Thermal injury in patients with seizure disorders: an opportunity for prevention

Management of Heat-Related Illness and Injury in the ICU: A Concise Definitive Review

OBJECTIVES

The increasing frequency of extreme heat events has led to a growing number of heat-related injuries and illnesses in ICUs. The objective of this review was to summarize and critically appraise evidence for the management of heat-related illnesses and injuries for critical care multiprofessionals.

DATA SOURCES

Ovid Medline, Embase, Cochrane Clinical Trials Register, Cumulative Index to Nursing and Allied Health Literature, and ClinicalTrials.gov databases were searched from inception through August 2023 for studies reporting on heat-related injury and illness in the setting of the ICU.

STUDY SELECTION

English-language systematic reviews, narrative reviews, meta-analyses, randomized clinical trials, and observational studies were prioritized for review. Bibliographies from retrieved articles were scanned for articles that may have been missed.

DATA EXTRACTION

Data regarding study methodology, patient population, management strategy, and clinical outcomes were qualitatively assessed.

DATA SYNTHESIS

Several risk factors and prognostic indicators for patients diagnosed with heat-related illness and injury have been identified and reported in the literature. Effective management of these patients has included various cooling methods and fluid replenishment. Drug therapy is not effective. Multiple organ dysfunction, neurologic injury, and disseminated intravascular coagulation are common complications of heat stroke and must be managed accordingly. Burn injury from contact with hot surfaces or pavement can occur, requiring careful evaluation and possible excision and grafting in severe cases.

CONCLUSIONS

The prevalence of heat-related illness and injury is increasing, and rapid initiation of appropriate therapies is necessary to optimize outcomes. Additional research is needed to identify effective methods and strategies to achieve rapid cooling, the role of immunomodulators and anticoagulant medications, the use of biomarkers to identify organ failure, and the role of artificial intelligence and precision medicine.

The homeless, seizures, and epilepsy: a review

This review aims to estimate the prevalence of seizures and epilepsy among homeless people in current literature as well as understand the main adversities that this group withstands. We conducted a search for "epilep*", "seizur*", and "homeles*" in titles and abstracts of articles in PubMed. Overall, 25 articles met the final inclusion criteria and warranted analyses. This study suggests that the prevalence of epilepsy in the homeless population is between 2 and 30%, whereas the prevalence of homelessness in people with epilepsy is between 2 and 4%. Every study included in this review corroborates the increased prevalence of seizures and epilepsy among the homeless, which puts them at risk for worse outcomes related to this condition and numerous associated comorbidities. Further evidence is needed to clarify the distinction of primary and secondary seizures in this group, which shows a high rate of confounding factors for seizures like substance abuse or withdrawal and head injury, and to decrease the burden of epilepsy and homelessness in an already resource-deficient community.

Pavement Burns in New Mexico: Our Experiences, Treatments, and Outcomes

INTRODUCTION

This study focused on patients treated at the University of New Mexico Burn Center who sustained burn injuries from contact with environmentally heated pavement. We report on our patient demographics and outcomes as well as describe our institutional staged surgical approach to treatment. We provide a comparison of our results with other case reports as well as other findings.

METHODS

A retrospective review of patients admitted to the University of New Mexico Burn Center with injuries suffered from contact with hot pavement was performed. Patients were stratified on the presence or absence of altered mental status (AMS) and additional inciting factors. A total of 6 patients were reviewed from 2018 to 2019. We looked at patient demographics and comorbidities, time of contact with hot pavement, inciting factors, total body surface area (TBSA) burned, location of areas burned, depth of burn injury at the time of presentation and at the time of initial operative debridement, percentage of autograft take, complications, length of stay (LOS), and final disposition.

RESULTS

The patients in our study had a mean TBSA of 9.82% corresponding to pressure points of the body. All patients had nearly 100% conversion to full-thickness burns at the time of initial operative debridement. With staged excision and split-thickness autografting, our patients had nearly 100% take of their skin grafts with minimal graft loss or related complications. At the time of presentation, 100% of patients had AMS and 66% (4/6) had a drug or alcohol related inciting event. Finally, the average LOS was 19.5 days in comparison to 7-9-days for uncomplicated burns of equivalent size at our burn centre.

CONCLUSION

Despite an initial appearance of a partial-thickness burn, pavement burns had a high propensity to convert to full-thickness burns. Patients with AMS contributed to our patient population being found with pavement burns. Patients with pavement burns had a distinct anatomic pattern corresponding to pressure points of the body which were often areas at high risk for skin and wound breakdown and complications. Staged excision and split-thickness autografting in the treatment of pavement burns yielded excellent results. Finally, our data showed that providers must be prepared for an extended LOS for patients with pavement burns.

