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Junior SVT Score of Deutsch et al for Differentiating Orthodromic Atrioventricular Reentry Tachycardia (OAVRT) from Atrioventricular Nodal Reentry Tachycardia (AVNRT) in a Pediatric Patient with Narrow QRS Tachycardia

Description

Deutsch et al developed a score for differentiating Orthodromic Atrioventricular Reentry Tachycardia (OAVRT) from Atrioventricular Nodal Reentry Tachycardia (AVNRT) in pediatric patients with narrow QRS tachycardia. The authors are from multiple institutions in Poland.


Patient selection: pediatric patient with narrow QRS complex supraventricular tachycardia

 

Parameters:

(1) age in years

(2) heart rate in beats per minute

(3) retrograde P waves

(4) ST-segment depression

(5) pseudo r' wave in V1

 

Parameter

Finding

Points

age in years

< 11 years of age

2

 

>= 11 years of age

0

heart rate

160 to 230 bpm

1

 

< 160 or > 230 bpm

0

retrograde P waves

absent

0

 

present

3

ST-segment depression

absent

0

 

present

1

pseudo r' wave in V1

absent

0

 

present

-2

 

where:

• The original table says "r' wave in V1". The additon of pseudo r' is based on discussion at the top of the second column on page 3.

 

total score =

= SUM(points for all 5 parameters)

 

Interpretation:

• minimum score: -2

• maximum score: 7

• A score <= 1 is associated with AVNRT.

• A score >= 2 is associated with OAVRT


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