The influence of continuous renal replacement therapy on 1,3-ß-d-glucan levels in critically ill patients: a single-center retrospective propensity score study.

1,3-ß-d-Glucan (BDG) is commonly used for diagnosing invasive fungal infections (IFIs). While exposure to cellulose-based hemodialyzers is known to cause false-positive BDG results, the impact of modern hemofilters used in continuous renal replacement therapy (CRRT) remains unclear. This retrospective, single-center cohort study aimed to evaluate the effect of CRRT on BDG levels in critically ill patients. We included adult intensive care unit (ICU) patients with ≥1 BDG measurement between December 2019 and December 2020. The primary outcome was the rate of false-positive BDG results in patients exposed to CRRT compared to unexposed patients. Propensity score analysis was performed to control for confounding factors. A total of 103 ICU patients with ≥1 BDG level were identified. Most (72.8%) were medical ICU patients. Forty patients underwent CRRT using hemofilter membranes composed of sodium methallyl sulfonate copolymer (AN 69 HF) (82.5%) and of polyarylethersulfone (PAES) (17.5%). Among the 91 patients without proven IFI, 31 (34.1%) had false-positive BDG results. Univariable analysis showed an association between CRRT exposure and false-positive BDG results. However, the association between CRRT exposure and false-positive BDG results was no longer significant across three propensity score models employed: 1:1 match (n = 32) (odds ratio (OR) 1.65, p = .48), model-adjusted (n = 91) (OR 1.75, p = .38), quintile-adjusted (n = 91) (OR 1.78, p = .36). In this single-center retrospective analysis, exposure to synthetic CRRT membranes did not independently increase the risk of false-positive BDG results. Larger prospective studies are needed to further evaluate the association between CRRT exposure and false-positive BDG results in critically ill patients with suspected IFI.

Evaluation of a Disposable Vascular Pressure Device for Pre- and Postmembrane Pressure Monitoring During Venovenous Extracorporeal Membrane Oxygenation.

Membrane pressure monitoring during extracorporeal membrane oxygenation (ECMO) is integral to monitoring circuit health. We compared a disposable vascular pressure device (DVPD) to the transducer pressure bag arterial line (TPBAL) monitoring system to determine whether the DVPD can reliably and accurately monitor membrane pressures during venovenous extracorporeal membrane oxygenation (VV ECMO). We analyzed existing quality assurance data collected at a single center as part of routine circuit performance monitoring and process improvement on a convenience sample of four VV ECMO circuits. We placed and zeroed a DVPD in line with the pre- and postmembrane TPBAL setups in coordination with a standard transducer setup. We recorded DVPD and TPBAL pressure measurements every 4 hours for 2.5 days on the four separate VV ECMO circuits. We compared the standard and DVPD pressures using Bland-Altman plots and methods that accounted for repeated measures in the same subject. We recorded 58 pre/postmembrane pressures. Mean membrane pressure values were similar in the DVPD (pre: 208 mmHg [SD, 50.8]; post: 175 mmHg [46.3]) compared to the standard TPBAL setup (pre: 205 mmHg [52.0]; post: 177 mmHg [46.3]). Using Bland-Altman methods, premembrane pressures were found to be 2.2 mmHg higher (95% confidence interval [CI]: -5.3 to 9.7) in the standard TPBAL setup compared to DVPD and 1.8 mmHg higher (95% CI: -5.3 to 8.9) than the postmembrane pressures. The DVPD provided an accurate measurement of circuit pressure as compared to the TPBAL setup. Across the range of pre- and postmembrane pressures, both methods reliably agreed. Future trials should investigate DVPD accuracy in different environments such as prehospital field cannulation or critical care transport of ECMO patients.

Evaluating Target: Stroke guideline implementation on assessment and treatment times for patients with suspected stroke.

