Full-scale disaster drills are complex, expensive, and may involve hundreds or thousands of people. However, even when carefully planned, they often fail to manifest the details of medical care given to the casualties during the drill.

To assess the feasibility of integrating physicians among the simulated casualties of a hospital disaster drill.

A total of 178 physicians graduating an Advanced Trauma Life Support (ATLS) course participated in eight hospital disaster drills during 1994 as “Smart Victims.” The participants were given cards with descriptions of their injury and detailed instructions on how to manipulate their medical condition according to the medical care provided in the hospital. They also were given coded questionnaires to fill out during the process of the drill. Conclusions were drawn from analysis of the questionnaires and from a roundtable discussion following each drill.

The “smart casualties” made comments on the following topics: 1) triage (over-triage in 9%, and under-triage in 4%); 2) treatment sites; 3) medical equipment usage (i.e., shortage of ventilators and splinting devices); 4) medical knowledge and care rendered by the hospital staff; 5) evacuation and escorting of the wounded; 6) management of patients with post-traumatic stress disorder; and 7) medical documentation. Their comments contributed valuable information on the quality of medical care and organization, and identified obstacles that otherwise would have been overlooked. The “smart casualties” were very cooperative and indicated that their participation in the drill contributed to their understanding of disaster situations in hospitals.

Integrating physicians among the simulated casualties in a hospital disaster drill may contribute to achieving the objectives of hospital disaster drills and add to disaster management education of the simulated casualty physicians.

The pivotal role of anesthesiologists in the implementation of disaster plans is not widely appreciated.

To describe the role of anesthesiologists as managers in the operating room (OR) especially during hospital disaster management.

On 25 February 1991, King Fahd Hospital of the University in Eastern Saudi Arabia, was alerted, received, triaged, and treated the victims of a Scud missile attack on a United States military barracks which killed 28 and injured more than 100 service personnel.

There were 47 males and 15 females admitted to the hospital. Their initial triage categories of injuries were: 1) red, 23; 2) yellow, 27; and 3) green, 7. The flow of patients through the main operating rooms occurred in two peaks: 1) treated within nine hours (60%); and 2) during the next 11 hours (40%). A total 101 units of blood and blood products were consumed.

The role of the Chief of Anesthesiology was vital in the dynamics of the situation regarding appropriate deployment of staff and ensuring an orderly throughput of victims in the operating room. He also was required to keep track of resources and supply levels in the operating room, so that he could advise the hospital administration appropriately.

The successful management of a large multi-casualty incident, which involved use of the operating rooms, depended upon the efficient coordination of clearly defined functions with the Chief of Anesthesiology Service as the team leader.

Emergency services personnel are highly vulnerable to acute and cumulative critical incident stress (CIS) that can manifest as anger, guilt, depression, and impaired decision-making, and, in certain instances, job loss. Interventions designed to identify such distress and restore psychological functioning becomes imperative.

A statewide debriefing team was formed in 1988 through a collaborative effort between an academic department of emergency medicine and a social work department of a teaching hospital, and a metropolitan area fire department and ambulance service. Using an existing CIS debriefing model, 84 pre-screened, mental health professionals and emergency services personnel were provided with 16 hours of training and were grouped into regional teams.

Debriefing requests are received through a central number answered by a communicator in a 24-hour communications center located within the emergency department. Debriefings are conducted 48–72 hours after the event for specific types of incidents. Follow-up telephone calls are made by the debriefing team leader two to three weeks following a debriefing. The teams rely on donations to pay for travel and meals.

One hundred sixty-eight debriefings were conducted during the first four years. Rural agencies accounted for 116 (69%) requests. During this period, 1,514 individuals were debriefed: 744 (49%) firefighters, 460 (30%) EMTs, and 310 (21%) police officers, dispatchers, and other responders. Deaths of children, extraordinary events, and incidents involving victims known to the responders (35%, 14%, and 14% respectively) were the most common reasons for requesting debriefings. Feedback was received from 48 (28%) of the agencies that requested the debriefing. All of those who responded felt that the debriefing had a beneficial effect on its personnel. Specific individuals identified by agency representatives as having the greatest difficulty were observed to be returned to their pre-incident state.

CIS debriefings are judged as beneficial. A statewide response team is an effective way to provide these services at no cost to agencies.

This paper examines the considerable medical and psychological problems that ensue after disasters in which massive populations are affected for extended and sometimes unknown time periods. The organization of disaster response teams after large-scale disasters is based on experiences as a medical specialist at Chernobyl immediately after this catastrophe. Optimal ways of dealing with the immediate medical and logistical demands as well as long-term public health problems are explored with a particular focus on radiation disasters. Other lessons learned from Chernobyl are explained.

Current concerns involve the constant threat of a disaster posed by aging nuclear facilities and nuclear and chemical disarmament activities. The strategies that have been used by various groups in responding to a disaster and dealing with medical and psychological health effects at different disaster stages are evaluated. The emergence of specialized centers in the former Soviet Union to study long-term health effects after radiation accidents are described. Worldwide, there has been relatively little attention paid to mid- and long-term health effects, particularly the psychological stress effects. Problems in conducting longitudinal health research are explored.

