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https://www.readbyqxmd.com/read/28641984/bi-objective-approach-for-placing-ground-and-air-ambulance-base-and-helipad-locations-in-order-to-optimize-ems-response
#1
Milad Shahriari, Ali Bozorgi-Amiri, Shayan Tavakoli, Abolghasem Yousefi-Babadi
Shortening the travel time of patient transfer has clinical implications for many conditions such as cardiac arrest, trauma, stroke and STEMI. As resources are often limited precise calculations are needed. In this paper we consider the location problem for both ground and aerial emergency medical services. Given the uncertainty of when patients are in need of prompt medical attention we consider these demand points to be uncertain. We consider various ways in which ground and helicopter ambulances can work together to make the whole process go faster...
June 15, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28622073/neighborhood-poverty-and-9-1-1-ambulance-contacts
#2
Josh Seim, Joshua English, Karl Sporer
BACKGROUND: Neighborhood poverty is positively associated with frequency of 9-1-1 ambulance utilization, but it is unclear whether this association remains significant when accounting for variations in the severities and types of ambulance contacts. METHODS: We merged EMS ambulance contact records in a single California county (n = 88,027) with data from the American Community Survey at the census tract level (n = 300). Using tract as a proxy for neighborhood and negative binomial regression as an analytical tool, we predicted 16 outcomes: any ambulance contacts, ambulance contacts stratified by three intervention severities, and ambulance contacts varied by 12 primary impression categories...
June 16, 2017: Prehospital Emergency Care
https://www.readbyqxmd.com/read/28615192/access-to-hyperacute-stroke-services-across-canadian-provinces-a-geospatial-analysis
#3
Prasanna Venkatesan Eswaradass, Richard H Swartz, Jamey Rosen, Michael D Hill, M Patrice Lindsay
BACKGROUND: Canada's vast geography creates challenges for ensuring prompt transport to hospital of patients who have had a stroke. We sought to determine the proportion of people across various Canadian provinces for whom hyperacute stroke services are accessible within evidence-based time targets. METHODS: We calculated, for the 8 provinces with available data, drive-time polygons on a map of Canada that delineated the area around stroke centres and emergency medical services (EMS) base centres to which one can drive in 3...
June 14, 2017: CMAJ Open
https://www.readbyqxmd.com/read/28536170/door-to-needle-delays-in-minor-stroke-a-causal-inference-approach
#4
Sara K Rostanski, Zachary Shahn, Mitchell S V Elkind, Ava L Liberman, Randolph S Marshall, Joshua I Stillman, Olajide Williams, Joshua Z Willey
BACKGROUND AND PURPOSE: Thrombolysis rates among minor stroke (MS) patients are increasing because of increased recognition of disability in this group and guideline changes regarding treatment indications. We examined the association of delays in door-to-needle (DTN) time with stroke severity. METHODS: We performed a retrospective analysis of all stroke patients who received intravenous tissue-type plasminogen activator in our emergency department between July 1, 2011, and February 29, 2016...
May 23, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28499678/saving-lives-for-35-years-sentara-nightingale-looks-forward
#5
Dale Gauding
The Nightingale Regional air Ambulance program, operated by Norfolk, VA-based not-for-profit Sentara Healthcare, is marking its 35th year of operation in 2017, having surpassed 20,000 safe flights. Looking ahead, the program is adding IFR capabilities, designated landing zones to rendezvous with EMS partners and clinical training in a simulation lab, and collaborating with cardiac and neurology services to provide quicker interventions for STEMI and stroke patients at Sentara Norfolk General Hospital.
May 2017: Air Medical Journal
https://www.readbyqxmd.com/read/28485255/a-system-based-intervention-to-improve-access-to-hyperacute-stroke-care
#6
Richard H Swartz, Elizabeth Linkewich, Shelley Sharp, Jacqueline Willems, Chris Olynyk, Nicola Tahair, Megan L Cayley, Mark T Bayley
BACKGROUND: Hyperacute stroke is a time-sensitive emergency for which outcomes improve with faster treatment. When stroke systems are accessed via emergency medical services (EMS), patients are routed to hyperacute stroke centres and are treated faster. But over a third of patients with strokes do not come to the hospital by EMS, and may inadvertently arrive at centres that do not provide acute stroke services. We developed and studied the impact of protocols to quickly identify and move "walk-in" patients from non-hyperacute hospitals to regional stroke centres (RSCs)...
