当前位置： SCI文献检索 > JOURNAL OF ELECTROCARDIOLOGY期刊下所有文献 > Complexity of the dynamic QT variability and RR variability in patients with acute anterior wall myocardial infarction: a novel technique using a non-linear method.

Complexity of the dynamic QT variability and RR variability in patients with acute anterior wall myocardial infarction: a novel technique using a non-linear method.

Abstract：

:QT and RR intervals' fluctuations are implicated in the development of malignant arrhythmias. Recent research has quantified repolarization lability using stochastic and linear methods. However, QT-RR intervals are nonlinearly coupled. To this end, QT and RR intervals were extracted from twenty four patients with acute myocardial infarction (AMI) and 13 controls, and a measure of local dimensional complexity (pointwise correlation dimension, PD2) was calculated. PD2 of QT intervals was significantly higher for the patients than for controls (4.83 +/- 0.81 versus 3.40 +/- 0.76, P =.0001), and vice versa for RR intervals (2.51 +/- 0.62 versus 2.91 +/- 0.42, P =.028). The RR and QT measures of complexity were highly correlated only among controls (r = 0.769, P =.0021). Our results support the presence of autonomic abnormalities during infarction and might complement existing tools for assessment of increased risk for sudden death after AMI.

journal_name

J Electrocardiol

journal_title

Journal of electrocardiology

authors

Nahshoni E,Strasberg B,Adler E,Imbar S,Sulkes J,Weizman A

doi

10.1016/j.jelectrocard.2004.04.008

keywords:

subject

Has Abstract

pub_date

2004-07-01 00:00:00

pages

173-9

issue

3

eissn

0022-0736

issn

1532-8430

pii

S0022073604000469

journal_volume

37

pub_type

杂志文章

相关文献

JOURNAL OF ELECTROCARDIOLOGY文献大全
  • Isolated T wave alternans elicited by hypocalcemia in dogs.

    abstract：:Isolated T wave alternans (TWA) could be consistently induced in 13 dogs by infusion of an acid dextrose solution (ACD) and in nine with a 2% EDTA disodium solution. To study the factors concerned in evoking TWA, serial determinations of total and ionized serum calcium (ICa), Mg, K, pH, pCO2 and pO2 were performed. Ar...

    journal_title：Journal of electrocardiology

    pub_type： 杂志文章

    doi：10.1016/s0022-0736(78)80098-3

    authors： Navarro-Lopez F,Cinca J,Sanz G,Magriña J,Betriu A

    更新日期：1978-04-01 00:00:00

  • JT interval: What does this interval mean?

    abstract：:The JTp interval gained interest as a marker differentiating effects of drugs on cardiac ion channels. For JTp interval, both the beginning - identification of J point and identification of T wave end remains the subject of substantial variability. We aimed to analyze diagnostic and prognostic performance of JTp inter...

    journal_title：Journal of electrocardiology

    pub_type： 杂志文章

    doi：10.1016/j.jelectrocard.2017.07.019

    authors： Zareba W,McNitt S,Polonsky S,Couderc JP

    更新日期：2017-01-01 00:00:00

  • Spectrotemporal and spectral turbulence analysis of the signal-averaged P wave in paroxysmal atrial fibrillation.

    abstract：:Patients with paroxysmal atrial fibrillation (AF) have greater overall P wave magnitude than control subjects, but the temporal localization of the increased energy is unknown. P wave spectral turbulence has not been investigated in such patients, and the optimum methodology for studying P wave signals has not been de...

    journal_title：Journal of electrocardiology

    pub_type： 杂志文章

    doi：10.1016/s0022-0736(97)80013-1

    authors： Stafford PJ,Vincent R

    更新日期：1997-04-01 00:00:00

  • Compensating conduction times as a mechanism of alternating reentry tachycardia: computer modelling experiments.

    abstract：:This article concerns a currently reported hypothesis explaining the alternations of conduction time during intra atrioventricular (AV) nodal reentrant tachycardia (AVNRT). This hypothesis supposes simple mutual influence of sequences of intranodal conduction during reentry tachycardia that use the same circuit in dif...

    journal_title：Journal of electrocardiology

    pub_type： 杂志文章

    doi：10.1016/0022-0736(89)90024-1

    authors： Malik M,Camm AJ

    更新日期：1989-01-01 00:00:00

  • Facilitation of epinephrine-induced afterdepolarizations by class III antiarrhythmic drugs.

