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2.
BMC Health Serv Res ; 23(1): 1285, 2023 Nov 22.
Article in English | MEDLINE | ID: mdl-37993947

ABSTRACT

BACKGROUND: Internal medicine (IM) residency is a notoriously challenging time generally characterized by long work hours and adjustment to new roles and responsibilities. The COVID-19 pandemic has led to multiple emergent adjustments in training schedules to accommodate increasing needs in patient care. The physician training period, in itself, has been consistently shown to be associated with vulnerability with respect to mental well-being. The impact of the COVID-19 pandemic on the experience of IM trainees is not well established. OBJECTIVE: Characterize the impact of the COVID-19 pandemic on trainee clinical education, finances, and well-being. METHODS: We developed a survey composed of 25 multiple choice questions, 6 of which had an optional short-answer component. The survey was distributed by the American College of Physicians (ACP) to 23,289 IM residents and subspecialty fellows. We received 1,128 complete surveys and an additional 269 partially completed surveys. RESULTS: The majority of respondents reported a disruption in their clinical schedule (76%) and a decrease in both didactic conferences (71%) and protected time for education (56%). A majority of respondents (81%) reported an impact on their well-being with an increase in their level of burnout and 41% of respondents reported a decrease in level of direct supervision. Despite these changes, the majority of trainee respondents (78%) felt well prepared for clinical practice after graduation. CONCLUSIONS: These results outline the vulnerable position of internal medicine physicians in training. Preserving educational experiences, adequate supervision, and humane work hours are essential in protecting trainees from mental illness and burnout during global emergencies.


Subject(s)
Burnout, Professional , COVID-19 , Internship and Residency , Humans , United States/epidemiology , COVID-19/epidemiology , Pandemics , Surveys and Questionnaires , Burnout, Professional/epidemiology , Burnout, Professional/prevention & control , Internal Medicine/education
4.
Urol Case Rep ; 39: 101829, 2021 Nov.
Article in English | MEDLINE | ID: mdl-34522620

ABSTRACT

Eosinophilic cystitis (EC) is a rare disease of the bladder with no clear inciting etiology, pathogenesis, or standard treatment. We present the case of a 78-year-old woman with a three-year history of refractory EC with symptoms characterized by urinary frequency, gross hematuria, dysuria, and suprapubic pain. Despite treatment with a silver nitrate instillation, antibiotics, alpha-1 blockers, antihistamines, antimuscarinics, beta-3 agonists, and intravesical steroid injections, her symptoms persisted. She was then trialed on systemic therapies including prednisone, montelukast, and cyclosporine. Upon follow-up after initiation of therapy with low-dose cyclosporine she had an excellent response, both symptomatically and anatomically via cystoscopy.

5.
J Fungi (Basel) ; 7(5)2021 Apr 27.
Article in English | MEDLINE | ID: mdl-33925759

ABSTRACT

Coccidioides is an endemic fungus of the Southwest United States that causes the disease coccidioidomycosis. Immunocompromised persons are at increased risk for severe infection and dissemination. One such population is allogeneic bone marrow transplant (allo-HCT) recipients, but accounts of coccidioidal infection in these patients have rarely been documented. We present two cases of Coccidioides in allo-HCT recipients with good outcomes: one patient who developed pulmonary coccidioidomycosis in the late post-engraftment phase and another with known controlled disseminated infection at the time of transplant. A review of the literature identified 19 allo-HCT recipients with coccidioidomycosis. Due to the limited published literature, no guidelines have yet been established regarding optimal prophylaxis and treatment of Coccidioides infection in allo-HCT recipients. Candidates for transplantation should undergo a rigorous pre-transplant assessment to identify evidence of prior or active coccidioidomycosis. In our experience, patients who visit or live in Coccidioides-endemic areas should receive primary prophylaxis for at least the first 100 days post-transplant, and duration should be extended as long as the patient remains on immunosuppression. Those with prior infection should receive secondary prophylaxis while immunosuppressed. Patients with active infection should have treatment and stabilization of infection and continue anti-fungal treatment through immunosuppression.