May 9, 2017: Canadian Journal of Neurological Sciences. le Journal Canadien des Sciences Neurologiques
https://www.readbyqxmd.com/read/28457621/validation-of-the-national-institutes-of-health-stroke-scale-8-to-detect-large-vessel-occlusion-in-ischemic-stroke
#7
Jelle Demeestere, Carlos Garcia-Esperon, Longting Lin, Andrew Bivard, Timothy Ang, Nicolas R Smoll, Ashley Garnett, Allan Loudfoot, Ferdi Miteff, Neil Spratt, Mark Parsons, Christopher Levi
BACKGROUND: Patients with acute ischemic stroke and large vessel occlusion (LVO) may benefit from prehospital identification and transfer to a center offering endovascular therapy. AIMS: We aimed to assess the accuracy of an existing 8-item stroke scale (National Institutes of Health Stroke Scale-8 [NIHSS-8]) for identification of patients with acute stroke with LVO. METHODS: We retrospectively calculated NIHSS-8 scores in a population of consecutive patients with presumed acute stroke assessed by emergency medical services (EMS)...
April 27, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28439183/race-ethnic-disparities-in-hospital-arrival-time-after-ischemic-stroke
#8
Mellanie V Springer, Daniel L Labovitz, Ethan C Hochheiser
OBJECTIVE: Conflicting reports exist about hospital arrival time after stroke onset in Hispanics compared with African Americans and Caucasians. Our current study investigates race-ethnic disparities in hospital arrival times after stroke onset. METHODS: We performed a retrospective analysis of hospital arrival times in Hispanic, African American, and Caucasian acute ischemic stroke patients (N=1790) presenting to a tertiary-care hospital in the Bronx, New York...
2017: Ethnicity & Disease
https://www.readbyqxmd.com/read/28434773/mstroke-mobile-stroke-improving-acute-stroke-care-with-smartphone-technology
#9
Benjamin Y Andrew, Colleen M Stack, Julian P Yang, Jodi A Dodds
OBJECTIVE: This study aimed to evaluate the effect of method and time of system activation on clinical metrics in cases utilizing the Stop Stroke (Pulsara, Inc.) mobile acute stroke care coordination application. METHODS: A retrospective cohort analysis of stroke codes at 12 medical centers using Stop Stroke from March 2013 to May 2016 was performed. Comparison of metrics (door-to-needle time [DTN] and door-to-CT time [DTC], and rate of DTN ≤ 60 minutes [goal DTN]) was performed between subgroups based on method (emergency medical service [EMS] versus emergency department [ED]) and time of activation...
April 20, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28339314/an-analysis-of-ems-and-ed-detection-of-stroke
#10
Ian Medoro, David C Cone
BACKGROUND AND PURPOSE: Studies have shown a reduction in time-to-CT and improved process measures when EMS personnel notify the ED of a "stroke alert" from the field. However, there are few data on the accuracy of these EMS stroke alerts. The goal of this study was to examine diagnostic test performance of EMS and ED stroke alerts and related process measures. METHODS: The EMS and ED records of all stroke alerts in a large tertiary ED from August 2013-January 2014 were examined and data abstracted by one trained investigator, with data accuracy confirmed by a second investigator for 15% of cases...
March 24, 2017: Prehospital Emergency Care
https://www.readbyqxmd.com/read/28121225/prospective-prehospital-evaluation-of-the-cincinnati-stroke-triage-assessment-tool
#11
Jason T McMullan, Brian Katz, Joseph Broderick, Pamela Schmit, Heidi Sucharew, Opeolu Adeoye
BACKGROUND AND PURPOSE: A simple, easily adoptable scale with good performance characteristics is needed for EMS providers to appropriately triage suspected stroke patients to comprehensive stroke centers (CSC). Many existing tools are complex, require substantial training, or have not been prospectively validated in the prehospital setting. We describe the feasibility and effectiveness of prehospital implementation of our previously retrospectively derived and validated Cincinnati Stroke Triage Assessment Tool (C-STAT) to identify subjects with severe stroke (NIHSS ≥15) among all prehospital patients with clinical suspicion of stroke/TIA...
