The electrocardiograms were compared in two groups of schizophrenic patients (Experimental group N=43, Control group N=60). The selected cases were given 4 mg of Trifluoperazine daily by IM route for five days. A 12 lead ECG was taken thrice in each case. A statistical analysis of the data showed definite changes in many of the ECG variables. Comparatively more changes were noticed in the exper...

objective: this study aimed to determine the association of cardiac risk factors and the risk of acute myocardial infarction (ami) in emergency department (ed) patients with non-diagnostic ecg changes. methods: this cross-sectional study was conducted in the ed of imam hossein hospital during a period of one year. in this study, patients with symptoms suggestive of ami including chest pain, dys...

Electrocardiogram (ECG) impressions represent a wealth of medical information for potential decision support and drug-effect discovery. Much of this information is inaccessible to automated methods in the free-text portion of the ECG report. We studied the application of the KnowledgeMap concept identifier (KMCI) to map Unified Medical Language System (UMLS) concepts from ECG impressions. ECGs ...

Ventricular paced rhythms can mask ECG changes of several conditions. This is because the paced ventricular rhythm does not follow the normal pattern of depolarization through the bundle of His and the bundle branches. Instead, depolarization initially occurs at the tip of the pacemaker lead which is usually at the apex or the septum. The depolarization then proceeds through the myocardium from...

It is known that oesophageal pain can imitate angina and also that non specific ECG changes, probably catecholamine mediated, can be similar to those due to true myocardial ischaemia. Both of these can therefore pose a problem for the diagnosis of angina pain due to cardiac ischaemia. We report a patient who had both of these conditions simultaneously, pain on exertion appearing as angina but d...

Background and Objectives: Neural blockade techniques are associated with a risk of acute cardiac toxicity after accidental intravenous (IV) injection of local anesthetics (LAs). The aim of this study was to compare electrocardiographic (ECG) and hemodynamic (HEM) effects induced by IV infusion of LAs in an anesthetized ewe model. Methods: Thirty-two anesthetized ewes received IV bupivacaine (B...

BACKGROUND The classic increase in P wave size, known as 'P-atriale', is a widely accepted criterion for determination of proper positioning of central venous catheter tips. Recent transoesophageal echocardiography (TOE) studies did not confirm intra-atrial position despite advancing the central venous catheter further than indicated by ECG guidance. We postulate that the pericardial reflection...

Electrocardiography results were used to assess diagnosis and evolution of arrhythmogenic right ventricular disease. The initial ECG presentation and long-term changes were analysed in 74 consecutive patients with symptomatic ventricular tachycardia and arrhythmogenic right ventricular disease. On first available tracings, a left axis deviation of the QRS was found in 18 patients. The QRS lengt...

Takotsubo cardiomyopathy (TCM) is a unique cardiomyopathy characterized by chest pain, ECG, and regional wall motion abnormalities closely mimicking acute myocardial infarction, in the absence of significant coronary artery disease. Classic ECG changes of TCM include ST elevation or T wave inversion. However, ECG abnormalities of TCM in patients with paced ventricular rhythms have not been well...

Noise reduction in ECG signal is an important task of biomedical science.Adaptive filtering algorithms are evolving rapidly in biomedical science to remove the noise by an appreciable amount.In this paper, noise of ECG signal has been reduced by using adaptive filter based on RLS algorithm.The RLS algorithm performs well irrespective of the nature of signal and noise and its convergence rate is...