    abstract：:The electrophysiologic actions of epinephrine (10(-9) M, 10(-8) M, and 10(-7) M) were evaluated in canine Purkinje fibers pretreated with the class III antiarrhythmic drugs clofilium (10(-7) M) or d,l-sotalol (10(-6) M). Clofilium and d,l-sotalol prolonged action potential duration at 50% and 90% of repolarization wit...

    journal_title：Journal of electrocardiology

    pub_type： 杂志文章

    doi：10.1016/s0022-0736(97)80007-6

    authors： Patterson E,Scherlag BJ,Szabo B,Lazzara R

    更新日期：1997-07-01 00:00:00

  • Automated detection of ventricular pre-excitation in pediatric 12-lead ECG.

    abstract：BACKGROUND:With increased interest in screening of young people for potential causes of sudden death, accurate automated detection of ventricular pre-excitation (VPE) or Wolff-Parkinson-White syndrome (WPW) in the pediatric resting ECG is important. Several recent studies have shown interobserver variability when readi...

    journal_title：Journal of electrocardiology

    pub_type： 杂志文章

    doi：10.1016/j.jelectrocard.2015.08.006

    authors： Gregg RE,Zhou SH,Dubin AM

    更新日期：2016-01-01 00:00:00

  • Electromechanical mapping with MRI tagging and epicardial sock electrodes.

    abstract：:Methods currently exist for the precise measurement of local three-dimensional myocardial motion noninvasivly with magnetic resonace imaging tagging. From these motion estimates, strain images representing the local deformation of the myocardium can be formed to show local myocardial contraction. These images clearly ...

    journal_title：Journal of electrocardiology

    pub_type： 杂志文章

    doi：10.1054/jelc.2002.37156

    authors： McVeigh E,Faris O,Ennis D,Helm P,Evans F

    更新日期：2002-01-01 00:00:00

  • Evaluation of ECG algorithms designed to improve detect of transient myocardial ischemia to minimize false alarms in patients with suspected acute coronary syndrome.

    abstract：BACKGROUND:Patients hospitalized for suspected acute coronary syndrome (ACS) are at risk for transient myocardial ischemia. During the "rule-out" phase, continuous ECG ST-segment monitoring can identify transient myocardial ischemia, even when asymptomatic. However, current ST-segment monitoring software is vastly unde...

    journal_title：Journal of electrocardiology

    pub_type： 杂志文章

    doi：10.1016/j.jelectrocard.2017.10.005

    authors： Pelter MM,Xu Y,Fidler R,Xiao R,Mortara DW,Xiao H

    更新日期：2018-01-01 00:00:00

  • Detection of patients with coronary artery disease using cardiac magnetic field mapping at rest.

    abstract：:We studied the use of cardiac magnetic field mapping to detect patients with CAD without subjecting them to stress. Fifty-nine healthy control subjects and 101 patients with CAD without previous MI were included. The optimal positions for detecting CAD were located in the left superior parasternal and in the inferior ...

    journal_title：Journal of electrocardiology

    pub_type： 杂志文章

    doi：10.1016/j.jelectrocard.2007.03.013

    authors： Gapelyuk A,Wessel N,Fischer R,Zacharzowsky U,Koch L,Selbig D,Schütt H,Sawitzki B,Luft FC,Dietz R,Schirdewan A

    更新日期：2007-09-01 00:00:00

  • Apparent electrocardiogram left ventricular hypertrophy during tachycardia.

    abstract：:The electrocardiographic transient display of left ventricular hypertrophy (LVH), during rapid heart rates, in the setting of sinus/supraventricular tachycardias and atrial fibrillation, is illustrated via 3 case reports. This common occurrence is expressed by an increase in the S-waves in leads V2-V5, during tachycar...

    journal_title：Journal of electrocardiology

    pub_type： 杂志文章

    doi：10.1016/j.jelectrocard.2021.01.001

    authors： Madias JE

    更新日期：2021-01-09 00:00:00

  • The clinical implications of electrocardiographic changes in first acute myocardial infarction.

    abstract：:To assess the prognostic significance and the clinical implications of the electrocardiographic findings of the first acute myocardial infarction, the in-hospital mortality and complications and three-year follow-up of 180 patients were analyzed. The patients were divided according to the infarction type (transmural, ...

    journal_title：Journal of electrocardiology

    pub_type： 杂志文章

    doi：10.1016/s0022-0736(85)80019-4

    authors： Aysha MH,Shayib MA

    更新日期：1985-10-01 00:00:00

  • Mechanisms of ST change in partial thickness ischemia.

