BACKGROUND: Fragmented QRS complexes (fQRS) were associated with left ventricular mass (LVM) in hypertensive patients. Our study aimed to investigate the association between fQRS and left ventricular hypertrophy (LVH) in hypertensive patients. METHODS: Two hundred thirty-six hypertensive patients were divided into fQRS group and non-fQRS group. fQRS were defined as the presence of an additional R wave, notching in the R or S wave, or the presence of >1 R' in two contiguous leads. Echocardiography was used to detect LVH. RESULTS: Patients with fQRS had higher levels of LVM than patients without fQRS (181.55 ± 65.64 g vs. 149.21 ± 35.08 g, P < 0.001). Receiver operating characteristic curves showed areas under the curve was 0.62 for fQRS (95% CI 0.54-0.69, P = 0.003). In univariate analyses, the presence of fQRS on ECG was positively associated with LVM. Multiple regression analyses found fQRS was associated with LVM, independently. CONCLUSION: fQRS is a common electrocardiographic phenomenon in patients with hypertension. Although the diagnostic value for LVH is limited, the presence of fQRS on ECG is associated with a higher risk for worse LVH.
BACKGROUND: Fragmented QRS complexes (fQRS) were associated with left ventricular mass (LVM) in hypertensivepatients. Our study aimed to investigate the association between fQRS and left ventricular hypertrophy (LVH) in hypertensivepatients. METHODS: Two hundred thirty-six hypertensivepatients were divided into fQRS group and non-fQRS group. fQRS were defined as the presence of an additional R wave, notching in the R or S wave, or the presence of >1 R' in two contiguous leads. Echocardiography was used to detect LVH. RESULTS:Patients with fQRS had higher levels of LVM than patients without fQRS (181.55 ± 65.64 g vs. 149.21 ± 35.08 g, P < 0.001). Receiver operating characteristic curves showed areas under the curve was 0.62 for fQRS (95% CI 0.54-0.69, P = 0.003). In univariate analyses, the presence of fQRS on ECG was positively associated with LVM. Multiple regression analyses found fQRS was associated with LVM, independently. CONCLUSION: fQRS is a common electrocardiographic phenomenon in patients with hypertension. Although the diagnostic value for LVH is limited, the presence of fQRS on ECG is associated with a higher risk for worse LVH.
Authors: Francisco Femenía; Maurico Arce; Jorge Van Grieken; Emilce Trucco; Luis Mont; Mauricio Abello; José L Merino; Máximo Rivero-Ayerza; Bulent Gorenek; Carlos Rodriguez; Wilma M Hopman; Adrian Baranchuk Journal: J Interv Card Electrophysiol Date: 2013-09-08 Impact factor: 1.900
Authors: Mehmet Eyuboglu; Mehmet Akif Ekinci; Suleyman Karakoyun; Ugur Kucuk; Omer Senarslan; Bahri Akdeniz Journal: Arq Bras Cardiol Date: 2016-10 Impact factor: 2.000