STUDY OBJECTIVE: To evaluate the effects of changing volume status on P-wave duration and dispersion in patients with decompensated heart failure. DESIGN: Prospective analysis. SETTING: Hospital cardiology unit. PATIENTS: Twenty-one patients with symptoms of decompensated heart failure who were treated with diuretics on admission. INTERVENTION: Twelve-lead electrocardiograms were obtained at baseline and after diuresis. Average, minimum, and maximum P-wave duration and P-wave dispersion (minimum minus maximum duration) were determined. MEASUREMENTS AND MAIN RESULTS: P-wave duration was measured manually in all 12 leads by using a 0.5-mm-scale precision ruler and magnifying lens. After 40+/-23 hours of diuresis, 3+/-1 L of fluid was removed. A significant correlation was found between average P-wave duration and amount of fluid removed (r = -0.59, p=0.015). Also, average and maximum P-wave duration were significantly decreased with diuresis (p=0.001 and 0.022, respectively). No other P-wave variables were significantly affected. CONCLUSIONS: Diuresis may attenuate electrophysiologic changes caused by fluid overload.
STUDY OBJECTIVE: To evaluate the effects of changing volume status on P-wave duration and dispersion in patients with decompensated heart failure. DESIGN: Prospective analysis. SETTING: Hospital cardiology unit. PATIENTS: Twenty-one patients with symptoms of decompensated heart failure who were treated with diuretics on admission. INTERVENTION: Twelve-lead electrocardiograms were obtained at baseline and after diuresis. Average, minimum, and maximum P-wave duration and P-wave dispersion (minimum minus maximum duration) were determined. MEASUREMENTS AND MAIN RESULTS: P-wave duration was measured manually in all 12 leads by using a 0.5-mm-scale precision ruler and magnifying lens. After 40+/-23 hours of diuresis, 3+/-1 L of fluid was removed. A significant correlation was found between average P-wave duration and amount of fluid removed (r = -0.59, p=0.015). Also, average and maximum P-wave duration were significantly decreased with diuresis (p=0.001 and 0.022, respectively). No other P-wave variables were significantly affected. CONCLUSIONS: Diuresis may attenuate electrophysiologic changes caused by fluid overload.
Authors: John E Madias; Jessica Song; C Michael White; James S Kalus; Jeffrey Kluger Journal: Ann Noninvasive Electrocardiol Date: 2005-07 Impact factor: 1.468
Authors: Abdenasser Drighil; John E Madias; Hanane El Mosalami; Nadia El Badaoui; Bahija Mouine; Wafae Fadili; Beenyouness Ramdani; Ahmed Bennis Journal: Indian Pacing Electrophysiol J Date: 2007-04-01