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Edbert B Hsu

Publications and source records attributed to Edbert B Hsu.

14 recordsLinked to original sources
PubMed2006

Inpatient disposition classification for the creation of hospital surge capacity: a multiphase study.

BACKGROUND: The ability to provide medical care during sudden increases in patient volume during a disaster or other high-consequence event is a serious concern for health-care systems. Identification of inpatients for safe early discharge (ie, reverse triage) could create additional hospital surge capacity. We sought to develop a disposition classification system that categorises inpatients according to suitability for immediate discharge on the basis of risk tolerance for a subsequent consequential medical event. METHODS: We did a warfare analysis laboratory exercise using evidence-based techniques, combined with a consensus process of 39 expert panellists. These panellists were asked to define the categories of a disposition classification system, assign risk tolerance of a consequential medical event to each category, identify critical interventions, and rank each (using a scale of 1-10) according to the likelihood of a resultant consequential medical event if a critical intervention is withdrawn or withheld because of discharge. FINDINGS: The panellists unanimously agreed on a five-category disposition classification system. The upper limit of risk tolerance for a consequential medical event in the lowest risk group if discharged early was less than 4%. The next categories had upper limits of risk tolerance of about 12% (IQR 8-15%), 33% (25-50%), 60% (45-80%) and 100% (95-100%), respectively. The expert panellists identified 28 critical interventions with a likelihood of association with a consequential medical event if withdrawn, ranging from 3 to 10 on the 10-point scale. INTERPRETATION: The disposition classification system allows conceptual classification of patients for suitable disposition, including those deemed safe for early discharge home during surges in demand. Clinical criteria allowing real-time categorisation of patients are awaited.

Bed Occupancy↗
PubMed2006

Research priorities for surge capacity.

The 2006 Academic Emergency Medicine Consensus Conference discussed key concepts within the field of surge capacity. Within the breakout session on research priorities, experts in disaster medicine and other related fields used a structured nominal-group process to delineate five critical areas of research. Of the 14 potential areas of discovery identified by the group, the top five were the following: 1) defining criteria and methods for decision making regarding allocation of scarce resources, 2) determining effective triage protocols, 3) determining key decision makers for surge-capacity planning and means to evaluate response efficacy (e.g., incident command), 4) developing effective communication and information-sharing strategies (situational awareness) for public-health decision support, and 5) developing methods and evaluations for meeting workforce needs. Five working groups were formed to consider the above areas and to devise sample research questions that were refined further by the entire group of participants.

Disaster Planning↗
PubMed2006

Healthcare worker competencies for disaster training.

BACKGROUND: Although training and education have long been accepted as integral to disaster preparedness, many currently taught practices are neither evidence-based nor standardized. The need for effective evidence-based disaster training of healthcare staff at all levels, including the development of standards and guidelines for training in the multi-disciplinary health response to major events, has been designated by the disaster response community as a high priority. We describe the application of systematic evidence-based consensus building methods to derive educational competencies and objectives in criteria-based preparedness and response relevant to all hospital healthcare workers. METHODS: The conceptual development of cross-cutting competencies incorporated current evidence through a systematic consensus building process with the following steps: (1) review of peer-reviewed literature on relevant content areas and educational theory; (2) structured review of existing competencies, national level courses and published training objectives; (3) synthesis of new cross-cutting competencies; (4) expert panel review; (5) refinement of new competencies and; (6) development of testable terminal objectives for each competency using similar processes covering requisite knowledge, attitudes, and skills. RESULTS: Seven cross-cutting competencies were developed: (1) Recognize a potential critical event and implement initial actions; (2) Apply the principles of critical event management; (3) Demonstrate critical event safety principles; (4) Understand the institutional emergency operations plan; (5) Demonstrate effective critical event communications; (6) Understand the incident command system and your role in it; (7) Demonstrate the knowledge and skills needed to fulfill your role during a critical event. For each of the cross-cutting competencies, comprehensive terminal objectives are described. CONCLUSION: Cross-cutting competencies and objectives developed through a systematic evidence-based consensus building approach may serve as a foundation for future hospital healthcare worker training and education in disaster preparedness and response.

