However complete atrioventricular block, heart failure, sick sinus syndrome and all-cause mortality were not increased in the patients with IVCD. Only 5 of 12 analyzed criteria had a specificity > or 0.90 among our patients: (1) a triphasic configuration (Rsr' or Rr') QRS complex in V1 in the presence of a right. However complete atrioventricular block (HR 0.13, p=0.10), heart failure (HR 1.69, p=0.20), sick sinus syndrome (HR 0.39, p=0.16) and all-cause mortality (HR 0.79, p=0.79) were not increased in the IVCD group.Ĭonclusions: In the patients with structurally normal heart, IVCD was associated with future development of atrial fibrillation. Methods and results: We analyzed prospectively the specificity of the QRS morphological criteria previously described in ECGs during sinus rhythm of 232 patients with IVCD. And using univariate Cox’s regression analysis, only the risk of atrial fibrillation was increased in the IVCD group (hazard ratio(HR) 1.97, p=0.002). Results: During the follow-up of 6.9 ± 3.2 years, the cumulative incidence rates of complete atrioventricular block, heart failure, atrial fibrillation, sick sinus syndrome and all-cause mortality in the IVCD group were higher than no IVCD group (all P < 0.001, except for all-cause mortality (P=0.049)). In a matched-cohort design, 353 patients (IVCD group) (male 83.9% with a mean age of 52.2☑3.3 years) were matched for age and sex with 1060 patients (no IVCD group) who had neither IVCD nor structural heart diseases. The patients were excluded if they had structural heart diseases, such as myocardial infarction, valvular heart disease, congenital heart disease and cardiomyopathy. IVCD was defined QRS >110ms without the criteria of complete or incomplete bundle-branch block. Methods: Between 20, we evaluated the patients who underwent 12-lead electrocardiography. Hypothesis: Long-term prognosis of patients with IVCD in structurally normal heart would be poorer than patients without IVCD. This study was performed to elucidate long-term prognosis of IVCD in structurally normal heart. Not infrequently, these computers will call a QRS axis of 0 to -30 degrees, borderline left axis deviation. Some ECG machines call any axis in the right upper quadrant (between 0 and -90 degrees) left axis deviation.
Introduction: Long-term prognosis of nonspecific intraventricular conduction delay(IVCD) remains unclear. Left axis deviation by definition is a coronal QRS axis of more than -30 degrees. Customer Service and Ordering Information.Stroke: Vascular and Interventional Neurology.Journal of the American Heart Association (JAHA).showed a prevalence of IVCD in 0.6 of the Sinus rhythm. Circ: Cardiovascular Quality & Outcomes DEFINITION Intraventricular conduction delay (IVCD) is a common clinical abnormality related to.
Arteriosclerosis, Thrombosis, and Vascular Biology (ATVB).
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