Characteristics of burn patients at a major burn center in Shanghai

Retrospective Evaluation of Characteristics of Patients with Burn Injuries Treated at the Largest Reference Hospital in Brazil

Burn injuries are a significant cause of morbidity and mortality in the Brazilian population. We conducted this study in a tertiary hospital in Brazil to discover the epidemiological characteristics of patients with burn injuries. We conducted a cohort review of patients admitted to the burn unit of our institute during a 5-year period. For each patient, we collected data that included age, gender, total percentage of burned body surface area, burn location, burn mode, and burn cause. We analyzed the data using the R programming language. We included a total of 496 patients in our study. The mean age of the patients was 28 ± 14.7 years. The median length of hospital stay was 2 weeks. We found a significant correlation between the total percentage of burned body surface area and the length of hospitalization (p < .001) and the length of hospitalization in the intensive care unit (p < .001). A total of 427 patients (86%) were discharged from the hospital after successful treatment. In contrast, 43 patients (8.67%) died. The mortality rate was highest in patients who had more than 70% of their total body surface area burned. The average length of hospitalization aligned with global and national statistics presented in the literature. The main causes of the burn injuries were thermal (e.g., fire, hot liquids). We found inhalation injuries present in more than one third of the patients who were hospitalized in the intensive care unit with thermal burns.

Comparison of Disease Patterns and Outcomes Between Non-Japanese and Japanese Patients at a Single Tertiary Emergency Care Center in Japan

BACKGROUND

Japan's historically low immigration rate and monolingual culture makes it a particularly interesting setting for clarifying non-national medical care. Our study objective was to examine disease patterns and outcome differences between Japanese and non-Japanese patients in a rapidly globalizing nation.

METHODS

A secondary data analysis of 325 non-Japanese and 13,370 Japanese patients requiring tertiary care or intensive-care unit or high-care unit admission to the emergency department at the Tokyo Medical and Dental University medical hospital from 2010 through 2019 was conducted. Multivariable linear and logistic regressions models were applied to examine differences in percentage of diagnosis, mortality rates, and length of stay, stratified by Glasgow Coma Scale (GCS) scores to consider the impact of language barriers. Sex and age were adjusted.

RESULTS

Non-Japanese patients had more anaphylaxis, burns, and infectious disease, but less cardiovascular diagnoses prior to adjustment. After adjustment, there were significantly more anaphylaxis (adjusted odds ratio [aOR] 2.7; 95% confidence interval [CI], 1.7-4.4) and infectious disease diagnoses (aOR 2.2; 95% CI, 1.3-3.7), and marginally more burn diagnoses (aOR 2.3; 95% CI, 0.96-5.3) than Japanese patients. Regardless of GCS scores, there were no significant differences between non-Japanese and Japanese patient length of stay for anaphylaxis, burn, and infectious disease after covariate adjustment.

CONCLUSION

There were more non-Japanese patients diagnosed with anaphylaxis, burns, and infectious disease, but no notable patient care differences for length of stay. Further prevention efforts are needed against anaphylaxis, burns, and infectious disease for non-Japanese tourists or residents.

Trends of injury mortality during the COVID-19 period in Guangdong, China: a population-based retrospective analysis

OBJECTIVE

We aimed to ascertain the trends of injury mortality during the COVID-19 period in southern China.

METHODS

We conducted a population-based retrospective analysis to compare the mortality changes of all-cause injury and transport injuries, poisoning, falls, fire/heat/hot substances, drowning, self-harm and interpersonal violence, which were further stratified by sex and age. Comparisons were made between the COVID-19 period (between January 2020 and June 2020) and control period (between January 2019 and June 2019) in Guangdong province. We used the negative binomial models to explore the associations of deaths during the COVID-19 period, according to the different sex and age strata.

RESULTS

The all-cause injury mortality in Guangdong province decreased significantly from 28.65 per 100 000 population during the control period to 23.24 per 100 000 population during COVID-19 pandemic period. Similar results were found in specific injury categories. Mortality of self-harm increased by 139.26% in the 10-14 year group during the COVID-19 period as compared with the control period. Although mortality changes in some groups were not statistically significant, some increases were noteworthy during the COVID-19 period (ie, self-harm, transport injury and falls) in the 70-79 year group. The corresponding increase in mortality rate was 16.83%, 3.32% and 4.92%, respectively.

