A specific combination of P wave duration and morphology accurately predicts the presence of left atrial low voltage area in patients with atrial fibrillation

2020 ◽  
Vol 63 ◽  
pp. 173-180 ◽  
Author(s):  
Tatsuhiko Ooie ◽  
Osamu Wakisaka ◽  
Takashi Hujita ◽  
Youta Urakabe ◽  
Masayuki Kaneko ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Left Atrial ◽  
Low Voltage ◽  
P Wave ◽  
Specific Combination ◽  
Wave Duration ◽  
P Wave Duration

The impact of left atrial pressure on filtered P-wave duration in patients with atrial fibrillation

2016 ◽  
Vol 31 (11) ◽  
pp. 1848-1854 ◽  
Author(s):  
Hideyuki Kishima ◽  
Takanao Mine ◽  
Satoshi Takahashi ◽  
Kenki Ashida ◽  
Masaharu Ishihara ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Left Atrial ◽  
P Wave ◽  
Atrial Pressure ◽  
Left Atrial Pressure ◽  
Wave Duration ◽  
P Wave Duration ◽  
The Impact

Association between prolonged P wave duration and left atrial scarring in patients with paroxysmal atrial fibrillation

2019 ◽  
Vol 30 (10) ◽  
pp. 1811-1818 ◽  
Author(s):  
Qiong Chen ◽  
Sanghamitra Mohanty ◽  
Chintan Trivedi ◽  
Carola Gianni ◽  
Domenico G. Della Rocca ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Paroxysmal Atrial Fibrillation ◽  
Left Atrial ◽  
P Wave ◽  
Wave Duration ◽  
P Wave Duration

scholarly journals P1201The association with p-wave duration and the prevalence of left atrial low-voltage areas

EP Europace ◽  
2018 ◽  
Vol 20 (suppl_1) ◽  
pp. i234-i234
Author(s):  
Y Matsuda ◽  
M Masuda ◽  
M Asai ◽  
O Iida ◽  
S Okamoto ◽  
...  
Keyword(s):  
Left Atrial ◽  
Low Voltage ◽  
P Wave ◽  
Wave Duration ◽  
P Wave Duration

Advanced interatrial block precedes atrial fibrillation and stroke. The prospective interatrial Block And Yearly EventS (BAYES) registry

2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
M Martinez-Selles ◽  
R Elosua ◽  
M Ibarrola ◽  
M De Andres ◽  
P Diez-Villanueva ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Heart Disease ◽  
Sinus Rhythm ◽  
Structural Heart Disease ◽  
P Wave ◽  
Wave Duration ◽  
P Wave Duration ◽  
Previous Diagnosis ◽  
Surface Ecg ◽  
Interatrial Block

Abstract Background Advanced interatrial block (IAB), prolonged and bimodal P waves in surface ECG inferior leads, is an unrecognized surrogate of atrial dysfunction and a trigger of atrial dysrhythmias, mainly atrial fibrillation (AF). Our aim was to prospectively assess whether advanced IAB in sinus rhythm precedes AF and stroke in elderly outpatients with structural heart disease, a group not previously studied. Methods Prospective observational registry that included outpatients aged ≥70 years with structural heart disease and no previous diagnosis of AF. Patients were divided into three groups according to P-wave characteristics. Results Among 556 individuals, 223 had normal P-wave (40.1%), 196 partial IAB (35.3%), and 137 advanced IAB (24.6%). After a median follow-up of 694 days; 93 patients (16.7%) developed AF, 30 stroke (5.4%), and 34 died (6.1%). Advanced IAB was independently associated with AF (hazard ratio [HR] 2.9, 95% confidence interval [CI] 1.7–5.1, p<0.001), stroke (HR 3.8, 95% CI 1.4–10.7, p=0.010), and AF/stroke (HR 2.6, 95% CI 1.5–4.4, p=0.001). P-wave duration (ms) was independently associated with AF (HR 1.05, 95% CI 1.03–1.07, p<0.001), AF/stroke (HR 1.04, 95% CI 1.02–1.06, p<0.001), and mortality (HR 1.04, 95% CI 1.00–1.08, p=0.021). Conclusions The presence of advanced IAB in sinus rhythm is a risk factor for AF and stroke in an elderly population with structural heart disease and no previous diagnosis of AF. P-wave duration was also associated with all-cause mortality. Figure. Age- and sex-adjusted linear and non-linear association between P-wave duration (msec) and atrial fibrillation (A), stroke (B), and atrial fibrillation or stroke (C) risk. Results of a generalized additive model with spline smoothing functions and 4 degrees of freedom. Figure 1. Kaplan-Meyer curves of survival free of atrial fibrillation (A), stroke (B) and atrial fibrillation or stroke (C) in patients with normal P-wave, partial interatrial block (IAB) and advanced IAB. Funding Acknowledgement Type of funding source: None

scholarly journals Evaluation of left atrial mechanics and p-wave dispersion as markers of left atrial cardiopathy in patients of embolic stroke of undetermined source (ESUS)

