Abstract:
:We report a case of ST segment elevation and PR depression in inferolateral leads in a patient with small bowel occlusion and gastric distension that disappeared immediately after gastric evacuation. Contrary to prior reports, we believe that these ECG changes do not represent an intrinsic cardiac electrical abnormality, but are likely artefactual. We hypothesise that the accumulated air between the heart, lower limbs and left precordial electrodes result in a significant departure from the simplified assumptions of standard 12 lead ECG analysis (that the electrical activity of the heart can be described by an electrical dipole at a fixed location in an electrical homogeneous sphere) in such a way that the ECG filtering process will not compensate for this bias and will artificially create the ECG pattern described in this report.
journal_name
J Electrocardioljournal_title
Journal of electrocardiologyauthors
Mărgulescu AD,Rees E,Richley D,Thomas DE,Smith Ddoi
10.1016/j.jelectrocard.2019.08.044subject
Has Abstractpub_date
2019-01-01 00:00:00pages
77-80eissn
0022-0736issn
1532-8430pii
S0022-0736(19)30536-9journal_volume
57pub_type
杂志文章abstract:AIMS:The objective of the study was to develop normal limits of the ECG in an apparently healthy population of South Asians living in India. METHODS:Three centres contributed to recording 12 lead ECGs on identical digital electrocardiographs. Apparently healthy volunteers were recruited and ECGs were first transferred...
journal_title:Journal of electrocardiology
pub_type: 杂志文章,多中心研究
doi:10.1016/j.jelectrocard.2015.04.013
更新日期:2015-07-01 00:00:00
abstract::The modified Sgarbossa criteria have been established to aid in the diagnosis of ST-elevation myocardial infarction in patients with left bundle branch block. Thus far, the sensitivities and specificities of the Sgarbossa signs have only been evaluated retrospectively in cohorts of patients with and without occlusive ...
journal_title:Journal of electrocardiology
pub_type: 杂志文章
doi:10.1016/j.jelectrocard.2020.09.011
更新日期:2020-01-01 00:00:00
abstract::To elucidate the electrocardiographic (ECG) characteristics of dilated cardiomyopathy (DCM), the authors analyzed the 12-lead ECGs and echocardiograms in 45 patients with DCM, 54 patients with left ventricular (LV) dilatation secondary to valvular heart disease (VHD), 101 hypertensive patients with LV hypertrophy, and...
journal_title:Journal of electrocardiology
pub_type: 杂志文章
doi:10.1016/s0022-0736(05)80270-5
更新日期:1994-10-01 00:00:00
abstract::Thoracic electromaps were recorded before and after sublingual nitroglycerin (NG) in 26 subjects 15 and 30 days after acute myocardial infarction (MI), in order to evaluate the effect of the drug on injury potentials. Ten patients with documented left ventricular aneurysm were also studied 5 to 46 months after acute M...
journal_title:Journal of electrocardiology
pub_type: 杂志文章
doi:10.1016/s0022-0736(81)81007-2
更新日期:1981-10-01 00:00:00
abstract::Brugada syndrome is characterized by J wave and ST-segment elevation of right precordial leads and causes idiopathic ventricular fibrillation. We experienced a patient of Brugada syndrome with prominent J wave and ST-segment elevation not only in V(1) to V(3) but also in many leads. He suffered spontaneous ventricular...
journal_title:Journal of electrocardiology
pub_type: 杂志文章
doi:10.1016/j.jelectrocard.2004.07.002
更新日期:2004-10-01 00:00:00
abstract::In a 66-year-old male with subacute extensive anterior wall myocardial infarction, we report a change in ST vector orientation from a basal anterior to a mid anterior after coronary artery recanalization of the proximal left anterior descending coronary artery with rotational atherectomy. The ST vector shift on the fr...
journal_title:Journal of electrocardiology
pub_type: 杂志文章
doi:10.1016/j.jelectrocard.2009.05.001
更新日期:2009-09-01 00:00:00
abstract::A case of concealed ventricular bigeminy is reported in which the number of sinus QRS complexes intervening between two successive noninterpolated extrasystoles was always uneven. Coupling intervals of manifest extrasystoles to the preceding sinus QRS complexes were almost fixed and much longer than sinus QT intervals...
journal_title:Journal of electrocardiology
pub_type: 杂志文章,评审
doi:10.1016/s0022-0736(96)80100-2
更新日期:1996-10-01 00:00:00
abstract::New developments in instrumentation, in clinical application, as well as in data analysis and visualization have provided new momentum to magnetocardiography (MCG). On one hand robust, easy to use and budget-priced MCG-systems entered the market and are applied to a multi-centred clinical study. On the other hand high...
journal_title:Journal of electrocardiology
pub_type: 杂志文章
doi:10.1016/j.jelectrocard.2004.08.035
更新日期:2004-01-01 00:00:00
abstract::Kornreich identified 6 body surface potential mapping (BSPM) leads outside the standard 12-lead electrocardiographic (ECG) sites for optimal recognition of ST segment elevation (+) and depression (-) during acute ischemia in anterior, inferior, and posterior myocardial zones (A+, A-, I+, I-, P+, P-). No comparison has...
