TY - CHAP M1 - Book, Section TI - Syphilis A1 - Gomella, Tricia Lacy A1 - Eyal, Fabien G. A1 - Bany-Mohammed, Fayez PY - 2020 T2 - Gomella's Neonatology: Management, Procedures, On-Call Problems, Diseases, and Drugs, 8e AB - Syphilis is a sexually transmitted infection caused by Treponema pallidum, which is a thin, motile spirochete that is extremely fastidious, surviving only briefly outside the host. The Centers for Disease Control and Prevention (CDC) issued a case definition of congenital syphilis (CS) in 2018 as follows: a condition caused by infection in utero with T pallidum. A wide spectrum of severity exists, from inapparent infection to severe cases that are clinically apparent at birth. Laboratory criteria for diagnosis entail demonstration of T pallidum by: (1) darkfield microscopy of lesions, body fluids, or neonatal nasal discharge; or (2) polymerase chain reaction (PCR) or other equivalent direct molecular methods of lesions, neonatal nasal discharge, placenta, umbilical cord, or autopsy material; or (3) immunohistochemistry or special stains (eg, silver staining) of specimens from lesions, placenta, umbilical cord, or autopsy material. Cases are classified as confirmed (by laboratory diagnosis) or probable. Probable CS is a condition affecting an infant whose mother had untreated or inadequately treated syphilis at delivery, regardless of signs in the infant, or an infant or child who has a reactive nontreponemal test for syphilis (Venereal Disease Research Laboratory [VDRL], rapid plasma reagin [RPR], or equivalent serologic methods) and any 1 of the following: (1) any evidence of CS on physical examination; (2) any evidence of CS on radiographs of long bones; (3) a reactive cerebrospinal fluid (CSF) VDRL test; (4) an elevated CSF leukocyte (white blood cell [WBC]) count or protein (without other cause) in a nontraumatic lumbar puncture. Suggested parameters for abnormal CSF WBC and protein values include the following: during the first 30 days of life, a CSF WBC count of >15 WBC/mm3 or a CSF protein >120 mg/dL is abnormal; after the first 30 days of life, a CSF WBC count of >5 WBC/mm3 or a CSF protein >40 mg/dL is abnormal, regardless of CSF serology. Adequate treatment is defined as completion of a penicillin-based regimen, in accordance with CDC treatment guidelines, appropriate for stage of infection, initiated ≥30 days before delivery. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/04/17 UR - accesspediatrics.mhmedical.com/content.aspx?aid=1168359004 ER -