OBJECTIVES: Immediate ischemic stroke treatment improves outcomes and early alteplase administration is recommended for patients within window. We implemented stroke guidelines through a neuro-resuscitation initiative (NRI) and hypothesized that the intervention would decrease times to assessment and treatment. METHODS: We analyzed quality assurance data for EMS and triage patients arriving to our academic emergency department with suspected ischemic stroke to compare outcomes 12 months before to 6 months after initiative implementation at an academic certified primary stroke center in the U.S. Southwest. We examined four time-based outcomes: neurology at bedside, CT head without contrast, CT head angiogram, and alteplase administration. We summarized times with median and IQR values and compared pre and post times to event (in minutes) with Wilcoxon rank sum tests and Kaplan-Meier survival curves. RESULTS: We identified 203 EMS (83 pre, 120 post) and 66 (11 pre, 55 post) triage Stroke Alert patients. We observed decreased times for all outcomes in both the EMS and triage samples; however, only those in the EMS sample were significant. In the EMS sample, neurology at bedside median times decreased from 20 min to 2 min (p < 0.001); median minutes to CT head without contrast decreased from 16 min to 9 min (p < 0.001); median minutes to CT head angiogram decreased from 71 min to 21 min (p = 0.007); and, median minutes to alteplase decreased from 72 min to 49.5 min (p = 0.04). CONCLUSIONS: An academic ED led stroke care initiative streamlined evaluation and care with significantly shortened times to all four events.

Improving Emergency Access to Human Immunodeficiency Virus Prophylaxis for Patients Evaluated After Sexual Assault.

INTRODUCTION: Patients evaluated after sexual assault may benefit from nonoccupational postexposure prophylaxis (nPEP) to prevent infection with HIV, yet multiple barriers may prohibit nPEP delivery. The IN-STEP (Integrating nPEP after Sexual Trauma in Emergency Practice) project was designed to improve access to HIV screening and prevention for patients evaluated in the emergency department (ED) of our academic hospital after a sexual assault. METHODS: The IN-STEP team identified and addressed four key areas for improvement: (1) training of ED providers to perform nPEP assessments; (2) access to HIV testing in the ED; (3) provision of nPEP medications, using a patient-centered approach; and (4) continuity of care between the ED and follow-up sites in the community. Improvements were implemented using parallel plan-do-study-act cycles corresponding to these four key areas. RESULTS: IN-STEP resulted in significant systems improvements in HIV screening, prevention, and continuity of care. This program not only improved the care of patients affected by sexual assault but also those evaluated for HIV due to other indications. CONCLUSIONS: Involvement of a multidisciplinary leadership team, clear delineation of a patient-centered project focus, and coordination across four parallel areas for improvement were useful for completing this complex effort.

Accuracy and Reliability of a Disposable Vascular Pressure Device for Arterial Pressure Monitoring in Critical Care Transport.

OBJECTIVE: Arterial catheterization is a commonly performed procedure in intensive care units to guide the management of critically ill patients who require precise hemodynamic monitoring; however, this technology is not always available in the transport setting because of cumbersome and expensive equipment requirements. We compared the accuracy and reliability of a disposable vascular pressure device (DVPD) with the gold standard (ie, the transducer pressure bag invasive arterial monitoring system) used in intensive care units to determine if the DVPD can be reliably used in place of the traditional pressure transducer setup. METHODS: This study was a single-center, prospective, observational study performed in the adult intensive care unit of a large academic university hospital. A convenience cohort of hemodynamically stable, adult critically ill patients with femoral, brachial, or radial arterial catheters was recruited for this study. The Compass pressure device (Centurion Medical Products, Williamston, MI) is a disposable vascular pressure-sensing device used to assure venous access versus inadvertent arterial access during central line placement. The DVPD was attached to an in situ arterial catheter and measures the mean intravascular pressure via an embedded sensor and displays the pressure via the integrated LCD screen. Using a 3-way stopcock, the DVPD was compared with the standard arterial setup. We compared the mean arterial pressure (MAP) in the standard setup with the DVPD using Bland-Altman plots and methods that accounted for repeated measures in the same subject. RESULTS: Data were collected on 14 of the 15 subjects enrolled. Five measurements were obtained on each patient comparing the DVPD with the standard arterial setup at 1-minute intervals over the course of 5 minutes. A total of 70 observations were made. Among the 15 subjects, most (10 [67%]) were radial or brachial sites. The average MAP scores and standard deviation values obtained by the standard setup were 83.5 mm Hg (14.8) and 81.1 mm Hg (19.3) using the DVPD. Just over half (51.4%) of the measurements were within a ± 5-mm Hg difference. Using Bland-Altman plotting methods, standard arterial measurements were 2.4 mm Hg higher (95% confidence interval, 0.60-4.1) than with the DVPD. Differences between the 2 devices varied significantly across MAP values. The standard arterial line measurements were significantly higher than the DVPD at low MAP values, whereas the DVPD measurements were significantly higher than the standard arterial line at high MAP values. CONCLUSION: The DVPD provides a reasonable estimate of MAP and may be suitable for arterial pressure monitoring in settings where standard monitoring setups are not available. The DVPD appears to provide "worst-case" values because it underestimates low arterial blood pressure and overestimates high arterial blood pressure. Future trials should investigate the DVPD under different physiological conditions (eg, hypotensive patients, patients with ventricular assist devices, and patients on extracorporeal membrane oxygenation), different patient populations (such as pediatric patients), and in different environments (prehospital, air medical transport, and austere locations).