6.
J Patient Exp ; 6(1): 11-20, 2019 Mar.
Article in English | MEDLINE | ID: mdl-31236446

ABSTRACT

Patient experience (PE) is recognized as a key component in the quality of health-care delivery. Public reporting of hospital, division, and physician-specific PE results has added to the momentum of adopting strategies to augment this metric of care. The Ottawa Hospital embarked on a journey to improve PE as a pillar of its quality improvement plan. This article demonstrates the efforts of a single surgery department from one large urban center to improve in-hospital PE in the rapidly changing environment of medicine and surgery. A multidisciplinary group within the department and a focus group of previous surgical inpatients were organized to address immediate challenges related to inpatient PE issues. We identified concrete strategies to optimize pain control, perceptions of patient respect and dignity, perceptions of surgeon availability, discharge medication understanding, and overall experience. Also, we identified a need in our department for timely patient feedback, improved communication styles in our staff and trainees, and an internal curriculum offering additional training for our staff and residents. We anticipate that the current results would be of significant interest to other departments wishing to optimize their PE profile as part of the ongoing quality improvement process at hospitals across North America.

7.
Stroke ; 48(3): 624-630, 2017 03.
Article in English | MEDLINE | ID: mdl-28213572

ABSTRACT

BACKGROUND AND PURPOSE: The Ontario Acute Stroke Medical Redirect Paramedic Protocol (ASMRPP) was revised to allow paramedics to bypass to designated stroke centers if total transport time would be <2 hours and total time from symptom onset <3.5 hours. We sought to evaluate the impact and safety of implementing the Revised ASMRPP. METHODS: We conducted a 12-month implementation study involving prehospital patients presenting with possible stroke symptoms. A total of 1317 basic and advanced life support paramedics, of 9 land services in 10 rural counties and 5 cities, used the Revised ASMRPP to take appropriate patients directly to 6 designated stroke centers. RESULTS: We enrolled 1277 patients with 98.8% paramedic compliance in form completion. Of these, 755 (61.2%) met the redirect criteria and had these characteristics: mean age 72.1 (range 16-101), male 51.1%, mean time scene to hospital 16.7 minutes (range 0-92). Paramedics demonstrated excellent interobserver agreement (κ, 0.94; 95% confidence interval, 0.91-0.96) and 97.9% accuracy in interpretation of the Revised ASMRPP. Prehospital adverse events occurred in 14.7% of patients, but few were life-threatening. Overall, 71.4% of 755 cases had a stroke code activated at the hospital and 23.2% received thrombolysis. For the 189 potential stroke patients picked up in 1 city, the ASMRPP classified thrombolysis administration with sensitivity 100% and specificity 37.3% and a final diagnosis of stroke, with sensitivity 86.1% and specificity 41.9%. CONCLUSIONS: In a large urban-rural area with 9 paramedic services, we demonstrated accurate, safe, and effective implementation of the Revised ASMRPP. These revisions will allow more patients with stroke to benefit from early treatment.


Subject(s)
Clinical Competence/standards , Emergency Medical Technicians/standards , Hospitalization/statistics & numerical data , Outcome and Process Assessment, Health Care/statistics & numerical data , Stroke/diagnosis , Stroke/therapy , Transportation of Patients/standards , Adolescent , Adult , Aged , Aged, 80 and over , Female , Humans , Male , Middle Aged , Ontario , Time Factors , Young Adult
8.
CJEM ; 18(2): 121-32, 2016 Mar.
Article in English | MEDLINE | ID: mdl-26988720

ABSTRACT

OBJECTIVES: We conducted a program of research to derive and test the reliability of a clinical prediction rule to identify high-risk older adults using paramedics' observations. METHODS: We developed the Paramedics assessing Elders at Risk of Independence Loss (PERIL) checklist of 43 yes or no questions, including the Identifying Seniors at Risk (ISAR) tool items. We trained 1,185 paramedics from three Ontario services to use this checklist, and assessed inter-observer reliability in a convenience sample. The primary outcome, return to the ED, hospitalization, or death within one month was assessed using provincial databases. We derived a prediction rule using multivariable logistic regression. RESULTS: We enrolled 1,065 subjects, of which 764 (71.7%) had complete data. Inter-observer reliability was good or excellent for 40/43 questions. We derived a four-item rule: 1) "Problems in the home contributing to adverse outcomes?" (OR 1.43); 2) "Called 911 in the last 30 days?" (OR 1.72); 3) male (OR 1.38) and 4) lacks social support (OR 1.4). The PERIL rule performed better than a proxy measure of clinical judgment (AUC 0.62 vs. 0.56, p=0.02) and adherence was better for PERIL than for ISAR. CONCLUSIONS: The four-item PERIL rule has good inter-observer reliability and adherence, and had advantages compared to a proxy measure of clinical judgment. The ISAR is an acceptable alternative, but adherence may be lower. If future research validates the PERIL rule, it could be used by emergency physicians and paramedic services to target preventative interventions for seniors identified as high-risk.