CONCLUSION

The mortality of all-cause injury, transport injury and drowning during the COVID-19 pandemic was consistently decreased. However, the increase in mortality associated with falls, fire/heat/hot substance injury and self-harm in specific age populations warrant the targeted control and prevention measures for the population at risk.

Clinical Profile of Pediatric Burn Patients in Burn Care Unit of Halibet Hospital in 2018: Asmara, Eritrea

Background

Pediatric burn injuries result in severe and long-term complications in the developing world, especially in sub-Saharan Africa. Accurate data on burn injuries are either unavailable or incomplete in Eritrea.

Objective

The objective of this study was to define the clinical characteristics of pediatric burn injuries in the Burn Care Unit of Halibet hospital in 2018 in Asmara, Eritrea.

Methods

The study design was a retrospective cross-sectional descriptive study. The medical records of pediatric patients aged 15 years and below admitted to the Burn Care Unit of Halibet hospital between January 2018 and December 2018 were assessed.

Results

In the study period, 524 children with burn injuries were admitted to the Unit. The mean age of the study group was 4.2±3.7 years. Nearly 75% of the patients were in the age group 1–5 years. In 95.3% of the patients, scalds were the most common type of burn with burn injury occurring mostly indoor in 98.1% of cases. The average length of hospital stay was 4.6±8.4 days with a median of 1 day. In 94.8% of the patients, the body surface area involved was 1–10%, and the most body part involved was the extremity in 80.7% of the cases. Patients with body surface involvement >10% and who came from rural areas stayed longer in hospital and those with scald burns have a shorter hospital stay. Patients with body surface area involvement >10% and who came from rural areas also have more complications.

Conclusion

The most affected age group were 1–5 years old children with scalds being the most common type of burns with injury occurring mostly indoors in this population. Teaching parents about household safety, seeking early medical attention, and raising public awareness could decrease the incidence of burn injury in children.

Epidemiology and Outcome Analysis of Burns During Explosion Accident at a Major Center in Southwestern China From 2002 to 2016

Explosions always lead to serious public health, social, and economic problems. We investigated the epidemiology, outcomes, and costs of burn patients caused by explosion accident in Southwest China to explore more effective prevention and treatment strategies. This retrospective study included 497 inpatients with burns during explosion accident admitted to the Institute of Burn Research of Army Medical University from 2002 to 2016. A total of 497 cases (77.78% males) were found, accounting for 2.37% of the total burn patients. The average age was 34.38 ± 15.02 years. The most common etiology was gas explosions (51.51%). Most of the cases were caused by work-related activities. The average TBSA was 31.30 ± 28.32%. The median length of stay (LOS) was 31 days. The LOS was correlated with TBSA, full-thickness burns, older age, number of operations and outcome. The major factors determining the cost were larger TBSA, full-thickness burns, and higher cure rate. The mortality was 6.44%. Larger TBSA and older age were the most important risk factors for the mortality. This study suggested that special attention should be paid to prevent burns during explosion accident in adult males with occupational exposure. In the future, more effective and practical strategies for preventing and treating burns during explosion accident based on related risk factors should be implemented.

Epidemiology and Outcome Analysis of 470 Patients with Hand Burns: A Five-Year Retrospective Study in a Major Burn Center in Southwest China

Background

This retrospective study aimed to investigate the epidemiology of burns to the hand, including the causes, demographic data, management, and outcome in a single center in Southwest China between 2012 and 2017.

Material/Methods

A retrospective study included 470 patients with hand burns who were treated at a single hospital in Southwest China between 2012 and 2017. Demographic, injury-related, and clinical data were obtained from the clinical electronic data collection system.

Results

In 470 patients, men were more commonly admitted to hospital with hand burns (73.62%). Children under 10 years (29.57%) were the main patient group. Hospital admissions occurred in the coldest months, from December to March (55.11%). In 60.21% of cases, hand burns occurred outside the workplace. Fire (40.42%), electricity (30.85%), and hot liquids (20.21%) were the main causes of hand burns. Data from 428 patients showed that burns with a larger total body surface area and deeper burns were associated with surgery and amputation. Burn depth was a risk factor for skin grafting, and lack of burn cooling before hospital admission increased the risk of amputation. Data from 117 patients with localized burns showed that full-thickness burns and lack of cooling before admission were associated with an increased hospital stay.

