Can teamwork and situational awareness (SA) in ED resuscitations be improved with a technological cognitive aid? Design and a pilot study of a team situation display.

Effective teamwork in ED resuscitations, including information sharing and situational awareness, could be degraded. Technological cognitive aids can facilitate effective teamwork. OBJECTIVE: This study focused on the design of an ED situation display and pilot test its influence on teamwork and situational awareness during simulated resuscitation scenarios. MATERIAL AND METHODS: The display design consisted of a central area showing the critical dynamic parameters of the interventions with an events time-line below it. Static information was placed at the sides of the display. We pilot tested whether the situation display could lead to higher scores on the Clinical Teamwork Scale (CTS), improved scores on a context-specific Situational Awareness Global Assessment Technique (SAGAT) tool, and team communication patterns that reflect teamwork and situational awareness. RESULTS: Resuscitation teamwork, as measured by the CTS, was overall better with the presence of the situation display as compared with no situation display. Team members discussed interventions more with the situation display compared with not having the situation display. Situational awareness was better with the situation display only in the trauma scenario. DISCUSSION: The situation display could be more effective for certain ED team members and in certain cases. CONCLUSIONS: Overall, this pilot study implies that a situation display could facilitate better teamwork and team communication in the resuscitation event.

Low response rate schools in surveys of adolescent risk taking behaviours: possible biases, possible solutions.

STUDY OBJECTIVE: To examine the potential biases introduced when students in low response rate schools are dropped from classroom based surveys of adolescent risk taking behaviour. DESIGN: Self administered confidential surveys were conducted in classrooms, with follow up visits to each school to survey students absent during the initial survey administration. Data on students in schools that achieved a 70% response rate are compared with data on students in schools that did not achieve this level of response. SETTING: New York City, United States. PARTICIPANTS: 1854 10th graders in 13 public (state supported) high schools. MAIN RESULTS: Students in schools with low response rates resulting from high rates of absenteeism have different demographic characteristics and engage in more risk behaviours than students in schools with low absenteeism and high response rates. Excluding schools with low rates of response can have an effect on estimates of risk behaviour, even after data are weighted for individual absences. The potential for bias is greatest when, in sampling schools, the proportion of schools with low response rates is large, and when such schools represent a large share of the students in the area under study. CONCLUSIONS: Excluding schools with poor response rates from survey samples using a classroom based approach does not improve, and may, under some circumstances, underestimate risky behaviour among adolescent populations.

Vasopressin versus epinephrine for inhospital cardiac arrest: a randomised controlled trial.

BACKGROUND: Survival rates for cardiac arrest patients, both in and out of hospital, are poor. Results of a previous study suggest better outcomes for patients treated with vasopressin than for those given epinephrine, in the out-of-hospital setting. Our aim was to compare the effectiveness and safety of these drugs for the treatment of in-patient cardiac arrest. METHODS: We did a triple-blind randomised trial in the emergency departments, critical care units, and wards of three Canadian teaching hospitals. We assigned adults who had cardiac arrest and required drug therapy to receive one dose of vasopressin 40 U or epinephrine 1 mg intravenously, as the initial vasopressor. Patients who failed to respond to the study intervention were given epinephrine as a rescue medication. The primary outcomes were survival to hospital discharge, survival to 1 h, and neurological function. Preplanned subgroup assessments included patients with myocardial ischaemia or infarction, initial cardiac rhythm, and age. FINDINGS: We assigned 104 patients to vasopressin and 96 to epinephrine. For patients receiving vasopressin or epinephrine survival did not differ for hospital discharge (12 [12%] vs 13 [14%], respectively; p50.67; 95% CI for absolute increase in survival 211.8% to 7.8%) or for 1 h survival (40 [39%] vs 34 [35%]; p50.66; 210.9% to 17.0%); survivors had closely similar median mini-mental state examination scores (36 [range 19-38] vs 35 [20-40]; p50.75) and median cerebral performance category scores (1 vs 1). INTERPRETATION: We failed to detect any survival advantage for vasopressin over epinephrine. We cannot recommend the routine use of vasopressin for inhospital cardiac arrest patients, and disagree with American Heart Association guidelines, which recommend vasopressin as alternative therapy for cardiac arrest.

