The impact of obesity on severely injured children and adolescents

Obesity as a Risk Factor for Adverse Outcomes After Pedestrian Trauma Accidents in the Pediatric Population

OBJECTIVE

The aim of the study is to determine whether overweight or obese children are at an increased risk for injury and adverse outcomes following pedestrian motor vehicle accidents.

METHODS

We performed a retrospective study of patients between the ages of 2 and 17 who were pedestrians injured in a collision with a motorized vehicle, presenting to a level 1 trauma center, between January 1, 2010, to December 31, 2021. Patients with admission weights falling above the 90th percentile of the Centers for Disease Control and Prevention's sex-specific growth charts were identified as overweight/obese, those below the cutoff were categorized as nonobese. Groups were compared regarding demographics, mechanism of injury, Injury Severity Score, and Abbreviated Injury Scale by body region of injury. Outcome measures included hospital admission, length of hospital stay, intensive care unit (ICU) admission, ICU length of stay, and mortality.

RESULTS

Of the 306 patients included, 72 (23.5%) were overweight/obese and 234 (76.5%) were nonobese. The mean Injury Severity Score scores were higher among overweight/obese patients (5.37 vs 8.74, P = 0.008). Overweight/obese children were more likely to sustain severe abdominal injuries (Abbreviated Injury Scale ≥ 3) (12.2% vs 5.1%; odds ratio [OR], 2.64; 95% CI, 1.07-6.56; P = 0.030), be admitted to the hospital (94.5% vs 74.3%; OR, 12.07; 95% CI, 2.87-50.72; P < 0.001), require ICU admission (31.0% vs 20.0%, OR, 1.87; 95% CI, 1.03-3.36; P = 0.036), and require a longer ICU stay (0.9 vs 0.4 days, P = 0.014) compared with nonobese patients.

CONCLUSIONS

Obese and overweight children are at increased risk for higher injury severity scores, severe abdominal injuries, and ICU admission after pedestrian motor vehicle accidents.

Body Mass Index Does Not Predict Injury Pattern or Outcome After Motorcycle Crash

INTRODUCTION

The obesity epidemic plagues the United States, affecting approximately 42% of the population. The relationship of obesity with injury severity and outcomes has been poorly studied among motorcycle collisions (MCC). This study aimed to compare injury severity, mortality, injury regions, and hospital and intensive care unit length of stay (LOS) between obese and normal-weight MCC patients.

METHODS

Trauma registries from three Pennsylvania Level 1 trauma centers were queried for adult MCC patients (January 1, 2016, and December 31, 2020). Obesity was defined as adult patients with body mass index ≥ 30 kg/m2 and normal weight was defined as body mass index < 30 kg/m2 but > 18.5 kg/m2. Demographics and injury characteristics including injury severity score (ISS), abbreviated injury score, mortality, transfusions and LOS were compared. P ≤ 0.05 was considered significant.

RESULTS

One thousand one hundred sixty-four patients met the inclusion criteria: 40% obese (n = 463) and 60% nonobese (n = 701). Comparison of ISS demonstrated no statistically significant difference between obese and normal-weight patients with median ISS (interquartile range) 9 (5-14) versus 9 (5-14), respectively (P = 0.29). Obese patients were older with median age 45 (32-55) y versus 38 (26-54) y, respectively (P < 0.01). Comorbidities were equally distributed among both groups except for the incidence of hypertension (30 versus 13.8%, P < 0.01) and diabetes (11 versus 4.4%, P < 0.01). There was no statistically significant difference in Trauma Injury Severity Score or abbreviated injury score. Hospital LOS, intensive care unit LOS, and 30-day mortality among both groups were similar.

CONCLUSIONS

Obese patients experiencing MCC had no differences in distribution of injury, mortality, or injury severity, mortality, injury regions, and hospital compared to normal-weight adults. Our study differs from current data that obese motorcycle drivers may have different injury characteristics and increased LOS.

Epidemiological Study of Traumatic Brain and Spinal Injuries in a Pediatric Population: A One-Year Analysis of Prevalence, Causes and Trends

Background Traumatic brain injury (TBI) and spinal cord injury (SCI) are leading causes of morbidity and mortality in pediatric patients. However, the epidemiology of pediatric brain and spine injuries in Bulgaria is poorly documented. This study aims to analyze and identify the prevalence, causes, and trends of traumatic brain and spinal cord injuries in pediatric patients during the period of 1st June 2022 to 30th June 2023. Methods A retrospective study was conducted on the medical records of patients under 18 years of age who visited the emergency department of University Multiprofile Hospital for Active Treatment (UMHAT) Burgas, Bulgaria between 1st June 2022 and 30th June 2023. The incidence and etiology were stratified by age, gender, and anamnesis. Data processing and analysis were performed with the statistical package IBM SPSS v. 26.0 (IBM Corp., Armonk, NY, USA), and graphical analysis with MS Office Excel 2016 (Microsoft, Redmond, WA, USA). Means ± standard deviation and 95% confidence interval were calculated. All p-values less than 0.05 were considered indicative of statistical significance. Results Data for patients aged <18 years, admitted to the emergency department (ED) of UMHAT Burgas, Bulgaria from 1st June 2022 to 30th June 2023 were analyzed (n=38504). Of these patients, 32% were children (n=13857). One hundred thirty-four (0.3%) of the pediatric patients were hospitalized in the neurosurgical ward, and 4653 (10.7%) were hospitalized in other wards. Of the analyzed patients, 89 are boys (66.4%), 45 are girls (33.6%) (male-female ratio 2:1) and the mean age of the patients with a head trauma was 8.07 years old. The average number of patients by diagnosis is 13.4±35.37. The largest percent are patients with brain concussion (85.07%, n=114), followed by contusion of the nerve roots in the lumbar region or late contusion wound of the head (with 2.99% each, n=4); hydrocephalus or skull fracture (with 2.24% each, n=3); contusion of the nerve roots in the thoracic region (1.49%, n=2); and fracture at Th9 vertebrae, fracture at C2 vertebrae, brain trauma or brain tumor (with 0.75% each, n=1). The average number of patients by anamnesis is 13.2±17.99. The largest percent are patients who fall from their own height (44.78%, n=60); followed by falls from height (20.90%, n=28); car accident (7.46%, n=10); injured by fight, fall from a bicycle or incident during a football game (with 5.97% each, n=8); fall from electric scooter (4.48%, n=6); hit in the closet (2.99%, n=4); and finally from bike accident or hit by a rock (with 0.75% each, n=1). From 134 hospitalized patients in neurosurgery, 114 (85.07%) did not require surgical treatment and were treated with conservative treatment and 20 (14.93%) were treated surgically.  Conclusion In conclusion, this study highlights a significant burden of pediatric traumatic brain and spinal injuries in Bulgaria. The majority of cases were managed conservatively, emphasizing the need for preventive measures.

Relationship of Obesity and Severe Penetrating Thoracic and Abdominal Injuries in Adolescent Patients

BACKGROUND

Over 20% of United States adolescents are obese. A thicker layer of subcutaneous adiposity might provide a protective "armor" layer against penetrating wounds. We hypothesized that adolescents with obesity presenting after isolated thoracic and abdominal penetrating trauma have lower rates of severe injury and mortality than adolescents without obesity.

METHODS

The 2017-2019 Trauma Quality Improvement Program database was queried for patients between 12 and 17 years old presenting with knife or gunshot wounds. Patients with body mass index (BMI) ≥30 (obese) were compared to patients with BMI <30. Sub-analyses were performed for adolescents with isolated abdominal trauma and isolated thoracic trauma. Severe injury was defined as an abbreviated injury scale grade >3. Bivariate analyses were performed.

