{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,10]],"date-time":"2025-11-10T21:02:43Z","timestamp":1762808563249,"version":"3.37.3"},"reference-count":23,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2017,12,27]],"date-time":"2017-12-27T00:00:00Z","timestamp":1514332800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Clin Physio Funct Imaging"],"published-print":{"date-parts":[[2018,9]]},"abstract":"<jats:title>Summary<\/jats:title><jats:sec><jats:title>Objective<\/jats:title><jats:p>To date, no systematic work has been intended to describe spatio\u2010temporal patterns of cardiac rhythms using only short series of <jats:styled-content style=\"fixed-case\">RR<\/jats:styled-content> intervals, to facilitate visual or computerized\u2010aided identification of <jats:styled-content style=\"fixed-case\">EKG<\/jats:styled-content> motifs for use in clinical practice. The aim of this study was to detect and classify eye\u2010catching geometric patterns of Poincar\u00e9 time\u2010delay plots from different types of cardiac rhythms and arrhythmias using short\u2010term <jats:styled-content style=\"fixed-case\">EKG<\/jats:styled-content> signals.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Approximately 150\u2013300 representative, consecutive beats were retrieved from 24\u2010h Holter registers of 100 patients with different heart rhythms. Two\u2010dimensional Poincar\u00e9 charts were created, and the resulting geometric patterns were transformed into representative familiar eye\u2010catching drawings to interpret different arrhythmias.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Poincar\u00e9 plot representation of <jats:styled-content style=\"fixed-case\">RR<\/jats:styled-content> interval data revealed a wide variety of visual patterns: (i) comet\u2010shaped for sinus rhythm; (ii) torpedo\u2010shaped for sinus bradycardia; (iii) cigarette\u2010shaped for sinus tachycardia; (iv) butterfly\u2010shaped for sinus tachycardia and isolated atrial premature complexes; (v) arrow\u2010shaped for isolated premature complexes and inappropriate sinus tachycardia; (vi) inverted fan\u2010shaped for sinus rhythm with frequent atrial premature complexes; (vii) tornado\u2010shaped for atrial flutter and atrial tachycardia; and (viii) fan\u2010shaped for atrial fibrillation.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Modified Poincar\u00e9 plots with smoothed lines connecting successive points could accurately classify different types of arrhythmias based on short <jats:styled-content style=\"fixed-case\">RR<\/jats:styled-content> interval sequence variability. Characteristic emergent patterns can be visually identified and eventually could be distinguished by an automatic classification system able to discern between arrhythmias. This work provides an alternative method to interpret time\u2010delay plots obtained from short\u2010term <jats:styled-content style=\"fixed-case\">EKG<\/jats:styled-content> signal recordings.<\/jats:p><\/jats:sec>","DOI":"10.1111\/cpf.12494","type":"journal-article","created":{"date-parts":[[2017,12,28]],"date-time":"2017-12-28T03:54:06Z","timestamp":1514433246000},"page":"856-863","source":"Crossref","is-referenced-by-count":9,"title":["Geometric patterns of time\u2010delay plots from different cardiac rhythms and arrhythmias using short\u2010term <scp>EKG<\/scp> signals"],"prefix":"10.1111","volume":"38","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2503-9887","authenticated-orcid":false,"given":"Ra\u00fal A.","family":"Borracci","sequence":"first","affiliation":[{"name":"Biostatistics School of Medicine Austral University Buenos Aires Argentina"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jos\u00e9 D.","family":"Montoya Pulvet","sequence":"additional","affiliation":[{"name":"Department of Electrophysiology and Cardiology Bernardino Rivadavia Hospital Buenos Aires Argentina"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Carlos A.","family":"Ingino","sequence":"additional","affiliation":[{"name":"Department of Cardiology ENERI\u2010Sagrada Familia Clinic Buenos Aires University Buenos Aires Argentina"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mario","family":"Fitz Maurice","sequence":"additional","affiliation":[{"name":"Department of Electrophysiology and Cardiology Bernardino Rivadavia Hospital Buenos Aires Argentina"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Alfredo","family":"Hirschon Prado","sequence":"additional","affiliation":[{"name":"Department of Electrophysiology and Cardiology Bernardino Rivadavia Hospital Buenos Aires 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