The relationship of residential instability to medical care utilization among poor mothers in New York City.

OBJECTIVES: This study examines the relationship between residential instability, including mobility and previous homelessness, and the use of medical care among previously sheltered and never-sheltered mothers in New York City. The study represents one of the first efforts to follow up on families after they are no longer homeless. METHODS: Mothers from 543 welfare families in New York City were interviewed, once in 1988 (Time 1) and again beginning in 1992 (Time 2). The sample included 251 families who first entered shelters after their 1988 interview, and 292 families who spent no time in shelters before or after that point. Mothers were asked about the source and volume of medical care used in the year before follow-up. RESULTS: Bivariate and multivariate analyses showed that previously sheltered mothers had a greater reliance on emergency departments (EDs) and weaker ties to private physicians or health maintenance organizations (HMOs) than did mothers who never used shelters. Mobility before the Time 1 interview was associated with greater reliance on EDs and absence of a usual source of care. More recent mobility was not associated with a usual source of care. Current residential stability reduced the likelihood of using an emergency department or having no regular source of care. None of the measures of residential instability were related to the volume of outpatient care used by mothers. CONCLUSIONS: A history of residential instability, particularly previous shelter use, strongly predicts where poor mothers currently seek health care. Further research is needed to determine whether these patterns of health care use existed before mothers entered shelters. The study provides evidence that upon leaving shelters, mothers are not being well integrated into primary care services.

Predictors of homelessness among families in New York City: from shelter request to housing stability.

OBJECTIVES: This study examined predictors of entry into shelter and subsequent housing stability for a cohort of families receiving public assistance in New York City. METHODS: Interviews were conducted with 266 families as they requested shelter and with a comparison sample of 298 families selected at random from the welfare caseload. Respondents were reinterviewed 5 years later. Families with prior history of shelter use were excluded from the follow-up study. RESULTS: Demographic characteristics and housing conditions were the most important risk factors for shelter entry; enduring poverty and disruptive social experiences also contributed. Five years later, four fifths of sheltered families had their own apartment. Receipt of subsidized housing was the primary predictor of housing stability among formerly homeless families (odds ratio [OR] = 20.6, 95% confidence interval [CI] = 9.9, 42.9). CONCLUSIONS: Housing subsidies are critical to ending homelessness among families.

Health management education partnerships: more than technology transfer.

This article presents the reflections of three faculty members from New York University based on more than two years of experience in a health management education (HME) partnership with institutions in the Republic of Albania. The most significant point to be shared with colleagues considering similar initiatives in other countries is that aiding other professionals in developing health management education programs involves much more than the transfer of technical information among professionals. Based on experience in Albania, we argue that the development of viable management and policy analysis programs will require assistance to counterparts in Central and Eastern Europe in: (1) building constituencies for these activities among influential leaders and sustaining this support through changes in government; (2) providing models of and motivations for using styles of pedagogy that vary significantly from those now common in this part of the world; and (3) reconciling conflicts between pressures for investments in the largely hospital-based activity of health management and the largely public-health-based needs of relatively poor countries.

The Ontario trial of active compression-decompression cardiopulmonary resuscitation for in-hospital and prehospital cardiac arrest.

OBJECTIVE: To compare the impact of active compression-decompression (ACD) cardiopulmonary resuscitation (CPR) and standard CPR on the outcomes of in-hospital and prehospital victims of cardiac arrest. DESIGN: Randomized controlled trial with blinding of allocation using a sealed container. SETTINGS: (1) Emergency departments, wards, and intensive care units of 5 university hospitals and (2) all locations outside hospitals in 2 midsized cities. PATIENTS: A total of 1784 adults who had cardiac arrest. INTERVENTION: Patients received either standard or ACD CPR throughout resuscitation. MAIN OUTCOME MEASURES: Survival for 1 hour and to hospital discharge and the modified Mini-Mental State Examination (MMSE). RESULTS: All characteristics were similar in the standard and ACD CPR groups for the 773 in-hospital patients and the 1011 prehospital patients. For in-hospital patients, there were no significant differences between the standard (n = 368) and ACD (n = 405) CPR groups in survival for 1 hour (35.1% vs 34.6%; P = .89), in survival until hospital discharge (11.4% vs 10.4%; P = .64), or in the median MMSE score of survivors (37 in both groups). For patients who collapsed outside the hospital, there were also no significant differences between the standard (n = 510) and ACD (n = 501) CPR groups in survival for 1 hour (16.5% vs 18.2%; P = .48), in survival to hospital discharge (3.7% vs 4.6%; P = .49), or in the median MMSE score of survivors (35 in both groups). Exploration of clinically important subgroups failed to identify any patients who appeared to benefit from ACD CPR. CONCLUSIONS: ACD CPR did not improve survival or neurologic outcomes in any group of patients with cardiac arrest.