RESULTS

12,181 patients were identified; 1603 (13.2%) had obesity. In isolated abdominal gunshot or knife wounds, rates of severe intra-abdominal injuries and mortality were similar (all P > .05) between groups. In isolated thoracic gunshot wounds, adolescents with obesity had a lower rate of severe thoracic injury (5.1% vs 13.4%, P = .005) but statistically similar mortality (2.2% vs 6.3%, P = .053) compared to adolescents without obesity. In isolated thoracic knife wounds, rates of severe thoracic injuries and mortality were similar (all P > .05) between groups.

DISCUSSION

Adolescent trauma patients with and without obesity presenting after isolated abdominal or thoracic knife wounds had similar rates of severe injury, operative intervention, and mortality. However, adolescents with obesity presenting after an isolated thoracic gunshot wound had a lower rate of severe injury. This may impact the future work-up and management of adolescents sustaining isolated thoracic gunshot wounds.

Evaluating the association between obesity and discharge functional status after pediatric injury

BACKGROUND

Children with obesity frequently have functional impairment after critical illness. Although obesity increases morbidity risk after trauma, the association with functional outcomes in children is unknown.

OBJECTIVE

To evaluate the association of weight with functional impairment at hospital discharge in children with serious injuries.

METHODS

This secondary analysis of a multicenter prospective study included children <15 years old with a serious injury. Four weight groups, underweight, healthy weight, overweight, and obesity/severe obesity were defined by body mass index z-scores. The functional status scale (FSS) measured impairment across six functional domains before injury and at hospital discharge. New domain morbidity was defined as a change ≥2 points. The association between weight and functional impairment was determined using logistic regression adjusting for demographics, physiological measures, injury details, presence of a severe head injury, and physical abuse.

RESULTS

Although most patients discharged with good/unchanged functional status, new domain morbidity occurred in 74 patients (17%). New FSS domain morbidity occurred in 13% of underweight, 14% of healthy weight, 15% of overweight, and 26% of obese/severe obese patients. Compared to healthy weight patients, those with obesity had more frequent new domain morbidity (p = 0.01), while the other weight groups had similar morbidity. However, after adjustment for confounders, weight was not associated with new functional morbidity at discharge.

CONCLUSION

Patients with obesity have greater frequency of new domain morbidity after a serious injury; however, after accounting for injury characteristics, weight group is not independently associated with new functional morbidity at hospital discharge after injury in children.

LEVEL OF EVIDENCE

III.

The Impact of Obesity on Critical Illnesses

ABSTRACT

In the last few decades, obesity became one of the world's greatest health challenges reaching a size of global epidemic in virtually all socioeconomic statuses and all age groups. Obesity is a risk factor for many health problems and as its prevalence gradually increases is becoming a significant economic and health burden. In this manuscript we describe how normal respiratory and cardiovascular physiology is altered by obesity. We review past and current literature to describe how obesity affects outcomes of patients facing critical illnesses and discuss some controversies related to this topic.

Obesity Protects Against Operation in Pediatric Penetrating Trauma to the Torso

BACKGROUND

Studies in the adult population are conflicting regarding whether obesity is protective in penetrating trauma. In the pediatric population, data on obesity and penetrating trauma are limited. We sought to determine if there is a different rate of operation or of survival in pediatric and adolescent patients with obesity.

METHODS

We queried the National Trauma Data Bank research data set from 2013 to 2016 for all patients aged 2-18 who sustained traumatic penetrating injuries to the thorax and abdomen. The cohort was divided into body mass index percentiles for gender and age using Center for Disease Control definitions. Outcomes included overall survival, whether or not an operative procedure was performed, and hospital and intensive care unit (ICU) length of stay.

RESULTS

We analyzed 9611 patients with penetrating trauma, of which 4285 had an operative intervention. When adjusted for other variables (age, gender, race, ICU length of stay, hospital length of stay, and Injury Severity Score), children of every body mass index percentile had similar survival. Healthy weight patients were more likely to get an operation than patients in the obese category. Length of hospital stay was similar between groups, but the ICU length of stay was longer in the overweight and obese groups compared with healthy weight and underweight groups.

CONCLUSIONS

Children and adolescents with obesity are less likely to undergo operation after penetrating thoracoabdominal trauma. Further study is needed to determine the reason for this difference.

Clinical Outcomes in Critically Ill Children With Excess Weight: A Retrospective Cohort Study

BACKGROUND

Because of its high prevalence and negative impact on quality of life and longevity, overweight in childhood and adolescence is a major public health concern. The objective of the present study was to determine whether excess weight is associated with clinical outcomes in critically ill children and adolescents admitted to the pediatric intensive care unit (PICU).

METHOD

This retrospective cohort study was performed with children and adolescents admitted to a PICU over 3 years. Nutrition status was classified based on the body mass index z-score for age, following World Health Organization (WHO) criteria. The following outcomes were assessed: mortality, need for mechanical ventilation, length of admission, and multiple organ dysfunction syndrome.

RESULTS

Of 1468 patients admitted during the study period, 1407 were included in the study: 956 (68.0%) had adequate weight, 228 (16.2%) were overweight, and 223 (15.8%) were underweight. Associations were detected between most variables and all nutrition categories (underweight, adequate weight, and overweight). In the descriptive analysis, mortality was more prevalent in nutrition status extremes (extremely underweight or overweight). An independent association between nutrition status and mortality was not detected in any category.

CONCLUSION

Nutrition status was not independently associated with poor outcomes. However, overweight should be considered a potential risk factor for adverse clinical outcomes in PICU admissions.

Does obesity affect the short-term outcomes after cardiothoracic surgery in adolescents with congenital heart disease?

BACKGROUND

Obesity is a modifiable, independent risk factor for mortality and morbidity after cardiovascular surgery in adults. Our objective was to evaluate the impact of obesity on short-term outcomes in adolescents undergoing surgery for congenital heart disease (CHD).

METHODS

This retrospective chart review included patients 10-18 years of age who underwent CHD surgery. Our exclusion criteria were patients with a known genetic syndrome, heart transplantation, and patients with incomplete medical records. The clinical data collected included baseline demographics and multiple perioperative variables. Charting the body mass index in the Centers for Disease Control and Prevention growth curves, the entire cohort was divided into three categories: obese (>95th percentile), overweight (85th-95th percentile), and normal weight (<85th percentile). The composite outcome included survival, arrhythmias, surgical wound infection, acute neurologic injury, and acute kidney injury.

RESULTS

The study cohort (n = 149) had a mean standard deviation (SD), body mass index (BMI) of 22.6 ± 6.5 g/m2, and 65% were male. There were 27 obese (18.1%), 24 overweight (16.1%), and 98 normal weight (65.8%) patients. Twenty-seven (18%) patients had composite adverse outcomes. Overweight and obese patients had significantly higher adverse outcomes compared with normal weight patients (odds ratio (OR): 2.9; confidence interval (CI): 1-8.5, p = 0.04 and OR: 3; CI: 1-8.5, p = 0.03, respectively). In multivariate analysis, obesity was an independent predictor of adverse outcome in our cohort (p = 0.04).

CONCLUSIONS

Obesity is associated with short-term adverse outcome and increased health resource utilisation in adolescents following surgery for CHD. Further studies should evaluate if intervention in the preoperative period can improve outcomes in this population.

Obesity is associated with a reduced odds for blunt intra-abdominal injuries in children

OBJECTIVES

Children with obesity may possess unique injury characteristics that may affect their emergency care. To better understand this relationship, we investigated the association of obesity in pediatric trauma patients and intra-abdominal injuries (IAIs) and routinely utilized emergency department (ED) diagnostic procedures (computed tomography (CT) scans and ultrasound (US) examinations).

METHODS

This secondary data analysis utilized Pediatric Emergency Care Applied Research Network (PECARN) data from 2007 to 2010. Since height data were not available, children (2-17 years) with obesity were defined using weight-for-age percentiles. Non-parametric testing determined potential confounders. Adjusted odds ratios (aOR) were calculated using binary logistic regression for weight status and IAIs and diagnostic procedures.

