torsades de pointes is a rare but potentially lethal arrhythmia which mainly occurs in the setting of a prolonged qt interval. ecg is a reliable tool to detect such abnormalities, routinely taken from all patients over 40 who undergo surgery. we describe the case of a 35-year-old woman with torsades de points arrhythmia after hysterectomy surgery. most likely, our patients had long qt syndrome ...

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...

BACKGROUND The 12-lead electrocardiogram (ECG) has relatively poor specificity for identifying acute pulmonary embolism (APE). The aim of this study was to investigate ECG abnormalities according to 2 different criteria and their usefulness for assessing changes in APE. METHODS AND RESULTS Fifty-two APE patients underwent ECG examinations in the acute and chronic phases. ECG abnormalities wer...

OBJECTIVE To identify intracardiac conduction abnormalities in patients with myotonic dystrophy from their clinical, ECG, and genetic features. METHODS 39 consecutive patients (mean (SD) age 42. 9 (12.1) years; 16 female, 23 male) underwent clinical examination, genetic studies, resting and 24 hour ambulatory ECG, signal averaged ECG, and electrophysiological studies. RESULTS 23 patients su...

BACKGROUND Familial amyloidotic polyneuropathy (FAP) is a rare disease diagnosed in Brazil and worldwide. The frequency of cardiovascular involvement in Brazilian FAP patients is unknown. OBJECTIVE Detect the frequency of cardiovascular involvement and correlate the cardiovascular findings with the modified polyneuropathy disability (PND) score. METHODS In a national reference center, 51 pa...

Background: Abnormal resting electrocardiogram (ECG) findings have been strongly associated with subsequent increase in all cause CAD and CVD mortality. The abnormalities are defined as either major or minor based on the different criteria. Minor and major abnormalities have been correlated with increasing risk for CAD events and mortality. Moderately elevated cholesterol levels found in the ma...

BACKGROUND & OBJECTIVES Morphological abnormalities in 12-lead electrocardiograms (ECGs) are seen in subgroups of healthy individuals like athletes and air-force personnel. As these populations may not truly represent healthy individuals, we assessed morphological abnormalities in ECG in healthy volunteers participating in phase I studies, who are screened to exclude associated conditions. ME...

BACKGROUND An electrocardiogram (ECG) can provide information on subclinical myocardial damage. The presence, and more importantly, the quantity of coronary artery calcification (CAC), relates well with the overall severity of the atherosclerotic process. A strong relation has been demonstrated between coronary calcium burden and the incidence of myocardial infarction, a relation independent of...

Background—The electrocardiogram (ECG) can be used to determine the presence of ischemic heart disease in a population at large. In addition, there is evidence that microalbuminuria increases cardiovascular risk in nondiabetic populations. Little is known about the precise relation between urinary albumin excretion (UAE) and cardiovascular disease. If UAE can be considered as a continuous varia...

Electrocardiogram (ECG) is the cheap and noninvasive method of depicting the heart activity and abnormalities. It provides information about the functionality of the heart. It is the record of variation of bioelectric potential with respect to time as the human heart beats. The classification of ECG signals is an important application since the early detection of heart diseases/abnormalities ca...