Association of drug therapy with survival in cardiac arrest: limited role of advanced cardiac life support drugs.

OBJECTIVE: To generate hypotheses regarding the association of standard Advanced Cardiac Life Support (ACLS) drugs with human cardiac arrest survival. METHODS: This observational cohort study was conducted over a two-year period in the wards, intensive care units, and EDs of two tertiary care hospitals. Included werc adult patients who suffered cardiac arrest either inside or outside the hospital and who required epinephrine according to standard ACLS guidelines. Six standard ACLS drugs (given while CPR was in progress) were assessed for association with survival from resuscitation to one hour and to hospital discharge by univariate and multivariate logistic regression analyses. RESULTS: In the 529 patients studied, initial cardiac rhythm had no impact on the association between drug administration and survival. The time of drug administration (quartile of ACLS period) was associated with resuscitation for atropine (p < 0.05) and lidocaine (p < 0.01). The odds ratios (95% CIs) for successful resuscitation, after multivariate adjustment for potential confounders, were: a respiratory initiating cause, 3.7 (2.1 -6.4); each 5-minute increase in CPR-ACLS interval, 0.5 (0.4-0.7); each 5-minute duration of ACLS. 0.9 (()1.8- 1.0; atropine, 1.2 (1.0-1.3); bretylium. (0.4 (0.1-1.1); calcium 0.8 (0.2-2.4); lidocaine, 0.9 (0.7-1.1); procainamide. 21.0 (5.2-84.0) d sodium bicarbonate 1.2 (1.0-1.6). All other potential confounding variables entered into the model were not significantly associated with resuscitation. CONCLUSION: Initiating cause of arrest, time to ACLS, and duration of ACLS were important correlates of survival. Other than procainaimide, standard ACLS drugs had relatively little association with survival, but timing of administration may be an important factor. Further research using definitive large randomized controlled trials is warranted to assess the role of drug therapy in improving cardiac arrest survival.

Access to hospitals with high-technology cardiac services: how is race important?

OBJECTIVES: Relatively few hospitals in the United States offer high-technology cardiac services (cardiac catheterization, bypass surgery, or angioplasty). This study examined the association between race and admission to a hospital offering those services. METHODS: Records of 11,410 patients admitted with acute myocardial infarction to hospitals in New York State in 1986 were analyzed. RESULTS: Approximately one third of both White and Black patients presented to hospitals offering high-technology cardiac services. However, in a multivariate model adjusting for home-to-hospital distance, the White-to-Black odds ratio for likelihood of presentation to such a hospital was 1.68 (95% confidence interval = 1.42, 1.98). This discrepancy between the observed and "distance-adjusted" probabilities reflected three phenomena: (1) patients presented to nearby hospitals; (2) Blacks were more likely to live near high-technology hospitals; and (3) there were racial differences in travel patterns. For example, when the nearest hospitals did not include a high-technology hospital, Whites were more likely than Blacks to travel beyond those nearest hospitals to a high-technology hospital. CONCLUSIONS: Whites and Blacks present equally to hospitals offering high-technology cardiac services at the time of acute myocardial infarction. However, there are important underlying racial differences in geographic proximity and tendencies to travel to those hospitals.

Sudden unexpected death in the emergency department: caring for the survivors.

