EMS for pediatrics: optimum treatment or unnecessary delay?

Emergency medical services utilisation among febrile children attending emergency departments across Europe: an observational multicentre study

Children constitute 6-10% of all patients attending the emergency department (ED) by emergency medical services (EMS). However, discordant EMS use in children occurs in 37-61% with fever as an important risk factor. We aimed to describe EMS utilisation among febrile children attending European EDs. This study is part of an observational multicentre study assessing management and outcome in febrile children up to 18 years (MOFICHE) attending twelve EDs in eight European countries. Discordant EMS use was defined as the absence of markers of urgency including intermediate/high triage urgency, advanced diagnostics, treatment, and admission in children transferred by EMS. Multivariable logistic regression analyses were performed for the association between (1) EMS use and markers of urgency, and (2) patient characteristics and discordant EMS use after adjusting all analyses for the covariates age, gender, visiting hours, presenting symptoms, and ED setting. A total of 5464 (15%, range 0.1-42%) children attended the ED by EMS. Markers of urgency were more frequently present in the EMS group compared with the non-EMS group. Discordant EMS use occurred in 1601 children (29%, range 1-59%). Age and gender were not associated with discordant EMS use, whereas neurological symptoms were associated with less discordant EMS use (aOR 0.2, 95%CI 0.1-0.2), and attendance out of office hours was associated with more discordant EMS use (aOR 1.6, 95%CI 1.4-1.9). Settings with higher percentage of self-referrals to the ED had more discordant EMS use (p < 0.05).  Conclusion: There is large practice variation in EMS use in febrile children attending European EDs. Markers of urgency were more frequently present in children in the EMS group. However, discordant EMS use occurred in 29%. Further research is needed on non-medical factors influencing discordant EMS use in febrile children across Europe, so that pre-emptive strategies can be implemented. What is Known: •Children constitute around 6-10% of all patients attending the emergency department by emergency medical services. •Discordant EMS use occurs in 37-61% of all children, with fever as most common presenting symptom for discordant EMS use in children. What is New: •There is large practice variation in EMS use among febrile children across Europe with discordance EMS use occurring in 29% (range 1-59%), which was associated with attendance during out of office hours and with settings with higher percentage of self-referrals to the ED. •Future research is needed focusing on non-medical factors (socioeconomic status, parental preferences and past experience, healthcare systems, referral pathways, out of hours services provision) that influence discordant EMS use in febrile children across Europe.

Early evaluation and resuscitation of the pediatric trauma patient

Trauma is the leading case of death for children in the United States. Effective initial resuscitation of pediatric trauma patients can reduce mortality. Guidelines have been developed to facilitate patient care in a systematic and productive manner. Advances have been made in both diagnostic and therapeutic methods. The evaluation and treatment of trauma patients will continue to engage pediatric surgeons as efforts in trauma prevention become more successful.

Practical points in evaluation and resuscitation of the injured child

The ultimate goal of resuscitation of an injured child is delivery of oxygen to intracellular organelles in order to maintain aerobic metabolism. This can be obtained by following ATLS protocols with immediate attention to the "ABCDE's" and compulsive reevaluation of the adequacy of resuscitation maneuvers. After stabilization, seriously injured children should be transferred to trauma centers with established pediatric trauma programs utilizing preexisting transfer agreements and protocols. Pediatric trauma is indeed a team endeavor, requiring the coordinated expertise and teamwork of prehospital EMS providers, trauma team members, and the pediatric trauma and rehabilitation centers. With careful and compulsive communication and coordination, injured children can be returned to their families in better mental and physical condition than pre-injury with reasonable expectation of a full and productive life.

Pediatric pre-hospital advanced life support care in an urban setting

OBJECTIVE

To describe pediatric advanced life support (PALS) in a single urban environment and clarify educational priorities for ALS pre-hospital providers and pediatric medical control physicians.

METHODS

Retrospective observational review of all pediatric pre-hospital PALS transport and medical control records of the two-tiered, unified, municipal emergency medical service of the City of Boston (catchment area 590,000) over a 1-year period.

