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2003-08-11-09 Supraventricular tachycardia © Serrano www.thefetus.net/

Supraventricular tachycardia

Meyer Serrano R, MD

Perinatology unit, Villavicencio, Meta, Colombia

 

A 27 year old patient, G4P1A2, at 34 gestational weeks referred for polyhydramnios, little ascites, hydrocele. Previous gestational diabetes controlled by diet.


The fetal heart examination show supraventricular tachycardia type atrial flutter with block 2:1 and hypoplasia of right ventricle, bilateral atrium dilatation and hyperechoic pulmonary valve. A pulmonary valve stenosis with intact ventricular septum was suspected and the diagnosis confirm by neonatal study. The neonate was taken to surgery for pulmonary valvotomy, but died during the postoperative course.

The large post-stenotic pulmonary artery
 

Normal situs

The atrial flutter

I

In the 4-chamber view, the right ventricle appears smaller

The distended atria

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