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Our aim was to assess the sensitivity/specificity of 2 indices of ischemia severity (Σ|ST| and STRMS) for 5 triplets of leads: X, Y, Z; V2, V5, aVF; V2, V5, III; V3, V5, III; and V3, V6, III, each derived from 7 subsets of Mason-Likar 12-lead ECG with limb leads and dual precordial leads (V1, V3; V1, V4; V1, V5; V2, V4; V2, V5; V3, V5; V3, V6). Coefficients for deriving lead triplets were developed...
A new method for myocardial ischemia detection is proposed in this communication. The originality of this method relies on the analysis of the dynamics of times series extracted from the ECG, whereas traditional methods are based on static decision rules. After the extraction of a feature vector, from ECG signals from the STAFF3 database, the dynamics are characterised with an Hidden Semi-Markovian...
Current electrocardiographic criteria for identifying patients with ST-segment elevation myocardial infarction (STEMI) perform with high specificity (SP), but low sensitivity (SE). Based on data acquired during balloon-inflation angioplasty, we found that the SE of ACC/ESC STEMI criteria can be improved without any loss of SP by considering ST elevation in 3 added pairs of contiguous leads (aVL, -III;...
Aims The diagnostic and prognostic capacity of biochemical markers of acute myocardial infarction in the emergency department were evaluated in consecutive patients (n=155) with suspected acute myocardial infarction.Methods and Results Serum myoglobin >=110μg.l -1 and creatine kinase MB mass >=5μg.l -1 had a high accuracy (0.77-0.85) (ns) for...
AimsSeveral studies have proved heparin useful in treating patients with unstable coronary artery disease. The present study investigates whether Selvester QRS scoring for estimation of myocardial infarct size increases the incidence of detection of acute myocardial infarction during follow-up in a trial of patients with unstable angina/non-Q wave myocardial infarction treated with low molecular weight...
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