journal_title:Journal of electrocardiology
pub_type: 杂志文章
doi:10.1016/s0022-0736(99)90032-8
更新日期:1999-01-01 00:00:00
abstract::In patients presenting with signs and symptoms of an acute coronary syndrome (ACS) the combination of multilead ST depression and ST elevation in lead aVR, the electrocardiographic "aVR sign," has been associated with severe left main coronary artery stenosis or diffuse coronary artery disease and a high risk of death...
journal_title:Journal of electrocardiology
pub_type: 杂志文章,评审
doi:10.1016/j.jelectrocard.2019.07.014
更新日期:2019-01-01 00:00:00
abstract::To assess the effect of pacing drive cycle length on induction of sustained monomorphic ventricular tachycardia, 40 patients were prospectively studied in the drug-free state. Ventricular extrastimuli were sequentially delivered at the same coupling interval at each of three drive cycle lengths (600, 500, and 400 ms) ...
journal_title:Journal of electrocardiology
pub_type: 杂志文章
doi:10.1016/0022-0736(92)90127-l
更新日期:1992-01-01 00:00:00
abstract::To investigate the effects of electrolytes on anterograde conduction via accessory pathways, 12 patients with Wolff-Parkinson-White syndrome received, while in sinus rhythm, intravenous KCl (7 mEq in 200 mL of 0.9% NaCl), MgSO4 (10 mL 20% in 200 mL of 0.9% NaCl), NaCl (0.9%, 200 mL), and procainamide (maximal dose, 10...
journal_title:Journal of electrocardiology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/s0022-0736(96)80106-3
更新日期:1996-01-01 00:00:00
abstract::Although solid angle analysis has been considered to be reasonable for explaining the distribution of ST segment deviation following ischemia, it has not been tested fully, especially for ST segment changes in various sites at different lead surfaces. Thus, we investigated the applicability of solid angle theory to th...
journal_title:Journal of electrocardiology
pub_type: 杂志文章
doi:10.1016/s0022-0736(86)80033-4
更新日期:1986-07-01 00:00:00
abstract::A 53-year-old woman with sinus node dysfunction underwent dual-chamber pacemaker implantation through a persistent left superior vena cava draining into the coronary sinus, which was detected at the time of implantation. We managed to fix the ventricular lead in the right ventricular (RV) apex by forming a clockwise l...
journal_title:Journal of electrocardiology
pub_type: 杂志文章
doi:10.1016/j.jelectrocard.2007.05.016
更新日期:2007-11-01 00:00:00
abstract::Previous studies indicate that the predictive value of atrial fibrillatory rate in patients undergoing cardioversion of atrial fibrillation (AF) of long duration is limited. The present study investigates signal entropy in this setting. Standard 12-lead electrocardiograms (ECGs) were recorded from 66 consecutive patie...
journal_title:Journal of electrocardiology
pub_type: 杂志文章
doi:10.1016/j.jelectrocard.2010.10.033
更新日期:2011-03-01 00:00:00
abstract::Frank vectorcardiograms (VCGs) were collected on magnetic tape for 666 normal newborn infants at 1, 6, 12, 24, 36, 48, 60, and 72 hours after birth and analyzed by computers. The final total included 1,337 VCGs for white babies and 413 for blacks. No previous report has been made for the normal neonate with such a lar...
journal_title:Journal of electrocardiology
pub_type: 杂志文章
doi:10.1016/s0022-0736(77)80027-7
更新日期:1977-01-01 00:00:00
abstract::Cardiac gap junctions are responsible for normal conduction properties of the ventricles. Alteration in gap junction distribution (remodeling) in ischemic heart disease is likely to be an important cause of life threatening ventricular arrhythmias. ...
journal_title:Journal of electrocardiology
pub_type: 杂志文章
doi:10.1054/jelc.2001.28834
更新日期:2001-01-01 00:00:00
abstract::Recent studies have reported the relation between Torsade de Pointes (TdP) and midmyocardial (M) cell function associated with long QT syndrome. To investigate this relation, we conducted a simulation study with a three-dimensional (3D) heart model incorporating M cells in the anterolateral areas of the model. Paramet...
journal_title:Journal of electrocardiology
pub_type: 杂志文章
doi:10.1016/s0022-0736(98)90308-9
更新日期:1998-01-01 00:00:00
abstract:BACKGROUND:Many variants of the spatial QRS-T angle (QRS-Ta) are in use. We aimed to identify the best QRS-Ta for all-cause mortality prediction among different variants. METHODS:6667 individuals from the Inter99 General Population Study were followed for a median of 12.7 years. Vectorcardiograms were calculated using...
