Congenital syphilis
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| Congenital syphilis | |
| ICD-10 | A50 |
|---|---|
| ICD-9 | 090 |
| DiseasesDB | 12744 |
| MedlinePlus | 001344 |
| MeSH | D013590 |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
Congenital syphilis is syphilis present in utero and at birth, and occurs when a child is born to a mother with secondary or tertiary syphilis. Untreated syphilis results in a high risk of a bad outcome of pregnancy. Syphilis can cause miscarriages, premature births, stillbirths, or death of newborn babies. Some infants with congenital syphilis have symptoms at birth, but most develop symptoms later. Untreated babies can have deformities, delays in development, or seizures along with many other problems such as rash, fever, swollen liver and spleen, anemia, and jaundice. Sores on infected babies are infectious. Rarely, the symptoms of syphilis go unseen in infants so that they develop the symptoms of late-stage syphilis, including damage to their bones, teeth, eyes, ears, and brain.[1]
Epidemiology
According to the CDC, 40% of births to syphilitic mothers are stillborn, 40-70% of the survivors will be infected, and 12% of these will subsequently die.
Early congenital syphilis
This is a subset of cases of congenital syphilis. Newborns may be asymptomatic and are only identified on routine prenatal screening. If not identified and treated, these newborns develop poor feeding and rhinorrhea. By definition, early congenital syphilis occurs in children between 0 and 2 years old[2]. After, they can develop late congenital syphilis.
Symptomatic newborns, if not stillborn, are born premature, with enlargement of the liver, spleen, skeletal abnormalities, pneumonia and a bullous skin disease known as pemphigus syphiliticus.
Manifestations of congenital syphilis
- abnormal x-rays
- Hutchinson's Triad, a set of symptoms consisting of deafness, Hutchinson's teeth (centrally notched, widely-spaced peg-shaped upper central incisors), and interstitial keratitis (IK), an inflamation of the cornea which can lead to corneal scarring and potentially blindness
- mulberry molars (sixth year molars with multiple poorly developed cusps)
- frontal bossing
- poorly developed maxillae
- enlarged liver
- enlarged spleen
- petechiae
- other skin rash
- sabre shins
- anemia
- lymph node enlargement
- jaundice
- pseudoparalysis
- snuffles, the name given to rhinitis in this situation. When chronic, this can lead to saddle nose deformity.
- rhagades, linear scars at the angles of the mouth and nose result from bacterial infection of skin lesions
Death from congenital syphilis is usually through pulmonary hemorrhage.
Treatment
If a pregnant mother is identified as being infected with syphilis, treatment can effectively prevent congenital syphilis from developing in the unborn child, especially if she is treated before the sixteenth week of pregnancy. The child is at greatest risk of contracting syphilis when the mother is in the early stages of infection, but the disease can be passed at any point during pregnancy, even during delivery (should the child have not contracted it already). However, a woman in the secondary stage of syphilis decreases her child's risk of developing congenital syphilis by 98% if she receives treatment before the last month of pregnancy[3]. An afflicted child can be treated using antibiotics much like an adult, however any developmental symptoms are likely to be permanent.