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Wyszukujesz frazę "Bachmann's bundle" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
An echocardiographic tool for the interatrial conduction disorders – old dog, new tricks?
Autorzy:
Zawadzki, Jacek M.
Gajek, Jacek J.
Sławuta, Agnieszka
Kozłowski, Dariusz
Zaborniak, Gabriel
Kudliński, Bartosz
Powiązania:
https://bibliotekanauki.pl/articles/24987707.pdf
Data publikacji:
2024-01-08
Wydawca:
Gdański Uniwersytet Medyczny
Tematy:
ECG
P wave
LA strain
echocardiography
Bachmann's bundle
Opis:
Background: Bachmann’s bundle plays a crucial role in the physiology of interatrial signal conduction. In the 1970s, Bayes de Luna introduced the definition of interatrial blocks (IABs), which negatively influence atrioventricular (AV) synchrony and left atrial (LA) activation. We aimed to assess the potential of LA strain technology in evaluating the mechanics of LA in patients with correct conduction and IABs. Additionally, we measured the parameters of regurgitation in pulmonary veins (PV), which depend on the type of interatrial conduction. Material and methods: The study group comprised 51 patients (26M, 25F) with symptomatic COVID-19 and sinus rhythm. Our study analyzed their medical history, electrocardiography (ECG) and echocardiography, including the LA strain parameters. Results: Global peak atrial longitudinal strain (PALS) depended on P wave duration, LA volume, left ventricular ejection fraction (LV EF) and inferior pulmonary veins (PV) regurgitation parameters. Global peak atrial contractile strain (PACS) statistically depends on the LV EF, LA volume and the P wave morphology. Conclusions: The presence of IABs negatively influences PACS and PALS. Examining LA strain is complementary to accurate ECG, which may be helpful in everyday clinical practice, particularly in diagnosing heart failure with preserved ejection fraction (HFpEF) and as a predictor of new episodes of atrial fibrillation (AF).
Źródło:
European Journal of Translational and Clinical Medicine; 2023, 6, 2; 26-35
2657-3148
2657-3156
Pojawia się w:
European Journal of Translational and Clinical Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
P wave duration and morphology in patients with atrial fibrillation
Autorzy:
Mercik, Jakub Szymon
Unkell, Malte
Marinov, Maxim
Wolff, Peter Stephan
Radziejewska, Jadwiga
Gajek, Jacek
Powiązania:
https://bibliotekanauki.pl/articles/1196135.pdf
Data publikacji:
2020-11-12
Wydawca:
Gdański Uniwersytet Medyczny
Tematy:
atrial fibrillation
P wave duration
P wave morphology
Bachmann's bundle
Opis:
Background: Functional and structural atrial changes contribute to AF. It decreases conduction velocity and forms intra atrial blocks. In the ECG those changes are manifested by the duration and morphology of the P wave. Material and method: The study group consisted of 50 patients with atrial fibrillation. There were 27 women and 23 men, aged 65.3 +/- 9.8 years. 22 patients had paroxysmal AF and 28 had persistent AF, in the latter direct current cardio version was performed. Results: In patients with a prolonged episodes of atrial fi- brillation the P wave duration was longer in comparison to patients with sinus rhythm (187.1 +/- 31.5 vs 161.1 +/- 18.8 ms; p = 0.006). There were significant differences in P wave duration among the patients with normal and abnormal interatrial conduction, with the longest duration in complete Bachmann's bundle block group (152.7 +/- 17.5 vs 165.3 +/- 15.3 vs 207.9 +/- 27.5 ms; p < 0.001). Conclusions: In patients with persistent atrial fibrillation the duration of the P wave is prolonged in comparison to paroxysmal. In the majority of patients prolongation of the P wave duration is dependent on different forms of conduction block. The morphological changes of P waves are caused by the arrhythmia rather than left atrial hypertrophy.
Źródło:
European Journal of Translational and Clinical Medicine; 2020, 3, 2; 22-28
2657-3148
2657-3156
Pojawia się w:
European Journal of Translational and Clinical Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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