Community Health Planning↗
PubMed2006

Are regional hospital pharmacies prepared for public health emergencies?

INTRODUCTION: In the event of a major chemical, biological, radiological, nuclear, or explosive (CBRNE) attack or a natural disaster, large quantities of pharmaceuticals and medical supplies may be required with little or no warning. Pharmaceutical surge capacity for immediate response, before Strategic National Stockpile (SNS) supplies become available, remains a significant gap in emergency preparedness. To date, limited attempts have been made to assess collective regional hospital pharmaceutical response capabilities. In this project, we characterized the level of hospital pharmaceutical response preparedness in a major metropolitan region. METHODS: The Johns Hopkins Office of Critical Event Preparedness and Response (CEPAR) convened a collaborative partnership to assess hospital pharmaceutical response capabilities. A survey was developed to characterize pharmaceutical response preparedness to CBRNE threats. RESULTS: All 22 acute care hospitals in the Maryland region were sent pharmaceutical response surveys, and responses were received from 86% (19/22). Within the past year, 84% (16/19) of hospitals had implemented an exercise with pharmacy participation. More than half of the hospitals expect to receive assistance from the SNS in 48 hours or less. Seventy-four percent (14/19) of the hospitals reported an additional dedicated reserve supply for biological events, 74% (14/19) for chemical events, and 58% (11/19) for radiological events. CONCLUSION: Many hospitals in this metropolitan region have taken important steps toward enhancing pharmaceutical preparedness. However, hospitals generally remain underprepared for CBRNE threats and collectively have limited supplies of antibiotics to provide prophylaxis or treatment for hospital staff, their families, and patients in the event of a significant biological incident.

Disaster Planning↗
PubMed2005

Challenges in systematic reviews of educational intervention studies.

Educators have recognized the need to apply evidence-based approaches to medical training. To do so, medical educators must have access to reliable evidence on the impact of educational interventions. This paper describes 5 methodologic challenges to performing systematic reviews of educational interventions for health care professionals: finding reports of medical education interventions, assessing quality of study designs, assessing the scope of interventions, assessing the evaluation of interventions, and synthesizing the results of educational interventions. We offer suggestions for addressing these challenges and make recommendations for reporting, reviewing, and appraising interventions in medical education.

Education, Medical↗
PubMed2005

Development of emergency medicine administration in the People's Republic of China.

A collaborative partnership between the Johns Hopkins Hospital, Chaoyang Red Cross Hospital and Chinese Ministry of Health has been established to initiate Emergency Medicine (EM) administrative training in Beijing, China. The Emergency Medical Education and Training Center (EMETC) at Chaoyang Red Cross Hospital was opened as a training facility to foster EM administrative curriculum development and training nationwide. A six-step approach with problem identification, needs assessment, goals and objectives, educational strategies, implementation and evaluation was used to form a locally adapted curriculum. With a train-the-trainers model, the EMETC sponsored several EM administration courses, the first of their kind in China. Since its inception, the EMETC has trained 95 persons from throughout China in EM administration. An EM administration curriculum has been developed and refined. In conclusion, an international partnership between academic hospitals, supported by the local Ministry of Health, to develop a national training facility using this six-step approach may be an attractive strategy for dissemination of EM administration principles.

China↗
PubMed2002

Evaluation of guidelines for ordering prothrombin and partial thromboplastin times.