January 25, 2017: Prehospital Emergency Care
https://www.readbyqxmd.com/read/28094089/use-of-emergency-medical-transport-and-impact-on-time-to-care-in-patients-with-ischaemic-stroke
#12
A Olascoaga Arrate, M M Freijo Guerrero, C Fernández Maiztegi, I Azkune Calle, R Silvariño Fernández, M Fernández Rodríguez, P Vazquez Naveira, A Anievas Elena, I Iturraspe González, Y Pérez Díez, R Ruiz Fernández
INTRODUCTION: According to numerous studies, using emergency medical services (EMS) to transport stroke patients to hospitals decreases diagnostic and treatment delays. OBJECTIVES: To determine the frequency of use of EMS by stroke patients in Bizkaia (Spain), analyse the factors associated with using EMS, and study the impact of EMS on time to care. METHODS: We gathered data from 545 patients hospitalised for acute ischaemic stroke and recruited consecutively...
January 13, 2017: Neurología: Publicación Oficial de la Sociedad Española de Neurología
https://www.readbyqxmd.com/read/27901250/perception-of-stroke-symptoms-and-utilization-of-emergency-medical-services
#13
Maximiliano A Hawkes, Mauricio F Farez, Ismael L Calandri, Sebastián F Ameriso
Methods: Review of hospital records and structured telephone interviews of 100 consecutive stroke patients. Forward stepwise logistic regression was used for the statistical analysis. Results: Seventy patients (75%) arrived at the hospital 4.5 hours after stroke symptoms onset. The use of EMS did not improve arrival times. Most patients who recognized their symptoms did not use EMS (p < 0.02). Nineteen patients (20%) were initially misdiagnosed. Eighteen of them were first assessed by non-neurologist physicians (p < 0...
November 2016: Arquivos de Neuro-psiquiatria
https://www.readbyqxmd.com/read/27894558/helicopter-scene-response-for-stroke-patients-a-5-year-experience
#14
Andrew Hawk, Catherine Marco, Matt Huang, Bonnie Chow
OBJECTIVE: The purpose of this study was to examine the usefulness of an emergency medical service (EMS)-requested air medical helicopter response directly to the scene for a patient with clinical evidence of an ischemic cerebrovascular accident (CVA) and transport to a regional comprehensive CVA center. METHODS: CareFlight, an air medical critical care transportation service, is based in Dayton, OH. The 3 CareFlight helicopters are geographically located and provided transport to all CVA scene patients in this study...
November 2016: Air Medical Journal
https://www.readbyqxmd.com/read/27866732/impact-of-a-direct-admission-stroke-pathway-on-delays-of-admission-care-and-rates-of-intravenous-thrombolysis
#15
REVIEW
C Mouthon-Reignier, I Bonnaud, M Gaudron, S Vannier-Bernard, J-F Bodin, J-P Cottier, B De Toffol, S Debiais
INTRODUCTION: This study examined the impact of a "direct potential thrombolysis" pathway with direct admission to a neurological stroke unit (SU) on delays of admission, stroke care and proportion of patients with ischemic stroke (IS) treated with intravenous (IV) rtPA. METHODS: This prospective study included all patients admitted in the intensive SU for potential thrombolysis over a 2-month period. Data collected included the time of symptom onset, mode of transport, National Institutes of Health Stroke Scale (NIHSS) score on arrival, delays of care, delays of imaging and modalities, diagnosis and therapeutic data...
