In order to identify the study designs andthe type of pre-trial peer review in published EMS research, we reviewed three refereed emergency medicine journals during the period from 1985 through 1988. All original scientific manuscripts utilizing human subjects in prehospital care were analyzed. Ninety-six issues were examined, and 79 manuscripts met the criteria for analysis. The research design was cross-sectional in 7.5%, retrospective in 51%, and prospective in 41.5%. Pre-trial peer review had been sought in nine (11%). Each was performed by a hospital or university-based Institutional Review Board (IRB). Only four (5%) manuscripts contained statements about pre-trial peer review. All reviewed trials were prospective in design (9/33, 27%). A follow-up telephone survey of the authors of the non-reviewed prospective trials indicated that 96% were unaware of the potential need for pre-trial review, 16% anticipated difficulty obtaining approval from traditional IRB committees, and 11% feared that the protocol would be interfered with by the review committee.

We conclude that 92.5% of the current published EMS research is retrospective or prospective in design, and that pre-trial peer review is not obtained in the majority of prehospital EMS research. Guidelines should be developed to educate EMS researchers about the need for and the value of pre-trial peer review. Journal editors should clearly state and enforce policies about manuscripts lacking information about pre-trial peer review when human subjects are involved.

This study describes a series of mechanisms to alleviate overcrowding of hospital emergency departments by distributing critically ill patients among facilities with available resources. The initial mechanism, which was based on the availability of critical care beds, was used successfully between 1982 and 1986, but had to be abandoned when several new factors caused the availability of emergency department resources to become the limiting factor. A second approach, based on the availability of critical care and emergency department resources, produced limited success over a one-year period. The system currently in use, implemented in 1989, includes a distribution system based on the availability of emergency department resources and critical care beds, as well as a mechanism for diversion of ambulances to hospitals in neighboring counties at times of extremely high utilization. This experience demonstrates that mechanisms for planning the distribution of emergency and critically ill patients have universal applicability.

Verification of endotracheal tube (ETT) location in prehospital setting and the emergency department (ED) is a challenging task. Unrecognized esophageal intubations with potentially dangerous consequences may occur more frequently in these environments than in less hectic settings. To evaluate the capabilities of a portable, non-directable, fiberoptic bronchoscope (Visicath; Saratoga Medical, Saratoga, Calif., USA) to detect appropriate ETT placement, a prospective series of 22 intubated prehospital, air-medical, or ED patients underwent fiberoptic verification (FOV) of a newly placed ETT. Each patient was intubated under urgent circumstances. The time required for FOV, ETT location, the relative difficulty of intubation, and the changes in management as a result of FOV were recorded. A total of 24 FOVs were performed, twenty-one tracheal (88%), and two esophageal (8%) intubations were identified. Position could not be identified in one case (4%). FOV confirmed placement in 23 intubations (96%) in less than 25 seconds. Seven intubations (29%) were judged to be “difficult.” FOV resulted in five minor changes in management (22%) and was the sole confirmation method for five intubations. We conclude that fiberoptic verification is a promising method of ETT position in air-medical and ED intubations.

The Basic Trauma Life Support (BTLS) course was developed to teach prehospital providers a rapid, prioritized approach to assess and manage the trauma victim. Little data currently are available relative to the retention of the cognitive and psychomotor skilk taught in the course. To examine this question, thirteen paramedics were retested on identically moulaged trauma scenarios and written examinations 14–16 months after initial training in BTLS. No advanced notification of the re-test was given. Written test scores decreased from an initial mean of 93.0±6.6 to a mean of 64.9±11.8 (p<0.001) 14–16 months later. Similarly, the trauma scenario test scores declined from 71.6±10.4 to 61.3±16.2 (p<0.05). The results suggest that there is significant loss of both didactic information and practical skills from the BTLS course 14–16 months after training. Frequent BTLS refresher training in the form of supplemental readings, lectures, and repeated exposures to trauma simulations is needed.

