Maternal cardioversion: fetal effect

 Maternal cardioversion: fetal effect

Pretest

Best Answer

Question 1:

The treatment least likely to adversely affect  the fetus during therapy for supraventricular tachycardia in the mother during pregnancy:

A.    DC cardioversion.

B.     atrial overdrive pacing

C.     transesophageal pacing

D.    Adenosine

 

Question 2:

 

Non-pharmacological treatment of supraventricular tachycardia include

A.     vagal manoeuvres  

B.     DC cardioversion

C.     atrial overdrive pacing

D.    Any of the above.

 

Keyword

Maternal cardioversion: fetal effect

 

http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TBS-4C4W8MS-1&_user=10&_coverDate=05%2F31%2F2004&_rdoc=1&_fmt=&_orig=search&_sort=d&view=c&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=494461da93961b142f739b66d691a1d2

 

However, transient fetal dysrhythmia has been described, and monitoring of fetal heart rate during maternal cardioversion is advisable.

 

Non-pharmacological treatment including vagal manoeuvres such as carotid massage, Valsalva manoeuvre and facial ice immersion are well tolerated and aid in diagnosis.

 

Adenosine, a naturally occurring purine nucleotide, transiently depresses sinus node activity and slows atrioventricular conduction, and is effective in terminating supraventricular tachycardia.

 

It is rapidly metabolized with an elimination half-life of less than 10 s, making it ideally suitable for use in pregnancy.

 

http://bja.oxfordjournals.org/cgi/content/full/92/1/140

 

 

Answers

Question 1:

D. Adenosine. It is rapidly metabolized with an elimination half-life of less than 10 s, making it ideally suitable for use in pregnancy.

 

 Question 2:

 

Non-pharmacological treatment of supraventricular tachycardia include

A.vagal manoeuvres  

B.DC cardioversion

C.atrial overdrive pacing

D.         Any of the above. 

 

Answer

Question 2:

D. Non-pharmacological treatment including vagal manoeuvres such as carotid massage, Valsalva manoeuvre and facial ice immersion are well tolerated and aid in diagnosis.