Abstract:
:The clinical value of QRST isointegral maps (I-maps) for the detection of myocardial infarction (MI) in the presence of left bundle branch block (LBBB) was investigated. We recorded I-maps during sinus rhythm and right ventricular (RV) pacing, which simulated LBBB, in 62 patients with MI (42 patients had at least one akinetic segment and the remaining 20 patients had only hypokinesis or normal contraction) and 26 patients without MI. An abnormal decrease in the QRST value of the I-map was assessed by the difference map (D-map), which indicated a '-2SD area', where the QRST integral value was less than the lower limit of the normal range (mean -2SD) calculated from 608 normal individuals. The I-maps recorded during the two activation sequences were similar to each other in patients with and without MI (r = 0.87 and 0.92, respectively). The '-2SD area' was located over the left anterior chest in patients with an anterior MI and over the lower torso in patients with an inferior MI during each activation sequence. We were able to diagnose MI during simulated LBBB with a sensitivity of 84%, a specificity of 81% and a diagnostic accuracy of 83% when we used the criterion that MI is present if the sum of QRST integral values below the normal range (sigma DM) exceeds 100 mV.ms. We were able to diagnose an akinesis with a sensitivity of 81%, a specificity of 85% and a diagnostic accuracy of 83% when we used the criterion that akinesis is present if sigma DM exceeds 500 mV.ms during simulated LBBB.(ABSTRACT TRUNCATED AT 250 WORDS)
journal_name
Eur Heart Jjournal_title
European heart journalauthors
Suzuki A,Hirai M,Hayashi H,Tomita Y,Ichihara Y,Adachi M,Oguchi S,Takatsu Fdoi
10.1093/eurheartj/14.8.1094subject
Has Abstractpub_date
1993-08-01 00:00:00pages
1094-101issue
8eissn
0195-668Xissn
1522-9645journal_volume
14pub_type
杂志文章abstract::A 55-year-old woman presented with fever and malaise. Three blood cultures were positive for Streptococcus sanguis. A diagnosis of endocarditis was made and the patient was treated with intravenous penicillin and gentamicin. Endocardiography revealed a large left atrial tumour. At operation a myxoma covered by deposit...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/oxfordjournals.eurheartj.a060109
更新日期:1992-11-01 00:00:00
abstract:AIMS:Atrial fibrillation (AF) is associated with abnormal sarcoplasmic reticulum (SR) calcium release, which is promoted by adenosine A(2A) receptor (A(2A)R) activation. Here, we tested the hypothesis that abnormal calcium release in AF is linked to A(2A)R remodelling. METHODS AND RESULTS:Western blotting and quantita...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/ehq464
更新日期:2011-03-01 00:00:00
abstract::Twelve patients with the long QT syndrome were studied to determine the usefulness of 123I-metaiodobenzylguanidine (MIBG) single-photon emission tomography (SPECT) at 2 h and 6 h after injection; the results were compared to 10 healthy volunteers (controls). Uptake of MIBG in the left ventricle at 2 h after injection ...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/14.3.316
更新日期:1993-03-01 00:00:00
abstract::Arbutamine (Gensia, Inc., San Diego, CA) is a newly-developed sympathomimetic agent specifically designed for cardiovascular stress testing. It has been successfully used for the detection of coronary artery disease in conjunction with electrocardiography, echocardiographic and radionuclide techniques. Arbutamine incr...
journal_title:European heart journal
pub_type: 杂志文章,评审
doi:10.1093/eurheartj/16.suppl_m.24
更新日期:1995-11-01 00:00:00
abstract::To examine whether increases in heart rate might be a common trigger of angina at rest, changes in heart rate, blood pressure and rate-pressure product during pain were compared with the ischaemic threshold (heart rate with ST segment shift > = 1 mm), determined by atrial pacing, in 272 patients with unstable angina. ...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/14.9.1170
更新日期:1993-09-01 00:00:00
abstract:AIMS:To assess the diagnostic accuracy of 256-row computed tomographic angiography (CTA) in patients with suspected coronary artery disease (CAD). Non-invasive imaging of the coronary artery by CTA has increasingly been used in recent years. The accuracy of 256-row CTA has not yet been studied. We sought to assess the ...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/ehq072
更新日期:2010-08-01 00:00:00
abstract:AIMS:The aim of this study was to evaluate (1) homocysteinemia and the prevalence of the C677T MTHFR polymorphism in Marfan patients and (2) whether the severity of cardiovascular manifestations is associated with homocysteinemia and/or C677T polymorphism. METHODS AND RESULTS:We studied 107 patients subdivided into th...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1016/j.ehj.2003.08.020
更新日期:2003-11-01 00:00:00
abstract:Aims:To characterize the relationship between blood pressure (BP) or heart rate and mortality and morbidity in chronic obstructive pulmonary disease (COPD). Methods and results:We performed post hoc analysis of baseline BP or heart rate and all-cause mortality and cardiovascular events in the SUMMIT trial. SUMMIT was ...
