[Pause-dependent Torsade de Pointes following acute myocardial infarction].
نویسندگان
چکیده
The authors report an early occurrence (within 48 hours) of the newly described form of pause-dependent torsade de pointes following acute myocardial infarction. QT prolongtion after myocardial infarction a common ECG finding. Postextrasystolic QT prolongation rare but one of the warning signs for torsade de pointes ventricular tachycardia following myocardial infarction. Careful monitoring is suggested in these cases.
منابع مشابه
Prevention of torsade de pointes in the congenital long QT syndrome: use of a pause prevention pacing algorithm.
Torsade de pointes in the congenital long QT syndrome (LQTS) is often pause dependent. Thus, the main goal of pacemaker treatment in the LQTS may be the prevention of pauses that facilitate the onset of torsade de pointes. A pause prevention pacing algorithm (rate smoothing) was used for arrhythmia prevention in a 14 year old girl with congenital LQTS. By temporarily increasing the pacing rate ...
متن کاملArrhythmias in the congenital long QT syndrome: how often is torsade de pointes pause dependent?
OBJECTIVE To determine the frequency and predictors of pause dependent torsade de pointes among patients with the congenital long QT syndrome and spontaneous ventricular tachyarrhythmias. DESIGN The literature on the "congenital long QT" was reviewed. Articles with illustrations demonstrating the onset of spontaneous polymorphic ventricular arrhythmias in the absence of arrhythmogenic drugs w...
متن کاملAtrioventricular block and pause-dependent torsade de pointes
Introduction Determining the level of atrioventricular [AV] block noninvasively can be challenging (ie, AV nodal versus His-Purkinje system). Presyncope or syncope in the setting of AV block is often assumed to be due to progression of the conduction disease. We describe a woman with second-degree AV block with narrow complex QRS with unclear level of AV block. She developed pause-dependent tor...
متن کاملA practical approach to torsade de pointes.
The term torsade de pointes refers to polymorphic ventricular tachycardia that occurs in the setting of an abnormally long QT interval. While the most common cause is treatment with QT prolonging drugs, torsade de pointes also occurs in the congenital long QT syndromes and in the setting of acquired heart block or severe electrolyte disturbance, notably hypokalemia. Among QT prolonging drugs th...
متن کاملRate smoothing with cardiac pacing for preventing torsade de pointes.
Cardiac pacing remains one of the most effective means for preventing torsade de pointes in patients with long QT syndrome (LQTS). However, fatal arrhythmias may occur despite combined therapy with beta blockers and pacing, and it is possible that failure of cardiac pacing for preventing arrhythmias in the long run is related (at least in part) to suboptimal pacemaker programming. Preventing su...
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ورودعنوان ژورنال:
- Journal of the American College of Cardiology
دوره 38 4 شماره
صفحات -
تاریخ انتشار 2001