Conclusions

The findings suggest that in Southwest China, prevention programs for children aged 0–9 years, injuries occurring in winter and non-workplace sites, and fire burns were imperative.

The effect of burn severity on functional capacity in patients with burn injury

BACKGROUND

Burns are traumatic injuries that result in severe tissue damage. A reduction in exercise capacity is the most common functional impairment, although it is not clear to what extent the severity of the burn injury affects the exercise capacity.

OBJECTIVE

The aim of this study was to examine the physiological responses to exercise and to evaluate exercise capacity according to burn severity.

METHODS

The study included a total of 64 burn patients, comprising 33 with moderate injuries (Total body surface area: 9.93 ± 4.73%; mean age: 37 ± 11.93 years) and 31 with major injuries (Total body surface area: 39.03 ± 10.36%; mean age: 41.09 ± 14.96 years). Heart rate, systolic blood pressure, diastolic blood pressure, double product, dyspnea level, oxygen saturation and leg fatigue before and after the shuttle walk test were recorded. Walking distances were measured after the shuttle walk test.

RESULTS

A significant difference was determined between patients with major and moderate burn injuries in respect of the cardiovascular responses to the shuttle walk test. Major burn injury patients had a significantly shorter walking distance than the moderate burn injury patients (p< 0.05).

CONCLUSIONS

Burn injury severity was seen to affect the functional capacity and cardiovascular responses to the shuttle walk test. Shuttle walk test can be preferred to evaluate moderate and major burn injury patients' functional capacity in the acute period of injury.

Burn Pain: A Systematic and Critical Review of Epidemiology, Pathophysiology, and Treatment

Objective

This review aims to examine the available literature on the epidemiology, pathophysiology, and treatment of burn-induced pain.

Methods

A search was conducted on the epidemiology of burn injury and treatment of burn pain utilizing the database Medline, and all relevant articles were systemically reviewed. In addition, a critical review was performed on the pathophysiology of burn pain and animal models of burn pain.

Results

The search on the epidemiology of burn injury yielded a total of 163 publications of interest, 72 of which fit the inclusion/exclusion criteria, with no publications providing epidemiological data on burn injury pain management outcomes. The search on the treatment of burn pain yielded a total of 213 publications, 14 of which fit the inclusion/exclusion criteria, highlighting the limited amount of evidence available on the treatment of burn-induced pain.

Conclusions

The pathophysiology of burn pain is poorly understood, with limited clinical trials available to assess the effectiveness of analgesics in burn patients. Further studies are needed to identify new pharmacological targets and treatments for the effective management of burn injury pain.

The epidemiology and prognosis of patients with massive burns: A multicenter study of 2483 cases

OBJECTIVE

Epidemiological features of massively burned patients in China remains unclear. This study was designed to investigate the epidemiological characteristics and evaluate the burn index (BI) and other risk factors associated with the prognosis of massively burned patients.

METHODS

Data of patients with ≥30% total body surface area burned admitted in 2014 were retrieved from 106 burn centers in the mainland of China. Information of epidemiological features and the outcome were collected for retrospective analysis.

RESULTS

A total of 2483 massively burned patients were included in this study, with a male-to-female ratio of 2.29:1, the mean age of 49.23±16.67 years, mean TBSA of 55.53±21.39% and the mean BI of 39.75±21.59. Scald accounted for 81.07% of the injuries in children, while flame accounted for 66.89% and 74.31% of the injuries in adults and seniors. Approximately 17.76% of the patients were admitted to the local burn center after 6h of injury, and the wound areas of 1154 (46.48%) patients were covered with folk remedies. The mortality was 9.79%, and the area under the receiver operating characteristic (ROC) curve for BI was 0.941 (95% CI, 0.929-0.954). When the value of BI was above a threshold of 29 in the 0-14 years age group, 43.5 in the 15-59 years age group and 35.5 in the 60 years or older age group, the mortality increased significantly. Multivariate logistic regression analyses showed that the odds ratio (OR) of death increased 6% with an increase in the BI of 1.0. Patients older than 60 years, the admission time longer than 6h after-injury (adjusted OR, 1.797; 95% CI, 1.179-2.740; adjusted p<0.001), and patients with a combined inhalation injury (adjusted OR, 6.649; 95% CI, 4.517-9.789; adjusted p<0.000), were at higher risk of death.

