Showing papers in "Journal of Electrocardiology in 2010"

TL;DR: In this article, issues relating to inaccuracy of ECG preprocessing filters are investigated in the context of facilitating efficient ECG interpretation and diagnosis, and several suggestions are made to improve and update existing ECG data preprocessing standards and guidelines.

TL;DR: The aims of this article are to propose a classification of the ECG patterns encountered in different clinical scenarios of ACS, which need to be better defined in future studies to correlate them with the severity and extent of ischemia.

TL;DR: A selection of T-wave morphology variables is found to be clinically independent of age, sex, and heart rate, including Tpeak-Tend interval, skewness, and kurtosis.

TL;DR: A computer model evaluated the effect of changes in anatomy and conduction velocity of the left ventricle on QRS complex characteristics in patients with LVH and showed that the LVM is not the only determinant of theQRS complex changes in LVH, but it is rather a combination of anatomic and electric remodeling that creates the whole spectrum of the Q RS complex changes seen inLVH patients.

TL;DR: An association between right-sided accessory pathways with overt ventricular preexcitation and LV dyssynchrony may cause dilated cardiomyopathy is suggested by the rapid normalization of ventricular function and reverse LV remodeling after a loss of vent CARDIomyopathy.

TL;DR: Spatial QRS-T angles are best approximated by regression-related transforms but were significantly smaller than those derived from the inverse Dower-related transformation.

TL;DR: The ECG-based sleep apnea detection algorithm based on analysis of a single-lead ECG provides accurate apneic detection and quantification and has the potential for numerous applications in sleep medicine.

TL;DR: Results support a potential role for 24-hour Holter recordings to identify older adults at increased or lower risk of SCD and suggest a need for screening methods for higher/lower risk methods.

TL;DR: This review uses an electrophysiologic model of the rabbit ventricles to understand how so-called commotio cordis, the mechanical impact to the precordial region of the heart, can initiate ventricular tachycardia via the recruitment of stretch-activated channels.

TL;DR: SA-K resembled SA-F best and when there is no specific reason either to synthesize VCGs with the inverse Dower matrix or to calculate the spatial QRS-T angle with Rautaharju's method, it seems prudent to use the Kors matrix.

TL;DR: Black men and women have a significantly higher prevalence of ECG abnormalities, independent of traditional cardiovascular risk factors, than whites in a contemporary cohort of middle-aged participants.

TL;DR: Evidence of inappropriate monitoring is shown: undermonitoring for ischemia and QTc prolongation and over monitoring for all 3 types of monitoring, especially arrhythmia monitoring.

TL;DR: The Working Group on Electrocardiographic Diagnosis of Left Ventricular Hypertrophy presents the alternative conceptual model for the ECG diagnosis of left ventricular hypertrophy (LVH).

TL;DR: The ECG features in an Scn5a+/− mouse establish it as a suitable model for Brugada syndrome and demonstrate abnormal conduction and repolarization phenomena.

TL;DR: Resting 12-lead A-ECG scores that are simultaneously more sensitive than pooled conventional ECG criteria for detecting HCM and more specific for distinguishing healthy athletes and other healthy controls from HCM can be constructed.

TL;DR: By incorporating a patient responsiveness test, as well as features that eliminate or reduce signal interference common to external electrocardiogram electrodes, the WCD detection algorithm has a low risk of inappropriate shocks.

TL;DR: It is still not possible to come up with clear guidelines for how to work up and risk stratify individuals with Short QT Syndrome, but the value of an electrophysiologic study, Holter monitoring or stress testing to assess QT adaptation to heart rate and T wave morphology analysis may all be helpful, but not well-established, tests in this setting.

TL;DR: BRS(PRSA) is an independent and strong predictor of mortality in patients with heart failure and an extension of the monovariate PRSA technology used for calculation of deceleration capacity.

TL;DR: Most critically ill patients (69%) have AHA indications for QT interval monitoring, and these indications successfully captured the majority of critical ill patients developing QT intervals prolongation.

TL;DR: Atrial effective refractory period (AERP) shortened, and AF inducibility increased progressively in the periodontitis group, and there was a negative correlation between the levels of serum inflammatory factors and AERP values (P < .05).

TL;DR: QRS widening is associated with ventricular tachyarrhythmia only if accompanied by low SAI QRST, and in the univariate analysis, QRS width did not predict VT/VF.

TL;DR: These mechanisms are discussed and the role of the QT interval duration as a surrogate marker of increased risk for arrhythmia in both the LQTS and the SQTS is questioned.

TL;DR: It is suggested that HF-QRS analysis could provide valuable information both to detect acute ischemia and to quantify myocardial area at risk.

TL;DR: In ischemic cardiomyopathy, consideration of fQRS complexes does not improve Q wave prediction of infarct volume; but Selvester Score was more accurate.

TL;DR: It can be concluded that use of localized measure provides equal or higher performance in pathology detection compared with the overall SD1 or SD2.

TL;DR: ECG-LVH by Cornell voltage calculated from a 7-lead ECG (using SV in the formula) has demographic and clinical associations that are similar to that calculated fromA standard 12-leadECG ( using SV(3)).

TL;DR: The history the teletransmitted ECG and some of the recent results obtained when used in routine practice for acute triage and referral for primary percutaneous coronary intervention are described.

TL;DR: From the electrocardiographic (ECG) point of view, the tako-tsubo cardiomyopathy behaves like an acute subepicardial circumferential ischemic syndrome, and the very rapid appearance and disappearance of a Q wave are "against the rules."

TL;DR: The aim of this study was to investigate atrial conduction time in patients with mitral annulus calcification using P-wave dispersion (PWD) and electromechanical coupling measured with the surface electrocardiogram and tissue Doppler echocardiography.

TL;DR: In patients with reperfused anterior ST-elevation myocardial infarction and depressed LVEF, ceCMR is moderately correlated with the QRS in the serial measurement of infarct size and LVEf.