The use of a mobile diagnostic and continuously operating prehospital triage system for rapid health screening of large populations at different stages after a large-scale disaster is advisable. The functional systems of the body to be observed at different stages after a radiation disaster are specified. There is a particularly strong need for continued medical and psychosocial evaluation of radiation exposed populations over an extended time and a need for international collaboration among investigators.

Automatic external defibrillators (AED) have enabled the medical act of defibrillation to be performed in the community by a number of non-physician providers. However, these portable, battery-powered units are costly to maintain and service. This study examines the life of AED batteries and provides a battery replacement protocol.

Prospective diagnostic testing of 191 field batteries to determine their ability to deliver shocks at 360 joule.

Ottawa General Hospital Paramedic Program.

Using a battery analyzer, battery capacity and the number of shocks delivered were determined for each battery (at room temperature and in a controlled, refrigerated setting). In addition, the reliability of the testing method was assessed using the interclass correlation coefficient (ICC).

High reliability of blinded technical assessment of the batteries was achieved (ICC = 0.85). A strong correlation between the battery's capacity and the number of shocks it can deliver was obtained. For example, a battery with a measured capacity of 75% is capable of delivering more than 30 consecutive 360 joule shocks. This compares to a battery with a capacity of 20%, which is capable of delivering only 12 consecutive 360 joule shocks.

While manufacturers' recommendations on battery replacement always have been based on an assumed technical threshold, these recommendations are not based on individual battery performance. The system for testing batteries described in this paper, should provide significant cost savings and improve quality assurance within a prehospital AED program.

The purpose of this study was to evaluate stress levels in emergency medical services personnel across the United States.

Confidential, 20-question survey tool, Medical Personnel Stress Survey-Abbreviated (MPSS-R). A total score of 50 indicates average stress levels. A score of 12.5 on the subset measurements of somatic distress, job dissatisfaction, organizational stress, and negative attitudes towards patients indicates average levels of stress. Data were analyzed using ANOVA and t-test.

None.

A total of 658 of 3,000 emergency medical technicians (EMTs) (22%) completed the survey. The mean value of 69.3±6.3 for the total stress scores was very high Mean values for the subset scores were: somatic distress = 19.6±3.3; organizational stress = 17.3±2.4; job dissatisfaction = 17.0±2.6; negative attitudes towards patients = 15.5±2.3. Characteristics predicting higher stress were EMT-basic (A) licensure, basic life support (BLS) only service provider, volunteer status, new employee working in a small EMS organization, and providing service to a small town.

Stress levels in EMS personnel were very high, were manifested primarily as somatic distress, secondarily as organizational stress and job dissatisfaction, and lastly as negative patient attitudes. Stress levels and subset manifestations of occupational stress among EMS personnel varied depending on gender, marital status, age, level of training and function, on salaried or volunteer status, length of time as an EMT, and size of the organization, city, and population served. Care should be taken to address stresses peculiar to individual EMS system needs.

To determine the reliability of ST-segment interpretation by paramedics from lead-II rhythm strips obtained in the prehospital setting.

Prospective, blinded study of 127 patients transported by an urban/rural emergency medical services system with complaints consistent with ischemic heart disease.

Emergency department physicians asked emergency medical technician-paramedics (EMT-P) via radio to evaluate ST-segments for elevation or depression and grade it as “mild,” “moderate,” or “severe.” Then, this rhythm strip was interpreted blindly by emergency physicians who also interpreted the lead-II obtained from a 12-lead electrocardiogram (ECG) obtained in the emergency department (ED). The field interpretation was compared with the subsequent readings and the final in-patient diagnosis using positive predictive value (PPV), negative predictive value (NPV), and the Kappa statistic. Markedly discrepant interpretations were analyzed separately.

Using physician interpretation as the reference standard, paramedic interpretation of the lead-II ST-segments obtained in the prehospital setting was correct (within ±1 gradation) in 113 out of 127 total cases (89%). Of 105 patients for whom final hospital diagnosis was available, the ST-segment on the rhythm strip obtained in the prehospital setting, had a positive predictive value of 74% and a negative predictive value of 85% for myocardial ischemia or myocardial infarction (MI) (p <0.001, Kappa = 0.59). Discordant interpretations between the paramedics and emergency physicians often were related to a basic misunderstanding of rhythm strip morphology.

Field interpretation of ST-segments by paramedics is fairly accurate as judged both by emergency physicians and correlation with final patient outcome, but its clinical utility is unproved. A small but clinically significant number of outliers, consisting of markedly discrepant false positives, reflects paramedic uncertainty in identifying the deviations of the ST-segment.

To determine the type and frequency of immediate unsolicited feedback received by emergency medical service (EMS) providers from patients or their family members and emergency department (ED) personnel.

Prospective, observational study of 69 emergency medical services providers in an urban emergency medical service system and 12 metropolitan emergency departments. Feedback was rated by two medical student observers using a prospectively devised original scale.