Subject(s)
Allied Health Personnel/statistics & numerical data , Decision Support Techniques , Emergency Service, Hospital/statistics & numerical data , Frail Elderly/statistics & numerical data , Geriatric Assessment/methods , Risk Assessment , Surveys and Questionnaires , Aged , Aged, 80 and over , Female , Humans , Male , Reproducibility of Results
9.
Infect Control Hosp Epidemiol ; 35(12): 1511-20, 2014 Dec.
Article in English | MEDLINE | ID: mdl-25419774

ABSTRACT

OBJECTIVE: To identify the behavioral determinants--both barriers and enablers--that may impact physician hand hygiene compliance. DESIGN: A qualitative study involving semistructured key informant interviews with staff physicians and residents. SETTING: An urban, 1,100-bed multisite tertiary care Canadian hospital. PARTICIPANTS: A total of 42 staff physicians and residents in internal medicine and surgery. METHODS: Semistructured interviews were conducted using an interview guide that was based on the theoretical domains framework (TDF), a behavior change framework comprised of 14 theoretical domains that explain health-related behavior change. Interview transcripts were analyzed using thematic content analysis involving a systematic 3-step approach: coding, generation of specific beliefs, and identification of relevant TDF domains. RESULTS: Similar determinants were reported by staff physicians and residents and between medicine and surgery. A total of 53 specific beliefs from 9 theoretical domains were identified as relevant to physician hand hygiene compliance. The 9 relevant domains were knowledge; skills; beliefs about capabilities; beliefs about consequences; goals; memory, attention, and decision processes; environmental context and resources; social professional role and identity; and social influences. CONCLUSIONS: We identified several key determinants that physicians believe influence whether and when they practice hand hygiene at work. These beliefs identify potential individual, team, and organization targets for behavior change interventions to improve physician hand hygiene compliance.


Subject(s)
Attitude of Health Personnel , Clinical Competence/standards , Guideline Adherence/standards , Hand Hygiene/standards , Physicians/psychology , Social Identification , Adult , Attention , Canada , Culture , Environment , Female , Health Knowledge, Attitudes, Practice , Humans , Infection Control/methods , Infection Control/organization & administration , Internship and Residency/standards , Male , Memory , Physicians/standards , Qualitative Research , Quality Improvement
10.
J Am Coll Cardiol ; 60(14): 1223-30, 2012 Oct 02.
Article in English | MEDLINE | ID: mdl-23017532

ABSTRACT

OBJECTIVES: This study sought to determine whether mortality complicating ST-segment elevation myocardial infarction (STEMI) was impacted by the design of transport systems. BACKGROUND: It is recommended that regions develop systems to facilitate rapid transfer of STEMI patients to centers equipped to perform primary percutaneous coronary intervention (PCI), yet the impact on mortality from the design of such systems remains unknown. METHODS: Within the framework of a citywide system where all STEMI patients are referred for primary PCI, we compared patients referred directly from the field to a PCI center to patients transported beforehand from the field to a non-PCI-capable hospital. The primary outcome was all-cause mortality at 180 days. RESULTS: A total of 1,389 consecutive patients with STEMI were assessed by the emergency medical services (EMS) and referred for primary PCI: 822 (59.2%) were referred directly from the field to a PCI center, and 567 (40.8%) were transported to a non-PCI-capable hospital first. Death at 180 days occurred in 5.0% of patients transferred directly from the field, and in 11.5% of patients transported from the field to a non-PCI-capable hospital (p < 0.0001. After adjusting for baseline characteristics in a multivariable logistic regression model, mortality remained lower among patients referred directly from the field to the PCI center (odds ratio: 0.52, 95% confidence interval: 0.31 to 0.88, p = 0.01). Similar results were obtained by using propensity score methods for adjustment. CONCLUSIONS: A STEMI system allowing EMS to transport patients directly to a primary PCI center was associated with a significant reduction in mortality. Our results support the concept of STEMI systems that include pre-hospital referral by EMS.


