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BACKGROUND: We sought to evaluate safety of electrical cardioversion (ECV) for patients with acute atrial fibrillation (AF) or atrial flutter (AFL) in the emergency department (ED). METHODS: This was an analysis of data from four multicentre AF/AFL studies conducted between 2008 and 2019 at 23 large EDs. We included adult patients who received attempts at ECV and who had presented acutely after symptom onset. Staff manually reviewed study and clinical records to abstract data. RESULTS: We evaluated 1,736 ECV cases with mean age 60.1 years and male 67.1%. The overall success of ECV was 90.2% (95% CI 88.7-91.6%) with 4.9% of patients admitted. ED physicians performed the ECV in 95.2% and provided sedation in 96.5%. 13.9% (12.3-15.7%) of cases experienced important adverse events that required treatment and 0.4% were classified life-threatening. Another 5.6% had adverse events that did not require treatment. Logistic regression found that the RAFF3 study cohort (OR 2.0), age ≥85 years (OR 2.1), coronary artery disease (OR 1.5), midazolam (OR 1.9), and fentanyl (OR 1.5) were associated with important adverse events. CONCLUSIONS: This large evaluation of the safety of ECV for acute AF/AFL in the ED found that while serious adverse events were rare, there were a concerning number of events following sedation that required intervention. Physicians should be aware that older age, coronary artery disease, and fentanyl are associated with a higher risk of important adverse events. This study provides more information for shared decision-making discussions with patients when choosing between drug-shock and shock-only cardioversion strategies.

Acute atrial flutter has one-tenth the prevalence of acute atrial fibrillation in the emergency department (ED) but shares many management strategies. Our aim was to compare conversion from acute atrial flutter to sinus rhythm between pharmacological cardioversion followed by electrical cardioversion (Drug-Shock), and electrical cardioversion alone (Shock-Only). We conducted a randomized, blinded, placebo-controlled comparison of attempted pharmacological cardioversion with IV procainamide followed by electrical cardioversion if necessary, and placebo infusion followed by electrical cardioversion. We enrolled stable patients with a primary diagnosis of acute acute atrial flutter at 11 academic EDs. The primary outcome was conversion to normal sinus rhythm. From July 2013 to October 2018, we enrolled 76 patients, and none were lost to follow-up. Comparing the Drug-Shock to the Shock-Only group, conversion to sinus rhythm occurred in 33 (100%) versus 40 (93%) (absolute difference 7.0%; 95% CI − 0.6 to 14.6; P = 0.25). Median time to conversion from start of infusion in the Drug-Shock group was 24 min (IQR 21–82) but only 9 (27%) cases were converted with IV procainamide. Patients in both groups had similar outcomes at 14 days; there were no strokes or deaths. This trial found that the Drug-Shock strategy is potentially superior but that either approach to immediate rhythm control in the ED for patients with acute acute atrial flutter is highly effective, rapid, and safe in restoring sinus rhythm and allowing patients to go home and return to normal activities. Unlike the case of atrial fibrillation, we found that IV procainamide alone was infrequently effective.

A large proportion of patients affected with hypertension go undetected. A systematic review was conducted to assess the performance of a screening strategy in adults using blood pressure measurement at the time of an emergency department consultation. A systematic literature search on Embase, CINHAL and Medline was carried out. This systematic review was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses-Diagnostic Test Accuracy. Intervention studies with adults including at least one blood pressure measurement for all participants were included. A repeat blood pressure assessment had to have been carried out to assess the validity of the elevated blood pressure value within the next few days after the emergency department initial visit. Out of 1030 articles identified, published between 1985 and 2018, 10 articles met the inclusion criteria. There were no randomized clinical trials. Mean age of participants was 51.6 years. A single study reports that blood pressure screening was measured according to hypertension guidelines referred to in the study. The average follow-up rate was 61.9% (95% confidence interval 45.5-78.3). For diagnostic confirmation, four studies used a blood pressure measurement method based on the reported guidelines. Half of the patients (50.2%) with elevated blood pressure during the emergency department visit had blood pressure corresponding to uncontrolled elevated blood pressure at follow-up measurement. The contribution of emergency department to the screening for hypertension, by recognizing the presence of elevated blood pressure and then making a referral for diagnostic confirmation, could provide an opportunity to detect a large number of people with hypertension.

Emergency department (ED) visits for high blood pressure are increasing in frequency. We aimed to map those patients' trajectory, from referral sources to the type of care received at the ED to anticipated actions for future high blood pressure concerns, and to better understand their reasons for consulting the ED for high blood pressure values.Between 2018 and 2020, patients who presented to the Montreal Heart Institute's ED for elevated blood pressure were recruited in a prospective observational study including a post hoc structured telephone interview and medical chart review. Five possible referral sources were predetermined. We provided proportions and 95% confidence intervals.A total of 100 patients were recruited (female: 59%, mean age: 69 ± 12). A majority (93%, 95% CI 88-98%) possessed a home blood pressure device, among which 46% (95% CI 36-56%) remembered receiving advice for its use. The main referral sources for high blood pressure to the ED were self-reference (53%, 95% CI 43-63%), advice of a lay person (19%, 95% CI 11-27%) or a nurse (13%, 95% CI 6-20%). Mainly, patients reported being concerned by concomitant symptoms or experiencing acute medical consequences (44%, 95% CI 34-54%), having followed the recommendation of a third party (33%, 95% CI 24-42%), or having concerns about their medication (6%, 95% CI 1-11%). Two weeks following their ED visits, consulting ED remained the main choice for future concerns about high blood pressure for 27% of participants. When specifically asked if they would return to the ED for elevated blood pressure, 73% (95% CI 64-83%) said yes.Most patients who consulted the ED for elevated blood pressure values were self-referred. More can be done to promote blood pressure education, effective use of personal blood pressure devices, and recommendations for patients and health professionals when confronted with high blood pressure results.RéSUMé: OBJECTIFS: Les visites aux services d'urgence pour hypertension artérielle (TA) sont de plus en plus fréquentes. Nous avons cherché à cartographier le parcours de ces patients, depuis les sources d'orientation jusqu'au type de soins reçus aux urgences, en passant par les mesures prévues en cas de problèmes futurs de tension artérielle élevée, et à mieux comprendre les raisons pour lesquelles ils consultent les urgences pour des valeurs de tension artérielle élevées. MéTHODES: Entre 2018 et 2020, les patients qui se sont présentés aux urgences de l'Institut de cardiologie de Montréal pour une TA élevée ont été recrutés dans le cadre d'une étude observationnelle prospective comprenant une entrevue téléphonique structurée post-hoc et un examen des dossiers médicaux. Cinq sources de référence possibles ont été prédéterminées. Nous avons fourni des proportions et des intervalles de confiance à 95 %. RéSULTATS: Au total, 100 patients ont été recrutés (femmes : 59 %, âge moyen : 69 ± 12). Une majorité (93%, IC à 95% 88-98%) possédait un tensiomètre à domicile, parmi lesquels 46% (IC à 95% 36-56%) se souvenaient avoir reçu des conseils pour son utilisation. Les principales sources d'orientation vers les urgences en cas de tension artérielle élevée étaient l'auto-référence (53 %, IC 95 % 43-63 %), le conseil d'un tiers non-professionnel de la santé (19 %, IC à 95 % 11-27 %) ou d'une infirmière (13 %, IC à 95 % 6-20 %). Principalement, les patients ont déclaré être préoccupés par des symptômes concomitants ou des conséquences médicales aiguës (44 %, IC à 95 %, 34-54 %), avoir suivi la recommandation d’un tiers (33 %, IC à 95 %, 24-42 %) ou avoir des préoccupations au sujet de leurs médicaments (6 %, IC à 95 %, 1-11 %). Deux semaines après leur visite au service d'urgence, la consultation du service d'urgence est restée le principal choix en cas de préoccupations futures concernant l'hypertension artérielle pour 27 % des participants. À la question spécifique de savoir s'ils retourneraient aux urgences pour une TA élevée, 73% (IC à 95% 64-83%) ont répondu oui. CONCLUSIONS: La plupart des patients qui ont consulté les urgences pour des valeurs élevées de la tension artérielle se sont adressés d'eux-mêmes. Il y a place à l'amélioration pour promouvoir l’éducation sur la TA, l’utilisation efficace des appareils de pression artérielle personnels et les recommandations aux patients et aux professionnels de la santé lorsqu’ils sont confrontés à des résultats élevés en matière de TA.

