Please wait, while we are loading the content...
Please wait, while we are loading the content...
| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Pulido-Hidalgo, F.J. Barquero-Perez, O. Soguero-Ruiz, C. Sanchez-Munoz, J.J. Rojo-Alvarez, J.L. Garcia-Alberola, A. |
| Copyright Year | 2013 |
| Description | Author affiliation: Unit of Arrhythmias, Hosp. Univ. Virgen de la Arrixaca, Murcia, Spain (Sanchez-Munoz, J.J.; Garcia-Alberola, A.) || Dept. of Signal Theor. & Commun., Univ. Rey Juan Carlos, Madrid, Spain (Pulido-Hidalgo, F.J.; Barquero-Perez, O.; Soguero-Ruiz, C.; Rojo-Alvarez, J.L.) |
| Abstract | Most studies about ventricular fibrillation (VF) in humans have attempted to analyze the first minute of its evolution. However, longer duration studies or VF complete evolution (from onset to end) have been scarcely reported. Our aim was to study the complete evolution of VF signal, until asystolia, in a heart surgical VF model in humans using frequency and nonlinear parameters. We recorded ECG signals during VF from 30 patients underwent heart surgery under cardiopulmonary bypass (CPB). Two types of VF could be present, before surgery and after surgery. We characterized VF using dominant frequency $(f_{d})$ and regularity index (ri), and the nonlinear parameter sample entropy (SampEn) on the first and the last 5-sec segment before and after surgery. The goal was to analyse the temporal evolution of the VF, and also to compare the beginning and end of both VF before and after surgery. We used a nonparametric resampling statistical hypothesis test. We found an inverse temporal evolution before and after surgery, so that $f_{d}$ and SampEn decreased before (2.95 to 2.51 Hz; 0.36 to 0.32) and significantly increased after surgery (2.68 to 3.50 Hz; 0.33 to 0.37). The onsets of the VF were significantly different only on ri, whereas the end of the VF were significantly different on $f_{d}$ and SampEn The results are in agreement with studies with animal models, and might help to better understand the driven mechanisms of the VF and its temporal evolution. |
| Sponsorship | IEEE Eng. Med. Biol. Soc. |
| Starting Page | 1123 |
| Ending Page | 1126 |
| File Size | 886581 |
| Page Count | 4 |
| File Format | |
| ISBN | 9781479908844 |
| ISSN | 2325887X |
| e-ISBN | 9781479908868 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2013-09-22 |
| Publisher Place | Spain |
| Access Restriction | Subscribed |
| Rights Holder | Creative Commons Attribution License 2.5 (CCAL) |
| Subject Keyword | Surgery Heart Indexes Complexity theory Entropy Biomedical monitoring Electrocardiography |
| Content Type | Text |
| Resource Type | Article |
| Subject | Computer Science Cardiology and Cardiovascular Medicine |
National Digital Library of India (NDLI) is a virtual repository of learning resources which is not just a repository with search/browse facilities but provides a host of services for the learner community. It is sponsored and mentored by Ministry of Education, Government of India, through its National Mission on Education through Information and Communication Technology (NMEICT). Filtered and federated searching is employed to facilitate focused searching so that learners can find the right resource with least effort and in minimum time. NDLI provides user group-specific services such as Examination Preparatory for School and College students and job aspirants. Services for Researchers and general learners are also provided. NDLI is designed to hold content of any language and provides interface support for 10 most widely used Indian languages. It is built to provide support for all academic levels including researchers and life-long learners, all disciplines, all popular forms of access devices and differently-abled learners. It is designed to enable people to learn and prepare from best practices from all over the world and to facilitate researchers to perform inter-linked exploration from multiple sources. It is developed, operated and maintained from Indian Institute of Technology Kharagpur.
Learn more about this project from here.
NDLI is a conglomeration of freely available or institutionally contributed or donated or publisher managed contents. Almost all these contents are hosted and accessed from respective sources. The responsibility for authenticity, relevance, completeness, accuracy, reliability and suitability of these contents rests with the respective organization and NDLI has no responsibility or liability for these. Every effort is made to keep the NDLI portal up and running smoothly unless there are some unavoidable technical issues.
Ministry of Education, through its National Mission on Education through Information and Communication Technology (NMEICT), has sponsored and funded the National Digital Library of India (NDLI) project.
| 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 |
|
Loading...
|