Should we resuscitate elderly patients with blunt traumatic cardiac arrest? Analysis of National Trauma Registry Data in Japan.

OBJECTIVES: Recent studies suggest that survival after traumatic cardiac arrest (TCA) has been improving. Many elderly adults enjoy active lifestyles, which occasionally result in TCA. The epidemiology and efficacy of resuscitative procedures on blunt TCA in elderly patients are largely unknown. Our primary aim was to compare the survival to discharge following blunt TCA between non-elderly adult (ages 18-59 years) and elderly patients (age ≥60 years). METHODS: We analysed 2004-2015 observational cohort data from a nationwide trauma registry in Japan. We included all adult patients (18 years and older) who experienced blunt TCA. We excluded patients missing data for age, survival, mechanism of injury or initial vital signs. Resuscitative procedures included thoracotomy and resuscitative endovascular balloon occlusion of the aorta. We compared survival for elderly patients (age ≥60 years old) to younger adults. RESULTS: Of 8347 patients with blunt TCA, 3547 (42.5%) were elderly. Survival differed significantly by age: 164/4800 (3.4%) of younger adults survived whereas 188/3547 (5.3%) of elderly patients survived (p<0.001). Survival increased but Injury Severity Scores (ISSs) declined with increasing patient age. The efficacy of resuscitative procedures did not vary by age. In logistic regression models, increasing age was independently associated with better survival. CONCLUSION: In a cohort of patients with blunt TCA, survival increased with increasing patient age. A number of patients with low ISS in the elderly group raises the possibility that this improved survival is due to preceding or concomitant medical cardiac arrest in the older cohort. Clinicians should be cautious about applying TCA algorithms to elderly patients and should not be discouraged from resuscitating TCA because of patient age.

Transgender and Gender-Nonconforming Patients in the Emergency Department: What Physicians Know, Think, and Do.

STUDY OBJECTIVE: We explore self-reported knowledge, attitudes, and behaviors of emergency physicians in regard to the care of transgender and gender-nonconforming patients to identify opportunities to improve care of this population. METHODS: From July to August 2016, we electronically surveyed the American College of Emergency Physicians' Emergency Medicine Practice-Based Research Network of 654 active emergency physician participants. We performed frequency tabulations to analyze the closed-ended response items. RESULTS: Of the 399 respondents (61% response rate), 88.0% reported caring for transgender and gender-nonconforming patients in the emergency department (ED), although 82.5% had no formal training about this population. The majority of physicians (86.0%) were comfortable asking about personal pronouns. Only 26.1% of respondents knew the most common gender-affirming surgery for female-to-male patients; 9.8% knew the most common nonhormone gender-affirming medication that male-to-female patients use. Almost no respondents (<3%) were aware of emergency medicine practitioners' performing inappropriate examinations on transgender and gender-nonconforming patients. CONCLUSION: Although transgender and gender-nonconforming people represent a minority of ED patients nationwide, the majority of respondents reported personally providing care to members of this population. Most respondents lacked basic clinical knowledge about transgender and gender-nonconforming care.

What Happens to High-Cost Patients? An Analysis of the Trajectories of Billed Charges Over Time.