Evaluate the impact of 82-Rubidium positron emission tomography (PET) myocardial perfusion imaging (MPI) availability on patient management presenting at the emergency department (ED) with chest pain (CP).This is a single-center retrospective study of clinical databases. Patients presenting with CP with a non-definitive suspicion of acute coronary syndrome (ACS) at the ED between April 2016 and February 2020 were divided into 2 groups based on PET availability. The proportion of invasive coronary angiography (ICA) without significant coronary artery disease (CAD), length of stay (LoS), and additional downstream testing were evaluated.There were 21,242 ED visits for CP without definitive ACS: 5,492 when PET is not available and 15,750 when PET is available. When PET is available, proportion of patients undergoing a MPI study was greater (20.7% vs 17.6%, P0.0001), proportion of ICA without significant CAD was similar (18.5% vs 21.4%, P=0.24), and median ED LoS was shorter (16.6 vs 18.1 hours, P=0.03). Patients undergoing SPECT MPI had significantly more downstream testing (8.9% vs 6.4%, P=0.003) and a higher rate of coronary angiogram without significant CAD (21.2% vs 14.2%, P=0.09) compared to those who underwent PET MPI.Availability of PET MPI was associated with an increased number of MPI referral from the ED, similar rates of ICA without significant CAD, decreased LoS, and fewer downstream testing.Evaluar el impacto de la tomografía por emisión de positrones (PET) con 82-Rubidio y la disponibilidad de imágenes de perfusión miocárdica (MPI) en el manejo de los pacientes que se presentan en el servicio de urgencias (ED) con dolor torácico (CP). MéTODOS: Este es un estudio retrospectivo de bases de datos clínicas de un solo centro. Pacientes que presentaron CP con sospecha no definitiva de síndrome coronario agudo (ACS) en el ED entre abril de 2016 y febrero de 2020, se dividieron en 2 grupos según la disponibilidad de PET. Se evaluó la proporción de angiografía coronaria invasiva (ICA) sin enfermedad arterial coronaria (CAD) significativa, la duración de la estancia (LoS) y las pruebas posteriores adicionales.Hubo 21,242 visitas al ED por CP sin ACS definitivo: 5,492 cuando no se dispone de PET y 15.750 cuando se dispone de PET. Cuando se dispone de PET, la proporción de pacientes sometidos a estudio de MPI fue mayor (20.7% vs 17.6%, p=0.03). Los pacientes que se sometieron a SPECT MPI tuvieron significativamente más pruebas posteriores (8.9 % frente a 6.4 %, p = 0.003) y una tasa más alta de angiografía coronaria sin CAD significativa (21.2 % frente a 14.2 %, p = 0.09) en comparación con los que se sometieron a PET MPI. CONCLUSIóN: La disponibilidad de PET MPI se asoció con un mayor número de referencias de MPI desde el ED, tasas similares de ICA sin CAD significativa, disminución de LoS y menos pruebas posteriores.

We sought to improve care of patients with acute atrial fibrillation (AF) and flutter (AFL) in the emergency department (ED) by implementing the Canadian Association of Emergency Physicians (CAEP) Acute AF/AFL Best Practices Checklist.We conducted a stepped-wedge cluster randomised trial at 11 large community and academic hospital EDs in 5 Canadian provinces and enrolled consecutive AF/AFL patients. The study intervention was introduction of the CAEP Checklist with the use of a knowledge translation-implementation approach that included behaviour change techniques and organisation/system-level strategies. The primary outcome was length of stay in ED, and secondary outcomes were discharge home, use of rhythm control, adverse events, and 30-day status. Analysis used mixed-effects regression adjusting for covariates.Patient visits in the control (n = 314) and intervention (n = 404) periods were similar with mean age 62.9 years, 54% male, 71% onset12 hours, and 86% AF, 14% AFL. We observed a reduction in length of stay of 20.9% (95% confidence interval [CI] 5.5%-33.8%; P = 0.01), an increase in use of rhythm control (adjusted odds ratio [OR] 4.5, 95% CI 1.8-11.6; P = 0.002), and a decrease in use of rate-control medications (OR 0.5, 95% CI 0.2-0.9; P = 0.02). There was no change in adverse events and no strokes or deaths by 30 days.The RAFF-3 trial led to optimised care of AF/AFL patients with decreased ED lengths of stay, increased ED rhythm control by drug or electricity, and no increase in adverse events. Early cardioversion allows AF/AFL patients to quickly resume normal activities.

Introduction Geriatric emergency department (ED) care has gained increasing importance and interest due to increasing visits in seniors. Aim Among ED front-line nurses and physicians, to assess and compare ratings of elder-friendly care process indicators, variability in ratings, and concurrent validity of ratings. Methods Four Quebec EDs’ full-time registered nurses and physicians rated their geriatric care using 9 subscales. Nurse and physician subscale scores were compared. Inter-rater variability within disciplines and variability between nurses and physicians were measured. Associations between the subscale scores and perceived overall quality of care were tested. Results 38 nurses and 36 physicians completed the survey (83% of 89 eligible). Scores differed by discipline for 3 of 9 subscales computed; nurses had higher mean scores on Protocols, Family-Centered Discharge, and Staff Education. Very high variation for Staff Education was found within disciplines. Variations for Family-Centered Discharge differed significantly between nurses and physicians. Almost all subscale scores were significantly positively associated with perceived overall quality of care. Conclusions ED nurses and physicians rate geriatric care components similarly except for protocols, discharge processes, and continuing education. The subscales have concurrent validity. Results suggest a need for improvement in continuing educational strategies with a particular attention to discharge processes.