RESULTS

There were 3846 patients with actual weight recorded: 3301 (85.8%) children without obesity and 545 (14.2%) with obesity. Children with obesity had decreased odds for IAI after adjusting for race, mechanical force injury (MFI) type, vomiting, and abdominal wall trauma (adjusted odds ratio (aOR)=0.58 (95% CI 0.35-0.97); p-value=0.04). Patients with obesity had reduced odds for a CT examination. No association was found between obesity status and US utilization. African-American patients had decreased odds for IAIs, CT scans and US examinations after adjustment which could be related to MFI type.

CONCLUSIONS

Obesity appears to reduce the odds for pediatric IAIs and CT scans, but not for US examinations. Selection bias is possible due to injury severity and missing or excluded weight data. Further research is needed in other pediatric populations with obesity and blunt injuries.

A Perspective on Management of Limb Fractures in Obese Children: Is It Time for Dedicated Guidelines?

Limb fractures are the most common injuries in pediatric orthopedics. Early and late complications are often not preventable, even when providing the best treatment; furthermore, these injuries are largely implicated in medico-legal claims. The development of evidence-based guidelines is one of the main goals of medical research. Approved guidelines for diagnosis, treatment, and follow up are fundamental to obtain the best results in medical practice. Guidelines in pediatric traumatology have been developed, even though specific conditions, like obesity, could influence their drafting. The cast and fixation systems usually applied in pediatric fractures provide a growth plate sparing, a satisfying reduction, and good stress resistance, mostly because of a lower bodyweight compared to adults. Several studies suggest that obesity influences the bone quality, the management, and the outcomes in cases of fracture. High body weight increases the risk of trauma, modifies fracture characteristics, and increases the risk of incomplete reduction. Fractures in obese children have a higher rate of complications, regardless of conservative or surgical treatment. In obese children, surgical treatment is often used more frequently than with non-obese children. Such considerations are valid both for lower and upper limb fractures. The aim of this paper is to discuss recent scientific literature and provide a perspective on the benefits of a dedicated approach in the management of obese children. Guideline updates could improve healthcare quality in a pediatric setting, and also reduce medico-legal implications.

Body Habitus and Risk of Mortality in Pediatric Sepsis and Septic Shock: A Retrospective Cohort Study

OBJECTIVE

To investigate the association between body habitus and mortality in critically ill children with sepsis or septic shock.

STUDY DESIGN

This was a retrospective cohort study of prospectively collected data of children admitted to US pediatric intensive care units (PICUs) with a primary or secondary diagnosis of sepsis or septic shock. We separated body habitus into underweight, normal weight, overweight, and obese. Outcomes were mortality (primary), treatment with invasive mechanical ventilation (secondary), and time to PICU discharge for survivors (secondary). Multivariable analyses using mixed-effects logistic regression and shared frailty models clustered by unit and adjusted for confounding variables were used to assess the association between body habitus and outcomes.

RESULTS

There were 7038 children with sepsis or septic shock. Mortality was 10.1% (n = 714) and 52.9% (n = 3720) required invasive mechanical ventilation. Body habitus was not associated with mortality after controlling for hospital level effects and confounding variables. Children who were overweight and obese had greater odds of invasive mechanical ventilation (overweight OR 1.23 [95% CI 1.05-1.45], P = .011 and obese OR 1.57 [95% CI 1.37-1.80], P < .001) compared with children of normal weight. In survivors treated with invasive mechanical ventilation, children who were obese had a longer time to PICU discharge than children of normal weight (obese hazard ratio for discharge 0.84 [95% CI, 0.77-0.92], P < .0001).

CONCLUSIONS

There was no association between body habitus and mortality in critically ill children with sepsis. Children who were overweight and obese were more likely to receive invasive mechanical ventilation and mechanically ventilated survivors who were obsese had a longer time to PICU discharge.

Comparison of Resource Utilization and Length of Hospitalization Between Overweight and Healthy-Weight Pediatric Trauma Patients Presenting to a Pediatric Emergency Department With Moderate to Severe Injury: A Prospective Study

OBJECTIVES

Our study aimed to compare overweight and healthy-weight pediatric trauma patient outcomes, specifically with respect to hospital length of stay and resource utilization. We hypothesized that overweight pediatric trauma patients would have increased hospital length of stay and radiographic study use compared with their healthy-weight counterparts.

METHODS

This was a prospective, observational, cohort study of pediatric trauma patients aged 2 to 19 years presenting to an urban pediatric emergency department over a period of 1 year. Using measured height and weight values, body mass index (BMI) for age was calculated and plotted on the Centers for Disease Control and Prevention BMI-for-age growth charts. Patients were followed up throughout their hospitalization, and the following items were recorded: trauma alert level, mechanism of injury, age, sex, race, Glasgow Coma Scale score, total number of days in hospital, total number of intensive care unit days, total number of radiographs obtained, total number of computed tomography scans obtained, and mechanism of injury.

RESULTS

Our study population included 109 subjects. The mean age of the subjects was 9.7 years. The number of patients meeting the definition of obese (BMI for age ≥95%) was 15, or 14% of the total study population. There was no significant difference between the overweight cohort and the healthy-weight cohort found among any of the variables recorded and analyzed.

CONCLUSIONS

Although there are many chronic conditions in children associated with obesity, in the case of trauma, it does not seem to be a strong concern. A continued focus on preventing and reversing childhood obesity for other physical and mental health outcomes may be more important.

The Role of Obesity in Pediatric Orthopedics

Pediatric obesity has become a worldwide epidemic and leads to notable effects on the developing skeleton that can have lifelong implications. Obesity in the pediatric population alters bone metabolism, increasing the risk for fracture. It can alter the presentation of common pediatric orthopaedic conditions such as scoliosis. Obesity also leads to changes in the patterns and severity of pediatric fractures as well as alters conservative fracture treatment due to increased displacement risk. Obese pediatric trauma patients place a high burden on the nationwide hospital system in a variety of ways including the increased risk of perioperative complications. Obesity is modifiable, and addressing the issue can improve the orthopaedic and overall health of children.

Association of obesity with morbidity and mortality in critically ill children: a systematic review and meta-analysis of observational studies

Recent studies have suggested that obesity might be protective in specific conditions such as critical illness; however, there are controversial data in critically ill children with obesity. The aim of this study was to investigate the association of obesity with mortality and other outcomes in these patients. We conducted a systematic review of observational studies investigating obesity in critically ill children, published by August 2017 in PubMed and Scopus. After screening documents, 15 articles with 142119 patients were included in the systematic review and meta-analysis. The results were reported with odds ratio (OR) or standard mean difference (SMD). The primary outcome was mortality and the secondary outcomes were length of ICU stay (ICU LOS), length of hospital stay (hospital LOS), and duration of mechanical ventilation (MV). The analysis showed that critically ill children without obesity had lower risk of mortality compared to patients with obesity (OR 0.79, 95% CI 0.64 to 0.97, P = 0.025, I² = 35.2%). Hospital LOS was also significantly lower in children without obesity (pooled SMD -0.12, 95% CI -0.21 to -0.04, P = 0.004, I² = 8.1%). There were no differences in ICU LOS (95% CI -0.19 to 0.01, P = 0.083) and duration of MV (95% CI -0.22 to 0.03, P = 0.136) between critically ill children with and without obesity. In conclusion, the current systematic review and meta-analysis revealed that critically ill children with obesity have higher risk of mortality and length of hospital stay compared to the group without obesity. Further prospective studies are essential to elucidate the role of obesity and underlying mechanisms in predicting outcomes of critically ill children.

The impact of body mass index on resource utilization and outcomes of children admitted to a pediatric intensive care unit

Introduction:

Obesity is associated with poor health outcomes but may be protective in intensive care unit patients. The objective of this study is to describe the characteristics of underweight, normal weight, and obese children, and to compare their length of stay, resource utilization, and mortality.

