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Omphalitis of the newborn - Skin
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Omphalitis of the newborn - Skin

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Contributors: Craig N. Burkhart MD, Dean Morrell MD, Lowell A. Goldsmith MD, MPH, Nancy Esterly MD
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Synopsis

Omphalitis is a polymicrobial infection of the umbilical stump. The mean age of onset is 5-9 days in full-term infants and 3-5 days in preterm infants. It is typically caused by a mix of aerobic and anaerobic organisms. The most common identified organisms include Staphylococcus aureus, group A Streptococcus, Escherichia coli, Klebsiella pneumoniae, and Proteus mirabilis. Risk factors for omphalitis include prior umbilical instrumentation, low birth weight, septic delivery, and prolonged rupture of membranes. Omphalitis occasionally develops in infants with an underlying immunodeficiency.

Codes

ICD10CM:
P38.9 – Omphalitis without hemorrhage

SNOMEDCT:
42052009 – Omphalitis of the newborn

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Diagnostic Pearls

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Differential Diagnosis & Pitfalls

Delayed separation of the umbilical cord, neutropenia, patent urachus, or an immunologic problem such as leukocyte adhesion deficiency or neonatal alloimmune neutropenia.

Best Tests

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Management Pearls

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Therapy

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References

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Last Updated: 06/21/2017
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Omphalitis of the newborn - Skin
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Omphalitis of the newborn : Fever, Tender skin lesion, Umbilicus
Clinical image of Omphalitis of the newborn
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