CONCLUSIONS

There are etiological characteristics of the different age groups that should be considered for prevention. BI can be a reliable index of prognosis in severely burned patients. The results of the study showed that a large BI, elderly age, delayed admission after injury and combined inhalation injury are the main risk factors for extensively burned patients.

Epidemiologic Investigation of Burn Patients in Sichuan Province, China

BACKGROUND We investigated the epidemiology of patients admitted to the Burn Center of West China Hospital during 2011-2016, to provide measures for burn prevention. MATERIAL AND METHODS We conducted a retrospective review of patients admitted to the Burn Center of West China Hospital during 2011-2016. We collected information on patient demographics, burn etiology, burn extent, place of injury, education level, and burn knowledge of patients. RESULTS A total of 1323 patients (1033 males and 290 females), mean age 35.4 years (range 10 days to 91 years), were admitted to our burn center. Among all patients, 214 were children aged 0-14 years, 998 were adults aged 15-59 years, and 111 were elderly adults over age 60 years. Scalds were the predominant cause of pediatric burns; however, flame burns were most common among adults and elderly patients. The injury location varied by age, with most burns occurring at work among adults; however, most children and elderly patients were burned at home. Educational levels were lower among adults from rural areas than those from urban areas, but both groups had little first aid knowledge. Furthermore, rural patients had received less vocational education and training than urban patients. CONCLUSIONS There has been a decrease in burn incidence in Sichuan Province. Flame injury should be a focus of attention in all age groups. Prevention programs for adults in the workplace are imperative. Burn prevention programs should continue to improve living conditions, especially for elderly people.

Qualitative research investigating the mental health care service gap in Chinese burn injury patients

BACKGROUND

Psychological disturbances are prevalent in people with burn injuries; however, psychological services are rarely accessiblepost-burn injury in China. The objective of this qualitative study was to explore and conceptualize the obstacles to delivering mental health care in burn injury patients.

METHODS

The researchers used a grounded theory research approach to interview sixteen burn injury patients, five nurses, four rehabilitation therapists, five medical doctors, and eight caregivers regarding their experiences with current health care services and barriers.

RESULTS

An explorative model was generated from the data, and the relationships among the categories were identified. People's beliefs, knowledge, socioeconomic status, cultural understanding of mental health, and social stigma appear to play key roles in the public health approach to post-burn health promotion and post-burn psychosocial interventions.

CONCLUSION

The model proposed in our research highlights the need to focus on the underlying social, economic, and cultural determinants of mental health care. The underlying social determinants of the mental health care gap that is responsible for the ill-prepared health care must be addressed.

The trend of burn mortality in Iran - A study of fire, heat and hot substance-related fatal injuries from 1990 to 2015

INTRODUCTION

Burn injuries are a major cause of preventable mortality worldwide. To implement preventive strategies, a detailed understanding of the rate and trend of fatal burn injuries is needed. The aim of this study was to determine the rate and trend of burn mortality at national and province level in Iran from 1990 to 2015.

MATERIALS AND METHODS

The data were retrieved from various sources: the Death Registration System, cemetery databases, the Demographic and Health Survey and three national population and housing censuses. ICD-10 codes were converted to Global Burden of Disease (GBD) codes for comparability. After addressing the incompleteness of death data, statistical methods such as spatio-temporal modelling and Gaussian Process Regression (GPR) were applied to estimate the levels and trend of death and cause specific mortality.

RESULTS

The number of deaths due to burning across Iran was 80,625, with a male to female ratio of 0.88, 0.94 and 1.14 in 1990, 1995 and 2015, respectively. The annual percentage change of age-standardized death rate from 1990 to 2015 was -5.42% and -4.22% in women and men, respectively. The burn-related age-standardized mortality rate decreased considerably from 5.97 in 1990 to 1.74 per 100,000 in 2015. The mortality rate due to burns was highest among those aged more than 85 years, especially in Ilam province.

CONCLUSION

This study showed a decline in burn mortality in Iran from 1990 to 2015. Continued efforts to reduce the burden of burns are needed to accelerate this progress and prevent injuries.

Epidemiology of Hand Burn in Albania 2011-2016

INTRODUCTION

Hand burns occur commonly both as part of larger burn injuries as well as isolated injuries.

AIM

To give an overview of epidemiologic features and outcome of burn hand patients who admitted to our Service. This study was performed at University Hospital Center "Mother Teresa" Tirana which is the only tertiary hospital in Albania.