Methods:

The charts of 1447 patients who were admitted to a tertiary-level pediatric intensive care unit during 1 calendar year were reviewed. Patients were divided into three groups: underweight (<5th percentile), normal (5th–95th percentiles), and obese (>95th percentile). Body mass index for age percentile was used for children older than age 2 years, and weight-for-height percentile was used for children younger than age 2 years. Demographic data, Pediatric Index of Mortality 2 score, Pediatric Index of Mortality 2 risk of mortality, hospital mortality, hospital length of stay, the use and duration of ventilator support, hemodynamic support, and dialysis were determined.

Results:

Fifteen percent of children were underweight, while 61.5% were normal weight and 23.5% were obese; 54.9% of the patients were male. The overall mortality was 1.87%, with no significant difference between the three weight groups. The racial distribution, prevalence, and duration of invasive and noninvasive ventilation, and the use of vasopressors, central venous lines, and dialysis were similar between three groups. Tube feeding and parenteral nutrition were used more often in the underweight group. Pediatric intensive care unit and hospital lengths of stays were higher in underweight children. Underweight children were younger when compared to normal or obese children. Pediatric Index of Mortality 2 scores and Pediatric Index of Mortality 2 risk of mortality scores were higher in underweight children.

Conclusion:

There were no significant differences between the three weight groups in mortality. Underweight children were younger and sicker, and received tube feeding and parenteral nutrition more frequently.

Reducing malnutrition in critically ill pediatric patients

Objective

To compare the prevalence of malnutrition during two time periods in a pediatric intensive care unit.

Methods

This was a retrospective cross-sectional study of patients admitted to the pediatric intensive care unit of a university hospital during two one-year periods with an interval of four years between them. Nutritional evaluation was conducted based on weight and height measured at admission. The body mass index-for-age was the parameter chosen to evaluate nutritional status, as classified according to the World Health Organization, according to age group.

Results

The total sample size was 881 (406 in the contemporary sample and 475 in the historical sample). There was a significant reduction in malnutrition in the contemporary sample (p = 0.03). Malnourishment in patients in the historical sample was significantly associated with mortality and length of stay, while malnourishment in patients in the contemporary sample was not associated with worse outcomes.

Conclusion

There was a significant reduction in malnutrition among patients in the same pediatric intensive care unit when comparing the two time periods. Our findings of a change in nutritional profile in critically ill patients corroborate the nutritional status data of children and adolescents worldwide.

Obesity in Pediatric Trauma

Obese children with high-energy injuries present with more severe injuries, more extremity injuries, and higher Injury Severity Scores. They are at increased risk for complications, prolonged ventilation, and ICU stay and have increased mortality. Obesity is associated with altered bone mass accrual and higher fracture rates. Obese patients have a higher risk of loss of reduction of forearm fractures, more severe supracondylar fractures, and a higher likelihood of lateral condyle fractures. Obese patients are more likely to have complications with femur fractures and have higher rates of foot and ankle fracture.

Is elevated body mass index protective against cervical spine injury in adults?

PURPOSE

Correlate body mass index (BMI) with incidence and type of cervical spine injury seen on CT in adult patients presenting with blunt trauma.

MATERIALS AND METHODS

Retrospective chart review of all adult blunt trauma patients who had a cervical spine CT performed at our level 1 trauma center during an approximately 3-year period.

RESULTS

A statistically significant (p = 0.01) difference in cervical spine injury incidence was present between different BMI groups. Cervical spine injury incidence was 7.7% for underweight (BMI ≤ 18) patients, 7.1% for normal weight (BMI 18-25) patients, 6.2% for overweight/obese (BMI 25-35) patients, and 4.7% for morbidly obese (BMI > 35) patients. Using BMI > 18-25 as a reference group, females with BMI > 25-35 had an adjusted odds ratio (aOR) of 0.56 (CI 0.41-0.75) and females with BMI > 35 had an aOR of 0.42 (CI 0.26-0.70). Males with a BMI ≤ 18 had an aOR of 2.20 (CI 1.12-4.32) and males with BMI > 35 had an aOR of 0.66 (CI 0.46-0.95). A particularly low incidence of cervical spine injury was observed in patients older than 65 in the obese group with a cervical spine injury rate of only 1.4% in this patient population. No statistical significant difference was seen in injury morphology across the BMI groups.

CONCLUSION

An inverse relationship exists between BMI and the overall incidence of cervical spine injury. This protective effect appears to be influenced by gender with elevated BMI having lower relative odds of cervical spine injury in women than in men. A particularly low rate of cervical spine injury was identified in obese patients over the age of 65. Routine imaging of all elderly, obese trauma patients with low energy mechanism of injury may not be warranted.

The relationship between body mass index and children's presentations to a tertiary pediatric emergency department

Background

The child obesity and its complications are associated with an alarming increased health care use, including the emergency department (ED). We evaluated the effects of the obesity and overweight in children admitted to ED, especially in patients with injury diagnosis.

Methods

A retrospective study of patients aged 6–18 years was conducted. Patients were categorized into normal weight (body mass index, BMI < 85th); overweight (BMI ≥ 85th e < 95th); obesity (BMI ≥ 95th). Multiple logistic analysis was used for estimation of risk factors associated with the BMI and to explore the association between injury diagnosis and BMI.

Results

The predictive factors associated with obesity and overweight were school age (p <  0.001), male gender (p <  0.001) and number of visits for year (obesity: p <  0.001 and overweight: p <  0.05). Obese children were less at injury risk than normal weight (p <  0.05). In injury subset, fractures in school age were more likely to occur in obesity (p <  0.01). Dislocated fractures (p <  0.01) and fractures at lower extremity were more likely to occur in obesity and overweight (p <  0.05).

Conclusions

School age children presenting to ED are more at risk of excess body weight than adolescents and are at higher fracture risk if obese and overweight. This has clear implication to support the efforts to reduce the obesity in childhood. The ED may represent a crucial setting for the early identification of these children and of co-morbidities related BMI ≥ 85th, and for a timely specialist referral of these children, especially if school age.

Vascular Access in Critically Ill Pediatric Patients With Obesity

OBJECTIVES

Pediatric obesity is highly prevalent and has been associated with poor outcomes for hospitalized children. Vascular access is essential in critically ill patients. The aim of this study was to evaluate whether critically ill children with obesity are more likely to undergo vascular device insertion (excluding peripheral IV catheters) and develop related complications.

DESIGN

Multi-institutional retrospective observational cohort study.

SETTING

Ninety-four U.S. PICUs included in the Virtual Pediatric Systems, LLC database.

PATIENTS

120,272 unique patients 2 to less than 18 years old admitted between January 2009 and December 2014.

INTERVENTIONS

None.

MEASUREMENTS AND MAIN RESULTS

Patients were categorized into normal weight, overweight, and obese (class 1, 2, or 3); underweight patients were excluded. We used mixed-effects multivariable logistic regression to test body mass index category as an independent predictor of vascular device placement and associated complications, adjusted for age, sex, severity of illness, primary diagnosis, presence of a complex chronic condition, and admission related to trauma or surgery. A total of 73,964 devices were placed in 45,409 patients (37.8% of the total cohort received a vascular device). Most device types placed differed significantly by weight status. Subjects with class 3 obesity were less likely (odds ratio, 0.74; 95% CI, 0.67-0.81) to undergo placement of any device compared with normal weight patients. Patients with all classes of obesity were more likely to undergo placement of a peripherally inserted central catheter, with the strongest association in those with class 2 obesity (odds ratio, 1.26; 95% CI, 1.14-1.40). Class 1 and class 3 obesity were independent risk factors for developing a complication, with odds ratio of 1.31 (95% CI, 1.11-1.53) and 1.45 (95% CI, 1.07-1.99), respectively.

CONCLUSIONS

Severe obesity is associated with decreased overall likelihood of placement of a vascular access device but increased likelihood of peripherally inserted central catheter placement and of device-related complications.