Patients suffering from out-of-hospital cardiac arrest (OHCA) are frequently transported to the closest hospital. Percutaneous coronary intervention (PCI) is often indicated following OHCA. This study's primary objective was to determine the association between being transported to a PCI-capable hospital and survival to discharge for patients with OHCA. The additional delay to hospital arrival which could offset a potential increase in survival associated with being transported to a PCI-capable center was also evaluated.This study used a registry of OHCA in Montreal, Canada. Adult patients transported to a hospital following a non-traumatic OHCA were included. Hospitals were dichotomized based on whether PCI was available on-site or not. The effect of hospital type on survival to discharge was assessed using a multivariable logistic regression. The added prehospital delay which could offset the increase in survival associated with being transported to a PCI-capable center was calculated using that regression.A total of 4922 patients were included, of whom 2389 (48%) were transported to a PCI-capable hospital and 2533 (52%) to a non-PCI-capable hospital. There was an association between being transported to a PCI-capable center and survival to discharge (adjusted odds ratio = 1.60 [95% confidence interval 1.25-2.05], p .001). Increasing the delay from call to hospital arrival by 14.0 min would offset the potential benefit of being transported to a PCI-capable center.It could be advantageous to redirect patients suffering from OHCA patients to PCI-capable centers if the resulting expected delay is of less than 14 min.

Objective During the COVID-19 pandemic, social distancing and self-isolation called for innovative, readily implementable, and effective short-term health solutions. The objective of this study was to assess the feasibility of self-assessment of vital signs and symptoms with electronic transmission of results, by self-isolating individuals with positive SARS-CoV-2 polymerase chain reaction (PCR) test. The secondary objective was to describe the association between the presence of abnormal vital signs and severe symptoms as well as their evolution over time. Method Participants with positive SARS-CoV-2 PCR test were asked to perform twice daily standardized vital signs measurements and self-assessment of symptoms for 14 consecutive days. All data were transmitted electronically through a mobile application and a web-based platform. Participants were provided with decision support tools based on the severity of their condition and a weekly nurse practitioner telephone follow-up. Abnormal values for vital signs and severe symptoms were determined. Per participant and per days, proportions of abnormal vital signs and severe symptoms were calculated. Results Data from 46 participants (mean age 54.1 ± 6.9 years, 54% male) were available for analysis. On average, participants performed the standardized self-assessment for 12.3 ± 3.4 days (89% performed at least 7 measurement days and 61% completed all 14 days). The highest proportions abnormal values for vital signs were for oximetry (20.1%) and respiratory rate (12.1%). The highest proportions of severe symptoms were for fatigue (16.9%) and myalgia. (10.2%). The combined proportion of abnormal vital signs and severe symptoms was maximal on day 1 with 20.3% of total measurements, with a linear decrease to 3.5% on day 14. Conclusion Remote initiation of home measurements of vital signs and symptoms, self-management of these measures, accompanied by a decision support tool and supported by preplanned nurse follow-up are feasible. This could allow to opening up new insight for the care of sick individuals.

Objectives To develop and validate a comprehensive quality assessment tool for emergency department (ED) geriatric care. Design Four-step study: (1) Content development of tool by a multidisciplinary panel, (2) survey of ED lead physicians and nurses, (3) development of subscales using principal component analysis and clinical judgment, (4) reliability and validity assessment. Setting Province of Quebec, Canada. Participants Lead ED nurses and physicians at 76 Quebec EDs who participated in a 2013/14 survey (66% of 116 adult nonpsychiatric EDs in the province). Measurements Geriatric care items (n = 62) grouped into seven preliminary content areas (screening and assessment, clinical protocols, discharge planning, staffing, physical environment, continuing education, quality assessment), lead nurse and physician perceptions of the quality of ED geriatric care, institutional prioritization of geriatric care, and ED type. Results Thirteen subscales were developed; most were associated with ED type and quality indicators. Conclusion Thirteen subscales for geriatric ED services are proposed for evaluation in various ED settings.

Background/Objectives To describe changes in geriatric emergency department (ED) services from 2006 (T1) to 2013/14 (T2), associated factors, and outcomes. Design Two-wave survey design. Setting Province of Quebec, Canada. Participants Lead nurses and physicians at 57 EDs that participated in both the T1 and T2 surveys. Intervention Changes over time in ED geriatric services, observed naturalistically. Measurements Survey questionnaires assessed: ED geriatric services (11 items) and nursing and geriatric staffing resources. Key administrative data indicators for ED bed visits for T1 and T2 for ages 75 and over included: volume of ED visits; length of ED stay; admission rate; and 30-day return visits. Results There was a significant overall increase in the number ED geriatric services, from mean 2.8 (SD 2.2) at T1 to mean 6.0 (SD 2.0) at T2. EDs were clustered into 3 groups based on their T1 and T2 geriatric service scores: “early adopters” (n = 12); “late adopters” (n = 27); “non-adopters” (n = 18). Group membership was associated with three T1 variables: availability of a geriatric nurse clinician, a lower ratio of nurses to ED beds, and longer ED stays. There were significant overall increases between T1 and T2 in number of ED bed visits and ED length of stay among those aged 75 and over, decreases in hospitalization rates, but no change in ED return visits. There were no differential changes in the key indicators among the three ED clusters. Conclusions Overall, ED geriatric services improved in Quebec from 2006 to 2013/14. EDs with a geriatric nurse clinician, relatively fewer nursing resources, and longer ED stays improved more quickly.

