background: tricyclic antidepressants (tcas) poisoning is the most common poisoning in the poisoning emergency department of noor hospital, isfahan, iran. the objective of this study was to compare qrs interval duration with ravr³3mm and r/savr³ 0.7 in predicting: serious complications of acute tca toxicity. methods and materials: this study was descriptive – analytic and prospective cohort. tc...

Background: Tricyclic antidepressants (TCAS) Poisoning is the most common poisoning in the Poisoning Emergency Department of Noor Hospital, Isfahan, Iran. The objective of this study was to compare QRS interval duration with RaVR³3mm and R/SaVR³ 0.7 in predicting: serious complications of acute TCA toxicity. Methods and Materials: This study was descriptive – analytic and prospective cohort....

Background: The aim of this study was to evaluate and compare the clinical and ‎electrocardiographic (ECG) manifestations of benzodiazepines (BZs).‎ Methods: In this retrospective study, all BZ-poisoned patients hospitalized at Loghman ‎Hakim Hospital between September 2010 and March 2011 were evaluated. Patients’ ‎information including age, sex, time elapsed between the ingestion and presenta...

background: the aim of this study was to evaluate and compare the clinical and ‎electrocardiographic (ecg) manifestations of benzodiazepines (bzs).‎ methods: in this retrospective study, all bz-poisoned patients hospitalized at loghman ‎hakim hospital between september 2010 and march 2011 were evaluated. patients’ ‎information including age, sex, time elapsed between the ingestion and presentat...

OBJECTIVE The principal mechanism of cardiac toxicity of bupivacaine relates to the blockade of myocardial sodium channels, which leads to an increase in the QRS duration. Recently, experimental studies suggest that lipid emulsion is effective in reversing bupivacaine cardiac toxicity. We aimed to evaluate the temporal evolution of the QRS widening induced by bupivacaine with the administration...

BACKGROUND Certain types of the early repolarization phenomenon, previously considered to be benign, have been reported to be associated with ventricular fibrillation (VF), both in population-based studies and in the myocardial infarction (MI) settings. OBJECTIVE To analyze whether QRS widening and appearance of a J-wave pattern in experimental MI settings is predictive of VF. METHODS MI wa...

Background: Certain types of the early repolarization (ER) phenomenon, previously considered to be benign, have been reported to be associated with ventricular fibrillation (VF), both in population-based studies and in the myocardial infarction (MI) settings. Objective: Our aim was to analyse whether QRS widening and appearance of Jwave-pattern in experimental MI settings is predictive of VF. M...

An electrophysiologic procedure was performed in a 50-year-old man with a 20-year history of paroxysmal tachycardia. During sinus rhythm, the atrial-His (AH) interval was 70 msec, the His-ventricular (HV) interval was 45 msec, and the QRS width was 80 msec. During atrial pacing at a cycle length of 290 msec, there was widening of the QRS complex (Fig. 1). The transition from a narrow to wide QR...

INTRODUCTION Not only repolarization, but also depolarization ECG indexes reflect the progression of ischemic injury. The aim was to assess the QRS duration and morphology dynamics during the prolonged coronary occlusion and their association with the myocardial area at risk (MaR) and final infarct size (IS). METHODS In pigs, myocardial infarction was induced by inflation of an angioplasty ba...