Missed Diagnosis of Epilepsy-Associated Scald Burns: Two Cases Initially Diagnosed as Bullous Dermatosis

Thermal burns can occur during seizure. This diagnosis can be difficult in case of atypical lesions, even more if the epilepsy is unknown and in case of seizures with loss of consciousness and/or an unwitnessed epileptic attack. We report two cases of cutaneous bullous lesions initially misdiagnosed as severe acute cutaneous adverse reactions (generalized bullous fixed drug eruption and Stevens-Johnson syndrome). In the two cases, the clinical aspect, necrotic evolution, and absence of obvious attributable medication allowed to revert to the diagnosis of burns due to boiling water revealing previously unknown epilepsy. For both, surgical management with skin graft was performed, and antiepileptic treatment was introduced. Facing unexplained burns, occult epilepsy should be investigated. Questioning of patient and relatives is crucial.

Pavement Burns Treated at a Desert Burn Center: Analysis of Mechanisms and Outcomes

Burns from contact with hot pavement are a common mechanism treated at burn centers located in desert climates. Previous work has shown increased risk of pavement burns as ambient temperatures rise above 95 degrees. In direct sunlight, pavement absorbs radiant energy causing the temperature to rise high enough to cause second-degree burns in seconds. The goal of this study is to review the mechanisms and outcomes of patients suffering pavement burns and to compare patients who presented with hyperthermia to their normothermia counterparts. A retrospective chart review was performed on pavement burns at an ABA-verified Burn Center for 5 years from 2014 to 2018. A total of 195 patients were identified. It was found that 50.5% of admitted pavement burn patients required burn excision and 35.9% required split-thickness skin grafting. The leading causes of pavement burn admissions were found down by EMS and walking on pavement at 21.6% each, followed by mechanical falls at 15.1%. We found that patients with recorded hyperthermia had statistically significant increase in 30-day hospital mortality, intensive care unit days, surgical procedures, and %TBSA. Data provided from this study can be used for a public health initiative to help patients who may be at risk of acquiring pavement burns. The data may also be helpful for clinicians gaining information about the management, mechanism, and outcomes of pavement burn patients.

"Streets of Fire" revisited: contact burns

Background

Pavement-street contact burns are rare. This study compared recent contact burns to those published in “Pavement temperature and burns: Streets of Fire” in 1995. The hypothesis was that there were a significantly increased number of pavement-street burns, as a result of increased ambient temperatures, and that motor vehicle crash (MVC) contact burns were less severe than pavements-street burns.

Methods

This was a retrospective burn center registry study of naturally heated surface contact burns during May to September from 2016 to 2018. Statistical analyses were performed with one-way analysis of variance (ANOVA) and Maximum Likelihood chi-squared for age, percent of total burn surface area (% TBSA), treatment, hospitalization, comorbidities, hospital charges, mortality, ambient, and surface temperatures (pavement, asphalt, rocks).

Results

In the 1995 study, median ambient temperatures were 106 (range 100–113) °F compared to the 108 (range 86–119) °F highest noon temperature in the current study. No ambient temperature differences were recorded on days with pavement burn admissions compared to days without these admissions. There were 225 pavement, 27 MVC, 15 road rash, and 103 other contact burns. The major injuries in the pavement group were due to being “down” (unknown reason), falls, and barefoot. Compared to the others, the pavement group was older, 56+ years, p < 0.001, and had smaller burns but similar length of stay. Fifty percent of the 225 pavement group patients with full-thickness burns required skin grafts. There were 13 (6%) fatalities in the pavement group vs 1 (4%) in the MVC group, p = 0.01. Fatalities were secondary to sepsis, shock, cardiac, respiratory, or kidney complications. Compared to survivors, the non-survivors had a significantly higher % TBSA (10% vs 4%), p = 0.01, and lower Glasgow Coma Scores (10 vs 15), p = 0.002.

Conclusion

There was a median 2 °F increase in ambient temperature since 1995. The increase in pavement burn admissions was multi-factorial: higher temperatures, population, and the number of older patients, with increased metropolis expansion, outreach, and urban heat indices. Pavement group was similar to the MVC group except for significantly older age and increased mortality. Morbidity associated with age contributed to increased mortality.