Subject(s)
Emergency Medical Services/methods , Myocardial Infarction/mortality , Myocardial Infarction/therapy , Patient Transfer/methods , Percutaneous Coronary Intervention , Aged , Coronary Angiography , Delivery of Health Care , Emergency Medical Services/statistics & numerical data , Female , Follow-Up Studies , Humans , Logistic Models , Male , Middle Aged , Myocardial Infarction/physiopathology , Ontario , Patient Transfer/statistics & numerical data , Prospective Studies , Time Factors
11.
Ann Emerg Med ; 55(3): 235-246.e4, 2010 Mar.
Article in English | MEDLINE | ID: mdl-19783323

ABSTRACT

STUDY OBJECTIVE: The first hour after the onset of out-of-hospital traumatic injury is referred to as the "golden hour," yet the relationship between time and outcome remains unclear. We evaluate the association between emergency medical services (EMS) intervals and mortality among trauma patients with field-based physiologic abnormality. METHODS: This was a secondary analysis of an out-of-hospital, prospective cohort registry of adult (aged > or =15 years) trauma patients transported by 146 EMS agencies to 51 Level I and II trauma hospitals in 10 sites across North America from December 1, 2005, through March 31, 2007. Inclusion criteria were systolic blood pressure less than or equal to 90 mm Hg, respiratory rate less than 10 or greater than 29 breaths/min, Glasgow Coma Scale score less than or equal to 12, or advanced airway intervention. The outcome was in-hospital mortality. We evaluated EMS intervals (activation, response, on-scene, transport, and total time) with logistic regression and 2-step instrumental variable models, adjusted for field-based confounders. RESULTS: There were 3,656 trauma patients available for analysis, of whom 806 (22.0%) died. In multivariable analyses, there was no significant association between time and mortality for any EMS interval: activation (odds ratio [OR] 1.00; 95% confidence interval [CI] 0.95 to 1.05), response (OR 1.00; 95% CI 9.97 to 1.04), on-scene (OR 1.00; 95% CI 0.99 to 1.01), transport (OR 1.00; 95% CI 0.98 to 1.01), or total EMS time (OR 1.00; 95% CI 0.99 to 1.01). Subgroup and instrumental variable analyses did not qualitatively change these findings. CONCLUSION: In this North American sample, there was no association between EMS intervals and mortality among injured patients with physiologic abnormality in the field.


Subject(s)
Trauma Centers/statistics & numerical data , Wounds and Injuries/mortality , Adult , Cohort Studies , Female , Humans , Logistic Models , Male , Middle Aged , Multivariate Analysis , North America , Prospective Studies , Time Factors , Transportation of Patients , Treatment Outcome , Wounds and Injuries/therapy , Young Adult
12.
CJEM ; 11(5): 473-80, 2009 Sep.
Article in English | MEDLINE | ID: mdl-19788792

ABSTRACT

OBJECTIVE: Timely reperfusion therapy for ST-elevation myocardial infarction (STEMI) is an important determinant of outcome, yet targets for time to treatment are frequently unmet in North America. Prehospital strategies can reduce time to reperfusion. We sought to determine the extent to which emergency medical services (EMS) use these strategies in Canada. METHODS: We carried out a cross-sectional survey in 2007 of ground EMS operators in British Columbia, Alberta, Ontario, Quebec and Nova Scotia. We focused on the use of 4 prehospital strategies: 1) 12-lead electrocardiogram (ECG), 2) routine expedited emergency department (ED) transfer of STEMI patients (from a referring ED to a percutaneous coronary intervention [PCI] centre), 3) prehospital bypass (ambulance bypass of local EDs to transport patients directly to PCI centres) and 4) prehospital fibrinolysis. RESULTS: Ninety-seven ambulance operators were surveyed, representing 15 681 paramedics serving 97% of the combined provincial populations. Of the operators surveyed, 68% (95% confidence interval [CI] 59%-77%) had ambulances equipped with 12-lead ECGs, ranging from 40% in Quebec to 100% in Alberta and Nova Scotia. Overall, 47% (95% CI 46%-48%) of paramedics were trained in ECG acquisition and 40% (95% CI 39%-41%) were trained in ECG interpretation. Only 18% (95% CI 10%-25%) of operators had prehospital bypass protocols; 45% (95% CI 35%-55%) had protocols for expedited ED transfer. Prehospital fibrinolysis was available only in Alberta. All EMS operators in British Columbia, Alberta and Nova Scotia used at least 1 of the 4 prehospital strategies, and one-third of operators in Ontario and Quebec used 0 of 4. In major urban centres, at least 1 of the 3 prehospital strategies 12-lead ECG acquisition, bypass or expedited transfer was used, but there was considerable variation within and across provinces. CONCLUSION: The implementation of widely recommended prehospital STEMI strategies varies substantially across the 5 provinces studied, and relatively simple existing technologies, such as prehospital ECGs, are underused in many regions. Substantial improvements in prehospital services and better integration with hospital-based care will be necessary in many regions of Canada if optimal times to reperfusion, and associated outcomes, are to be achieved.