Summary Background Acute atrial fibrillation is the most common arrythmia treated in the emergency department. Our primary aim was to compare conversion to sinus rhythm between pharmacological cardioversion followed by electrical cardioversion (drug–shock), and electrical cardioversion alone (shock-only). Our secondary aim was to compare the effectiveness of two pad positions for electrical cardioversion. Methods We did a partial factorial trial of two protocols for patients with acute atrial fibrillation at 11 academic hospital emergency departments in Canada. We enrolled adult patients with acute atrial fibrillation. Protocol 1 was a randomised, blinded, placebo-controlled comparison of attempted pharmacological cardioversion with intravenous procainamide (15 mg/kg over 30 min) followed by electrical cardioversion if necessary (up to three shocks, each of ≥200 J), and placebo infusion followed by electrical cardioversion. For patients having electrical cardioversion, we used Protocol 2, a randomised, open-label, nested comparison of anteroposterior versus anterolateral pad positions. Patients were randomly assigned (1:1, stratified by study site) for Protocol 1 by on-site research personnel using an online electronic data capture system. Randomisation for Protocol 2 occurred 30 min after drug infusion for patients who had not converted and was stratified by site and Protocol 1 allocation. Patients and all research and emergency department staff were masked to treatment allocation for Protocol 1. The primary outcome was conversion to normal sinus rhythm for at least 30 min at any time after randomisation and up to a point immediately after three shocks. Protocol 1 was analysed by intention to treat and Protocol 2 excluded patients who did not receive electrical cardioversion. This study is registered at ClinicalTrials.gov, number NCT01891058. Findings Between July 18, 2013, and Oct 17, 2018, we enrolled 396 patients, and none were lost to follow-up. In the drug–shock group (n=204), conversion to sinus rhythm occurred in 196 (96%) patients and in the shock-only group (n=192), conversion occurred in 176 (92%) patients (absolute difference 4%; 95% CI 0–9; p=0·07). The proportion of patients discharged home was 97% (n=198) versus 95% (n=183; p=0·60). 106 (52%) patients in the drug–shock group converted after drug infusion only. No patients had serious adverse events in follow-up. The different pad positions in Protocol 2 (n=244), had similar conversions to sinus rhythm (119 [94%] of 127 in anterolateral group vs 108 [92%] of 117 in anteroposterior group; p=0·68). Interpretation Both the drug–shock and shock-only strategies were highly effective, rapid, and safe in restoring sinus rhythm for patients in the emergency department with acute atrial fibrillation, avoiding the need for return to hospital. The drug infusion worked for about half of patients and avoided the resource intensive procedural sedation required for electrical cardioversion. We also found no significant difference between the anterolateral and anteroposterior pad positions for electrical cardioversion. Immediate rhythm control for patients in the emergency department with acute atrial fibrillation leads to excellent outcomes. Funding Heart and Stroke Foundation of Canada and the Canadian Institutes of Health Research.

ObjectivesPatients suffering from an out-of-hospital cardiac arrest (OHCA) associated with an initial shockable rhythm have a better prognosis than their counterparts. The implications of recurrent or refractory malignant arrhythmia in such context remain unclear. The objective of this study is to evaluate the association between the number of prehospital shocks delivered and survival to hospital discharge among patients in OHCA.MethodsThis cohort study included adult patients with an initial shockable rhythm over a 5-year period from a registry of OHCA in Montreal, Canada. The relationship between the number of prehospital shocks delivered and survival to discharge was described using dynamic probabilities. The association between the number of prehospital shocks delivered and survival to discharge was assessed using multivariable logistic regression.ResultsA total of 1,788 patients (78% male with a mean age of 64 years) were included in this analysis, of whom 536 (30%) received treatments from an advanced care paramedic. A third of the cohort (583 patients, 33%) survived to hospital discharge. The probability of survival was highest with the first shock (33% [95% confidence interval 30%-35%]), but decreased to 8% (95% confidence interval 4%-13%) following nine shocks. A higher number of prehospital shocks was independently associated with lower odds of survival (adjusted odds ratio=0.88 [95% confidence interval 0.85-0.92], p < 0.001).ConclusionSurvival remains possible even after a high number of shocks for patients suffering from an OHCA with an initial shockable rhythm. However, requiring more shocks is independently associated with worse survival.

KEY POINTS As calls for universal pharmacare across Canada become stronger and models for its delivery are considered, it is worth looking at whether Quebec’s current system of drug coverage could serve as a model for the rest of the country. Canada is the only high-income country with a universal

Objectives The associations between emergency department (ED) crowding and patient outcomes have not been investigated comprehensively in different types of ED. The study objective was to examine the associations of changes over time in ED occupancy with patient outcomes in a sample of EDs that vary by size and location. A secondary objective was to explore whether the relationship between ED occupancy and patient outcomes differed by ED characteristics (size/type and medical and nursing staffing ratios). Methods Using linked administrative databases, the authors constructed a cohort of 677,475 patients who visited one of 42 hospital EDs with complete data for 2005 on ED bed and waiting room occupancy. Crowding was measured with the relative occupancy ratio separately for ED bed and waiting room patients, defined as the ratio of ED occupancy on the day of the index ED visit to the average annual occupancy at that same ED. Multivariable logistic regression (adjusting for patient and ED characteristics) was used to analyze 30-day outcomes: mortality, return ED visits, and hospital admission at the first return ED visit. Results After adjustment for ED and patient characteristics, a 10% increase in ED bed relative occupancy ratio was associated with 3% increases in death and hospital admission at a return visit. A 10% increase in ED waiting room crowding was associated with a small decrease in return visits. There was a stronger association between bed crowding and mortality among larger EDs. Conclusions In Quebec EDs, increases in bed occupancy are associated with an increase in the rates of 30-day adverse outcomes, even after adjustment for patient and ED characteristics. The results raise important concerns about the quality of care during periods of ED crowding. Resumen Objetivos Las asociaciones entre la saturacion del Servicio de Urgencias (SU) y los resultados de los pacientes no se han investigado totalmente en los diferentes tipos de SU. El objetivo fue examinar las asociaciones de los cambios a lo largo del tiempo en la ocupacion del SU con los resultados del pacientes en una muestra de SU que varian en tamano y localizacion. Un objetivo secundario fue explorar si la relacion entre la ocupacion del SU y los resultados del paciente difieren por las caracteristicas del SU (tamano/tipo) y las proporciones de enfermeras y medicos. Metodologia Mediante bases de datos administrativas vinculadas, se construyo una cohorte de 677.475 pacientes que visitaron uno de los 42 SU hospitalarios con datos completos para el 2005 respecto a ocupacion de cama de urgencias y sala de espera. La saturacion se midio con la razon de ocupacion relativa de forma separada para la cama del SU y los pacientes en la sala de espera, definida como la razon de ocupacion del SU en el dia de la visita al SU indice y el promedio anual de ocupacion del mismo SU. Se utilizo una regresion logistica multivariable (ajustada al paciente y las caracteristica del SU) para analizar los resultados a los 30 dias: mortalidad, revisitas al SU e ingreso hospitalario en la primera revisita al SU. Resultados Tras ajustar por las caracteristicas del paciente y del SU, un incremento de un 10% en la razon de ocupacion relativa de cama del SU se asocio con un incremento de un 3% en la mortalidad e ingreso hospitalario en la revisita. Un incremento de un 10% en la saturacion de la sala de espera del SU se asocio con un pequeno descenso en las revisitas. Hubo una mayor asociacion entre saturacion de camas y mortalidad en los SU mas grandes. Conclusiones En los SU en Quebec, los incrementos en la ocupacion de camas se asocian con un incremento en las frecuencias de resultados adversos a los 30 dias, incluso tras el ajuste por las caracteristicas del paciente y del SU. Estos resultados plantean cuestiones importantes sobre la calidad de la atencion durante los periodos de saturacion del SU.

