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Abstract
Purpose
To compare the clinical characteristics of pregnant women and perinatal outcomes with or without recurrent severe intrahepatic cholestasis of pregnancy (sICP), and identify possible factors associated with disease recurrence.
Methods
A retrospective study of 164,603 deliveries was performed to identify pregnant women diagnosed with sICP in the previous pregnancy from January 2012 to December 2020. Eligible patients were divided into two subgroups according to the status of disease recurrence in the second pregnancy: recurrent severe ICP (r-sICP) and non-recurrent severe ICP (nr-sICP). Demographics, clinical characteristics, maternal and perinatal outcomes, and potential factors linked to disease recurrence were analyzed.
Results
Totally 118 patients were enrolled and respectively classified into the r-sICP group (n = 63) and the nr-sICP group (n = 55). The proportion of hepatitis B virus (HBV) infection (HBsAg+, HBeAg+, HBcAb+) and early-onset ICP (<28 weeks) in the r-sICP group in the previous pregnancy were higher than those in the nr-sICP group. In the second delivery, neonatal outcomes in the r-sICP group were worse than those in the nr-sICP group. Logistic regression analysis of predictive factors for disease recurrence in the second delivery revealed that the combination of HBV infection and early-onset ICP in the previous delivery had the steepest receiver–operating characteristic (ROC) curve value 0.720 (95%CI: 0.629–0.812).
Conclusion
Patients with sICP displayed a higher recurrence rate in the second pregnancy. Being <28 weeks at the time of ICP diagnosis and having HBV infection in the previous delivery appear to be independent predictive factors for disease recurrence of sICP.
Disclosure statement
The authors declare that they have no conflict of interest.