Neutrophil-to-lymphocyte ratios in pregnant women with familial mediterranean fever.

OBJECTIVE To investigate the association between maternal serum neutrophil-to-lymphocyte ratios (NLRs) and pregnancy outcomes in women with familial mediterranean fever (FMF). BACKGROUND FMF exists worldwide, it primarily affects Mediterranean countries METHODS: We retrospectively analysed data from 269 pregnant women, who underwent a routine prenatal follow-up and delivery in our hospital from 2016 to 2020. Clinical and demographic data, including age, gravida, parity, abortus, proteinuria in the first trimester, NLR, obstetrical complications, gestational age at delivery, birthweight were retrieved from the patients' medical records. Data from 67 pregnant women with FMF and 202 healthy pregnant women were compared. RESULTS Patients with FMF showed higher rates of preeclampsia and primary caesarean delivery; however, there were no differences between the groups in terms of other obstetric complications or adverse neonatal outcomes. In both the FMF and control groups, NLRs in the third trimester were significantly higher than those in the first trimester. Additionally, patients in the FMF group demonstrated higher NLRs than patients in the control group in the third trimester. CONCLUSIONS The NLRs are a haematological parameter that can be used to predict subclinical inflammation and the effects of ongoing subclinical inflammation on the pregnancy outcomes in women with FMF (Tab. 4, Ref. 39).