Transplacental Infections: Causes, Signs, and Treatment

Transplacental infections are conditions that occur when infections pass from a pregnant person to their unborn baby through the placenta. These infections can have a significant impact on the health of the developing fetus, potentially leading to various complications and health issues. It is crucial for healthcare providers to monitor and manage transplacental infections to minimize the risk of adverse outcomes for both the baby and the mother. Early detection and appropriate management are essential in ensuring the best possible health outcomes for the affected individuals.

What are the Symptoms of Transplacental Infections?

Transplacental infections can cause a range of symptoms in newborns due to exposure during pregnancy.

  • Microcephaly
  • Vision or hearing problems
  • Intellectual disabilities
  • Seizures
  • Growth delays
  • Feeding difficulties
  • Jaundice
  • Liver problems
  • Anemia
  • Respiratory issues

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Causes of Transplacental Infections

Transplacental infections are primarily caused by pathogens crossing from the mother's bloodstream through the placenta to the fetus during pregnancy.


Types of Transplacental Infections

Transplacental infections can present in various forms, impacting the health of both the mother and the developing fetus during pregnancy.

  • Cytomegalovirus (CMV) Infection: A common viral infection that can be transmitted from mother to fetus through the placenta, potentially causing birth defects and developmental issues.
  • Toxoplasmosis: Caused by the parasite Toxoplasma gondii, this infection can be passed from mother to baby through the placenta, leading to serious health problems in the newborn.
  • Rubella (German Measles) Infection: A viral infection that can result in severe birth defects if contracted by a pregnant woman and transmitted to the fetus through the placenta.
  • Syphilis: A bacterial infection that can be transmitted transplacentally, causing congenital syphilis in newborns if left untreated.
  • Zika Virus Infection: A mosquitoborne virus that can also be transmitted transplacentally, potentially leading to birth defects such as microcephaly and other neurological complications in infants.

Risk Factors

Transplacental infections can occur when certain viruses or bacteria pass from the mother to the fetus during pregnancy, potentially causing harm to the developing baby.

  • Maternal infections during pregnancy
  • Untreated sexually transmitted infections
  • Maternal immune system disorders
  • Poor prenatal care
  • Drug or alcohol abuse during pregnancy

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Diagnosis of Transplacental Infections

Transplacental infections are typically diagnosed through specific laboratory tests performed on the mother or newborn.

  • Ultrasound imaging
  • Blood tests
  • Amniocentesis
  • Cordocentesis
  • Polymerase chain reaction (PCR) testing
  • Fetal MRI
  • Placental histopathology

Treatment for Transplacental Infections

Transplacental infections are typically managed through a combination of monitoring, early detection, and supportive care to ensure the best outcomes for both the mother and the baby.

Antiviral Medications:

  • Antiviral medications can be used to treat transplacental infections caused by viruses by targeting the virus and stopping its replication within the body.

Antibiotics:

  • Antibiotics are prescribed to treat transplacental infections caused by bacteria. They work by killing or inhibiting the growth of bacteria in the body.

Antifungal Medications:

  • For transplacental infections caused by fungi, antifungal medications are used to eliminate the fungal infection and prevent its spread within the body.

Supportive Care:

  • Supportive care, such as intravenous fluids, nutritional support, and monitoring vital signs, is essential in managing transplacental infections to help the body fight the infection and recover.

Early Delivery:

  • In severe cases of transplacental infections where the health of the fetus or mother is at risk, early delivery of the baby may be necessary to prevent further complications and provide appropriate medical care.
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Frequently Asked Questions

What are transplacental infections?

Transplacental infections are those that pass from a pregnant person to their developing fetus through the placenta during pregnancy.

How do transplacental infections affect the fetus?

Transplacental infections can cause various complications in the fetus, such as birth defects, developmental delays, and even fetal death.

Which infections can be transmitted transplacentally?

Infections such as cytomegalovirus (CMV), toxoplasmosis, syphilis, rubella, and Zika virus are known to be transmitted transplacentally.

How can transplacental infections be prevented?

Preventive measures include practicing good hygiene, avoiding exposure to infectious agents, getting vaccinated before pregnancy, and seeking early prenatal care.

How are transplacental infections diagnosed and treated?

Transplacental infections can be diagnosed through prenatal screening tests and treated with medications to manage symptoms and reduce the risk of complications for the fetus.

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