Sinus versus nonsinus tachycardia in the emergency department: Importance of age and heart rate

Emergency diagnosis and management of common pediatric tachyarrhythmia

Tachycardia is common in the pediatric age group. The most commonly seen arrhythmias in children are sinus tachycardia. However, supraventricular tachycardia is the most common tachyarrhythmia that necessitates treatment. Ventricular tachycardia is rare in healthy children but may be associated with sudden cardiac death.  The important risk factors that predispose children for arrhythmias inclu...

The Study of Electrocardiographic Findings in Patients with Organophosphate Poisoning

Background: Cardiac manifestations that occur in a majority of patients with organophosphate (OP) poisoning may range from innocuous electrocardiographic manifestations, such as sinus tachycardia, to life-threatening complications, including cardiogenic pulmonary edema and myocardial necrosis. In this study, we evaluated the various electrocardiographic manifestations in patients with OP pois...

Card iac Arrhythm ias du ri ng Theophylli ne Toxicity

To examine the effects of theophylline toxicity on cardiac rhythm, patients underwent continuous ambulatory ECG recording during acute theophyllme toxicity and recovery. The patients, who were recruited from inpatient wards, intensive care units, and emergency departments of a University Medical Center and a Veterans Administration Medical Center, had serum theophylline concentrations (STC) gre...

  Background & Objective : Heart failure is a clinical syndrome and increases in rate by aging. Because changes in ECG and electrolytes are variable, specific and sometimes independent to the disease with different methods to be diagnosed, in this study we tried to find a way to diagnose them.   Materials & Methods: This is a retrospective descriptive-analytic study. Data was collected from dec...

The prevalence of irregularity in rhythm and heart sound in apparently healthy small ruminants

This study was conducted on 384 clinically healthy sheep and goats from farms around Tehran suburb. The animals were divided into two equal groups (according to species) and then assigned into three age groups, two gender groups and female animals into two groups: late pregnant and non-pregnant. Heart sounds were auscultated by two cardiologists and heart rate and probable murmurs were recorded...