    abstract：:The origin of ST depression in ischemia remains poorly understood. The accepted source is of intracellular current flowing between the ischemic and non ischaemic muscle both in systole and diastole such that the AC recorded electrocardiogram shows ST elevation over the ischemic area. The difficulty comes with partial ...

    journal_title：Journal of electrocardiology

    pub_type： 杂志文章

    doi：10.1016/j.jelectrocard.2003.09.002

    authors： Kilpatrick D,Johnston PR,Li DS

    更新日期：2003-01-01 00:00:00

  • QRS integral: an electrocardiographic indicator of mechanical interventricular asynchrony.

    abstract：AIM:The aim of this study was to investigate whether interventricular asynchrony (IVA) can be measured by electrocardiography. METHODS:Sixty-two patients (New York Heart Association heart failure functional class III: age, mean +/- SD: 64 +/- 9 years; ejection fraction, mean +/- SD: 24% +/- 8%; dilative cardiomyopathy...

    journal_title：Journal of electrocardiology

    pub_type： 杂志文章

    doi：10.1016/j.jelectrocard.2009.12.006

    authors： Samol A,Klotz S,Stypmann J,Bruns HJ,Houben R,Paul M,Vahlhaus C

    更新日期：2010-05-01 00:00:00

  • Correlation between ECG presentation and cardiovascular magnetic resonance imaging in Takotsubo cardiomyopathy.

    abstract：:Takotsubo cardiomyopathy (TTC) is characterized by acute and reversible ventricular dysfunction in the absence of significant coronary artery disease, typically triggered by acute emotional or physical stress. In the acute phase of TTC, the electrocardiogram (ECG) shows ST-segment elevation, which rapidly evolves into...

    journal_title：Journal of electrocardiology

    pub_type： 杂志文章

    doi：10.1016/j.jelectrocard.2013.02.005

    authors： Zhong-qun Z,Chong-quan W,Nikus KC,Sclarovsky S

    更新日期：2013-07-01 00:00:00

  • Effect of electrolyte and pH changes on the sinus node pacemaking in humans.

    abstract：:The importance of plasma electrolytes and pH levels in determining heart rate is not yet well grounded. Hemodynamic and biochemical data were collected during 8 purely diffusive hemodialysis, which allowed changes in extracellular fluid to be achieved without eliciting notable changes in the autonomic control of heart...

    journal_title：Journal of electrocardiology

    pub_type： 杂志文章

    doi：10.1054/jelc.2002.31819

    authors： Severi S,Cavalcanti S,Mancini E,Santoro A

    更新日期：2002-04-01 00:00:00

  • Qualitative and quantitative evaluation of the exercise electrocardiogram in assessing the degree of coronary heart disease.

    abstract：:Exercise-induced changes in the ST segments of the electrocardiogram were compared with the results of coronary arteriography in 73 consecutive patients referred for preoperative evaluation of coronary artery disease. Eighteen patients had single-, 25 double-, and 30 triple-vessel disease. Thirteen were taking digital...

    journal_title：Journal of electrocardiology

    pub_type： 杂志文章

    doi：10.1016/s0022-0736(85)80035-2

    authors： Hajduczki I,Berenyi I,Enghoff E,Malmberg P,Erikson U

    更新日期：1985-01-01 00:00:00

  • Application of the Karhunen-Loeve expansion to evaluate regional cardiac excitation in body surface potential maps.

    abstract：:The authors investigated the usefulness of the Karhunen-Loeve technique applied to body surface maps to study regional cardiac excitation. Eigenvectors were derived from the body surface potential maps of 120 healthy adults using the Karhunen-Loeve expansion theory. Then, in the maps of various types of ventricular hy...

    journal_title：Journal of electrocardiology

    pub_type： 临床试验,杂志文章

    doi：10.1016/0022-0736(90)90148-u

    authors： Watabe S,Hayashi H,Yamada Y,Miyaji K,Yabe S,Sotobata I,Iwata A,Suzumura N

    更新日期：1990-01-01 00:00:00

  • Unplanned transfer from the telemetry unit to the intensive care unit in hospitalized patients with suspected acute coronary syndrome.

    abstract：BACKGROUND:Most patients presenting with suspected acute coronary syndrome (ACS) are admitted to telemetry units. While telemetry is an appropriate level of care, acute complications requiring a higher level of care in the intensive care unit (ICU) occur. PURPOSE:Among patients admitted to telemetry for suspected ACS,...