Introduction: For rhythm control of acute atrial fibrillation (AAF) in the emergency department (ED), choices include initial drug therapy or initial electrical cardioversion (ECV). We compared the strategies of pharmacological cardioversion followed by ECV if necessary (Drug-Shock), and ECV alone (Shock Only). Methods: We conducted a randomized, blinded, placebo-controlled trial (1:1 allocation) comparing two rhythm control strategies at 11 academic EDs. We included stable adult patients with AAF, where onset of symptoms was Results: Of 395 randomized patients, 18 were excluded from the MITT analysis; none were lost to follow-up. The Drug-Shock (N = 198) and Shock Only (N = 180) groups (total = 378) were similar for all characteristics including mean age (60.0 vs 59.5 yrs), duration of AAF (10.1 vs 10.8 hrs), previous AF (67.2% vs 68.3%), median CHADS2 score (0 vs 0), and mean initial heart rate (119.9 vs 118.0 bpm). More patients converted to normal sinus rhythm in the Drug-Shock group (97.0% vs 92.2%; absolute difference 4.8%, 95% CI 0.2-9.9; P = 0.04). The multivariable analyses confirmed the Drug-Shock strategy superiority (P = 0.04). There were no statistically significant differences for time to conversion (91.4 vs 85.4 minutes), total ED length of stay (7.1 vs 7.7 hours), disposition home (97.0% vs 96.1%), and stroke within 14 days (0 vs 0). Premature discontinuation of infusion was more common in the Drug-Shock group (8.1% vs 0.6%) but there were no serious adverse events. Conclusion: Both the Drug-Shock and Shock Only strategies were highly effective and safe in allowing AAF patients to go home in sinus rhythm. A strategy of initial cardioversion with procainamide was superior to a strategy of immediate ECV.

The prehospital electrocardiogram (ECG) allows earlier identification of acute ST-segment elevation myocardial infarction (STEMI). Its utility for detection of other acute cardiac events, as well as for transient ST-segment abnormalities no longer present when the first hospital ECG is performed, is not well characterized.We sought to examine whether the prehospital ECG adds supplemental information to the first ECG obtained in hospital, by comparing data on possible cardiac ischemia and arrhythmias provided by the two ECGs, in ambulance patients later diagnosed as having cardiac disorders, including STEMI.Ambulance personnel acquired 12-lead ECGs for patients suspected of having an acute ischemic event, prior to transport to hospital. The first emergency department 12-lead ECG was provided by medical records at the receiving hospital, and the principal hospital diagnosis for the event was extracted from chart data. Two cardiologists, blinded to the hospital diagnosis, provided their consensus interpretation of 1,209 pairs of ECGs, noting the presence or absence of specific abnormalities on each tracing.Among the 82 patients who had an eventual hospital diagnosis of STEMI, the study cardiologists identified 71 with ST-segment elevations on the ECGs they examined. The vast majority of these (97%) were observed on both ECGs, but the prehospital ECG showed ST-segment elevation for two additional patients (3%). No additional instances were seen only on the hospital ECG. Among the 116 patients with a hospital diagnosis of non-ST-segment elevation myocardial infarction (NSTEMI), the cardiologists identified 36 with ST-segment depressions: 28 (78%) of these were present on both ECGs, seven (19%) only on the prehospital ECG, and one (3%) only on the hospital ECG. Among the 567 patients with any cardiac hospital diagnosis, the cardiologists identified 87 with arrhythmias: 73 (84%) on both ECGs, 12 (14%) only on the prehospital ECG, and two (2%) only on the hospital ECG.Beyond identifying ST-segment elevation earlier, prehospital ECGs detect important transient abnormalities, information not otherwise available from the first emergency department ECG. These data can expedite diagnosis and clinical management decisions among patients suspected of having an acute cardiac event. The prehospital ECG should be fully integrated into emergency medicine practice.

Objective The aim was to assess the efficacy of two brief cognitive–behavioral therapy (CBT)-based interventions (7×1-h sessions and 1×2-h session) and a pharmacological treatment (paroxetine), compared to supportive usual care, initiated in the emergency department (ED) for individuals suffering from panic disorder (PD) with a chief complain of noncardiac chest pain (NCCP). We hypothesized that the interventions would be more efficacious than supportive usual care on all outcomes. Method A 12-month follow-up study of patients who received a diagnosis of NCCP in the ED and who met diagnostic criteria for PD ( n =71) was performed. Assessments included several psychological questionnaires and a structured interview. A series of repeated-measures analyses of variances, using a split-plot design, were conducted, as well as planned comparisons to examine the differences. Results The seven-session CBT ( n =19), one-session panic management ( n =24) and pharmacotherapy ( n =13) led to greater improvements in PD severity (primary outcome) compared to supportive usual care ( n =15) at posttest, and no significant difference was noted between the three active interventions. On the other measures, patients improved in all conditions, and the therapeutic gains were maintained up to 1 year following the visit to the ED. Conclusions These results suggests that early intervention, in particular seven sessions of CBT, one session of PM or pharmacotherapy (generic paroxetine), should be considered for the treatment of PD patients consulting the ED with a discharge diagnosis of NCCP.

Objectives: To develop and conduct a preliminary validation of selected subscales of an elder-friendly emergency department (ED) assessment tool. Design: Content validation of tool by an international panel. Construct validation using care ratings of ED lead physicians and nurses. Setting: Quebec, Canada. Participants: The international panel comprised 34 clinicians, administrators, and researchers. The construct validation was based on a 2006 survey of ED lead physicians and nurses at all 103 EDs in the province, of whom 68 (66%) supplied complete data. Measurements: The initial tool included five subscales: ED staffing, screening and assessment, discharge planning, community services, and care philosophy. Differences in subscale scores were examined according to ED size, and of these scores were correlated with care ratings made by lead physicians and nurses. Results: The average scores for three subscales (ED staffing, discharge planning, and community services) varied according to ED size. After adjustment for ED size, three subscales (screening and assessment, discharge planning, and community services) were correlated with ED nurse or physician care ratings. A preliminary tool, taking into account all factors, is proposed. Conclusion: This study provides preliminary evidence of the validity of three subscales of the proposed elder-friendly ED assessment tool. Results suggest that ED size should be considered in interpreting these subscales. Further evaluation and validation of the proposed tool will be needed to further its utility in helping to focus the quality improvement efforts of clinicians, managers, and administrators related to the care they provide older adults.