MATERIAL AND METHODS

This prospective study included all patients who had combustion of the hands solely or hands accompanied with burns to other areas of the body, treated and followed up at our service during the years 2011-2016.

RESULTS

Of the 333 included burn patients, 64% were males. The median age of patients is 25.9 years. About half of patients belong to the age group 20-60 years (49.5%) and only 10.2% belong to the age of 60 years. In most of the cases (73.6%), the burn of hands is associated with the burn of the other anatomical region, mostly forearm.

CONCLUSION

The surgical treatment is used for less 30% that of patients. The undesirable results of the burn of hands are presented in the 33% of the patients. The contractures were the main unfavourable outcome of the burned hand.

Epidemiology and outcome analysis of 6325 burn patients: a five-year retrospective study in a major burn center in Southwest China

Burns are a major cause of injury worldwide. We investigated the epidemiology and outcomes of burn patients in a major burn center in southwest China between 2011 and 2015 to provide guidance for burn prevention. Of the 6,325 included burn patients, 66.8% were male and 34.7% were 0 ~ 6 years old. The incidence of burns peaked in autumn. Scald was the most common cause of burns, which was predominant in patients aged 0 ~ 6 years. The mean total body surface area (TBSA) of burns was 13.4%, and patients with burns ≤10% TBSA comprised 64.1% of all cases. Patients with full-thickness burns accounted for 40.1% of all patients and 81.0% of operated patients; these burns were primarily caused by flame (34.8%), scald (21.0%), and electricity (20.4%). Fifty-six deaths occurred (mortality 0.9%), and risk factors included full-thickness burns, larger TBSA and older age. The median length of stay was 17 days, and major risk factors included more operations, better outcomes and larger TBSA. Our data showed that closer attention should be paid to children under 6 years old, males, incidents in autumn and scald burns to prevent burn injuries. Furthermore, individualized burn prevention and treatment measures based on related risk factors should be adopted.

Clinical study of burn patients requiring admission: A single center experience at North Eastern Indira Gandhi Regional Institute of Health and Medical Sciences

Background:

Although burns are a major problem in health care, a lot of the variation in risk factors exists from region to region which if uncovered correctly could help take effective prevention measures.

Aims and Objectives:

To assess the 3-year (January 2012 to January 2015) epidemiology of burn injuries admitted to our hospital (primary objective) and to find areas of improvement in burn care (secondary objective).

Materials and Methods:

After obtaining ethical approval data were obtained from the medical record section regarding age, sex, residence, occupation, marital status, socioeconomic status, dates of admission and discharge, circumstances regarding the place, intent, cause, and source of heat. Clinical assessment was done using Wallace's “Rule of Nine” in adult and “Lund and Browder” chart in the pediatric age groups. The interrelationships between clinical and epidemiological variables with burn injury were studied.

Results:

An increasing trend in the admission rates of burn victims noted in last 3 years males (55.47%) outnumbered females (44.52%). The most common age group affected is older children, adolescents, and young adults (between 11 and 30 years). Flame (38.3%) and scald (25.3%) burns contributed to most of the injuries. Females (52.30%) are the major victim of flame burns. Electrical and chemical burns affected only the males suggesting work-related injuries. Trunk (30.8%) is the most severely affected site in all cases. Depression (6.8%) and power line workers (4.7%) seem to be important risk factors in our study. Inability to complete treatment (26.7%) was a major concern in our study.

Conclusions:

This study highlights the need for proper burn care that could be provided at the primary health-care level. The majority of burns were accidental in nature in school going children, young adults, and females. Flame and scald burns were the most common cause. Preventive measures directed toward burn safety and first aid measures may improve the outcome in burn injuries.

Epidemiologic characteristics, knowledge and risk factors of unintentional burns in rural children in Zunyi, Southwest China

We investigated the knowledge level and risk factors for pediatric unintentional burns in rural Southwest China with an aim to provide basic evidence for the prevention strategies. A stratified sampling method was used to recruit 1842 rural children from 9 schools. Self-reported burns during the past 12 months and relevant risk factors were collected by questionnaires. The burn incidence of all surveyed children was 12.7% (95% confidence interval [95% CI] 11.2–14.2%). We found that burn incidence had a trend to increase with the increasing school grade level and a trend to decrease with increasing knowledge scores on burns. The top two causes of burns were hot liquids (36.3%) and hot object (29.5%). More than 30% of children had little knowledge about preventive measures and how to give first-aid after burns. The main risk factors for burns included female gender, left-behind children by parents who were working in cities, and poor mother school education level. As the incidence of pediatric unintentional burns was high in rural southwest China, schools, families, and local public health agencies should put efforts into health education targeting burn prevention and first-aid measures after burns, particularly in “left-behind” children and those with mothers with poor education.

