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Displaying results 1 - 8 of 8
  • Enhancing Biosurveillance Specificity Using PraedicoTM, A Next Generation Application

    Content Type: Abstract

    Many methods to detect outbreaks currently exist, although most are ineffective in the face of real data, resulting in high false positivity. More complicated methods have better precision, but can be difficult to interpret and justify. Praedico™ is… read more
    … is a next generation biosurveillance application built on top of a Hadoop High Performance Cluster that incorporates … is a next generation biosurveillance application built on top of a Hadoop High Performance Cluster that incorporates …
  • Dengue, Chikungunya & Zika Virus in VA Caribbean HCS, Nov. 2015-Aug. 2016

    Content Type: Abstract

    DENV, CHIKV and ZIKV are all transmitted by mosquitoes and have occurred in outbreaks in the Caribbean. Common symptoms (which can be severe and disabling) are similar among the 3 viruses and include fever, joint pain/swelling, headache, muscle pain… read more
    … DENV, CHIKV and ZIKV are all transmitted by mosquitoes and have occurred in outbreaks … of ZIKV infections have been reported in Puerto Rico. Due to the growing ZIKV outbreak, we performed ongoing … DENV, CHIKV and ZIKV are all transmitted by mosquitoes and have occurred in outbreaks …
  • Inpatient Data: A New Frontier in VA Biosurveillance and Public Health Monitoring from the Electronic Health Record

    Content Type: Abstract

    The Veterans Affairs (VA) ESSENCE obtains electronic health record data from 152 medical centers plus clinics in all 50 states, U.S. territories, and the Philippines. ESSENCE analyzes ICD-9 diagnosis codes and demographic data from outpatient and… read more
    … record data from 152 medical centers plus clinics in all 50 states, U.S. territories, and the Philippines. … which receives weekly feeds of inpatient data from all VA acute care hospitals starting at the beginning of the … which receives weekly feeds of inpatient data from all VA acute care hospitals starting October 1, 2009. Data …
  • Another Type of Cluster Monitoring: Detection of Groups of Anomalous Patient Residence Locations

    Content Type: Abstract

    The Veterans Health Administration (VHA) uses the Electronic Surveillance System for the Early Notification of Community-based Epidemics to detect disease outbreaks and other health-related events earlier than other forms of surveillance. Although… read more
    … were evaluated for flu symptoms. (The alert on July 26, 2009, was a part of this same outbreak.) Using this … utilized. Future work includes running this algorithm in all VA Medical Centers to prospectively identify disease … ehtj11115 ehtj11120 ehtj11024 ehtj11060 ehtj11110 26-50 ehtj11034 ehtj11198 ehtj11174 ehtj11048 ehtj11154 …
  • Adapting a syndromic biosurveillance system to monitor veterans’ health impact associated with the gulf coast oil spill

    Content Type: Abstract

    On 20 April 2010, an explosion on an offshore drilling rig in the Gulf of Mexico led to a prolonged uncontrolled release of crude oil. Both clean-up workers and coastal residents were potentially at high risk for respiratory and other… read more
    … detected by ESSENCE at 34 VA gulf coast facilities, 26 June–28 August, 2010 State Syndrome Dates Sustained? …
  • Hierarchical Filtering of ESSENCE for Routine, Distributed Disease Monitoring by the Veterans Health Administration

    Content Type: Abstract

    The VA has employed ESSENCE for health monitoring since 2006 [1]. Epidemiologists at the Office of Public Health (OPH) monitor the VA population at the national level. The system is also intended for facility-level monitoring to cover 152 medical… read more
    … outpatient clinics (CBOC), and other facilities serving all fifty states, the District of Columbia, and U.S. … outpatient clinics (CBOC), and other facilities serving all 50 states, the District of Columbia and U.S. … ehtj11115 ehtj11120 ehtj11024 ehtj11060 ehtj11110 26-50 ehtj11034 ehtj11198 ehtj11174 ehtj11048 ehtj11154 …
  • Diagnosis Coding Anomalies Resulting in Hemorrhagic Illness Alerts in Veterans Health Administration Outpatient Clinics

    Content Type: Abstract

    The Veterans Health Administration (VHA) operates over 880 outpatient clinics across the nation. The Johns Hopkins Applied Physics Laboratory’s Electronic Surveillance System for the Early Notification of Community-Based Epidemics (ESSENCE) utilizes… read more
    … Alerts in.pdf 7 views Submitted by elamb on Tue, 03/26/2019 - 16:22 … speci- fied (NOS), thrombocytopathy, and coagulation de- fect NOS). METHODS A total of 72055 occurrences of outpatient clinic di- agnosis codes falling into the HI category for a three- …
  • Surveillance for nationally notifiable infectious conditions using ICD-9-CM diagnosis codes in the VA ESSENCE biosurveillance system

    Content Type: Abstract

    The Electronic Surveillance System for the Early Notification of Community-based Epidemics (ESSENCE) obtains electronic data from 153 Veterans Affairs (VA) Medical Centers plus outpatient clinics in all 50 states, American Samoa, Guam,… read more
    … Affairs (VA) Medical Centers plus outpatient clinics in all 50 states, American Samoa, Guam, Philippines, Puerto … from 153 VA Medical Centers plus outpatient clinics in all 50 states, American Samoa, Guam, Philippines, Puerto … data from outpatient and emergency department visits at all VA facilities.1 For this review, visits with an ICD-9-CM …