OBJECTIVES: Existing clinical practice guidelines for ordering prothrombin time (PT) and partial thromboplastin time (PTT) tests in the emergency department (ED) include physician expectation of an invasive procedure as a criterion. This study sought to determine whether this criterion accurately identifies patients who undergo an invasive procedure and whether an amalgam of these guidelines identifies patients at low risk of an adverse medical outcome. METHODS: A prospective observational cohort study of adults treated in a university medical center ED between July 1997 and March 1998. Physicians were surveyed at order placement to determine the presence of guideline criteria. Adverse clinical outcomes defined as an International Normalized Ratio [INR] > 1.3 or PTT > 39.9 seconds combined with consequent directed medical therapy were abstracted from ED and the first 24 hours of inpatient medical records. RESULTS: The sensitivity of ED physician expectation of an invasive procedure was 60.0%; therefore, it was excluded from both the PT and PTT guidelines. There were 553 patients with a PT test order; test order indications were absent in 190 (34.4%), of which one (0.5%, 95% CI = 0.1% to 2.9%) had adverse outcomes. There were 547 patients with a PTT test; test order indications were absent in 226 (41.3%), of which three (1.3%, 95% CI = 0.4 to 3.8%) had adverse outcomes. All three were taking warfarin when they presented to the ED. CONCLUSIONS: Emergency department physician expectation of an invasive procedure for patients with PT or PTT test orders is an insensitive predictor of patients who undergo such procedures. Clinical practice guidelines that exclude this criterion identify ED patients at the time of ED presentation at low risk for adverse medical outcomes in the ED or shortly after admission.

Aged↗
PubMedDate not supplied

Emergency medical assistance team response following Taiwan Chi-Chi earthquake.

INTRODUCTION: On 21 September, 1999, an earthquake measuring 7.3 on the Richter scale, struck central Taiwan near the town of Chi-Chi. The event resulted in 2,405 deaths and 11,306 injuries. Ad hoc emergency medical assistance teams (EMATs) from Taiwan assumed the responsibility for initiating early assessments and providing medical care. OBJECTIVE: To determine whether the EMATs served a key role in assisting critically injured patients through the assessment of number and level of hospitals responding, training background, timeliness of response, and acuity of patient encounters. METHODS: Local and national health bureaus were contacted to identify hospitals that responded to the disaster. A comprehensive questionnaire was piloted and then, sent to those major medical centers that dispatched EMATs within the first 72 hours following the quake. In-depth interviews also were conducted with team leaders. RESULTS: A total number of 104 hospitals/clinics responded to the disaster, including nine major medical centers and 12 regional hospitals. Each of the major medical centers/regional hospitals that dispatched EMATs during the first 72 hours following the quake were surveyed. Also, 20 individual team leaders were interviewed. Seventy-nine percent of the EMATs from the hospitals responded spontaneously to the scene, while only 21% were dispatched directly by national or local health authorities. Combining the phases of the disaster response, it is estimated that only 7% of EMATs were providing on-site care within the first 12 hours following the earthquake, 17% within < 18 hours, and 20% within < 24 hours. Thus, 80% of these EMATs required > 24 hours to respond to the site. Based on a ED I-IV triage system (Level-I, highest acuity; Level-IV, lowest acuity), the vast majority of patient encounters consisted of Level-III and Level-IV patients. Fewer than 16% of teams encountered > 10 Level-I patients, and < 28% of teams evaluated > 10 Level-II patients. CONCLUSIONS: 1. The response from EMATs was impressive, but largely uncoordinated in the absence of a pre-existing dispatching mechanism. 2. Most of the EMATs required > 24 hours to reach the disaster sites, and generally, did not arrive in time of affect the outcome of victims with preventable deaths. Therefore, there is an urgent need to strengthen local prehospital care. 3. A central governmental body that ensures better horizontal and vertical integration, and a comprehensive emergency management system is required in order to improve future disaster response and mitigation efforts.

Disaster Planning↗
PubMedDate not supplied

Effects on local emergency departments of large-scale urban chemical fire with hazardous materials spill.

