{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,9]],"date-time":"2026-03-09T17:18:21Z","timestamp":1773076701314,"version":"3.50.1"},"reference-count":34,"publisher":"Wiley","issue":"9","license":[{"start":{"date-parts":[[2006,12,5]],"date-time":"2006-12-05T00:00:00Z","timestamp":1165276800000},"content-version":"vor","delay-in-days":1191,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Clinical Cardiology"],"published-print":{"date-parts":[[2003,9]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p><jats:italic>Background<\/jats:italic>: Paroxysmal atrial fibrillation (PAF) in hypertrophic cardiomyopathy (HCM) is associated with poor prognosis. Previous studies have shown good correlation between P\u2010wave dispersion (Pd) and occurrence of PAF. However, Pd in patients with HCM for predicting PAF has not been studied.<\/jats:p><jats:p><jats:italic>Hypothesis<\/jats:italic>: The aim of the study was to determine whether Pd could identify patients with HCM who are likely to suffer from PAF.<\/jats:p><jats:p><jats:italic>Methods<\/jats:italic>: Twenty\u2010two patients with HCM with a history of PAF (Group 1) and 26 patients with HCM without a history of PAF (Group 2) were studied. Maximum (Pmax) and minimum (Pmin) P\u2010wave durations, as well as P\u2010wave dispersion (Pd = Pmax\u2010Pmin) were calculated from 12\u2010lead surface electrocardiograms (ECG).<\/jats:p><jats:p><jats:italic>Results<\/jats:italic>: P\u2010wave dispersion was significantly different between the groups (Group 1:55 \u00b1 6 msvs. Group 2:37 \u00b1 8 ms; p&lt;0.001), while Pmax (Group 1: 134 \u00b1 11 ms vs. Group 2: 128 \u00b1 13 ms; p = 0.06) and Pmin (Group 1: 78 \u00b1 9 ms vs. Group 2: 81 \u00b1 7 ms; p = 0.07) was not significantly different. Patients with a history of PAF had higher left atrial diameter than the patients without PAF (Group 1:52 \u00b1 8 mm vs. Group 2:48 \u00b1 10 mm; p = 0.02). A cut\u2010off value of 46 ms for Pd had a sensitivity of 76% and a specificity of 82% in discriminating between patients with and without PAF.<\/jats:p><jats:p><jats:italic>Conclusion<\/jats:italic>: This study suggests that P\u2010wave dispersion could identify patients withHCM who are likely to develop PAF.<\/jats:p>","DOI":"10.1002\/clc.4960260910","type":"journal-article","created":{"date-parts":[[2007,6,27]],"date-time":"2007-06-27T18:48:12Z","timestamp":1182970092000},"page":"431-434","source":"Crossref","is-referenced-by-count":38,"title":["Detection of patients with hypertrophic cardiomyopathy at risk for paroxysmal atrial fibrillation during sinus rhythm by P\u2010wave 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