Atrial tachycardia with block treated with digitalis.

Effects of lignocaine on bidirectional tachycardia and on digitalis-induced atrial tachycardia with block.

Most recent studies discussing tachycardias with alternating QRS polarity have referred to those known as torsade de pointes. This report, in contrast, deals with bidirectional tachycardia and the effects of lignocaine on 10 patients with this arrhythmia. Three of the patients also had digitalis-induced atrial tachycardia with block. In one patient, a single bolus of lignocaine was followed (fi...

Digitalis and atrial tachycardia with block.

Atrial tachycardia with block is usually considered to be caused by digitalis intoxication. We have reviewed 44 episodes in 3I patients seen during the past three years. None of the patients fulfilled Lown's criteria for considering digitalis to be the common aetiological factor in atrial tachycardia with block. In our patients the concentration of serum digitoxin was between i5 and 25 nglml in...

Digitalis induced paroxysmal atrial tachycardia with AV block.

CLINICAL PROGRESS Paroxysmal Atrial Tachycardia with Block

THE digitalis drugs can produce nearly everv form of disturbed heart rhythmi. Thus far elinical attention has been directed to the venitricular effects. Digitalis-induced ventricular arrhythmias are therefore clearly catalogued and are recognized as of potentially grave signifieance. Recent studies indicate that certaiin atrial disorders are also imaniifestations of serious digitalis poisoning....

[Paroxysmal atrial tachycardia with atrio-ventricular block].

PAROXYSMAL atrial tachyeardia with atrioventricular block (PAT with block) has been recognized more often in recent years since Lown and Levine clarified its diagnostic criteria and emphasized its important relation to digitalis excess.1' 2 The present report was prompted by the increasing frequency with which this diagnosis has been made at our hospital and its common association with chronic ...