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Anemia of Prematurity - Portal Neonatal

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• The use <strong>of</strong> other pharmacological modalities to prevent PVH-IVH has been proposed;<br />

however, this use is not widely accepted. The other pharmacological modalities include<br />

prenatal treatment with vitamin K and phenobarbital and postnatal treatment with<br />

Ethamsylate, phenobarbital, and vitamin E. Although positive reports concerning the efficacy<br />

<strong>of</strong> these agents exist, further investigation is required to prove conclusive evidence <strong>of</strong> benefit.<br />

Complications:<br />

• Obstructive hydrocephalus<br />

• Nonobstructive hydrocephalus<br />

• Developmental impairment<br />

• Cerebral palsy<br />

• Seizures<br />

Prognosis:<br />

• Grade I and grade II hemorrhage: Neurodevelopmental prognosis is excellent (ie, perhaps<br />

slightly worse than infants <strong>of</strong> similar gestational ages without PVH-IVH).<br />

• Grade III hemorrhage without white matter disease: Mortality is less than 10%. Of these<br />

patients, 30-40% have subsequent cognitive or motor disorders.<br />

• Grade IV (severe PVH-IVH) IVH with either periventricular hemorrhagic infarction and/or<br />

periventricular leukomalacia: Mortality approaches 80%. A 90% incidence <strong>of</strong> severe<br />

neurological sequelae including cognitive and motor disturbances exists.<br />

Patient Education:<br />

• Prenatal<br />

o Specific risks <strong>of</strong> gestational age<br />

o Sequelae<br />

• Postnatal<br />

o Provide postnatal education (if not provided previously) or reinforce prenatal education.<br />

o Provide results <strong>of</strong> sonography and expectations for short-term and long-term care.<br />

MISCELLANEOUS Section 9 <strong>of</strong> 11<br />

Medical/Legal Pitfalls: Use <strong>of</strong> indomethacin<br />

o According to randomized controlled trials, the use <strong>of</strong> indomethacin appears to be effective<br />

in the prevention <strong>of</strong> PVH-IVH. However, this therapy is not accepted universally because<br />

<strong>of</strong> potential complications <strong>of</strong> treatment. Whether or not failure to use indomethacin (or the<br />

use <strong>of</strong> the drug with subsequent complications) could result in civil liability is not clear.<br />

o Additionally, in order to be effective, indomethacin must be administered within hours <strong>of</strong><br />

birth. The number <strong>of</strong> at-risk premature patients who could conceivably receive the drug is<br />

large. Obtaining a pre-indomethacin echocardiogram to rule out an underlying cardiac<br />

condition in which patency <strong>of</strong> the ductus arteriosus is essential may be considered<br />

impractical and not cost effective. Whether or not legal risk is associated with the failure to<br />

diagnose a ductal-dependent lesion prior to administering indomethacin is not clear.<br />

Special Concerns: In patients with posthemorrhagic ventricular dilation that regresses, provide close<br />

follow-up care because hydrocephalus can recur.

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