RESULTS

Of the 555 pediatric patients receiving ALS transport, 38% were for respiratory emergencies, 24% for nonrespiratory medical emergencies, 19% for traffic-related blunt trauma, and 10% for penetrating trauma. Two percent involved cardiac arrests. The most frequent procedures performed were intravenous (IV) cannulation (n = 184, 33%), bag-mask ventilation (n = 28, 5%) and intubation (n = 15, 3%). Intraosseous access was only performed in three patients (0.5%). Fifty ALS providers in the EMS system averaged pediatric IV cannulation 3.7 times, intubation 0.3 times, and intraosseous access 0.06 times per provider per year. On-line medical control was requested in 28 % of PALS transports. The chief complaints managed by medical control closely mirrored the distribution of all ALS transports. The most frequent medication ordered by on-line medical control was additional nebulized albuterol after standing orders (off-line medical control) had been exhausted.

CONCLUSIONS

A limited number of chief complaints make up the majority of PALS transports. Initial and continuing education for ALS providers needs to reflect the importance of these critical entities. Education for urban pre-hospital providers should reflect that certain procedures will be only executed every few years (eg, pediatric intubation) or once in the career of an ALS pre-hospital provider (eg, intraosseous access). With a limited amount of pediatric teaching time, paramedic education will have to strike a careful balance between teaching about the chief complaints most frequently encountered and teaching rare, high-risk procedures that could provide maximal support for the uncommon critically ill child. On-line medical control physicians need to be prepared to direct and support the management by ALS pre-hospital providers for the chief complaints most frequently seen in pediatric patients.

Complications of emergency tracheal intubation in severely head-injured children

A high incidence of unsuccessful attempts and complications has been reported when emergency tracheal intubation (ETI) is performed outside the hospital in severely injured children. The aim of this prospective series was to analyse the incidence and related risk factors of complications of emergency tracheal intubation. The time to complete successful ETI and occurrence of incidents, e.g. cough reflex, hypoxia or spasm were related to the experience of the physician performing intubation and the use of drugs to facilitate ETI. The incidence of hypoxia, hypercarbia, postintubation complications such as extubation stridor and long-term sequelae were noted. Of the 188 children, 78% were successfully intubated at the site of the accident, 10% upon arrival at a local hospital from where they were secondarily transferred and 12% upon admission to our trauma centre. The most severely injured children were intubated in the field in 98% of cases without failure, nor life-threatening complications related to ETI. The experience of the operator influenced the number of attempts and the time to complete successful intubation. Immediate incidents were noted in 25% of children, e.g. cough in 18%. The regimen of drugs, but not level of consciousness, influenced the incidence of immediate incidents; without drugs, more than 67% experienced incidents. Early tracheal intubation and controlled ventilation resulted in adequate ventilation upon arrival (mean PaO2 of 35.8+/-24 kPa, mean PaCO2 of 4.35+/-1 kPa). Long-term complications, including transient stridor upon extubation in 33% of the cases, and laryngeal granuloma or tracheal stenosis, were comparable to those in other series. ETI in shocked patients and pulmonary infection in hospital, but not the technique of ETI, increased the risks of long-term complications. Emergency tracheal intubation can be performed safely in the field, and results in adequate ventilation during transportation of severely injured children, provided that it can be performed by trained physicians using adequate drugs to facilitate intubation.

Repeat ambulance use by pediatric patients

OBJECTIVE

To compare pediatric patients transported by ambulance on more than one occasion (repeat) with those transported only once.

METHODS

The authors analyzed pediatric (patient < 21 years old) transports for 1992-1995 by the ambulance service that provides 99% of transports for a non-innercity metropolitan area. Repeat transports were compared with single transports with regard to patient age, gender, chief complaint, and payment source.

RESULTS

There were 17,448 transports involving 15,168 patients. Nearly half (49.0%) of the repeat transports involved patients in the oldest age category, 17 to 20.9 years, contrasted with 38.0% of single transports (p < 0.00001). Females comprised 51.4% of the repeat transports and 48.5% of the single transports (p = 0.0008). Traumatic complaints accounted for one-third (33.0%) of the repeat transports and half (51.1%) of the single transports (p < 0.0001). Chief complaints of the patients with repeat transports were more likely to be seizure, assault, abdominal pain, and respiratory problems, and less likely to be falls and motor vehicle-related complaints, than chief complaints of the patients with single transports (p < 0.0001). More than one-third (39.0%) of the repeat transports were funded by Medicaid, in contrast with 19.8% of the single transports (p < 0.0001).

CONCLUSIONS

Compared with single transports, repeat transports were more likely to involve patients more than 16 years of age, female, and with a chief complaint of seizure, assault, abdominal pain, or respiratory distress, and more likely to be funded by public insurance (Medicaid). Repeat pediatric transports warrant further investigation. This information may be useful in designing interventions targeted at reducing emergencies and hence ambulance use.