The Effect of Pre-existing Seizure Disorders on Mortality and Hospital Length of Stay Following Burn Injury

Patients with a seizure disorder have a higher incidence of burn injury; however, there are limited studies that examine the association between pre-existing seizure disorders (PSD) and burn outcomes. This is a retrospective study of admitted burn patients. Variables analyzed include patient demographics, clinical characteristics, associated PSD, hospital length of stay (LOS), and mortality. Multivariate logistic regression was performed to analyze the impact of PSD on burn mortality and LOS. Seven thousand six hundred and forty patients met the inclusion criteria and 1.31% (n = 100) patients had a PSD. There was no difference in mortality rate between patients with or without PSD (odds ratio [OR] = 2.28, 95% confidence interval [CI] = 0.87 to 5.93). Multivariate logistic regression showed that patients with PSD had significantly increased odds of longer hospital LOS (OR = 2.85, 95% CI = 1.73 to 4.67). Seizure disorder management is mandatory in reducing burn injury and decreasing the costs associated with increased hospital LOS.

Risk Factors for Healthcare-Associated Infections in Adult Burn Patients

OBJECTIVE Burn patients are particularly vulnerable to infection, and an estimated half of all burn deaths are due to infections. This study explored risk factors for healthcare-associated infections (HAIs) in adult burn patients. DESIGN Retrospective cohort study. SETTING Tertiary-care burn center. PATIENTS Adults (≥18 years old) admitted with burn injury for at least 2 days between 2004 and 2013. METHODS HAIs were determined in real-time by infection preventionists using Centers for Disease Control and Prevention criteria. Multivariable Cox proportional hazards regression was used to estimate the direct effect of each risk factor on time to HAI, with inverse probability of censor weights to address potentially informative censoring. Effect measure modification by burn size was also assessed. RESULTS Overall, 4,426 patients met inclusion criteria, and 349 (7.9%) patients had at least 1 HAI within 60 days of admission. Compared to 6 times as likely to acquire an HAI (HR, 6.38; 95% CI, 3.64-11.17); and patients with >20% TBSA were >10 times as likely to acquire an HAI (HR, 10.33; 95% CI, 5.74-18.60). Patients with inhalational injury were 1.5 times as likely to acquire an HAI (HR, 1.61; 95% CI, 1.17-2.22). The effect of inhalational injury (P=.09) appeared to be larger among patients with ≤20% TBSA. CONCLUSIONS Larger burns and inhalational injury were associated with increased incidence of HAIs. Future research should use these risk factors to identify potential interventions. Infect Control Hosp Epidemiol 2017;38:1441-1448.

The role of seizure disorders in burn injury and outcome in Sub-Saharan Africa

Patients with epilepsy have higher incidence and severity of burn injury. Few studies describe the association between epilepsy and burns in low-income settings, where epilepsy burden is highest. The authors compared patients with and without seizure disorder in a burn unit in Lilongwe, Malawi. The authors conducted a retrospective study of patients admitted to the Kamuzu Central Hospital burn ward from July 2011 to December 2012. Descriptive analysis of patient characteristics and unadjusted and adjusted analyses of risk factors for mortality were conducted for patients with and without seizure disorder. Prevalence of seizure disorder was 10.7% in the study population. Adults with burns were more likely to have seizure disorder than children. Flame injury was most common in patients with seizure disorder, whereas scalds predominated among patients without seizure disorder. Whereas mortality did not differ between the groups, mean length of stay was longer for patients with seizure disorder, 42.1 days vs 21.6 days. Seizure disorder continues to be a significant risk factor for burn injury in adults in Malawi. Efforts to mitigate epilepsy will likely lead to significant decreases in burns among adults in Sub-Saharan Africa and must be included in an overall burn prevention strategy in our environment.

Seizure-related vehicular crashes and falls with injuries for people with epilepsy (PWE) in northeastern Thailand

This cross-sectional study aimed to determine the number and types of falls and vehicular crashes with injuries , as well as some specific behavioral associations in people with epilepsy (PWE) in northeastern Thailand. Two hundred and three patients with epilepsy were randomly recruited from the university epilepsy clinic in Khon Kaen, who then completed an interview and a questionnaire. It was found that 84.5% of the patients were operating a vehicle on a regular basis (more than 3days a week), and 21.6% of those had been in a vehicle crash. Additionally, 25.6% of the patients had been involved in falls with injuries. Forty-three percent of the respondents had been involved in either a vehicular crash or a fall with an injury, with 39.7% of the accidents resulting in moderate to severe injuries. Medication compliance was estimated at 66%, while 59.1% said that they had little or no control over their seizures, and more than half the patients did not feel confident about their ability to take care of themselves or to take their antiepileptic drugs (AEDs) properly. In a multivariate model, the following factors significantly increased the risk of being in either a vehicular crash or a fall with an injury: being single, attaining a secondary or higher education, exercising at least three times a week, napping every day or more frequently, and having poor seizure control. The results of this study suggest that patients' poor medication adherence and lack of confidence in managing their seizures may contribute to accidents. Patients with epilepsy should be counseled to seek less risky behaviors and try to attend classes that provide education on AED management.