ACADEMIC EMERGENCY MEDICINE 2012; 19: 552–561 © 2012 by the Society for Academic Emergency Medicine Abstract Objectives: The goal was to develop a classification of emergency departments (EDs) based on their organization of services for seniors discharged to the community. Methods: This was a secondary analysis of data collected in a survey of key informants (chief physicians and head nurses) in EDs in Quebec on the organization of services for community-dwelling seniors discharged to the community. Organizational characteristics were classified a priori in the following three categories: 1) availability of human resources, 2) care processes, and 3) links to community services. A multifactorial analysis (MFA) was used to analyze the variables by category and globally, thus investigating not only the relationships between variables within each category, but also the relationships between different categories. The authors then proceeded to classify EDs using Ward’s method (hierarchical ascendant classification) applied to reduced data dimensions. Results: The sample consisted of 103 EDs. Analyses were carried out on data from the 68 (66%) of these EDs that supplied complete data. These 68 EDs did not differ in terms of their size or geographical location from the 35 other departments that supplied incomplete or no data. We identified three groups of EDs: most specialized (with regard to internal staff and care processes) and less community-oriented (n = 12), moderately specialized and less community-oriented (n = 28), and least specialized and more community-oriented (n = 28). Conclusions: This classification of EDs with respect to their organization of services for community-dwelling seniors may be helpful to those planning services, to decision-makers, and to researchers. The three groups of EDs identified in this study represent three types of organizations with differing assets and limitations. The generalizability of these groups to other settings and the implications for patient outcomes should be investigated.

ACADEMIC EMERGENCY MEDICINE 2012; 19:304–312 © 2012 by the Society for Academic Emergency Medicine Abstract Objectives: The specific objectives were: 1) to compare the characteristics and 6-month outcomes of community-dwelling seniors in Quebec, Canada, who visited three different emergency department (ED) types and 2) to explore whether the differences in outcomes by ED type were seen among subgroups of seniors. Methods: The three types of ED were most specialized, less community-oriented (n = 12); moderately specialized, less community-oriented (n = 28); and least specialized, more community-oriented (n = 28). Administrative databases were used to create a cohort of 223,120 seniors who visited these 68 EDs during a 14-month period. Using a multilevel approach, the following patient characteristics were compared across ED types: sociodemographic (age, sex, urban vs. rural residence, proximity to ED); medical diagnoses and comorbidity burden; and utilization of hospital and physician services during the 16 months before the index ED visit. Cox regression analysis was used to model the relationships between ED type and two 6-month outcomes, adjusting for patient characteristics: 1) serious outcomes (death, acute or long term-care admission) among all individuals who made an index visit and 2) outpatient ED visits (without hospital admission) among those discharged either from the ED or hospital. Interactions between ED type and patient age, sex, urban–rural residence, and comorbidity burden were explored. Results: Compared to patients treated at the least specialized EDs, those at the most specialized EDs were more often urban-dwelling, resided outside the health service area of the ED, and had the highest disease burden and prior specialist utilization. Those treated at the moderately specialized EDs were intermediate between these two groups. During the 6 months after the ED visit, the rate of serious outcomes was higher and the rate of outpatient ED visits was lower for the most specialized compared to the least specialized EDs, even after adjustment for patient characteristics. The differences in these outcomes by ED type were attenuated among older patients and those with greater comorbidity. Conclusions: More vulnerable community-dwelling seniors tend to be treated in more specialized EDs, which have worse linkages to community services. Improved linkages between more specialized EDs and the community (physicians, home care, and other services) and increased access to community services may improve outcomes in this population. Seniors treated at more specialized EDs were more likely to experience serious outcomes, but were less likely to make a return outpatient ED visit.

Background Brief and efficacious interventions for panic disorder (PD) in patients presenting to emergency departments (EDs) for chest pain are essential. This study assessed the effects of 2 interventions for this population: a brief cognitive-behavioral therapy delivered by psychologists, and a 6-month pharmacologic treatment initiated and managed by the ED physician. The relative efficacy of both interventions was also examined. Materials and Methods Forty-seven adult patients meeting the diagnostic criteria for PD upon presentation to the ED were assigned to 1 of 3 experimental conditions: a brief cognitive-behavioral therapy (7 sessions), a pharmacologic intervention (paroxetine; 6 months); and a usual care control condition. The primary outcome was severity of PD on Anxiety Disorder Interview Schedule for Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition , and secondary outcomes included measures of PD symptoms, depressive symptoms, and cardiac anxiety. Outcome measures were taken at baseline, postintervention, as well as at 3- and 6-month follow-ups. Results Patients receiving either intervention demonstrated significant reductions of PD severity ( P = .012), frequency of panic attacks ( P = .048), and depressive symptoms ( P = .027). Conclusion Taken together, these findings suggest that empirically validated interventions for PD initiated in an ED setting can be feasible and efficacious, and future studies should assess their impact on both the direct (ie, health care utilization) and indirect (ie, lost productivity) costs associated with PD morbidity in this population.

Background: Panic disorder (PD) is a common, often unrecognized condition among patients presenting with chest pain to the emergency departments (ED). Nevertheless, psychological treatment is rarely initiated. We are unaware of studies that evaluated the efficacy of brief cognitive-behavioural therapy (CBT) for this population.Aim: Evaluate the efficacy of two brief CBT interventions in PD patients presenting to the ED with chest pain.Method: Fifty-eight PD patients were assigned to either a 1-session CBT-based panic management intervention (PMI) (n= 24), a 7-session CBT intervention (n= 19), or a usual-care control condition (n= 15). A structured diagnostic interview and self-reported questionnaires were administered at pre-test, post-test, 3- and 6-month follow-ups.Results:Statistical analysis showed significant reduction in PD severity following both interventions compared to usual care control condition, but with neither showing superiority compared to the other.Conclusions: CBT-based interventions as brief as a single session initiated within 2 weeks after an ED visit for chest pain appear to be effective for PD. Given the high prevalence of PD in emergency care settings, greater efforts should be made to implement these interventions in the ED and/or primary care setting.

Background: An emergency department (ED) visit may be a marker for limited access to primary medical care, particularly among those with ambulatory care sensitive chronic conditions (ACSCC). Objectives: In a population with universal health insurance, to examine the relationships between primary care characteristics and location of last general physician (GP) contact (in an ED vs. elsewhere) among those with and without an ACSCC. Research Design: A cross-sectional survey using data from 2 cycles of the Canadian Community Health Survey carried out in 2003 and 2005. Subjects: The study sample comprised Quebec residents aged 18 who reported at least one GP contact during the previous 12 months, and were not hospitalized (n 33,491). Measures: The primary outcome was place of last GP contact: in an ED versus elsewhere. Independent variables included the following: lack of a regular physician, perceived unmet healthcare needs, perceived availability of health care, number of contacts with doctors and nurses, and diagnosis of an ACSCC (hypertension, heart disease, chronic respiratory disease, diabetes). Results: Using multiple logistic regression, with adjustment for sociodemographic, health status, and health services variables, lack of a regular GP and perceptions of unmet needs were associated with last GP contact in an ED; there was no interaction with ACSCC or other chronic conditions. Conclusions: Primary care characteristics associated with GP contact in an ED rather than another site reflect individual characteristics (affiliation with a primary GP and perceived needs) rather than the geographic availability of healthcare, both among those with and without chronic conditions.