Emergency medical services for children: a general pediatrician's perspective

The EMSC movement is still in its infancy, and there is much that remains to be done. The primary care pediatrician plays a major role in the EMSC system and should continue to advocate for efficient, high-quality pediatric emergency care. In summary, there are several ways that the office-based pediatrician can and should become involved with EMSC: 1. Pediatricians should emphasize safe and injury prevention at each health maintenance visit throughout a child's life. 2. Pediatricians should encourage all parents to become certified in BLS/CPR. Ideally, training in CPR should be provided during prenatal and childbirth classes. 3. Pediatricians should advocate for injury prevention and safety campaigns in their communities. They can also become involved with efforts to develop legislation dealing with issues in injury prevention and safety. 4. Pediatricians should ensure that all children receive the appropriate immunizations. 5. Pediatricians need to maintain office emergency preparedness. All office personnel should maintain certification in BLS as a minimum and ideally, PALS. Equipment used for pediatric resuscitation should be available and functional. Monthly mock codes should be scheduled to ensure that all personnel clearly know their roles and responsibilities in the event of an emergency. 6. Pediatricians should maintain their skills in emergency pediatrics. In addition, they should maintain certification in PALS. Continuing medical education (CME) workshops and conferences in emergency pediatrics are available throughout the year. Also, pediatricians can maintain their airway management skills by practicing endotracheal intubation in the operating room setting. 7. Pediatricians must become familiar with the prehospital care providers, EDs, and transport services in their communities. Association with a pediatric intensive care unit at a tertiary care center would also be beneficial. 8. Pediatricians must be available for consultation to local EDs. They must realize that, in many instances, they may represent the physician who is most experienced with caring for the critically ill or injured child. 9. Pediatricians can serve as medical advisors to the EMS systems in their communities. 10. Pediatricians should stay well informed on issues pertaining to EMSC.

Adult versus pediatric prehospital trauma care: is there a difference?

BACKGROUND

Management of the injured child in the prehospital setting continues to be debated. Issues raised in the literature include time spent on scene, skill maintenance and performance, and reported poorer outcomes compared with adults.

METHODS

Retrospective 2-year review of all pediatric (n = 232) and adult (n = 3,375) patients treated by a single emergency medical services agency and transported and admitted to a Level I trauma center. Patients were divided into two groups, pediatric (age 0 to 12 years) and adult (age >12 years) and further stratified into three Injury Severity Score subgroups; 1 to 15, 16 to 25, and more than 25.

RESULTS

There were no significant differences in scene time for any of the groups. The percentage of patients with intravenous access or endotracheal intubation in the field and the mean Injury Severity Score were not different for the moderate or severely injured groups, although in the minor trauma group fewer pediatric patients had intravenous access or intubation performed. There were no differences in outcome for any of the groups.

CONCLUSION

Paramedics are able to provide pediatric trauma patients a level of care comparable to that provided adult patients with similar outcome.

Prehospital emergency care for children at school and nonschool locations

OBJECTIVE

The purpose of this study was to ascertain whether school-based emergency medical services (EMS) incidents are different from nonschool-based EMS incidents for school-aged children.

METHODS

We examined South Dakota EMS incident reports involving children ages 5 to 18 years old from 1994 through 1996 (n = 12603). Patient characteristics, dispatch reason, primary medical complaint, injury type, contributing factor of injury, and performed interventions were analyzed.

RESULTS

During the study period, there were 140455 total EMS incident reports, of which 12603 (9.0%) were for school-aged children. EMS dispatches to a school represented 755 (6.0%) of all EMS incidents for school-aged children. The number of school-based EMS incidents was highest at the beginning of the school year, whereas the number of nonschool-based EMS incidents was highest during the summer months. School-based EMS incidents peaked at noon, whereas nonschool-based EMS incidents peaked after school. For both locations, the average age of the patient was 14 years old. The dispatch reason for school-based EMS incidents differed from those for nonschool-based EMS incidents. The top three school-based EMS dispatch reasons were falls (36.2%), other trauma (27.0%), and medical illness (24.5%). Motor vehicle crashes (30.8%), medical illness (26.2%), and other trauma (11.4%) were the leading nonschool-based EMS dispatch reasons. Injuries accounted for a significantly greater proportion of school-based than nonschool-based EMS incidents (70.7% vs 62.6%). Excluding pain, the most frequent type of injury was a fracture or dislocation in school-based EMS incidents and open soft-tissue injury in nonschool-based EMS incidents. A total of 11 students sustained an injury resulting in paralysis. The body region that was most commonly injured was a lower extremity (23%) in school-based incidents, whereas the head was the most commonly injured body region in nonschool-based incidents (20%). Sports were the largest contributing factor in school-based incidents, whereas alcohol/drug use was the largest contributing factor in nonschool-based EMS incidents among school-aged children. A medical illness was the primary complaint for 206 (27.3%) of the school-based incidents and 3599 (30.4%) of the nonschool-based incidents. The chief medical complaints were breathing difficulty (18.4%), seizure (16%), and other illness (12.3%) for school-based EMS incidents. Other illness (20.0%), breathing difficulty (13.7%), and abdominal pain (12.0%) were the chief complaints for nonschool-based EMS incidents. Treatment was rendered by the EMS provider in 11 753 (93.3%) of the incidents. Frequency of EMS intervention was the same for school-based incidents and nonschool-based incidents. Transportation to a medical facility was more frequent in school-based incidents than nonschool-based incidents.