INTRODUCTION: On 18 July 2001, a train hauling hazardous materials, including hydrochloric acid, hydrofluoric acid, and acetic acid, derailed in the city of Baltimore, Maryland, resulting in a fire that burned under a downtown street for five days. Firefighters were stymied in their efforts to extinguish the fire, and the city was subjected to thick smoke for several days. OBJECTIVES: To determine whether an urban chemical fire with a hazardous materials spill resulted in a detectable public health impact, and to demographically describe the at-risk population for potential smoke and chemical exposure. METHODS: The United States Centers for Disease Control and Prevention (CDC) was consulted about possible side effects from chemical exposure. Total numbers of emergency department (ED) patients and admissions from 15:00 hours (h), 15 July 2001 to 15:00 h, 21 July 2001 were collected from five local hospitals. Patient encounters citing specified chief complaints from 15:00 h, 15 July to 15:00 h, 18 July (pre-accident) were compared with the period from 15:00 h, July 18 to 15:00 h, 21 July (post-accident). Data were analyzed using Fisher's exact test. The United States Census Bureau's Topologically Integrated Geographic Encoding and Referencing (TIGER) digital database of geographic features and ArcView Geographic Information Systems (GIS) were used to create maps of Baltimore and to identify populations at-risk using attribute census data. RESULTS: There were 62,808 people residing in the immediate, affected area. The mean of the values for age was 33.7 +/- 3.2 years (standard deviation; range = 16 yrs) with 49% (30,927) males and 51% (31,881) females. A total of 2,922 ED patient encounters were screened. Chief complaints included shortness of breath, pre-event = 109 vs. post-event = 148; chest complaints = 90 vs. 113; burns and/or skin irritation = 45 vs. 42; eye irritation 26 vs. 34; throat irritation = 33 vs. 27; and smoke exposure = 0 vs. 15. There was a statistically significant increase (p < 0.05) for shortness of breath and smoke exposure-related complaints. No statistically significant increase in numbers of admitted patients with these complaints was found. CONCLUSIONS: In the setting of a large-scale urban chemical fire, local EDs can expect a significant increase in the number of patients presenting to EDs with shortness of breath and/or smoke inhalation. Most do not require in-patient hospitalization. Careful assessment of impact on local EDs should be considered in future city-accident planning. Some official warnings were widely misinterpreted or ignored. Public education on potential hazards and disaster preparedness targeted to populations at-risk should receive a high priority. Geographic information systems (GIS) may serve as useful tools for identifying demographics of populations at-risk for disaster planning and responses.

Adolescent↗
PubMedDate not supplied

Effectiveness of hospital staff mass-casualty incident training methods: a systematic literature review.

INTRODUCTION: Recently, mass-casualty incident (MCI) preparedness and training has received increasing attention at the hospital level. OBJECTIVES: To review the existing evidence on the effectiveness of disaster drills, technology-based interventions and tabletop exercises in training hospital staff to respond to an MCI. METHODS: A systematic, evidence-based process was conducted incorporating expert panel input and a literature review with the key terms: "mass casualty", "disaster", "disaster planning", and "drill". Paired investigators reviewed citation abstracts to identify articles that included evaluation of disaster training for hospital staff. Data were abstracted from the studies (e.g., MCI type, training intervention, staff targeted, objectives, evaluation methods, and results). Study quality was reviewed using standardized criteria. RESULTS: Of 243 potentially relevant citations, 21 met the defined criteria. Studies varied in terms of targeted staff, learning objectives, outcomes, and evaluation methods. Most were characterized by significant limitations in design and evaluation methods. Seventeen addressed the effectiveness of disaster drills in training hospital staff in responding to an MCI, four addressed technology-based interventions, and none addressed tabletop exercises. The existing evidence suggests that hospital disaster drills are effective in allowing hospital employees to become familiar with disaster procedures, identify problems in different components of response (e.g., incident command, communications, triage, patient flow, materials and resources, and security) and provide the opportunity to apply lessons learned to disaster response. The strength of evidence on other training methods is insufficient to draw valid recommendations. CONCLUSIONS: Current evidence on the effectiveness of MCI training for hospital staff is limited. A number of studies suggest that disaster drills can be effective in training hospital staff. However, more attention should be directed to evaluating the effectiveness of disaster training activities in a scientifically rigorous manner.