December 2016: Revue Neurologique
https://www.readbyqxmd.com/read/27743926/improving-transfer-times-for-acute-ischemic-stroke-patients-to-a-comprehensive-stroke-center
#16
Thomas V Kodankandath, Paul Wright, Paul M Power, Marcella De Geronimo, Richard B Libman, Thomas Kwiatkowski, Jeffrey M Katz
BACKGROUND AND OBJECTIVE: The transfer of acute ischemic stroke (AIS) patients to a comprehensive stroke center (CSC) must be rapid. Delays pose an obstacle to time-sensitive stroke treatments and, therefore, increase the likelihood of exclusion from endovascular stroke therapy. This study aims to evaluate the impact of the Stroke Rescue Program, with its goal of minimizing interfacility transfer delays and increasing the number of transport times completed within 60 minutes. METHODS: The Stroke Rescue Program was initiated to facilitate the rapid transfer of AIS patients from regional primary stroke centers (PSCs) to the network's CSC...
January 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/27741991/diagnosis-of-acute-ischemic-stoke
#17
REVIEW
Lauren M Nentwich
Acute ischemic stroke is a challenging and time-sensitive diagnosis. Diagnosis begins with rapid detection of acute stroke symptoms by the patient, their family or caregivers, or bystanders. If acute stroke is suspected, EMS providers should be called for rapid assessment. EMS providers will utilize prehospital stroke tools to diagnose and determine potential stroke severity. Once at the hospital, the stroke team works rapidly to solidify the patient history, perform a focused neurologic examination and obtain necessary laboratory tests and brain imaging to accurately diagnose acute ischemic stroke and properly treat the patient...
November 2016: Emergency Medicine Clinics of North America
https://www.readbyqxmd.com/read/27642014/ultra-acute-diagnostics-for-stroke-large-scale-implementation-of-prehospital-biomarker-sampling
#18
O S Mattila, H Harve, S Pihlasviita, J Ritvonen, G Sibolt, M Pystynen, D Strbian, S Curtze, M Kuisma, T Tatlisumak, P J Lindsberg
OBJECTIVES: Blood-based biomarkers could enable early and cost-effective diagnostics for acute stroke patients in the prehospital setting to support early initiation of treatments. To facilitate development of ultra-acute biomarkers, we set out to implement large-scale prehospital blood sampling and determine feasibility and diagnostic timesavings of this approach. MATERIALS AND METHODS: Emergency medical services (EMS) personnel of the Helsinki metropolitan area were trained to collect prehospital blood samples from thrombolysis candidates using a cannula adapter technique...
July 2017: Acta Neurologica Scandinavica
https://www.readbyqxmd.com/read/27635857/developing-program-performance-measures-for-rural-emergency-medical-services
#19
John Gale, Andrew Coburn, Karen Pearson, Zachariah Croll, George Shaler
BACKGROUND: The development of measures to monitor and evaluate the performance and quality of emergency medical services (EMS) systems has been a focus of attention for many years. The Medicare Rural Hospital Flexibility Program (Flex Program), established by Congress in 1997, provides grants to states to implement initiatives to strengthen rural healthcare delivery systems, including better integration of EMS into those systems of care. OBJECTIVE: Building on national efforts to develop EMS performance measures, we sought to identify measures relevant to the rural communities and hospitals supported by the Flex Program...
March 2017: Prehospital Emergency Care
https://www.readbyqxmd.com/read/27547296/a-pilot-study-evaluating-the-use-of-abcd2-score-in-pre-hospital-assessment-of-patients-with-suspected-transient-ischaemic-attack-experience-and-lessons-learned
#20
Scott Munro, Sally Rodbard, Khalid Ali, Claire Horsfield, Wendy Knibb, Janet Holah, Ottilia Speirs, Tom Quinn
BACKGROUND: Suspected transient ischaemic attack (TIA) is a common presentation to emergency medical services (EMS) in the United Kingdom (UK). Several EMS systems have adopted the ABCD2 score to aid pre-hospital risk stratification and decision-making on patient disposition, such as direct referral to an Emergency Department or specialist TIA clinic. However, the ABCD2 score, developed for hospital use, has not been validated for use in the pre-hospital context of EMS care. METHODS: We conducted a pilot study to assess eligibility criteria, recruitment rates, protocol compliance, consent and follow-up procedures to inform the development of a definitive study to validate the ABCD2 tool in pre-hospital evaluation of patients with suspected TIA...
2016: Experimental & Translational Stroke Medicine
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