Effects of mobility training on severe burn patients in the BICU: A retrospective cohort study

PURPOSE

To assess the effects of mobility training on severe burn patients in the Burn Intensive Care Unit (BICU).

METHODS

This was a retrospective cohort study. Severe burn patients with equal to or more than 50% Total Body Surface Area (TBSA) burns who received early rehabilitation in the BICU were included in this study. Based on the different early rehabilitation strategies during the two periods, patients admitted to the BICU from January 2011 to April 2013 were identified as the passive training cohort (n=49) while patients admitted to the BICU from May 2013 to December 2013 were identified as the mobility training cohort (n=24). Data on length of BICU stay, length of hospital stay, length of rehabilitation in the BICU, ventilator dependent days, strict bed rest time, range of motion (ROM), the Barthel Index (BI) and the Functional Independence Measure (FIM) were collected.

RESULTS

Compared with the passive training cohort, patients in the mobility training cohort had significantly shorter length of BICU stay (p=0.002), length of hospital stay (p=0.010), strict bed rest time (p<0.001) and length of rehabilitation in the BICU (p=0.026) with improved ROM of shoulder, wrist, hip, knee and ankle joints.

CONCLUSIONS

Mobility training in the BICU was shown to be feasible and effective in achieving better outcomes than passive training for severe burn patients.

Burn injury characteristics: findings from Pakistan National Emergency Department Surveillance Study

Background

Burn injury is an important yet under-researched area in Pakistan. The objective of this study was to determine the characteristics and associated outcomes of burn injury patients presenting to major emergency departments in Pakistan.

Methods

Pakistan National Emergency Department Surveillance (Pak-NEDS) was a pilot active surveillance conducted between November 2010 and March 2011. Information related to patient demographics, mode of arrival, cause of burn injury, and outcomes was analyzed for this paper. Data were entered using Epi Info and analyzed using SPSS v.20. Ethical approval was obtained from all participating sites.

Results

There were 403 burn injury patients in Pak-NEDS, with a male to female ratio 2:1. About 48.9% of the burn injury patients (n = 199) were between 10 - 29 years of age. There was no statistically significant difference between unintentional and intentional burn injury patients except for body part injured (p-value 0.004) and ED disposition (p-value 0.025). Among 21 patients who died, most were between 40 - 49 years of age (61.9%) and suffered from fire burns (81%).

Conclusion

Burn injuries are a burden on emergency rooms in Pakistan. We were able to demonstrate the significant burden of burn injuries that is not addressed by specialized burn centers.

Epidemiology of burns in the United Arab Emirates: lessons for prevention

PURPOSE

To study mechanism, risk factors and outcome of hospitalized burns so as to give recommendations for prevention.

METHODS

Burn patients admitted to Al Ain hospital for more than 24h or who died after arrival were studied over 4 years. Demographics, burn type, location and time of injury, total body burned surface area (TBSA), body region, hospital and ICU stay and outcome were analyzed.

RESULTS

203 patients were studied, 69% were males and 25% were children under 5 years old. The most common location for burn was home. Women were burned more at home (p<0.0001). 28% of patients were injured at work with more men (p<0.0001) and non-UAE nationals (p<0.01). Scalds from water, tea were the major hazard at home, while majority of burns at work were from gas and flame. Burns caused by gas and flame had larger TBSA and longer ICU stay. Six (3%) patients died and nine (4%) were transferred to the specialized burn center.

CONCLUSIONS

Safety education for caregivers and close supervision of young children is important to reduce pediatric burns. Occupational safety education of young men could prevent burns caused by gas and flame.

