Journals / Türk Kardiyoloji Derneği Arşivi / 2009 / Cilt: 37 - Sayı: 8

Duchenne musküler distrofisinde repolarizasyon anormallikleri

Repolarization abnormalities in Duchenne-type muscular dystrophy

Pages
538–542
Publication Date
2022-11-05
DOI
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The results were compared with those of a control group of 34 healthy children (mean age 9.5±3.1 years).Results: The mean QTc and JTc dispersion values were significantly higher in DMD patients compared to controls (QTc: 78.0±20.6 msec vs. 50.9±16.5 msec; JTc: 77.6±20.5 msec vs. 50.8±17.7 msec; p

📌 3 Key Takeaways

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Objective & Hypothesis:Objectives: Duchenne-type muscular dystrophy (DMD) is an X-linked recessive inherited disease affecting mainly the skeletal and cardiac muscles.
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Key Findings & Data:We aimed to seek associations between the incidence of ventricular arrhythmias and corrected QT (QTc) dispersion and its component, corrected JT (JTc) dispersion in patients with DMD.Study design: The study included 43 consecutive male patients (mean age 8.8±3.0 years; range 3 to 17 years) with DMD.
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Conclusion & Impact:The results were compared with those of a control group of 34 healthy children (mean age 9.5±3.1 years).Results: The mean QTc and JTc dispersion values were significantly higher in DMD patients compared to controls (QTc: 78.0±20.6 msec vs. 50.9±16.5 msec; JTc: 77.6±20.5 msec vs. 50.8±17.7 msec; p
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Objectives: Duchenne-type muscular dystrophy (DMD) is an X-linked recessive inherited disease affecting mainly the skeletal and cardiac muscles. We aimed to seek associations between the incidence of ventricular arrhythmias and corrected QT (QTc) dispersion and its component, corrected JT (JTc) dispersion in patients with DMD.Study design: The study included 43 consecutive male patients (mean age 8.8±3.0 years; range 3 to 17 years) with DMD. On standard 12-lead electrocardiograms (ECG) the QT and JT intervals and the corrected QT (QTc) and JTc dispersions were calculated. Ventricular extrasystoles were assessed on 24-hour Holter ECG recordings. Ventricular dysrhythmic patterns were evaluated according to the Lown-Wolf classification. The results were compared with those of a control group of 34 healthy children (mean age 9.5±3.1 years).Results: The mean QTc and JTc dispersion values were significantly higher in DMD patients compared to controls (QTc: 78.0±20.6 msec vs. 50.9±16.5 msec; JTc: 77.6±20.5 msec vs. 50.8±17.7 msec; p

Özet

Amaç: Duchenne musküler distrofisi (DMD), X’e bağlı resesif kalıtılan ve özellikle iskelet ve kalp kasını etkileyen genetik bir hastalıktır. Bu çalışmada, DMD’li hastalarda ventriküler aritmi varlığı ile düzeltilmiş QT (QTc) ve onun bileşeni olan düzeltilmiş JT (JTc) dağılımı (dispersiyon) arasındaki ilişki araştırıldı.Ça­lış­ma pla­nı: Çalışmaya DMD’li ardışık 43 erkek hasta (ort. yaş 8.8±3.0; dağılım 3-17) alındı. Standart 12 derivasyonlu elektrokardiyografi (EKG) kayıtları üzerinden QT ve JT intervalleri ve düzeltilmiş QT (QTc) ve JTc dağılım değerleri hesaplandı. Yirmi dört saatlik Holter EKG kayıtlarında ventrikül ekstrasistolleri araştırıldı ve ventrikül ritim bozukluğu örnekleri Lown-Wolf sınıflamasına göre derecelendirildi. Sonuçlar 34 sağlıklı çocuktan (ort. yaş 9.5±3.1) oluşan kontrol grubuyla karşılaştırıldı.Bul­gu­lar: Ortalama QTc ve JTc dağılım değerleri hasta grubunda kontrol grubuna göre anlamlı derecede yüksek bulundu (QTc için 78.0±20.6 msn ve 50.9±16.5 msn; JTc için 77.6±20.5 msn ve 50.8±17.7 msn; p

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Cite This Article

NİŞLİ, K., ÖNER, N., ÖMEROĞLU, R. E., BORNAUN, H., ERTUĞRUL, T., YILMAZER, M. M. (2022). Duchenne musküler distrofisinde repolarizasyon anormallikleri. Türk Kardiyoloji Derneği Arşivi, Cilt: 37 - Sayı: 8, 538–542. https://ajindex.com/articles/633417

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References (16)

  1. Malik M, Batchvarov VN. Measurement, interpretation and clinical potential of QT dispersion. J Am Coll Cardiol 2000;36:1749-66
  2. Day CP, McComb JM, Campbell RW. QT dispersion: an indication of arrhythmia risk in patients with long QT intervals. Br Heart J 1990;63:342-4
  3. Linker NJ, Colonna P, Kekwick CA, Till J, Camm AJ, Ward DE. Assessment of QT dispersion in symptomatic patients with congenital long QT syndromes. Am J Cardiol 1992;69:634-8
  4. Priori SG, Napolitano C, Diehl L, Schwartz PJ. Dispersion of the QT interval. A marker of therapeutic efficacy in the idiopathic long QT syndrome. Circulation 1994;89:1681-9
  5. Barr CS, Naas A, Freeman M, Lang CC, Struthers AD. QT dispersion and sudden unexpected death in chronic heart failure. Lancet 1994;343:327-9
  6. Higham PD, Furniss SS, Campbell RW. QT dispersion and components of the QT interval in ischaemia and infarction. Br Heart J 1995;73:32-6. 7. van de Loo A, Arendts W, Hohnloser SH. Variability of QT dispersion measurements in the surface electrocardiogram in patients with acute myocardial infarction and in normal subjects. Am J Cardiol 1994;74:1113-8
  7. Perloff JK, de Leon AC Jr, O’Doherty D. The cardiomyopathy of progressive muscular dystrophy. Circulation 1966;33:625-48
  8. Jay V, Vajsar J. The dystrophy of Duchenne. Lancet 2001;357:550-2
  9. Frankel KA, Rosser RJ. The pathology of the heart in progressive muscular dystrophy: epimyocardial fibrosis. Hum Pathol 1976;7:375-86
  10. Rubin IL, Buchberg AS. The heart in progressive muscular dystrophy. Am Heart J 1952;43:161-9
  11. Gilroy J, Cahalan JL, Berman R, Newman M. Cardiac and pulmonary complications in Duchenne’s progressive muscular dystrophy. Circulation 1963;27:484-93
  12. Perloff JK. Cardiac rhythm and conduction in Duchenne’s muscular dystrophy: a prospective study of 20 patients. J Am Coll Cardiol 1984;3:1263-8
  13. Yanagisawa A, Miyagawa M, Yotsukura M, Tsuya T, Shirato C, Ishihara T, et al. The prevalence and prognostic significance of arrhythmias in Duchenne type muscular dystrophy. Am Heart J 1992;124:1244-50
  14. Chenard AA, Becane HM, Tertrain F, de Kermadec JM, Weiss YA. Ventricular arrhythmia in Duchenne muscular dystrophy: prevalence, significance and prognosis. Neuromuscul Disord 1993;3:201-6
  15. Gulati S, Saxena A, Kumar V, Kalra V. Duchenne muscular dystrophy: prevalence and patterns of cardiac involvement. Indian J Pediatr 2005;72:389 93
  16. Hunsaker RH, Fulkerson PK, Barry FJ, Lewis RP, Leier CV, Unverferth DV. Car