CONCLUSION

Compared with nonschool-based EMS incidents, school-based EMS incidents are more often attributable to injury, more often related to a sports activity, and more often result in transport to a medical facility. Understanding the characteristics of school emergencies resulting in an EMS dispatch may help emergency medical providers be better prepared for school-based incidents. School personnel may benefit from increased knowledge about the EMS system and EMS programs. In addition, EMS incident data may provide useful information about school-based injuries and may provide a means for injury surveillance.

Disturbing trends: the epidemiology of pediatric emergency medical services use

OBJECTIVE

To compare pediatric ambulance patients transported for chief complaints of suicide, assault, alcohol, and drug intoxication (SAAD) with pediatric patients transported for all other chief complaints.

METHODS

An out-of-hospital database for the primary transporting service in an urban area was analyzed for patients 0-20 years of age from 1992 to 1995. Chief complaints by age, gender, and billing status were analyzed.

RESULTS

There were 17,722 transports. The SAAD group comprised 14.9% of all transports (suicide attempt 1.6%, assault 5.9%, alcohol intoxication 3.2%, and drug abuse 4.2%). The proportion of transports due to SAAD increased with age: 0-11-year-olds (4.2%); 11-16-year-olds (17.5%); and 17-20-year-olds (20.3%) (p = 0.0001). Genders were equally represented in the overall group, while males comprised 52.6% of the SAAD transports (p = 0.032). In the SAAD group, the majority of transports for assaults (55.9%) and alcohol (58.8%) involved males, while females were the majority in transports for suicide (52.3%) and drug abuse (66%) (p = 0.0001). Reimbursement sources differed, with those in the SAAD group less likely to be reimbursed by private or public (Medicaid, government) insurance (p < 0.0001) compared with the overall group.

CONCLUSIONS

A substantial proportion of pediatric emergency medical services transports are for high-risk conditions. This patient population differs from the overall group by age distribution and reimbursement source.

Prehospital care and survival of pediatric patients with blunt trauma

BACKGROUND

The aim of this study was to compare the outcome of severe blunt trauma in children receiving prehospital care from either physician-staffed advanced life support (ALS) units, or from basic life support (BLS) units staffed by emergency medical technicians.

METHODS

The records of 288 children with severe blunt trauma who required intensive care in the regional level 1 trauma center or who died from their injuries were analyzed retrospectively. Patients were excluded if resuscitation at the scene was not attempted, if the level of prehospital care was unspecified, or if arrival at the level 1 trauma center was delayed beyond 150 minutes. Seventy-two patients met the inclusion criteria of BLS-, and 49 the criteria of ALS-prehospital care.

RESULTS

A reduced mortality rate (22.4% v 31.9%) was seen in the ALS group, which was more apparent in a "salvageable but high-risk" subgroup, characterized by Glasgow Coma of Scale 4 through 8, Pediatric Trauma Score of 0 through 5, and Injury Severity Score (ISS) of 25 through 49. However, a statistically significant difference was only seen when trauma severity was evaluated by the ISS.

CONCLUSION

An improved outcome in children with severe blunt trauma has been demonstrated when prehospital care is provided by physician-staffed ALS units compared with BLS units.

Epidemiology of pediatric EMS practice: a multistate analysis

OBJECTIVE

To describe the epidemiology of pediatric emergency medical services (EMS) practice in a large patient population from several geographic areas.

DESIGN

Retrospective computer analysis of EMS databases from four states using a common data set and analysis system.

SETTING

Pennsylvania, Tennessee, Mississippi, and Nevada (except Clark County), 1990 through 1992.

