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Published on: June 28, 2024
Outcome of maternal syphilis at Rajavithi Hospital on offsprings
Varaporn Sangtawesin1, Watcharee Lertsutthiwong, Wiboon Kanjanapattanakul
1Neonatal Unit, Department of Pediatrics, Queen Sirikit National Institute of Child Health, Bangkok 10400, Thailand.
Insights
Untreated syphilis in pregnant women leads to a high risk of congenital syphilis in infants. Penicillin remains an effective treatment for both mothers and newborns, preventing severe outcomes.
Area of Science:
- Obstetrics and Gynecology
- Pediatrics
- Infectious Diseases
Background:
- Syphilis is a persistent public health concern, particularly in Thailand.
- Congenital syphilis presents diagnostic and clinical challenges due to variable infant presentation.
- Penicillin is clinically effective but congenital syphilis persists in infants.
Purpose of the Study:
- Evaluate outcomes of neonates born to mothers with syphilis.
- Assess the efficacy of prenatal syphilis treatment in preventing congenital syphilis.
- Determine the effectiveness of postnatal treatment for congenital syphilis.
Main Methods:
- A surveillance study involving 63 mothers and 64 infants was conducted in Bangkok, Thailand.
- Infants underwent physical examination, growth, development, and laboratory evaluations up to 6 months of age.
- Maternal syphilis treatment and infant outcomes were analyzed.
Main Results:
- Of 63 mothers, 84.13% received prenatal care; 36.51% received adequate penicillin treatment.
- The congenital syphilis rate was 14.06% (9 infants), with manifestations including hepatomegaly and skin desquamation.
- Adequate maternal penicillin treatment showed an 8.7% failure rate; followed-up infants showed normal growth and seronegativity.
Conclusions:
- Penicillin is effective for treating pregnant women and infants with syphilis.
- Untreated or inadequately treated maternal syphilis significantly increases the risk of congenital syphilis.
- Early diagnosis and adequate treatment are crucial for preventing congenital syphilis.
Background:
Syphilis remains an important sexually transmitted disease and continues to be an important problem in Thailand. Despite the clinical efficiency of penicillin in the treatment of pregnant patients with syphilis, infants with congenital syphilis are still encountered. Congenital syphilis poses significant challenges for the clinician because infants may be asymptomatic at birth or present with a highly variable clinical picture.
Objectives:
To evaluate the outcomes of neonates born to syphilitic mothers, the efficacy of antepartum treatment in the prevention of congenital syphilis and treatment for congenital syphilis after delivery.
Material And Method:
The surveillance conducted from September 1st, 2002 to December 31st, 2003, involved 63 mothers who were diagnosed with syphilis and their offsprings at Rajavithi Hospital, Bangkok, Thailand. Sixty-four infants had complete physical examination, growth, development and laboratory evaluation at Queen Sirikit National Institute of Child Health at the time of delivery and at the ages of 1, 2, 4 and 6 months.
Results:
There were 63 mothers and 64 infants recruited in the present study. Fifty-three mothers had prenatal care (84.13%). The VDRL was positive in the first prenatal care visit in 42 mothers (66.67%) and 11 mothers (17.46%) had seroconversion later on. Maternal treatment for syphilis included adequate penicillin 23 cases (36.51%), inadequate penicillin 5 cases (7.94%), erythromycin 9 cases (14.29%) and 26 mothers (41.27%) received no treatment at all. The mean maternal age, mean gestation age at treatment for syphilis and at delivery were 30.31 +/- 5.60 years, 32.75 +/- 6. 73 weeks and 38.60 +/- 1.57 weeks respectively. Failure rate in the adequate penicillin group was 8.7%. The mean birth weight of the 64 infants was 3034 +/- 495 grams, no syphilitic stillbirth occurred. Nine infants (14.06%) were identified with presumptive congenital syphilis. The manifestation include hepatomegaly (55.56%), desquamation of palms and soles (44.44%), radiological changes (33.33%) and abnormal cerebrospinal fluid (25%). The fluorescent treponemal antibody absorption immunoglobulin M (FTA-ABS IgM) tests of the infants were positive in 2 out of 9 cases (22.22%). The range of maternal and neonatal VDRL titer were between weakly reactive to 1.32 and nonreactive to 1:32 respectively. Fifty infants (78.13%) including 9 presumptive cases were followed-up, all had normal growth. Thirty-four infants (68%) who had re-evaluation for VDRL titers, were seronegative.
Conclusion:
Penicillin is the effective treatment of pregnant patients with syphilis and infants with congenital syphilis. The high risk of congenital syphilis correlates with untreated mothers and inadequate maternal syphilis treatment.
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