A growing literature documents the substantial burden that a small proportion of high-cost, medically complex patients impose on health care systems. However, it is not clear whether high-cost patients remain costly over time. This study looks at the monthly distribution of billed charges for a cohort of high-cost, medically complex patients enrolled in an intensive care management program in a university health care system, and finds that the billing trajectory is heterogeneous and highly nonlinear, characterized by a substantial spike in billed charges prior to identification, followed by a considerable drop prior to enrollment and a sustained drop thereafter. The conclusion is that many high-cost patients experience costly events that resolve without intensive case management. These results also suggest that interventions should target only those high-cost patients with expected continued high cost and that pre-post study designs may overstate the impact of interventions for high-cost, medically complex patients.

Family presence during brain death evaluation: a randomized controlled trial*.

OBJECTIVE: To evaluate if a family presence educational intervention during brain death evaluation improves understanding of brain death without affecting psychological distress. DESIGN: Randomized controlled trial. SETTING: Four ICUs at an academic tertiary care center. SUBJECTS: Immediate family members of patients suspected to have suffered brain death. INTERVENTIONS: Subjects were group randomized to presence or absence at bedside throughout the brain death evaluation with a trained chaperone. All randomized subjects were administered a validated "understanding brain death" survey before and after the intervention. Subjects were assessed for psychological well-being between 30 and 90 days after the intervention. MEASUREMENTS AND MAIN RESULTS: Follow-up assessment of psychological well-being was performed using the Impact of Event Scale and General Health Questionnaire. Brain death understanding, Impact of Event Scale, and General Health Questionnaire scores were analyzed using Wilcoxon nonparametric tests. Analyses were adjusted for within family correlation. Fifty-eight family members of 17 patients undergoing brain death evaluation were enrolled: 38 family members were present for 11 brain death evaluations and 20 family members were absent for six brain death evaluations. Baseline understanding scores were similar between groups (median 3.0 [presence group] vs 2.5 [control], p = 0.482). Scores increased by a median of 2 (interquartile range, 1-2) if present versus 0 (interquartile range, 0-0) if absent (p < 0.001). Sixty-six percent of those in the intervention group achieved perfect postintervention "understanding" scores, compared with 20% of subjects who were not present (p = 0.02). Median Impact of Event Scale and General Health Questionnaire scores were similar between groups at follow-up (Impact of Event Scale: present = 20.5, absent = 23.5, p = 0.211; General Health Questionnaire: present = 13.5, absent = 13.0, p = 0.250). CONCLUSIONS: Family presence during brain death evaluation improves understanding of brain death with no apparent adverse impact on psychological well-being. Family presence during brain death evaluation is feasible and safe.

Do medical students understand brain death? A survey study.

BACKGROUND: A lack of understanding of brain death has been demonstrated among physicians, and may stem from knowledge deficits at the medical school level. The authors sought to evaluate current understanding of brain death and knowledge gaps among U.S. medical students at a single center. METHODS: Using a validated "Understanding Brain Death" survey tool, the authors surveyed the student body at an accredited four year medical school. A score of 5/5 on this scale indicated an expert level of understanding. The investigators identified areas of knowledge gaps, and compared brain death expertise throughout the curriculum progression. RESULTS: The overall response rate was 69% (212 of 306 students). Mean scores were 3.1, 3.9, 4.1, and 4.0 (out of 5) among first through fourth year classes respectively. Understanding of brain death differed across the medical school classes (p <0.0001). 33% (N=70) of all students attained scores of 5 indicating an expert level of understanding brain death. By class; 18% of first year students demonstrated expert levels of understanding, compared to 31% of second year students, 48% of third year students, and 39% of fourth year students. CONCLUSIONS: The level of understanding of brain death is low among the student body in a four year accredited U.S. medical school. This knowledge gap persists among graduating students as most do not attain an expert understanding of brain death. A more comprehensive brain death curriculum should be implemented in order to adequately equip physicians with this fundamental knowledge.

Ultrasound determination of chest wall thickness: implications for needle thoracostomy.