METHODS

All patient-care reports of patients 14 years old and younger were extracted from the EMS databases and analyzed for the following factors: age, gender, date, elapsed prehospital times, incident type, mechanism of injury, call disposition, illness or injuries encountered, severity of illness/injury (by abnormal vital signs), and basic life support (BLS) and advanced life support (ALS) treatment delivered.

RESULTS

A total of 1,512,907 patient care reports were reviewed. Those of 61,132 children were extracted for analysis. These children comprised about 4% of prehospital responses. Male subjects predominated (56%), and children aged 7 through 14 years represented 46% of cases. Most calls occurred in the evening and daylight hours. Children were transported by ambulance in 89% of cases, and care was refused in 7.7%. Mean response time was 9 +/- 16 minutes, mean scene time 12 +/- 14 minutes, and mean transport time 14 +/- 20 minutes. Traumatic incidents predominated at 42%, with motor vehicle accidents and falls the most common mechanisms. Blunt injuries accounted for 94% of trauma, whereas respiratory problems, seizures, and poisoning/overdose were the most common medical problems. Vital signs were obtained in 56% of cases. Abnormal vital signs were noted in 21% of these, and the presumptive causes were similar in distribution to those of the general population, with the addition of cardiac arrest. The most commonly used treatments were spinal immobilization, oxygen administration, intravenous access and several ALS medications. An ALS capability was available in more than half the runs, but ALS treatment was delivered in only 14% of those cases. Outcome data were not available.

CONCLUSION

This multistate analysis of pediatric EMS epidemiology confirms findings reported in smaller regional studies, with several exceptions. Excessive scene times were not noted. Few children had serious disorders as evidenced by abnormal vital signs. An ALS treatment, when available, was used infrequently. These findings have implications for EMS planners and educators.

Pediatric patients requiring CPR in the prehospital setting

STUDY OBJECTIVE

To determine the outcome of pediatric patients with prehospital cardiopulmonary arrest.

DESIGN

Chart review of all patients with prehospital cardiopulmonary arrest who were subsequently admitted to a pediatric emergency department from January 1988 to January 1993. Cardiopulmonary arrest was considered to have been present if assisted ventilation and chest compressions were performed on an apneic, pulseless patient.

SETTING

Pediatric ED.

PARTICIPANTS

Pediatric patients in prehospital cardiac arrest.

RESULTS

In all, 95 patients were identified. Fifty-six had initial hospital care at the pediatric ED (primary patients). The remaining 39 were transported to the pediatric ED after initial care of another institution (secondary patients). Forty-one percent of patients were younger than 1 year. Most arrests were respiratory in origin; asystole was the most common dysrhythmia. Fifteen patients (27%) survived to discharge. Fourteen of the survivors had return of spontaneous circulation before ED arrival. Thirty-three patients were in arrest on ED arrival; in 16 (48%) of these, return of spontaneous circulation subsequently developed in the ED, and 1 survived to discharge. Two survivors, including the survivor with return of spontaneous circulation in the ED, had severe neurologic sequelae. Ten (26%) of the secondary patients survived. All survivors had return of spontaneous circulation before arrival in the ED. Two survivors had severe neurologic sequelae.

CONCLUSION

Most successfully resuscitated pediatric arrest victims are resuscitated in the prehospital setting and do not suffer severe neurologic injury. Most patients who present to the ED in continued arrest and survive to discharge have severe neurologic injury.

A prospective in-field comparison of intravenous line placement by urban and nonurban emergency medical services personnel

STUDY HYPOTHESIS

Emergency medical services personnel are highly proficient at rapid i.v. line placement in the prehospital setting, with little difference between urban and nonurban areas in a geographically diverse state.

DESIGN

Prospective evaluation by an in-field observer of timing, sequence, success rates, and patient characteristics for IV line placement by prehospital personnel for 1 year.

SETTING

Twenty advanced life support agencies from all four emergency medical service regions of Arizona.

PARTICIPANTS

Fifty-eight patients encountered by participating emergency medical service agencies who had at least one i.v. line placement attempt in the prehospital setting.

