Relationship between P-Wave Duration and Atrial Electromechanical Delay Assessed by Tissue Doppler Echocardiography
| Autor: | Grzegorz Raczak, Ewa Lewicka-Nowak, Paweł Zagożdżon, Andrzej Kutarski, Alicja Dąbrowska-Kugacka, Piotr Ruciński |
|---|---|
| Rok vydání: | 2010 |
| Předmět: |
Duplex ultrasonography
medicine.diagnostic_test Heart disease business.industry General Medicine medicine.disease Ostium Tissue Doppler echocardiography Anesthesia cardiovascular system medicine P wave duration Sinus rhythm cardiovascular diseases Cardiology and Cardiovascular Medicine business Electrocardiography Coronary sinus |
| Zdroj: | Pacing and Clinical Electrophysiology. 34:23-31 |
| ISSN: | 0147-8389 |
| DOI: | 10.1111/j.1540-8159.2010.02939.x |
| Popis: | Background: The aim of the study was to assess the relationship between P-wave duration on the surface electrocardiogram (ECG) and echocardiographic parameters of atrial electromechanical delay (EMD), as well as contraction synchrony during different atrial pacing modalities. Methods: In 57 patients with sinus node disease and prolonged sinus P-wave duration treated with multisite atrial pacing (MSAp), the EMD was measured by tissue Doppler in several left and right atrial sites during sinus rhythm, MSAp, and single-site pacing at right atrial appendage (RAAp), Bachmann's bundle (BBp) region, and coronary sinus (CSp) ostium. Regional atrial synchrony was calculated on the basis of EMD. Results: P-wave duration was 141 ± 16, 120 ± 17, 138 ± 17, 144 ± 16, and 160 ± 19 ms during sinus rhythm, MSAp, BBp, CSp, and RAAp, respectively (P 0.51; P 0.42; P < 0.05), while during sinus rhythm and CSp, only weak correlation between echo and ECG was found. Neither of the tissue Doppler parameters correlated with P-wave duration during MSAp. Interatrial dyssynchrony correlated with P-wave duration during sinus rhythm and RAAp and intraleft atrial dyssynchrony only during sinus rhythm. Conclusions: P-wave duration of the surface ECG is highly correlated with the atrial EMD, the relationship is specific for each pacing modality. (PACE 2011; 23–31) |
| Databáze: | OpenAIRE |
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