The Weighty Issue: The Impact of Body Mass Index (BMI) in Asian Trauma Patients

Background

The controversy surrounding the impact of Body Mass Index (BMI) on the outcome of trauma patients has been widely studied in the West. However, no such studies have looked at an Asian trauma population. The aim of our study was to investigate the impact of BMI on mortality, morbidity, severity and pattern of injury in trauma patients of multicultural Singapore.

Methods

In this prospective study, we recruited all trauma patients admitted to Tan Tock Seng Hospital over a 13 month period. Both the international World Health Organization (WHO) and Asian modified classifications of BMI were used for the purpose of our study. Patient demographics, co-morbidities, mechanism of injury, injury severity score (ISS), body regions injured, morbidity and mortality were collected using inpatient medical records.

Results

964 patients with a mean age of 50.5 years were recruited. Majority of injuries sustained were due to falls. There was no association between Asian BMI and ISS. Head, neck and cervical injuries occurred less commonly in the overweight and obese group, but BMI does not confer protection from truncal injury. BMI was not a significant risk factor for morbidity or mortality.

Conclusion

Being overweight does not appear to increase severity of injury in Asian trauma patients. BMI as an independent risk factor does not contribute to trauma mortality or morbidity. We conclude that BMI is not a significant contributing factor to adverse trauma outcomes in Asians.

Nutritional Status Based on Body Mass Index Is Associated With Morbidity and Mortality in Mechanically Ventilated Critically Ill Children in the PICU

OBJECTIVE

To determine the influence of admission anthropometry on clinical outcomes in mechanically ventilated children in the PICU.

DESIGN

Data from two multicenter cohort studies were compiled to examine the unique contribution of nutritional status, defined by body mass index z score, to 60-day mortality, hospital-acquired infections, length of hospital stay, and ventilator-free days, using multivariate analysis.

SETTING

Ninety PICUs from 16 countries with eight or more beds.

PATIENTS

Children aged 1 month to 18 years, admitted to each participating PICU and requiring mechanical ventilation for more than 48 hours.

MEASUREMENTS AND MAIN RESULTS

Data from 1,622 eligible patients, 54.8% men and mean (SD) age 4.5 years (5.1), were analyzed. Subjects were classified as underweight (17.9%), normal weight (54.2%), overweight (14.5%), and obese (13.4%) based on body mass index z score at admission. After adjusting for severity of illness and site, the odds of 60-day mortality were higher in underweight (odds ratio, 1.53; p < 0.001) children. The odds of hospital-acquired infections were higher in underweight (odds ratio, 1.88; p = 0.008) and obese (odds ratio, 1.64; p < 0.001) children. Hazard ratios for hospital discharge were lower among underweight (hazard ratio, 0.71; p < 0.001) and obese (hazard ratio, 0.82; p = 0.04) children. Underweight was associated with 1.3 (p = 0.001) and 1.6 (p < 0.001) fewer ventilator-free days than normal weight and overweight, respectively.

CONCLUSIONS

Malnutrition is prevalent in mechanically ventilated children on admission to PICUs worldwide. Classification as underweight or obese was associated with higher risk of hospital-acquired infections and lower likelihood of hospital discharge. Underweight children had a higher risk of mortality and fewer ventilator-free days.

The Effect of Body Mass Index on Postoperative Morbidity After Orthopaedic Surgery in Children With Cerebral Palsy

BACKGROUND

Although a plethora of literature exists on the impact of body mass index (BMI) in orthopaedic surgery, few have examined its implications in the pediatric cerebral palsy (CP) population. The aim of this study is to evaluate the effect of BMI class on 30-day complications after orthopaedic surgery on children with CP.

METHODS

A retrospective analysis of the American College of Surgeons National Surgical Quality Improvement Program (NSQIP) Pediatric participant use files from 2012 to 2013 was conducted. Patients with a diagnosis of CP undergoing any orthopaedic procedure were included and subclassified according to BMI classes: underweight, normal weight, overweight, and obese. Multivariate logistic regressions were performed to evaluate the independent effect of BMI class on total, surgical site, and medical complications as well as unplanned reoperations.

RESULTS

A total of 1746 patients were included in our study. These included 345 (19.8%) underweight, 952 (54.5%) normal weight, 209 (12.8%) overweight, and 240 (13.7%) obese children and adolescents. In hip and lower extremity osteotomies, underweight class was an independent risk factor for total complications (P=0.037) and medical complications (P=0.031). Similarly, underweight class was a risk factor for total complications (P=0.022) and medical complications (P=0.019) in spine procedures. Weight class was not independently associated with complications in tendon procedures. Overweight and obesity classes were not associated with any independent increased risk for complications.

CONCLUSIONS

With respect to the pediatric CP population, underweight status was deemed an independent predictor of increased complications in osteotomies and spine surgery with no independent increased risk in the overweight or obese cohorts. This information can greatly aid providers with risk stratification, preoperative counseling, and postoperative monitoring as it relates to orthopaedic surgery.

LEVEL OF EVIDENCE

Level III-Prognostic.

Obesity in pediatric trauma

BACKGROUND/PURPOSE

The implications of childhood obesity on pediatric trauma outcomes are not clearly established. Anthropomorphic data were recently added to the National Trauma Data Bank (NTDB) Research Datasets, enabling a large, multicenter evaluation of the effect of obesity on pediatric trauma patients.

METHODS

Children ages 2 to 19years who required hospitalization for traumatic injury were identified in the 2013-2014 NTDB Research Datasets. Age and gender-specific body mass indices (BMI) were calculated. Outcomes included injury patterns, operative procedures, complications, and hospital utilization parameters.

RESULTS

Data from 149,817 pediatric patients were analyzed; higher BMI percentiles were associated with significantly more extremity injuries, and fewer injuries to the head, abdomen, thorax and spine (p values <0.001). On multivariable analysis, higher BMI percentiles were associated with significantly increased likelihood of death, deep venous thrombosis, pulmonary embolus and pneumonia; although there was no difference in risk of overall complications. Obese children also had significantly longer lengths of stay and more frequent ventilator requirement.

CONCLUSIONS

Among children admitted after trauma, increased BMI percentile is associated with increased risk of death and potentially preventable complications. These findings suggest that obese children may require different management than nonobese counterparts to prevent complications.

LEVEL OF EVIDENCE

Level III; prognosis study.

The impact of morbid obesity on solid organ injury in children using the ATOMAC protocol at a pediatric level I trauma center

INTRODUCTION

Obesity is an epidemic in the pediatric population. Childhood obesity in trauma has been associated with increased incidence of long-bone fractures, longer ICU stays, and decreased closed head injuries. We investigated for differences in the likelihood of failure of non-operative management (NOM), and injury grade using a subset of a multi-institutional, prospective database of pediatric patients with solid organ injury (SOI).

METHODS

We prospectively collected data on all pediatric patients (<18years) admitted for liver or splenic injury from September 2013 to January 2016. SOI was managed based upon the ATOMAC protocol. Obesity status was derived using CDC definitions; patients were categorized as non-obese (BMI <95th percentile) or obese (BMI ≥95th percentile). The ISS, injury grade, and NOM failure rate were calculated among other data points.

RESULTS

Of 1012 patients enrolled, 117 were identified as having data regarding BMI. Eighty-four percent of patients were non-obese; 16% were obese. The groups did not differ by age, sex, mechanism of injury, or associated injuries. There was no significant difference in the rate of failure of non-operative management (8.2% versus 5.3%). Obesity was associated with higher likelihood of severe (grade 4 or 5) hepatic injury (36.8% versus 15.3%, P=0.048) but not a significant difference in likelihood of severe (grade 4 or 5) splenic injury (15.3% versus 10.5%, P=0.736). Obese patients had a higher mean ISS (22.5 versus 16.1, P=0.021) and mean abdominal AIS (3.5 versus 2.9, P=0.024).

