Gastroenterology

Gastroenterology

Volume 130, Issue 4, April 2006, Pages 1129-1134
Gastroenterology

Clinical-liver, pancreas, and biliary tract
Acute Hepatitis A Infection in Pregnancy Is Associated With High Rates of Gestational Complications and Preterm Labor

https://doi.org/10.1053/j.gastro.2006.01.007Get rights and content

Background & Aims: Hepatitis A virus (HAV) infection is the most common cause of acute hepatitis but is rarely reported during pregnancy. Our aim was to evaluate the impact of acute HAV infection on pregnancy outcome. Methods: Consecutive admissions of 79,458 pregnant females during a 25-year period were retrospectively reviewed. Results: Thirteen cases of second and third trimester HAV infection were found and evaluated. Nine of the 13 patients (69%) developed gestational complications, including premature contractions (n = 4), placental separation (n = 2), premature rupture of membranes (n = 2), and vaginal bleeding (n = 1). In 8 of these patients, complications led to preterm labor, at a median of 34 gestational weeks (range, 31–37 weeks). Delivery was vaginal in 12 of the 13 cases; fetal distress was noted in a single case, and meconium in amniotic fluid in 2 cases. Median birth weight was 1778 grams and 3040 grams in preterm and term deliveries, respectively (P < .05). Child outcome was favorable in all cases. In 4 cases, neonatal serum HAV RNA levels were measured and found negative. The presence of fever and hypoalbuminemia were associated with delivery at an earlier gestational week. There was a positive relation between gestational week at diagnosis of HAV infection and birth week (r = 0.68, P = .02), suggesting a causality relationship. All mothers featured full recovery from HAV infection. Conclusions: Acute HAV infection during pregnancy is associated with high risk of maternal complications and preterm labor. HAV serology and maternal vaccination during prepregnancy evaluation should be considered in areas of the world in which susceptible adult populations exist.

Section snippets

Patients

We reviewed the computerized diagnoses of all pregnant patients who were admitted to Hadassah-Hebrew University Medical Center, Mount Scopus Campus, Jerusalem, Israel, between the years 1980 and 2005. The participating hospital serves as primary, secondary, and tertiary medical care facility. Included were patients who presented with HAV-induced acute hepatitis during pregnancy, diagnosed by positive anti-HAV immunoglobulin (Ig)M serology and absence of other etiologies for acute liver injury.

Baseline Characteristics of the Study Population

At the Hadassah-Hebrew University Medical Center, Mount Scopus Campus, 79,458 deliveries were carried out during 1980–2005. Thirty-four cases of acute hepatitis were recognized among hospitalized pregnant individuals. Among these, 13 cases of acute hepatitis caused by HAV infection were identified by a combination of acute elevation of serum aminotransferase activity, positive IgM anti-HAV serology, and absence of other causes of acute hepatitis. The 21 cases of non-HAV acute hepatitis were

Discussion

This retrospective study, focusing on the clinical characteristics of acute HAV hepatitis during pregnancy, reveals that HAV infection during second and third trimester of pregnancy is associated with a high rate of gestational complications and preterm labor. Furthermore, in our study, a causal relationship between HAV infection and preterm labor is suggested by the temporal association between the 2 events. Considering the relatively mild nature of maternal disease noticed in our subjects,

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