QRS duration
Systolic blood pressure but not electrocardiogram QRS duration is associated with heart rate variability (HRV): a cross-sectional study in rural Australian non-diabetics
... Participants were required to complete a standardized questionnaire to ascertain presence of risk factors. They were asked about previous and current medical condi- tions such as diabetes or cardiovascular disease. ...
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Echocardiographic assessment of inter and intra ventricular dyssynchrony in heart failure patients with normal QRS duration.
... The most recent trial addressing this issue was the ECHO – CRT trial 11 . This was a randomized multicenter trial involving Patients in NYHA Class III or IV heart failure with LVEF <= 35%, diastolic LV dimension ...
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Electrocardiogram derived QRS duration associations with elevated central aortic systolic pressure (CASP) in a rural Australian population
... Considering the pathological implications for increased aortic stiffness and impaired ventricular aortic coupling, it would be logical to suggest that increased central aortic sys- tolic pressure would be associated with ...
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Radial dyssynchrony assessed by cardiovascular magnetic resonance in relation to left ventricular function, myocardial scarring and QRS duration in patients with heart failure
... The study group consisted of 225 patients with heart fail- ure who were referred for a CMR study to a single centre (Good Hope Hospital). The diagnosis of heart failure was made if symptoms of the condition were ...
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Study of QRS duration and R/Q Ratio in the Assessment of Severity of Acute Myocardial Infarction
... of QRS duration in patients of acute myocardial infarction offer important indirect quantitative information regarding the severity and extent of myocardial ...A QRS duration of > ...
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Correlation of QRS duration with intraventricular mechanical dyssynchrony on tissue Doppler imaging in heart failure
... Data were analyzed using a statistical software (SPSS 16). The data were expressed as mean±SD for the continuous variables, and as absolute or relative frequencies for categorical variables. Independent t-test was ...
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A Study on Conduction Abnormalities and QRS duration in Patients with Ischemic Cardiomyopathy and their correlation with Ejection Fraction
... It is becoming increasingly clear that slowing of conduction is not the only cause of conduction delay in the genesis of incomplete right bundle branch block. The length of right bundle branch also plays a significant ...
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ECG Feature Extraction Techniques
... An effective and reliable noise reduction and Electrocardiogram (ECG) feature extraction algorithm is proposed with Contaminated ECG samples are demised using a Butterworth low pass and IIR notch filter. First ...
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ADVANCED WAVELET TRANSFORM TECHNIQUES FOR ECG FEATURE EXTRACTION
... Q and S peak heights and QRS duration are measured. Errors in these extracted ECG features are also calculated. The algorithm offers a good level of Sensitivity (99.84%), Positive Predictivity (99.84%) and ...
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QRS Fragmentation as a Prognostic Test in Acute Coronary Syndrome
... of QRS-fragmentation as a promising bed-side test for assessment of prognosis in those ...and QRS duration ≥ 120 ms as well as patients with permanent pacemakers were ...of QRS in 74 patients ...
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Multipoint Pacing versus conventional ICD in Patients with a Narrow QRS complex (MPP Narrow QRS trial): study protocol for a pilot randomized controlled trial
... prolonged QRS duration as one of the key inclusion criteria [1, ...if QRS duration is < 130 ms ...a QRS duration of < 120 ms according to Brignole et ...narrow QRS ...
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PubMedCentral-PMC5291202.pdf
... minimum QRS-SNP association P-value for each gene region enabled a gene score to be significant in the presence of allelic heterogeneity, ...with QRS duration at each locus in populations of European ...
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Rhythm and conduction abnormalities after surgical correction of Fallot’s Tetralogy
... the QRS complex and Q corrected interval (QTc) duration were significantly different between the 2 groups, right bundle branch block with left anterior hemiblock was noticed especially in patients operated ...
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Arrhythmias and Stokes-Adams Attacks in Acute Rheumatic Fever
... a, After two Stokes-Adams attacks, before insertion of pacemaker: heart rate, 130 beats per minute; no P waves seen; QRS duration, 0.12 seconds; left bundle branch block pattern.. b, Lea[r] ...
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Real-time three-dimensional speckle tracking echocardiography: technical aspects and clinical applications
... Mechanical left ventricular dyssynchrony in heart failure patients with narrow QRS duration as assessed by three-dimensional speckle area tracking strain. Systolic synchrony is impaire[r] ...
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PubMedCentral-PMC5523998.pdf
... of QRS duration on mortality, we excluded patients with paced ...a QRS duration < 120 ms and 14% had a QRS duration ≥ 150 ...between QRS prolon- gation and mortality; ...
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Original Article Use of a dual-chamber pacemaker to achieve an excellent response to cardiac resynchronization therapy in patients with dilated cardiomyopathy and complete left bundle branch block: a case report
... again. QRS duration was narrowed from 200 ms to 137 ms after LUV pacing with RAAVD (Figure ...procedure duration (E/A Pd) were improved at 6 and 12 months post- implantation (Table ...3). QRS ...
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Association between electrocardiographic and echocardiographic markers of stage B heart failure and cardiovascular outcome
... has been strengthened by speckle-tracking echocardiography. This semi-automated method is highly sensitive for the detection of subtle myocardial impairment, provides incremental prognostic value over LVEF 5 and can be ...
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QRS complexes (cardiac beat) in the single lead
... components, QRS complex is the most significant ...of QRS complexes (cardiac beat) in the single lead Electrocardiogram (ECG) is proposed in this ...delineate QRS and nonQRS ...
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FPGA based design and implementation for detecting Cardiac arrhythmias
... in QRS complex due to rhythm origination and conduction path in order to discriminate by a neural ...for QRS features extraction and classification was proposed ...
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