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The relation of fragmented QRS with tissue Doppler derived parameters in patients with b-thalassaemia major.     
Yazarlar
Eyüp Büyükkaya
Mehmet Fatih Karakaş
Mustafa Kurt
Perihan Bilen
Fatih Yalçın
Hatay Mustafa Kemal Üniversitesi, Türkiye
Murat Çelik
Rami Helvacı
Hasan Kaya
Hatay Mustafa Kemal Üniversitesi, Türkiye
Filiz Ertekin
 Erdoğan SÖKMEN Erdoğan SÖKMEN
Kırşehir Ahi Evran Üniversitesi, Türkiye
Nihat Şen
Adnan Burak Akçay
Sağlık Bilimleri Üniversitesi, Türkiye
Özet
Purpose: The most important complication encountered in patients with b-thalassaemia major is degenerative fibrosis developing as a result of iron accumulation in myocardial tissue. Dysfunction pursues this accumulation. Recently, presence of fragmented QRS (fQRS) in ECG has been regarded as a predictor of myocardial fibrosis. We aimed in our study to investigate the frequency with which fQRS develops in patients with b-thalassaemia major and to disclose the correlation between fQRS frequency and Doppler-derived indices.
Methods: The patients with b-thalassaemia major (n=66; mean age: 23 +/- 6 years) and healthy controls (n=30; mean age: 23 +/- 4 years) were included. fQRS pattern was described as presence of RSR' manifested as existence of additional R wave and notching in either R or S waves in ECG recordings. 2D, M-mode, conventional Doppler, tissue Doppler echocardiography parameters were assessed. Mean serum ferritin levels over past 5 years were also calculated.
Results: When compared to those in control group, fQRS was more frequent in b-thalassaemia major group, indicating statistical significance (p = 0.001). While E/Em and ferritin level exhibited statistically significant increase in thalassaemia patients with fQRS (p < 0.05), the mean Em and Sm values were found to be significantly low (p < 0.05).
Conclusions: fQRS was frequently observed in the patients with b-thalassaemia major, which was of statistical significance. Tissue Doppler-derived diastolic and systolic indices in thalassaemia cases with fQRS showed statistically significant impairment compared to those without fQRS. In conclusion, fQRS may represent a novel noninvasive marker for cardiac involvement in patients with b-thalassaemia major.
Anahtar Kelimeler
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı CLINICAL AND INVESTIGATIVE MEDICINE
Dergi ISSN 0147-958X
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce
Basım Tarihi 01-2012
Cilt No 35
Sayı 5
BM Sürdürülebilir Kalkınma Amaçları
Atıf Sayıları
WoS 6

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