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. Author manuscript; available in PMC: 2015 May 15.
Published in final edited form as: Drugs. 2012 May 7;72(7):907–916. doi: 10.2165/11632870-000000000-00000

Table 1.

Cardiovascular Distress Score (CVD) in Premature Infants with PDA [38]

Parameter SCORE
0 1 2
Heart rate (bpm) <160 160-180 >180
Heart murmur None Systolic murmur Murmur continues to diastole
Peripheral pulse Normal Bounding brachial Bounding brachial and dorsal
pedis
Precordial pulsation None Palpable Visible
Cardiothoracic
ratio
<0.60 0.60-0.65 >0.65