journal_title:Journal of electrocardiology
pub_type: 杂志文章
doi:10.1016/j.jelectrocard.2018.05.011
更新日期:2018-01-01 00:00:00
abstract::Body surface potential mapping is superior to 12-lead electrocardiogram in detection of acute and old myocardial infarctions. We examined the capability of the ST-T integral and T wave to detect exercise-induced ischemia in body surface potential mapping. Body surface potential mapping with 123 channels was recorded i...
journal_title:Journal of electrocardiology
pub_type: 杂志文章
doi:10.1054/jelc.2003.50013
更新日期:2003-04-01 00:00:00
abstract:BACKGROUND:Differentiation of wide complex tachycardias (WCTs) into ventricular tachycardia (VT) or supraventricular wide complex tachycardia (SWCT) using conventional manually-operated electrocardiogram (ECG) interpretation methods is difficult. Recent research has shown that accurate WCT differentiation may be accomp...
journal_title:Journal of electrocardiology
pub_type: 杂志文章
doi:10.1016/j.jelectrocard.2020.05.004
更新日期:2020-01-01 00:00:00
abstract::The electrocardiogram (ECG) remains the most immediately accessible and widely used diagnostic tool for guiding emergency treatment strategies. The ECG recorded during acute myocardial ischemia is of diagnostic, therapeutic, and prognostic significance. In patients with myocardial ischemia as a result of decreased blo...
journal_title:Journal of electrocardiology
pub_type: 杂志文章,评审
doi:10.1016/j.jelectrocard.2009.07.009
更新日期:2010-03-01 00:00:00
abstract::Electrocardiographic manifestation mimicking the hyperacute phase of myocardial infarction and the electrical alternans of the elevated ST-segment in association with subarachnoid hemorrhage were reported in two patients with no evidence of heart disease. In both cases the ST-segment changes were transient and there w...
journal_title:Journal of electrocardiology
pub_type: 杂志文章
doi:10.1016/0022-0736(89)90082-4
更新日期:1989-04-01 00:00:00
abstract::Intracellular and extracellular recording techniques were used to study triggered activity in tissues isolated from the inferior right atrium of the dog. In the presence of norepinephrine (greater than 10(-7) M) single stimuli or short rapid pacing elicited action potentials with delayed after-depolarizations, leading...
journal_title:Journal of electrocardiology
pub_type: 杂志文章
doi:10.1016/0022-0736(87)90005-7
更新日期:1987-01-01 00:00:00
abstract:BACKGROUND:Our aim was to evaluate the intermittent use of a handheld ECG system for detecting silent arrhythmias and cardiac autonomic dysfunction in children with univentricular hearts. METHODS:Twenty-seven patients performed intermittent ECG recordings with handheld devices during a 14-day period. A manual arrhythm...
journal_title:Journal of electrocardiology
pub_type: 杂志文章
doi:10.1016/j.jelectrocard.2014.02.006
更新日期:2014-05-01 00:00:00
abstract::A His bundle electrogram was obtained in a 70 year old male with syncopal episodes. A split bundle of His deflection was recorded. After the intravenous administration of phentolamine, a marked shortening of the H-H' interval was observed. This signifies an improvement in conduction at the bundle of His level. ...
journal_title:Journal of electrocardiology
pub_type: 杂志文章
doi:10.1016/s0022-0736(78)80147-2
更新日期:1978-10-01 00:00:00
abstract:BACKGROUND:There is a controversy regarding the association between QRS width and ventricular arrhythmias (VAs). We hypothesized that predictive value of the QRS width could be improved if QRS width were considered in the context of the sum magnitude of the absolute QRST integral in 3 orthogonal leads sum absolute QRST...
journal_title:Journal of electrocardiology
pub_type: 杂志文章
doi:10.1016/j.jelectrocard.2010.07.013
更新日期:2010-11-01 00:00:00
abstract::We report a case of an outpatient cardiac arrest due to ventricular fibrillation and resuscitated with external automated defibrillator shocks in which acute amiodarone infusion unmasked a Brugada phenotype electrocardiographic pattern. Possible interferences by this drug and suitable therapeutic actions are discussed...
journal_title:Journal of electrocardiology
pub_type: 杂志文章
doi:10.1016/j.jelectrocard.2012.02.005
更新日期:2012-07-01 00:00:00
abstract::The case of a patient with complete atrioventricular block with capability of rapid ventriculoatrial conduction with unusual behavior is presented. Potential mechanisms are discussed. ...
journal_title:Journal of electrocardiology
pub_type: 杂志文章
doi:10.1016/j.jelectrocard.2012.03.005
更新日期:2012-07-01 00:00:00
abstract::We are reporting a series of 13 out of a total of 16 patients in whom sinus nodal activity was recorded with the use of intra-atrial electrodes, during diagnostic His-bundle electrocardiography investigations. The protocol consisted of the simultaneous monitoring of the following intra-atrial points: high right atrium...
journal_title:Journal of electrocardiology
pub_type: 杂志文章
doi:10.1016/s0022-0736(79)80002-3
更新日期:1979-10-01 00:00:00