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Zapytanie: KUCINSKY
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Tytuł oryginału: P wave signal averaged electrocardiography in prediction of atrial fibrillation induced by transoesophageal atrial pacing in hypertensive patietns.
Tytuł polski: Wartość uśredniania załamka P w przewidywaniu możliwości wywołania migotania przedsionków u chorych z nadciśnieniem tętniczym.
Autorzy: Olexa Peter, Gonsorcik Jozef, Kucinsky Rastislav, Szeghy Dionyz, Farkas Anton
Źródło: Kardiol. Pol. 2002: 56 (2) s.148-154, il., tab., bibliogr. 25 poz. - Tekst równol. w jęz. pol.
Sygnatura GBL: 313,397

Hasła klasyfikacyjne GBL:
  • kardiologia

    Typ dokumentu:
  • praca kliniczna

    Wskaźnik treści:
  • ludzie
  • dorośli 45-64 r.ż.
  • dorośli = 65 r.ż.
  • płeć męska
  • płeć żeńska

    Streszczenie angielskie: Background. Paroxysmal atrial fibrillation (AF) occurs frequently in hypertensive patients due to increased atrial vulnerability. Signal-averaged P-wave has been shown to identify patients with other cardiac disorders who are prone to AF. Aim. To investigate the usefulness of P-wave signal-averaged electrocardiography (ECG) in the prediction of AF inducibility during transoesophageal atrial pacing (TAP) in hypertensives. Methods. The study population consisted of 40 hypertensive patients (19 men/21 women, mean age 60 ń 10, range 44-81 years) without a history of documented AF nor sinus node dysfunction. They were divided into two groups according to the presence or absence of TAP-induced AF. The presence of left ventricular hypertrophy and left atrial as well as ventricular diameter was assessed by echocardiography. The P wave duration derived from the filtered orthogonal leads X, Y, Z and vector magnitude were measured from P-wave triggered signal averaged ECG. Results. Patients with TAP-induced AF demonstrated significantly higher values of the P wave duration (112.9 ń 17.0 msec) compared to the patietns without AF (99.7 ń 15.0 msec, p 0.001). The P wave duration was not influenced by echocardiographic parameters. Left ventricular hypertrophy was significantly associated with TAP-induced AF (p 0.01). The P wave duration 120 msec identified patients at risk of TAP-induced AF with a sensitivity of 67 p.c., specificity of 73 p.c., positive predictive value of 30 p.c. and negative predictive value of 92 p.c...

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