In 295 encounters with patients or family, feedback was rated as follows: 1) none in 224 (76%); 2) positive in 51 (17%); 3) negative in 19 (6%); and 4) mixed in one (<1%). Feedback from 254 encounters with emergency department personnel was rated as: 1) none in 185 (73%); 2) positive in 46 (18%); 3) negative in 21 (8%); and 4) mixed in 2 (1%). Patients who had consumed alcohol were more likely to give negative feedback than were patients who had not consumed alcohol. Feedback from emergency department personnel occurred more often when the emergency medical service provider considered the patient to be critically ill.

The two groups provided feedback to emergency medical service providers in approximately one quarter of the calls. When feedback was provided, it was positive more than twice as often as it was negative. Emergency physicians should give regular and constructive feedback to emergency medical services providers more often than currently is the case.

An eight year retrospective analysis was conducted to determine the type and outcome of lawsuits related to the provision of 9-1-1 paramedic service in an urban environment.

For the evaluation period of May 1986 to March 1994, all litigation cases related to Ambulance Service or paramedics were collected and analyzed. This urban 9-1-1 Paramedic Service has an estimated call volume of >60,000 assignments resulting in >30,000 patient encounters during the evaluation period.

Seven lawsuits were filed against the service. No lawsuits were related to tardy response, failure to transport, or patient care negligence of any kind. All of the litigation was related to motor vehicle collisions (MVC).

The data suggest that motor vehicle collisions are a significant medicallegal risk to the EMS community. In addition, it was found that the use and lack of use of seatbelts was an important component in many of the suits.

An evaluation of the opioid analgesic tramadol (Zydol, Searle United Kingdom) was carried-out by ambulance paramedics to assess its efficacy in providing pain relief in the prehospital situation.

Type of subjects—Patients suffering severe pain from any cause uncontrolled by other simple methods.

Number of subjects—101 patients received tramadol and 41 patients served as a control. Study design—Random, open study.

Statistical tests—Pain score at scene and on arrival at hospital were compared using Fisher's exact tests (2 sides). Logistic regression analyses also were applied to other factors.

Pain scores improved for 93.1% of the tramadol treated patients and for 44.0% of the controls. A total of 30.7% of patients treated with tramadol complained of nausea after treatment compared with 17.1% before treatment and with 12.2% of the control patients.

Pain was significantly decreased by the administration of tramadol. It was safe with only minimal side effects, the major one being nausea. Suggestions are made for areas of further study.

To measure blood levels of morphine and additional drugs in patients suspected of intravenous (IV) heroin abuse and to evaluate the effects of antidote treatment.

Prehospital blood sampling in 52 patients.

Forty-five patients were blood-positive for heroin, eight of whom were hospitalized. Forty-one patients also had abused additional drugs: minor tranquilizers, ethanol, amphetamine, cocaine, and/or carbamazepine. Seven patients had taken either only methadone or ketobemidione: one was admitted. Treatment with increasing doses of naloxone indicated a necessity for hospitalization. Six of 14 patients treated with naloxone (1.8 mg were hospitalized. Seven patients had an extremely high blood level of morphine (0.2 mg/kg), that could be reverted with naloxone in moderate doses.

This study indicates that under prehospital conditions, it is difficult to identify a patient intoxicated only with intravenous heroin. Nearly all patients treated were cases of multiple drug/alcohol overdoses. Even the symptoms associated with extremely high blood levels of morphine could be reversed with naloxone in moderate doses.

Bicycles may be useful in the delivery of out-of-hospital emergency medical services. The use of bicycles in providing emergency medical services was investigated by surveying currently existing bicycle-medic systems.

Two questionnaires were developed to gain information on service areas, injuries, gear used, missions, and specific data from bicycle-medic response.

Of 210 surveys mailed to bicyclemedics, 21 (10%) were completed and returned by the pre-established deadline. Of 11 surveys mailed to bicycle-medic supervisors, four (36%) were returned. Preliminary results showed that 76% of respondents are career providers and the remainder serve as volunteers. Mean age for respondents was 33±7.4 years, with 96% being males. Most teams have been in existence for three to four years. Job satisfaction was greater when participating on the bicycle crews than when not performing on the bicycle crew, t = 4.15, p = 0.0002. The teams varied in size (6–100 persons) with a mean value of 31. On the average, team size represented 10% of total number of personnel for the respective organizations.

The majority of bicycle teams operate all year in all conditions. Most bicycle-medic teams were initiated for special events. Nineteen percent reported injuries while on duty or in training. Ninety percent of units that responded use existing agency protocols and have no special protocols related to the bicycle team. Eighty percent of the units are dispatched through the normal agency procedures. Eighty-five percent of respondents coordinate for transport units via dispatch. Reported response times were under two minutes for special event responses. These were within established agency response times. In approximately 25% of the responses, the patients refused transport, and another 65% of the responses were for relatively minor injuries or complaints that did not require transport to a hospital.

This survey begins to characterize the utilization of bicycles as a tool to gain patient access in specialized situations. The use of bicycle-medics may be cost-effective, may help to improve employee morale, and possibly reduce employee health-care costs. Further study is needed to determine the impact of bicycle-medics on patient outcomes and response times.