Study objective This study aims to develop and validate measures of experiences of an emergency department (ED) visit suitable for use by older adults or their family members. Methods A cohort of patients aged 75 years and older who were discharged home was recruited at 4 EDs. At 1 week after the visit, patients or family members were interviewed by telephone to assess problems experienced at the visit. Twenty-six questions based on 6 domains of care found in the literature were developed: 16 questions were administered to all patients; 10 questions were administered to bed patients only. Scales were developed with multiple correspondence analysis. Regression analyses were used to validate the scales, using 2 validation criteria: perceived overall quality of care and willingness to return to the same ED. Results Four hundred twelve patients completed the 1-week interview, 197 ambulatory and 215 bed patients; family members responded for 75 patients. Two scales were developed, assessing personal care and communication (8 questions; α=.63) and waiting times (2 questions; α=.79). Both scales were significantly independently associated with perceived overall quality of care and willingness to return to the same ED. Conclusion Two scales assessing important aspects of ED care experienced by older adults are ready for further evaluation in other settings.

Introduction: Les patients souffrant dun arrêt cardiaque extra hospitalier (ACEH) sont fréquemment traités à laide de soins avancés en réanimation cardiovasculaire (SARC). Dans ce contexte, des bicarbonates de sodium sont parfois administrés à des patients en arrêt cardiaque réfractaire chez qui une acidose métabolique importante, une hyperkaliémie ou une intoxication est suspectée. Puisquil ny a que peu dévidences quant à cet usage, lobjectif de la présente étude est dévaluer lassociation entre le traitement à laide de bicarbonate de sodium (une dose ou plus) et le devenir (retour de circulation spontané et survie au congé) chez les patients souffrant dun ACEH. Methods: La présente étude de cohorte a été réalisée à partir des bases de données de la Corporation dUrgences-santé dans la région de Montréal entre 2010 et 2015. Les patients adultes ayant souffert dun ACEH dorigine médicale traités en préhospitalier par des paramédics de soins avancés prodiguant des SARC ont été inclus. Les associations dintérêt ont été évaluées initialement à laide de régressions logistiques univariées, puis à laide de régressions logistiques multivariées ajustant pour les variables sociodémographiques et cliniques pertinentes. Results: Un total de 1973 patients (1349 hommes et 683 femmes) dun âge moyen de 66 ans (±17) ont été inclus dans cette étude, parmi lesquels 77 (3,8%) ont reçu une dose de bicarbonate, 763 (37,5%) ont retrouvés un pouls en préhospitalier et 222 (10,9%) ont survécu jusquà leur congé de lhôpital. Sans ajustement, il y avait une association négative entre le traitement à laide de bicarbonates et le retour de circulation spontané (rapport de cotes [RC]=0,46 [intervalle de confiance {IC} 95% 0,27-0,79], p=0,005) et la survie au congé (RC=0,21 [IC 95% 0,05-0,86], p=0,030). Cependant, ces associations nétaient plus significatives suite à lajustement pour les autres covariables (RC ajusté=0,63 [IC 95% 0,34-1,18], p=0,15 et RC ajusté=1,69 [95% IC 0,29-10,01], p=0,56). Conclusion: Il ny a pas dassociation indépendante entre le traitement à laide de bicarbonates et le devenir chez les patients souffrant dun ACEH. Dans ce contexte, il serait adéquat de réaliser un essai clinique afin de trancher définitivement sur cette question.

ObjectivesTo explore hospital characteristics and indicators of emergency department (ED) care of older patients associated with return visits to the ED. MethodsProvincial databases in the province of Quebec, Canada, and a survey of ED geriatric services were linked at the individual and hospital level, respectively. All general acute care adult hospitals with at least 100 eligible patients who visited an ED during 2001 were included (N= 80). The study population (N= 140,379) comprised community-dwelling individuals aged 65 years and older who made an initial ED visit in 2001 and were discharged home. Characteristics of the hospitals included location, number of ED beds, ED resources, and geriatric services in the hospital and the ED. Indicators of ED care at the initial visit included day of the visit, availability of hospital beds, and relative crowding. The main outcome was time to first return ED visit; the authors also analyzed the type of return visit (with or without hospital admission at return visit, and return visits within seven days). ResultsIn multilevel multivariate analyses adjusting for patient characteristics (sociodemographic, ED diagnosis, comorbidity, prior health services utilization), the following variables were independently associated (p < 0.05) with a shorter time to first return ED visit: more limited ED resources, fewer than 12 ED beds, no geriatric unit, no social worker in the ED, fewer available hospital beds at the time of the ED visit, and an ED visit on a weekend. ConclusionsIn general, more limited ED resources and indicators of ED care (weekend visits, fewer available hospital beds) are associated with return ED visits in seniors, although the magnitude of the effects is generally small.

ObjectiveTo determine whether a nursing intervention delivered at emergency department (ED) discharge would reduce ED revisits.MethodA randomized study was conducted in the ED of a tertiary cardiac hospital in Montreal, Quebec. Between November 2006 and March 2010, 3,795 patients were assessed for eligibility based on two risk factors for ED revisits (≥1 ED visit in the past year and ≥6 medications); 132 were randomized to the experimental group (EG) and 133 to the control group (CG). The intervention included one nurse-patient meeting before leaving the ED, with two additional telephone contacts over the next 2 weeks. The primary outcome was time to ED revisits within 30 days after discharge. Secondary outcomes included time to ED revisits over 90, 180, and 365 days and hospitalizations over 30, 90, 180, and 365 days.ResultsA planned interim analysis that stopped the study with half of the planned sample showed that the time to ED revisits was similar in both groups at 30 days (p=0.81; revisits: 18.2% in EG, 19.6% in CG), 90 days (p=0.44), 180 days (p=0.98), and 365 days (p=0.75). The only difference identified was a lower hospitalization proportion at 180 days in the EG group (13.6% v. 24.1%; p=0.038).ConclusionsThese findings are consistent with previous research showing that few ED-based interventions are successful in reducing ED returns. Factors other than those targeted by the intervention, including an improvement in usual care, may explain the findings.

Introduction: Patients suffering from out-of-hospital cardiac arrest (OHCA) are frequently transported to the closest hospital after return of spontaneous circulation (ROSC). Percutaneous coronary intervention (PCI) is often indicated as a diagnostic and therapeutic procedure following OHCA. This study aimed to determine the association between the type of destination hospital (PCI-capable or not) and survival to discharge for patients with OHCA and prehospital ROSC. We hypothesized that being transported to a PCI-capable hospital would be associated with a higher survival to discharge. Methods: The present study used a registry of adult OHCA between 2010 and 2015 in Montréal, Canada. We included adult patients with non-traumatic OHCA and prehospital ROSC. The association of interest was evaluated with a multivariate logistic regression model to control for demographic and clinical variables (age, gender, time of day, initial rhythm, witnessed arrest, bystander CPR, presence of first responders or advanced care paramedics, prehospital supraglottic airway placement, delay before paramedics’ arrival). Assuming a survival rate of 40% and 75% of the variability explained by other factors included in the model, more than 1200 patients needed to be included to detect an absolute difference of 10% in survival between both groups with a power of more than 90%. Results: A total of 1691 patients (1140 men and 551 women) with a mean age of 64 years (standard deviation 17) were included, of which 1071 (63%) were transported to a PCI-capable hospital. Among all patients, 704 patients (42%) survived to hospital discharge. We observed a significant independent association between survival to discharge and being transported to a PCI-capable hospital (adjusted odds ratio [AOR] 1.46 [95% confidence interval 1.09-1.96]) after controlling for confounding variables. Having an initial shockable rhythm and presence of first responders also increased survival to discharge (AORs 3.67 [95% confidence interval 2.75-4.88] and 1.53 [95% confidence interval 1.12-2.09], respectively). Conclusion: Patients experiencing ROSC after OHCA could benefit from a direct transport to a PCI-capable hospital. This benefit might also be related to unmeasured interventions other than PCI these hospitals can provide (e.g. high-level intensive care or cardiovascular surgery).