OBJECTIVE: Computed tomography measurements of chest wall thickness (CWT) suggest that standard-length angiocatheters (4.5 cm) may fail to decompress tension pneumothoraces. We used an alternative modality, ultrasound, to measure CWT. We correlated CWT with body mass index (BMI) and used national data to estimate the percentage of patients with CWT greater than 4.5 cm. METHODS: This was an observational, cross-sectional study of a convenience sample. We recorded standing height, weight, and sex. We measured CWT with ultrasound at the second intercostal space, midclavicular line and at the fourth intercostal space, midaxillary line on supine subjects. We correlated BMI (weight [in kilograms]/height(2) [in square meters]) with CWT using linear regression. 95% Confidence intervals (CIs) assessed statistical significance. National Health and Nutrition Examination Survey results for 2007-2008 were combined to estimate national BMI adult measurements. RESULTS: Of 51 subjects, 33 (65%) were male and 18 (35%) were female. Mean anterior CWT (male, 2.1 cm; CI, 1.9-2.3; female, 2.3 cm; CI, 1.7-2.7), lateral CWT (male, 2.4 cm; CI, 2.1-2.6; female, 2.5 cm; CI 2.0-2.9), and BMI (male, 27.7; CI, 26.1-29.3; female, 30.0; CI, 25.8-34.2) did not differ by sex. Lateral CWT was greater than anterior CWT (0.2 cm; CI, 0.1-0.4; P < .01). Only one subject with a BMI of 48.2 had a CWT that exceeded 4.5 cm. Using national BMI estimates, less than 1% of the US population would be expected to have CWT greater than 4.5 cm. CONCLUSIONS: Ultrasound measurements suggest that most patients will have CWT less than 4.5 cm and that CWT may not be the source of the high failure rate of needle decompression in tension pneumothorax.

Low-dose ketamine for analgesia in the ED: a retrospective case series.

OBJECTIVES: The aim of this study was to describe the use and effect of low-dose ketamine (LDK) for analgesia in the emergency department (ED). METHODS: A chart review was performed to identify all adult patients who received LDK for analgesia in our ED. Cases were identified by pharmacy record of ketamine administration. Low-dose ketamine was defined as the administration of 0.1 to 0.6 mg/kg of ketamine for pain control. Use of ketamine during procedural sedation was excluded. Data were analyzed descriptively. RESULTS: Thirty-five cases in which patients received LDK in the ED for a 2-year period were identified. Doses ranged from 5 to 35 mg. Administration was intravenous in 30 (86%) of 35 cases and intramuscular in 5 (14%) of 35 cases. Opioids were administered before or coadministered with LDK in 32 (91%) of 35 cases, and in the remaining 3 cases, opioids were used before the patient came to the ED. Improvement in pain was observed in 19 (54%) of 35 cases in which patients received LDK. Pain scores did not improve in 8 (23%) of 35 cases. Insufficient data were available to determine LDK effect for 8 (23%) of 35 cases. No significant adverse events were identified in any of the 35 cases. CONCLUSIONS: The administration of LDK in the ED may be a safe and effective adjunct for analgesia in some patients. However, prospective randomized controlled trials are needed before widespread use of LDK for analgesia in the ED can be recommended.

Emergency physician perceptions of patient safety risks.

STUDY OBJECTIVE: Although national standards to address patient safety exist, their relevance to emergency department (ED) patient safety is unclear. We survey practicing emergency physicians to assess their perceptions of the relative importance of patient safety concerns and how these varied by urban/rural location and practice characteristics. METHODS: We developed and analyzed electronically collected survey data that assessed emergency physician perceptions of patient safety risks. American College of Emergency Physicians (ACEP) members rated 16 patient safety concerns with a 5-point Likert scale. RESULTS: Of 2,507 emergency physician respondents, 1,114 (44%) practiced in urban, 1,056 (42%) in suburban, and 337 (13%) in rural settings. Crowding from inpatient boarding (mean Likert scale score 4.3), availability of specialty consultation (mean 4.1), and nursing shortages (mean 3.9) were the greatest concerns. Rural respondents ranked consultant availability (mean 4.3), lack of follow-up after ED care (mean 3.8), and nurse shortages (mean 3.8) as top concerns. Crowding was the greatest concern for suburban (mean 4.3) and urban emergency physicians (mean 4.5) but was ranked seventh by rural emergency physicians (mean 3.5). Crowding was perceived as a greater problem as hospital size, ED volume, and the percentage of patients who left without being seen increased, regardless of practice location. CONCLUSION: In this sample of practicing emergency physicians, rural emergency physicians' patient safety concerns differ from those of their urban/suburban counterparts. For urban/suburban emergency physicians, crowding is the greatest safety concern; for rural emergency physicians, consultant availability was the greatest concern. Emergency physicians' greatest concerns are not routinely measured and reported as part of national patient safety benchmarking programs.