Disaster Planning↗
PubMedDate not supplied

The incident command system in disasters: evaluation methods for a hospital-based exercise.

OBJECTIVES: No universally accepted methods for objective evaluation of the function of the Incident Command System (ICS) in disaster exercises currently exist. An ICS evaluation method for disaster simulations was derived and piloted. METHODS: A comprehensive variable list for ICS function was created and four distinct ICS evaluation methods (quantitative and qualitative) were derived and piloted prospectively during an exercise. Delay times for key provider-victim interactions were recorded through a system of data collection using participant- and observer-based instruments. Two different post-exercise surveys (commanders, other participants) were used to assess knowledge and perceptions of assigned roles, organization, and communications. Direct observation by trained observers and a structured debriefing session also were employed. RESULTS: A total of 45 volunteers participated in the exercise that included 20 mock victims. First, mean, and last victim delay times (from exercise initiation) were 2.1, 4.0, and 9.3 minutes (min) until triage, and 5.2, 11.9, and 22.0 min for scene evacuation, respectively. First, mean, and last victim delay times to definitive treatment were 6.0, 14.5, and 25.0 min. Mean time to triage (and range) for scene Zones I (nearest entrance), II (intermediate) and III (ground zero) were 2.9 (2.0-4.0), 4.1 (3.0-5.0) and 5.2 (3.0-9.0) min, respectively. The lowest acuity level (Green) victims had the shortest mean times for triage (3.5 min), evacuation (4.0 min), and treatment (10.0 min) while the highest acuity level (Red) victims had the longest mean times for all measures; patterns consistent with independent rather than ICS-directed rescuer activities. Specific ICS problem areas were identified. CONCLUSIONS: A structured, objective, quantitative evaluation of ICS function can identify deficiencies that can become the focus for subsequent improvement efforts.

Communication↗
PubMedDate not supplied

Using innovative simulation modalities for civilian-based, chemical, biological, radiological, nuclear, and explosive training in the acute management of terrorist victims: A pilot study.

OBJECTIVES: Chemical, biological, radiological, nuclear, and explosive (CBRNE) incidents are low frequency, high impact events that require specialized training outside of usual clinical practice. Educational modalities must recreate these clinical scenarios in order to provide realistic first responder/receiver training. METHODS: High fidelity, mannequin-based (HFMB) simulation and video clinical vignettes were used to create a simulation-based CBRNE course directed at the recognition, triage, and resuscitation of contaminated victims. The course participants, who consisted of first responders and receivers, were evaluated using a 43-question pre- and post-test that employed 12 video clinical vignettes as scenarios for the test questions. The results of the pre-test were analyzed according to the various medical training backgrounds of the participants to identify differences in baseline performance. A Scheffe post-hoc test and an ANOVA were used to determine differences between the medical training backgrounds of the participants. For those participants who completed both the pre-course and post-course test, the results were compared using a paired Student's t-test. RESULTS: A total of 54 first responders/receivers including physicians, nurses, and paramedics completed the course. Pre-course and post-course test results are listed by learner category. For all participants who took the pre-course test (n = 67), the mean value of the test scores was 53.5 +/- 12.7%. For all participants who took the post-course test (n = 54), the mean value of the test scores was 78.3 +/-10.9%. The change in score for those who took both the pre- and post-test (n = 54) achieved statistical significance at all levels of learner. CONCLUSIONS: The results suggest that video clinical vignettes and HFMB simulation are effective methods of CBRNE training and evaluation. Future studies should be conducted to determine the educational and cost-effectiveness of the use of these modalities.

Bioterrorism↗