Resume La pratique de la sedation-analgesie d’intervention est de plus en plus reconnue comme un champ d’expertise propre de la medecine d’urgence contemporaine. La pratique de la sedation-analgesie d’intervention suppose une bonne connaissance du controle de la douleur a l’urgence, de la sedation et de la combinaison optimale des deux approches. L’urgentiste d’aujourd’hui doit bien en maitriser les differentes facettes. Les auteurs presentent une revue de la litterature sur le sujet, incorporant les donnees les plus recentes et amenant a la discussion les principales controverses. Les positions presentees resument egalement les lignes directrices publiees ces dernieres annees par deux grandes organisations nord-americaines de medecine d’urgence. La pharmacologie des principaux agents opiaces, sedatifs et dissociatifs est revue, de meme que leur contexte specifique d’utilisation. Les approches permettant d’assurer la securite du patient sont aussi revisees. Le niveau de developpement actuel de ces pratiques au Quebec est egalement evoque.

The goal was to develop a classification of emergency departments (EDs) based on their organization of services for seniors discharged to the community.This was a secondary analysis of data collected in a survey of key informants (chief physicians and head nurses) in EDs in Quebec on the organization of services for community-dwelling seniors discharged to the community. Organizational characteristics were classified a priori in the following three categories: 1) availability of human resources, 2) care processes, and 3) links to community services. A multifactorial analysis (MFA) was used to analyze the variables by category and globally, thus investigating not only the relationships between variables within each category, but also the relationships between different categories. The authors then proceeded to classify EDs using Ward's method (hierarchical ascendant classification) applied to reduced data dimensions.The sample consisted of 103 EDs. Analyses were carried out on data from the 68 (66%) of these EDs that supplied complete data. These 68 EDs did not differ in terms of their size or geographical location from the 35 other departments that supplied incomplete or no data. We identified three groups of EDs: most specialized (with regard to internal staff and care processes) and less community-oriented (n = 12), moderately specialized and less community-oriented (n = 28), and least specialized and more community-oriented (n = 28).This classification of EDs with respect to their organization of services for community-dwelling seniors may be helpful to those planning services, to decision-makers, and to researchers. The three groups of EDs identified in this study represent three types of organizations with differing assets and limitations. The generalizability of these groups to other settings and the implications for patient outcomes should be investigated.

The specific objectives were: 1) to compare the characteristics and 6-month outcomes of community-dwelling seniors in Quebec, Canada, who visited three different emergency department (ED) types and 2) to explore whether the differences in outcomes by ED type were seen among subgroups of seniors.The three types of ED were most specialized, less community-oriented (n = 12); moderately specialized, less community-oriented (n = 28); and least specialized, more community-oriented (n = 28). Administrative databases were used to create a cohort of 223,120 seniors who visited these 68 EDs during a 14-month period. Using a multilevel approach, the following patient characteristics were compared across ED types: sociodemographic (age, sex, urban vs. rural residence, proximity to ED); medical diagnoses and comorbidity burden; and utilization of hospital and physician services during the 16 months before the index ED visit. Cox regression analysis was used to model the relationships between ED type and two 6-month outcomes, adjusting for patient characteristics: 1) serious outcomes (death, acute or long term-care admission) among all individuals who made an index visit and 2) outpatient ED visits (without hospital admission) among those discharged either from the ED or hospital. Interactions between ED type and patient age, sex, urban-rural residence, and comorbidity burden were explored.Compared to patients treated at the least specialized EDs, those at the most specialized EDs were more often urban-dwelling, resided outside the health service area of the ED, and had the highest disease burden and prior specialist utilization. Those treated at the moderately specialized EDs were intermediate between these two groups. During the 6 months after the ED visit, the rate of serious outcomes was higher and the rate of outpatient ED visits was lower for the most specialized compared to the least specialized EDs, even after adjustment for patient characteristics. The differences in these outcomes by ED type were attenuated among older patients and those with greater comorbidity.More vulnerable community-dwelling seniors tend to be treated in more specialized EDs, which have worse linkages to community services. Improved linkages between more specialized EDs and the community (physicians, home care, and other services) and increased access to community services may improve outcomes in this population. Seniors treated at more specialized EDs were more likely to experience serious outcomes, but were less likely to make a return outpatient ED visit.

Background: Many studies have shown the tendency for people without a regular care provider or primary physician to make greater use of emergency departments. We sought to determine the effects of three aspects of care provided by primary physicians (physician specialty, continuity of care and comprehensiveness of care) on their patients’ use of the emergency department. Methods: Using provincial administrative databases, we created a cohort of 367 315 adults aged 18 years and older. Participants were residents of urban areas of Quebec. Affiliation with a primary physician, the specialty of this physician (i.e., family physician v. specialist), continuity of care (as measured using the Usual Provider Continuity index) and comprehensiveness of care (i.e., number of complete annual examinations) were measured among participants ( n = 311 701) who had visited a physician three or more times during a two-year baseline period. We used multivariable negative binomial regression to investigate the relationships between measures of care and the number of visits to emergency departments during a 12-month follow-up period. Results: Among participants under 65 years of age, emergency department use was higher for those not affiliated than for those affiliated with a family physician (incidence rate ratio [IRR] 1.11, 95% confidence interval [CI] 1.05–1.16) or a specialist (IRR 1.10, 95% CI 1.04–1.17). Among patients aged 65 years and older, having a specialist primary physician, as opposed to a family physician, predicted increased use of the emergency department (IRR 1.13, 95% CI 1.09–1.17). Greater continuity of care with a family physician predicted less use of the emergency department only among participants who made 25 or more visits to a physician during the baseline period. Greater continuity of care with a specialist predicted less use of the emergency department overall, particularly among participants with intermediate numbers of multimorbidities and admissions to hospital. Greater comprehensiveness of care by family physicians predicted less use of the emergency department. Interpretation: Efforts to increase the proportion of adults affiliated with a family physician should target older adults, people who visit physicians more frequently and people with multiple comorbidities and admissions to hospital.