Transcutaneous cardiac pacing (TCP) is a promisingprehospital intervention, but there are little data available regarding protocols to improve patient tolerance to TCP. A 50:50 nitrous oxide:oxygen analgesic mixture aho is a commonly employed prehospital intervention. In this randomized, prospective study, we compared the discomfort experienced by 18 healthy subjects when paced in two triah at the capture threshold: one following breathing of a 50:50 nitrous oxide:oxygen mixture; and the second breathing only room air. Discomfort was rated on an analog scale from 1 (minimal discomfort) to 10 (severe pain). Of the 18 subjects, 15 (83%) reported that nitrous oxide improved the tolerance to pacing at capture threshold. The median pain scores at capture threshold in the nitrous oxide and room air group were 3.8 and 5.0 respectively (P<.05). Nine of the subjects tolerated TCP for the maximum allotted time of 30 seconds in each trial; six tolerated TCP for a longer time period in the nitrous oxide trial; three tolerated TCP longer in the room air trial. These data suggest that inhalation of a 50:50 nitrous oxide:oxygen mixture may improve tolerance to TCP in the conscious patient.

Terrorism can be considered a form of low-intensity conflict. It results from extreme reactions to sociopolitical conditions. These reactions, through a variety of intellectual and emotional processes, are manifest as overt acts of violence. Terrorism includes acts by individuals or organizations which seek to change political or social conditions, make political or ideological statements, or obtain funds for sustaining ongoing terrorist or revolutionary campaigns. Terrorist incidents are increasingly prevalent. Often, they involve loss of lives and mass casualties and have special medical dimensions. As such, the role of EMS in terrorist incidents needs to be defined clearly.

Seizures are a common pediatric problem encountered by prehospital personnel. Status epilepticus is defined as seizure activity lasting longer than 15 minutes, or recurrent seizures that occur close together without a period of consciousness between ictal periods. It is estimated that 60,000 to 160,000 cases of status epilepticus occur each year within the United States. Prior to 1960, status epilepticus carried a 50% morbidity rate. However, improved anticonvulsive medications, aggressive airway management, and the spread of EMS Systems throughout the nation have reduced the morbidity rate to a range of 8% to 12%.

Prompt and vigorous treatment is paramount in the successful management of status epilepticus because delays can result in neuronal damage and death. Although intravenous diazepam currently is the drug of choice to terminate seizure activity, it may be difficult to rapidly establish a patent intravenous (IV) line during status epilepticus in young children with vigorous motor activity. Alternate routes, such as intramuscular injections, are unreliable due to unpredictable absorption. Rectal administration of diazepam may provide an useful alternate route for delivery of the drug during status epilepticus when IV attempts fail.

In this review, the authors discuss a case of status epilepticus wherein intravenous access could not be established rapidly and the patient was given diazepam rectally with favorable results.

On July 19,1989, at 1515h, United Airlines flight 232 with 297 passengers and crew on board, experienced disintegration of the number 2 engine (in the tail section) while at 40-thousand feet above Alta, Iowa (Map 1). The DC-10, en route from Denver to Chicago, was diverted to Sioux City, Iowa's Gateway Airport. The disabled jet made a crash landing on an unused runway, burst apart, and caught fire upon impact. Due to the advanced warning of the potential crash, local crash-fire-rescue (CFR) units from the Air National Guard stationed at Gateway Airport, local and regional paramedic and fire units, an advanced life-support EMS helicopter service, and the two Sioux City hospitals were on alert and ready. Firefighters and Air National Guard personnel fought the fire and EMS personnel performed triage, provided emergency care in the field, and transported victims from the crash scene to local health care facilities in Sioux City. Injured victims in critical condition were transported first followed by those with lesser injuries. All were being treated within one hour and 45 minutes of the event. Of the 297 passengers and crew, 59 were admitted to local hospitals in critical condition, and 124 were treated for less severe injuries and later released.

An earthquake with the destructive magnitude of 6.9 on the Richter scale struck Armenia on Wednesday, 7 December 1988 at 1142 local time. It devastated an area 80 km in diameter in the northern part of the Armenian Soviet Socialist Republic (SSR), encompassed the towns of Leninakan, Spitak, Stepanovan, and Kirovakan, and killed some 25,000 persons (Table 1). Almost 15,000 persons were rescued alive. The load placed on medical facilities and transport capabilities was profound. Many Armenian nurses and physicians died during the earthquake and most of the hospitals and clinics within the disaster area were destroyed (Tables 1,2). More than 31,000 persons required some form of medical assistance in hospitals. Some 12,000 (38%) were conveyed by some form of ambulance. Of these, 82% were received by hospitals within the Armenian SSR and 22% still were hospitalized at the beginning of the newyear. Only 13% of those who received care at a hospital died in the hospital. More than 100-thousand victims had to be transported from the scene.