CONCLUSION

Obesity is a risk factor for more severe abdominal injury, specifically liver injury, but without an associated increase in failure of NOM. This may be explained by the presence of hepatic steatosis making the liver more vulnerable to injury. A protocol based upon physiologic parameters was associated with a low rate of failure regardless of the pediatric obesity status.

LEVEL OF EVIDENCE

Level II prognosis.

Childhood Obesity Increases the Risk of Failure in the Treatment of Distal Forearm Fractures

BACKGROUND

Childhood obesity is a national problem that has gained significant attention in both the medical literature and the national media. Obesity in the adult population has been associated with increased failure of conservative treatments. Our hypothesis is that childhood obesity is associated with a loss of reduction after closed treatment of distal radius fractures.

METHODS

A total of 157 patients with consecutive distal radius fractures who underwent closed reduction in the emergency department or the operating room were included from the office records of the sole pediatric orthopaedic subspecialist group in a metropolitan area from January 2011 to June 2012. All cases were initially treated with fiberglass casting with or without closed reduction. All patients completed the casting treatment and demonstrated radiographic union. Patients' age, weight, height, number of office visits, subsequent surgeries, and fracture angulation were recorded and analyzed.

RESULTS

Sixty-six (42%) children were overweight (BMI>85th percentile) and 46 (29%) children met the criteria for obesity (BMI>95th percentile). Fourteen normal-sized children (12%) and 13 obese children (28%) required a reduction in the operating room after initial treatment, which was significant (P=0.02). Obese children needed significantly more visits requiring radiographs (P=0.004). Obese children were significantly less likely to have an initial perfect reduction in the emergency room (P=0.005).

CONCLUSIONS

The results of closed reduction and casting for displaced distal radius fractures are typically excellent with few complications or risks. The present study supports the hypothesis that obesity results in a higher rate of malreduction and subsequent manipulations with closed reduction and casting. Close follow-up and early consideration for additional treatment in this patient population may help reduce the need for further manipulations.

LEVEL OF EVIDENCE

Level III.

Obese children experience more extremity fractures than nonobese children and are significantly more likely to die from traumatic injuries

Two of the most prevalent problems children facing worldwide are injuries and obesity. We conducted a systematic review of published studies that evaluated the effects of obesity on children with traumatic injuries. Six studies published between 2006 and 2014 were identified, comprising a total of 4594 children: 867 were obese and 3727 were not. Obese children were 25% more likely to have extremity fractures than nonobese children (p = 0.003), and their mortality rate was significantly higher at 4.7% versus 2.8% (p = 0.026).

CONCLUSION

Our review showed that obese children were more likely to have extremity fractures and die of traumatic injuries than nonobese children.

Obesity enhances sepsis-induced liver inflammation and injury in mice

OBJECTIVE

How obesity affects the response to sepsis was not completely understood. It was hypothesized that obesity alters adipose and hepatic tissue inflammation through signal transducer and activator of transcription (STAT3) activation.

METHODS

Male C57BL/6 mice at 6 weeks of age were randomized to a high-fat diet (60% kcal fat) or normal diet (16% kcal fat) for 6 to 7 weeks. Sepsis was then induced by cecal ligation and puncture, and animals were monitored for survival or sacrificed and tissue collected.

RESULTS

High-fat diet-fed mice gained more weight, had increased fat mass, and were glucose intolerant compared with normal diet-fed mice. Obesity increased hepatic neutrophil infiltration and injury after sepsis. Mice with obesity had higher plasma leptin levels compared with mice without obesity. Adipose tissue expression of adiponectin receptor 2, tumor necrosis factor-α, and peroxisome proliferator activated receptor gamma was altered during sepsis and affected by obesity, but the greatest change in adipose tissue expression was in leptin. Septic mice with obesity had lower plasma interleukin-17a, interleukin-23, and tumor necrosis factor-α levels and increased hepatic STAT3 and activator protein-1 activation compared with septic mice without obesity. Ultimately, mice with obesity had a lower probability of survival following sepsis.

CONCLUSIONS

Mice with obesity are more susceptible to sepsis and have higher mortality, in part, through activation of the STAT3 signaling pathway and through activator protein-1 activation.

Obesity and Mortality Risk in Critically Ill Children

BACKGROUND AND OBJECTIVES

Childhood obesity is epidemic and may be associated with PICU mortality. Using a large multicenter PICU database, we investigated the association between obesity and PICU mortality, adjusting for initial severity of illness. We further investigated whether height- and weight-based classifications of obesity compared with a weight-based classification alone alter the mortality distribution.

METHODS

This retrospective analysis used prospectively collected data from the Virtual PICU Systems database. Height, weight, age, and gender were used to calculate z score groups based on Centers for Disease Control and Prevention and World Health Organization growth curves. A random effects mixed logistic regression model was used to evaluate the association between obesity and PICU mortality, controlling for hospital, initial severity of illness, and comorbidities.

RESULTS

A total of 127,607 patients were included; the mortality rate was 2.48%. Being overweight was independently associated with increased PICU mortality after controlling for severity of illness with the Pediatric Index of Mortality 2 score and preexisting comorbidities. Mortality had a U-shaped distribution when classified according to weight-for-age or weight-for-height/BMI. When classifying patients using weight-for-age without respect to height, the nadir of the mortality curve was shifted, potentially falsely implying a benefit to mild obesity.

CONCLUSIONS

Risk-adjusted PICU mortality significantly increases as weight-for-height/BMI increases into the overweight and obese ranges. We believe that height data are necessary to correctly classify body habitus; without such information, a protective benefit from mild obesity may be incorrectly concluded.

Preoperative risk assessment in children undergoing major urologic surgery

BACKGROUND

Preoperative risk assessment is standard in adult surgery, but often these risk assessments cannot be applied to children. Previous studies emphasize the differences between pediatric and adult populations and variability by surgical procedure types.

OBJECTIVE

We investigated preoperative risk factors for several outcomes in children undergoing major urologic surgery using the National Surgical Quality Improvement Program (NSQIP) Pediatric.

STUDY DESIGN

A cohort of 2-18-year-old children who underwent major urologic surgery was identified by Current Procedure Terminology (CPT) codes in the 2012-2013 NSQIP-Pediatric. The NSQIP-Pediatric prospectively collects standardized and validated data from 61 sites on preoperative, operative, and 30-day postoperative variables. Urologic surgeries involving dissection of the peritoneal or extraperitoneal space were included. Patients undergoing pure genitourinary surgery were analyzed separately from those with bowel involvement to improve homogeneity. Postoperative outcomes including hospital length of stay and 30-day infective complications, non-infective complications, unplanned reoperation and readmissions were evaluated by fitting multivariable logistic regression models.

RESULTS

A total of 2601 patients were identified, of whom 399 (15.3%) underwent bowel-involved surgery and 2202 (84.7%) underwent pure genitourinary surgery. Patients in the bowel-involved group were significantly older with more comorbidity. Postoperative complications, unplanned return to operating room, hospital length of stay and readmission rates were all significantly worse in the bowel-involved group. In the pure genitourinary group, older age and white race improved some outcomes, while American Society of Anesthesia (ASA) class ≥ 3, total operation time, obesity, pulmonary risk factors, preoperative renal disease, developmental delay, structural central nervous system abnormality, and supplemental nutrition independently predicted at least one negative outcome (Table).

DISCUSSION

Consistent with previous research on reconstructive surgery, we identified a significant difference in patient age, surgery details, comorbidity, and increased complications for patients undergoing urologic surgery with bowel involvement compared with pure genitourinary surgery. Focusing solely on pure genitourinary surgery, we identified predictors of outcomes. Identification of these factors in pediatric urology is novel and only recently possible with the availability of the NSQIP-Pediatric.

CONCLUSION

Using the NSQIP-Pediatric, we confirmed differences in complication rates for major urologic surgeries, with and without bowel involvement in a national sample. Preoperative risk characteristics were also identified for patients undergoing pure genitourinary surgery. Further investigation into these relationships is necessary to better elucidate their clinical significance with the goal of improving surgical planning, postoperative care, and family counseling.