Subject(s)
Emergency Medical Services/methods , Myocardial Infarction/therapy , Ambulances , Canada , Cross-Sectional Studies , Electrocardiography , Humans , Patient Transfer/methods , Surveys and Questionnaires , Thrombolytic Therapy , Time Factors , Transportation of Patients/methods , Treatment Outcome
13.
Prehosp Emerg Care ; 13(3): 311-5, 2009.
Article in English | MEDLINE | ID: mdl-19499466

ABSTRACT

OBJECTIVES: In the last several years, the National Association of EMS Physicians (NAEMSP) has called for better reporting on prehospital endotracheal intubation (ETI) and has provided guidelines and tools for better systematic review. We sought to evaluate the success of prehospital, non-drug-assisted ETI performed by Ottawa advanced care paramedics (ACPs) based on those guidelines. METHODS: A retrospective review was conducted on ETI performed by Ottawa ACPs over a 25-month period to determine the overall success rate of ETI. To qualify our results, descriptive analysis was conducted on demographic data. The relationships between success rate, patient demographic data, and preintubation conditions were examined. RESULTS: Overall success rate of ACP prehospital, non-drug-assisted ETI was 82.1% (95% confidence interval [CI]: 79.6, 84.3), representing a decreased value in comparison with the 90.7% of the previous study (p < 0.001). The study population comprised 1,029 intubated patients, the majority being adults (98.4%), with a mean age of 65.4 years (standard deviation [SD] 18.4). ETIs were successful for 64.6% (95% CI: 61.7, 67.5) of the first attempts; 79% of successful intubations were achieved within two attempts. ETI achievement was correlated with patients' age, with patients designated as vital signs absent (VSA), with those having a preintervention Glasgow Coma Scale (GCS) score of 3, and with those who were orally intubated (p < 0.05). Gender, weight, the nature (medical and trauma) of patient types, and locations of ambulance calls were found not to be related to the overall intubation success. CONCLUSIONS: This study reported the success rate of non-drug-assisted, prehospital ETI by ACPs in the Ottawa region. Our findings emphasize the importance of quality assessment for individual emergency medical services systems, to ensure optimum performance in ETI practice over time, and for intubation skill-retention training.


Subject(s)
Emergency Medical Technicians , Intubation, Intratracheal/standards , Adolescent , Adult , Aged , Aged, 80 and over , Child , Child, Preschool , Female , Humans , Infant , Infant, Newborn , Intubation, Intratracheal/statistics & numerical data , Male , Middle Aged , Ontario , Retrospective Studies , Young Adult
14.
N Engl J Med ; 358(3): 231-40, 2008 Jan 17.
Article in English | MEDLINE | ID: mdl-18199862

