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Relationship between Fragmented QRS Complex and Aortic Stiffness in Chronic Hemodialysis Patients    
Yazarlar (5)
Prof. Dr. Aydın GÜÇLÜ Prof. Dr. Aydın GÜÇLÜ
Kırşehir Ahi Evran Üniversitesi, Türkiye
GÖKAY NAR
ATİLLA İÇLİ
NAİL ÖZHAN
SİREN SEZER
Devamını Göster
Özet
This study aimed to evaluate the correlation between fragmented QRS complex (fQRS), aortic stiffness, and diastolic dysfunction in hemodialysis patients. A sample of 56 patients who received hemodialysis treatment was stratified into 2 groups according to their electrocardiography (ECG) patterns with or without fQRS. Baseline characteristics and laboratory parameters of patients were documented. Conventional echocardiographic and Doppler echocardiographic procedures were performed in all patients. The mean early (Em) diastolic and late (Am) diastolic myocardial velocities were calculated. These tests were performed before dialysis. The Student t test, Mann-Whitney U test, χ2 test, Spearman correlation, and multivariate linear regression analysis were used to analyze parameters where appropriate. Of the 56 patients under hemodialysis, fQRS in ECG was detected in 26 (46.4%). Echocardiographic evaluation showed that deceleration time (237.57 ± 40.10 ms; p = 0.030), isovolumic relaxation time (126.84 ± 15.62 ms; p < 0.001), early (E)/late (A) ventricular filling velocity (E/A) ratio (1.15 ± 0.40; p ≤ 0.001), and aortic stiffness index value (9.62 ± 4.53; p = 0.016) exhibited a statistical increase in hemodialysis patients with fQRS compared to patients without fQRS. E (58.23 ± 19.96 m/s; p = 0.004), and Em (5.96 ± 2.08 cm/s; p = 0.023) velocity levels were significantly lower in hemodialysis patients with fQRS than patients without fQRS. Aortic stiffness closely correlated with diastolic dysfunction (deceleration time r = 0.273, p = 0.042; isovolumic relaxation time r = 0.497, p < 0.001; E/A ratio r = -0.449, p = 0.001). On multivariate linear regression analysis, fQRS and aortic stiffness were independently associated in hemodialysis patients (β = 0.321, p = 0.049). Increased aortic stiffness and left ventricular systolic dysfunction were observed more frequently in hemodialysis patients with fQRS than in patients without fQRS. fQRS is an important determinant of aortic stiffness in hemodialysis patients.
Anahtar Kelimeler
Fragmented QRS complex | Aortic stiffness | Diastolic dysfunction | Hemodialysis
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı Medical Principles and Practice
Dergi ISSN 1011-7571
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q4
Makale Dili İngilizce
Basım Tarihi 01-2017
Cilt No 26
Sayı 1
Sayfalar 66 / 70
Doi Numarası 10.1159/000452418
Makale Linki https://www.karger.com/?doi=10.1159/000452418