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Paediatric HIV infection
1Department of Clinical Sciences, Faculty of Medicine, University of Papua New Guinea, Boroko, Papua New Guinea.
Insights
Mother-to-child transmission of Human Immunodeficiency Virus (HIV) is a significant concern. Zidovudine treatment during pregnancy and after birth can reduce HIV transmission rates in infants.
Area of Science:
- Pediatrics
- Infectious Diseases
- Public Health
Background:
- HIV infection in children presents complex social, economic, and medical challenges.
- Mother-to-child transmission (MTCT) is the primary route of pediatric HIV infection.
- Understanding MTCT factors and disease natural history is crucial for intervention.
Purpose of the Study:
- To summarize current knowledge on pediatric HIV infection, focusing on MTCT.
- To highlight the impact of interventions on reducing vertical transmission.
- To describe the clinical manifestations of HIV in children.
Main Methods:
- Review of existing literature on pediatric HIV and MTCT.
- Analysis of studies on the efficacy of antiretroviral therapy in preventing vertical transmission.
- Description of common clinical presentations in children with HIV.
Main Results:
- Estimated vertical HIV transmission rates range from 14% to 39% across studies.
- A US study demonstrated zidovudine's effectiveness, reducing transmission from 25% to 8% when administered late pregnancy, peripartum, and neonatally.
- Clinical presentations vary, with nonspecific symptoms common in developing countries.
Conclusions:
- Pediatric HIV infection requires a multifaceted approach considering its family disease nature.
- Antiretroviral prophylaxis significantly reduces the risk of vertical HIV transmission.
- Early recognition and management of clinical signs are essential for children with HIV.
Abstract:
HIV infection in children is a family disease, with social, economic and medical aspects that make it one of the most challenging diseases of our time. Knowledge about the factors involved in mother-to-child transmission and the natural history of the disease is gradually increasing although there is still much to understand. As the majority of children become infected through mother-to-child transmission, perinatally acquired infection will parallel increases in heterosexual transmission and the numbers of infected women of childbearing age. Current estimates of the rate of vertical transmission range from 14% to 39% in different studies. The relative proportion of transmission occurring in utero, peripartum or postpartum may vary in different localities and remains unclear. A study recently carried out in the USA showed that zidovudine given late in pregnancy, peripartum and in the neonatal period decreases HIV transmission from 25% to 8%. The clinical presentation of HIV infection in children depends in part on exposure to different infections. In developing countries the children usually present with nonspecific signs and symptoms, such as failure to thrive, chronic diarrhoea, cough and recurrent bacterial infections. Other common presentations include generalized lymphadenopathy, oropharyngeal candidiasis, dermatitis, enlargement of parotid glands and neurological problems, including delayed development.