RESULTS

Urban agencies encountered 24 patients (41.4%), and nonurban agencies encountered 34 (58.6%). Fifty-seven of 58 patients (98.3%) had at least one successful i.v. line started before arrival at a hospital. All 24 urban patients and 33 of 34 nonurban patients (97.1%) had a successful i.v. line attempt (P = .586, power = .09). In the urban setting, 24 of 31 attempts (77.4%) were successful, and in the nonurban setting 35 of 52 attempts (67.3%) were successful (P = .464, power = .28). Mean i.v. line procedure intervals were 1.6 minutes in urban and 1.4 minutes in nonurban settings (P = .408, power = .7). Thirty of 31 i.v. line attempts (96.7%) were completed in less than 4 minutes in urban systems, and 49 of 52 IV line attempts (94.2%) were completed in less than 4 minutes in nonurban systems (P = .520, power = .13). Mean i.v. line procedure intervals were 1.3 minutes for successful attempts and 2.1 minutes for unsuccessful ones (P = .015). Mean i.v. line procedure intervals for on-scene attempts were 1.3 minutes compared with 2.0 minutes for attempts during transport (P = .005). On average, i.v. line attempts in trauma patients took only 1.0 minutes compared with 1.7 in medical patients (P = .017).

CONCLUSION

Personnel in the 20 advanced life support agencies studied were extremely adept (rate of 98.3%) at obtaining i.v. line access in the prehospital setting. The time required to complete i.v. line placement was very short, and little difference was noted between urban and nonurban providers. I.v. procedure intervals were shorter for successful attempts, on-scene attempts, and attempts in trauma patients compared with their counterparts.

Determinants of on-scene time in injured patients treated by physicians at the site

INTRODUCTION

The controversy surrounding the use of advanced life support (ALS) for the pre-hospital management of trauma pivots on the fact that these procedures could cause significant and life-threatening delays to definitive in-hospital care. In Montreal, Québec, on-site ALS to injured patients is provided by physicians only. The purpose of this study was to identify parameters associated with the duration of scene time for patients with moderate to severe injuries treated by physicians at the scene.

HYPOTHESIS

The use of on-site ALS by physicians is associated with a significant increase in scene time.

METHODS

A total of 576 patients with moderate to severe injuries are included in the analysis. This group was part of a larger cohort used in the prospective evaluation of trauma care in Montreal. Descriptive statistics, analysis of variance, multiple linear regression, and multiple logistic regression techniques were used to analyze the data.

RESULTS

Use of ALS in general was associated with a statistically significant increase in the mean scene time of 6.5 min. (p = .0001). Significant increases in mean scene time were observed for initiation of an intravenous route (mean = 6.6 min., p = .0001), medication administration (mean = 5.7 min., p = .0001), and pneumatic antishock garment (PASG) application (mean = 9.3 min., p = .03). Similar differences were observed for total prehospital time. A significant increase in the relative odds for having long scene times (> 20 min.) also was associated with the use of ALS. This level of scene time was associated with a significant increase in the odds of dying (OR = 2.6, p = .009).

CONCLUSION

This study shows that physician-provided, on-site ALS causes significant increase in scene time and total prehospital time. These delays are associated with an increase in the risk for death in patients with severe injuries.

Fatal childhood injury patterns in an urban setting

STUDY OBJECTIVE

To describe fatal childhood injury patterns in an urban county and evaluate the use of the emergency medical services system.

DESIGN

Retrospective chart review of medical examiner files, prehospital and hospital records, and police and fire personnel reports.

SETTING

Milwaukee County, Wisconsin, an urban county with a population of approximately 1 million.

PARTICIPANTS

All children 15 years old or younger who sustained a fatal injury in 1989 or 1990 (70).

RESULTS

House fires were the leading cause of death by injury (34%), followed by firearms (19%), and drowning (11%). Motor vehicle occupant deaths occurred less frequently (7%). One-third of deaths were homicides (48% firearms and 30% assault). Twenty-four percent of deaths were pronounced at the scene, 12% were dead-on-arrival (no emergency department resuscitative efforts), and 37% were dead-on arrival ED resuscitations. Only 27% of victims survived to become inpatients (84% died within 72 hours). Mean scene time (16.1 +/- 7.9 minutes), transport time (9.5 +/- 5.1 minutes), and success rates for prehospital peripheral IV insertion (72%), endotracheal intubation (91%), and intraosseous line (86%) were not significantly different among those who were dead-on-arrival, dead-on-arrival failed resuscitations, or eventual inpatients.

CONCLUSION

Fatal childhood injury patterns in this urban setting differed from reported national injury patterns. This study found a higher percentage of deaths from fire, gunshot wounds, and homicides but a lower percentage of motor vehicle-related deaths. Prevention strategies need to address the injury patterns of a particular community. Only a small percentage of victims survived to receive inpatient care following their injuries, suggesting that primary prevention of injury may be the most effective intervention.