    journal_title：Journal of electrocardiology

    pub_type： 杂志文章

    doi：10.1016/j.jelectrocard.2016.08.010

    authors： Pelter MM,Loranger D,Kozik TM,Fidler R,Hu X,Carey MG

    更新日期：2016-01-01 00:00:00

  • Left ventricular electrical activation during right ventricular pacing in heart failure patients with LBBB: visualization by electrocardiographic imaging and implications for cardiac resynchronization therapy.

    abstract：OBJECTIVE:Assess effect of right ventricular pacing (RVP) on left ventricular (LV) activation in heart failure patients with left bundle branch block (LBBB). BACKGROUND:LV activation during RVP is regarded as similar to LBBB; hence novel CRT algorithms may avoid RVP by adopting "fusion" pacing with intrinsic RBB-media...

    journal_title：Journal of electrocardiology

    pub_type： 临床试验,杂志文章

    doi：10.1016/j.jelectrocard.2014.09.002

    authors： Varma N

    更新日期：2015-01-01 00:00:00

  • Signal-averaged body surface mapping for the assessment of low-amplitude potentials. Detailed maps during early ventricular activation in normal subjects.

    abstract：:Body surface isopotential maps around early ventricular activation were investigated in 30 normal subjects by the use of the authors' signal-averaged body surface mapping system. The number of beats averaged was 96-154 (mean, 127). Two distinct patterns were recognized in the appearance of a maximum at the onset of ve...

    journal_title：Journal of electrocardiology

    pub_type： 杂志文章

    doi：10.1016/0022-0736(91)90025-h

    authors： Kubota I,Shibata T,Hanashima K,Yamaki M,Ikeda K,Tsuiki K,Yasui S

    更新日期：1991-07-01 00:00:00

  • An unusual cause of heart failure in a young man.

    abstract：:A 21year old gentleman was admitted with shortness of breath and heart failure. He was noted to have incessant supraventricular tachycardia which was refractory to pharmacological and electrical cardioversion. Electrophysiology study revealed focal atrial tachycardia from an unusual location which was successfully abl...

    journal_title：Journal of electrocardiology

    pub_type： 杂志文章

    doi：10.1016/j.jelectrocard.2017.09.015

    authors： Nair KKM,Namboodiri N,Gopalakrishnan A,Abhilash SP,Valaparambil A

    更新日期：2018-01-01 00:00:00

  • Successful epicardial ablation for ventricular tachycardia originating from the true apex of apical aneurysm associated with hypertrophic cardiomyopathy.

    abstract：:Hypertrophic cardiomyopathy (HCM) with apical aneurysm (AA) is rare, but has been reported to be associated with refractory ventricular tachycardias (VTs). Majority of such cases had a central isthmus of the reentry circuit on the border zone of AA. In this report, we describe a rare case of the successful epicardial ...

    journal_title：Journal of electrocardiology

    pub_type： 杂志文章

    doi：10.1016/j.jelectrocard.2020.06.014

    authors： Nakao M,Watanabe M,Kamada R,Hagiwara H,Takahashi Y,Koya T,Kadosaka T,Koizumi T,Hirose M,Anzai T

    更新日期：2020-01-01 00:00:00

  • Atypical AV junctional reentrant tachycardia following AV nodal modification.

    abstract：:The authors present a patient who initially underwent anterior approach atrioventricular (AV) nodal modification for treatment of typical AV junctional reentrant tachycardia (AVJRT) and subsequently developed clinical episodes of a previously undocumented type of supraventricular tachycardia. Findings during electroph...

    journal_title：Journal of electrocardiology

    pub_type： 杂志文章

    doi：10.1016/s0022-0736(05)80113-x

    authors： Goldberger J,Ehlert F,Baerman J,Kadish A

    更新日期：1994-01-01 00:00:00

  • Exercise training slows down heart rate and improves deceleration and acceleration capacity in patients with heart failure.

    abstract：:Controlled physical training has been shown to be a valuable therapeutic addition to a pharmacological treatment in patients with chronic heart failure (CHF). It is speculated that repeated physical training can improve the autonomic modulation of the cardiovascular system in patients with CHF. The present study evalu...