Impact of positive pressure ventilation on thoracostomy tube removal.

BACKGROUND: Little data exist examining the impact of positive pressure ventilation on safe thoracostomy tube removal. We sought to evaluate the impact of positive-pressure ventilation (PPV) on recurrent pneumothoraces (PTX) after removal of thoracostomy tubes (TT). METHODS: A retrospective cohort analysis was performed evaluating all trauma patients requiring TT drainage of PTX or hemothoraces during a 3-year period. All chest radiographs before and after TT removal were reviewed to identify PTX recurrence. The principle outcome was recurrent PTX after TT removal. The 95% confidence intervals were calculated to assess for significance. RESULTS: We studied 234 TT removals in 190 patients. One hundred thirty-six (58%) TTs were removed under PPV. PTX recurred in 15 (11%) and 6 (4%) required reinsertion. In 10 patients (7.4%), there was a radiographically stable small PTX before and after removal not requiring TT reinsertion. In comparison, 98 (42%) TTs were removed under spontaneous ventilation. PTX recurred in 16 (16%) and 3 (3%) required reinsertion. There were 25 (25.5%) stable small PTXs before and after removal. The overall recurrence rate difference was -5.3% (confidence interval: -14.8 to 3.5) and reinsertion rate difference was 1.35% (confidence interval: -4.7 to 6.6). CONCLUSIONS: The rate of recurrent PTX or TT replacement after removal is not associated with PPV status. The slightly lower recurrence rate on PPV combined with the smaller proportion of patients with stable small PTX before removal may reflect more careful clinician selection of ideal patients or technique of TT removal among patients on PPV. Prospective data are needed to clarify these associations.

Estimation of total body weight in obese patients.

OBJECTIVE: Knowledge of accurate patient weight is vital to safe air medical transport and critical care. Patient weight is often unknown in emergency settings, and visual estimations have been shown to be inaccurate, especially in obese patients. We hypothesized that a simple formula based on anthropometric measurements could accurately predict patient weight for obese adult men and women. METHODS: Data from cross-sectional anthropometric measurements from the National Health and Nutrition Examination Survey (NHANES) III (1988-1994)-height, leg length, thigh circumference, and mid-arm circumference-were used to estimate patient weight among adult (18 years and older) men and nonpregnant women who weighed at least 100 kg (N = 1,471). Linear modeling was used to develop simple sex-specific linear models to estimate patient weight. Models were derived on a random 67% subset of the original sample and then validated against the remaining 33% to assess the model's predictive capacity. RESULTS: The combination of arm circumference and height yielded the best model: Women: weight (WT) = -64.6 + 2.15 x arm circumference (ARM) + 0.54 x height (HT) (adjusted R(2): 0.55); men: WT = -93.2 + 3.29 x ARM + 0.43 x HT (adjusted R(2): 0.59). Approximately 90% of patient weights were accurately estimated within a 15% error tolerance. CONCLUSION: We have derived and validated simple equations with easy-to-use tables to accurately predict total body weight of obese men and women using only height and arm circumference. These tables may assist air medical transport pilots and medical crews make decisions about which patients may be safely transported, how far they may be transported, how much fuel is required, and how many crewmembers and family members may accompany them.

Impairment and severity: how ED physicians decide to override an impaired patient's refusal.

We attempted to identify the contributions of impairment and illness severity in the decision to treat a patient who refuses treatment using case vignettes. We constructed 4 emergency department (ED)-based case vignettes of adults with varied impairment and illness severity who each refused care. Clinician used a 100-mm visual analog scale (VAS) to assess patient impairment, illness severity, and their willingness to override a patient's refusal (WOPR) of treatment. We used correlation and logistic regression to assess the contributions of impairment and illness severity on WOPR. Thirty-seven ED physicians participated. Increasing impairment (r = 0.80) and illness severity (r = 0.81) correlated with WOPR, and an increase of 10 mm of impairment on the VAS (odds ratio, 2.1; 95% confidence interval, 1.5-3.0) and an increase of 10 mm of severity (odds ratio, 1.5; 95% confidence interval, 1.2-2.0) independently predicted a WOPR. Both degrees of impairment and illness severity impact an ED physician's WOPR.

