Posted by: Johnson Francis on: 09 Jan, 2010
Neonatal atrial flutter Often detected as “fetal distress” and can lead to unnecessary termination of labour. Atrial rate is often in the range of 400. Ventricular rates are in the range of 230. Fastest ventricular conduction in one series was 333. Median time of resolution is 5 days. Most often digoxin is used in the [...]
Posted by: Johnson Francis on: 21 Aug, 2009
Click on the images for a larger view Multifocal atrial tachycardia is defined as three or more different types of P waves occuring at a rate more than 100 per minute. In the second rhythm strip there is a pause before the onset of sinus rhythm after the tachycardia terminates. This could be due to down regulation [...]
Posted by: Johnson Francis on: 18 Nov, 2008
What causes cardiac arrhythmia? Myocardial factors like ischemia, infarction and myocarditis Autonomic imbalance like sypmathetic and parasympathetic overactivity or underactivity Electrolyte imbalance like hypokalemia and hypomagnesemia Hypoxia Drugs like antiarrhythmic agents and psychotropic agents Genetic disorders – Channelopathies like Brugada syndrome, long QT syndrome and short QT syndrome Common supraventricular tachyarrhythmias Atrial fibrillation Atrial flutter [...]