Injuries in Patients with Epilepsy and Some Factors Associated with Injury

INTRODUCTION

The aim of the study was to evaluate injuries in patients with epilepsy and some factors associated with injury.

METHODS

This study included 126 epileptic patients who attended a neurology outpatient clinic of a hospital between March 2009 and March 2010. Data were collected using a patient information form and an injury evaluation form. The data were evaluated using percentage, mean and the Chi square test.

RESULT

82.5% of patients have sustained injury due to an epileptic seizure. Soft tissue injuries were the most common (70.2%), followed by head injury (61.5%), dental and tongue injury (%58.6), burns (24%), and orthopaedic injury (21.2%). The most common site of burns were the upper extremities and the face (36% and 24%, respectively). Burns occurred during cooking in 32% of cases. Five patients had upper extremity fractures. Four patients faced the risk of bathtub drowning. The injuries usually occurred at home. The significant risk factors for injury were generalized tonic-clonic seizures and high frequency of seizures. Twenty-six patients were taken to the emergency unit due to an injury.

CONCLUSION

Injury is a common problem in patients with epilepsy. Dental and tongue injury was the most common seizure-related injury. The risk factors were generalized tonic-clonic seizures, and high frequency of seizures. Patients with epilepsy can lead normal lives but certain precautions are needed to prevent seizure-related injuries.

Seizure-related injuries and hospitalizations: self-report data from the 2010 Australian Epilepsy Longitudinal Survey

AIM

To examine self-report data on seizure-related injuries and hospitalizations.

METHOD

We analyzed data from the 2010 Australian Epilepsy Longitudinal Survey, distributed to registrants on the Australian Epilepsy Research Register. 343 responses were received (55% response rate), providing insight into experiences of living with seizures. This article examines self-report data on injuries related to seizures and hospitalizations.

RESULTS

64% of those reporting injuries required hospital treatment. Respondents with seizure-related injuries had significantly earlier seizure onset, with risk of injury related to myoclonic and atonic seizures and currently taking 3 or more AEDs. Soft tissue injuries were the most frequently reported (85%), with 27% indicating facial injuries.

CONCLUSIONS

The high rate of hospitalizations largely for soft tissue injuries suggests that access to more appropriate care was not available. Further research into care-seeking behavior by Australians suffering injury following seizure is required. Additionally, awareness of injury risks is important for appropriate self-management of epilepsy.

Injuries in epilepsy: a review of its prevalence, risk factors, type of injuries and prevention

Currently, there is intense clinical research into various aspects of the medical risks relating to epilepsy, including total and cause-specific mortality, accidents and injuries in patients with epilepsy and mortality related with seizures. Seizures occurring in precarious situations and resulting in injuries are still an important concern for patients with epilepsy, their employers and their care-givers. Submersion injuries, motor vehicle accidents, burns, and head injuries are among the most feared epilepsy-related injuries. These concerns seem valid because the hallmark of epilepsy, episodic impairment of consciousness and motor control, may occur during interictal EEG epileptiform discharges, even in the absence of a clinical seizure. In addition, psychomotor comorbidity and side effects of antiepileptic drugs may contribute to the risk of injuries in patients with epilepsy. Published risk factors for injuries include the number of antiepileptic drugs, history of generalized seizures, and seizure frequency. In general, epidemiological information about incidence of injuries has been conflicting and sparse. In general, studies focusing on populations with more severe forms of epilepsy tend to report substantially higher risks of injuries than those involving less selected populations. On the other hand, studies based on non-selected populations of people with epilepsy have not shown an increased frequency of injuries in people with epilepsy compared with the general population. Some studies have shown that patients with epilepsy are more frequently admitted to the hospital following an injury. Possible explanations include: more cautious attitude of clinicians toward injuries occurring in the setting of seizures; hospitalization required because of seizures and not to the injuries themselves; and hospitalization driven by other issues, such as comorbidities, which are highly prevalent in patients with epilepsy. Potentially the high rate of hospitalizations could be related with the severity of the injury. This article reviews the best available epidemiological information about injuries, including incidence and risk factors. Also this article reviews information about specific types of injuries such as fractures, burns, concussions, dislocations, etc. Information about accidents in people with epilepsy is also discussed.