Optimal Nutrition for Acute Rehabilitation in the PICU

Achieving optimal nutrition for a child who is receiving acute rehabilitation in the pediatric intensive care unit requires an individualized approach. Nutrition screening and assessment is necessary to identify children at high risk for complications who require targeted interventions. Early enteral nutrition can improve outcomes, and is thus preferred over parenteral nutrition in the absence of gastrointestinal contraindications. Measurement of caloric requirements with indirect calorimetry is essential to accurately prescribe nutrition support, while monitoring body composition can determine efficacy of nutrition therapies employed. The complex care of critically ill children receiving acute rehabilitation is composed of treatments that compete with delivery of prescribed nutrition. Repeated feeding interruptions can lead to nutrition deficits and prolonged recovery. Nutrition bundles that incorporate evidenced-based nutrition algorithms, methods to overcome nutrition barriers, and nutrition monitoring parameters can direct and optimize nutrition care for critically ill children in need of acute rehabilitation.

Impact of Obesity during Pediatric Acute and Critical Illness

Pediatric overweight and obesity rates have reached epidemic proportions and continue to rise globally. Many long-term complications have been described about the impact of obesity; however, little work has been done in the area of acute and critical illness in children. Available evidence suggests that childhood obesity can impact acute and critical illness when compared with normal weight cohorts. This review will discuss the available literature on the impact of pediatric obesity during acute and critical illness.

Childhood obesity and in-hospital asthma resource utilization

OBJECTIVE

To examine the relationship between pediatric obesity and inpatient length of stay (LOS), resource utilization, readmission rates, and total billed charges for in-hospital status asthmaticus.

DESIGN/METHODS

We conducted a cross-sectional study of patients 5 to 17 years old hospitalized with status asthmaticus to 1 free-standing children's hospital system over 12 months. Only hospitalized patients initially treated in the hospital's emergency department were included to ensure all therapies/charges were examined. Patients with complex chronic conditions, pneumonia, or lacking recorded body mass index (BMI) were excluded. The primary exposure was BMI percentile for age. The primary outcome was LOS (in hours). Secondary outcomes were 90-day readmission rate, billed charges, and resource utilization: number of albuterol treatments, chest radiographs, intravenous fluids, intravenous or intramuscular steroids, and intensive care unit admission. Bivariate, adjusted Poisson and logistic regression model analyses were performed.

RESULTS

Five hundred eighteen patients met inclusion criteria. Most had a normal BMI (59.7%); 36.7% were overweight or obese. LOS, readmissions, and resource utilization outcomes were not associated with BMI category on bivariate analyses. After adjustment for demographic/clinical characteristics, LOS decreased by 2% for each decile increase in BMI percentile for age. BMI percentile for age was not associated with billed charges, readmissions, or other measures of resource utilization.

CONCLUSIONS

Although BMI decile for age is inversely associated with LOS for in-hospital pediatric status asthmaticus, the effect likely is not clinically meaningful.

An epidemiological evaluation of pediatric long bone fractures - a retrospective cohort study of 2716 patients from two Swiss tertiary pediatric hospitals

BACKGROUND

Children and adolescents are at high risk of sustaining fractures during growth. Therefore, epidemiological assessment is crucial for fracture prevention. The AO Comprehensive Injury Automatic Classifier (AO COIAC) was used to evaluate epidemiological data of pediatric long bone fractures in a large cohort.

METHODS

Data from children and adolescents with long bone fractures sustained between 2009 and 2011, treated at either of two tertiary pediatric surgery hospitals in Switzerland, were retrospectively collected. Fractures were classified according to the AO Pediatric Comprehensive Classification of Long Bone Fractures (PCCF).

RESULTS

For a total of 2716 patients (60% boys), 2807 accidents with 2840 long bone fractures (59% radius/ulna; 21% humerus; 15% tibia/fibula; 5% femur) were documented. Children's mean age (SD) was 8.2 (4.0) years (6% infants; 26% preschool children; 40% school children; 28% adolescents). Adolescent boys sustained more fractures than girls (p < 0.001). The leading cause of fractures was falls (27%), followed by accidents occurring during leisure activities (25%), at home (14%), on playgrounds (11%), and traffic (11%) and school accidents (8%). There was boy predominance for all accident types except for playground and at home accidents. The distribution of accident types differed according to age classes (p < 0.001). Twenty-six percent of patients were classed as overweight or obese - higher than data published by the WHO for the corresponding ages - with a higher proportion of overweight and obese boys than in the Swiss population (p < 0.0001).

CONCLUSION

Overall, differences in the fracture distribution were sex and age related. Overweight and obese patients seemed to be at increased risk of sustaining fractures. Our data give valuable input into future development of prevention strategies. The AO PCCF proved to be useful in epidemiological reporting and analysis of pediatric long bone fractures.

Pediatric obesity and safety in inpatient settings: a systematic literature review

OBJECTIVE

Pediatric obesity affects more than 16% of American children and is associated with worse outcomes in hospitalized patients. A systematic literature review was performed to identify studies of adverse care events affecting obese pediatric patients in the emergency room, operating room, or inpatient wards.

EVIDENCE REVIEW

We systematically searched Medline for articles published from 1970 to 2013 regarding obesity and patient safety events in pediatric acute care settings. We determined the study design, number of patients studied, definition and prevalence of obesity, the relevant acute care setting, the specific association with obesity addressed, and the results of each study.

RESULTS AND CONCLUSION

Thirty-four studies documented both procedural complications and issues with general hospital care. Most were retrospective and focused on surgery or anesthesia. Obese patients may have increased risk for a variety of adverse events. Further study could improve institutional patient safety guidelines to enhance care for obese children.

Causes and patterns of spine trauma in children and adolescents in Saudi Arabia: implications for injury prevention

BACKGROUND AND OBJECTIVES

Knowledge regarding traumatic spine injuries (TSIs) is essential for effective prevention strategies, particularly in the developing world, where majority of the population is younger and organized prevention programs are scarce. Therefore, our objective was to describe TSI mechanisms, demographics, patterns, and outcomes in children and adolescents.

DESIGN AND SETTINGS

Retrospective chart review in a major trauma center from May 2001 to May 2009 in Riyadh, Saudi Arabia.

PATIENTS AND METHODS

Detailed chart reviews were done for all consecutive TSI patients ≤18 years old.Cases were identified through the trauma database registry that included admitted patients.

RESULTS

Of the 3796 cases identified, 120 cases (3.2%) sustained 141 TSIs (mean age: 13.5 years; males:83.8%). TSI was most common among children from 16 to 18 years old. Overall, motor vehicle collision (MVC)was the most common injury mechanism (60.8%). However, younger patients (<12 years) sustained more pedestrian injuries (40.6%). Among MVC cases with known seat belt statuses (43.8%), 90.6% were not wearing seat belts. The cervical spine level was the most commonly affected (55.8%) region, especially in children <12 years old (88%). More than 1 affected spinal level was found in 23.3% cases. Spinal cord injuries were found in 19.2% cases. Overall, mortality was 8.3%, and half of these mortalities were secondary to pedestrian injuries. A total of 22.7% of cases were discharged with neurological deficits.

CONCLUSION

The high frequency and severity of MVC and pedestrian injuries observed in the present study raise significant concerns regarding the safety of children on the roads. Spine involvement was age specific;younger patients tended to have more cervical injuries, and older patients exhibited more thoracic spine involvement.

Fat or thin: Does it impact outcomes in polytrauma?

Polytrauma mortality rates have been continuously decreasing in recent years. Due to rising prevalence of obesity, overweight patients are increasing in numbers within the polytrauma population. The body mass index (BMI) provides information about nutritional status. Varying results have been reported concerning the effect of body mass index on polytrauma outcome. Both obesity and the condition of being underweight are independent risk factors for increased polytrauma mortality. While being underweight is associated with early polytrauma mortality, the presence of obesity correlates with higher rates of multi-organ failure and sepsis and is associated with late polytrauma mortality.

