scholarly journals Relationships between P wave dispersion, atrial electromechanical delay, left atrial remodeling, and NT-proBNP levels, in patients with hypertrophic cardiomyopathy

2015 ◽  
Vol 22 (1) ◽  
pp. 94-100 ◽  
Author(s):  
Kamil Tuluce ◽  
Filiz Ozerkan ◽  
Selcen Yakar Tuluce ◽  
Oguz Yavuzgil ◽  
Cemil Gurgun ◽  
...  
Keyword(s):  
Hypertrophic Cardiomyopathy ◽  
Left Atrial ◽  
Wave Dispersion ◽  
P Wave ◽  
Atrial Remodeling ◽  
Electromechanical Delay ◽  
P Wave Dispersion ◽  
Left Atrial Remodeling ◽  
Atrial Electromechanical Delay

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 Left Atrial Mechanical Functions, Atrial Electromechanical Delay and P Wave Dispersion in Patients with Mild to Moderate Psoriasis

2013 ◽  
Vol 62 (18) ◽  
pp. C160
Author(s):  
Fatma Özlem Arıcan Özlük ◽  
Mustafa Yılmaz ◽  
Serkan Yazıcı ◽  
Tezcan Peker ◽  
Dursun Topal ◽  
...  
Keyword(s):  
Left Atrial ◽  
Wave Dispersion ◽  
P Wave ◽  
Electromechanical Delay ◽  
P Wave Dispersion ◽  
Atrial Electromechanical Delay

Assessment of atrial electromechanical delay in children with acute rheumatic fever

2012 ◽  
Vol 24 (1) ◽  
pp. 27-32
Author(s):  
Murat Çiftel ◽  
Özlem Turan ◽  
Ayşe Şimşek ◽  
Fırat Kardelen ◽  
Gayaz Akçurin ◽  
...  
Keyword(s):  
Rheumatic Fever ◽  
Left Atrial ◽  
Acute Rheumatic Fever ◽  
Wave Dispersion ◽  
P Wave ◽  
Electromechanical Delay ◽  
P Wave Dispersion ◽  
Left Atrial Enlargement ◽  
Atrial Electromechanical Delay ◽  
Atrial Enlargement

AbstractPurposeThere may be an increase in the risk of atrial arrhythmia due to left atrial enlargement and the influence on conduction system in acute rheumatic fever. The aim of this study is to investigate atrial electromechanical delay and P-wave dispersion in patients with acute rheumatic fever.PatientsA total of 48 patients diagnosed with acute rheumatic fever and 40 volunteers of similar age, sex, and body mass index were included in the study. The study groups were compared for M-mode echocardiographic parameters, interatrial electromechanical delay, intra-atrial electromechanical delay, and P-wave dispersion.ResultsMaximum P-wave duration, P-wave dispersion, and interatrial electromechanical delay were significantly higher in patients with acute rheumatic fever compared with the control group (p < 0.001). However, there was no difference in terms of intra-atrial electromechanical delay (p > 0.05). For patients with acute rheumatic fever, a positive correlation was identified between the left atrium diameter and the P-wave dispersion and interatrial electromechanical delay (r = 0.524 and p < 0.001, and r = 0.351 and p = 0.014, respectively). Furthermore, an important correlation was also identified between the P-wave dispersion and the interatrial electromechanical delay (r = 0.494 and p < 0.001).ConclusionThis study shows the prolongation of P-wave dispersion and interatrial electromechanical delay in acute rheumatic fever. Left atrial enlargement can be one of the underlying reasons for the increase in P-wave dispersion and interatrial electromechanical delay.

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