{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,31]],"date-time":"2026-01-31T11:01:34Z","timestamp":1769857294753,"version":"3.49.0"},"reference-count":22,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2012,11,22]],"date-time":"2012-11-22T00:00:00Z","timestamp":1353542400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Noninvasive Electrocardiol"],"published-print":{"date-parts":[[2013,3]]},"abstract":"<jats:sec><jats:title>Background<\/jats:title><jats:p>In patients with systolic heart failure (HF), coexisting sleep apnea may promote arrhythmia. Ambulatory Holter electrocardiogram (ECG) monitoring (AECG) is a method of arrhythmia and apnea evaluation. We hypothesized that 24\u2010hour AECG in patients with HF who have a high risk of serious arrhythmia may be less accurate than AECG extended to 48 hours and that, moreover, arrhythmia may be related to apnea.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Eighty\u2010four recordings of 48\u2010hour AECG in 84 patients with ischemic HF (mean ejection fraction 34 \u00b1 7%) were analyzed. Day 1, Day 2 were checked for ventricular tachycardia (VT) and supraventricular tachycardia (SVT). Estimated apnea\u2010hypopnea index (est.AHI) was calculated using Holter, monitoring where est.AHI &gt;15 indicates apnea.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>In 48\u2010hour AECG, VT occurred in 34 patients (40.5%) whereas SVT in 17 patients (20.2%), and patients with est.AHI\u00a0&gt;\u00a015 had higher VT occurrence. In two\u2010sample one\u2010sided test for proportions, 24\u2010hour AECG from Day 1 showed a significantly lower percentage of patients with detected VT than 48\u2010hour AECG\u2014it was 23.8% (20 patients), meaning a significant underestimation with P = 0.0089. We assessed VT underestimation in the subgroups with regard to est.AHI, and found that it was present in Day 1 monitoring in the subgroups with est.AHI\u00a0&gt;\u00a015. It was absent in the subgroups with est.AHI\u00a0\u2264\u00a015 and also in Day 2 monitoring.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>In patients with systolic HF, 24\u2010hour AECG may have insufficient sensitivity regarding serious arrhythmia occurrence. If significant apnea was detected in the first day, extending the monitoring may be recommended.<\/jats:p><\/jats:sec>","DOI":"10.1111\/anec.12012","type":"journal-article","created":{"date-parts":[[2012,11,23]],"date-time":"2012-11-23T02:40:47Z","timestamp":1353638447000},"page":"163-169","source":"Crossref","is-referenced-by-count":2,"title":["Usefulness of Extended Holter ECG Monitoring for Serious Arrhythmia Detection in Patients with Heart Failure and Sleep Apnea"],"prefix":"10.1111","volume":"18","author":[{"given":"Barbara","family":"Uzna\u0144ska\u2010Loch","sequence":"first","affiliation":[{"name":"Chair and Clinic of Cardiology Medical University of \u0141\u00f3d\u017a, \u0141\u00f3d\u017a  Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ewa","family":"Trzos","sequence":"additional","affiliation":[{"name":"Chair and Clinic of Cardiology Medical University of \u0141\u00f3d\u017a, \u0141\u00f3d\u017a  Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Karina","family":"Wierzbowska\u2010Drabik","sequence":"additional","affiliation":[{"name":"Chair and Clinic of Cardiology Medical University of \u0141\u00f3d\u017a, \u0141\u00f3d\u017a  Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Janusz","family":"\u015amigielski","sequence":"additional","affiliation":[{"name":"Department of Medical Informatics &amp; Statistics Medical University of \u0141\u00f3d\u017a, Aleja Tadeusza Ko\u015bciuszki 4\u00a0\u00a0\u0141\u00f3d\u017a  Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tomasz","family":"Rechci\u0144ski","sequence":"additional","affiliation":[{"name":"Chair and Clinic of Cardiology Medical University of \u0141\u00f3d\u017a, \u0141\u00f3d\u017a  Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Urszula","family":"Cie\u015blik\u2010Guerra","sequence":"additional","affiliation":[{"name":"Chair and Clinic of Cardiology Medical University of \u0141\u00f3d\u017a, \u0141\u00f3d\u017a  Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jaros\u0142aw D.","family":"Kasprzak","sequence":"additional","affiliation":[{"name":"Chair and Clinic of Cardiology Medical University of \u0141\u00f3d\u017a, \u0141\u00f3d\u017a  Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ma\u0142gorzata","family":"Kurpesa","sequence":"additional","affiliation":[{"name":"Chair and Clinic of Cardiology Medical University of \u0141\u00f3d\u017a, \u0141\u00f3d\u017a  Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2012,11,22]]},"reference":[{"key":"e_1_2_6_2_1","doi-asserted-by":"publisher","DOI":"10.1161\/01.CIR.0000039105.49749.6F"},{"key":"e_1_2_6_3_1","first-page":"109","article-title":"Sleep disorders and daily sleepiness problems among patients with arterial hypertension","volume":"12","author":"B\u0142aszczyk R","year":"2010","journal-title":"Pol Przegl Kardiol"},{"key":"e_1_2_6_4_1","doi-asserted-by":"publisher","DOI":"10.1164\/rccm.2109080"},{"key":"e_1_2_6_5_1","doi-asserted-by":"publisher","DOI":"10.1378\/chest.109.3.659"},{"key":"e_1_2_6_6_1","first-page":"1285","article-title":"Sleep\u2010disordered breathing in heart failure","volume":"69","author":"Uzna\u0144ska\u2010Loch B","year":"2011","journal-title":"Kardiol Pol"},{"key":"e_1_2_6_7_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jacc.2006.12.046"},{"key":"e_1_2_6_8_1","doi-asserted-by":"publisher","DOI":"10.1109\/TBME.2003.812203"},{"key":"e_1_2_6_9_1","doi-asserted-by":"crossref","first-page":"223","DOI":"10.5664\/jcsm.27184","article-title":"Electrocardiogram recording as a screening tool for sleep disordered breathing","volume":"15","author":"Heneghan C","year":"2008","journal-title":"J Clin Sleep Med"},{"key":"e_1_2_6_10_1","first-page":"1321","article-title":"Usefulness of ambulatory ECG in diagnosis of sleep\u2010related breathing disorders","volume":"65","author":"O\u017cegowski S","year":"2007","journal-title":"Kardiol Pol"},{"key":"e_1_2_6_11_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1542-474X.2010.00367.x"},{"key":"e_1_2_6_12_1","doi-asserted-by":"publisher","DOI":"10.1161\/01.CIR.100.8.886"},{"key":"e_1_2_6_13_1","doi-asserted-by":"crossref","first-page":"1073","DOI":"10.1001\/archinte.1990.00390170103022","article-title":"The duration of Holter monitoring in patients with syncope. 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