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 Release 21.0, Jan 2008
 
Chapter : ch44. Pediatrics Section : Assessment of Neonatal Well-Being and Development
  Perinatal Risk Inventory

  Excel Sheet Reference
Copyright (c) 2006-2007, Institute for Algorithmic Medicine, Houston, TX, USA. All rights reserved.

Overview :

The Perinatal Risk Inventory can be used to identify infants who are at risk for significant developmental abnormalities. The study was done at the University of Massachusetts.

 

Parameters:

(1) Apgar score

(2) EEG

(3) seizures (nonmetabolic)

(4) intracranial hemorrhage

(5) hydrocephalus (evidence of increased pressure)

(6) CT or ultrasound without evidence of hydrocephalus or intracranial hemorrhage, but other CNS findings

(7) premature with weight > 3rd percentile (appropriate for gestational age); if score < 10th percentile, use item 8

(8) weight for gestational age (Dubowitz or estimated date of confinement)

(9) dysmorphic features

(10) ventilation

(11) head growth (premature infant hospitalized 6 weeks or more)

(12) head growth (term infant hospitalized > 3 weeks)

(13) polycythemia (venous hematocrit)

(14) meningitis

(15) hypoglycemia (regardless of gestational age, < 1.7 mmol/L [30 mg/dL] on heelstick)

(16) congenital infection

(17) hyperbilirubinemia

(18) associated non-CNS medical problems such as hydrops, retinopathy of prematurity (ROP), cyanotic heart disease, bronchopulmonary dysplasia (BPD), necrotizing enterocolitis

 

where:

• I think item 6 might be better termed: CNS findings other than hydrocephalus and intracranial hemorrhage.

• I am confused by some of the wording in items 7 and 8 but will assume that both can be scored although 7 would only be scored if premature

• items 11 and 12 (head growth): only 1 applies

 

Parameter

Finding

Points

Apgar score (see below)

no neurobehavioral abnormalities

0

 

hyperalert

1

 

mild hypotonia

2

 

severe hypotonia

3

EEG

EEG not performed

0

 

normal EEG

0

 

abnormal EEG but normal at discharge

1

 

abnormalities on EEG (not flat or periodic) with continued abnormalities at discharge

2

 

periodic or flat EEG with continued abnormalities at discharge

3

seizures (nonmetabolic)

no problem

0

 

suspected seizure; not treated with anticonvulsants

1

 

1 or more seizures with response to a single anticonvulsant

2

 

1 or more seizures with resistance to therapy requiring 2 or more anticonvulsants

3

intracranial hemorrhage

CT scan or ultrasound not performed

0

 

CT scan or ultrasound negative

0

 

subarachnoid hemorrhage with seizures

1

 

grade I intraventricular hemorrhage (IVH)

1

 

grade II intraventricular hemorrhage

1

 

grade III intraventricular hemorrhage

2

 

grade IV intraventricular hemorrhage

3

hydrocephalus

no evidence of hydrocephalus on ultrasound or CT scan

0

 

suspected on clinical basis; resolved without treatment

1

 

hydrocephalus confirmed on ultrasound or CT scan without shunt; treated medically or repeated intraventricular taps

2

 

hydrocephalus confirmed on ultrasound or CT scan with shunt required

3

CNS findings without hydrocephalus or intracranial hemorrhage

CT scan or ultrasound not done

0

 

CT scan or ultrasound negative

0

 

abnormal findings with return to normal prior to discharge

1

 

identified abnormalities not specified elsewhere without return to normal prior to discharge

2

 

loss of parenchyma, decreased mantle or other abnormalities which may result in parenchymal injury not specified elsewhere

3

premature with weight > 3rd percentile

> 32 weeks

0

 

32-30 weeks

1

 

29-27 weeks

2

 

26-24 weeks

3

weight for gestational age

weight appropriate for gestational age

0

 

< 10th percentile for weight but > 3rd percentile

1

 

< 3rd percentile for weight

2

 

< 3rd percentile for weight with a 2 or 3 in other categories of the perinatal index

3

dysmorphic features

none

0

 

1 minor dysmorphic feature

0

 

2 minor dysmorphic features

1

 

3 or more minor dysmorphic features

2

 

1 major feature, with normal chromosomes

2

 

chromosomal abnormalities or syndrome known to be associated with developmental disabilities such as Down's syndrome

3

 

fetal alcohol syndrome

3

ventilation

not ventilated

0

 

<= 7 days

1

 

8-21 days

2

 

> 21 days

3

 

clinical diagnosis of bronchopulmonary dysplasia with tachypnea

 

head growth (premature infant hospitalized 6 weeks or more)

head growth > 10% and < 90% for gestational age with 3.5 cm or greater growth in first 6 weeks

0

 

initial head circumference in the 5th-10th percentile with 3.5 cm or greater growth in the first 6 weeks

1

 

initial circumference > 3rd percentile with less than 3.5 cm growth in first 6 weeks

2

 

initial head circumference < 3rd percentile for gestational age with < 3.5 cm for first 6 weeks

3

head growth (term infant hospitalized > 3 weeks)

initial head circumference >= 10th percentile with average head growth >= 0.3 cm per week

0

 

initial head circumference >= 10th percentile with average head growth < 0.29 cm per week

1

 

initial head circumference below the 10th percentile with average head growth >= 0.3 cm per week

2

 

initial head circumference below the 10th percentile with average head growth < 0.29 cm per week

3

polycythemia

hematocrit <= 65%

0

 

hematocrit > 65% and < 70% without exchange transfusion

1

 

hematocrit > 65% without symptoms, with exchange transfusion

2

 

hematocrit > 65% requiring exchange transfusion because of hypoglycemia, lethargy, apnea or seizures

3

meningitis

none

0

 

suspected diagnosis on clinical or laboratory basis without bacterial or viral confirmation

1

 

confirmed diagnosis with or without seizures with adequate tone and state control within 24 hours

2

 

confirmed diagnosis with persistent hypotonia or obtunded state or seizures which persist for more than 72 hours

3

hypoglycemia

no hypoglycemia

0

 

hypoglycemia without symptoms, requiring oral feedings only

1

 

hypoglycemia with lethargy or hypotonia, requiring treatment with IV glucose

2

 

hypoglycemia with seizures, requiring treatment with IV glucose, glucagon or corticotropin

3

congenital infection

no suspicion of congenital infection

0

 

suspected but without viral or serologic confirmation

1

 

suspected, may include small for gestational age only, with viral or serologic confirmation

2

 

clearly identified diagnosis by culture or serology associated with signs and symptoms (i.e., jaundice, chorioretinitis, hepatosplenomegaly)

3

hyperbil