ABSTRACT

BACKGROUND: If primary percutaneous coronary intervention (PCI) is performed promptly, the procedure is superior to fibrinolysis in restoring flow to the infarct-related artery in patients with ST-segment elevation myocardial infarction. The benchmark for a timely PCI intervention has become a door-to-balloon time of less than 90 minutes. Whether regional strategies can be developed to achieve this goal is uncertain. METHODS: We developed an integrated-metropolitan-area approach in which all patients with ST-segment elevation myocardial infarction were referred to a specialized center for primary PCI. We sought to determine whether there was a difference in door-to-balloon times between patients who were referred directly from the field by paramedics trained in the interpretation of electrocardiograms and patients who were referred by emergency department physicians. RESULTS: Between May 1, 2005, and April 30, 2006, a total of 344 consecutive patients with ST-segment elevation myocardial infarction were referred for primary PCI: 135 directly from the field and 209 from emergency departments. Primary PCI was performed in 93.6% of patients. The median door-to-balloon time was shorter in patients referred from the field (69 minutes; interquartile range, 43 to 87) than in patients needing interhospital transfer (123 minutes; interquartile range, 101 to 153; P<0.001). Door-to-balloon times of less than 90 minutes were achieved in 79.7% of patients who were transferred from the field and in 11.9% of those transferred from emergency departments (P<0.001). CONCLUSIONS: Guideline door-to-balloon-times were more often achieved when trained paramedics independently triaged and transported patients directly to a designated primary PCI center than when patients were referred from emergency departments.


Subject(s)
Angioplasty, Balloon, Coronary/standards , Clinical Protocols/standards , Emergency Medical Services/standards , Myocardial Infarction/therapy , Referral and Consultation , Aged , Cardiac Catheterization , Coronary Angiography , Electrocardiography , Emergency Medical Technicians , Female , Hospital Mortality , Humans , Male , Middle Aged , Myocardial Infarction/mortality , Patient Transfer/statistics & numerical data , Practice Guidelines as Topic/standards , Referral and Consultation/standards , Time Factors , Treatment Outcome , Triage , Urban Health Services/standards
15.
Acad Emerg Med ; 14(10): 877-83, 2007 Oct.
Article in English | MEDLINE | ID: mdl-17761545

ABSTRACT

OBJECTIVES: To determine the frequency of agonal breathing during cardiac arrest (CA), its impact on the ability of 9-1-1 dispatchers to identify CA, and the impact of dispatch-assisted cardiopulmonary resuscitation (CPR) instructions on bystander CPR rates. METHODS: A before-after observational study enrolling out-of-hospital adult CA patients where resuscitation was attempted in a single city with basic life support with defibrillation/advanced life support tiered emergency medical services. Victim, caller, and system characteristics were measured during two successive nine-month periods before (control group) and after (intervention group) the introduction of dispatch-assisted CPR instructions. RESULTS: There were 529 CAs between July 1, 2003, and December 31, 2004. Victim characteristics were similar in the control (n = 295) and intervention (n = 234) period; mean age was 68.3 years; 66.7% were male; 50.1% of CAs were witnessed; call-to-vehicle stop was 6 minutes, 37 seconds; ventricular fibrillation/ventricular tachycardia occurred in 29.9%; and the survival rate was 4.0%. Dispatchers identified 56.3% (95% confidence interval [CI] = 48.9% to 63.0%) of CA cases; agonal breathing was present in 37.0% (95% CI = 30.1% to 43.9%) of all CA cases and accounted for 50.0% (95% CI = 39.1% to 60.9%) of missed diagnoses. Callers provided ventilations in 17.2% and chest compressions in 8.3% of cases as a result of the intervention. Long time intervals were observed between call to diagnosis (2 minutes, 38 seconds) and during ventilation instructions (2 minutes, 5 seconds). Bystander CPR rates increased from 16.7% in the control phase to 26.4% in the intervention phase (absolute rate, 9.7%; 95% CI = 8.5% to 11.3%; p = 0.006). CONCLUSIONS: This trial demonstrates an increase in bystander CPR rate after the introduction of dispatch-assisted CPR. Agonal breathing occurred frequently and had a negative impact on the recognition of CA. There were long time intervals between call initiation and diagnosis of CA and during mouth-to-mouth ventilation instructions.