Prospective validation of a new model for evaluating emergency medical services systems by in-field observation of specific time intervals in prehospital care

STUDY OBJECTIVE

To develop and validate a new time interval model for evaluating operational and patient care issues in emergency medical service (EMS) systems. DESIGN/SETTING/TYPE OF PARTICIPANT: Prospective analysis of 300 EMS responses among 20 advanced life support agencies throughout an entire state by direct, in-field observation.

RESULTS

Mean times (minutes) were response, 6.8; patient access, 1.0; initial assessment, 3.3; scene treatment, 4.4; patient removal, 5.5; transport, 11.7; delivery, 3.5; and recovery, 22.9. The largest component of the on-scene interval was patient removal. Scene treatment accounted for only 31.0% of the on-scene interval, whereas accessing and removing patients took nearly half of the on-scene interval (45.8%). Operational problems (eg, communications, equipment, uncooperative patient) increased patient removal (6.4 versus 4.5; P = .004), recovery (25.4 versus 20.2; P = .03), and out-of-service (43.0 versus 30.1; P = .007) intervals. Rural agencies had longer response (9.9 versus 6.4; P = .014), transport (21.9 versus 10.3; P < .0005), and recovery (29.8 versus 22.1; P = .049) interval than nonrural. The total on-scene interval was longer if an IV line was attempted at the scene (17.2 versus 12.2; P < .0001). This reflected an increase in scene treatment (9.2 versus 2.8; P < .0001), while patient access and patient removal remained unchanged. However, the time spent attempting IV lines at the scene accounted for only a small part of scene treatment (1.3 minutes; 14.1%) and an even smaller portion of the overall on-scene interval (7.6%). Most of the increase in scene treatment was accounted for by other activities than the IV line attempts.

CONCLUSION

A new model reported and studied prospectively is useful as an evaluative research tool for EMS systems and is broadly applicable to many settings in a demographically diverse state. This model can provide accurate information to system researchers, medical directors, and administrators for altering and improving EMS systems.

The impact of injury severity and prehospital procedures on scene time in victims of major trauma

STUDY OBJECTIVE

To evaluate the relationship among injury severity, prehospital procedures, and time spent at the scene by paramedics for victims of major trauma.

DESIGN

Retrospective study of 98 consecutive patients with an Injury Severity Score of more than 15 who were brought to a trauma center by fire department paramedics.

SETTING

A medium-sized metropolitan emergency medical services (EMS) system and a Level I trauma center.

RESULTS

There were 66 male and 32 female patients with a mean age of 34 years. Thirty-two patients (32.6%) died. Blunt and penetrating trauma accounted for 68.4% and 31.6% of cases, respectively. Thirty-three patients (33.7%) had successful advanced airway procedures, and 81 (82.7%) had at least one IV line started in the field. Analysis of scene time, prehospital procedures, and injury severity parameters revealed that more procedures were performed in the field on the more severely injured cases; that despite this, there was a trend toward shorter scene time for more severely injured patients; and that there was a mean scene time of 8.1 minutes. This is the shortest scene time reported to date for prehospital trauma care in an EMS system.

CONCLUSION

Extremely short scene times can be attained without foregoing potentially life-saving advanced life support interventions in an urban EMS system with strong medical control. In such a system, the most severely injured victims may spend less time at the scene although more procedures are performed on them.

A child-oriented emergency medical services system

Although the principles of emergency care may be relatively easy to state, it is their promulgation that is so difficult. The development of EMS-C is the challenge. How do we take these principles of preserving children's lives and translate them into services for everyone who needs them? How do we organize a large, diverse health care system which will be responsive to this group of patients in need? How do we prioritize pediatric emergency care among the many other funding needs, both medical and nonmedical? The answer lies with the initiative and advocacy of each of us as child advocates. Providing all the aforementioned elements of the EMS-C will save children's lives. These are lives which are usually responsive to therapy, uncomplicated by interlocking disease states, and filled with potential for future achievement. The challenge is ours.

Emergency medical services for children and pediatric trauma system components

The concept of an emergency medical service for children (EMS-C) is new. Although adult EMS systems exist in every region of the United States, the needs of the child suffering from acute injury or illness have not been previously addressed. The development and incorporation of an EMS-C system into the existing adult EMS system is the most time- and cost-effective method to achieve efficient care for the acutely injured or ill child. The components of an EMS-C system include system design, education, prevention, standards of care, research and development, quality assurance, and funding.