journal_title:European heart journal
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1093/eurheartj/ehy451
更新日期:2018-09-01 00:00:00
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journal_title:European heart journal
pub_type: 杂志文章,多中心研究
doi:10.1093/eurheartj/ehr360
更新日期:2011-12-01 00:00:00
abstract::In the adult cardiac myocyte the functional and structural integrity of the sarcolemma depends on the presence of calcium ions in the extracellular fluid. Ultrastructural damage to the myocardial cell after Ca is repleted following brief periods of Ca depletion includes (1) sarcolemmal disruption, (2) mitochondrial da...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/4.suppl_h.23
更新日期:1983-12-01 00:00:00
abstract::In a study of the concept of pacemaker dependence, 86 patients who had permanent ventricular demand (VVI) pacemakers implanted for more than six months and were in predominantly paced rhythm underwent repeated interruption of pacing both abruptly and after gradual reduction of paced rate. Non-invasive pace slowing was...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/oxfordjournals.eurheartj.a061777
更新日期:1985-10-01 00:00:00
abstract::Eight young healthy male subjects, members of a Himalayan expedition, underwent 24 h Holter monitoring before departure, after 1 and 4 weeks at high altitude (5000 m) and after return to sea level. At high altitude, the circadian reciprocal changes in low and high frequency (LF, HF) were absent, with no significant re...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/oxfordjournals.eurheartj.a060415
更新日期:1994-11-01 00:00:00
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journal_title:European heart journal
pub_type: 杂志文章
doi:
更新日期:1998-11-01 00:00:00
abstract::Supraventricular tachycardia is due to altered automaticity, triggered activity or most commonly, reentry. Atrial flutter is most frequently due to reentry with counterclockwise activation in the right atrium with the left atrium acting as a bystander. The small wavefronts demonstrated during atrial fibrillation are l...
journal_title:European heart journal
pub_type: 杂志文章,评审
doi:10.1093/eurheartj/14.suppl_e.2
更新日期:1993-09-01 00:00:00
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journal_title:European heart journal
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1093/eurheartj/11.suppl_f.5
更新日期:1990-08-01 00:00:00
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journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/oxfordjournals.eurheartj.a059557
更新日期:1989-08-01 00:00:00
abstract::Chronic total occlusions (CTOs) are a subset of lesions that present a considerable burden to cardiovascular patients. There exists a strong clinical desire to improve non-surgical options for CTO revascularization. While several techniques, devices, and guide wires have been developed and refined for use in CTOs, the...
journal_title:European heart journal
pub_type: 杂志文章,评审
doi:10.1093/eurheartj/ehm634
更新日期:2008-03-01 00:00:00
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journal_title:European heart journal
pub_type: 杂志文章
doi:10.1016/j.ehj.2004.05.003
更新日期:2004-07-01 00:00:00
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journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/ehs397
更新日期:2013-05-01 00:00:00
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journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/oxfordjournals.eurheartj.a059450
更新日期:1989-02-01 00:00:00
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pub_type: 杂志文章,评审
doi:10.1093/eurheartj/5.suppl_a.33
更新日期:1984-03-01 00:00:00
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journal_title:European heart journal
pub_type: 杂志文章,meta分析,评审
doi:10.1093/eurheartj/ehm116
更新日期:2007-09-01 00:00:00
abstract:AIMS:Recent randomized clinical trials have reported a reduction in restenosis with intracoronary stents and have suggested that this restenosis reduction is a result of the higher immediate luminal gain, in comparison to conventional percutaneous transluminal coronary angioplasty (PTCA). The hypothesis of this study i...
journal_title:European heart journal
pub_type: 临床试验,杂志文章
doi:10.1053/euhj.1997.0614
更新日期:1998-02-01 00:00:00
abstract::This report describes a patient with left atrial ball thrombus which was detected during echocardiographic evaluation of combined mitral-aortic valve disease. Surgical correction was performed entirely on the basis of the echocardiographic diagnosis. ...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/oxfordjournals.eurheartj.a060161
更新日期:1992-02-01 00:00:00
abstract:AIM:To examine the association of left ventricular hypertrophy (LVH) on admission electrocardiography with adverse outcomes in acute coronary syndrome (ACS) patients. METHODS AND RESULTS:A total of 7443 non-ST-elevation ACS patients in Global Utilization of STrategies to Open occluded arteries (GUSTO) IV ACS trial had...
journal_title:European heart journal
pub_type: 杂志文章,随机对照试验
doi:10.1093/eurheartj/ehm223
更新日期:2007-09-01 00:00:00
abstract::Forty-nine patients admitted for assessment of chest pain underwent coronary angiography, planar Thallium 201 myocardial scintigraphy after submaximal exercise (TE) and transoesophageal atrial pacing (TAP). Early hypofixation with redistribution after 4 h indicated ischaemia. The criterion for a myocardial infarction ...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/oxfordjournals.eurheartj.a060259
更新日期:1992-06-01 00:00:00
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journal_title:European heart journal
pub_type: 杂志文章
doi:10.1053/euhj.2002.3192
更新日期:2002-09-01 00:00:00
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journal_title:European heart journal
pub_type: 杂志文章,随机对照试验
doi:10.1093/eurheartj/ehx099
更新日期:2017-04-14 00:00:00
abstract::Echocardiographic parameters of left ventricular (LV) function were compared with the electrocardiographic findings in 40 patients with chronic severe aortic regurgitation. Total 12-lead QRS amplitude was linearly correlated with LV mass and its 'relative reduction' (less than 250 mm) indicated LV hypertrophy. Patient...
journal_title:European heart journal
pub_type: 杂志文章
doi:
更新日期:1988-01-01 00:00:00
abstract:AIM:Previous studies have reported lifestyle and risk factor deterioration following completion of a cardiac rehabilitation program (CRP). We report the results of a one-year Extensive Lifestyle Management Intervention (ELMI) aimed at preventing these adverse changes. METHODS AND RESULTS:A total of 302 men and women w...
journal_title:European heart journal
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1016/j.ehj.2003.08.015
更新日期:2003-11-01 00:00:00