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

Work-related burn injuries contribute to a quarter of all burns in the USA. In 2009, the provincial Workplace Safety and Insurance Board reported 64,824 work-related injuries that resulted in time lost, 1188 injuries (2%) were a result of burns. There were two previous studies performed at a regional burn centre (1984-1990 and 1998-2000) that examined incidence and characteristics of work-related burns. There was no significant change between these two groups. The purpose of this study was to identify the recent pattern of work-related burns from 2001 to 2010 and to compare it to the previous studies. During the study period, 1427 patients were admitted for an acute injury to the regional burn centre. Of these, 330 were due to a work-related incident (23%). The mean age of patients was 40.5±11.9 years, 95% were male. The mean total body surface area burn was 11.9±16.2%. The most common mechanism of injury was flame (32.7%) followed by electrical (27%) and scald (19.7%), inhalation injury was present in 4.8% of patients and the mortality was 1.8%. Our study shows a significant decrease in the incidence in work-related burns treated at the regional burn centre (23.1% vs. 28.2% vs. 30.2%, p<0.01), flame burns have now become the leading cause of injury, there was a significant reduction in inhalation injury (4.8% vs. 23% vs. 14.8%, p<0.00001), and mortality over time (1.8% vs. 4% vs. 6.7% p=0.02). These findings strongly suggest a change in the cause of work-related burns, improvement in burn care, and that prevention strategies may have been more effective.

The characteristics of elderly burns in Shanghai

OBJECTIVE

This study aims to analyse the epidemiologic characteristics of severe burn in the elderly in Shanghai and to discusses a possible prevention programme for this population.

METHODS

A retrospective review of all medical records of elderly patients (aged 60 and older) admitted with acute burns to the Burn Center of the RuiJin Hospital between January 1996 and December 2004 was carried out. Patient demographics, etiology of burn, mechanism of injury, burn extent, anatomical areas burned, number of operations, and outcomes were reviewed.

RESULTS

A total of 201 (5.8% of hospitalised patients) elderly patients (mean age (+/-SD) of 69.3+/-7.1 years (range 60-90 years)) were admitted. Majority of the patients were men (62.2%) and the most common etiologies were flames (52.7%) and scalds (39.8%). The majority of burns occurred at home (73.6%), followed by burns at workplace (15.9%) and public areas (10.5%). The median total body area burned was 11.7% (range 0-84%), and the majority of burns were classified as mild (60.2%) and moderate (32.8%). Predominant anatomical areas involved were the legs (76.1%), arms (67.2%), head and neck (49.8%) and hands (49.3%). The most common pre-injury conditions were cardiovascular diseases (25.9%), diabetes (8.5%) and neurological diseases (6%). Eighty-seven patients (43.3%) required surgical treatment. The most common complications were multiple organ failure (2%), pneumonia (1%) and wound infection (1%). Sixteen patients (8%) died: half of them in hospital, and the rest at home. There was a significant correlation between post-injury complications and death (r=0.69, p<0.001). The mean total hospitalisation cost was yen 22993.09 (US$ 3381.34).

CONCLUSIONS

Domestic and workplace burns with devastating consequences are very common in the elderly population in Shanghai. Burn prevention education and implementation of safety measures at home and at workplace would help reduce such incidences.

Thermal injury induces impaired function in polymorphonuclear neutrophil granulocytes and reduced control of burn wound infection

Severe thermal injury induces immunosuppression, involving all parts of the immune system, especially when large fractions of the total body surface area are affected. An animal model was established to characterize the burn-induced immunosuppression. In our novel mouse model a 6% third-degree burn injury was induced in mice with a hot-air blower. The third-degree burn was confirmed histologically. The mice were allocated into five groups: control, shave, burn, infection and burn infection group. At 48 h, a decline in the concentration of peripheral blood leucocytes was observed in the group of mice with burn wound. The reduction was ascribed to the decline in concentration of polymorphonuclear neutrophil leucocytes and monocytes. When infecting the skin with Pseudomonas aeruginosa, a dissemination of bacteria was observed only in the burn wound group. Histological characterization of the skin showed a more polymorphonuclear neutrophil granulocytes (PMNs)-dominated inflammation in the group of mice with infected burn wound compared with the with burn wound group. In contrast, a higher degree of inflammation was observed in the burn wound group compared with the group of mice with infected burn wound. Furthermore, the oxidative burst and the phagocytic capacity of the PMNs were reduced in the group of mice with burn wound. Using this novel mouse model of thermal injury a decline of peripheral leucocytes was observed, whereas the increased local inflammatory response at the site of infection showed reduced capacity to contain and eliminate the infection.