Subject(s)
Cardiopulmonary Resuscitation/education , Caregivers/education , Emergency Medical Service Communication Systems , Heart Arrest/therapy , Adult , Aged , Aged, 80 and over , Cardiopulmonary Resuscitation/statistics & numerical data , Caregivers/statistics & numerical data , Emergency Medical Service Communication Systems/statistics & numerical data , Female , Heart Arrest/diagnosis , Heart Arrest/epidemiology , Humans , Male , Middle Aged , Ontario/epidemiology , Outcome and Process Assessment, Health Care , Respiratory Sounds/diagnosis , Telemedicine/methods , Telemedicine/statistics & numerical data , Treatment Outcome
16.
Am J Cardiol ; 98(10): 1329-33, 2006 Nov 15.
Article in English | MEDLINE | ID: mdl-17134623

ABSTRACT

Speed of reperfusion is critical in ST-segment elevation myocardial infarction (STEMI). We assessed the safety and feasibility of an integrated metropolitan approach in which advanced-care paramedics interpret the prehospital electrocardiogram and independently refer patients with STEMI to a designated center for primary percutaneous coronary intervention (PCI). We developed and implemented a protocol in which paramedics trained in electrocardiographic interpretation bypassed the nearest emergency room and referred patients with suspected STEMI directly to a designated primary PCI center (paramedic-referred primary PCI). Outcomes of these patients were compared with those of a retrospective cohort of 225 consecutive patients with STEMI transported by ambulance to the nearest hospital emergency department. We treated 108 consecutive patients with STEMI using ambulance services according to the paramedic-referred primary PCI protocol. Primary PCI was performed in 93.5% versus 8.9% in the control group, and the median door-to-balloon time was 63 versus 125 minutes in the control group (p <0.0001 for 2 comparisons). Thrombolytic therapy was prescribed to 80.4% of the control group, with a median door-to-needle time of 41 minutes. In-hospital mortality was 1.9% in the paramedic-referred primary PCI group versus 8.9% in the control group (p = 0.017) and remained significantly lower after statistical adjustment for baseline risk. In conclusion, paramedic-referred primary PCI is a safe and feasible strategy for treating STEMI that is associated with rapid and effective reperfusion and very low in-hospital mortality.


Subject(s)
Cardiac Care Facilities , Hospitals , Myocardial Infarction/mortality , Myocardial Infarction/therapy , Patient Transfer , Allied Health Personnel , Angioplasty, Balloon, Coronary , Electrocardiography , Emergency Medical Services , Feasibility Studies , Female , Hospital Mortality , Humans , Male , Proportional Hazards Models , Referral and Consultation , Statistics, Nonparametric , Treatment Outcome
17.
CJEM ; 8(6): 401-7, 2006 Nov.
Article in English | MEDLINE | ID: mdl-17209489

ABSTRACT

OBJECTIVES: Most studies of pre-hospital management of ST-elevation myocardial infarction (STEMI) have involved physicians accompanying the ambulance crew, or electrocardiogram (ECG) transmission to a physician at the base hospital. We sought to determine if Advanced Care Paramedics (ACPs) could accurately identify STEMI on the pre-hospital ECG and contribute to strategies that shorten time to reperfusion. METHODS: A STEMI tool was developed to: 1) measure the accuracy of the ACPs at diagnosing STEMI; and 2) determine the potential time saved if ACPs were to independently administer thrombolytic therapy. Using registry data, we subsequently estimated the time saved by initiating thrombolytic therapy in the field compared with in-hospital administration by a physician. RESULTS: Between August 2003 and July 2004, a correct diagnosis of STEMI on the pre-hospital ECG was confirmed in 63 patients. The performance of the ACPs in identifying STEMI on the ECG resulted in a sensitivity of 95% (95% confidence interval [CI] 86%-99%), a specificity of 96% (95% CI 94%-98%), a positive predictive value (PPV) of 82% (95% CI 71%-90%), and a negative predictive value (NPV) of 99% (95% CI 97%-100%). ACP performance for appropriately using thrombolytic therapy resulted in a sensitivity of 92% (95% CI 78%-98%), a specificity of 97% (95% CI 94%-98%), a PPV of 73% (95% CI 59%-85%) and an NPV of 99% (95% CI 97%-100%). We estimated that the median time saved by ACP administration of thrombolytic therapy would have been 44 minutes. CONCLUSIONS: ACPs can be trained to accurately interpret the pre-hospital ECG for the diagnosis of STEMI. These results are important for the design of regional integrated programs aimed at reducing delays to reperfusion.


Subject(s)
Electrocardiography , Myocardial Ischemia/pathology , Ambulances , Canada , Electrocardiography/statistics & numerical data , Emergency Medical Technicians/education , Female , Humans , Male , Myocardial Ischemia/drug therapy , Predictive Value of Tests , Surveys and Questionnaires , Thrombolytic Therapy , Time Factors , Workforce
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