| 
  • If you are citizen of an European Union member nation, you may not use this service unless you are at least 16 years old.

  • Stop wasting time looking for files and revisions. Connect your Gmail, DriveDropbox, and Slack accounts and in less than 2 minutes, Dokkio will automatically organize all your file attachments. Learn more and claim your free account.

View
 

Torsades de Pointes

Page history last edited by PBworks 11 years, 10 months ago

 

Torsade de Pointes

 

 

Description:

 

Torsades de pointes is a polymorphic ventricular tachycardia that differs from general ventricular tachycardia in both appearance and cause. The phrase “torsades de pointes” means “twisting on a point” which explains the action of the QRS complex and how it varies from beat to beat. Each QRS complex is wide and changes in size with each beat. The QT interval is increased to 600 milliseconds or more. Torsades can occur as both a perfusing or non-perfusing rhythm. It is a shockable rhythm.

 

 

 

If possible, check in between bursts of this rhythm to assess for a prolonged QT interval. For perfusing rhythms, the heart rate is generally between 165 – 300 beats per minute. The R to R interval varies in an irregularly irregular pattern.

 

 

 

 

 

 

 

 

Etiologies:

 

Medication (mainly antidysrhthmics)

Electrolyte imbalance

Family history

 

 

 

Treatment:

1-2 grams of magnesium sulfate placed in 100mL of D5W and administered over 1-2 minutes. This can be repeated every 4 hours.  Amiodarone has sometimes proven effective in the treatment of torsades but overall, antidysrhythmics usually produce disastrous consequences with this rhythm.

 

 

 

 

Comments (0)

You don't have permission to comment on this page.