NDLI: Cardiovascular risk stratification with heart rate topics

Content Provider	IEEE Xplore Digital Library
Author	Van Esbroeck, A. Syed, Z.
Copyright Year	2012
Description	Author affiliation: University of Michigan, Ann Arbor, USA (Van Esbroeck, A.; Syed, Z.)
Abstract	Recent work on heart rate motifs (HRM) has demonstrated that information in short heart rate patterns may be useful in identifying patients at elevated risk of cardiovascular death (CVD) following acute coronary syndrome. The information in HRM complements a variety of other clinical metrics including electrocardiographic (ECG) measures. While the HRM approach has value, it suffers from a focus on identifying and using information related to only a small number of discriminative patterns in heart rate time series, which loses valuable information among the full set of patterns in the data. We present a method based on topic models, an approach traditionally used in text analysis, to learn structure in the full set of short heart rate patterns in long-term ECG recordings. This model provides an interpretable representation of long-term ECG recordings and finds relationships amongst all short heart rate patterns across the entire patient population. When evaluated on data from 4,557 patients admitted with non-ST-elevation acute coronary syndrome, we show that heart rate topic models significantly improve risk stratification. This improvement is consistent even when considering information already available through the TIMI risk score and left ventricular ejection fraction, as well as several heart rate variability metrics.
Starting Page	609
Ending Page	612
File Size	102791
Page Count	4
File Format	PDF
ISBN	9781467320764
ISSN	2325887X
e-ISBN	9781467320771
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-09-09
Publisher Place	Poland
Access Restriction	Subscribed
Rights Holder	Creative Commons Attribution License 2.5 (CCAL)
Subject Keyword	Electrocardiography Heart rate variability Hazards Time series analysis Measurement Data models
Content Type	Text
Resource Type	Article
Subject	Computer Science Cardiology and Cardiovascular Medicine

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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