OBJECTIVE: To determine whether emergency department staff met the needs of the next of kin and close friends ("survivors") of patients dying in an emergency department and to assess the effectiveness of a program to improve care of survivors. DESIGN: Mail survey before and after program implementation. SETTING: Emergency department of a tertiary care, adult teaching hospital. PARTICIPANTS: Two groups of survivors, identified through a review of emergency department records of deaths during two 6-month periods. In the first group, surveyed in 1987, before program implementation, 26 (53%) of 49 responded; in the second group, surveyed in 1990, after program implementation, 40 (70%) of 57 responded. INTERVENTIONS: A structured, multidisciplinary protocol for notifying next of kin of death and supporting the survivors was implemented. An educational program was provided to all emergency department staff. An information pamphlet was created and provided to survivors. MAIN OUTCOME MEASURES: Questionnaire responses regarding the adequacy and timeliness of information provided, the support and actions by emergency department staff and the survivors' desire to be present during resuscitation efforts. RESULTS: Comparison of responses before and after program implementation showed that adequate information was provided before notification of death in 32% and 83% of cases respectively (p < 0.001), lengthy delays in receiving medical information occurred in 60% and 15% of cases (p < 0.01), adequate medical information concerning the events of death was provided in 53% and 88% (p < 0.05), the presence of emergency department staff was sufficient in 40% and 79% (p < 0.01), survivors spent less than 2 hours in the emergency department in 50% and 81% (p < 0.05), and survivors expressed a desire to be present during resuscitation efforts in 95% and 11% of cases (p < 0.001). CONCLUSION: The grievous experience of learning that a loved one has suddenly and unexpectedly died in the emergency department can be alleviated somewhat by a structured, multidisciplinary approach combined with staff sensitization and education.

Impact of employment-based health insurance on home attendants.

This study examines 253 newly hired home attendants to measure the degree to which employment-based health insurance can affect health status and utilization of health care services among a working poor population that has little experience with health insurance and may face other significant barriers to care. Physician contacts increased after benefits were received; attendants who had no coverage during the prior year experienced the greatest average increase. More attendants also reported using emergency rooms. Neither hospitalizations nor health status were affected. These findings indicate that insurance benefits may substantially improve access to care for many working poor persons, regardless of other barriers they may face.

Predictors of shelter use among low-income families: psychiatric history, substance abuse, and victimization.

For poor housed and homeless families in New York City, NY, we examined the degree to which psychiatric and substance-abuse problems and victimization placed the families at elevated risk of requiring emergency housing, and we documented the prevalence of such problems. These problems were infrequently reported by both groups. However, past mental hospitalization, treatment in a detoxification center, childhood sexual abuse, and adult physical abuse were associated with increased risk of homelessness.

High-dose epinephrine in adult cardiac arrest.

BACKGROUND: Recent studies suggest that doses of epinephrine of 0.1 mg per kilogram of body weight or higher may improve myocardial and cerebral blood flow as well as survival in cardiac arrest. Such studies have called into question the traditional dose of epinephrine (0.007 to 0.014 mg per kilogram) recommended for advanced cardiac life support. METHODS: We randomly assigned 650 patients who had had cardiac arrest either in or outside the hospital to receive up to five doses of high-dose (7 mg) or standard-dose (1 mg) epinephrine at five-minute intervals according to standard protocols for advanced cardiac life support. Patients who collapsed outside the hospital received no advanced-life-support measures other than defibrillation before reaching the hospital. RESULTS: There was no significant difference between the high-dose group (n = 317) and the standard-dose group (n = 333) in the proportions of patients who survived for one hour (18 percent vs. 23 percent, respectively) or who survived until hospital discharge (3 percent vs. 5 percent). Among the survivors, there was no significant difference in the proportions who remained in the best category of cerebral performance (90 percent vs. 94 percent) and no significant difference in the median Mini-Mental State score (36 vs. 37). The exploration of clinically important subgroups, including those with out-of-hospital arrest (n = 335) and those with in-hospital arrest (n = 315), failed to identify any patients who appeared to benefit from high-dose epinephrine and suggested that some patients may have worse outcomes after high-dose epinephrine. CONCLUSION: High-dose epinephrine was not found to improve survival or neurologic outcomes in adult victims of cardiac arrest.

Health status and health care utilization among New York City home attendants: an illustration of the needs of working poor, immigrant women.