2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
S Masood ◽  
M.M Azharuddin ◽  
S.M.K Ashraf ◽  
S Wahab
Keyword(s):  
Left Atrial ◽  
Wave Dispersion ◽  
Embolic Stroke ◽  
P Wave ◽  
Electromechanical Delay ◽  
P Wave Dispersion ◽  
Atrial Electromechanical Delay ◽  
Wave Duration ◽  
P Wave Duration ◽  
Increased Risk

Abstract Introduction Around 25% of all ischaemic strokes have no known cause despite standard investigations. Most of these cases are suspected to have an embolic source for ischaemia, leading to the moniker of Embolic Stroke of Undetermined Source (ESUS). Recent studies suggest that abnormalities of the left atrium, in the form of atrial cardiopathy, can lead to increased risk of stroke even in the absence of atrial fibrillation (AF), which may be either as precursors to AF or as independent risk factors for the development of left atrial thrombus and subsequent stroke. Purpose The aim of this study was to measure LA electromechanical dissociation, LA volumes and P-wave dispersion as markers of atrial cardiopathy in patients with ESUS to determine whether atrial cardiopathy may be in the causal pathway of ESUS. Methods 28 patients presenting with ischaemic stroke and fulfilling the criteria for ESUS were enrolled into this cross-sectional, observational study. All patients had 24-hour Holter monitoring done to rule out the presence of AF. The control group consisted of 28 age- and gender-matched apparently healthy individuals. On ECG, P-wave Dispersion (PWD) was calculated by subtracting minimum P-wave duration from maximum P-wave duration. On echocardiography, time intervals from the beginning of P-wave to beginning of A' wave from the lateral mitral annulus in tissue doppler imaging was measured as the atrial electromechanical delay. LA volumes were recorded using the Modified Biplane Simpson's method. Statistical analysis was performed using student's t-test, chi-square test, and Pearson's test. Results Baseline demographic and laboratory characteristics were similar between the two groups. Increased PWD (34.14±9.89 ms vs. 27.32±8.95 ms; p=0.01), atrial electromechanical delay (73.32±16.31 ms vs. 63.63±13.59 ms; p=0.02) and LA volumes were observed in patients with ESUS as compared to controls. A significant correlation was also found between these parameters (p<0.01). Discussion According to the results of our study, PWD, atrial electromechanical delay and LA volumes may be novel predictors for ESUS. Atrial cardiopathy is a unique mechanism of thrombo-embolism in ESUS patients and our data establishes its association with ESUS. Further studies will be needed to shed more light on its role in the causality of stroke in the ESUS population. Measurement of electromechanical delay Funding Acknowledgement Type of funding source: None

scholarly journals B-AB16-03 P WAVE PARADOX: CAN THE P WAVE DURATION ON 12 LEAD ELECTROCARDIOGRAPHY INFORM ATRIAL FIBRILLATION RECURRENCE AFTER CATHETER ABLATION

Heart Rhythm ◽  
2021 ◽  
Vol 18 (8) ◽  
pp. S31-S32
Author(s):  
Michael Gardner ◽  
Shruti Bidani ◽  
Muzammil Khan ◽  
Jianhui Zhu ◽  
William W. Barrington ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Catheter Ablation ◽  
P Wave ◽  
Atrial Fibrillation Recurrence ◽  
Wave Duration ◽  
P Wave Duration

Signal-averaged P wave duration in patients with atrial fibrillation treated with radiofrequency catheter ablation

Heart Rhythm ◽  
2005 ◽  
Vol 2 (5) ◽  
pp. S182-S183
Author(s):  
Brian Nilsson ◽  
Ulrik Dixen ◽  
Xu Chen ◽  
Steen Pehrson ◽  
Jesper H. Svendsen
Keyword(s):  
Atrial Fibrillation ◽  
Catheter Ablation ◽  
Radiofrequency Catheter Ablation ◽  
P Wave ◽  
Wave Duration ◽  
P Wave Duration
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