Acute care costs in overweight children: a pediatric urban cohort study

BACKGROUND

Evidence indicates obese children have increased health care utilization. It is unknown if this is true within the emergency department (ED) setting. Our purpose is to determine if overweight children presenting for emergency care have increased resource utilization over normal weight peers.

METHODS

We conducted a retrospective cohort study of children 2 to <18 years old presenting to a pediatric ED in 2007. Overweight was defined as >95th percentile sex-specific weight-for-age, and normal weight was defined as ≤95(th) percentile. We used a subsample validation to compare these study definitions to BMI-based definitions. We compared total billed charges and secondary outcomes of ED length of stay and admission rate using multivariate and logistic regression models. Outcomes were reported for admitted and discharged patients. Four diagnoses were examined for primary and secondary outcomes.

RESULTS

Of 32,996 included visits, 6333 (19.2%) were for overweight children. Study definitions correctly classified 98.3% of normal weight children but only 51.3% of overweight children. Overweight children were more likely to be older, black, and publicly insured. Median charges for overweight and normal weight children, whether discharged or admitted, were not different in the adjusted model. Admitted overweight children with asthma and fractures or dislocations had higher median charges than normal weight $4617 (2065-375,669) versus $4177 (1980-37,432, p=0.01) and $9855 (6681-58,546) versus $8137 (1461-52,557, p=0.01), respectively.

CONCLUSIONS

Overall acute care costs for overweight children are not different from normal weight children. However, admitted overweight children have disease-specific increased use of resources.

Influence of obesity on clinical outcomes in hospitalized children: a systematic review

IMPORTANCE

Obesity is prevalent among hospitalized children. Knowledge of the relationship between obesity and outcomes in hospitalized children will enhance nutrition assessment and provide opportunities for interventions.

OBJECTIVE

To systematically review the existing literature concerning the impact of obesity on clinical outcomes in hospitalized children.

EVIDENCE ACQUISITION

PubMed, Web of Science, and EMBASE databases were searched for studies of hospitalized children aged 2 to 18 years with identified obesity and at least 1 of the following clinical outcomes: all-cause mortality, incidence of infections, and length of hospital stay. Cohort and case-control studies were included. Cross-sectional studies, studies of healthy children, and those without defined criteria for classifying weight status were excluded. The Newcastle-Ottawa Scale was used to assess study quality.

RESULTS

Twenty-eight studies (26 retrospective; 24 cohort and 4 case-control) were included. Of the 21 studies that included mortality as an outcome, 10 reported a significant positive relationship between obesity and mortality. The incidence of infections was assessed in 8 of the 28 studies; 2 reported significantly more infections in obese compared with nonobese patients. Of the 11 studies that examined length of stay, 5 reported significantly longer lengths of hospital stay for obese children. Fifteen studies (53%) had a high quality score. Larger studies observed significant relationships between obesity and outcomes. Studies of critically ill, oncologic or stem cell transplant, and solid organ transplant patients showed a relationship between obesity and mortality.

CONCLUSIONS AND RELEVANCE

The available literature on the relationship between obesity and clinical outcomes is limited by subject heterogeneity, variations in criteria for defining obesity, and outcomes examined. Childhood obesity may be a risk factor for higher mortality in hospitalized children with critical illness, oncologic diagnoses, or transplants. Further examination of the relationship between obesity and clinical outcomes in this subgroup of hospitalized children is needed.

Traumatic disruption of the abdominal wall: lap-belt injuries in children

Traumatic abdominal wall hernia (TAWH) from high speed mechanism is a unique finding in adult trauma, and exceedingly rare in pediatrics. The majority of reports are of low-speed "handlebar" hernias associated with direct injury by bicycle handlebars. We report a series of three pediatric patients in motor vehicle collisions (MVC) who experienced TAWH by lap-belt and associated intra-abdominal injuries necessitating immediate operative intervention. Different operative approaches were used in each case to manage the varying types of disruptions. This adds to the pediatric literature the largest series of its kind.

Epidemiology of traumatic head injury in children and adolescents in a major trauma center in Saudi Arabia: implications for injury prevention

BACKGROUND AND OBJECTIVES

Injury to the head is the most common affected body part in pediatric trauma and could be associated with deleterious consequences. It presents a challenge for developing countries since many injuries are preventable and there are few epidemiological data to support injury prevention programs. The current study aimed to determine demographic characteristics, etiology and outcome of head injury in the pediatric population and compare findings to international figures.

DESIGN AND SETTINGS

Retrospective review of consecutive cases registered in major trauma center database, Riyadh, from 2001 to 2009.

PATIENTS AND METHODS

The database registry was limited to hospitalized patients following injury. Any head injury in a patient ≤18 years was included.

RESULTS

Of 3796 patients identified, 1219 patients (32.1%) suffered head injury (mean age 8.6 years; males 78.4%). Children under 12 years comprised 66.3%. Motor vehicle crash (MVC) was the commonest cause (34.2%), followed by pedestrian injury (30.3%) and falls (28.4%). When stratified by age, falls (45.6%) were the most common etiology under 6 years while MVC was the leading cause in high school students (74.4%). The latter group had the lowest mean (SD) Glascow coma scale scores ( 8.58 [4.7]), highest mean injury severity scale scores (23.4 [21]), highest rate of craniotomy (7%) and highest mortality (20%).

CONCLUSION

One third of pediatric trauma requiring hospital admission suffered head injury. Preschoolers and elementary school students were mostly affected. The striking incidence of pedestrian and fall injuries call for organized national prevention programs. Additionally, more attention should be directed to reduce MVC among high school students given their comparative high rate of severe injuries and deaths following trauma.

Pediatric obesity and traumatic lower-extremity long-bone fracture outcomes

BACKGROUND

Pediatric obesity is associated with lower-extremity injuries and poor outcomes after blunt trauma. Our aim was to determine if obese pediatric patients with femur and tibia fractures have more severe injury patterns and worse outcomes compared with those of nonobese patients.

METHODS

We performed a retrospective cohort study of obese and nonobese pediatric patients with femur or tibia fractures treated at two Level I trauma centers from 2004 to 2010. Patients weighing 95th percentile or greater for age and sex were classified as obese. Patients were compared regarding demographics, Injury Severity Score (ISS), as well as intra-abdominal and orthopedic injuries. Outcomes included fracture treatment, orthopedic complications, intensive care unit and hospital length of stay, ventilator days, and mortality.

RESULTS

Of the 356 patients included in the study, 78 (21.9%) were obese and 278 (78.1%) were nonobese. Obese patients were older (mean [SD], 9.9 [3.7] years vs. 8.8 [3.9] years; p = 0.0162), had a higher ISS (20.8 [13.4] vs. 14.5 [10.8]; p = 0.0002), and sustained more intra-abdominal solid organ (24.4% vs.13.5%; p = 0.0200) and hollow viscus (3.9% vs. 0.0%; p = 0.0105) injuries. They had more pelvic fractures (15.4% vs. 6.9%; p = 0.0196), bilateral tibia fractures (8.0% vs. 0.0%; p = 0.0332), and operatively treated femur fractures (89.9% vs. 79.1%; p = 0.0484). Adjusting for age, obese patients were more likely to be admitted to the intensive care unit (relative risk, 1.68; 95% confidence interval, 1.10-2.55) and die in the hospital (relative risk, 3.45; 95% confidence interval, 1.14-10.41). Adjusting for ISS, these associations were nonsignificant.

CONCLUSION

Obese patients with femur and tibia fractures have more severe injuries, which may predispose them to greater inpatient morbidity and mortality than do nonobese patients.

LEVEL OF EVIDENCE

Epidemiologic study, level III.