Journals / Bursa Devlet Hastanesi Bülteni / 2004 / Cilt: 19 - Sayı: 1

Spontan anjinanın QT dispersiyonuna etkisi

The effect of spontaneous angina on QT dispersion

Pages
21–24
Publication Date
2022-10-10
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The QTd and QTcd significantly increased during angina attacks.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:QT dispersion (QTd) is defined as the inteiiead difference between the longest and shortest QT interval on a standard 12-lead electrocardiogram (ECG).
📊
Key Findings & Data:An increased QTd and QTd corrected for heart rate (QTcd) may be of value for prediction of certain arrhythmias.
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Conclusion & Impact:The QTd and QTcd significantly increased during angina attacks.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

QT dispersion (QTd) is defined as the inteiiead difference between the longest and shortest QT interval on a standard 12-lead electrocardiogram (ECG). An increased QTd and QTd corrected for heart rate (QTcd) may be of value for prediction of certain arrhythmias. In this study, we aimed to investigate the effects of spontaneous angina on QTd and QTcd. A total of 50 patients (34 men, 16 women, mean age 54.2 ± 10.2 years) with spontaneous angina were enrolled into the study. ECGs were obtained at rest and during spontaneous angina. The QTd and QTcd significantly increased during angina attacks.

Özet

Standart yüzey elektrokardiyografisinde (EKG) derivasyonlar arasındaki en uzun ve en kısa QT süresi farkı QT dispersiyonu (QTd) olarak tanımlanır. Artmış QTd ve kalp hızına göre düzeltilmiş QTd (QTcd) ani ölüm ve mutlak aritmi riskinin belirleyicisi olarak kullanılabilmektedir. Bu çalışmada spontan anginanın QTd ve QTcd üzerine olan etkilerinin araştırılması amaçlandı. Çalışmaya spontan angina atağı olan 50 hasta (34 erkek, 16 bayan; ortalama yaşları 54.2 ± 10.2) alındı. Tüm hastaların istirahatte ve spontan angina atağında EKG'leri çekildi. Spontan angina atağı esnasında QTd ve QTcd anlamlı olarak artmış bulundu.

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Cite This Article

ÖZDEMİR, L., ÖZDEMİR, B., EKBUL, A., KADERLİ, A. A., GÜÇLÜ, S., AYDINLAR, A. (2022). Spontan anjinanın QT dispersiyonuna etkisi. Bursa Devlet Hastanesi Bülteni, Cilt: 19 - Sayı: 1, 21–24. https://ajindex.com/articles/469438

References (14)

  1. Higman PD, Campbell RWF: QT dispersion. Br Heart J 71: 508-10, 1994
  2. Mirvis DM: Spatial variation of QT intervals in normal persons and patients with acute myocardial infarction. J Am Coll Cardiol 5: 625-31, 1985
  3. Higham PD, Furnis S, Campbell RWF: QT dispersion and components of the QT interval in ischemia and infarction. Br Heart J 73: 32-6, 1995
  4. Day CP, McComb JM, Campbell RWF: QT dispersion: an indication of arrhythmias in patients with long QT intervals. Br Heart J 63: 342-4, 1990
  5. Higham PD, Campbell RWF: QT interval dispersion: a noninvasive marker of suspectibity to arrhythmias in patients with sustained ventricular arrhythmias. Br Heart J 71: 511 -4,1994
  6. Ahnve S: Errors in the visual determination of corrected QT interval during myocardial infarction. J Am Coll Cardiol 5: 699-702, 1985
  7. Dilaveris P, Andrikopuolos G, Metaxas G, Richter D, Avgero-poulou C, Androulakis A, Gialafos E, Michaelides A, Touto-uzas P, Gialafos J: Effects of ischemia on QT dispersion during spontaneous anginal episodes. J Electrocardiol 32:199-206, 1999
  8. Roukema G, Singh PJ, Meijs M, Carvalho C, Hart G: Effect of exercise-induced ischemia on QT interval dispersion. Am Heart J 135: 88-92, 1998
  9. Aytemir K, Bavafa V, Özer N, Aksoyek S, Oto A, Ozmen F: Effect of balloon inflation-induced acute ischemia on QT dispersion during percutaneous transluminal coronary angioplasty. Clin Cardiol 22: 21-4, 1999
  10. Mirvis DM, Goldberger AL: Electrocardiography (Eds. Braun-wald E, Zipes DP, Libby P). Heart Disease. Sixth Edition. WB Saunders Company, Pennsylvania. 2001, pp 92-3
  11. Barr CS, Naas A, Freeman M, Lang CC, Struthers AD: QT dispersion and sudden unexpected death in chronic heart failure. Lancet 343: 327-9, 1994
  12. Spargias KS, Lindsay SJ, Kawar Gl, Greenwood DC, Cowan JC, Ball SG, Hall AS: QT dispersion as a predictor of long-term mortality in patients with acute myocardial infarction and clinical evidence of heart failure. Eur Heart J 20: 1158-65, 1999
  13. Moreno FL, Villanueva T, Karagounis LA, Anderson JL: Reduction in QT interval dispersion by successful thrombolytic therapy in acute myocardial infarction. Circulation 90: 94-100, 1994
  14. Morgan CD, Roberts RS, Haq A, Baigrie RS, Daly PA, Gent M, Armstrong PW: Coronary patency, infarct size and left ventricular function after thrombolytic therapy for acute myocardial infarction: results from the tissue plasminogen activator: Toronto placebo-controlled trial (TPAT). J Am Coll Cardiol 17: 145