to be less than 50% and needs to be increased. Marriage status was shown to have no influence on the occurrence of burns, and among our patients, 57.0 % were poorly educated.