Factors contributing to paramedic onscene time during evaluation and management of blunt trauma

Prehospital patient management decisions are complex because the traumatized patient population is heterogeneous with respect to demographics, mechanism of injury, physiological response to injury, and time from injury to medical care. One hundred and nine blunt trauma patient evaluations by paramedics in a county-wide semirural emergency medical services (EMS) system were analyzed to determine paramedic time on the scene and the factors that might influence onscene time. Onscene time linearly correlated with a prolonged transport time. Hemodynamic and respiratory dysfunction were also associated with increased onscene time. Mean onscene time was not significantly different between high (greater than 13) and low (less than or equal to 13) trauma score (TS) groups, although patients with low TS did receive more interventions (more intravenous lines, more frequent intubation, and more frequent pneumatic antishock garment use). Similar results were found when high (greater than 10) and low (less than or equal to 10) Glasgow Coma Scale (GCS) groups were compared. The correlation of emergency department TS with initial prehospital TS and onscene time demonstrated a small improvement in TS with increasing onscene time for the patient with an initial TS greater than or equal to 13. However, patient groups with either a low TS or a low GCS score showed no significant improvement in TS with increasing onscene time. Without a strict management algorithm, paramedics use a variety of cues to guide their actions during the onscene management of blunt trauma. Future studies should address the impact of strict management algorithms on onscene time and ultimate patient outcome.

Prehospital advanced life support vs "scoop and run" in trauma management

The question of attempted field stabilization versus the "scoop and run" approach in the management of trauma has no clear-cut answer. We have long been supporting a complex EMS system based on a hope for its effectiveness, rather than concrete proof. The data we need are not currently available. To make any scientific conclusions, we must have data generated from well-controlled, prospective, randomized studies. This involves a question of ethics. There exists a strong general feeling that randomizing prehospital care is unethical. We have reached a point where full resuscitative effort at the scene is not only expected by the general public, but anything less is considered inadequate by much of the medical community. Nevertheless, because the true influence of prehospital treatment is unknown, shouldn't the patient also be given the benefit of not receiving on-site stabilization effort in view of its potential harm? Prospective randomized studies undoubtedly will invite criticism. However, this is the only way to generate any meaningful conclusions. The essential questions remain unanswered. Can criticality be reliably assessed in the field, and if so, will advanced life support serve to reduce this criticality, or only further delay appropriate care?

Epidemiology of pediatric prehospital care

Very few studies about prehospital care of pediatric emergencies have been published. With new interest in emergency care of the pediatric population demonstrated by the development of Pediatric Advanced Life Support and Advanced Pediatric Life Support, it is imperative to have data that define the different types of problems encountered in the prehospital care setting and their outcomes. Prehospital assessment forms were reviewed retrospectively over a consecutive 12-month period beginning August 1, 1983. Patients under 19 years of age were studied in a service area with a population of 557,700. A total of 3,184 forms were analyzed, representing approximately 10% of all ambulance runs. This contrasts sharply with the fact that the pediatric age group represents 32% of the population. The major users were the youngest and the oldest of the pediatric population. Of the cases, 54.4% were in the trauma category. The largest trauma group was motor vehicle accidents in the adolescent age group. Male patients predominated in the trauma cases. Medical disorders were the major reason for prehospital care in the very young. The demand for emergency medical services (EMS) occurred mainly during the summer months and on weekends. More than 50 percent of all EMS pediatric cases occurred during the hours of 1:00 PM to 9:00 PM. Advanced life support was associated with prolonged on-scene time and had a relatively low use and success rate in the younger pediatric population. Resuscitation of 23 cases of pediatric prehospital arrest resulted in no survivors to hospital discharge. The appropriateness of prolonged time spent on scene (mean of 18.3 minutes in 1,196 cases) for prehospital pediatric emergencies requires further evaluation.

Community hospital management of pediatric emergencies: implications for pediatric emergency medical services

The ability of emergency physicians in a general community hospital to manage pediatric patients was evaluated. Essential diagnostic and therapeutic procedures performed in the emergency department on pediatric patients transferred for admission to a tertiary care center were compared with those initially performed on the same patients by the pediatricians and residents of the tertiary care center. The overall care rendered by the emergency physicians correlated well with that of the referral center. Ninety one per cent of diagnostic studies and 96% of therapeutic interventions were performed in the emergency department. Implications for the care of seriously ill pediatric patients by emergency physicians and the role of community hospital emergency departments in pediatric emergency medical services (EMS) systems are discussed.