Hepatitis and Pregnancy: Key Risks and Essential Preventative Steps

Hepatitis refers to the inflammation of the liver. In the general population, it commonly results from viral infections, alcohol consumption, obesity, or certain medications. During pregnancy, the immune system becomes significantly weakened, making it an immunosuppressed state. As a result, pregnant individuals face a higher risk of developing hepatitis.

Acute Viral Hepatitis

Acute viral hepatitis is the most common cause of hepatitis during pregnancy. Various viral infections can affect pregnant individuals, including Hepatitis A (HAV), Hepatitis E (HEV), Hepatitis B (HBV), Hepatitis C (HCV), and, in rare cases, Herpes Simplex Virus (HSV). Pregnant women who develop acute hepatitis from HEV or HSV have a significantly higher risk of acute liver failure compared to those who are not pregnant. This condition can be life-threatening.

Hepatitis A virus (HAV) primarily spreads through the fecal-oral route and typically does not lead to chronic infection. Because of this mode of transmission, the risk of mother-to-child transmission remains low. However, if HAV infection occurs in the second half of pregnancy, it can increase the chances of complications such as preterm labor, premature rupture of membranes, and placental separation.

Hepatitis E virus (HEV) also spreads through the fecal-oral route or contaminated water. While HEV infection is usually self-limiting, it can become severe during pregnancy, particularly in the third trimester. In such cases, HEV can lead to serious complications, including acute liver failure. Reported maternal fatality rates range from 16 to 20 percent, with deaths often resulting from liver failure, eclampsia, or hemorrhage.

Chronic Viral Hepatitis

Chronic viral hepatitis most often occurs in individuals with Hepatitis B (HBV) or Hepatitis C (HCV) infections. These conditions are usually identified in patients with a known history of liver disease or are detected incidentally during routine prenatal evaluations. If left untreated, chronic HBV or HCV infections can transmit the virus to the fetus or newborn.

The risk of vertical transmission, or mother-to-child transmission, is higher in cases of acute hepatitis compared to chronic infection. Early diagnosis of HBV and HCV during pregnancy is essential. To prevent transmission and manage the infection effectively, all pregnant women should undergo screening for these viruses.

Risk of Viral Hepatitis in Pregnant Women

Type of Viral Hepatitis	Potential risk to the Mother	Timing of Pregnancy with the Highest Risk
Acute liver failure, Premature delivery, or Hypertension	Preterm labor	2nd half of pregnancy, especially 3rd trimester
Hepatitis B	Flares of infection/Reactivation of virus	It can occur during pregnancy or the postpartum period
Hepatitis C	None
Hepatitis E	Acute liver failure, Premature delivery, or Hypertension	2nd and 3rd trimester
HSV Hepatitis	Acute liver failure	3rd trimester

 

Similarly, there is a risk to the fetus during and after the pregnancy. In the absence of prophylaxis, the risk of vertical transmission is up to 90% in case of HBV infection and 5 % in case of HCV infection. Children born to infected mothers may harbour the infection throughout their lives if not vaccinated at the right time.

Essential Measures to Prevent Hepatitis

Hepatitis is best prevented. Avoid food and drink prepared under unhygienic conditions to avoid hepatitis A and E. Avoid sharing needles, razors, and unprotected sex. If you are a health worker, handle blood, needles, and medical equipment with care to prevent hepatitis B and hepatitis C. Early diagnosis and prevention are the key to managing hepatitis in pregnancy.

Type of Viral Infection	Preventive Measures
HAV	Vaccinate pregnant women who will be traveling to endemic areas
HBV	Passive/active prophylaxis. HBIG (Immunoglobulin) and HBV vaccination within 12 hours of birth for all newborns of HBsAg mothers
HCV	None / No Vaccine available
HEV	None/ No Vaccine available

Hepatitis during pregnancy poses significant risks to both the mother and baby if left undiagnosed or untreated. Regular prenatal screening for hepatitis viruses is crucial for early detection and effective management of these infections. Preventative measures, such as vaccination, maintaining safe hygiene practices, and practicing protected sex, can significantly help reduce the risk of infection. With timely care, awareness, and proper precautions, many of the complications associated with hepatitis during pregnancy can be prevented, ensuring better outcomes for both the mother and her baby.