Doppler Tissue Evaluation of Intra-atrial and Interatrial Electromechanical Delay and Comparison with P-wave Dispersion in Patients with Mitral Stenosis

2005 ◽  
Vol 18 (9) ◽  
pp. 945-948 ◽  
Author(s):  
Necla Özer ◽  
Bünyamin Yavuz ◽  
Ilknur Can ◽  
Enver Atalar ◽  
Serdar Aksöyek ◽  
...  
Keyword(s):  
Mitral Stenosis ◽  
Wave Dispersion ◽  
P Wave ◽  
Electromechanical Delay ◽  
P Wave Dispersion

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 Acute and short term effect of balloon mitral valvuloplasty on p wave dispersion and atrial electro-mechanical delay in subjects of mitral stenosis

2015 ◽  
Vol 67 ◽  
pp. S3
Author(s):  
Jamal Yusuf ◽  
Ajay Kumar Agarwal ◽  
Saibal Mukhopadhyay ◽  
Vimal Mehta ◽  
Vijay Trehan ◽  
...  
Keyword(s):  
Mitral Stenosis ◽  
Wave Dispersion ◽  
Term Effect ◽  
P Wave ◽  
Short Term ◽  
P Wave Dispersion ◽  
Mitral Valvuloplasty ◽  
Short Term Effect

scholarly journals P-Wave Duration and Dispersion in Patients with Mitral Stenosis

2021 ◽  
Author(s):  
Wenxia Fu ◽  
Jiawei Le ◽  
Xijin Wei ◽  
lixiu chen ◽  
Wenzhao Li ◽  
...  
Keyword(s):  
Mitral Stenosis ◽  
Test Group ◽  
Wave Dispersion ◽  
Left Ventricular ◽  
P Wave ◽  
Control Group ◽  
P Wave Dispersion ◽  
Wave Duration ◽  
P Wave Duration ◽  
Increased Risk

Abstract Background: Mitral stenosis (MS) is related to prolonged inter- and intra-atrial electromechanical delays and increased P-wave dispersion. The objective of the current study was to investigate the correlation between the P-wave duration, P-wave dispersion (PWD), mitral stenosis (MS) and to explore the cut-off values for predicting the MS in the patients.Methods: We enrolled 62 patients with MS and sinus rhythm as test group, and 62 healthy subjects matched in age- and sex- were selected as control group. We conducted the 12-lead electrocardiogram and echocardiography for all the subjects. The maximum and the minimum P-wave duration and PWD were calculated. Univariate and multivariate logistic regression analyses were performed to demonstrate the correlation between P-wave duration and PWD and MS. The receiver operating characteristic (ROC) curve was drawn to detect the threshold of P-wave duration and PWD for predicting the MS.Results: There were significant differences in the left atrial diameter (45.00±5.78 vs. 32.31±4.24 cm2), pulmonary artery pressure (46.68±17.29 vs. 32.64±2.86 mm Hg), left ventricular end-diastolic diameter (47.57±4.80 vs. 45.58±5.04 cm), ejection fraction (63.10±3.05 vs. 65.13±2.56%), aortic root inside diameter (29.60±3.50 vs. 31.58±3.58) and pulmonary trunk (24.17±2.78 vs. 22.23±1.77) values between the test group and the control group. Besides, the test subjects had significantly longer maximum P-wave duration (123.42±12.33 vs. 108.18±9.07) and larger P-wave dispersion (47.24±13.61 vs. 28.94±9.19). In the multivariate analysis, maximum P-wave duration (OR:1.221, 95% CI:1.126-1.324) and P-wave dispersion (OR:1.164, 95% CI:1.094-1.238) were correlated with the occurrence of MS. The optimal threshold for the maximum P-wave duration and PWD were 119.50ms, and 42.50ms, respectively, and the areas under the curve were 0.859 and 0.865, respectively. Conclusions: A longer P-wave duration and a higher PWD are correlated with the increased risk of MS progression.

scholarly journals P-wave dispersion in patients with rheumatic mitral stenosis

2007 ◽  
Vol 16 (01) ◽  
pp. 20-23 ◽  
Author(s):  
Gholam Reza Rezaian ◽  
Shahed Rezaian ◽  
Lida Liaghat ◽  
Najaf Zare
Keyword(s):  
Mitral Stenosis ◽  
Wave Dispersion ◽  
P Wave ◽  
P Wave Dispersion ◽  
Rheumatic Mitral Stenosis
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