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Forward Genetic Approaches in Chlamydia trachomatis
Published on: October 23, 2013
Symptoms, Signs and Long-term Prognosis of Vertically Transmitted Chlamydia trachomatis Infections
Minna Honkila1,2, Marjo Renko1,2, Tytti Pokka1,2
1From the Department of Children and Adolescents, Oulu University Hospital, Oulu, Finland.
Insights
Chlamydia trachomatis infections in infants can cause severe symptoms like conjunctivitis with blood-stained discharge and respiratory issues. While long-term effects are uncommon, diagnosis is often delayed, highlighting the need for prompt recognition of infant chlamydial infections.
Area of Science:
- Pediatrics
- Infectious Diseases
- Ophthalmology
Background:
- Chlamydia trachomatis infection is prevalent in pregnant women but infrequently diagnosed in infants.
- Understanding the clinical presentation and long-term outcomes of infant Chlamydia trachomatis infections is crucial.
Purpose of the Study:
- To analyze the symptoms, signs, and long-term prognosis of perinatally acquired Chlamydia trachomatis infections in infants.
- To improve the recognition and diagnosis of Chlamydia trachomatis in neonates and young children.
Main Methods:
- A population-based study utilizing national health registries from 1996-2011.
- Inclusion of 124 children with microbiologically confirmed Chlamydia trachomatis infection from a cohort of 933,823 births.
- Review of medical records up to 16 years of age for detailed analysis.
Main Results:
- Chlamydial conjunctivitis in infants often presented with blood-stained discharge (33/110).
- Lower respiratory tract infections were typically afebrile (30/32) with wheezing noted in 15/32; staccato cough was absent.
- Median diagnostic delay was 13 days for conjunctivitis and 25 days for lower respiratory tract infection, with one case of corneal scarring due to delayed treatment.
Conclusions:
- Blood-stained discharge is a characteristic sign of Chlamydia trachomatis conjunctivitis in infants.
- Infants with Chlamydia trachomatis infections experienced severe, prolonged symptoms, but long-term sequelae were infrequent.
- Significant diagnostic delays were observed, particularly for lower respiratory tract infections, underscoring the need for earlier identification.
Background:
Although Chlamydia trachomatis infection is common in pregnant women, such infections are rarely encountered in infants. To clarify the recognition of C. trachomatis infections in infants, we analyzed symptoms and signs of perinatally acquired chlamydial infection, together with its long-term prognosis in a large population-based patient series.
Methods:
A search through 2 national health registries covering 1996-2011, a cohort of 933,823 births, yielded 124 children with a microbiologically confirmed C. trachomatis infection. We then reviewed copies of the children's medical records up to 16 years of age.
Results:
One-third of the infants with chlamydial conjunctivitis (33/110) had spontaneous blood-stained discharge from the infected eye. The infants with C. trachomatis lower respiratory tract infection were mostly afebrile (30/32), and 15/32 of them had wheezing. Staccato cough was not recorded in any of the infants. The median diagnostic delay from the onset of the symptoms was 13 (range 4-374) days for conjunctivitis and 25 (range 10-149) days for lower respiratory tract infection. One neglected child developed bilateral corneal scars because of an untreated C. trachomatis infection.
Conclusions:
Blood-stained discharge was a typical finding in C. trachomatis conjunctivitis. The C. trachomatis-infected infants had severe and prolonged symptoms, but long-term consequences were rare. The diagnostic delay was long, especially among the infants with a C. trachomatis lower respiratory tract infection.
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