In this paper, the health needs and health care utilization patterns of home attendants and their families have been studied as an illustration of those likely to be found among working poor, immigrant women and their children. Despite tremendous growth in the number of immigrants, studies to date provide only limited information regarding the specific health needs and patterns of health care utilization among such women and their children. As part of a longitudinal study on the impact of insurance on health status and health care utilization, 387 female, immigrant home attendants were interviewed. Data were also gathered on 355 of their minor children. These women and children were found to be less likely than other Americans to make use of basic health services, despite the fact that they are more likely to indicate fair or poor health status. This is true even in comparison to poor or uninsured Americans. Immigrant attendants in fair or poor health report an average annual visit rate of 4.1 ambulatory care visits for themselves and 2.2 for their children, as compared to 8.4 for poor adults and 4.4 for poor children in national samples. These findings illustrate the likelihood that poor, immigrant women make limited use of American medical care, and face barriers to health care that appear even greater than those faced by the uninsured and the poor.

Social relationships and vulnerability to becoming homeless among poor families.

This study compares social relationships of 677 mothers in families requesting shelter with those of 495 mothers in housed families, randomly selected from the public assistance caseload in New York City. As hypothesized, women seeking shelter had experienced higher levels of a variety of childhood and adult events indicative of disruptions in social relationships. Contrary to our hypothesis, they were more likely than were housed mothers to have had recent contact with parents, other relatives, and friends, although they felt less able to draw on these resources for help with their current housing needs. More than three fourths of families seeking shelter had already stayed with members of their social network in the past year. The data suggest that they had used up potential sources of support before turning to public shelter.

Epinephrine in cardiopulmonary resuscitation.

This review assesses the role of epinephrine in cardiopulmonary resuscitation from the perspective of mechanisms of action, cardiac and cerebral effects, and use in human beings. We reviewed the literature from 1966 onward, using a Medline Search of the National Library of Medicine with the key words: "heart arrest," "resuscitation," and "epinephrine." Pertinent articles that represented original research were critically appraised by at least two authors. We concluded that the Advanced Cardiac Life Support recommended dose of epinephrine (1 mg or 0.007 to 0.014 mg/kg) has little scientific basis. Evidence from animal studies demonstrates that doses of 0.1 to 0.2 mg/kg are required to significantly improve myocardial and cerebral blood flow and resuscitation rates. Limited human data confirm the dose-dependent vasopressor response to epinephrine and the potential for improved immediate survival with higher doses. We suggest that randomized controlled human trials are needed to document the usefulness of higher doses of epinephrine in cardiopulmonary resuscitation.

Pregnancy and childbirth: risk factors for homelessness?

A comparison of 704 homeless public assistance families in New York City with 524 families on public assistance who had housing found that pregnancy and recent births were highly correlated with becoming homeless. Thirty-five percent of homeless women were pregnant at the time of the interview, and 26 percent had given birth in the past year, compared with six percent and 11 percent, respectively, of women in the housed sample. In addition, having a baby before age 18 (as had 37 percent of the homeless women and 24 percent of the housed women) was significantly related to homelessness but family size was not.

Getting care: poor children and New York City hospitals.

In 1984, almost 10 million visits were made to New York City hospital emergency rooms and outpatient departments. Of these, nearly one-quarter were made by children. Almost nine out of ten children using hospital emergency rooms and outpatient departments were either poor or uninsured. Nearly 70 percent of emergency room visits by Medicaid-covered children in 1984 were made to voluntary hospitals, as compared with less than 40 percent of uninsured visits. Medicaid patients -- poor but uninsured -- are less likely than uninsured patients to visit the emergency room for non-urgent care. For example, in 1984, 35 percent of uninsured medical and surgical after-care visits were made to the emergency room, as compared with 13 percent of Medicaid-covered visits. The availability of primary care physicians in a neighborhood reduces the rate of outpatient department use by children covered by Medicaid, but has no affect on the utilization rates of uninsured children. Access to routine health care by uninsured children is limited by the number of municipal hospital sites, both because children seek care within their home community. More details from the study of poor children and New York City hospitals follow. Data sources and statistical methods are described in an appendix to this report.