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Abstract
Objective
Listeriosis is a rare but severe foodborne disease that is contracted by the consumption of food contaminated with Listeria, and perinatal listeriosis can cause major adverse pregnancy outcomes. In the current study, we sought to retrospectively analyze 10 years of perinatal outcomes due to listeriosis in western China.
Methods
Based on the isolation of Listeria monocytogenes (L. monocytogenes), we retrospectively reviewed the pregnancy-associated cases of listeriosis from June 2010 to February 2022 at our hospital. We investigated the crude incidence, clinical manifestations, perinatal management, and outcomes of perinatal listeriosis cases.
Results
We diagnosed a total of 28 cases of perinatal listeriosis during the study period at our hospital, including four cases of twin pregnancies. Of the 28 cases, 32.14% (9/28) were infected in the second trimester and 67.86% (19/28) in the third trimester. The fetal or neonatal mortality rate for perinatal listeriosis was high, with a crude fetal mortality rate of 46.88% (15/32) in the 32 offspring and a neonatal mortality rate of 47.06% (8/17) in the 17 live births.
Conclusion
Perinatal listeriosis exhibits high fetal or neonatal mortality. We recommend that appropriate antibiotics be administered in cases of perinatal listeriosis.
Ethical Approval
The study was conducted in accordance with the Declaration of Helsinki. Ethical approval was obtained from the Institutional Review Board of West China Second University Hospital (no. 2022-148), and informed consent was obtained from each patient.
Disclosure
The authors report no conflicts of interest for this work.