    journal_title：Journal of electrocardiology

    pub_type： 杂志文章,随机对照试验

    doi：10.1016/j.jelectrocard.2012.01.002

    authors： Ricca-Mallada R,Migliaro ER,Piskorski J,Guzik P

    更新日期：2012-05-01 00:00:00

  • The electrical determinants of increased wall thickness and mass in left ventricular hypertrophy.

    abstract：INTRODUCTION:Left ventricular hypertrophy (LVH), defined as an increased left ventricular mass (LVM), can manifest as increased wall thickness, ventricular dilatation, or both. Existing LVH criteria from the electrocardiogram (ECG) have poor sensitivity. However, it is unknown whether changes in wall thickness and mass...

    journal_title：Journal of electrocardiology

    pub_type： 杂志文章

    doi：10.1016/j.jelectrocard.2019.09.024

    authors： Maanja M,Schlegel TT,Kozor R,Lundin M,Wieslander B,Wong TC,Schelbert EB,Ugander M

    更新日期：2020-01-01 00:00:00

  • P wave analysis with wavelets identifies hypertensive patients at risk of recurrence of atrial fibrillation: A case-control study and 1year follow-up.

    abstract：AIMS:Hypertension is a major risk factor for atrial fibrillation (AF); however, reliable non-invasive tools to assess AF risk in hypertensive patients are lacking. We sought to evaluate the efficacy of P wave wavelet analysis in predicting AF risk recurrence in a hypertensive cohort. METHODS:We studied 37 hypertensive...

    journal_title：Journal of electrocardiology

    pub_type： 杂志文章

    doi：10.1016/j.jelectrocard.2015.07.012

    authors： Dakos G,Konstantinou D,Chatzizisis YS,Chouvarda I,Filos D,Paraskevaidis S,Mantziari L,Maglaveras N,Karvounis H,Vassilikos V

    更新日期：2015-09-01 00:00:00

  • ECG markers of arrythmogenic risk relationships with pericardial fat volume and BMI in patients with coronary atherosclerosis.

    abstract：BACKGROUND:Several novel ECG markers are proposed to predict the risk of sudden cardiac death in several clinical conditions in the recent years. However, little is known about the association of pericardial fat or obesity with these markers. OBJECTIVES:To assess the possible relationship between pericardial fat volum...

    journal_title：Journal of electrocardiology

    pub_type： 杂志文章

    doi：10.1016/j.jelectrocard.2018.03.008

    authors： Al-Mosawi AA,Nafakhi H,Hassan MB,Alareedh M,Al-Nafakh HA

    更新日期：2018-01-01 00:00:00

  • What is ventricular fibrillation undersensing?

    abstract：:Ventricular fibrillation (VF), uninterrupted, is fatal within minutes. Implantable cardioverter defibrillators (ICDs) sense ventricular electrograms (EGMs) during VF and detect the VF rhythm (a sequence of VF sensed events) to deliver a shock to terminate VF and save lives. VF sensing and detection in Medtronic ICDs h...

    journal_title：Journal of electrocardiology

    pub_type： 杂志文章

    doi：10.1016/j.jelectrocard.2018.08.034

    authors： Brown ML

    更新日期：2018-01-01 00:00:00

  • Syncope in a patient with acute pulmonary embolism and Brugada Type-2 ECG pattern: Brugada phenocopy or Brugada syndrome?

    abstract：:Brugada phenocopies are clinical entities characterized by electrocardiographic patterns that are identical to true Brugada syndrome, but are elicited by a number of clinical circumstances. ECG normalizes upon resolution of underlying condition, family history of arrhythmic syncope or ventricular arrhythmias is strict...

    journal_title：Journal of electrocardiology

    pub_type： 杂志文章

    doi：10.1016/j.jelectrocard.2019.04.003

    authors： Lippolis A,Buzzi MP,Romano IJ,Facchini C,Gentile F

    更新日期：2019-01-01 00:00:00

  • Automatic detection of ECG cable interchange by analyzing both morphology and interlead relations.

    abstract：BACKGROUND:ECG cable interchange can generate erroneous diagnoses. For algorithms detecting ECG cable interchange, high specificity is required to maintain a low total false positive rate because the prevalence of interchange is low. In this study, we propose and evaluate an improved algorithm for automatic detection a...

    journal_title：Journal of electrocardiology

    pub_type： 杂志文章

    doi：10.1016/j.jelectrocard.2014.08.006

    authors： Han C,Gregg RE,Feild DQ,Babaeizadeh S

    更新日期：2014-11-01 00:00:00