Emergency department utilization among victims and offenders involved in non-lethal violence.

The medical literature has focused on violent victimization as a public health concern, examining its correlates and evaluating intervention models. However, the emphasis on victimization in this literature overlooks the strong ties between victimization and offending risks outlined in the criminological literature, which may unnecessarily limit the scope of public health efforts to influence violence in our communities. This study examines whether the similarities observed in the criminological literature are evident in a health care setting. More specifically, do victims and offenders exhibit similar health care utilization patterns? We address this question by comparing the emergency department utilization records, criminal histories, and demographic characteristics of a sample of victims and offenders involved in non-lethal violence in Bernalillo County, New Mexico, USA in 2001. Our results suggest that victims and offenders have similar emergency department utilization patterns, with most visits being for injury. Moreover, most victims seen in the emergency department have criminal records that, in many ways, mirror those of offenders. The results suggest that violence intervention programs in public health settings should target both victims and offenders and capitalize on the overlap across these populations in outlining the long term risks of criminal involvement and motivating individual level change.

Computed tomography of the head as a screening examination for facial fractures.

We hypothesized that head computed tomography (CT) is an accurate screening tool for detecting nonnasal midfacial fractures in trauma patients. We retrospectively reviewed charts and official readings for all patients who underwent both head and facial CT scans for trauma at our trauma center between August 2002 and April 2003. The ability of head CT to diagnose nonnasal bone midfacial fractures was compared with that of facial CT using sensitivity, specificity, accuracy, as well as positive and negative predictive values. Agreement was measured with kappa statistics. Ninety-five percent confidence intervals (CIs) were used to assess precision. Ninety-one patient records with head and facial CT scan reports were reviewed. Of the patients, 50 (55%) had nonnasal bone midfacial fractures. The sensitivity and specificity of head CT were 90% (95% CI = 79%-96%) and 95% (95% CI = 84%-99%), respectively; the positive and negative predictive values were 96% (95% CI = 86%-99%) and 89% (95% CI = 76%-95%), respectively. The rate of accuracy was 92%. The agreement was excellent (kappa = 0.85, 95% CI = 0.74-0.96). Head CT was sensitive and specific for identifying nonnasal bone midfacial fractures. An initial head CT alone may limit the need for a Waters view radiography or screening facial CT in detecting injuries.

Do pediatric and adult disaster victims differ? A descriptive analysis of clinical encounters from four natural disaster DMAT deployments.

OBJECTIVES: The differences between pediatric (< or = 17 years of age) and adult clinical field encounters were analyzed from four deployments of Disaster Medical Assistance Teams (DMATs). METHODS: A retrospective cohort review of all patients who presented to DMAT field clinics during two hurricanes, one earthquake, and one flood was conducted. Descriptive statistics were used to analyze: (1) age; (2) gender; (3) severity category level; (4) chief complaint; (5) treatments provided; (6) discharge diagnosis; and (7) disposition. Five subsets of pediatric patients were analyzed further. RESULTS: Of the 2,196 patient encounters reviewed, 643 (29.5%) encounters were pediatric patients. Pediatric patients had a greater number of blank severity category levels than adults. Pediatric patients also were: (1) more likely to present with chief complaints of upper respiratory infections or wounds; (2) less likely to present with musculoskeletal pain or abdominal pain; and (3) equally likely to present with rashes. Pediatric patients were more likely to receive antibiotics, pain medication, and antihistamines, but were equally likely to need treatment for wounds. Dispositions to the hospital were less frequent for pediatric patients than for adults. CONCLUSIONS: Pediatric patients represent a substantial proportion of disaster victims at DMAT field clinics. They often necessitate special care requirements different from their adult counterparts. Pediatric-specific severity category criteria, treatment guidelines, equipment/medication stocks, and provider training are warranted for future DMAT response preparations.